/* 
   Indra Gunawan Landing Page - Style System
   Theme: WhatsApp Premium Dark (Pure Black Base, Dark Grey Surfaces, WhatsApp Green Accents)
   Spec Compliance: DESIGN.md & SKILL.md Design Tokens
*/

/* 1. DESIGN TOKENS & SYSTEM ROOT VARIABLES */
:root {
    /* Typography Style foundations */
    --font-family-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-size-base: 16px;
    --font-weight-base: 400;
    --font-lineHeight-base: 16px;

    /* Typography Scale */
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-md: 12.8px;
    --font-size-lg: 13.2px;
    --font-size-xl: 13.33px;
    --font-size-2xl: 14px;
    --font-size-3xl: 14.2px;
    --font-size-4xl: 15px;
    
    /* Layout Header & Custom Headings scale (structured, legible scale) */
    --font-size-heading-lg: 32px;
    --font-size-heading-md: 24px;
    --font-size-heading-sm: 18px;

    /* Color Palette */
    --color-text-primary: #fafafa;
    --color-text-secondary: #8696a0; /* WhatsApp dark mode secondary text */
    --color-text-tertiary: #21c063;  /* WhatsApp green accent */
    --color-surface-base: #000000;
    --color-surface-muted: #161717;
    --color-surface-raised: #1d1f1f;
    --color-surface-strong: #262524;
    
    /* Border colors derived from border.muted=#ffffff with low opacity */
    --color-border-muted: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.16);

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 6px;
    --space-3: 8px;
    --space-4: 10px;
    --space-5: 12px;
    --space-6: 15px;
    --space-7: 16px;
    --space-8: 20px;
    --space-layout: 48px;

    /* Radius Tokens */
    --radius-xs: 4px;
    --radius-sm: 7.5px;
    --radius-md: 50px;
    --radius-lg: 9999px;

    /* Shadows */
    --shadow-1: rgba(10, 10, 10, 0.12) 0px 1px 4px 0px;
    --shadow-2: rgba(0, 0, 0, 0.1) 0px 1px 4px 0px, rgba(0, 0, 0, 0.1) 0px 1px 2px 0px;

    /* Motion Durations */
    --motion-duration-instant: 80ms;
    --motion-duration-fast: 120ms;
    --motion-duration-normal: 150ms;
}

/* 2. GLOBAL RESET & BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--color-surface-muted);
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family-primary);
    color: var(--color-text-primary);
    background-color: var(--color-surface-muted);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Accessibility: Keyboard-first Focus Ring */
button:focus-visible,
a:focus-visible,
.btn:focus-visible,
.toggle-switch:focus-visible,
.blog-modal-content:focus-visible {
    outline: 2.5px solid var(--color-text-tertiary);
    outline-offset: 3px;
}

/* Selection Highlight */
::selection {
    background-color: var(--color-text-tertiary);
    color: var(--color-surface-base);
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface-base);
}

::-webkit-scrollbar-thumb {
    background: var(--color-surface-strong);
    border-radius: var(--radius-xs);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-tertiary);
}

/* Custom Trailing Cursor (Green aesthetic) */
.custom-cursor-dot,
.custom-cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: width var(--motion-duration-fast) ease, height var(--motion-duration-fast) ease, background-color var(--motion-duration-fast) ease, border var(--motion-duration-fast) ease;
}

.custom-cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-text-tertiary);
}

.custom-cursor-outline {
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--color-text-tertiary);
}

/* Cursor Hover Enlargement */
body.cursor-hover .custom-cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-surface-base);
}

body.cursor-hover .custom-cursor-outline {
    width: 48px;
    height: 48px;
    border: 2px solid var(--color-text-tertiary);
    background-color: rgba(33, 192, 99, 0.08);
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Generic Section Styles */
section {
    padding: var(--space-8) 0 calc(var(--space-8) * 3) 0;
    position: relative;
    border-bottom: 1px solid var(--color-border-muted);
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--space-8) * 2);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.section-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.section-h2 {
    font-size: var(--font-size-heading-lg);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.section-desc {
    color: var(--color-text-secondary);
    max-width: 600px;
    font-size: var(--font-size-2xl);
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-8);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--motion-duration-fast) ease;
    cursor: pointer;
    border: none;
}

/* Premium WhatsApp Green Primary Button (WCAG 2.2 AA Contrast Compliant: Black text on Green) */
.btn-primary {
    background-color: var(--color-text-tertiary);
    color: var(--color-surface-base);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background-color: #2cdc73;
    box-shadow: 0 4px 15px rgba(33, 192, 99, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    background-color: #1da354;
}

/* Secondary Button: Raised Panel style */
.btn-secondary {
    background-color: var(--color-surface-raised);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-muted);
}

.btn-secondary:hover {
    background-color: var(--color-surface-strong);
    border-color: var(--color-text-tertiary);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}


