/* ===================================
   Vox - 2026 Warm Aesthetic
   Colors: Soft whites, pale rose, coral, warm neutrals
   =================================== */

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

:root {
    /* Color palette - warm and contemporary */
    --white: #FFFBF7;
    --off-white: #FFF5EE;
    --pale-rose: #FFE4E1;
    --coral: #FF9B85;
    --coral-dark: #FF7A5C;
    --warm-gray: #E8D5D0;
    --warm-gray-dark: #C9B5AD;
    --text-primary: #4A3F3A;
    --text-secondary: #7A6E69;
    --shadow-light: rgba(255, 155, 133, 0.1);
    --shadow-medium: rgba(255, 155, 133, 0.15);
    --shadow-strong: rgba(74, 63, 58, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', sans-serif;
    background: linear-gradient(135deg, var(--off-white) 0%, var(--pale-rose) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.top-nav {
    padding: 1.5rem 2rem;
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--coral-dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
}

.app-header {
    text-align: center;
    margin-bottom: 2rem;
}

.app-header h1 {
    font-size: 3rem;
    font-weight: 300;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Main Layout */
.main-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 2rem;
    max-height: calc(100vh - 250px);
}

/* Controls Panel */
.controls-panel {
    background: var(--white);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px var(--shadow-light);
    overflow-y: auto;
    max-height: calc(100vh - 250px);
}

.control-section {
    margin-bottom: 2rem;
}

.control-section:last-child {
    margin-bottom: 0;
}

.control-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
}

/* Toggle */
.toggle-group {
    margin-bottom: 1rem;
}

.toggle {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.toggle input[type="checkbox"] {
    width: 48px;
    height: 26px;
    background: var(--warm-gray);
    border-radius: 13px;
    appearance: none;
    cursor: pointer;
    position: relative;
    transition: background 0.3s ease;
    margin-right: 0.75rem;
}

.toggle input[type="checkbox"]:checked {
    background: var(--coral);
}

.toggle input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-strong);
}

.toggle input[type="checkbox"]:checked::before {
    transform: translateX(22px);
}

.toggle-label {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Accent Categories */
.accent-categories {
    margin-top: 1rem;
}

.category {
    margin-bottom: 0.5rem;
}

.category summary {
    padding: 0.75rem;
    background: var(--off-white);
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    transition: background 0.2s ease;
    list-style: none;
}

.category summary::-webkit-details-marker {
    display: none;
}

.category summary::before {
    content: '›';
    display: inline-block;
    margin-right: 0.5rem;
    transition: transform 0.2s ease;
}

.category[open] summary::before {
    transform: rotate(90deg);
}

.category summary:hover {
    background: var(--pale-rose);
}

.category .options {
    padding: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.accent-btn {
    padding: 0.5rem 1rem;
    background: white;
    border: 1.5px solid var(--warm-gray);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.accent-btn:hover {
    background: var(--pale-rose);
    border-color: var(--coral);
    transform: translateY(-1px);
}

.accent-btn.active {
    background: var(--coral);
    color: white;
    border-color: var(--coral);
}

/* Slider */
.slider-group {
    margin-top: 1.5rem;
}

.slider-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.slider-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--warm-gray);
    border-radius: 3px;
    outline: none;
    appearance: none;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--coral);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px var(--shadow-medium);
}

.slider-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--coral);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px var(--shadow-medium);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Current Style */
.current-style {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--pale-rose) 0%, var(--off-white) 100%);
    border-radius: 12px;
}

.style-badge {
    padding: 0.5rem 1rem;
    background: white;
    border-radius: 20px;
    font-weight: 500;
    color: var(--coral-dark);
    font-size: 0.9rem;
    box-shadow: 0 2px 8px var(--shadow-light);
}

.auto-badge {
    padding: 0.25rem 0.75rem;
    background: var(--coral);
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Conversation Panel */
.conversation-panel {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--shadow-light);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.conversation-container {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.conversation-history {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.welcome-message {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.welcome-message h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.welcome-message p {
    font-size: 1rem;
    line-height: 1.7;
}

/* Chat Messages */
.message {
    display: flex;
    gap: 1rem;
    max-width: 80%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--coral);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--warm-gray-dark);
}

.message-content {
    background: var(--off-white);
    padding: 1rem 1.25rem;
    border-radius: 18px;
    line-height: 1.6;
    box-shadow: 0 2px 8px var(--shadow-light);
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--coral) 0%, var(--coral-dark) 100%);
    color: white;
}

.message-style {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-style: italic;
}

/* Input Area */
.input-area {
    padding: 1.5rem;
    background: var(--off-white);
    border-top: 1px solid var(--warm-gray);
}

.input-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.voice-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--coral);
    color: var(--coral);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.voice-btn:hover {
    background: var(--pale-rose);
    transform: scale(1.05);
}

.voice-btn.listening {
    background: var(--coral);
    color: white;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 155, 133, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(255, 155, 133, 0);
    }
}

#messageInput {
    flex: 1;
    padding: 0.875rem 1.25rem;
    background: white;
    border: 2px solid var(--warm-gray);
    border-radius: 24px;
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    transition: all 0.2s ease;
}

#messageInput:focus {
    border-color: var(--coral);
    box-shadow: 0 0 0 3px var(--shadow-light);
}

.send-btn {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--coral) 0%, var(--coral-dark) 100%);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-medium);
}

.send-btn:active {
    transform: translateY(0);
}

.listening-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    color: var(--coral-dark);
    font-size: 0.9rem;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--coral);
    border-radius: 50%;
    animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

/* Loading State */
.message.loading .message-content {
    background: var(--warm-gray);
    color: var(--text-secondary);
}

.typing-indicator {
    display: flex;
    gap: 0.25rem;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
        max-height: none;
    }

    .controls-panel {
        max-height: none;
    }

    .app-header h1 {
        font-size: 2rem;
    }

    .message {
        max-width: 90%;
    }

    .conversation-panel {
        min-height: 500px;
    }
}

/* Scrollbar Styling */
.controls-panel::-webkit-scrollbar,
.conversation-container::-webkit-scrollbar {
    width: 8px;
}

.controls-panel::-webkit-scrollbar-track,
.conversation-container::-webkit-scrollbar-track {
    background: transparent;
}

.controls-panel::-webkit-scrollbar-thumb,
.conversation-container::-webkit-scrollbar-thumb {
    background: var(--warm-gray);
    border-radius: 4px;
}

.controls-panel::-webkit-scrollbar-thumb:hover,
.conversation-container::-webkit-scrollbar-thumb:hover {
    background: var(--warm-gray-dark);
}