/* ==========================================================================
   Mahir Jawad — portfolio
   Plain CSS, no build step. Theme tokens live on :root[data-theme].
   ========================================================================== */

:root {
    --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-body: "DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Menlo, Consolas, monospace;

    --container: 1120px;
    --gutter: clamp(16px, 4vw, 32px);
    --header-h: 64px;
    --radius-lg: 20px;
    --radius: 14px;
    --radius-sm: 10px;
    --ease: cubic-bezier(.22, 1, .36, 1);
}

:root,
:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #070a09;
    --bg-tint: #0a0f0d;
    --surface: #0e1412;
    --surface-2: #141b18;
    --border: rgba(255, 255, 255, .08);
    --border-strong: rgba(255, 255, 255, .16);
    --text: #e8eeeb;
    --text-muted: #a3aeaa;
    --text-faint: #7a8681;
    --accent: #34d399;
    --accent-hover: #6ee7b7;
    --accent-ink: #03140d;
    --accent-soft: rgba(52, 211, 153, .12);
    --accent-line: rgba(52, 211, 153, .38);
    --gold: #f2c14e;
    --gold-soft: rgba(242, 193, 78, .12);
    --gold-line: rgba(242, 193, 78, .35);
    --shadow: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 24px 48px -28px rgba(0, 0, 0, .8);
    --shadow-hover: 0 1px 0 rgba(255, 255, 255, .05) inset, 0 28px 56px -28px rgba(0, 0, 0, .9);
    --dot: rgba(255, 255, 255, .045);
    --glow-a: rgba(52, 211, 153, .16);
    --glow-b: rgba(14, 116, 144, .14);
    --header-bg: rgba(7, 10, 9, .72);
    --toast-bg: #e8eeeb;
    --toast-ink: #07100c;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #f6f7f4;
    --bg-tint: #eef3ef;
    --surface: #ffffff;
    --surface-2: #f1f4f1;
    --border: rgba(14, 34, 26, .10);
    --border-strong: rgba(14, 34, 26, .22);
    --text: #0e1613;
    --text-muted: #45524c;
    --text-faint: #5f6c66;
    --accent: #047857;
    --accent-hover: #065f46;
    --accent-ink: #ffffff;
    --accent-soft: rgba(4, 120, 87, .09);
    --accent-line: rgba(4, 120, 87, .35);
    --gold: #9a5b00;
    --gold-soft: rgba(180, 110, 0, .10);
    --gold-line: rgba(154, 91, 0, .35);
    --shadow: 0 1px 2px rgba(14, 34, 26, .04), 0 18px 36px -24px rgba(14, 34, 26, .22);
    --shadow-hover: 0 1px 2px rgba(14, 34, 26, .06), 0 24px 44px -24px rgba(14, 34, 26, .3);
    --dot: rgba(14, 34, 26, .07);
    --glow-a: rgba(16, 185, 129, .16);
    --glow-b: rgba(14, 165, 233, .10);
    --header-bg: rgba(246, 247, 244, .82);
    --toast-bg: #0e1613;
    --toast-ink: #f6f7f4;
}

/* ---------- Base ---------- */

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color .3s ease, color .3s ease;
}

body.nav-open { overflow: hidden; }

h1, h2, h3, h4 {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.015em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
strong { font-weight: 600; color: var(--text); }

::selection { background: var(--accent-soft); color: var(--text); }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 6px;
}

.container {
    width: 100%;
    max-width: calc(var(--container) + 2 * var(--gutter));
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.icon {
    width: 18px;
    height: 18px;
    flex: none;
    display: inline-block;
    vertical-align: middle;
}
.icon-sm { width: 14px; height: 14px; }
.icon-gold { color: var(--gold); }

.accent { color: var(--accent); }
.muted { color: var(--text-faint); font-weight: 400; white-space: nowrap; }

.skip-link {
    position: absolute;
    left: 16px;
    top: -100px;
    z-index: 100;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: var(--accent-ink);
    font-weight: 600;
}
.skip-link:focus { top: 12px; }