/* 3. HEADER & NAVIGATION BAR */
header {
    position: fixed;
    top: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    z-index: 1000;
    background: rgba(22, 23, 23, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-lg);
    padding: var(--space-4) var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--motion-duration-normal) ease;
    box-shadow: var(--shadow-2);
}

header.scrolled {
    width: 100%;
    max-width: 100%;
    top: 0;
    border-radius: 0;
    border-top: none;
    border-left: none;
    border-right: none;
    background: rgba(22, 23, 23, 0.95);
    padding: var(--space-5) var(--space-8);
}

.logo-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.logo-tech {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: var(--color-text-primary);
    letter-spacing: 0.5px;
}

.logo-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: var(--space-7);
    align-items: center;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-2xl);
    font-weight: 500;
    transition: color var(--motion-duration-fast) ease;
}

.nav-links a:hover {
    color: var(--color-text-tertiary);
}

.cta-nav {
    background-color: var(--color-text-tertiary) !important;
    color: var(--color-surface-base) !important;
    padding: var(--space-2) var(--space-6) !important;
    border-radius: var(--radius-md) !important;
    font-weight: 700 !important;
}

.cta-nav:hover {
    background-color: #2cdc73 !important;
    transform: translateY(-1px);
}

.cta-nav-cv {
    background-color: transparent !important;
    color: var(--color-text-primary) !important;
    border: 1px solid var(--color-border-strong) !important;
    padding: var(--space-2) var(--space-6) !important;
    border-radius: var(--radius-md) !important;
    font-weight: 700 !important;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    transition: all var(--motion-duration-fast) ease;
}

.cta-nav-cv:hover {
    background-color: var(--color-surface-strong) !important;
    border-color: var(--color-text-tertiary) !important;
    color: var(--color-text-tertiary) !important;
    transform: translateY(-1px);
}


/* Mobile Menu Toggle button */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--motion-duration-fast) ease;
}

.menu-btn:hover {
    color: var(--color-text-tertiary);
}


/* 4. HERO SECTION */
.hero-sec {
    position: relative;
    padding: 160px 0 calc(var(--space-8) * 3) 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 75% 25%, rgba(33, 192, 99, 0.05) 0%, transparent 60%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-8);
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.hero-badge {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--color-text-tertiary);
}

.hero-badge span {
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--color-text-tertiary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--color-text-tertiary);
    animation: pulse-glow 2s infinite;
}

.hero-h1 {
    font-size: clamp(2rem, 3.5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-text-primary);
}

.hero-sub {
    font-size: var(--font-size-4xl);
    color: var(--color-text-secondary);
    max-width: 600px;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Trust Logos */
.trust-container {
    margin-top: calc(var(--space-8) * 1.5);
}

.trust-title {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.trust-logos {
    display: flex;
    gap: var(--space-8);
    align-items: center;
    flex-wrap: wrap;
}

.trust-logo-item {
    display: flex;
    align-items: center;
    color: var(--color-text-secondary);
    opacity: 0.65;
    transition: opacity var(--motion-duration-fast) ease, color var(--motion-duration-fast) ease;
}

.trust-logo-item:hover {
    opacity: 1;
    color: var(--color-text-tertiary);
}

/* Hero Right: Clean Graphic Framework */
.hero-visual {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1.05;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-box {
    position: relative;
    width: 90%;
    height: 90%;
    border-radius: var(--radius-sm);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    box-shadow: var(--shadow-2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--space-8);
}

/* Clean grid texture */
.visual-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
}

.visual-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 2;
}

.hud-dots {
    display: flex;
    gap: var(--space-2);
}

.hud-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--color-surface-strong);
}

.hud-dot.active {
    background-color: var(--color-text-tertiary);
    box-shadow: 0 0 6px var(--color-text-tertiary);
}

.hud-code {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    letter-spacing: 1px;
}

.visual-avatar-placeholder {
    width: 190px;
    height: 190px;
    border-radius: 50%;
    background: var(--color-surface-base);
    border: 3px solid var(--color-surface-strong);
    align-self: center;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    z-index: 2;
    transition: border-color var(--motion-duration-fast) ease;
}

.visual-avatar-placeholder:hover {
    border-color: var(--color-text-tertiary);
}

.hero-profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.visual-profile-card {
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    z-index: 2;
}

.vpc-name {
    font-weight: 700;
    font-size: var(--font-size-3xl);
}

.vpc-title {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.vpc-skills {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.vpc-tag {
    font-size: var(--font-size-xs);
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
    color: var(--color-text-secondary);
}

/* Floating Widgets styling */
.floating-hud-1,
.floating-hud-2 {
    position: absolute;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    box-shadow: var(--shadow-2);
    z-index: 3;
}

.floating-hud-1 {
    top: 15%;
    left: -5%;
    animation: float-widget 6s ease-in-out infinite;
}

.floating-hud-2 {
    bottom: 25%;
    right: -10%;
    animation: float-widget 6s ease-in-out infinite;
    animation-delay: 3s;
}

.hud-icon-box {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-xs);
    background: rgba(33, 192, 99, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-text-tertiary);
    font-size: 1.1rem;
}

