/* ═══════════════════════════════════════════════════════════
   Keith Nicolosi — portfolio
   "AI Lab" — void base, aurora field, frosted glass
   ═══════════════════════════════════════════════════════════ */

:root {
    /* Base */
    --void:        #08090C;
    --void-2:      #0B0D12;

    /* Glass */
    --glass:       rgba(255, 255, 255, 0.026);
    --glass-hi:    rgba(255, 255, 255, 0.045);
    --edge:        rgba(255, 255, 255, 0.075);
    --edge-hi:     rgba(255, 255, 255, 0.16);

    /* Type */
    --text:        #E9EBF2;
    --text-2:      #9AA0B2;
    --text-3:      #666D80;

    /* Spectrum */
    --violet:      #8B5CF6;
    --indigo:      #6366F1;
    --cyan:        #22D3EE;
    --amber:       #F0B45C;
    --mint:        #34D399;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, monospace;

    --r-lg: 22px;
    --r-md: 16px;
    --r-sm: 10px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --maxw: 1120px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--void);
    font-family: var(--font);
    color: var(--text-2);
    font-size: 16px;
    line-height: 1.65;
    overflow-x: hidden;
    position: relative;
}

::selection { background: rgba(139, 92, 246, 0.35); color: #fff; }

.mono { font-family: var(--mono); }
.dim  { color: var(--text-3); }

.grad {
    background: linear-gradient(100deg, #A78BFA 0%, #818CF8 45%, #22D3EE 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.skip-link {
    position: absolute;
    left: -9999px;
    background: var(--text);
    color: var(--void);
    padding: 12px 20px;
    border-radius: var(--r-sm);
    font-size: 13px;
    font-weight: 600;
    z-index: 9999;
}
.skip-link:focus { left: 16px; top: 16px; }

:focus-visible {
    outline: 2px solid var(--indigo);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ═══ AURORA FIELD ═══════════════════════════════════════ */

.aurora {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.5;
    will-change: transform;
}

.b1 {
    width: 620px; height: 620px;
    top: -180px; left: -120px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.55), transparent 70%);
    animation: drift-1 26s ease-in-out infinite alternate;
}

.b2 {
    width: 560px; height: 560px;
    top: -60px; right: -140px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.34), transparent 70%);
    animation: drift-2 32s ease-in-out infinite alternate;
}

.b3 {
    width: 720px; height: 720px;
    top: 42%; left: 46%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.24), transparent 70%);
    animation: drift-3 38s ease-in-out infinite alternate;
}

@keyframes drift-1 {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(120px, 90px, 0) scale(1.18); }
}
@keyframes drift-2 {
    from { transform: translate3d(0, 0, 0) scale(1.1); }
    to   { transform: translate3d(-140px, 120px, 0) scale(0.9); }
}
@keyframes drift-3 {
    from { transform: translate3d(-50%, -50%, 0) scale(0.95); }
    to   { transform: translate3d(-42%, -58%, 0) scale(1.15); }
}

/* Cursor-tracked glow — positioned by script.js */
.pointer-glow {
    position: absolute;
    width: 520px; height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.13), transparent 68%);
    filter: blur(48px);
    opacity: 0;
    transform: translate3d(-50%, -50%, 0);
    transition: opacity 0.8s var(--ease);
    will-change: transform;
}

.pointer-glow.on { opacity: 1; }

/* Film grain */
.grain {
    position: fixed;
    inset: -50%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.032;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ═══ NAV ════════════════════════════════════════════════ */

.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 16px 40px;
    border-bottom: 1px solid transparent;
    transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
                backdrop-filter 0.4s var(--ease);
}

.nav.scrolled {
    background: rgba(8, 9, 12, 0.62);
    border-bottom-color: var(--edge);
    backdrop-filter: blur(22px) saturate(160%);
    -webkit-backdrop-filter: blur(22px) saturate(160%);
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
    margin-right: auto;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px; height: 32px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--violet), var(--cyan));
    color: #fff;
    font-family: var(--mono);
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}

.brand-name {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.011em;
}

.nav-links { display: flex; align-items: center; gap: 4px; }

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-2);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: var(--r-sm);
    transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-links a:hover { color: var(--text); background: var(--glass-hi); }
.nav-links a.active { color: var(--text); }

