:root {
    --bg: #f5f4ef;
    --bg-alt: #ede9df;
    --surface: #ffffff;
    --ink: #1c232b;
    --ink-muted: #5d6672;
    --accent: #eb5e28;
    --accent-strong: #d94f1b;
    --accent-soft: #ffd3c2;
    --teal: #2a9d8f;
    --teal-soft: #b9ece6;
    --border: rgba(28, 35, 43, 0.12);
    --shadow-soft: 0 14px 35px rgba(28, 35, 43, 0.10);
    --shadow-strong: 0 24px 48px rgba(28, 35, 43, 0.16);
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --container: 1140px;
}

[data-theme="dark"] {
    --bg: #121417;
    --bg-alt: #1a1e23;
    --surface: #1f252c;
    --ink: #f0f2f4;
    --ink-muted: #c0c9d3;
    --accent: #ff8e61;
    --accent-strong: #ff7745;
    --accent-soft: rgba(255, 142, 97, 0.2);
    --teal: #63d4c4;
    --teal-soft: rgba(99, 212, 196, 0.2);
    --border: rgba(240, 242, 244, 0.12);
    --shadow-soft: 0 14px 32px rgba(0, 0, 0, 0.32);
    --shadow-strong: 0 26px 54px rgba(0, 0, 0, 0.45);
}

body {
    background: radial-gradient(circle at 12% 8%, rgba(235, 94, 40, 0.14), transparent 42%),
                radial-gradient(circle at 88% 0%, rgba(42, 157, 143, 0.16), transparent 45%),
                var(--bg);
    color: var(--ink);
    font-family: "Sora", "Segoe UI", sans-serif;
    line-height: 1.65;
    min-height: 100vh;
    position: relative;
}

a {
    color: inherit;
}

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

.container {
    width: min(var(--container), 92vw);
    margin: 0 auto;
}

.section-pad {
    padding: 6.5rem 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.9rem;
}

.section-head {
    max-width: 760px;
    margin-bottom: 2.4rem;
}

.section-head h2 {
    font-size: clamp(1.8rem, 2.7vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 0.8rem;
}

.section-head p {
    color: var(--ink-muted);
}

.bg-orb {
    position: fixed;
    width: 460px;
    height: 460px;
    border-radius: 50%;
    filter: blur(28px);
    opacity: 0.58;
    z-index: 0;
    pointer-events: none;
}

.orb-one {
    top: -180px;
    left: -160px;
    background: radial-gradient(circle, var(--accent-soft), transparent 65%);
}

.orb-two {
    right: -180px;
    top: 220px;
    background: radial-gradient(circle, var(--teal-soft), transparent 65%);
}

.noise-layer {
    position: fixed;
    inset: 0;
    background-image: radial-gradient(rgba(0, 0, 0, 0.06) 0.4px, transparent 0.4px);
    background-size: 3px 3px;
    opacity: 0.05;
    pointer-events: none;
    z-index: 1;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--teal));
    z-index: 999;
    transition: width 0.15s ease;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 150;
    backdrop-filter: blur(12px);
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    border-bottom: 1px solid var(--border);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 1.2rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    display: inline-grid;
    place-items: center;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.82rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(145deg, var(--accent), var(--teal));
    box-shadow: var(--shadow-soft);
}

.brand-copy {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.main-nav ul {
    display: flex;
    gap: 1rem;
}

.nav-link {
    font-size: 0.93rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--ink-muted);
    padding: 0.48rem 0.78rem;
    border-radius: 999px;
    transition: background 0.25s ease, color 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.72rem;
}

.class-only-mobile {
    display: none;
}

.class-menu {
    position: relative;
}

.class-menu-btn {
    min-height: 40px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink);
    padding: 0 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.class-menu-btn:hover,
.class-menu.open .class-menu-btn {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.class-menu-panel {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    width: min(300px, 82vw);
    padding: 0.85rem;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-strong);
    display: grid;
    gap: 0.4rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 220;
}

.class-menu.open .class-menu-panel {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.class-menu-title {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-strong);
    padding: 0.25rem 0.45rem 0.35rem;
}

.class-menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    padding: 0.72rem 0.8rem;
    text-decoration: none;
    border-radius: var(--radius-md);
    color: var(--ink);
    transition: background 0.2s ease, transform 0.2s ease;
}