/* ---------- Buttons & links ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color .2s ease, border-color .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
}
.btn:active { transform: translateY(1px) scale(.98); }
.btn-sm { min-height: 36px; padding: 0 14px; font-size: 14px; }

.btn-primary {
    background: var(--accent);
    color: var(--accent-ink);
    box-shadow: 0 8px 24px -12px var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
    background: var(--surface);
    border-color: var(--border-strong);
    color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent-line); background: var(--surface-2); }

.btn-link {
    padding-inline: 8px;
    color: var(--text-muted);
}
.btn-link:hover { color: var(--accent); }
.btn-link .icon { transition: transform .2s var(--ease); }
.btn-link:hover .icon { transform: translate(2px, -2px); }

.icon-btn {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .15s ease;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent-line); }
.icon-btn:active { transform: scale(.95); }

.inline-link {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: var(--accent-line);
    text-underline-offset: 3px;
    transition: text-decoration-color .2s ease;
}
.inline-link:hover { text-decoration-color: var(--accent); }

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    transition: color .2s ease;
}
.text-link:hover { color: var(--accent); }
.text-link .icon-sm { transition: transform .2s var(--ease); }
.text-link:hover .icon-sm { transform: translate(2px, -2px); }

/* ---------- Badges, tags, chips ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .01em;
    line-height: 1.4;
    white-space: nowrap;
}
.badge .icon { width: 13px; height: 13px; }
.badge-accent { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent); }
.badge-gold { background: var(--gold-soft); border-color: var(--gold-line); color: var(--gold); }
.badge-outline { background: transparent; border-color: var(--border-strong); color: var(--text); }

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.tags li {
    padding: 3px 9px;
    border-radius: 6px;
    background: var(--surface-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.chips li {
    padding: 7px 13px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.3;
    transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.chips li:hover { border-color: var(--accent-line); color: var(--accent); }

.chip-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.chip-link .icon { width: 15px; height: 15px; }
.chip-link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* ---------- Cards ---------- */

.card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: border-color .25s ease, box-shadow .25s ease, transform .25s var(--ease), background-color .3s ease;
}

.card-label {
    margin-bottom: 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-faint);
}

/* ---------- Header ---------- */

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    height: var(--header-h);
    border-bottom: 1px solid transparent;
    transition: background-color .3s ease, border-color .3s ease, backdrop-filter .3s ease;
}
.site-header.is-scrolled {
    background: var(--header-bg);
    border-bottom-color: var(--border);
    -webkit-backdrop-filter: saturate(160%) blur(16px);
    backdrop-filter: saturate(160%) blur(16px);
}
/* backdrop-filter would make the header the containing block of the fixed mobile menu */
body.nav-open .site-header {
    background: var(--bg);
    border-bottom-color: var(--border);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-right: auto;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -0.01em;
}
.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--accent);
    color: var(--accent-ink);
    font-size: 14px;
    letter-spacing: 0;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2px;
}
.nav-link {
    position: relative;
    display: block;
    padding: 8px 12px;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 14.5px;
    font-weight: 500;
    transition: color .2s ease, background-color .2s ease;
}
.nav-link:hover { color: var(--text); background: var(--surface-2); }
.nav-link[aria-current="true"] { color: var(--accent); }
.nav-link[aria-current="true"]::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
}

.nav-cv { display: none; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle .icon-moon,
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: inline-block; }

.nav-toggle { display: none; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: inline-block; }

@media (max-width: 1023px) {
    .nav-toggle { display: inline-grid; }
    .header-cv { display: none; }

