/* Base Styles - Common to all brands */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Barlow", "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--page-background);
    -webkit-font-smoothing: antialiased;
    transition: background 0.4s ease, color 0.3s ease;
}

body::-webkit-scrollbar {
    width: 10px;
}

body::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 999px;
}

a {
    color: inherit;
}

a:hover,
a:focus {
    text-decoration: underline;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    letter-spacing: 0.02em;
    font-size: 0.92rem;
    padding: 0.6rem 1.3rem;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
    background: var(--btn-base-bg);
    color: var(--text);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: #050510;
    box-shadow: 0 12px 35px var(--btn-primary-shadow);
}

.btn-primary:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 45px var(--btn-primary-shadow-hover);
}

.btn-outline {
    background: transparent;
    border-color: var(--btn-outline-border);
}

.btn-outline:hover {
    background: var(--btn-ghost-hover);
}

.btn-ghost {
    background: var(--btn-ghost-bg);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--btn-ghost-hover);
}

.btn-small {
    font-size: 0.82rem;
    padding: 0.45rem 1.1rem;
}

.masthead {
    padding: clamp(2rem, 4vw, 3rem) clamp(1.4rem, 4vw, 3.5rem);
    display: grid;
    gap: 1.6rem;
    border-bottom: 1px solid var(--border);
}

.masthead__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.masthead__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.masthead__logo {
    height: 44px;
    width: auto;
    filter: drop-shadow(0 10px 25px var(--logo-shadow));
}

.masthead__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.masthead__tools {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.masthead__tools>* {
    height: 40px;
    /* Enforce consistent height */
    display: inline-flex;
    align-items: center;
}

.masthead__integration {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
    /* Adjust padding since height is fixed */
    border-radius: 999px;
    background: rgba(13, 36, 129, 0.12);
    border: 1px solid rgba(13, 36, 129, 0.3);
}

.masthead__integration img {
    height: 22px;
    width: auto;
}

.masthead__badge {
    display: grid;
    gap: 0.1rem;
    padding: 0.3rem 0.5rem;
    border-radius: 12px;
    border: 1px solid var(--badge-border);
    background: var(--badge-bg);
    min-width: 85px;
}

.masthead__badge-label {
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.65rem;
    color: var(--heading-muted);
}

.masthead__badge-value {
    font-weight: 700;
    font-size: 0.9rem;
}

.masthead__tools {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.theme-toggle {
    position: relative;
    width: 64px;
    height: 32px;
    padding: 0;
    border-radius: 999px;
    background: transparent;
    border: none;
    cursor: pointer;
    overflow: hidden;
    transition: transform var(--transition);
}

.theme-toggle:hover {
    transform: scale(1.05);
}

.theme-toggle__track {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: var(--toggle-bg);
    border: 1px solid var(--toggle-border);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.theme-toggle__thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    /* Adjusted for border */
    height: 24px;
    border-radius: 50%;
    background: var(--secondary);
    /* Default thumb color */
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.85rem;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1), background 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.theme-toggle .theme-icon-light,
.theme-toggle .theme-icon-dark {
    display: none;
}

/* Light Mode State (Sun on left) */
.theme-toggle.is-light .theme-toggle__track {
    background: #fef3c7;
    /* Pale yellow */
}

.theme-toggle.is-light .theme-toggle__thumb {
    transform: translateX(0);
    background: var(--primary);
    color: #fff;
}

.theme-toggle.is-light .theme-icon-light {
    display: inline-block;
}

/* Dark Mode State (Moon on right) */
.theme-toggle.is-dark .theme-toggle__track {
    background: #1f2937;
    /* Dark gray */
}

.theme-toggle.is-dark .theme-toggle__thumb {
    transform: translateX(32px);
    background: var(--primary);
    color: #fff;
}

.theme-toggle.is-dark .theme-icon-dark {
    display: inline-block;
}

.masthead__copy h1 {
    margin: 0;
    font-size: clamp(2.1rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.masthead__accent {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.masthead__status {
    margin: 0.5rem 0 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.masthead__copy p {
    margin: 0.55rem 0 0;
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 620px;
}

.masthead__project {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-muted);
}