.nav-right { display: flex; align-items: center; gap: 10px; }

.nav-cta {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    padding: 9px 18px;
    border-radius: var(--r-sm);
    border: 1px solid var(--edge);
    background: var(--glass);
    transition: border-color 0.25s var(--ease), background 0.25s var(--ease),
                transform 0.25s var(--ease);
}

.nav-cta:hover {
    border-color: var(--edge-hi);
    background: var(--glass-hi);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    width: 38px; height: 38px;
    border-radius: var(--r-sm);
    border: 1px solid var(--edge);
    background: var(--glass);
    cursor: pointer;
    padding: 0;
    position: relative;
}

.nav-toggle span {
    position: absolute;
    left: 50%;
    width: 15px; height: 1.5px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle span:nth-child(1) { transform: translate(-50%, -4px); }
.nav-toggle span:nth-child(2) { transform: translate(-50%, 4px); }

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translate(-50%, 0) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translate(-50%, 0) rotate(-45deg); }

/* ═══ LAYOUT ═════════════════════════════════════════════ */

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

.section {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 112px 40px;
}

/* ═══ HERO ═══════════════════════════════════════════════ */

.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding: 120px 40px 90px;
}

.hero-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    width: 100%;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.04em;
    color: var(--mint);
    background: rgba(52, 211, 153, 0.07);
    border: 1px solid rgba(52, 211, 153, 0.22);
    border-radius: 999px;
    padding: 6px 15px 6px 12px;
    margin-bottom: 34px;
}

.badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--mint);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
    50%      { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

.hero-title {
    font-size: clamp(46px, 8vw, 92px);
    font-weight: 600;
    line-height: 1.02;
    letter-spacing: -0.038em;
    color: var(--text);
    margin-bottom: 26px;
}

.hero-lede {
    font-size: clamp(21px, 2.6vw, 31px);
    font-weight: 500;
    line-height: 1.38;
    letter-spacing: -0.021em;
    color: var(--text);
    max-width: 22ch;
    margin-bottom: 24px;
    text-wrap: balance;
}

.hero-sub {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-2);
    max-width: 56ch;
    margin-bottom: 40px;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 72px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14.5px;
    font-weight: 600;
    text-decoration: none;
    padding: 13px 26px;
    border-radius: 12px;
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
                background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(120deg, var(--violet), var(--indigo) 55%, var(--cyan));
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 10px 34px -12px rgba(99, 102, 241, 0.85);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 44px -12px rgba(99, 102, 241, 0.95);
}

.btn-ghost {
    color: var(--text);
    background: var(--glass);
    border: 1px solid var(--edge);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.btn-ghost:hover {
    border-color: var(--edge-hi);
    background: var(--glass-hi);
    transform: translateY(-2px);
}

.btn-arrow { transition: transform 0.3s var(--ease); }
.btn:hover .btn-arrow { transform: translateX(4px); }

.hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 26px 34px;
    padding-top: 34px;
    border-top: 1px solid var(--edge);
}

.hero-meta dt {
    font-family: var(--mono);
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 8px;
}

.hero-meta dd {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.5;
}

/* ═══ SECTION HEADERS ════════════════════════════════════ */

.sec-head { margin-bottom: 48px; }

.sec-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 16px;
}

.sec-tick {
    width: 22px; height: 1px;
    background: linear-gradient(90deg, var(--violet), var(--cyan));
    flex-shrink: 0;
}

.sec-title {
    font-size: clamp(28px, 3.6vw, 42px);
    font-weight: 600;
    line-height: 1.14;
    letter-spacing: -0.028em;
    color: var(--text);
    max-width: 20ch;
}

/* ═══ GLASS ══════════════════════════════════════════════ */

.glass {
    position: relative;
    background: var(--glass);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 42%);
    border: 1px solid var(--edge);
    border-radius: var(--r-lg);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    transition: border-color 0.35s var(--ease), transform 0.35s var(--ease),
                box-shadow 0.35s var(--ease);
}

/* ═══ ABOUT ══════════════════════════════════════════════ */

.about-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 22px;
    align-items: start;
}