    .site-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        bottom: 0;
        padding: 16px var(--gutter) 32px;
        background: var(--bg);
        border-top: 1px solid var(--border);
        overflow-y: auto;
        visibility: hidden;
        opacity: 0;
        transform: translateY(-8px);
        transition: opacity .2s ease, transform .25s var(--ease), visibility 0s linear .25s;
    }
    .site-nav.is-open {
        visibility: visible;
        opacity: 1;
        transform: none;
        transition: opacity .2s ease, transform .25s var(--ease), visibility 0s;
    }
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    .nav-list li + li { border-top: 1px solid var(--border); }
    .nav-link {
        padding: 16px 4px;
        border-radius: 0;
        font-family: var(--font-display);
        font-size: 20px;
        font-weight: 600;
        color: var(--text);
    }
    .nav-link:hover { background: transparent; color: var(--accent); }
    .nav-link[aria-current="true"]::after { display: none; }
    .nav-cv {
        display: flex;
        width: 100%;
        margin-top: 24px;
    }
}

@media (min-width: 1024px) {
    .site-nav {
        display: flex;
        align-items: center;
    }
}

/* ---------- Reveal animation (only when JS is running) ---------- */

.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
    transition-delay: var(--reveal-delay, 0s);
}
.js .reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* ---------- Hero ---------- */

.hero {
    position: relative;
    padding: calc(var(--header-h) + clamp(40px, 8vw, 96px)) 0 clamp(48px, 7vw, 80px);
    overflow: hidden;
    isolation: isolate;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(600px 420px at 78% 18%, var(--glow-a), transparent 70%),
        radial-gradient(520px 380px at 8% 70%, var(--glow-b), transparent 70%),
        radial-gradient(circle, var(--dot) 1px, transparent 1.5px) 0 0 / 28px 28px;
    -webkit-mask-image: linear-gradient(to bottom, #000 60%, transparent);
    mask-image: linear-gradient(to bottom, #000 60%, transparent);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(32px, 6vw, 80px);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    padding: 6px 14px 6px 10px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text-muted);
    font-size: 14px;
}
.pulse {
    position: relative;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}
.pulse::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    opacity: 0;
    animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
    0% { transform: scale(.5); opacity: .8; }
    100% { transform: scale(1.6); opacity: 0; }
}

.eyebrow {
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero-title {
    font-size: clamp(2.9rem, 1.6rem + 5.6vw, 5.4rem);
    font-weight: 700;
    line-height: .98;
    letter-spacing: -0.035em;
}

.hero-lede {
    max-width: 34em;
    margin-top: 24px;
    color: var(--text-muted);
    font-size: clamp(1.05rem, 1rem + .35vw, 1.25rem);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 32px;
}

.social-row {
    display: flex;
    gap: 10px;
    margin-top: 28px;
}

.hero-portrait {
    position: relative;
    margin: 0;
    justify-self: center;
    width: min(100%, 380px);
}
.portrait-frame {
    position: relative;
    padding: 10px;
    border: 1px solid var(--border-strong);
    border-radius: 28px;
    background: linear-gradient(160deg, var(--accent-soft), transparent 55%), var(--surface);
    box-shadow: var(--shadow);
}
.portrait-frame img {
    width: 100%;
    aspect-ratio: 4 / 4.6;
    object-fit: cover;
    object-position: 50% 18%;
    border-radius: 20px;
    background: #fff;
}


.stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: clamp(48px, 7vw, 80px) 0 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.stat {
    display: flex;
    flex-direction: column-reverse;
    gap: 4px;
    padding: 22px 24px;
}
.stat + .stat { border-left: 1px solid var(--border); }
.stat dt { color: var(--text-faint); font-size: 13.5px; }
.stat dd {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

/* ---------- Sections ---------- */

.section {
    position: relative;
    padding: clamp(52px, 6.5vw, 84px) 0;
}

.section-tint {
    background: linear-gradient(to bottom, transparent, var(--bg-tint) 12%, var(--bg-tint) 88%, transparent);
}

.section-head { margin-bottom: clamp(32px, 4vw, 48px); max-width: 720px; }
.section-kicker {
    margin-bottom: 10px;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent);
}
.section-title {
    font-size: clamp(1.8rem, 1.3rem + 1.8vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.025em;
}
.section-sub {
    margin-top: 14px;
    color: var(--text-muted);
    font-size: 17px;
}

/* About */

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: start;
}
.prose p {
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1.75;
}
.prose p + p { margin-top: 18px; }