.hud-text-box span {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
}

.hud-text-box font {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
}


/* 5. CREDENTIALS & ABOUT SECTION */
.cred-sec {
    background-color: var(--color-surface-raised);
}

.cred-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: start;
}

.cred-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-7);
}

.cred-text {
    font-size: var(--font-size-4xl);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.spec-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.spec-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-5);
    border-radius: var(--radius-sm);
}

.spec-icon-box {
    color: var(--color-text-tertiary);
    flex-shrink: 0;
    margin-top: var(--space-1);
}

.spec-info h4 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.spec-info p {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

/* Certifications & Education (Right Side) */
.cred-right {
    display: flex;
    flex-direction: column;
    gap: calc(var(--space-8) * 2);
}

.badge-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.badge-card {
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-6);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-3);
    transition: all var(--motion-duration-normal) ease;
}

.badge-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-1);
}

.badge-visual {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(33, 192, 99, 0.08);
    border: 1px solid rgba(33, 192, 99, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-text-tertiary);
}

.badge-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.3;
}

.badge-issuer {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.edu-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.edu-title-h3 {
    font-size: var(--font-size-heading-sm);
    font-weight: 700;
    margin-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-surface-strong);
    padding-bottom: var(--space-2);
}

.edu-card {
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-5);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.edu-info h4 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.edu-info p {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

.edu-status {
    font-size: var(--font-size-xs);
    font-weight: 700;
    background: rgba(33, 192, 99, 0.1);
    color: var(--color-text-tertiary);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
}


/* 6. CORE COMPETENCIES SECTION */
.comp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-8);
}

.comp-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-8);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    transition: all var(--motion-duration-normal) ease;
    position: relative;
    overflow: hidden;
}

.comp-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-text-tertiary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--motion-duration-normal) ease;
}

.comp-card:hover {
    border-color: rgba(33, 192, 99, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.comp-card:hover::after {
    transform: scaleX(1);
}

.comp-icon-box {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-xs);
    background: rgba(33, 192, 99, 0.08);
    color: var(--color-text-tertiary);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(33, 192, 99, 0.15);
}

.comp-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

.comp-desc {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    line-height: 1.6;
}


/* 7. GALLERY & SOCIAL PROOF SECTION */
.gallery-sec {
    background-color: var(--color-surface-raised);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: var(--space-8);
}

.gallery-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border-muted);
    background: var(--color-surface-strong);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: all var(--motion-duration-normal) ease;
}

.gallery-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.gallery-frame-wrapper {
    position: relative;
    width: 100%;
    height: 230px;
    background: #090c13;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-frame-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: blur(12px) brightness(0.35);
    transform: scale(1.1);
}

.gallery-frame-img {
    position: relative;
    z-index: 2;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform var(--motion-duration-normal) ease;
}

.gallery-card:hover .gallery-frame-img {
    transform: scale(1.03);
}

.gallery-zoom-hint {
    position: absolute;
    inset: 0;
    z-index: 3;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
    font-weight: 600;
    opacity: 0;
    transition: opacity var(--motion-duration-fast) ease;
}

.gallery-card:hover .gallery-zoom-hint {
    opacity: 1;
}

.gallery-card-body {
    padding: var(--space-5) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    background: var(--color-surface-strong);
    border-top: 1px solid var(--color-border-muted);
}

.gcp-title {
    font-weight: 700;
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gcp-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    background: rgba(33, 192, 99, 0.1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
    align-self: flex-start;
}

/* =============================================================================
   GALLERY LIGHTBOX POPUP MODAL STYLES
   ============================================================================= */
.gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-duration-normal) ease;
}

.gallery-lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 7, 12, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.lightbox-dialog {
    position: relative;
    z-index: 2;
    width: 92%;
    max-width: 960px;
    max-height: 90vh;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: lightboxPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes lightboxPop {
    from { transform: scale(0.92); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.lightbox-close-btn {
    position: absolute;
    top: 15px;
    right: 18px;
    z-index: 10;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--color-border-muted);
    color: var(--color-text-primary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--motion-duration-fast) ease;
}

.lightbox-close-btn:hover {
    background: #EF4444;
    color: #ffffff;
    border-color: #EF4444;
    transform: rotate(90deg);
}

.lightbox-body {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    max-height: 85vh;
}

@media (max-width: 820px) {
    .lightbox-body {
        grid-template-columns: 1fr;
        max-height: 90vh;
        overflow-y: auto;
    }
}

.lightbox-media-wrapper {
    background: #04060a;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    position: relative;
    min-height: 320px;
    max-height: 75vh;
}

.lightbox-media-wrapper img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-xs);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.lightbox-details {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--space-6);
    background: var(--color-surface-muted);
    border-left: 1px solid var(--color-border-muted);
}

@media (max-width: 820px) {
    .lightbox-details {
        border-left: none;
        border-top: 1px solid var(--color-border-muted);
    }
}

