:root {
    --primary-color: #4d9fff;
    --secondary-color: #ffffff;
    --secondary-dim: #d8e9ff;
    --surface: #0e0e0f;
    --surface-container-low: #131314;
    --surface-container: #1a191b;
    --surface-container-high: #201f21;
    --surface-container-highest: #262627;
    --surface-container-lowest: #000000;
    --on-surface: #ffffff;
    --on-surface-variant: #adaaab;
    --on-primary: #04101d;
    --outline-variant: #484849;
    --outline: #767576;
    --bg-main: var(--surface);
    --bg-alt: var(--surface-container-low);
    --ink: var(--on-surface);
    --muted: var(--on-surface-variant);
    --line: rgba(72, 72, 73, 0.7);
    --card: rgba(26, 25, 27, 0.9);
    --card-hover: rgba(32, 31, 33, 0.96);
    --accent: var(--primary-color);
    --accent-deep: #3b82d6;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    min-height: 100%;
    width: 100%;
    overflow-x: clip;
    overscroll-behavior-x: none;
}

html {
    background-color: var(--surface);
    overscroll-behavior-y: none;
}

body {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background-color: var(--surface);
    color: var(--ink);
    font-family: "Manrope", sans-serif;
    background:
        radial-gradient(circle at 14% 18%, rgba(77, 159, 255, 0.12), transparent 28%),
        radial-gradient(circle at 88% 0%, rgba(255, 255, 255, 0.08), transparent 30%),
        linear-gradient(150deg, var(--bg-main), var(--bg-alt));
    line-height: 1.6;
    position: relative;
    overflow-x: clip;
    overscroll-behavior-y: none;
}

.bg-noise {
    pointer-events: none;
    position: fixed;
    inset: 0;
    opacity: 0.22;
    background-image: repeating-linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.02) 0,
        rgba(255, 255, 255, 0.02) 1px,
        transparent 1px,
        transparent 10px
    );
}

.site-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    background: rgba(14, 14, 15, 0.9);
    box-shadow: 0 4px 20px rgba(77, 159, 255, 0.12);
}

.site-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1440px;
    margin: 0 auto;
}

.site-nav-links {
    display: inline-flex;
    justify-content: flex-end;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-left: auto;
}

.mobile-menu-button {
    display: none;
    margin-left: auto;
    height: 2.5rem;
    width: 2.5rem;
    align-items: center;
    justify-content: center;
    border: 0;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

.mobile-menu-button:hover { color: var(--accent); }

.mobile-menu-button .material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    font-size: 1.5rem;
    line-height: 1;
}

.mobile-menu {
    display: block;
    border-top: 1px solid rgba(72, 72, 73, 0.2);
    background: rgba(14, 14, 15, 0.95);
    backdrop-filter: blur(4px);
    padding: 1.25rem 2rem;
}

.mobile-menu.hidden { display: none; }

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.site-nav a,
.mobile-menu a {
    color: var(--muted);
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    transition: color 0.3s ease-out;
}

.site-nav a.active-link,
.mobile-menu a.active-link {
    border-bottom: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

.site-nav a:not(.active-link):hover,
.mobile-menu a:not(.active-link):hover {
    color: var(--accent);
}

main {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 7rem 0 4rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    box-sizing: border-box;
}

.page-header {
    animation: heroIn 0.8s ease-out both;
}

.eyebrow {
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
}

.page-header h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.8rem, 5vw, 3.2rem);
    line-height: 1;
    margin: 0 0 0.6rem;
    letter-spacing: 0.02em;
}

.accent { color: var(--accent); }

.header-copy {
    margin: 0;
    color: var(--muted);
    max-width: 64ch;
    font-size: 1.05rem;
}

.side-by-side {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.panel {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 2rem;
    animation: cardRise 0.6s ease-out both;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1.75rem;
}

.panel-icon {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    font-size: 1.75rem;
    color: var(--accent);
    line-height: 1;
    margin-top: 0.1rem;
}

.panel-header h2 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.15rem;
    letter-spacing: 0.06em;
    margin: 0 0 0.2rem;
}

.panel-sub {
    margin: 0;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--muted);
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-fields {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.field { display: flex; flex-direction: column; gap: 0.45rem; }

.field-label {
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--muted);
}

.field-input {
    background: var(--surface-container-highest);
    border: 1px solid var(--outline-variant);
    color: var(--ink);
    padding: 0.75rem 1rem;
    font-family: "Manrope", sans-serif;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}

.field-input:focus { border-color: var(--accent); }
.field-input::placeholder { color: var(--muted); opacity: 0.7; }

.drop-zone {
    border: 2px dashed var(--outline-variant);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    background: rgba(14, 14, 15, 0.5);
    transition: border-color 0.2s, background 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.drop-zone:hover, .drop-zone.active {
    border-color: var(--accent);
    background: rgba(77, 159, 255, 0.05);
}

.drop-icon {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 48;
    font-size: 2.5rem;
    color: var(--muted);
}

