/* ==========================================================
   ESHAN JAIN PORTFOLIO — STYLE.CSS (v2.0)
   Dark terminal aesthetic + ML/quant accents
   ========================================================== */

/* --- 1. FONTS & VARIABLES --- */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400..900&family=JetBrains+Mono:wght@300;400;600;700&display=swap');

:root {
    --bg-color: #050505;
    --card-bg: rgba(20, 20, 30, 0.85);
    --primary-neon: #00f3ff;
    --secondary-neon: #bc13fe;
    --neon-green: #7CFFB2;
    --neon-gold: #D4AF37;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --font-main: "Orbitron", sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", "Courier New", monospace;
    --border-subtle: rgba(0, 243, 255, 0.15);
    --radius: 8px;
}

/* --- 2. RESET & BASE --- */
*, *::before, *::after {
    margin: 0; padding: 0;
    box-sizing: border-box;
    cursor: none;
}
a, button, .btn, .side-dot, input, textarea, select, label[for] {
    cursor: pointer;
}
body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Skip to content for a11y */
.skip-link {
    position: absolute; left: -9999px;
    background: var(--primary-neon); color: #000;
    padding: 6px 14px; font-size: 0.85rem; z-index: 999999;
}
.skip-link:focus { left: 10px; top: 10px; }

/* Mobile: hide custom cursor */
@media (hover: none) {
    #trail-canvas { display: none !important; }
    .cursor-dot  { display: none !important; }
    * { cursor: auto; }
}

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    #trail-canvas { display: none !important; }
    .cursor-dot   { display: none !important; }
    .orb-system   { animation: none !important; }
}

/* --- 3. CANVAS & CURSOR --- */
#trail-canvas {
    position: fixed; inset: 0;
    pointer-events: none;
    z-index: 9990;
}
.cursor-dot {
    position: fixed; top: 0; left: 0;
    width: 32px; height: 32px;
    background-color: #fff;
    clip-path: polygon(50% 0%, 63% 38%, 100% 50%, 63% 62%, 50% 100%, 37% 62%, 0% 50%, 37% 38%);
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 14px rgba(255,255,255,0.85);
    transition: opacity 0.3s ease, transform 0.1s ease;
}
.cursor-dot.arch-hover {
    background: var(--primary-neon);
    clip-path: polygon(50% 0%, 100% 100%, 50% 75%, 0% 100%); /* arch-like triangle */
    box-shadow: 0 0 18px var(--primary-neon);
}

/* --- 4. GALAXY BACKGROUND --- */
.galaxy-bg {
    position: fixed; inset: 0; z-index: -1;
    background-color: var(--bg-color);
    display: flex; justify-content: center; align-items: center;
    overflow: hidden;
}
.orb-system {
    width: 70vw; height: 70vw; position: relative;
    animation: spin-galaxy 22s linear infinite;
    will-change: transform; transform: translateZ(0);
}
.orb {
    position: absolute; width: 555px; height: 555px; border-radius: 50%;
    filter: blur(100px); opacity: 0.12;
}
.orb-1 { background: var(--primary-neon); top: -100px; left: 10%; }
.orb-2 { background: var(--secondary-neon); bottom: -100px; right: 10%; }
.orb-3 { background: var(--neon-green); top: 40%; left: 50%; width: 300px; height: 300px; opacity: 0.07; }
@keyframes spin-galaxy {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* --- 5. NAVIGATION --- */
#main-nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 30px;
    background: rgba(5,5,5,0.92); backdrop-filter: blur(12px);
    position: fixed; width: 100%; z-index: 9995;
    border-bottom: 1px solid var(--border-subtle);
    transition: top 0.4s ease; top: 0;
    gap: 16px;
}
#main-nav.nav-hidden { top: -80px; }