.lightbox-header-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.lightbox-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    background: rgba(33, 192, 99, 0.1);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-xs);
    align-self: flex-start;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.lightbox-title {
    font-size: var(--font-size-heading-md);
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1.3;
}

.lightbox-caption {
    font-size: var(--font-size-2xl);
    color: var(--color-text-secondary);
    line-height: 1.7;
    flex-grow: 1;
    overflow-y: auto;
    max-height: 200px;
    padding-right: var(--space-2);
}

.lightbox-footer-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border-muted);
}

.lightbox-nav-btn {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    color: var(--color-text-primary);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--motion-duration-fast) ease;
}

.lightbox-nav-btn:hover {
    background: var(--color-text-tertiary);
    color: var(--color-surface-base);
    border-color: var(--color-text-tertiary);
}

.lightbox-counter {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-secondary);
}

/* 8. PORTFOLIO SHOWCASE SECTION */
.port-sec {
    background-color: var(--color-surface-muted);
}

.port-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: var(--space-8);
}

.port-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--motion-duration-normal) ease;
    display: flex;
    flex-direction: column;
}

.port-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.port-mockup {
    width: 100%;
    height: 190px;
    background: #090c13;
    border-bottom: 1px solid var(--color-border-muted);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.port-mockup-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: blur(12px) brightness(0.3);
    transform: scale(1.1);
}

.port-mockup-img {
    position: relative;
    z-index: 2;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform var(--motion-duration-normal) ease;
}

.port-card:hover .port-mockup-img {
    transform: scale(1.03);
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mockup-controls {
    display: flex;
    gap: var(--space-1);
}

.mockup-circle {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-surface-strong);
}

.mockup-title {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: 700;
}

.mockup-body {
    flex-grow: 1;
    margin-top: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mockup-line {
    height: 3px;
    border-radius: var(--radius-xs);
    background-color: var(--color-surface-strong);
}

.mockup-line.short { width: 35%; }
.mockup-line.medium { width: 65%; }
.mockup-line.long { width: 85%; }

.mockup-line.accent {
    background-color: rgba(33, 192, 99, 0.15);
    border: 1px solid var(--color-text-tertiary);
}

.mockup-footer {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
}

.port-info {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    flex-grow: 1;
}

.port-tech {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    align-self: flex-start;
    background: rgba(33, 192, 99, 0.08);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
}

.port-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

.port-desc {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.port-outcome {
    border-top: 1px solid var(--color-border-muted);
    padding-top: var(--space-5);
    margin-top: auto;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    gap: var(--space-3);
}

.port-outcome-icon {
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}


/* 9. ARTICLES & BLOG SECTION */
.blog-sec {
    background-color: var(--color-surface-raised);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
}

.blog-card {
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    transition: all var(--motion-duration-normal) ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.blog-card-image-wrapper {
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-bottom: 1px solid var(--color-border-muted);
}

.blog-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--motion-duration-normal) ease;
}

.blog-card:hover .blog-card-image {
    transform: scale(1.04);
}

.blog-card-body {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    flex-grow: 1;
}

.blog-modal-image-wrapper {
    width: 100%;
    height: 320px;
    overflow: hidden;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-7);
    border: 1px solid var(--color-border-muted);
}

.blog-modal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.blog-card-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-card-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    background: rgba(33, 192, 99, 0.08);
    border: 1px solid rgba(33, 192, 99, 0.15);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
}

.blog-card-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.blog-card-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-primary);
}

.blog-card-desc {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-top: auto;
    transition: gap var(--motion-duration-instant) ease;
}

.blog-card-footer svg {
    transition: transform var(--motion-duration-instant) ease;
}

.blog-card:hover .blog-card-footer {
    gap: var(--space-4);
}

.blog-card:hover .blog-card-footer svg {
    transform: translateX(3px);
}


/* 10. BLOG MODAL WRAPPER (GLASSMORPHIC SYSTEM) */
.blog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--motion-duration-normal) ease, visibility var(--motion-duration-normal) ease;
}

.blog-modal.active {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.blog-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.blog-modal-content {
    position: relative;
    width: 90%;
    max-width: 760px;
    max-height: 85vh;
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: var(--space-8);
    z-index: 10;
    overflow-y: auto;
    box-shadow: var(--shadow-2);
    transform: translateY(30px);
    transition: transform var(--motion-duration-normal) cubic-bezier(0.16, 1, 0.3, 1);
}

.blog-modal.active .blog-modal-content {
    transform: translateY(0);
}

.blog-modal-close {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-size: 2rem;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    transition: color var(--motion-duration-fast) ease, transform var(--motion-duration-fast) ease;
    z-index: 12;
}

.blog-modal-close:hover {
    color: var(--color-text-tertiary);
    transform: scale(1.1) rotate(90deg);
}

.blog-modal-tag {
    display: inline-block;
    background: rgba(33, 192, 99, 0.08);
    border: 1px solid rgba(33, 192, 99, 0.15);
    color: var(--color-text-tertiary);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-xs);
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--space-5);
    letter-spacing: 0.5px;
}