.drop-text {
    margin: 0;
    color: var(--muted);
    font-size: 0.875rem;
}

.drop-text.selected { color: var(--accent); }

.hidden-input { display: none; }

.form-actions {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 0.75rem;
}

.btn-primary-full {
    width: 100%;
    background: var(--accent);
    color: var(--on-primary);
    border: none;
    padding: 1rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
}

.btn-primary-full:hover {
    background: var(--accent-deep);
    box-shadow: 0 0 20px rgba(77, 159, 255, 0.3);
}

.btn-primary-full:active { transform: scale(0.98); }
.btn-primary-full:disabled { opacity: 0.6; cursor: not-allowed; }

.progress-container {
    width: 100%;
    background: var(--surface-container-highest);
    border: 1px solid var(--outline-variant);
    height: 24px;
    position: relative;
    overflow: hidden;
}

.progress-container.hidden { display: none; }

.progress-bar {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width 0.1s linear;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--on-surface);
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
    pointer-events: none;
}

.upload-status {
    padding: 0.75rem 1rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid currentColor;
}

.upload-status.hidden { display: none; }
.upload-status.success { color: #4CAF50; background: rgba(76, 175, 80, 0.08); }
.upload-status.error   { color: #ff716c; background: rgba(255, 113, 108, 0.08); }

.gallery-section {
    animation: cardRise 0.65s ease-out 0.1s both;
    min-width: 0;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.5rem;
}

.gallery-header h2 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.35rem;
    letter-spacing: 0.05em;
    margin: 0 0 0.5rem;
}

.underline-bar {
    height: 3px;
    width: 3.5rem;
    background: var(--accent);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: 1px solid var(--outline-variant);
    color: var(--muted);
    padding: 0.45rem 0.9rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}

.btn-ghost .material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    font-size: 1.1rem;
}

.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

.music-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    height: 425px;
    overflow-y: auto;
    padding-right: 0.5rem;
    scrollbar-gutter: stable;
    align-content: start;
    grid-auto-rows: max-content;
}


.music-grid::-webkit-scrollbar {
    width: 5px;
}

.music-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
}

.music-grid::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

.music-grid::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

.skeleton {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    height: 12rem;
    animation: shimmer 1.5s ease-in-out infinite alternate;
}

@keyframes shimmer {
    from { opacity: 0.5; }
    to   { opacity: 1; }
}

.music-card {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 1rem 1.5rem;
    position: relative;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    animation: cardRise 0.5s ease-out both;
    min-width: 0;
}

.music-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--accent);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.music-card:hover {
    transform: translateY(-4px);
    border-color: rgba(77, 159, 255, 0.55);
    background: var(--card-hover);
}

.music-card:hover::before { transform: scaleY(1); }

.card-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
    min-width: 0;
}

.player-tag {
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.22em;
    display: block;
}

.music-card h3 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.audio-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.btn-play, .btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--surface-container-highest);
    color: var(--muted);
    border: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.btn-play .material-symbols-outlined,
.btn-download .material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    font-size: 1.2rem;
    line-height: 1;
}

.btn-play:hover, .btn-download:hover {
    background: var(--accent);
    color: var(--on-primary);
}

.btn-play.playing {
    background: var(--accent);
    color: var(--on-primary);
    animation: pulse 2s ease-in-out infinite;
}

.card-date {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-left: 0.5rem;
}

@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(77, 159, 255, 0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(77, 159, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(77, 159, 255, 0); }
}

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(4px);
}

.modal-overlay.hidden { display: none; }

.modal-box {
    background: var(--surface-container);
    border: 1px solid var(--line);
    padding: 2rem;
    width: min(440px, calc(100% - 2rem));
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.05rem;
    letter-spacing: 0.06em;
    margin: 0;
    text-transform: uppercase;
}

.modal-title .material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    color: var(--accent);
    font-size: 1.3rem;
    line-height: 1;
}

.modal-copy {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.modal-fields {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.modal-fields .field-input { flex: 1; min-width: 0; }

.btn-accent {
    background: var(--accent);
    color: var(--on-primary);
    border: none;
    padding: 0.75rem 1.25rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.btn-accent:hover { background: var(--accent-deep); }
.btn-accent:disabled { opacity: 0.6; cursor: not-allowed; }

.modal-error {
    margin: 0;
    font-size: 0.8rem;
    color: #ff716c;
    font-family: "Space Grotesk", sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.modal-error.hidden { display: none; }

.btn-text {
    background: transparent;
    border: none;
    color: var(--muted);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
    align-self: flex-start;
}

.btn-text:hover { color: var(--ink); }

.footer {
    border-top: 1px solid var(--line);
    margin-top: 1rem;
    padding: 1.3rem 1rem 2.2rem;
    text-align: center;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.66rem;
}

.footer p { margin: 0; }

@keyframes heroIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes cardRise {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

@media (max-width: 768px) {
    .site-nav-links { display: none; }
    .mobile-menu-button { display: inline-flex; }
}

@media (max-width: 640px) {
    main { width: min(1120px, calc(100% - 1.2rem)); }
    .site-nav-inner { padding: 1rem 1.2rem; }
    .music-grid { grid-template-columns: 1fr; }
    .gallery-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}