.nav-left { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }

/* Arch Badge */
.arch-badge {
    display: flex; align-items: center; gap: 0;
    position: relative; text-decoration: none;
    border-radius: 6px; padding: 3px;
    transition: filter 0.3s;
    animation: arch-pulse 2.5s ease 1.5s 1;
}
.arch-badge img {
    width: 28px; height: 28px; display: block;
    filter: drop-shadow(0 0 4px rgba(0,243,255,0.4));
    transition: filter 0.3s, transform 0.3s;
}
.arch-badge:hover img  { filter: drop-shadow(0 0 10px var(--primary-neon)); transform: scale(1.12); }
.arch-badge:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 3px; }
.arch-tooltip {
    display: none; position: absolute; left: calc(100% + 10px); top: 50%;
    transform: translateY(-50%);
    background: rgba(10,10,20,0.95); border: 1px solid var(--primary-neon);
    color: var(--primary-neon); font-family: var(--font-mono);
    font-size: 0.7rem; padding: 4px 10px; white-space: nowrap;
    border-radius: 4px; z-index: 100; pointer-events: none;
}
.arch-badge:hover .arch-tooltip,
.arch-badge:focus .arch-tooltip { display: block; }
@keyframes arch-pulse {
    0%   { filter: drop-shadow(0 0 0 transparent); }
    50%  { filter: drop-shadow(0 0 12px var(--primary-neon)); }
    100% { filter: drop-shadow(0 0 0 transparent); }
}

.nav-socials a {
    color: var(--text-main); font-size: 1.3rem; margin-right: 16px;
    transition: color 0.25s, transform 0.25s; text-decoration: none;
}
.nav-socials a:hover { color: var(--primary-neon); transform: scale(1.15); }
.nav-socials a:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 3px; border-radius: 3px; }

.nav-links { display: flex; align-items: center; gap: 0; }
.nav-links a {
    color: var(--text-main); text-decoration: none;
    font-size: 0.72rem; font-weight: 600; letter-spacing: 1px;
    text-transform: uppercase; padding: 0 13px; position: relative;
    transition: color 0.25s;
}
.nav-links a:hover { color: var(--primary-neon); text-shadow: 0 0 10px var(--primary-neon); }
.nav-links a:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 2px; }
.nav-num { color: var(--primary-neon); margin-right: 4px; }
.nav-links a:not(:last-child)::after {
    content: '|'; position: absolute; right: 0;
    color: rgba(255,255,255,0.2); font-weight: 100; font-size: 0.65rem;
}

/* Quant Chips */
.quant-chips {
    display: flex; gap: 8px; align-items: center; flex-shrink: 0;
}
.quant-chip {
    display: flex; align-items: center; gap: 5px;
    background: rgba(10,10,20,0.9); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px; padding: 4px 10px;
    font-family: var(--font-mono); font-size: 0.68rem;
    color: var(--text-muted); cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}
.quant-chip:hover { border-color: var(--primary-neon); box-shadow: 0 0 8px rgba(0,243,255,0.25); }
.quant-chip:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 2px; }
.chip-label { color: #555; font-size: 0.62rem; letter-spacing: 0.5px; }
.chip-value { font-weight: 700; font-size: 0.72rem; }
.chip-green  { color: var(--neon-green); text-shadow: 0 0 6px rgba(124,255,178,0.4); }
.chip-gold   { color: var(--neon-gold);  text-shadow: 0 0 6px rgba(212,175,55,0.4); }
.chip-cyan   { color: var(--primary-neon); text-shadow: 0 0 6px rgba(0,243,255,0.4); }
.chip-sparkline {
    width: 40px; height: 14px; opacity: 0.7;
}
@media (max-width: 1200px) { .quant-chips { display: none; } }
@media (max-width: 900px)  { .nav-links { display: none; } }

/* --- CHIP MODAL --- */
.chip-modal {
    position: fixed; inset: 0; z-index: 99998;
    background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
    display: flex; justify-content: center; align-items: center;
}
.chip-modal[hidden] { display: none; }
.chip-modal-content {
    background: rgba(12,12,22,0.98); border: 1px solid var(--primary-neon);
    border-radius: 12px; padding: 36px; max-width: 420px; width: 90%;
    position: relative; box-shadow: 0 0 40px rgba(0,243,255,0.2);
    animation: modal-in 0.25s ease;
}
@keyframes modal-in {
    from { opacity: 0; transform: scale(0.92); }
    to   { opacity: 1; transform: scale(1); }
}
.modal-close {
    position: absolute; top: 14px; right: 16px;
    background: transparent; border: none; color: var(--text-muted);
    font-size: 1.1rem; cursor: pointer; transition: color 0.2s;
}
.modal-close:hover { color: var(--primary-neon); }
.modal-close:focus-visible { outline: 2px solid var(--primary-neon); }
.modal-title {
    font-family: var(--font-main); font-size: 1rem;
    color: var(--primary-neon); margin-bottom: 18px; letter-spacing: 1px;
}
.modal-body { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-muted); line-height: 1.8; }
.modal-body strong { color: var(--text-main); }
.modal-metric-row { display: flex; justify-content: space-between; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); }

