/* ============================================================
   Rayan Elyounassi — Portfolio (fully animated)
   Dark technical aesthetic · emerald accent
   ============================================================ */

:root {
    --bg: #0a0a0c;
    --bg-soft: #101014;
    --surface: rgba(20, 20, 26, 0.72);
    --surface-solid: #14141a;
    --surface-2: rgba(30, 30, 38, 0.85);
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #e8e8ec;
    --text-dim: #9a9aa5;
    --text-faint: #62626e;

    --accent: #34d399;
    --accent-bright: #6ee7b7;
    --accent-dim: rgba(52, 211, 153, 0.12);
    --accent-line: rgba(52, 211, 153, 0.35);

    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    --container: 1180px;
    --radius: 12px;
    --radius-sm: 6px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --transition: 200ms var(--ease);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
}

body {
    font-family: var(--font-display);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ---------- 3D CANVAS ---------- */
#bg-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    display: block;
    /* Fallback background — shows only if WebGL fails */
    background:
        radial-gradient(60% 50% at 70% 20%, rgba(52, 211, 153, 0.10), transparent 65%),
        radial-gradient(45% 40% at 20% 75%, rgba(52, 211, 153, 0.06), transparent 60%),
        #0a0a0c;
}

/* When WebGL is unavailable: animated CSS starfield so the page still looks alive */
body.no-webgl #bg-canvas {
    background:
        radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.5), transparent),
        radial-gradient(2px 2px at 40% 70%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1.5px 1.5px at 60% 20%, rgba(255,255,255,0.45), transparent),
        radial-gradient(2px 2px at 80% 55%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1.5px 1.5px at 30% 85%, rgba(255,255,255,0.5), transparent),
        radial-gradient(2px 2px at 90% 80%, rgba(255,255,255,0.35), transparent),
        radial-gradient(1.5px 1.5px at 10% 55%, rgba(255,255,255,0.4), transparent),
        radial-gradient(2px 2px at 70% 90%, rgba(255,255,255,0.3), transparent),
        radial-gradient(60% 50% at 70% 20%, rgba(52, 211, 153, 0.12), transparent 65%),
        radial-gradient(45% 40% at 20% 75%, rgba(52, 211, 153, 0.07), transparent 60%),
        #0a0a0c;
    animation: cssDrift 22s ease-in-out infinite alternate;
}

@keyframes cssDrift {
    from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
    to   { background-position: 60px 40px, -40px 30px, 30px -30px, -20px 50px, 50px -20px, -60px 20px, 20px -40px, -30px -50px, 0 0, 0 0, 0 0; }
}

/* Revealed-state helper used by the JS fallback path */
.is-visible {
    opacity: 1 !important;
    transform: none !important;
}

main {
    position: relative;
    z-index: 2;
}

.site-header,
.site-footer {
    position: relative;
    z-index: 3;
}

.container {
    width: min(var(--container), 100% - 48px);
    margin-inline: auto;
}

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

.accent {
    color: var(--accent);
}

.accent-bright {
    color: var(--accent-bright);
}

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

a:hover {
    color: var(--accent-bright);
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 8px;
    z-index: 100;
    background: var(--accent);
    color: #06120e;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 13px;
}

.skip-link:focus {
    left: 8px;
}

::selection {
    background: var(--accent);
    color: #06120e;
}

/* ---------- PRELOADER ---------- */
.preloader {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 600ms var(--ease), visibility 600ms var(--ease);
}

.preloader.done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}

.preloader-mark {
    font-size: 30px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent);
    border: 2px solid var(--accent-line);
    width: 84px;
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    animation: preloaderPulse 1.4s ease-in-out infinite;
}

@keyframes preloaderPulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-dim); transform: scale(1); }
    50% { box-shadow: 0 0 40px 4px var(--accent-dim); transform: scale(1.04); }
}