.blog-modal-title {
    font-size: var(--font-size-heading-lg);
    font-weight: 800;
    line-height: 1.3;
    color: var(--color-text-primary);
    margin-bottom: var(--space-5);
}

.blog-modal-meta {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

.blog-modal-divider {
    border: none;
    border-top: 1px solid var(--color-border-muted);
    margin: var(--space-8) 0;
}

.blog-modal-body {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
}

.blog-modal-body p {
    margin-bottom: var(--space-7);
}

.blog-modal-body h2 {
    font-size: var(--font-size-heading-md);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: calc(var(--space-8) * 1.5);
    margin-bottom: var(--space-5);
    border-left: 3px solid var(--color-text-tertiary);
    padding-left: var(--space-4);
}

.blog-modal-body h3 {
    font-size: var(--font-size-heading-sm);
    font-weight: 700;
    color: var(--color-text-tertiary);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.blog-modal-body blockquote {
    background: var(--color-surface-raised);
    border-left: 4px solid var(--color-text-tertiary);
    padding: var(--space-6) var(--space-8);
    border-radius: var(--radius-xs);
    margin: var(--space-8) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}

.blog-modal-body ul, 
.blog-modal-body ol {
    margin-left: var(--space-8);
    margin-bottom: var(--space-8);
}

.blog-modal-body li {
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
}

.blog-modal-body strong {
    color: var(--color-text-primary);
    font-weight: 700;
}

/* All Articles Catalog Modal Styles */
.blog-catalog-content {
    max-width: 920px;
}

.catalog-search-wrapper {
    margin-top: var(--space-5);
}

.catalog-search-input {
    width: 100%;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text-primary);
    padding: var(--space-5) var(--space-6);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-2xl);
    font-family: var(--font-family-primary);
    transition: all var(--motion-duration-fast) ease;
}

.catalog-search-input:focus {
    outline: none;
    border-color: var(--color-text-tertiary);
    box-shadow: 0 0 12px rgba(33, 192, 99, 0.2);
}

.blog-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-6);
    max-height: 55vh;
    overflow-y: auto;
    padding-right: var(--space-2);
}


/* 11. PRICING & SYLLABUS SECTION */
.price-sec {
    background-color: var(--color-surface-muted);
}

.pricing-notice-card {
    max-width: 700px;
    margin: var(--space-8) auto 0 auto;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-sm);
    padding: calc(var(--space-8) * 2) var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-6);
    transition: transform var(--motion-duration-normal) ease, border-color var(--motion-duration-normal) ease;
    box-shadow: var(--shadow-2);
}

.pricing-notice-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-text-tertiary);
}

.notice-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(33, 192, 99, 0.08);
    color: var(--color-text-tertiary);
    border: 1px solid rgba(33, 192, 99, 0.15);
    box-shadow: 0 0 15px rgba(33, 192, 99, 0.1);
    transition: transform var(--motion-duration-normal) ease;
}

.pricing-notice-card:hover .notice-icon {
    transform: scale(1.08) rotate(5deg);
}

.notice-text {
    font-size: var(--font-size-4xl);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.notice-text strong {
    color: var(--color-text-primary);
    font-weight: 700;
}

.notice-cta {
    margin-top: var(--space-2);
}

.pricing-wa-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-text-tertiary) !important;
    color: var(--color-surface-base) !important;
    border: none;
    padding: var(--space-5) calc(var(--space-8) * 1.5) !important;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-2xl) !important;
    font-weight: 700;
    text-decoration: none;
    transition: all var(--motion-duration-fast) ease;
}

.pricing-wa-btn:hover {
    background-color: #2cdc73 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(33, 192, 99, 0.4);
}


/* 12. FOOTER SECTION */
.footer-sec {
    position: relative;
    padding: calc(var(--space-8) * 2) 0 var(--space-8) 0;
    background-color: var(--color-surface-strong);
    border-top: 1px solid var(--color-border-muted);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: calc(var(--space-8) * 2);
    margin-bottom: calc(var(--space-8) * 2);
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.footer-quote {
    font-size: var(--font-size-heading-md);
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-primary);
}

.footer-desc {
    color: var(--color-text-secondary);
    font-size: var(--font-size-2xl);
    max-width: 500px;
    line-height: 1.6;
}

.footer-right {
    display: flex;
    flex-direction: column;
    gap: var(--space-7);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-8);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-2);
}

.fr-title {
    font-size: var(--font-size-heading-sm);
    font-weight: 700;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    list-style: none;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.contact-info-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-xs);
    background: rgba(33, 192, 99, 0.08);
    color: var(--color-text-tertiary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
}

.contact-info-text font {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.contact-info-text span {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
}

.footer-bottom {
    border-top: 1px solid var(--color-border-muted);
    padding-top: var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-5);
}

.copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    gap: var(--space-5);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--motion-duration-fast) ease;
}

