:root {
    --bg-color: #0f172a;
    --fg-color: #6366f1;
    --surface: rgba(30, 41, 59, 1); /* Made opaque */
    --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;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

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

h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

.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);
    margin-bottom: 2rem;
}

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;
    align-items: center;
    gap: 1rem;
}

.voice-search {
    flex: 1;
    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; /* Increased z-index */
    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-voice-tag {
    background: rgba(99, 102, 241, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.options {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

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

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;
}

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;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    cursor: pointer;
    z-index: 100;
    border-radius: 50%;
    background: var(--fg-color);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* Make audio player full width */
audio {
    width: 100%;
    margin-top: 1rem;
}

@media (max-width: 640px) {
    .container {
        padding: 2rem 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

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

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

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

    .theme-toggle {
        width: 50px;
        height: 50px;
        top: 10px;
        right: 10px;
    }
}