.preloader-bar {
    width: 200px;
    height: 2px;
    background: var(--line);
    border-radius: 2px;
    overflow: hidden;
}

.preloader-bar span {
    display: block;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    transition: width 200ms linear;
}

.preloader-count {
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 0.2em;
}

/* ---------- SCROLL PROGRESS ---------- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    z-index: 60;
    box-shadow: 0 0 12px var(--accent-line);
}

/* ---------- NAV ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(10, 10, 12, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background var(--transition);
}

.site-header.scrolled {
    border-bottom-color: var(--line);
    background: rgba(10, 10, 12, 0.88);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
}

.nav-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--accent-line);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 13px;
    color: var(--accent);
    background: var(--accent-dim);
}

.nav-brand-text {
    font-weight: 600;
    font-size: 17px;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
}

.nav-links a {
    color: var(--text-dim);
    font-size: 14.5px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
    color: var(--text);
    background: var(--surface-2);
}

.nav-links .nav-cta {
    color: #06120e;
    background: var(--accent);
    font-weight: 600;
    margin-left: 8px;
}

.nav-links .nav-cta:hover {
    background: var(--accent-bright);
    color: #06120e;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    margin: 0 auto;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
    position: relative;
    padding: 170px 0 90px;
    min-height: 100dvh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-dim);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 16px;
    margin-bottom: 28px;
    background: rgba(16, 16, 20, 0.6);
    backdrop-filter: blur(8px);
}

.eyebrow .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px var(--accent-dim), 0 0 12px var(--accent-line); }
    50% { box-shadow: 0 0 0 6px var(--accent-dim), 0 0 22px var(--accent-line); }
}

.hero-name {
    font-size: clamp(52px, 8vw, 92px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 0.98;
    text-transform: uppercase;
}

.hero-name .line {
    display: block;
    overflow: hidden;
}

.hero-name .line > span {
    display: block;
    transform: translateY(110%);
    will-change: transform;
}

.hero-last {
    font-weight: 300;
    color: var(--text-dim);
}

.hero-role {
    margin-top: 22px;
    font-size: 13px;
    letter-spacing: 0.16em;
    color: var(--accent);
    opacity: 0;
}

.hero-desc {
    margin-top: 18px;
    max-width: 52ch;
    color: var(--text-dim);
    font-size: 16.5px;
    opacity: 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    border: 1px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), background var(--transition),
                border-color var(--transition), box-shadow var(--transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--accent);
    color: #06120e;
    box-shadow: 0 0 0 1px var(--accent-line), 0 8px 26px -8px var(--accent-line);
}

.btn-primary:hover {
    background: var(--accent-bright);
    color: #06120e;
}

.btn-ghost {
    border-color: var(--line-strong);
    color: var(--text);
    background: rgba(16, 16, 20, 0.5);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    border-color: var(--accent-line);
    color: var(--accent-bright);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
    margin-top: 44px;
    list-style: none;
    color: var(--text-faint);
    font-size: 12.5px;
    letter-spacing: 0.04em;
    opacity: 0;
}

.hero-meta strong {
    color: var(--text);
    font-size: 19px;
    display: block;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* Terminal */
.hero-visual {
    position: relative;
}

.terminal {
    background: rgba(16, 16, 20, 0.82);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(52, 211, 153, 0.05);
    overflow: hidden;
    backdrop-filter: blur(12px);
    opacity: 0;
    transform: translateY(30px) rotate(0.5deg);
}

.terminal-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(30, 30, 38, 0.85);
    border-bottom: 1px solid var(--line);
}

.t-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.t-red { background: #f87171; }
.t-yellow { background: #fbbf24; }
.t-green { background: #34d399; }

.terminal-title {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-faint);
}

.terminal-body {
    padding: 20px 22px;
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--text-dim);
    min-height: 250px;
}

.terminal-body p {
    margin-bottom: 8px;
}

.t-prompt {
    color: var(--accent);
    font-weight: 600;
    margin-right: 8px;
}