.footer-links a:hover {
    color: var(--color-text-tertiary);
}

/* Footer Social Links */
.footer-social {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-6);
}

.social-icon-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid var(--color-border-muted);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all 0.22s ease;
    backdrop-filter: blur(4px);
}

.social-icon-link svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.social-icon-link:hover {
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* Instagram hover — gradient border effect */
.social-icon-link[aria-label="Instagram"]:hover {
    background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045);
    color: #fff;
}

/* LinkedIn hover — brand blue */
.social-icon-link[aria-label="LinkedIn"]:hover {
    background: #0077b5;
    color: #fff;
}

/* Threads hover — near-black */
.social-icon-link[aria-label="Threads"]:hover {
    background: #1a1a1a;
    color: #fff;
    border-color: rgba(255,255,255,0.15);
}

/* =============================================================================
   13.5. AI PRODUCTS & DIGITAL KATALOG SECTION STYLES
   ============================================================================= */
.products-sec {
    background-color: var(--color-surface-muted);
    border-bottom: 1px solid var(--color-border-muted);
}

/* On Progress Development Banner Card */
.products-dev-card {
    max-width: 760px;
    margin: 0 auto;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    border-radius: 16px;
    padding: calc(var(--space-8) * 1.5) var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
    box-shadow: var(--shadow-2);
    position: relative;
    overflow: hidden;
}

.products-dev-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-text-tertiary), transparent);
}

.dev-card-icon {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(33, 192, 99, 0.08);
    border: 1px solid rgba(33, 192, 99, 0.2);
    color: var(--color-text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(33, 192, 99, 0.12);
}

.dev-badge {
    font-size: var(--font-size-xs);
    font-weight: 800;
    letter-spacing: 1.5px;
    color: #facc15;
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid rgba(234, 179, 8, 0.25);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-md);
    text-transform: uppercase;
}

.dev-card-title {
    font-size: var(--font-size-heading-md);
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1.3;
}

.dev-card-desc {
    font-size: var(--font-size-2xl);
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 620px;
}

.dev-card-cta {
    margin-top: var(--space-4);
}

.product-filter-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: calc(var(--space-8) * 1.5);
}

.product-filter-btn {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    color: var(--color-text-secondary);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--motion-duration-fast) ease;
}

.product-filter-btn:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-strong);
    background: var(--color-surface-strong);
}

.product-filter-btn.active {
    background: var(--color-text-tertiary);
    color: var(--color-surface-base);
    border-color: var(--color-text-tertiary);
    box-shadow: 0 4px 12px rgba(33, 192, 99, 0.25);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: var(--space-8);
}

.product-card {
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-muted);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--motion-duration-normal) ease;
}

.product-card:hover {
    border-color: var(--color-text-tertiary);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.product-cover-wrapper {
    width: 100%;
    height: 180px;
    background: #090c13;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--color-border-muted);
}

.product-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--motion-duration-normal) ease;
}

.product-card:hover .product-cover-img {
    transform: scale(1.04);
}

.product-cover-placeholder {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #161a23 0%, #0d1117 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-tertiary);
    border-bottom: 1px solid var(--color-border-muted);
}

.product-card-body {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    flex-grow: 1;
}

.product-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-cat-tag {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    background: rgba(33, 192, 99, 0.1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-xs);
    text-transform: uppercase;
}

.product-price-badge {
    font-size: var(--font-size-xs);
    font-weight: 800;
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-xs);
    letter-spacing: 0.5px;
}

.product-price-badge.badge-free {
    background: rgba(37, 99, 235, 0.15);
    color: #60a5fa;
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.product-price-badge.badge-paid {
    background: rgba(234, 179, 8, 0.15);
    color: #facc15;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.product-card-title {
    font-size: var(--font-size-heading-sm);
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1.4;
}

.product-card-desc {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex-grow: 1;
}

.product-card-footer {
    padding-top: var(--space-4);
    margin-top: auto;
}

.product-cta-btn {
    width: 100%;
    justify-content: center;
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-md);
}



@keyframes pulse-glow {
    0% {
        transform: scale(1);
        box-shadow: 0 0 4px var(--color-text-tertiary);
    }
    50% {
        transform: scale(1.3);
        box-shadow: 0 0 12px var(--color-text-tertiary);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 4px var(--color-text-tertiary);
    }
}

@keyframes float-widget {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}


/* 14. RESPONSIVE BREAKPOINTS & COMPONENT FAMILY OVERFLOWS */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: calc(var(--space-8) * 2);
        text-align: center;
    }

    .hero-badge {
        align-self: center;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-visual {
        max-width: 420px;
        margin: 0 auto;
    }

    .trust-logos {
        justify-content: center;
    }

    .cred-grid {
        grid-template-columns: 1fr;
        gap: calc(var(--space-8) * 2);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 768px) {
    header {
        padding: var(--space-4) var(--space-6);
    }

    .nav-links {
        display: none; /* Toggle state handled via JS classes */
    }