.portrait {
    padding: 14px;
    overflow: hidden;
}

.portrait picture { display: block; }

.portrait img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 14px;
}

.portrait figcaption {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 11px;
    color: var(--text-2);
    padding: 14px 4px 4px;
    letter-spacing: 0.02em;
}

.about-copy { display: flex; flex-direction: column; gap: 14px; }

.about-card { padding: 26px 28px; }

.about-card:hover {
    border-color: var(--edge-hi);
    transform: translateY(-2px);
}

.about-card h3 {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 12px;
}

.about-card p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-2);
}

/* ═══ WORK ═══════════════════════════════════════════════ */

.project {
    padding: 32px 34px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.project:hover {
    border-color: var(--edge-hi);
    transform: translateY(-3px);
    box-shadow: 0 24px 60px -30px rgba(99, 102, 241, 0.55);
}

.featured { margin-bottom: 16px; }

.project-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.project-kicker {
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 8px;
}

.project-title {
    font-size: clamp(21px, 2.4vw, 27px);
    font-weight: 600;
    letter-spacing: -0.022em;
    color: var(--text);
    line-height: 1.2;
}

.featured .project-title { font-size: clamp(26px, 3vw, 34px); }

.pill {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 5px 11px;
    border-radius: 999px;
    white-space: nowrap;
    flex-shrink: 0;
}

.pill-amber { color: var(--amber); background: rgba(240, 180, 92, 0.08); border: 1px solid rgba(240, 180, 92, 0.24); }
.pill-cyan  { color: var(--cyan);  background: rgba(34, 211, 238, 0.08); border: 1px solid rgba(34, 211, 238, 0.24); }

.project-body {
    font-size: 15px;
    line-height: 1.82;
    color: var(--text-2);
    max-width: 68ch;
}

.project-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.chips { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; }

.chips li {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-2);
    padding: 4px 11px;
    border-radius: 999px;
    border: 1px solid var(--edge);
    background: rgba(255, 255, 255, 0.02);
    transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.glass:hover .chips li { border-color: var(--edge-hi); color: var(--text); }

.project-link {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--cyan);
    text-decoration: none;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(34, 211, 238, 0.24);
    white-space: nowrap;
    transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.project-link:hover {
    background: rgba(34, 211, 238, 0.1);
    border-color: rgba(34, 211, 238, 0.5);
}

.project-note {
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.03em;
    padding-top: 4px;
    border-top: 1px solid var(--edge);
    margin-top: 2px;
    padding-top: 16px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* ═══ STACK ══════════════════════════════════════════════ */

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.stack-card { padding: 26px 26px 28px; }

.stack-card:hover {
    border-color: var(--edge-hi);
    transform: translateY(-3px);
}

.stack-card h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.012em;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--edge);
}

/* ═══ EXPERIENCE ═════════════════════════════════════════ */

.timeline {
    list-style: none;
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 4px; top: 8px; bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg,
        rgba(139, 92, 246, 0.55),
        rgba(34, 211, 238, 0.3),
        transparent);
}

.tl-item { position: relative; margin-bottom: 16px; }
.tl-item:last-child { margin-bottom: 0; }

.tl-node {
    position: absolute;
    left: -30px; top: 26px;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--void);
    border: 1px solid var(--violet);
    box-shadow: 0 0 0 3px var(--void), 0 0 14px rgba(139, 92, 246, 0.7);
}

.tl-when {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 10px;
}

.tl-card { padding: 24px 26px; }

.tl-card:hover {
    border-color: var(--edge-hi);
    transform: translateX(3px);
}

.tl-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.014em;
    margin-bottom: 4px;
}

.tl-org {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--cyan);
    letter-spacing: 0.02em;
    margin-bottom: 14px;
}

.tl-desc {
    font-size: 14.5px;
    line-height: 1.8;
    color: var(--text-2);
    max-width: 62ch;
}

.tl-points {
    list-style: none;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--edge);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tl-points li {
    position: relative;
    padding-left: 18px;
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--text-2);
    max-width: 62ch;
}

.tl-points li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 5px; height: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--violet), var(--cyan));
}

