/* =========================================================
   RESET + TOKENS
   ========================================================= */

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

:root {
    --bg: #f7f6f2;
    --surface: #ffffff;
    --ink: #1c1717;
    --ink-2: #4a4a46;
    --ink-3: #9a9a94;
    --rule: #e3e2dc;

    --accent: #6f5257;
    --accent-muted: #f2e4dc;
    --accent-text: #8a3e22;

    --serif: "DM Serif Display", Georgia, serif;
    --sans: "DM Sans", system-ui, sans-serif;
    --mono: "DM Mono", "Courier New", monospace;

    --max: 1100px;
    --gap: clamp(1rem, 4vw, 2rem);
    --section-py: clamp(3.5rem, 7vw, 6rem);
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    width: 100%;
    max-width: 100%;
}

.container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gap);
}

section {
    padding: var(--section-py) 0;
}

/* =========================================================
   CURSOR
   ========================================================= */

.cursor {
    width: 12px;
    height: 12px;
    border: 1.5px solid var(--ink);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease;
    transform: translate(-50%, -50%);
    mix-blend-mode: multiply;
}

/* =========================================================
   NAV
   ========================================================= */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: color-mix(in srgb, var(--bg) 90%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

nav.scrolled {
    border-color: var(--rule);
}

.nav-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gap);
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--ink);
}

.nav-logo-suffix {
    opacity: 0.35;
}

.nav-back {
    font-size: 13px;
    color: var(--ink-2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s, gap 0.2s;
}

.nav-back:hover {
    color: var(--ink);
    gap: 10px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}


/* LANGUAGE SWITCH */

.lang-switch {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-3);
}

.lang-switch a {
    color: var(--ink-3);
    transition: color 0.15s;
}

.lang-switch a:hover,
.lang-switch a.active {
    color: var(--ink);
}
/* =========================================================
   PROJECT HEADER
   ========================================================= */

#project-header {
    padding-top: calc(56px + clamp(2rem, 4vw, 3rem));
    padding-bottom: clamp(2rem, 4vw, 3rem);
}

.project-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 100px;
    margin-bottom: 1rem;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-2);
}

.project-meta-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.project-title {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.project-desc {
    font-size: 1.05rem;
    color: var(--ink-2);
    line-height: 1.65;
    max-width: 680px;
    margin-bottom: 2rem;
    font-weight: 300;
}

.project-header-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: start;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    max-width: 560px;
}

.tech-tag {
    font-family: var(--mono);
    font-size: 11px;
    padding: 5px 12px;
    border-radius: 6px;
    border: 1px solid var(--rule);
    background: var(--surface);
    color: var(--ink-2);
}

.project-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 170px;
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--rule);
    border-radius: 8px;
    font-size: 13px;
    transition: border-color 0.15s, transform 0.15s;
}

.project-link:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.project-link-label {
    font-weight: 500;
}

.project-link-icon {
    color: var(--ink-3);
    font-size: 11px;
}

/* =========================================================
   CAROUSEL
   ========================================================= */

#carousel-section {
    padding: var(--section-py) 0;
    background: var(--surface);
}

.carousel-wrapper {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gap);
}

.carousel-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--rule);
    aspect-ratio: 16 / 9;
    box-shadow: 0 12px 48px rgba(14, 14, 13, 0.08);
}

.carousel-slides {
    display: flex;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
}

.carousel-slide img, video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: top center;
}

.carousel-single {
    width: 100%;
    height: 100%;
}

.carousel-single img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* keeps your 16:9 look */
    border-radius: inherit; /* matches your existing styling */
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(28, 23, 23, 0.42);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s, border-color 0.2s;
    z-index: 5;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.carousel-btn:hover {
    background: rgba(28, 23, 23, 0.62);
    border-color: rgba(255, 255, 255, 0.5);
}

.carousel-btn-prev {
    left: 1rem;
}

.carousel-btn-next {
    right: 1rem;
}

.carousel-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 1rem;
}

.carousel-thumb {
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    background: var(--ink-3);
    cursor: pointer;
    opacity: 0.55;
    transition: border-color 0.2s, opacity 0.2s, transform 0.15s;
    padding: 0;
}

.carousel-thumb:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.carousel-thumb.active {
    border-color: var(--accent);
    opacity: 1;
}

.carousel-thumb img {
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

/* =========================================================
   SECTIONS
   ========================================================= */

.section-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(1.75rem, 3.5vw, 2.3rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

/* =========================================================
   FEATURES
   ========================================================= */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 10px;
    padding: 1.5rem;
}

.feature-title {
    font-family: var(--serif);
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.feature-desc {
    font-size: 13.5px;
    color: var(--ink-2);
    line-height: 1.6;
}

/* =========================================================
   TECH
   ========================================================= */

#tech {
    background: var(--surface);
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    align-items: start;
}

.tech-content p {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.tech-stack-detail {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tech-group-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 0.75rem;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-item {
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 6px;
    background: var(--bg);
    border: 1px solid var(--rule);
    color: var(--ink-2);
}

/* =========================================================
   LEARNINGS
   ========================================================= */

.learnings-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 760px;
}

.learning-item {
    background: var(--surface);
    border-left: 3px solid var(--accent);
    padding: 1.25rem 1.5rem;
    border-radius: 8px;
}

.learning-title {
    font-family: var(--serif);
    font-size: 1.1rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.learning-text {
    font-size: 14px;
    color: var(--ink-2);
    line-height: 1.65;
}

/* =========================================================
   FOOTER
   ========================================================= */

footer {
    padding: 2rem 0;
    border-top: 1px solid var(--rule);
}

.footer-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--gap);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-back {
    font-size: 13px;
    color: var(--ink-2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s, gap 0.2s;
}

.footer-back:hover {
    color: var(--ink);
    gap: 10px;
}

.footer-credits {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-3);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 768px) {
    .cursor {
        display: none;
    }

    .project-header-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-links {
        flex-direction: row;
        min-width: auto;
    }

    .carousel-thumbnails {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .carousel-btn {
        width: 38px;
        height: 38px;
    }
}