.t-out {
    color: var(--text);
    padding-left: 22px;
    white-space: pre-wrap;
}

.t-out .t-strong {
    color: var(--accent);
    font-weight: 600;
}

.t-out .t-success {
    color: var(--accent-bright);
    font-weight: 600;
}

.t-cursor-line {
    margin-top: 10px;
}

.t-cursor {
    display: inline-block;
    color: var(--accent);
    animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.photo-orb {
    position: absolute;
    top: -34px;
    right: -26px;
    width: 118px;
    height: 118px;
    border-radius: 50%;
    padding: 5px;
    background: linear-gradient(135deg, var(--accent-line), transparent 60%);
    border: 1px solid var(--accent-line);
    box-shadow: 0 0 40px -6px var(--accent-dim);
    z-index: 2;
}

.photo-orb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.hero-scroll {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--text-faint);
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 46px;
    background: linear-gradient(var(--accent-line), transparent);
    animation: drop 2s ease-in-out infinite;
}

@keyframes drop {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- SECTIONS ---------- */
.section {
    padding: 110px 0;
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(10, 10, 12, 0.85), rgba(10, 10, 12, 0.92));
    z-index: -1;
}

.section-index {
    font-size: 12.5px;
    letter-spacing: 0.24em;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.08;
}

/* ---------- ABOUT ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
    margin-top: 40px;
}

.about-body p {
    color: var(--text-dim);
    font-size: 16.5px;
    max-width: 58ch;
}

.about-facts {
    list-style: none;
    margin-top: 32px;
    border-top: 1px solid var(--line);
}

.about-facts li {
    display: flex;
    gap: 20px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 13px;
    color: var(--text-dim);
}

.fact-label {
    color: var(--text-faint);
    min-width: 92px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11.5px;
    padding-top: 2px;
}

/* ---------- PROJECTS ---------- */
.projects-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
    margin-top: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.section-sub {
    color: var(--text-dim);
    max-width: 44ch;
}

.project-featured {
    margin-bottom: 20px;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 26px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: border-color var(--transition), box-shadow var(--transition),
                background var(--transition);
    position: relative;
    transform-style: preserve-3d;
    will-change: transform;
    backdrop-filter: blur(10px);
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), rgba(52, 211, 153, 0.08), transparent 45%);
    opacity: 0;
    transition: opacity 300ms var(--ease);
    pointer-events: none;
    z-index: 0;
}

.project-card:hover::before {
    opacity: 1;
}

.project-card::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 400ms var(--ease);
    z-index: 1;
}

.project-card:hover::after {
    transform: scaleY(1);
}

.project-card > * {
    position: relative;
    z-index: 2;
}

.project-card.featured {
    background:
        linear-gradient(120deg, var(--accent-dim), transparent 45%),
        var(--surface);
    border-color: var(--accent-line);
}

.project-card.featured .project-title {
    font-size: 22px;
}

.project-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-year {
    font-size: 12.5px;
    color: var(--accent);
    letter-spacing: 0.1em;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--text-dim);
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    transition: color var(--transition), border-color var(--transition);
}

.project-link:hover {
    color: var(--accent);
    border-color: var(--accent-line);
}

.project-link.is-text {
    border-color: transparent;
    background: var(--surface-2);
    cursor: default;
}

.project-title {
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.tag {
    font-size: 11px;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid var(--accent-line);
    border-radius: 999px;
    padding: 3px 10px;
    vertical-align: middle;
    font-weight: 500;
}

.project-desc {
    color: var(--text-dim);
    font-size: 14.5px;
    flex: 1;
}

.project-tech {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech li {
    font-size: 11.5px;
    color: var(--text-dim);
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    letter-spacing: 0.02em;
    transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.project-tech li:hover {
    color: var(--accent-bright);
    border-color: var(--accent-line);
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.projects-note {
    margin-top: 36px;
    color: var(--text-faint);
    font-size: 13px;
}