/* --- 6. TERMINAL LOADER --- */
#terminal-loader {
    position: fixed; inset: 0;
    background-color: #080808; z-index: 999999;
    padding: 30px 40px;
    display: flex; flex-direction: column; align-items: flex-start;
    cursor: default !important; overflow: hidden;
}
.terminal-header {
    display: flex; justify-content: space-between; align-items: center;
    width: 100%; margin-bottom: 16px;
    border-bottom: 1px solid #222; padding-bottom: 10px; flex-shrink: 0;
}
.terminal-title {
    color: #444; font-family: var(--font-mono); font-size: 0.85rem;
}
#skip-btn {
    background: transparent; border: 1px solid var(--primary-neon);
    color: var(--primary-neon); padding: 4px 14px;
    font-family: var(--font-mono); font-size: 0.78rem; font-weight: 700;
    text-transform: uppercase; cursor: pointer !important; transition: 0.25s;
    letter-spacing: 1px;
}
#skip-btn:hover { background: var(--primary-neon); color: #000; }
#skip-btn:focus-visible { outline: 2px solid var(--neon-green); outline-offset: 2px; }

/* Matrix canvas behind terminal text */
#matrix-canvas {
    position: absolute; inset: 0;
    pointer-events: none; opacity: 0;
    transition: opacity 0.5s;
    z-index: 0;
}
#matrix-canvas.active { opacity: 0.15; }

.terminal-body {
    position: relative; z-index: 1;
    width: 100%; color: #0f0; font-size: 1.2rem; line-height: 1.7;
    font-family: var(--font-mono); font-weight: 500;
    white-space: pre-wrap;
    text-shadow: 0 0 3px rgba(0,255,0,0.35);
    flex: 1; overflow: hidden;
}
.term-user  { color: #00f3ff; font-weight: 700; }
.term-path  { color: #bc13fe; font-weight: 600; }
.term-cmd   { color: #fff; font-weight: 400; }
.term-error { color: #ff5555; font-weight: 700; }
.term-muted { color: #555; }
.term-ok    { color: var(--neon-green); font-weight: 600; }
.term-gold  { color: var(--neon-gold); }

/* ASCII Art */
.term-ascii {
    color: #00f3ff; font-size: 0.78rem; line-height: 1.2;
    font-family: var(--font-mono); margin-bottom: 10px;
    display: block; white-space: pre;
    text-shadow: 0 0 8px rgba(0,243,255,0.5);
}

/* Progress bar */
.term-progress-wrap {
    position: relative; z-index: 2;
    width: 100%; max-width: 500px;
    display: flex; align-items: center; gap: 12px;
    margin-top: 14px; flex-shrink: 0;
    opacity: 0; transition: opacity 0.3s;
}
.term-progress-wrap.visible { opacity: 1; }
.term-progress-bar {
    flex: 1; height: 4px;
    background: #111; border: 1px solid #333; border-radius: 2px;
    position: relative; overflow: hidden;
}
.term-progress-bar::after {
    content: ''; position: absolute; left: 0; top: 0; height: 100%;
    width: var(--progress, 0%);
    background: linear-gradient(90deg, var(--neon-green), var(--primary-neon));
    box-shadow: 0 0 8px var(--primary-neon);
    transition: width 0.3s ease;
}
.term-progress-label {
    color: var(--neon-green); font-family: var(--font-mono);
    font-size: 0.78rem; min-width: 36px; text-align: right;
}

