:root {
    --google-blue: #1a73e8;
    --google-blue-hover: #1765cc;
    --google-gray: #5f6368;
    --google-border: #dadce0;
    --google-bg: #f8f9fa;
    --google-surface: #ffffff;
    --text-main: #3c4043;
    --text-secondary: #70757a;
    
    --primary: #4A3728;
    --accent: #B8860B;
    
    --font-serif: 'Lora', serif;
    --font-heading: 'Cinzel', serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    --radius-lg: 12px;
    --radius-md: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

@media (prefers-color-scheme: dark) {
    :root {
        --google-blue: #8ab4f8;
        --google-blue-hover: #aecbfa;
        --google-gray: #9aa0a6;
        --google-border: #3c4043;
        --google-bg: #202124;
        --google-surface: #2d2e30;
        --text-main: #e8eaed;
        --text-secondary: #9aa0a6;
        
        --primary: #d2c1b0;
        --accent: #edc35e;
    }
}

body {
    font-family: var(--font-sans);
    background-color: var(--google-surface);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.app-header {
    border-bottom: 1px solid var(--google-border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-icon {
    width: 24px;
    height: 24px;
    color: var(--google-blue);
}

.app-header h1 {
    font-size: 22px;
    margin: 0;
    font-weight: 400;
    color: var(--google-gray);
    font-family: var(--font-sans); /* More GT like than Cinzel for UI */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Main Translator UI */
.translator-container {
    border: 1px solid var(--google-border);
    border-radius: var(--radius-md);
    background: var(--google-surface);
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.language-bar {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--google-border);
    padding: 0 16px;
    height: 48px;
}

.lang-selector-container {
    flex: 1;
}

.clean-select {
    width: 100%;
    border: none;
    padding: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--google-blue);
    background: transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.clean-select:focus {
    outline: none;
}

.swap-icon {
    padding: 0 12px;
    color: var(--google-gray);
    display: flex;
    align-items: center;
}

.translation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 200px;
}

@media (max-width: 768px) {
    .translation-grid {
        grid-template-columns: 1fr;
    }
    .target-panel {
        border-top: 1px solid var(--google-border);
    }
}

.panel {
    display: flex;
    flex-direction: column;
    padding: 16px;
    position: relative;
}

.source-panel {
    border-right: 1px solid var(--google-border);
}

.target-panel {
    background-color: var(--google-bg);
}

.panel-body {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
}

textarea {
    width: 100%;
    border: none;
    resize: none;
    font-size: 24px;
    font-family: var(--font-serif);
    color: var(--text-main);
    background: transparent;
    min-height: 120px;
    padding: 0;
}

textarea:focus {
    outline: none;
}

.output-text {
    font-size: 24px;
    font-family: var(--font-serif);
    color: var(--primary);
    white-space: pre-wrap;
    min-height: 120px;
}

.output-text:empty::before {
    content: attr(data-placeholder);
    color: var(--text-secondary);
}

.transliteration-text {
    font-size: 14px;
    color: var(--google-gray);
    margin-top: 8px;
    font-family: var(--font-sans);
}

.panel-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
}

.char-count {
    font-size: 12px;
    color: var(--google-gray);
}

.overlay-button {
    position: absolute;
    top: -8px;
    right: -8px;
    background: none;
    border: none;
    color: var(--google-gray);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
}

.overlay-button:hover {
    background: rgba(0,0,0,0.05);
}

.icon-btn-rounded {
    background: none;
    border: none;
    color: var(--google-gray);
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn-rounded:hover {
    background: rgba(0,0,0,0.05);
}

.action-buttons-group {
    display: flex;
    gap: 4px;
}

.primary-btn {
    background-color: var(--google-blue);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.primary-btn:hover {
    background-color: var(--google-blue-hover);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.action-bar {
    padding: 16px;
    display: flex;
    justify-content: flex-end;
    border-top: 1px solid var(--google-border);
}

/* Notes & History */
.linguistic-section {
    margin-top: 24px;
    padding: 16px;
    background: var(--google-surface);
    border: 1px solid var(--google-border);
    border-radius: var(--radius-md);
}

.notes-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--google-blue);
}

.notes-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 500;
}

.history-section {
    margin-top: 32px;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--google-border);
    padding-bottom: 8px;
    margin-bottom: 16px;
}

.history-header h2 {
    font-size: 18px;
    font-weight: 400;
    margin: 0;
}

.history-item {
    padding: 12px;
    border-bottom: 1px solid var(--google-border);
    cursor: pointer;
}

.history-item:hover {
    background: var(--google-bg);
}

.history-item .meta {
    font-size: 12px;
    color: var(--google-blue);
    margin-bottom: 4px;
}

/* Spinner */
.panel-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 32px;
    height: 32px;
    margin-top: -16px;
    margin-left: -16px;
    border: 3px solid rgba(26, 115, 232, 0.1);
    border-top-color: var(--google-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 10;
}

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

.spin {
    animation: spin 1s linear infinite;
}

.compact-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--google-gray);
    cursor: pointer;
}