    .menu-btn {
        display: block;
    }

    .badge-grid {
        grid-template-columns: 1fr;
    }

    .pricing-notice-card {
        padding: var(--space-8) var(--space-5);
    }
    
    .notice-text {
        font-size: var(--font-size-2xl);
    }
}

/* =============================================================================
   15. FLOATING AI CHATBOT WIDGET STYLES (WhatsApp Dark Glassmorphism)
   ============================================================================= */
.chatbot-widget-container {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 9999;
    font-family: inherit;
}

.chatbot-trigger-btn {
    background: linear-gradient(135deg, #21c063 0%, #15803d 100%);
    color: #ffffff;
    border: none;
    padding: 12px 20px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(33, 192, 99, 0.4);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.chatbot-trigger-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 30px rgba(33, 192, 99, 0.55);
}

.chatbot-badge-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    background: #38bdf8;
    border: 2px solid #0d1117;
    border-radius: 50%;
    animation: pulse-glow 2s infinite;
}

.chatbot-window {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 32px);
    height: 530px;
    max-height: calc(100vh - 110px);
    background: rgba(13, 17, 23, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.chatbot-window.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.chatbot-header {
    background: rgba(22, 27, 34, 0.9);
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
}

.chatbot-avatar {
    position: relative;
    width: 42px;
    height: 42px;
}

.chatbot-avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid #21c063;
}

.chatbot-status-online {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 11px;
    height: 11px;
    background: #21c063;
    border: 2px solid #0d1117;
    border-radius: 50%;
}

.chatbot-header-info {
    flex-grow: 1;
}

.chatbot-header-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #f0f6fc;
}

.chatbot-header-subtitle {
    font-size: 0.75rem;
    color: #21c063;
    margin-top: 1px;
}

.chatbot-close-btn {
    background: transparent;
    border: none;
    color: #8b949e;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px 8px;
    border-radius: 6px;
    transition: color 0.2s ease;
}

.chatbot-close-btn:hover {
    color: #f0f6fc;
}

.chatbot-suggestions {
    padding: 10px 12px;
    background: rgba(18, 22, 29, 0.6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    gap: 6px;
    overflow-x: auto;
    white-space: nowrap;
}

.chatbot-suggestions::-webkit-scrollbar {
    display: none;
}

.suggestion-chip {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #c9d1d9;
    padding: 5px 11px;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.suggestion-chip:hover {
    background: rgba(33, 192, 99, 0.15);
    border-color: #21c063;
    color: #ffffff;
}

.chatbot-messages {
    flex-grow: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-msg {
    display: flex;
    width: 100%;
}

.chat-msg.bot-msg {
    justify-content: flex-start;
}

.chat-msg.user-msg {
    justify-content: flex-end;
}

.msg-bubble {
    max-width: 84%;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 0.88rem;
    line-height: 1.5;
    word-break: break-word;
}

.bot-msg .msg-bubble {
    background: #161b22;
    color: #e6edf3;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-top-left-radius: 3px;
}

.user-msg .msg-bubble {
    background: #15803d;
    color: #ffffff;
    border-top-right-radius: 3px;
}

.typing-bubble {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
}

.thinking-bubble {
    background: rgba(33, 192, 99, 0.08) !important;
    border: 1px dashed rgba(33, 192, 99, 0.3) !important;
    color: #a3e635 !important;
    font-size: 0.82rem;
}

.thinking-icon {
    font-size: 0.9rem;
    animation: pulse-glow 1.5s infinite;
}

.thinking-text {
    font-weight: 500;
    font-style: italic;
    color: #86efac;
    margin-right: 4px;
}

.typing-dot {
    width: 5px;
    height: 5px;
    background: #21c063;
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
    40% { transform: scale(1.2); opacity: 1; }
}

.chatbot-input-bar {
    padding: 10px 12px;
    background: #161b22;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chatbot-input {
    flex-grow: 1;
    background: #0d1117;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 9px 15px;
    color: #f0f6fc;
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.chatbot-input:focus {
    border-color: #21c063;
}

.chatbot-send-btn {
    background: #21c063;
    color: #0d1117;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.2s ease, background 0.2s ease;
}

.chatbot-send-btn:hover {
    background: #22c55e;
    transform: scale(1.05);
}

/* =============================================================================
   16. CHECKOUT MODAL & SPINNER STYLES
   ============================================================================= */
.checkout-step {
    display: none;
    transition: opacity var(--motion-duration-normal) ease;
}

.checkout-step.active {
    display: block;
}

.spinner {
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--color-text-tertiary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.qris-payment-container {
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Enhanced Magazine Blog Catalog Modal */
.blog-catalog-content {
    max-width: 1040px !important;
    width: 92vw !important;
    max-height: 90vh !important;
    display: flex !important;
    flex-direction: column !important;
    padding: var(--space-8) !important;
    border-radius: var(--radius-lg) !important;
}

.catalog-search-wrapper {
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
}