/* --- 7. HERO SECTION --- */
.hero {
    min-height: 100vh; width: 100%;
    display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
    padding: 100px 10% 60px;
    position: relative; text-align: left;
}
.hero-prompt-label {
    font-family: var(--font-mono); font-size: 0.85rem;
    color: var(--text-muted); margin-bottom: 12px; display: block;
}
.hero-intro-cmd { color: var(--text-main); }
.hero-name {
    font-size: 5rem; font-weight: 700; margin-bottom: 12px; color: #fff;
    text-shadow: 0 0 22px rgba(0,243,255,0.5); line-height: 1.1;
}
.hero-typewriter-container {
    font-size: 2.8rem; font-weight: 500; color: var(--primary-neon);
    margin-bottom: 22px; font-family: var(--font-mono);
    height: 55px; display: flex; align-items: center;
}
.hero-tw-prefix { color: #555; margin-right: 4px; }
.hero-cursor { color: #fff; margin-left: 4px; animation: blink-hero 0.8s step-end infinite; }
@keyframes blink-hero { 50% { opacity: 0; } }
.hero-static-sub {
    font-size: 1.05rem; color: var(--text-muted);
    max-width: 540px; margin-bottom: 36px; line-height: 1.7;
    font-family: var(--font-mono);
}

/* Hero Interactive Terminal */
.hero-terminal {
    width: 100%; max-width: 560px;
    background: rgba(8,8,15,0.92); border: 1px solid rgba(0,243,255,0.25);
    border-radius: 10px; overflow: hidden;
    margin-bottom: 36px;
    box-shadow: 0 0 30px rgba(0,243,255,0.08);
}
.hero-term-header {
    display: flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,0.04); padding: 8px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.term-dot.red    { background: #ff5f56; }
.term-dot.yellow { background: #ffbd2e; }
.term-dot.tgreen { background: #27c93f; }
.hero-term-title { font-family: var(--font-mono); font-size: 0.7rem; color: #444; margin-left: 6px; }
.hero-term-output {
    padding: 10px 16px; font-family: var(--font-mono); font-size: 0.82rem;
    line-height: 1.65; color: var(--text-muted); min-height: 40px; max-height: 160px;
    overflow-y: auto; white-space: pre-wrap;
}
.hero-term-input-row {
    display: flex; align-items: center; gap: 0;
    padding: 8px 16px; border-top: 1px solid rgba(255,255,255,0.05);
}
.hero-term-prompt { font-family: var(--font-mono); font-size: 0.82rem; white-space: nowrap; }
.hero-term-input {
    flex: 1; background: transparent; border: none; outline: none;
    color: #fff; font-family: var(--font-mono); font-size: 0.82rem;
    padding: 2px 8px; caret-color: var(--primary-neon);
}
.hero-term-input::placeholder { color: #333; }

/* Terminal output lines */
.tline { display: block; }
.tline-success { color: var(--neon-green); }
.tline-error   { color: #ff5555; }
.tline-info    { color: var(--primary-neon); }
.tline-warn    { color: var(--neon-gold); }

/* CTA Button */
.btn {
    padding: 13px 38px; background: transparent;
    color: var(--primary-neon); font-family: var(--font-main);
    font-weight: bold; text-decoration: none; text-transform: uppercase;
    letter-spacing: 2px; transition: all 0.3s; cursor: pointer;
    position: relative; border: none; display: inline-block;
    background-image:
        linear-gradient(to right, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to bottom, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to left, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to bottom, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to left, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to top, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to right, var(--primary-neon) 2px, transparent 2px),
        linear-gradient(to top, var(--primary-neon) 2px, transparent 2px);
    background-position: top left, top left, top right, top right, bottom right, bottom right, bottom left, bottom left;
    background-size: 14px 14px; background-repeat: no-repeat;
    font-size: 0.9rem;
}
.btn:hover { background-color: var(--primary-neon); background-image: none; color: #000; box-shadow: 0 0 25px var(--primary-neon); }
.btn:focus-visible { outline: 2px solid var(--neon-green); outline-offset: 4px; }

@media (max-width: 768px) {
    .hero { align-items: center; text-align: center; padding: 90px 6% 50px; }
    .hero-name { font-size: 3rem; }
    .hero-typewriter-container { font-size: 1.6rem; justify-content: center; height: auto; }
    .hero-terminal { max-width: 100%; }
    .hero-static-sub { font-size: 0.9rem; }
}