.class-menu-link:hover {
    background: color-mix(in srgb, var(--accent-soft) 58%, var(--surface));
    transform: translateY(-1px);
}

.class-menu-tag {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-muted);
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.icon-btn:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.language-selector {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.2rem;
    display: inline-flex;
    gap: 0.25rem;
}

.lang-btn {
    border: none;
    background: transparent;
    color: var(--ink-muted);
    border-radius: 999px;
    min-width: 36px;
    min-height: 32px;
    font-weight: 700;
    font-size: 0.75rem;
    cursor: pointer;
}

.lang-btn.active {
    background: var(--ink);
    color: var(--surface);
}

.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
    color: var(--ink);
}

.hero {
    padding-top: 5.4rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: start;
}

.hero-copy h1 {
    font-size: clamp(2rem, 4vw, 3.6rem);
    line-height: 1.08;
    margin-bottom: 1.1rem;
    max-width: 16ch;
}

.hero-copy h1 span {
    color: var(--accent);
    position: relative;
}

.hero-copy h1 span::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0.08em;
    width: 100%;
    height: 0.22em;
    background: color-mix(in srgb, var(--teal) 38%, transparent);
    z-index: -1;
    border-radius: 999px;
}

.hero-summary {
    color: var(--ink-muted);
    max-width: 58ch;
    margin-bottom: 1.5rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.btn {
    border: 1px solid transparent;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.68rem 1.1rem;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn.primary {
    background: linear-gradient(130deg, var(--accent), var(--teal));
    color: #fff;
    box-shadow: var(--shadow-soft);
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
}

.btn.ghost {
    background: var(--surface);
    border-color: var(--border);
    color: var(--ink);
}

.btn.ghost:hover {
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
    transform: translateY(-2px);
}

.hero-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.3rem;
    box-shadow: var(--shadow-soft);
}

.hero-panel h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--ink-muted);
}

.metric-grid {
    display: grid;
    gap: 0.9rem;
}

.metric-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    background: linear-gradient(150deg, color-mix(in srgb, var(--surface) 60%, var(--bg-alt)), var(--surface));
}

.metric-value {
    font-family: "Space Grotesk", sans-serif;
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 0.45rem;
    color: var(--accent-strong);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.now-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.now-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.15rem;
    box-shadow: var(--shadow-soft);
}

.now-card i {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.now-card h3 {
    font-size: 1rem;
    margin-bottom: 0.45rem;
}

.now-card p {
    font-size: 0.9rem;
    color: var(--ink-muted);
}

.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 1.4rem;
}

.filter-btn {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink-muted);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--ink);
    color: var(--surface);
    transform: translateY(-1px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    min-height: 100%;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-strong);
}

.project-card.is-hidden {
    display: none;
}

.project-media {
    position: relative;
    height: 190px;
    overflow: hidden;
}

.project-media img,
.project-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gradient-media {
    background: linear-gradient(125deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 30%, var(--teal)) 52%, var(--teal) 100%);
}

.chip {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    color: #1b1b1b;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.68rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 0.35rem 0.52rem;
}

.project-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-body h3 {
    font-size: 1.06rem;
    line-height: 1.28;
    margin-bottom: 0.55rem;
}

.project-body p {
    color: var(--ink-muted);
    font-size: 0.9rem;
    margin-bottom: 0.9rem;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 1rem;
}

.tag-row span {
    font-size: 0.72rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.28rem 0.58rem;
    color: var(--ink-muted);
}

.project-open {
    margin-top: auto;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--accent-strong);
    border-radius: 999px;
    padding: 0.55rem 0.9rem;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    text-align: left;
}

.project-open:hover {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.timeline {
    position: relative;
    margin-left: 0.5rem;
    padding-left: 1.6rem;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 0.28rem;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 2px;
    background: linear-gradient(var(--accent), var(--teal));
}

.timeline-item {
    position: relative;
    margin-bottom: 1.25rem;
}

.timeline-dot {
    position: absolute;
    left: -1.56rem;
    top: 1.1rem;
    width: 0.72rem;
    height: 0.72rem;
    border-radius: 50%;
    background: var(--surface);
    border: 2px solid var(--accent);
}

