/* ==========================================================================
   DEV KUMAR RAY - CYBERSECURITY & AI DEVELOPER PORTFOLIO
   Design System & Master Stylesheet (style.css)
   ========================================================================== */

/* --- Fonts & External Icons ---
   Loaded via <link> tags in HTML <head> to avoid duplicate requests */

/* ==========================================================================
   CSS VARIABLES & DESIGN TOKENS
   ========================================================================== */
:root {
    /* ----------------------------------------------------------------------
       Dark Theme (Default - High-tech Cyber / Terminal Palette)
       ---------------------------------------------------------------------- */
    --bg-main: #07090e;
    --bg-surface: #0e121b;
    --bg-surface-elevated: #141926;
    --bg-surface-hover: #1a2233;
    --bg-glass: rgba(14, 18, 27, 0.85);
    
    --primary: #00e5a3;
    --primary-rgb: 0, 229, 163;
    --primary-hover: #00c78d;
    --primary-glow: rgba(0, 229, 163, 0.22);

    --accent: #38bdf8;
    --accent-rgb: 56, 189, 248;
    --accent-hover: #0284c7;

    --text-bright: #ffffff;
    --text-main: #e2e8f0;
    --text-muted: #8b9bb4;
    --text-faint: #475569;

    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 229, 163, 0.45);
    --border-accent: rgba(56, 189, 248, 0.35);

    --terminal-bg: #0b0f17;
    --terminal-border: rgba(0, 229, 163, 0.22);
    --terminal-text: #f1f5f9;
    --terminal-header-bg: rgba(0, 0, 0, 0.45);

    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Sizing & Spacing */
    --container-width: 1220px;
    --header-height: 74px;
    --space-section: 90px;

    /* Radii */
    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 9999px;

    /* Shadows & Glows */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.65);
    --glow-card: 0 0 35px rgba(0, 229, 163, 0.08);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

    /* Z-Index */
    --z-particles: -5;
    --z-base: 1;
    --z-header: 1000;
    --z-modal: 2000;
    --z-toast: 3000;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
    font-size: 16px;
    height: 100%;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    min-height: 100%;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Background Noise / Grid Overlay */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(circle at 15% 15%, rgba(var(--primary-rgb), 0.04) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(var(--accent-rgb), 0.04) 0%, transparent 45%),
        linear-gradient(to right, var(--border) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
    opacity: 0.6;
    pointer-events: none;
    z-index: var(--z-particles);
}

#particles-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: var(--z-particles);
    pointer-events: none;
    opacity: 0.75;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 9px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-surface-elevated);
    border: 2px solid var(--bg-main);
    border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

::selection {
    background: rgba(var(--primary-rgb), 0.3);
    color: var(--text-bright);
}

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    padding: 12px 24px;
    background: var(--primary);
    color: #05140f;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    z-index: calc(var(--z-header) + 10);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 12px;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-bright);
    line-height: 1.25;
    letter-spacing: -0.02em;
    font-weight: 700;
}

p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

code, kbd, samp, pre {
    font-family: var(--font-mono);
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

.text-primary {
    color: var(--primary) !important;
}

.font-mono {
    font-family: var(--font-mono);
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: clamp(20px, 4vw, var(--space-section)) 0;
    position: relative;
    z-index: var(--z-base);
}

.section-alt {
    background: rgba(var(--primary-rgb), 0.015);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

/* Journey / Academic Timeline - remove unwanted primary-color tint so the
   section blends with the normal dark page background and grid texture. */
#journey {
    background: none;
    border-top: none;
    border-bottom: none;
}

.section-header {
    margin-bottom: 50px;
}

/* Section Eyebrow (No Numbered Prefixes) */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.eyebrow::before {
    content: "›";
    font-size: 1.1rem;
    line-height: 1;
    color: var(--primary);
    font-weight: 700;
}

.section-title {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 650px;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn-group {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 26px;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary);
    color: #05140f;
    box-shadow: 0 4px 20px var(--primary-glow);
    font-weight: 700;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px var(--primary-glow);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-bright);
    border-color: var(--border);
}

.btn-secondary:hover {
    background: var(--bg-surface-elevated);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 9px 18px;
    font-size: 0.85rem;
    border-radius: var(--radius-xs);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* Status Indicator Dot */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    display: inline-block;
    position: relative;
}

.status-dot::after {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: #10b981;
    opacity: 0.4;
    animation: statusPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Cards */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all var(--transition-normal);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.card:hover {
    border-color: var(--border-hover);
    background: var(--bg-surface-elevated);
    box-shadow: var(--shadow-md), var(--glow-card);
    transform: translateY(-4px);
}

/* ==========================================================================
   GLOBAL HEADER & NAVIGATION
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: var(--z-header);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    align-items: center;
}

.header.scrolled {
    background: var(--bg-surface);
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--border-hover);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 20px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    position: relative;
    padding: 6px 0;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-bright);
}