.focus-card { padding: 24px; }
.focus-list li {
    position: relative;
    padding: 11px 0 11px 22px;
    font-weight: 500;
}
.focus-list li + li { border-top: 1px dashed var(--border); }
.focus-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    border-radius: 2px;
    background: var(--accent);
    transform: rotate(45deg);
}

/* Experience timeline */

.timeline {
    position: relative;
    display: grid;
    gap: 20px;
    padding-left: 32px;
}
.timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    border-radius: 2px;
    background: linear-gradient(to bottom, var(--accent-line), var(--border));
}
.timeline-item { position: relative; }
.timeline-dot {
    position: absolute;
    left: -32px;
    top: 28px;
    width: 16px;
    height: 16px;
    border: 2px solid var(--accent-line);
    border-radius: 50%;
    background: var(--bg);
}
.timeline-item.is-current .timeline-dot {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 0 5px var(--accent-soft);
}

.job { padding: 24px clamp(20px, 3vw, 28px); }
.job:hover { border-color: var(--border-strong); }
.job-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px 20px;
    margin-bottom: 14px;
}
.job-role { font-size: 19px; }
.job-org { margin-top: 4px; color: var(--text-muted); font-size: 15px; }
.sep { margin: 0 6px; color: var(--text-faint); }
.job-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}
.job-dates {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-faint);
    white-space: nowrap;
}
.job-points {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
}
.job-points li {
    position: relative;
    padding-left: 20px;
    color: var(--text-muted);
}
.job-points li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: .72em;
    width: 8px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
}

/* Research */

.pub-year {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 24px;
}
.pub-year + .pub-year { margin-top: 40px; }
.year-label {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-faint);
}
.pub-list { display: grid; gap: 16px; }

.pub { padding: 22px clamp(20px, 3vw, 28px); }
.pub:hover { border-color: var(--accent-line); box-shadow: var(--shadow-hover); }
.pub-award { border-color: var(--gold-line); }
.pub-award:hover { border-color: var(--gold); }
.pub-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}
.pub-title {
    font-size: clamp(17px, 1rem + .3vw, 19.5px);
    line-height: 1.35;
}
.pub-summary {
    margin-top: 10px;
    color: var(--text-muted);
    font-size: 15.5px;
}
.pub-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

/* Projects */

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.project {
    display: flex;
    flex-direction: column;
    padding: 24px;
}
.project:hover {
    transform: translateY(-3px);
    border-color: var(--accent-line);
    box-shadow: var(--shadow-hover);
}
.project-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 18px;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
}
.project-icon .icon { width: 22px; height: 22px; }
.project-title { font-size: 19px; }
.project-sub {
    margin-top: 4px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
}
.project-desc {
    margin: 12px 0 16px;
    color: var(--text-muted);
    font-size: 15px;
}
.project .tags { margin-top: auto; }
.project-foot {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.muted-note {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-faint);
}
.more-link {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

/* Skills */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}
.skill-group { padding: 24px; }

/* Education */

.edu-list { display: grid; gap: 12px; }
.edu {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 24px;
    padding: 20px clamp(20px, 3vw, 28px);
}
.edu:hover { border-color: var(--border-strong); }
.edu-degree { font-size: 18px; }
.edu-school { margin-top: 3px; color: var(--text-muted); }
.edu-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}
.edu-dates {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-faint);
}

.cred-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    margin-top: 24px;
}
.score-stack { display: grid; gap: 16px; align-content: start; }
.score, .activities { padding: 22px 24px; }
.score-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}
.score-name { font-size: 18px; }
.score-date { margin-top: 2px; color: var(--text-faint); font-size: 13.5px; }
.score-total {
    color: var(--text-faint);
    font-size: 13px;
    text-align: right;
    line-height: 1.1;
}
.score-total span {
    display: block;
    font-family: var(--font-display);
    font-size: 30px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}
.score-parts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
}
.score-parts-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.score-parts > div {
    display: flex;
    flex-direction: column-reverse;
    padding: 10px 8px;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    text-align: center;
}
.score-parts dt { color: var(--text-faint); font-size: 12px; }
.score-parts dd {
    margin: 0;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
}