.timeline-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
    box-shadow: var(--shadow-soft);
}

.timeline-date {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.74rem;
    letter-spacing: 0.06em;
    color: var(--accent-strong);
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

.timeline-card h3 {
    font-size: 1.05rem;
}

.timeline-org {
    color: var(--ink-muted);
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
}

.timeline-card ul {
    display: grid;
    gap: 0.35rem;
    padding-left: 1rem;
}

.timeline-card li {
    list-style: disc;
    color: var(--ink-muted);
    font-size: 0.9rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.skill-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.1rem;
    box-shadow: var(--shadow-soft);
}

.skill-card h3 {
    font-size: 1rem;
    margin-bottom: 0.45rem;
}

.skill-card p {
    font-size: 0.9rem;
    color: var(--ink-muted);
    margin-bottom: 0.9rem;
}

.skill-meter {
    height: 11px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--ink) 8%, transparent);
    overflow: hidden;
    border: 1px solid var(--border);
}

.skill-meter span {
    display: block;
    width: var(--meter, 70%);
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--teal));
}

.contact-shell {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.3rem;
    box-shadow: var(--shadow-soft);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.contact-info p,
.contact-info li {
    color: var(--ink-muted);
}

.contact-info ul {
    display: grid;
    gap: 0.45rem;
    margin: 0.9rem 0 1rem;
}

.contact-info strong {
    color: var(--ink);
}

.contact-info a {
    color: var(--accent-strong);
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.contact-form {
    display: grid;
    gap: 0.7rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface) 70%, var(--bg-alt));
    color: var(--ink);
    border-radius: var(--radius-sm);
    padding: 0.75rem 0.85rem;
    font-family: "Sora", sans-serif;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
    outline-offset: 1px;
}

footer {
    padding: 1.5rem 0 2rem;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 2;
}

.footer-shell {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--ink-muted);
    font-size: 0.84rem;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: grid;
    place-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(16, 22, 30, 0.55);
}

.modal-panel {
    position: relative;
    width: min(700px, 92vw);
    max-height: 86vh;
    overflow: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-strong);
    z-index: 1;
}

.modal-close {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
    width: 36px;
    height: 36px;
    border-radius: 11px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--ink);
    cursor: pointer;
}

.modal-kicker {
    font-family: "JetBrains Mono", monospace;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.7rem;
    color: var(--accent-strong);
    margin-bottom: 0.35rem;
}

.modal-panel h3 {
    font-size: 1.4rem;
    margin-bottom: 0.65rem;
    padding-right: 2rem;
}

.modal-panel p,
.modal-panel li {
    color: var(--ink-muted);
}

.modal-block {
    margin-top: 1rem;
}

.modal-block h4 {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

#modal-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

#modal-stack li {
    border: 1px solid var(--border);
    background: var(--bg-alt);
    color: var(--ink);
    border-radius: 999px;
    font-size: 0.74rem;
    padding: 0.25rem 0.55rem;
}

.modal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1.2rem;
}

.modal-links a {
    text-decoration: none;
}

.toast {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    background: var(--ink);
    color: var(--surface);
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    font-size: 0.78rem;
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 320;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    border: 0;
    padding: 0;
    clip: rect(0 0 0 0);
    overflow: hidden;
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1060px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .now-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 780px) {
    .section-pad {
        padding: 5rem 0;
    }

    .main-nav {
        position: fixed;
        top: 76px;
        right: 1rem;
        width: min(320px, 86vw);
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 18px;
        box-shadow: var(--shadow-strong);
        padding: 0.85rem;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-6px);
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    body.nav-open .main-nav {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0.4rem;
    }

    .class-only-mobile {
        display: list-item;
    }

    .mobile-menu-btn {
        display: inline-grid;
        place-items: center;
    }

    .class-menu {
        display: none;
    }

    .brand-copy {
        display: none;
    }

    .projects-grid,
    .skills-grid,
    .contact-shell,
    .now-grid {
        grid-template-columns: 1fr;
    }

    .footer-shell {
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .nav-actions {
        gap: 0.45rem;
    }

    .hero-copy h1 {
        max-width: none;
    }

    .contact-actions .btn {
        width: 100%;
        justify-content: center;
    }
}