:root {
    --bg: #09090b;
    --panel: #111114;
    --panel-2: #18181b;
    --border: #27272a;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --muted-2: #71717a;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, Arial, Helvetica, sans-serif;
}

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

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

button {
    font: inherit;
}

.site-wrap {
    max-width: 1360px;
    margin: 0 auto;
    padding: 24px 20px 64px;
}

/* ================= HEADER ================= */

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 32px;
    padding-bottom: 28px;
    margin-bottom: 44px;
    border-bottom: 1px solid var(--border);
}

.site-header > div {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.logo {
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.logo-image {
    display: block;
    height: 72px;
    width: auto;
    object-fit: contain;
    opacity: 0.92;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.logo:hover .logo-image,
.logo:focus-visible .logo-image {
    opacity: 1;
    transform: translateY(-1px);
}

.tagline {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.5;
    letter-spacing: 0.01em;
}

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

.nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 0.95rem;
    padding-top: 4px;
}

.nav a:hover,
.nav a:focus-visible {
    color: var(--text);
}

/* ================= INTRO ================= */

.intro {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 24px;
    margin-bottom: 28px;
}

.intro h1,
.about-page h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 300;
}

.intro p,
.about-page p {
    color: var(--muted);
    max-width: 760px;
    line-height: 1.7;
}

/* ================= FILTERS ================= */

.filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    border: 1px solid var(--border);
    background: var(--panel);
    color: #d4d4d8;
    padding: 10px 16px;
    border-radius: 999px;
    cursor: pointer;
    text-transform: capitalize;
    transition: 0.2s ease;
}

.filter-btn:hover,
.filter-btn:focus-visible {
    border-color: #52525b;
    color: var(--text);
}

.filter-btn.active {
    background: #f4f4f5;
    color: #09090b;
    border-color: #f4f4f5;
}

/* ================= GRID ================= */

.grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}

/* ================= CARD ================= */

.track-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.track-card:hover {
    transform: translateY(-4px);
    border-color: #52525b;
}

.track-card-large {
    grid-column: span 2;
}

.track-trigger {
    display: block;
    width: 100%;
    border: 0;
    background: transparent;
    color: inherit;
    padding: 0;
    text-align: left;
    cursor: pointer;
}

/* ================= IMAGE ================= */

.track-image-wrap {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #0f0f12;
}

.track-card-large .track-image-wrap {
    aspect-ratio: 1 / 1;
}

.track-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.track-card:hover .track-image {
    transform: scale(1.04);
}

.track-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(9, 9, 11, 0.96) 0%,
        rgba(9, 9, 11, 0.55) 28%,
        rgba(9, 9, 11, 0.12) 55%,
        transparent 100%
    );
}

/* ================= CONTENT ================= */

.track-content {
    position: relative;
    margin-top: -92px;
    padding: 0 18px 18px;
    z-index: 2;
}

.track-meta {
    display: flex;
    gap: 8px;
    color: var(--muted);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    margin-bottom: 8px;
}

.track-content h2 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 300;
    line-height: 1.15;
}

.track-content p {
    margin: 8px 0 0;
    color: #d4d4d8;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* ================= ABOUT ================= */

.about-page {
    max-width: 820px;
}

/* ================= MODAL ================= */

.modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1000;
}

.modal.is-open {
    display: block;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(8px);
}

.modal-panel {
    position: relative;
    max-width: 1100px;
    margin: 40px auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 32px;
    overflow: hidden;
    z-index: 2;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 3;
    border: 1px solid #52525b;
    background: rgba(9, 9, 11, 0.92);
    color: #d4d4d8;
    border-radius: 999px;
    padding: 8px 14px;
    cursor: pointer;
}

/* ================= MODAL GRID ================= */

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 560px;
}

.modal-image-wrap {
    background: #0f0f12;
}

.modal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 32px;
    gap: 24px;
}

.modal-meta {
    color: var(--muted-2);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    margin-bottom: 12px;
}

.modal-body h2 {
    margin: 0;
    font-size: 2.3rem;
    font-weight: 300;
}

.modal-body p {
    color: var(--muted);
    line-height: 1.8;
}

.player-wrap {
    background: rgba(24, 24, 27, 0.7);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 16px;
}

.player-wrap audio {
    width: 100%;
}

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

@media (max-width: 1180px) {
    .grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .track-card-large {
        grid-column: span 1;
    }

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

    .modal-panel {
        margin: 20px;
    }
}

@media (max-width: 720px) {
    .site-header,
    .intro {
        flex-direction: column;
        align-items: flex-start;
    }

    .logo-image {
        height: 64px;
    }

    .tagline {
        font-size: 0.88rem;
    }

    .grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
    }

    .track-content {
        margin-top: -82px;
        padding: 0 14px 14px;
    }

    .track-meta {
        font-size: 0.62rem;
        letter-spacing: 0.18em;
    }

    .track-content h2 {
        font-size: 1.1rem;
    }

    .track-content p {
        font-size: 0.88rem;
        line-height: 1.4;
    }

    .modal-body {
        padding: 24px;
    }

    .modal-body h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 520px) {
    .grid {
        grid-template-columns: 1fr;
    }
}