.activity-list li {
    position: relative;
    padding: 8px 0 8px 18px;
    color: var(--text-muted);
    font-size: 14.5px;
    line-height: 1.5;
}
.activity-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 16px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}
.activity-list li:first-child::before { background: var(--gold); }

/* Contact */

.contact-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(28px, 5vw, 56px);
    padding: clamp(24px, 5vw, 56px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(480px 300px at 0% 0%, var(--accent-soft), transparent 70%),
        var(--surface);
    box-shadow: var(--shadow);
}
.contact-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.copy-btn .icon-check { display: none; color: var(--accent); }
.copy-btn.is-copied .icon-copy { display: none; }
.copy-btn.is-copied .icon-check { display: inline-block; }

.contact-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; align-content: start; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    transition: border-color .2s ease, background-color .2s ease;
}
a.contact-item:hover { border-color: var(--accent-line); background: var(--surface-2); }
.contact-icon {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    flex: none;
    border-radius: 10px;
    background: var(--accent-soft);
    color: var(--accent);
}
.contact-text { display: flex; flex-direction: column; min-width: 0; }
.contact-label {
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-faint);
}
.contact-value {
    overflow-wrap: anywhere;
    font-weight: 500;
    line-height: 1.4;
}
.contact-arrow {
    margin-left: auto;
    color: var(--text-faint);
    transition: transform .2s var(--ease), color .2s ease;
}
a.contact-item:hover .contact-arrow { color: var(--accent); transform: translate(2px, -2px); }

/* Footer */

.site-footer {
    padding: 28px 0 36px;
    border-top: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 14px;
}
.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 24px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.footer-links a,
.back-to-top {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
    color: var(--text-muted);
    transition: color .2s ease;
}
.footer-links a:hover,
.back-to-top:hover { color: var(--accent); }

/* Toast */

.toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    z-index: 80;
    max-width: calc(100vw - 32px);
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--toast-bg);
    color: var(--toast-ink);
    font-weight: 500;
    font-size: 14.5px;
    box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .45);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 12px);
    transition: opacity .2s ease, transform .25s var(--ease), visibility 0s linear .25s;
}
.toast.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
    transition: opacity .2s ease, transform .25s var(--ease), visibility 0s;
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
    .hero-grid { grid-template-columns: minmax(0, 1fr); }
    .hero-portrait { order: -1; width: min(100%, 300px); justify-self: start; }
    .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .stat:nth-child(3) { border-left: 0; }
    .stat:nth-child(n + 3) { border-top: 1px solid var(--border); }
    .about-grid,
    .contact-card { grid-template-columns: minmax(0, 1fr); }
    .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .pub-year { grid-template-columns: minmax(0, 1fr); gap: 12px; }
    .year-label { position: static; font-size: 22px; }
    .skills-grid,
    .project-grid,
    .cred-grid { grid-template-columns: minmax(0, 1fr); }
    .prose p { font-size: 17px; }
}

@media (max-width: 560px) {
    .hero-portrait { width: 160px; }
    .portrait-frame { padding: 6px; border-radius: 22px; }
    .portrait-frame img { border-radius: 16px; }
    .hero-cta .btn { flex: 1 1 auto; }
    .hero-cta .btn-link { flex: 0 0 100%; justify-content: flex-start; padding-left: 4px; }
    .stat { padding: 18px; }
    .timeline { padding-left: 24px; }
    .timeline::before { left: 5px; }
    .timeline-dot { left: -24px; width: 14px; height: 14px; }
    .score-parts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .score-parts-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 340px) {
    .brand-name { display: none; }
}

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    .js .reveal { opacity: 1; transform: none; }
}

@media print {
    .site-header, .hero-bg, .toast, .skip-link, .social-row, .hero-cta, .more-link, .contact-cta { display: none !important; }
    .js .reveal { opacity: 1; transform: none; }
    body { background: #fff; color: #000; }
}