Kokoro-FastAPI/web/styles.css

:root {
    --bg-color: #0f172a;
    --fg-color: #6366f1;
    --surface: rgba(30, 41, 59, 1);
    --text: #f8fafc;
    --text-light: #cbd5e1;
    --border: rgba(148, 163, 184, 0.2);
    --error: #ef4444;
    --success: #22c55e;
    --font-family: 'Inter', system-ui, sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text);
    background: radial-gradient(circle at top right,
        var(--fg-color) 0%,
        var(--bg-color) 100%);
    min-height: 100vh;
    position: relative;
}

.overlay {
    position: fixed;
    inset: 0;
    background-image: 
        repeating-linear-gradient(0deg,
            rgba(255,255,255,0.03) 0px,
            rgba(255,255,255,0.03) 1px,
            transparent 1px,
            transparent 20px),
        repeating-linear-gradient(90deg,
            rgba(255,255,255,0.03) 0px,
            rgba(255,255,255,0.03) 1px,
            transparent 1px,
            transparent 20px);
    pointer-events: none;
}

.sun {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle at center,
        rgba(99, 102, 241, 0.2) 0%,
        transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.scanline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(99, 102, 241, 0.1);
    animation: scan 4s linear infinite;
}

@keyframes scan {
    0% { transform: translateY(0); }
    100% { transform: translateY(100px); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    position: relative;
    z-index: 1;
}

header {
    margin-bottom: 3rem;
    text-align: center;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

h1 {
    font-size: 5rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 10px 10px;
    -webkit-background-clip: text;
    background-clip: text;
    color: var(--text);
    text-shadow: 
        -2px -2px 0 rgba(0,0,0,0.5),  
        2px -2px 0 rgba(0,0,0,0.5),
        -2px 2px 0 rgba(0,0,0,0.5),
        2px 2px 0 rgba(0,0,0,0.5),
        3px 3px var(--fg-color);
}

.subtitle {
    color: var(--text-light);
    font-size: 1.5rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

.cup {
    width: 40px;
    height: 50px;
    border: 3px solid var(--text);
    border-radius: 0 0 20px 20px;
    position: relative;
    animation: float 3s ease-in-out 2;
    animation-fill-mode: forwards;
}

.handle {
    width: 15px;
    height: 25px;
    border: 3px solid var(--text);
    border-radius: 0 10px 10px 0;
    position: absolute;
    right: -15px;
    top: 10px;
}

.steam {
    position: absolute;
    top: -15px;
    left: 5px;
    right: 5px;
    height: 15px;
    display: flex;
    justify-content: space-between;
}

.steam::before,
.steam::after {
    content: "";
    width: 10px;
    height: 100%;
    background: rgba(255,255,255,0.7);
    border-radius: 10px;
    animation: steam 2s 2;
    animation-fill-mode: forwards;
}

@keyframes steam {
    to {
        transform: translateY(-10px) scale(1.5);
        opacity: 0;
    }
}

@keyframes float {
    50% {
        transform: translateY(-5px);
    }
}

main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 600px;
}

@media (min-width: 1024px) {
    main {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        align-items: stretch;
    }

    .input-section, .player-section {
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .input-section textarea {
        flex: 1;
        min-height: 200px;
    }

    .player-section {
        display: flex;
        flex-direction: column;
    }

    .audio-controls {
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .wave-container {
        flex: 1;
        min-height: 200px;
    }
}

.input-section, .player-section {
    background: var(--surface);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    background: rgba(15, 23, 42, 0.3);
    color: var(--text);
    font-size: 1rem;
    transition: border-color 0.2s ease;
    font-family: var(--font-family);
    resize: vertical;
}

textarea:focus {
    outline: none;
    border-color: var(--fg-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

textarea::placeholder {
    color: var(--text-light);
}

.controls {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.voice-select-container {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.voice-search {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    background: rgba(15, 23, 42, 0.3);
    color: var(--text);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.voice-search:focus {
    outline: none;
    border-color: var(--fg-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.voice-search::placeholder {
    color: var(--text-light);
}

.voice-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    margin-top: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.voice-select-container:focus-within .voice-dropdown,
.voice-dropdown:hover {
    display: block;
}

.voice-option {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: background-color 0.2s ease;
    color: var(--text);
}