.catalog-search-input {
    width: 100%;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text-primary);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family-primary);
    transition: all var(--motion-duration-fast) ease;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.catalog-search-input:focus {
    outline: none;
    border-color: var(--color-text-tertiary);
    box-shadow: 0 0 16px rgba(33, 192, 99, 0.25);
}

.blog-catalog-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)) !important;
    gap: var(--space-6) !important;
    max-height: 62vh !important;
    overflow-y: auto !important;
    padding: var(--space-2) var(--space-3) var(--space-6) var(--space-1) !important;
}

/* Catalog Cards styling inside modal */
.blog-catalog-grid .blog-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--motion-duration-normal) ease, border-color var(--motion-duration-normal) ease, box-shadow var(--motion-duration-normal) ease;
    cursor: pointer;
}

.blog-catalog-grid .blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-text-tertiary);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.catalog-read-btn {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-tertiary);
    padding-top: var(--space-4);
    transition: color var(--motion-duration-fast) ease;
}

.blog-card:hover .catalog-read-btn {
    color: #4ade80;
}


/* =============================================================================
   FULL SCREEN WIKIPEDIA / DOCUMENTATION CATALOG MODAL
   ============================================================================= */
.wiki-modal {
    padding: 0 !important;
}

.wiki-modal-content {
    max-width: 100vw !important;
    width: 100vw !important;
    height: 100vh !important;
    max-height: 100vh !important;
    border-radius: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    background: var(--color-surface-base) !important;
    border: none !important;
    box-shadow: none !important;
    transform: none !important;
}

.wiki-close-btn {
    top: 16px !important;
    right: 24px !important;
    z-index: 100 !important;
    background: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 50% !important;
    width: 40px !important;
    height: 40px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: #fff !important;
    font-size: 1.5rem !important;
    transition: all 0.2s ease !important;
}

.wiki-close-btn:hover {
    background: rgba(239, 68, 68, 0.8) !important;
    border-color: #ef4444 !important;
}

.wiki-layout-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

/* Left Sidebar */
.wiki-sidebar {
    width: 380px;
    min-width: 320px;
    max-width: 400px;
    background: var(--color-surface-raised);
    border-right: 1px solid var(--color-border-muted);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.wiki-sidebar-header {
    padding: 24px 20px 16px 20px;
    border-bottom: 1px solid var(--color-border-muted);
    background: rgba(0, 0, 0, 0.2);
}

.wiki-brand-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-tertiary);
    letter-spacing: 1px;
}

.wiki-sidebar-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-text-primary);
    margin-top: 4px;
    margin-bottom: 14px;
}

.wiki-search-box {
    width: 100%;
}

.wiki-search-input {
    width: 100%;
    background: var(--color-surface-strong);
    border: 1px solid var(--color-border-strong);
    color: var(--color-text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s ease;
}

.wiki-search-input:focus {
    border-color: var(--color-text-tertiary);
    box-shadow: 0 0 12px rgba(33, 192, 99, 0.25);
}

.wiki-article-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
}

.wiki-nav-item {
    display: flex;
    flex-direction: column;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
    border: 1px solid transparent;
}

.wiki-nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.wiki-nav-item.active {
    background: rgba(33, 192, 99, 0.14);
    border-color: rgba(33, 192, 99, 0.4);
}

.wiki-nav-item.active .wiki-nav-title {
    color: #4ade80;
    font-weight: 700;
}

.wiki-nav-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.76rem;
    color: var(--color-text-secondary);
    margin-bottom: 5px;
}

.wiki-nav-tag {
    color: var(--color-text-tertiary);
    font-weight: 600;
}

.wiki-nav-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.4;
}

/* Right Reader Frame */
.wiki-reader-frame {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    padding: 50px 60px 80px 60px;
    background: var(--color-surface-base);
}

.wiki-reader-content-wrapper {
    max-width: 860px;
    margin: 0 auto;
}

.wiki-reader-header {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border-muted);
}

.wiki-reader-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 100px;
    background: rgba(33, 192, 99, 0.15);
    color: #4ade80;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.wiki-reader-title {
    font-size: 2.1rem;
    font-weight: 900;
    color: var(--color-text-primary);
    line-height: 1.3;
    margin-bottom: 12px;
}

.wiki-reader-meta {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}

.wiki-reader-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

.wiki-reader-body h3 {
    font-size: 1.35rem;
    font-weight: 800;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--color-text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 8px;
}

.wiki-reader-body p {
    margin-bottom: 18px;
    color: var(--color-text-secondary);
}

.wiki-reader-body ul, .wiki-reader-body ol {
    margin-bottom: 20px;
    padding-left: 26px;
    color: var(--color-text-secondary);
}

.wiki-reader-body li {
    margin-bottom: 10px;
}

.wiki-reader-body code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    color: #facc15;
}

@media (max-width: 860px) {
    .wiki-layout-container {
        flex-direction: column;
    }
    .wiki-sidebar {
        width: 100%;
        max-width: 100%;
        height: 280px;
    }
    .wiki-reader-frame {
        padding: 30px 24px 60px 24px;
    }
}