.layout {
    display: grid;
    gap: clamp(1.6rem, 4vw, 2.6rem);
    padding: clamp(1.6rem, 4vw, 2.6rem) clamp(1.4rem, 5vw, 4rem) clamp(3rem, 6vw, 4rem);
    width: 100%;
}

/* Header Responsiveness */
@media (max-width: 768px) {
    .masthead__top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.2rem;
    }

    .masthead__brand {
        width: 100%;
    }

    .masthead__tools {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 600px) {
    .masthead__top {
        align-items: center;
    }

    .masthead__brand {
        justify-content: center;
    }

    .masthead__tools {
        justify-content: center;
    }

    .masthead__badges {
        gap: 0.5rem;
        justify-content: center;
    }

    .masthead__badge {
        padding: 0.35rem 0.65rem;
        min-width: auto;
    }

    .masthead__badge-value {
        font-size: 0.9rem;
    }

    .masthead__logo {
        height: 36px;
    }
}

.panel {
    display: grid;
    gap: clamp(1.2rem, 3vw, 1.8rem);
}

.panel--playlist {
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}

.panel--playlist>*:not(.playlist__list) {
    margin: 0;
}

.playlist__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.4rem;
}

.playlist__header h2 {
    margin: 0 0 0.35rem;
}

.playlist__header p {
    margin: 0;
    color: var(--text-muted);
}

.playlist__count {
    display: grid;
    grid-auto-flow: column;
    gap: clamp(1.2rem, 4vw, 2.4rem);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.72rem;
    color: var(--heading-muted);
}

.playlist__count div {
    display: grid;
    gap: 0.25rem;
    justify-items: end;
}

.playlist__count dt {
    margin: 0;
}

.playlist__count dd {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    font-weight: 800;
    letter-spacing: normal;
    color: var(--text);
}

@media (max-width: 640px) {
    .playlist__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .playlist__count {
        grid-auto-flow: row;
        justify-items: flex-start;
    }

    .playlist__count div {
        justify-items: flex-start;
    }
}


.playlist__list {
    display: grid;
    gap: 0.9rem;
}

.playlist__empty {
    padding: 2.8rem 1.6rem;
    text-align: center;
    border-radius: var(--radius-md);
    border: 1px dashed rgba(255, 255, 255, 0.16);
    background: var(--track-bg);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer p {
    margin: 0;
}

.version-badge {
    display: inline-block;
    margin-left: 0.5rem;
    padding: 0.1rem 0.4rem;
    background: var(--surface-2);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
}

/* Playlist Toolbar */
.playlist__toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Playlist Groups */
.playlist__group {
    display: grid;
    gap: 0.9rem;
    margin-bottom: 1.5rem;
}

.playlist__group-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-panel-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition);
    text-align: left;
}

.playlist__group-header:hover {
    background: var(--btn-ghost-hover);
    border-color: var(--btn-outline-border);
}

.playlist__group-icon {
    font-size: 1.2rem;
    opacity: 0.8;
}

.playlist__group-title {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist__group-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-right: 0.5rem;
}

.playlist__group-toggle-icon {
    font-size: 0.8rem;
    opacity: 0.6;
    transition: transform 0.2s ease;
}

.playlist__group-header[aria-expanded="true"] .playlist__group-toggle-icon {
    transform: rotate(180deg);
}

.playlist__group-content {
    display: grid;
    gap: 0.9rem;
    padding-left: 1.5rem;
    /* Indent tracks inside folder */
}

.playlist__group-content[hidden],
.playlist__group-content.is-collapsed {
    display: none;
}

.track {
    position: relative;
    display: grid;
    gap: 0.9rem;
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--track-border);
    background: var(--track-bg);
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

@media (min-width: 700px) {
    .track {
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 1.4rem;
    }
}

.track.is-playing {
    border-color: rgba(33, 213, 255, 0.45);
    box-shadow: 0 12px 26px rgba(33, 213, 255, 0.2);
}


.track__controls {
    display: flex;
    align-items: center;
    justify-content: center;
}