.voice-option:hover {
    background: rgba(99, 102, 241, 0.1);
}

.selected-voices {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.selected-voice-tag {
    background: rgba(99, 102, 241, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.remove-voice {
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.remove-voice:hover {
    opacity: 1;
}

.options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    cursor: pointer;
}

.format-select {
    background: rgba(15, 23, 42, 0.3);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    font-family: var(--font-family);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
}

.format-select:hover {
    border-color: var(--fg-color);
}

.format-select:focus {
    outline: none;
    border-color: var(--fg-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.format-select option {
    background: var(--surface);
    color: var(--text);
}

.button-group {
    display: flex;
    gap: 1rem;
}

button {
    background: var(--fg-color);
    color: var(--text);
    padding: 1rem;
    border-radius: 0.5rem;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex: 1;
}

button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.cancel-btn {
    background: var(--error);
}

.loader {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading .loader {
    display: inline-block;
}

.loading .btn-text {
    display: none;
}

.audio-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.player-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(15, 23, 42, 0.3);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    background: rgba(15, 23, 42, 0.3);
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.seek-slider,
.volume-slider {
    -webkit-appearance: none;
    height: 4px;
    border-radius: 2px;
    background: rgba(99, 102, 241, 0.2);
    outline: none;
    cursor: pointer;
    transition: height 0.2s ease-in-out;
}

.seek-slider {
    flex: 1;
}

.volume-slider {
    width: 100px;
}

.seek-slider::-webkit-slider-thumb,
.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--fg-color);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.seek-slider::-webkit-slider-thumb:hover,
.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.seek-slider::-moz-range-thumb,
.volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border: none;
    border-radius: 50%;
    background: var(--fg-color);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.seek-slider::-moz-range-thumb:hover,
.volume-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-left: 0.5rem;
    border-left: 1px solid var(--border);
}

.volume-icon {
    color: var(--fg-color);
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.volume-icon:hover {
    opacity: 1;
}

.player-btn {
    background: var(--fg-color);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 0 0 auto;
    min-width: 80px;
}

.player-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.wave-container {
    width: 100%;
    height: 120px;
    background: rgba(15, 23, 42, 0.3);
    border-radius: 0.25rem;
    overflow: hidden;
    position: relative;
    margin-top: 0.5rem;
}

.wave-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.time-display {
    color: var(--text-light);
    font-size: 0.875rem;
    min-width: 100px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.download-button {
    position: relative;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    align-self: flex-end;
}

.download-glow {
    position: absolute;
    inset: -15%;
    background: conic-gradient(
        from 0deg,
        var(--fg-color),
        var(--success),
        var(--fg-color)
    );
    border-radius: 4px;
    animation: rotate 4s linear infinite;
    filter: blur(8px);
    opacity: 0.5;
}

.download-icon {
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 2;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-button:hover {
    transform: scale(1.05);
}

.download-button:hover .download-icon {
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.3);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.status {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    opacity: 0;
    font-weight: 500;
    text-align: center;
}

.status.info {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    opacity: 1;
}

.status.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    opacity: 1;
}

.status.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    opacity: 1;
}

@media (max-width: 1023px) {
    .container {
        padding: 2rem 1rem;
    }

    h1 {
        font-size: 3rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .cup {
        width: 30px;
        height: 40px;
    }

    .handle {
        width: 12px;
        height: 20px;
        right: -12px;
        top: 8px;
    }

    .steam {
        top: -12px;
    }

    .steam::before,
    .steam::after {
        width: 6px;
    }

    .input-section, .player-section {
        padding: 1.5rem;
    }

    .voice-select-container {
        flex-direction: column;
        align-items: stretch;
    }

    .options {
        flex-direction: column;
        gap: 1rem;
    }

    .sun {
        width: 80px;
        height: 80px;
        top: 10px;
        right: 10px;
    }

    .button-group {
        flex-direction: column;
    }

    .player-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .player-controls {
        flex-direction: column;
        gap: 0.75rem;
    }

    .player-btn {
        width: 100%;
    }

    .volume-control {
        border-left: none;
        border-top: 1px solid var(--border);
        padding-left: 0;
        padding-top: 0.75rem;
        width: 100%;
    }

    .volume-slider {
        flex: 1;
        width: auto;
    }

    .wave-container {
        height: 80px;
    }

    .time-display {
        text-align: center;
    }
}