.nav-links a.active::after,
.nav-links a:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle (hidden on desktop, visible on mobile only) */
.mobile-menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-bright);
    font-size: 1.15rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 50px;
    align-items: center;
}

.hero-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--primary);
    margin-bottom: 24px;
    margin-top: 12px;
    font-weight: 600;
}

.hero-greeting {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-greeting::before {
    content: ">";
    color: var(--primary);
}

.hero-title {
    font-size: clamp(3rem, 7vw, 5.2rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 16px;
    letter-spacing: -0.04em;
}

.hero-typing {
    font-family: var(--font-mono);
    font-size: clamp(1.15rem, 2.5vw, 1.7rem);
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 22px;
    min-height: 2.2em;
    display: flex;
    align-items: center;
}

.hero-description {
    font-size: 1.12rem;
    max-width: 580px;
    margin-bottom: 34px;
    line-height: 1.75;
}

.hero-cta {
    margin-bottom: 38px;
}

.hero-socials {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all var(--transition-normal);
}

.social-icon:hover {
    background: var(--primary);
    color: #05140f;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

/* Terminal Card in Hero */
.hero-visual-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-terminal-card {
    width: 100%;
    max-width: 440px;
    background: var(--terminal-bg);
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(var(--primary-rgb), 0.12);
    overflow: hidden;
    font-family: var(--font-mono);
}

.terminal-header {
    background: var(--terminal-header-bg);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-title {
    margin-left: 8px;
    font-size: 0.8rem;
    color: #94a3b8;
}

.terminal-body {
    padding: 24px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--terminal-text);
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    color: var(--terminal-text);
}

.terminal-line:first-child {
    margin-top: 0;
}

.terminal-prompt {
    color: #00e5a3;
    font-weight: 700;
}

.terminal-cmd {
    color: #f1f5f9;
}

.terminal-output {
    color: #94a3b8;
    padding-left: 18px;
    font-size: 0.86rem;
}

/* ==========================================================================
   ABOUT & JOURNEY SECTIONS
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: start;
}

.about-info-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-info-card {
    padding: 22px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.about-info-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.about-info-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.about-info-value {
    color: var(--text-bright);
    font-weight: 600;
    font-size: 1.05rem;
    margin: 0;
}

/* Timeline */
.timeline {
    max-width: 820px;
    margin: 0 auto;
    position: relative;
    padding-left: 35px;
    border-left: 2px solid var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -42px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-main);
    border: 2px solid var(--border);
    transition: all var(--transition-normal);
}

.timeline-dot-active {
    border-color: var(--primary);
    background: var(--primary);
}

.timeline-dot-future {
    border-color: var(--text-faint);
    background: var(--bg-surface);
}

.timeline-card {
    padding: 28px 32px;
}

.timeline-card-active {
    background: var(--bg-surface-elevated);
}

.timeline-card-future {
    opacity: 0.85;
}

.timeline-date {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.timeline-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.timeline-desc {
    margin: 0;
    font-size: 0.96rem;
}

/* Interests Grid */
.interests-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.interest-pill {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-bright);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.interest-pill i {
    color: var(--primary);
    font-size: 1.1rem;
}

.interest-pill:hover {
    border-color: var(--primary);
    background: var(--bg-surface-elevated);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

/* ==========================================================================
   SKILLS & CREDENTIALS SECTION
   ========================================================================== */
.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.skill-category-title {
    font-size: 1.35rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-bright);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.skill-category-title i {
    color: var(--primary);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 24px;
}

.skill-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 28px;
}

.skill-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.skill-icon {
    font-size: 1.8rem;
    color: var(--primary);
}

.skill-card h3,
.skill-card h4 {
    font-size: 1.2rem;
    margin: 0;
}

.skill-card p {
    flex-grow: 1;
    font-size: 0.94rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Certificates Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.cert-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
    overflow: hidden;
}

.cert-preview-img-container {
    width: 100%;
    height: 220px;
    background: var(--bg-surface-elevated);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.cert-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    filter: brightness(0.9);
    transition: transform var(--transition-smooth), filter var(--transition-normal);
}

.cert-card:hover .cert-preview-img {
    transform: scale(1.04);
    filter: brightness(1);
}

.cert-issuer-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 5px 12px;
    background: rgba(7, 9, 14, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--primary);
    font-weight: 600;
}

.cert-content {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.cert-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.cert-issuer {
    font-family: var(--font-mono);
    font-size: 0.84rem;
    color: var(--primary);
    margin-bottom: 18px;
    font-weight: 600;
}

.cert-meta-list {
    flex-grow: 1;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 0.9rem;
}

.cert-meta-item {
    display: flex;
    gap: 8px;
    color: var(--text-muted);
}

.cert-meta-item strong {
    color: var(--text-bright);
    min-width: 90px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    text-transform: uppercase;
}

.cert-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: auto;
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 30px;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 32px;
    position: relative;
    border-radius: var(--radius-md);
}

