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

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #ef4444;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 2rem;
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

section {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--bg-tertiary);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    resize: vertical;
    font-family: inherit;
}

textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.input-wrapper {
    position: relative;
}

.input-wrapper textarea {
    padding-right: 50px;
}

.mic-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: background 0.2s;
}

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

.mic-btn.recording {
    background: var(--accent);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.mic-status {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-height: 20px;
    margin-top: 5px;
}

.controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    flex: 1;
    min-width: 120px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-secondary);
}

.btn-accent {
    background: var(--success);
    color: #1a1a2e;
}

.btn-accent:hover:not(:disabled) {
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--bg-tertiary);
    color: var(--text-secondary);
}

.btn-outline:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--text-primary);
}

.learn-section {
    background: var(--bg-secondary);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.learn-options {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.learn-options label {
    display: flex;
    align-items: center;
    gap: 10px;
}

.learn-options input[type="number"] {
    width: 60px;
    padding: 8px;
    border: 1px solid var(--bg-tertiary);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.learn-options input[type="range"] {
    width: 100px;
}

.learn-options span {
    min-width: 40px;
}

.status {
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.status.success {
    color: var(--success);
}

.status.error {
    color: var(--error);
}

.status.warning {
    color: var(--warning);
}

.flashcards-section {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--bg-tertiary);
}

.flashcards-section h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.flashcards-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
}

.flashcard {
    background: var(--bg-secondary);
    padding: 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.flashcard-content {
    flex: 1;
}

.flashcard-polish {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.flashcard-french {
    font-size: 1rem;
    color: var(--text-primary);
}

.flashcard-actions {
    display: flex;
    gap: 5px;
}

.flashcard-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.flashcard-btn.play {
    background: var(--accent);
    color: white;
}

.flashcard-btn.delete {
    background: var(--error);
    color: white;
}

.hidden {
    display: none !important;
}