/* ==========================================================================
   CSS VARIABLE DEFINITIONS (DARK & LIGHT THEMES)
   ========================================================================== */
:root {
    --bg-deep: #03030c;
    --bg-card: rgba(12, 12, 28, 0.65);
    --bg-card-hover: rgba(22, 22, 48, 0.85);
    --border-glass: rgba(0, 240, 255, 0.2);
    --border-glass-glow: rgba(0, 240, 255, 0.6);
    
    --accent-cyan: #00f0ff;
    --accent-purple: #9d4edd;
    --accent-magenta: #ff007f;
    --accent-blue: #3a86ff;
    
    --text-main: #f0f4f8;
    --text-muted: #a0aec0;
    --text-dim: #64748b;
    
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    
    --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.3);
    --shadow-purple: 0 0 20px rgba(157, 78, 221, 0.3);
    --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg-deep: #f0f4f9;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.98);
    --border-glass: rgba(107, 33, 168, 0.25);
    --border-glass-glow: rgba(107, 33, 168, 0.7);
    
    --accent-cyan: #0284c7;
    --accent-purple: #7e22ce;
    --accent-magenta: #be185d;
    --accent-blue: #2563eb;
    
    --text-main: #0f172a;
    --text-muted: #334155;
    --text-dim: #64748b;
    
    --shadow-neon: 0 4px 20px rgba(2, 132, 199, 0.2);
    --shadow-purple: 0 4px 20px rgba(126, 34, 206, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-body);
    font-weight: 500;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
    min-height: 100vh;
}

/* Canvas Background */
#gargantua-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

/* Custom Cursor */
#custom-cursor, #cursor-dot {
    pointer-events: none;
    position: fixed;
    border-radius: 50%;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease, background 0.2s ease;
}

#custom-cursor {
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
}

#cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-cyan);
}

/* ==========================================================================
   LOADING SCREEN
   ========================================================================== */
#loader-screen {
    position: fixed;
    inset: 0;
    background: #03030c;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loader-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.loader-portal {
    position: relative;
    width: 90px;
    height: 90px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portal-ring {
    position: absolute;
    inset: 0;
    border: 3px solid transparent;
    border-top-color: var(--accent-cyan);
    border-bottom-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 1.2s linear infinite;
}

.portal-core {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-cyan);
    text-shadow: 0 0 15px var(--accent-cyan);
}

.loader-title {
    font-family: var(--font-heading);
    letter-spacing: 4px;
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 8px;
}

.loader-status {
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.loader-bar-bg {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
    border: 1px solid var(--border-glass);
}

.loader-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
    transition: width 0.2s ease;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.loader-percent {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   HEADER & NAVIGATION HUD
   ========================================================================== */
.hud-header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    max-width: 1280px;
    height: 65px;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    transition: all var(--transition-smooth);
}

.hud-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--text-main);
}

.brand-sub {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--accent-cyan);
    letter-spacing: 1px;
}

.hud-nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 8px 14px;
    border-radius: 8px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.1);
    box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.15);
    text-shadow: 0 0 8px var(--accent-cyan);
}

/* HUD Button Utility */
.hud-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.hud-btn:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
    color: #fff;
}

.hud-btn.primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border: none;
}

.hud-btn.glow {
    background: transparent;
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.hud-btn.full-width {
    width: 100%;
}

/* ==========================================================================
   LAYOUT & SECTIONS
   ========================================================================== */
#app-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 110px 24px 60px;
}

.section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 40px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title i {
    color: var(--accent-cyan);
}

.section-line {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), transparent);
    margin-top: 10px;
    border-radius: 2px;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-container {
    max-width: 800px;
}

.avatar-hologram-wrapper {
    position: relative;
    width: 180px;
    height: 180px;
    margin: 0 auto 30px;
}

.avatar-frame {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 25px var(--accent-cyan), inset 0 0 15px var(--accent-cyan);
}

.avatar-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.avatar-frame:hover img {
    transform: scale(1.08);
}

