/* ============================================
   VARIABLES
   ============================================ */
:root {
    --color-bg: #0f0f23;
    --color-surface: #1a1a2e;
    --color-surface-light: #252542;
    --color-primary: #00d4ff;
    --color-primary-dark: #00a8cc;
    --color-secondary: #ff6b35;
    --color-success: #00ff88;
    --color-error: #ff4757;
    --color-warning: #ffa502;
    --color-text: #ffffff;
    --color-text-dim: #888899;
    --color-text-muted: #555566;
    --color-gold: #ffd700;
    --color-silver: #c0c0c0;
    --color-bronze: #cd7f32;

    --font-mono: 'Courier New', Courier, monospace;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
}

/* ============================================
   SCREENS
   ============================================ */
.screen {
    display: none;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 20px;
}

.screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ============================================
   LOGO
   ============================================ */
.logo {
    text-align: center;
    margin-bottom: 20px;
}

.logo-icon {
    font-size: 64px;
    display: block;
    margin-bottom: 16px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.logo h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-surface-light);
}

.header span {
    font-size: 1.1rem;
    font-weight: 600;
}

/* ============================================
   FORMS
   ============================================ */
.form-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-label {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

input[type="text"],
textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: var(--font-main);
    background: var(--color-surface);
    border: 2px solid var(--color-surface-light);
    border-radius: var(--radius-md);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
textarea:focus {
    border-color: var(--color-primary);
}

input[type="text"]::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
}

/* ============================================
   PLAYER COUNT SELECTOR
   ============================================ */
.player-count-selector {
    display: flex;
    gap: 12px;
}

.count-btn {
    flex: 1;
    padding: 16px;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--color-surface);
    border: 2px solid var(--color-surface-light);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.count-btn:hover {
    border-color: var(--color-primary);
}

.count-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 52px;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-bg);
}

.btn-primary:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: var(--color-surface-light);
    color: var(--color-text);
}

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

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-surface-light);
}

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

.btn-large {
    padding: 20px 32px;
    font-size: 1.1rem;
}

.btn-icon {
    font-size: 1.2em;
}

.btn-icon-only {
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    -webkit-tap-highlight-color: transparent;
}

/* ============================================
   COUNTDOWN / READY
   ============================================ */
.countdown-container {
    text-align: center;
    justify-content: center;
    align-items: center;
}

.ready-label {
    font-size: 1rem;
    color: var(--color-text-dim);
    margin-bottom: 8px;
}

.ready-name {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.countdown-number {
    font-size: 8rem;
    font-weight: 800;
    color: var(--color-primary);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.countdown-text {
    font-size: 1.1rem;
    color: var(--color-text-dim);
    margin-top: 24px;
}

/* ============================================
   PLAYING SCREEN
   ============================================ */
.playing-container {
    gap: 16px;
    height: calc(100vh - 40px);
    height: calc(100dvh - 40px);
    max-height: 700px;
}

.playing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.player-tag {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.1rem;
}

.live-stats {
    display: flex;
    gap: 16px;
}

.live-stat {
    font-size: 0.9rem;
    color: var(--color-text-dim);
}

.live-stat span:first-child {
    font-weight: 700;
    color: var(--color-text);
}

/* ============================================
   TEXT DISPLAY
   ============================================ */
.text-section {
    flex: 1;
    min-height: 100px;
    overflow-y: auto;
}

.text-display {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    line-height: 1.8;
    padding: 16px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    word-wrap: break-word;
    min-height: 100%;
}

.text-display .char {
    display: inline;
}

.text-display .char.correct {
    color: var(--color-success);
}

.text-display .char.incorrect {
    color: var(--color-error);
    background: rgba(255, 71, 87, 0.2);
    border-radius: 2px;
}

.text-display .char.current {
    border-bottom: 2px solid var(--color-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { border-color: var(--color-primary); }
    51%, 100% { border-color: transparent; }
}

.text-display .char.pending {
    color: var(--color-text-dim);
}

/* ============================================
   TYPING INPUT
   ============================================ */
.input-section {
    flex-shrink: 0;
}

#typing-input {
    min-height: 80px;
    resize: none;
    font-family: var(--font-mono);
    font-size: 1rem;
    line-height: 1.6;
}

#typing-input:disabled {
    opacity: 0.5;
}

/* ============================================
   PROGRESS
   ============================================ */
.progress-section {
    flex-shrink: 0;
}

.progress-bar {
    height: 12px;
    background: var(--color-surface);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success));
    border-radius: 6px;
    transition: width 0.1s ease-out;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

/* ============================================
   PLAYER DONE
   ============================================ */
.done-content {
    text-align: center;
    padding: 20px 0;
}

.done-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 16px;
}

.done-content h2 {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.done-subtitle {
    color: var(--color-text-dim);
    margin-top: 8px;
}

.done-stats {
    display: flex;
    justify-content: space-around;
    gap: 12px;
}

.stat-card {
    flex: 1;
    text-align: center;
    padding: 20px 12px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
}

.stat-card .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-card .stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

/* ============================================
   RESULTS
   ============================================ */
.results-header {
    text-align: center;
}

.results-header .trophy {
    font-size: 4rem;
    display: block;
    margin-bottom: 8px;
}

.results-header h2 {
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.podium {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.podium-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.podium-item.first {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.05));
    border: 2px solid var(--color-gold);
}

.podium-item.second {
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.2), rgba(192, 192, 192, 0.05));
    border: 2px solid var(--color-silver);
}

.podium-item.third {
    background: linear-gradient(135deg, rgba(205, 127, 50, 0.2), rgba(205, 127, 50, 0.05));
    border: 2px solid var(--color-bronze);
}

.podium-position {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.podium-info {
    flex: 1;
}

.podium-name {
    font-weight: 600;
    font-size: 1rem;
}

.podium-stats {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    display: flex;
    gap: 12px;
    margin-top: 4px;
}

/* ============================================
   RECORDS
   ============================================ */
.records-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 200px;
}

.records-empty {
    text-align: center;
    color: var(--color-text-dim);
    padding: 40px 20px;
}

.record-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
}

.record-position {
    font-size: 1.2rem;
    font-weight: 700;
    width: 30px;
    text-align: center;
    color: var(--color-text-dim);
}

.record-item:nth-child(1) .record-position { color: var(--color-gold); }
.record-item:nth-child(2) .record-position { color: var(--color-silver); }
.record-item:nth-child(3) .record-position { color: var(--color-bronze); }

.record-info {
    flex: 1;
}

.record-name {
    font-weight: 600;
}

.record-date {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.record-wpm {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.record-wpm-label {
    font-size: 0.7rem;
    color: var(--color-text-dim);
    display: block;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (min-width: 480px) {
    .btn-group {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .btn-group .btn {
        flex: 1;
        min-width: 140px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 500px;
    }

    .text-display {
        font-size: 1.2rem;
    }

    .playing-container {
        max-height: 800px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}