/* --- 8. SECTIONS --- */
.section {
    width: 100%; padding: 100px 10%;
    display: flex; flex-direction: column; justify-content: center;
}
.section-title {
    font-size: 1.9rem; margin-bottom: 50px;
    border-left: 4px solid var(--primary-neon);
    padding-left: 20px; color: var(--text-main);
}
section { position: relative; }
section::after {
    content: ''; position: absolute; bottom: 0; left: 90px; right: 90px; height: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(0,243,255,0.2) 30%, rgba(0,243,255,0.2) 70%, transparent 100%);
    pointer-events: none;
}

/* --- 9. ABOUT --- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: flex-start; }
.about-details { margin-bottom: 28px; border-left: 2px solid var(--primary-neon); padding-left: 18px; font-size: 0.93rem; font-family: var(--font-mono); }
.highlight { color: var(--primary-neon); font-weight: 700; }
.about-bio p { margin-bottom: 18px; color: var(--text-muted); font-size: 0.97rem; }
.about-quote { color: #ddd; font-style: italic; margin-top: 22px; border-left: 3px solid var(--secondary-neon); padding-left: 14px; font-family: var(--font-mono); font-size: 0.9rem; }
.skills-container { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.skill-tag {
    background: rgba(0,243,255,0.07); border: 1px solid rgba(0,243,255,0.35);
    color: var(--primary-neon); padding: 7px 14px; border-radius: 5px;
    font-size: 0.82rem; font-family: var(--font-mono);
    transition: background 0.2s, box-shadow 0.2s;
}
.skill-tag:hover { background: rgba(0,243,255,0.15); box-shadow: 0 0 10px rgba(0,243,255,0.2); }
.arch-skill-tag {
    border-color: rgba(0,243,255,0.6); background: rgba(0,243,255,0.12);
    display: inline-flex; align-items: center; gap: 6px;
}
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }

/* --- 10. PROJECTS --- */
.projects-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}
.project-card {
    background: var(--card-bg); border: 1px solid rgba(255,255,255,0.08);
    padding: 26px; border-radius: var(--radius);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    display: flex; flex-direction: column; gap: 14px;
}
.project-card:hover {
    transform: translateY(-8px); border-color: var(--primary-neon);
    box-shadow: 0 0 24px rgba(0,243,255,0.15);
}
.project-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.project-card h3 { color: var(--primary-neon); font-size: 1.05rem; }
.project-card p  { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* Project Badges */
.project-badges { display: flex; gap: 6px; flex-shrink: 0; flex-wrap: wrap; }
.badge {
    font-family: var(--font-mono); font-size: 0.62rem; font-weight: 600;
    padding: 2px 8px; border-radius: 20px; letter-spacing: 0.5px; white-space: nowrap;
}
.badge-green   { background: rgba(124,255,178,0.12); color: var(--neon-green); border: 1px solid rgba(124,255,178,0.3); }
.badge-cyan    { background: rgba(0,243,255,0.1);    color: var(--primary-neon); border: 1px solid rgba(0,243,255,0.3); }
.badge-gold    { background: rgba(212,175,55,0.1);   color: var(--neon-gold);   border: 1px solid rgba(212,175,55,0.3); }
.badge-magenta { background: rgba(188,19,254,0.1);   color: var(--secondary-neon); border: 1px solid rgba(188,19,254,0.3); }

/* Project Metrics Row */
.project-metrics {
    display: flex; gap: 16px; font-family: var(--font-mono);
    font-size: 0.75rem; padding: 8px 12px;
    background: rgba(255,255,255,0.03); border-radius: 5px;
    border: 1px solid rgba(255,255,255,0.06);
}
.metric { display: flex; flex-direction: column; gap: 2px; }
.metric-label { color: #555; font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.5px; }
.metric-val { font-weight: 700; }

/* Project Tabs */
.project-tabs {
    display: flex; gap: 0; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.proj-tab {
    background: transparent; border: none; border-bottom: 2px solid transparent;
    color: var(--text-muted); font-family: var(--font-mono); font-size: 0.75rem;
    padding: 6px 12px; cursor: pointer; transition: color 0.2s, border-color 0.2s;
    margin-bottom: -1px;
}
.proj-tab:hover { color: var(--primary-neon); }
.proj-tab.active { color: var(--primary-neon); border-bottom-color: var(--primary-neon); }
.proj-tab:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 2px; }