.project-card-featured {
    border-color: rgba(var(--primary-rgb), 0.25);
}

.project-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}

.project-icon-box {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.project-category-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--text-bright);
}

.project-description {
    flex-grow: 1;
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.65;
}

.project-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 26px;
}

.project-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.project-link {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-bright);
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--primary);
}

/* Gallery & Lightbox Overlay */
.gallery-overlay, .lightbox-overlay {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(7, 9, 14, 0.96);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

[data-theme='dark'] .gallery-overlay {
    background: rgba(7, 9, 14, 0.96);
}

.gallery-overlay.active, .lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    border-bottom: 1px solid var(--border);
    background: var(--bg-surface);
}

.gallery-header h2,
.gallery-header h3 {
    font-size: 1.25rem;
    color: var(--text-bright);
}

.gallery-close {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.05rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color var(--transition-fast);
    font-family: var(--font-mono);
}

.gallery-close:hover {
    color: var(--primary);
}

.gallery-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 40px 5%;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 22px;
    max-width: 1240px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.gallery-item img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.gallery-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px var(--primary-glow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item-badge {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border-radius: var(--radius-xs);
}

/* Lightbox (Always High-Contrast Dark for Media Viewing) */
.lightbox-overlay {
    background: rgba(0, 0, 0, 0.94);
    justify-content: center;
    align-items: center;
    z-index: calc(var(--z-modal) + 10);
    padding: 20px;
}

.lightbox-overlay img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: opacity 0.2s ease;
}

.lightbox-btn {
    position: absolute;
    background: rgba(20, 25, 38, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
    border-radius: 50%;
    z-index: calc(var(--z-modal) + 20);
}

.lightbox-close-btn {
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    font-size: 1.3rem;
}

.lightbox-prev, .lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

.lightbox-btn:hover {
    background: var(--primary);
    color: #05140f;
    border-color: var(--primary);
    transform: translateY(-50%) scale(1.08);
}

.lightbox-close-btn:hover {
    transform: scale(1.08);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 50px;
    align-items: start;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-card-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.contact-card-item:hover {
    border-color: var(--primary);
    background: var(--bg-surface-elevated);
    transform: translateY(-3px);
    box-shadow: 0 6px 24px var(--primary-glow);
}

.contact-item-left {
    display: contents;
}

.contact-item-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-sm);
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    grid-column: 1;
    grid-row: 1;
}

.contact-item-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-item-value {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-bright);
    min-width: 0;
    word-break: break-all;
    overflow-wrap: break-word;
    grid-column: 2;
    grid-row: 1;
    align-self: center;
}

.contact-item-action {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-size: 0.95rem;
    grid-column: 3;
    grid-row: 1;
}

.contact-action-btn {
    padding: 8px 12px;
    background: rgba(var(--primary-rgb), 0.12);
    border-radius: var(--radius-xs);
    border: 1px solid rgba(var(--primary-rgb), 0.25);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.contact-action-btn:hover {
    background: var(--primary);
    color: #05140f;
}

/* Toast Notification */
.toast-notice {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--primary);
    color: var(--text-bright);
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-md), 0 0 20px var(--primary-glow);
    z-index: var(--z-toast);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.toast-notice.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ==========================================================================
   404 ERROR PAGE
   ========================================================================== */
.error-page-wrapper {
    min-height: calc(100vh - var(--header-height) - 180px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error-code-badge {
    font-family: var(--font-mono);
    font-size: clamp(4.5rem, 14vw, 8.5rem);
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -0.05em;
    text-shadow: 0 0 40px var(--primary-glow);
}

.error-terminal {
    max-width: 540px;
    margin: 28px auto 36px;
    background: var(--terminal-bg);
    border: 1px solid var(--terminal-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    color: var(--terminal-text);
}

/* ==========================================================================
   GLOBAL FOOTER
   ========================================================================== */
.footer {
    padding: 40px 0 32px;
    border-top: 1px solid var(--border);
    background: var(--bg-surface);
    position: relative;
    z-index: var(--z-base);
    text-align: center;
}

.footer-brand {
    margin-bottom: 24px;
}

.footer-name {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 6px;
}

.footer-roles {
    font-family: var(--font-mono);
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.footer-nav a {
    font-family: var(--font-heading);
    color: var(--text-muted);
    font-size: 0.94rem;
    font-weight: 500;
}

.footer-nav a:hover {
    color: var(--primary);
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-bottom: 28px;
}

.footer-socials a {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1.15rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.footer-socials a:hover {
    background: var(--primary);
    color: #05140f;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.footer-bottom {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: #94a3b8;
}

/* ==========================================================================
   BACK TO TOP BUTTON
   ========================================================================== */
#back-to-top {
    position: fixed;
    right: 28px;
    bottom: 28px;
    width: 48px;
    height: 48px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border);
    color: var(--text-bright);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.15rem;
    cursor: pointer;
    z-index: calc(var(--z-header) - 1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #05140f;
    transform: translateY(-4px);
    box-shadow: 0 6px 20px var(--primary-glow);
}