.track__main {
    display: grid;
    gap: 0.9rem;
}

.track__wave {
    position: relative;
    height: 96px;
    border-radius: 18px;
    overflow: hidden;
    background: var(--track-wave-bg);
    box-shadow: inset 0 1px 0 var(--wave-highlight);
}

.track__wavecanvas {
    display: block;
    width: 100%;
    height: 100%;
    opacity: 0.8;
    transition: opacity var(--transition), filter var(--transition);
    cursor: pointer;
}

.track__wavecanvas[data-state="loading"] {
    opacity: 0.4;
    filter: blur(2px);
}

.track__wavecanvas[data-state="error"] {
    opacity: 0.35;
    filter: grayscale(1);
}

.track__wave-progress {
    position: absolute;
    inset: 0;
    width: 0%;
    background: var(--wave-progress);
    mix-blend-mode: screen;
    pointer-events: none;
}

.track__timecode {
    position: absolute;
    right: 10px;
    bottom: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.4);
    padding: 2px 6px;
    border-radius: 4px;
    pointer-events: none;
    z-index: 10;
    font-feature-settings: "tnum";
    font-variant-numeric: tabular-nums;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.track.is-playing .track__wavecanvas {
    opacity: 1;
}

.track__wave-loading {
    position: absolute;
    /* Ensure it's on top */
}

/* Hide loading text when canvas is ready or error */
.track__wavecanvas[data-state="ready"]~.track__wave-loading,
.track__wavecanvas[data-state="error"]~.track__wave-loading {
    opacity: 0;
}

.track__title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
}

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

.track__file {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.86rem;
    color: var(--text);
    flex-wrap: wrap;
}

.track__filename {
    font-weight: 600;
    letter-spacing: 0.01em;
}

.track__filetype {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--chip-border);
    background: var(--chip-bg);
    color: var(--chip-text);
}

.track__actions {
    display: grid;
    gap: 0.6rem;
    justify-items: end;
}

.track__play {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--play-border);
    background: var(--play-bg);
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.track__play:hover {
    transform: translateY(-1px);
    border-color: rgba(33, 213, 255, 0.45);
    box-shadow: 0 12px 25px rgba(33, 213, 255, 0.25);
}

.track__play-icon {
    position: relative;
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 0 9px 15px;
    border-color: transparent transparent transparent var(--text);
    transition: transform var(--transition), opacity var(--transition);
}

.track__play.is-playing {
    background: var(--secondary);
    border-color: transparent;
    color: #050510;
}

.track__play.is-playing .track__play-icon {
    width: 16px;
    height: 16px;
    border: none;
}

.track__play.is-playing .track__play-icon::before,
.track__play.is-playing .track__play-icon::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 2px;
    background: #050510;
}

.track__play.is-playing .track__play-icon::before {
    left: 1px;
}

.track__play.is-playing .track__play-icon::after {
    right: 1px;
}

.track__download {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
    border: 1px solid var(--btn-outline-border);
    background: var(--btn-ghost-bg);
    color: var(--text);
    font-size: 0.85rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
}

.track__download:hover {
    background: var(--btn-ghost-hover);
    transform: translateY(-1px);
}

.footer {
    padding: 2rem 0 3rem;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--footer-text);
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--toast-bg);
    padding: 0.9rem 1.8rem;
    border-radius: 999px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    font-weight: 500;
    font-size: 0.95rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 100;
    white-space: nowrap;
}

.toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(10, 12, 32, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.is-hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader__logo {
    width: 200px;
    height: 100px;
    background-image: var(--brand-logo);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
        transform: scale(0.98);
    }

    50% {
        opacity: 1;
        transform: scale(1.02);
    }

    100% {
        opacity: 0.6;
        transform: scale(0.98);
    }
}

/* Error Screen */
.error-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--page-background);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.error-screen[hidden] {
    display: none;
}

.error-screen__content {
    text-align: center;
    max-width: 480px;
    padding: 2rem;
    animation: fadeIn 0.4s ease-out;
}

.error-screen__logo {
    height: 48px;
    margin-bottom: 3rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.error-screen__card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    box-shadow: var(--panel-shadow);
}

.error-screen__icon {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.error-screen h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

.error-screen p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* App Container */
#app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}