/* ═══ CONTACT ════════════════════════════════════════════ */

.contact-panel {
    padding: 56px 48px;
    overflow: hidden;
}

.contact-glow {
    position: absolute;
    top: -160px; left: 50%;
    transform: translateX(-50%);
    width: 620px; height: 340px;
    background: radial-gradient(ellipse, rgba(139, 92, 246, 0.3), transparent 68%);
    filter: blur(56px);
    pointer-events: none;
}

.contact-panel > *:not(.contact-glow) { position: relative; z-index: 1; }

.contact-title {
    font-size: clamp(26px, 3.6vw, 40px);
    font-weight: 600;
    line-height: 1.18;
    letter-spacing: -0.028em;
    color: var(--text);
    max-width: 20ch;
    margin-bottom: 40px;
    text-wrap: balance;
}

.mailto {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    font-family: var(--mono);
    font-size: clamp(14px, 2vw, 19px);
    color: var(--text);
    text-decoration: none;
    padding: 22px 26px;
    border-radius: var(--r-md);
    border: 1px solid var(--edge);
    background: rgba(255, 255, 255, 0.022);
    margin-bottom: 14px;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
                transform 0.3s var(--ease);
}

.mailto:hover {
    border-color: rgba(139, 92, 246, 0.5);
    background: rgba(139, 92, 246, 0.08);
    transform: translateY(-2px);
}

.mailto:hover .btn-arrow { transform: translateX(5px); }

.elsewhere {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.elsewhere a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    border-radius: var(--r-md);
    border: 1px solid var(--edge);
    background: rgba(255, 255, 255, 0.022);
    text-decoration: none;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
                transform 0.3s var(--ease);
}

.elsewhere a:hover {
    border-color: var(--edge-hi);
    background: var(--glass-hi);
    transform: translateY(-2px);
}

.el-k {
    font-size: 10.5px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-3);
    flex-shrink: 0;
}

.el-v { font-size: 14px; color: var(--text); margin-right: auto; }

.el-a { font-size: 13px; color: var(--text-3); transition: color 0.25s var(--ease); }
.elsewhere a:hover .el-a { color: var(--cyan); }

/* ═══ FOOTER ═════════════════════════════════════════════ */

footer {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 36px 40px 56px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid var(--edge);
}

footer p { font-size: 11.5px; color: var(--text-3); letter-spacing: 0.03em; }

/* ═══ REVEAL ═════════════════════════════════════════════ */

.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.js .reveal.visible { opacity: 1; transform: none; }

/* ═══ REDUCED MOTION ═════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .reveal { opacity: 1; transform: none; transition: none; }
    .blob, .badge-dot { animation: none; }
    .pointer-glow { display: none; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ═══ RESPONSIVE ═════════════════════════════════════════ */

@media (max-width: 1000px) {
    .about-grid { grid-template-columns: 240px 1fr; }
}

@media (max-width: 860px) {
    .nav { padding: 14px 22px; }
    .nav-toggle { display: block; }

    .nav-links {
        position: absolute;
        top: calc(100% + 8px);
        right: 22px;
        left: 22px;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 10px;
        border-radius: var(--r-md);
        border: 1px solid var(--edge);
        background: rgba(11, 13, 18, 0.94);
        backdrop-filter: blur(24px) saturate(160%);
        -webkit-backdrop-filter: blur(24px) saturate(160%);
        box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.8);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
                    visibility 0.3s var(--ease);
    }

    .nav-links.open { opacity: 1; visibility: visible; transform: none; }
    .nav-links a { padding: 12px 14px; }

    .brand-name { display: none; }

    .hero { padding: 108px 22px 80px; }
    .section { padding: 84px 22px; }
    footer { padding: 32px 22px 48px; }

    .about-grid { grid-template-columns: 1fr; }
    .portrait { max-width: 300px; }

    .project-grid { grid-template-columns: 1fr; }
    .contact-panel { padding: 40px 28px; }
    .elsewhere { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .project { padding: 26px 22px; }
    .about-card { padding: 22px 22px; }
    .tl-card { padding: 20px 22px; }
    .cta-row .btn { width: 100%; justify-content: center; }
    .blob { filter: blur(70px); opacity: 0.42; }
    .project-head { flex-direction: column; gap: 12px; }
}