.orbit-ring {
    position: absolute;
    inset: -12px;
    border: 1px dashed var(--accent-purple);
    border-radius: 50%;
    animation: spin 15s linear infinite;
}

.orbit-ring.ring-2 {
    inset: -24px;
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-left-color: transparent;
    animation: spin-reverse 20s linear infinite;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid var(--border-glass);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-cyan);
    animation: pulse 1.8s infinite;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 900;
    letter-spacing: 3px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.hero-alias {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--accent-purple);
    letter-spacing: 6px;
    margin-bottom: 15px;
    font-weight: 700;
}

.hero-tagline {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--accent-cyan);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.hero-bio {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 35px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   FUTURISTIC CARDS (GLASSMORPHISM)
   ========================================================================== */
.futuristic-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 28px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.futuristic-card:hover {
    border-color: var(--border-glass-glow);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-neon);
}

/* Identity Card */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.id-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-glass);
}

.hud-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cyan);
}

.status-indicator {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #10b981;
}

.id-fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.id-field {
    display: flex;
    flex-direction: column;
}

.field-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.field-value {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
}

.field-value.highlight {
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

.field-value.accent {
    color: var(--accent-purple);
}

.card-footer-hud {
    margin-top: 24px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* Timeline */
.card-subtitle {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 10px;
}

.timeline-nodes {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.time-node {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.node-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.node-content h4 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: #fff;
}

.node-content p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==========================================================================
   SOCIAL HUB & PROJECTS GRID
   ========================================================================== */
.social-grid, .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 20px;
    text-decoration: none;
    color: var(--text-main);
}

.social-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
    transition: all var(--transition-fast);
}

.social-card:hover .social-icon {
    background: var(--accent-cyan);
    color: #000;
    box-shadow: 0 0 15px var(--accent-cyan);
}

.social-info h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 2px;
}

.social-info p {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.project-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.project-tag {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background: rgba(157, 78, 221, 0.15);
    border: 1px solid var(--accent-purple);
    color: var(--accent-purple);
    padding: 3px 10px;
    border-radius: 6px;
    margin-bottom: 15px;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #fff;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* ==========================================================================
   TOOLS CENTER STYLES
   ========================================================================== */
.tools-control-bar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-cyan);
}

.search-box input {
    width: 100%;
    padding: 14px 16px 14px 45px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    color: #fff;
    font-family: var(--font-mono);
    outline: none;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-neon);
}

.tool-categories {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.1);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.tool-card {
    display: flex;
    flex-direction: column;
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.tool-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-title i {
    color: var(--accent-cyan);
}

.tool-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.tool-input, .tool-select, .tool-textarea {
    width: 100%;
    padding: 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
}

.tool-textarea {
    resize: vertical;
    min-height: 80px;
}

.tool-output {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-cyan);
    word-break: break-all;
    min-height: 40px;
}

/* ==========================================================================
   DIGITAL LAB & CONTACT
   ========================================================================== */
.lab-card {
    text-align: center;
    padding: 40px;
}

.lab-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-magenta);
    background: rgba(255, 0, 127, 0.1);
    border: 1px solid var(--accent-magenta);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 15px;
}

.lab-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.lab-card p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 30px;
}

.lab-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-num {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-cyan);
}

.stat-desc {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.channel-link {
    color: var(--text-main);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    transition: background var(--transition-fast);
}

.channel-link:hover {
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-cyan);
}

.form-notice {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-purple);
    background: rgba(157, 78, 221, 0.1);
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-mono);
    outline: none;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-cyan);
}

/* ==========================================================================
   FOOTER & TOAST
   ========================================================================== */
.hud-footer {
    border-top: 1px solid var(--border-glass);
    padding: 30px 24px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 40px;
}

.footer-sub {
    font-size: 0.7rem;
    margin-top: 6px;
}

#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--accent-cyan);
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    box-shadow: var(--shadow-neon);
    animation: slideInRight 0.3s ease, fadeOut 0.5s ease 2.5s forwards;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.error {
    border-color: var(--accent-magenta);
    box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
}