.project-tab-content { flex: 1; }
.tab-pane { display: block; }
.tab-pane.hidden { display: none; }
.card-link {
    color: #bbb; text-decoration: none; font-size: 0.85rem;
    font-family: var(--font-mono);
    border-bottom: 1px solid rgba(0,243,255,0.4);
    transition: color 0.2s, border-color 0.2s;
    display: inline-block; padding-bottom: 1px;
}
.card-link:hover { color: var(--primary-neon); border-color: var(--primary-neon); }

/* Code Snippets */
.code-snippet {
    background: rgba(0,0,0,0.6); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 5px; padding: 12px; margin: 0;
    overflow-x: auto; font-family: var(--font-mono); font-size: 0.78rem;
    line-height: 1.6; color: #ccc;
}
.c-kw  { color: #c792ea; } /* purple for keywords */
.c-fn  { color: #82aaff; } /* blue for functions */
.c-num { color: var(--neon-gold); }   /* gold for numbers */
.c-str { color: var(--neon-green); }  /* green for strings */

/* Mini Demo Canvas */
.demo-mini {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    padding: 10px 0;
}
#rocket-demo-canvas {
    border: 1px solid rgba(0,243,255,0.2); border-radius: 5px;
    background: #000; max-width: 100%;
}
.demo-run-btn {
    background: transparent; border: 1px solid var(--primary-neon);
    color: var(--primary-neon); font-family: var(--font-mono); font-size: 0.78rem;
    padding: 5px 16px; cursor: pointer; border-radius: 4px;
    transition: background 0.2s, color 0.2s;
}
.demo-run-btn:hover { background: var(--primary-neon); color: #000; }

/* --- 11. CERTIFICATIONS --- */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 28px; }
.cert-card {
    background: rgba(20,20,30,0.65); border: 1px solid rgba(0,243,255,0.18);
    border-radius: 12px; padding: 28px; position: relative;
    transition: all 0.35s; overflow: hidden; display: flex; flex-direction: column;
}
.cert-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-neon), transparent);
    transform: translateX(-100%); transition: 0.6s;
}
.cert-card:hover { transform: translateY(-8px); border-color: var(--primary-neon); box-shadow: 0 10px 30px rgba(0,243,255,0.1); }
.cert-card:hover::before { transform: translateX(100%); }
.cert-icon { font-size: 2.2rem; color: var(--secondary-neon); margin-bottom: 18px; transition: 0.4s; }
.cert-card:hover .cert-icon { color: var(--primary-neon); }
.cert-name   { font-size: 1.05rem; margin-bottom: 8px; color: #fff; line-height: 1.3; }
.cert-issuer { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; margin-bottom: 5px; font-family: var(--font-mono); letter-spacing: 0.5px; }
.cert-date   { font-size: 0.75rem; color: rgba(255,255,255,0.28); margin-bottom: 22px; font-family: var(--font-mono); }
.cert-link {
    font-size: 0.85rem; color: var(--primary-neon); text-decoration: none; font-weight: 700;
    display: inline-flex; align-items: center; gap: 7px; transition: gap 0.25s; margin-top: auto;
}
.cert-link:hover { gap: 14px; text-shadow: 0 0 10px var(--primary-neon); }
.cert-link:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 2px; }

/* --- 12. QUOTE SECTION --- */
.quote-section {
    min-height: 100vh; width: 100%;
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    text-align: center; padding: 0 24px;
}
.quote-text {
    font-size: clamp(1.8rem, 4.5vw, 5rem);
    font-weight: 100; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 20px;
    background: linear-gradient(90deg, #fff, var(--primary-neon));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(0,243,255,0.3));
    min-height: 80px; cursor: default; transition: filter 0.3s;
}
.quote-text:hover { filter: drop-shadow(0 0 28px rgba(0,243,255,0.9)); }
.quote-author { font-size: 1.3rem; color: var(--text-muted); font-weight: 300; letter-spacing: 4px; }
.typing-active::after {
    content: '|'; display: inline-block; margin-left: 5px;
    color: var(--primary-neon); animation: blink-caret 0.75s step-end infinite;
    text-shadow: 0 0 10px var(--primary-neon); -webkit-text-fill-color: var(--primary-neon);
}
@keyframes blink-caret { 50% { opacity: 0; } }