.projects-note a {
    color: var(--accent);
    border-bottom: 1px solid var(--accent-line);
}

/* ---------- SKILLS ---------- */
.skills-head {
    margin-top: 40px;
    margin-bottom: 36px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.skill-group {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 24px;
    background: var(--surface);
    backdrop-filter: blur(10px);
    transition: border-color var(--transition), transform var(--transition);
}

.skill-group:hover {
    border-color: var(--line-strong);
    transform: translateY(-2px);
}

.skill-group-title {
    font-size: 13px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

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

.skill-chips span {
    font-size: 12.5px;
    color: var(--text-dim);
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.skill-chips span:hover {
    color: var(--accent-bright);
    border-color: var(--accent-line);
    transform: translateY(-2px);
}

/* ---------- CERTIFICATIONS ---------- */
.cert-head {
    margin-top: 40px;
    margin-bottom: 36px;
}

.cert-list {
    list-style: none;
    border-top: 1px solid var(--line);
}

.cert-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 20px;
    padding: 16px 8px;
    border-bottom: 1px solid var(--line);
    transition: background var(--transition), padding var(--transition);
}

.cert-item:hover {
    background: var(--surface);
    padding-left: 16px;
}

.cert-name {
    font-weight: 500;
    font-size: 15.5px;
}

.cert-meta {
    font-size: 12.5px;
    color: var(--text-faint);
}

.cert-date {
    font-size: 12.5px;
    color: var(--accent);
}

/* ---------- CONTACT ---------- */
.contact {
    background:
        radial-gradient(900px 380px at 50% 0%, var(--accent-dim), transparent 70%),
        var(--bg);
}

.contact-title {
    margin-top: 40px;
    max-width: 22ch;
}

.contact-sub {
    margin-top: 20px;
    color: var(--text-dim);
    font-size: 16.5px;
    max-width: 46ch;
}

.contact-email {
    display: inline-block;
    margin-top: 36px;
    font-size: clamp(22px, 4vw, 34px);
    font-weight: 500;
    color: var(--text);
    border-bottom: 2px solid var(--accent-line);
    padding-bottom: 6px;
    position: relative;
    transition: color var(--transition), border-color var(--transition);
}

.contact-email::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg, var(--accent), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 400ms var(--ease);
}

.contact-email:hover {
    color: var(--accent);
}

.contact-email:hover::after {
    transform: scaleX(1);
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 36px;
}

/* ---------- FOOTER ---------- */
.site-footer {
    border-top: 1px solid var(--line);
    padding: 34px 0;
    background: rgba(10, 10, 12, 0.85);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--text-faint);
    font-size: 12.5px;
    flex-wrap: wrap;
}

/* ---------- SCROLL REVEAL (JS-driven via anime) ---------- */
[data-reveal] {
    opacity: 0;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 960px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero {
        padding: 140px 0 80px;
        min-height: auto;
    }

    .hero-visual {
        max-width: 560px;
    }

    .hero-scroll {
        display: none;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

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

    .cert-item {
        grid-template-columns: 1fr auto;
    }

    .cert-meta {
        display: none;
    }

    .projects-head {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .nav-links {
        position: fixed;
        top: 68px;
        right: 16px;
        left: 16px;
        flex-direction: column;
        align-items: stretch;
        background: rgba(10, 10, 12, 0.95);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        padding: 12px;
        gap: 4px;
        display: none;
        box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(16px);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        display: block;
        padding: 12px 16px;
    }

    .nav-links .nav-cta {
        margin-left: 0;
        text-align: center;
    }

    .nav-toggle {
        display: flex;
    }

    .photo-orb {
        width: 84px;
        height: 84px;
        top: -24px;
        right: -8px;
    }

    .section {
        padding: 80px 0;
    }

    .cert-item {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .cert-date {
        font-size: 12px;
    }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
    }
}