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

:root {
    --bg: #0d0f14;
    --surface: #14171f;
    --surface2: #1c202b;
    --border: rgba(255, 255, 255, 0.07);
    --border2: rgba(255, 255, 255, 0.13);
    --text: #e8eaf0;
    --muted: #5a6278;
    --muted2: #8892a4;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

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

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0;
    transition: opacity 1.2s ease, background 1.2s ease, transform 1.2s ease;
}

.blob1 {
    width: 600px;
    height: 600px;
    top: -200px;
    left: -200px;
}

.blob2 {
    width: 500px;
    height: 500px;
    bottom: -150px;
    right: -150px;
}

.blob3 {
    width: 300px;
    height: 300px;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
}

header {
    position: relative;
    z-index: 10;
    padding: 48px 48px 0;
    animation: fadeDown 0.6s ease both;
}

.logo {
    font-family: 'Syne', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted2);
}

.hero {
    position: relative;
    z-index: 10;
    padding: 56px 48px 48px;
    animation: fadeDown 0.6s 0.1s ease both;
}

.hero h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 16px;
}

.hero h1 span {
    color: var(--muted);
}

.hero p {
    font-size: 1rem;
    color: var(--muted2);
    max-width: 420px;
    line-height: 1.7;
    font-weight: 300;
}

.mood-section {
    position: relative;
    z-index: 10;
    padding: 0 48px 48px;
    animation: fadeDown 0.6s 0.2s ease both;
}

.mood-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.mood-btn {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 16px 18px;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.3s, background 0.3s, transform 0.15s;
    overflow: hidden;
}

.mood-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    opacity: 0;
    transition: opacity 0.4s;
}

.mood-btn:hover {
    transform: translateY(-3px);
    border-color: var(--border2);
}

.mood-btn:hover::before {
    opacity: 1;
}

.mood-btn.active {
    border-color: transparent;
    transform: translateY(-3px);
}

.mood-btn.active::before {
    opacity: 1;
}

.mood-icon-wrap {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    font-size: 18px;
    transition: transform 0.3s;
}

.mood-btn:hover .mood-icon-wrap {
    transform: scale(1.1);
}

.mood-btn.active .mood-icon-wrap {
    transform: scale(1.1);
}

.mood-label {
    font-family: 'Syne', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    display: block;
    margin-bottom: 4px;
}

.mood-sub {
    font-size: 11px;
    color: var(--muted);
    font-weight: 300;
    font-family: 'DM Mono', monospace;
}

.vibe-panel {
    position: relative;
    z-index: 10;
    margin: 0 48px 48px;
    background: var(--surface);
    border: 1px solid var(--border2);
    border-radius: 24px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease, margin 0.4s;
}

.vibe-panel.open {
    max-height: 1000px;
    opacity: 1;
    margin-bottom: 48px;
}

.vibe-inner {
    padding: 36px;
}

.vibe-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
    gap: 20px;
}

.vibe-genre-badge {
    display: inline-block;
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 30px;
    border: 1px solid var(--border2);
    color: var(--muted2);
    margin-bottom: 14px;
}

.vibe-name {
    font-family: 'Syne', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 8px;
}

.vibe-tagline {
    font-size: 0.95rem;
    color: var(--muted2);
    font-weight: 300;
}

.vibe-palette {
    display: flex;
    gap: 6px;
    align-items: center;
}

.palette-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.palette-dot:hover {
    transform: scale(1.2);
}

.vibe-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.stat-block {
    background: var(--surface2);
    border-radius: 14px;
    padding: 18px 20px;
    border: 1px solid var(--border);
}

.stat-label {
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
    display: block;
}

.stat-val {
    font-family: 'Syne', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.vibe-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.section-heading {
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}

.artist-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.artist-chip {
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 30px;
    border: 1px solid var(--border2);
    color: var(--muted2);
    background: var(--surface2);
    font-weight: 400;
    transition: color 0.2s, border-color 0.2s;
    cursor: default;
}

.artist-chip:hover {
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.3);
}

.track-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.track-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    transition: border-color 0.2s, transform 0.15s;
    cursor: default;
}

.track-row:hover {
    border-color: var(--border2);
    transform: translateX(4px);
}

.track-num {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--muted);
    min-width: 18px;
}

.track-info {
    flex: 1;
}

.track-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.3;
}

.track-artist {
    font-size: 11px;
    color: var(--muted2);
}

.track-dur {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--muted);
}

footer {
    position: relative;
    z-index: 10;
    padding: 0 48px 48px;
    text-align: center;
    font-size: 12px;
    color: var(--muted);
    font-family: 'DM Mono', monospace;
    animation: fadeDown 0.6s 0.3s ease both;
}

@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 900px) {

    header,
    .hero,
    .mood-section,
    .vibe-panel,
    footer {
        padding-left: 24px;
        padding-right: 24px;
    }

    .vibe-panel {
        margin-left: 24px;
        margin-right: 24px;
    }

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

    .vibe-body {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 500px) {
    .mood-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .vibe-stats {
        grid-template-columns: 1fr;
    }

    .vibe-name {
        font-size: 1.6rem;
    }

    header,
    .hero,
    .mood-section,
    .vibe-panel,
    footer {
        padding-left: 16px;
        padding-right: 16px;
    }

    .vibe-panel {
        margin-left: 16px;
        margin-right: 16px;
    }
}