/* --- 13. CONTACT --- */
.contact-section {
    min-height: 100vh; width: 100%;
    display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 80px 20px;
}
.contact-container {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
    width: 100%; max-width: 1000px; align-items: center;
}
.contact-title { font-size: 3.5rem; margin-bottom: 18px; color: #fff; }
.contact-sub { font-size: 1rem; color: var(--text-muted); margin-bottom: 36px; line-height: 1.8; }
.highlight-bold { color: var(--primary-neon); font-weight: 700; }
.social-row { display: flex; align-items: center; margin-bottom: 18px; font-size: 1.05rem; color: #ccc; font-family: var(--font-mono); }
.social-row i { color: var(--text-main); width: 28px; margin-right: 14px; font-size: 1.3rem; }
.contact-form { display: flex; flex-direction: column; gap: 22px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { color: var(--text-muted); font-size: 0.82rem; letter-spacing: 1px; font-family: var(--font-mono); }
.contact-form input, .contact-form textarea {
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1);
    padding: 13px 15px; color: #fff; font-family: var(--font-mono); font-size: 0.95rem;
    border-radius: 5px; transition: border-color 0.25s, box-shadow 0.25s;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--primary-neon); box-shadow: 0 0 14px rgba(0,243,255,0.18);
}
.submit-btn {
    padding: 14px; background: var(--primary-neon); color: #000; font-family: var(--font-main);
    font-weight: 700; border: none; font-size: 1rem; letter-spacing: 2px; cursor: pointer;
    transition: background 0.25s, box-shadow 0.25s, transform 0.2s; text-transform: uppercase; border-radius: 4px;
}
.submit-btn:hover { background: #fff; box-shadow: 0 0 22px var(--primary-neon); transform: scale(1.02); }
.submit-btn:focus-visible { outline: 2px solid var(--neon-green); outline-offset: 3px; }
@media (max-width: 768px) { .contact-container { grid-template-columns: 1fr; } }

/* --- 14. FOOTER --- */
footer {
    width: 100%; padding: 50px 0; text-align: center;
    color: var(--text-muted); font-size: 0.95rem;
}

/* --- 15. SIDE NAV --- */
.side-nav {
    display: none; position: fixed; top: 50%; right: 15px;
    transform: translateY(-50%); flex-direction: column; gap: 18px; z-index: 9999;
}
.side-dot {
    width: 11px; height: 11px; border-radius: 50%;
    background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.08);
    transition: all 0.3s; display: block;
}
.side-dot:hover   { background: #fff; transform: scale(1.3); }
.side-dot:focus-visible { outline: 2px solid var(--primary-neon); outline-offset: 3px; }
.side-dot.active  { background: var(--primary-neon); box-shadow: 0 0 14px var(--primary-neon); transform: scale(1.5); border-color: var(--primary-neon); }

/* --- 16. SCROLL REVEAL --- */
.section, .hero, .quote-section, .contact-section, footer {
    opacity: 0; transform: translateY(28px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.section-visible { opacity: 1 !important; transform: translateY(0) !important; }

/* Disable scroll reveal for reduced motion */
@media (prefers-reduced-motion: reduce) {
    .section, .hero, .quote-section, .contact-section, footer {
        opacity: 1 !important; transform: none !important; transition: none !important;
    }
}

/* --- 17. FOCUS STATES (A11Y) --- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--primary-neon); outline-offset: 3px;
}

/* --- 18. PRINT / RESUME --- */
@media print {
    #terminal-loader, #main-nav, .side-nav, #trail-canvas, .cursor-dot,
    .galaxy-bg, .hero-terminal, .quant-chips { display: none !important; }
    body { background: #fff; color: #000; font-family: Georgia, serif; }
    .hero, .section { opacity: 1 !important; transform: none !important; padding: 20px 5%; }
    .hero-name { color: #000; text-shadow: none; font-size: 2.5rem; }
    .section-title { color: #000; border-left-color: #000; }
    .project-card, .cert-card { border: 1px solid #ccc; box-shadow: none; }
    a { color: #000; }
}