/* --- Global Variables & Themes --- */
:root {
    --color-primary: hsl(260, 100%, 65%);
    --color-primary-light: hsl(260, 100%, 75%);
    --color-primary-dark: hsl(260, 100%, 55%);
    --color-secondary: hsl(190, 100%, 50%);
    --color-accent: hsl(330, 100%, 60%);

    /* Background colors */
    --color-bg-dark: hsl(240, 20%, 10%);
    --color-bg-darker: hsl(240, 20%, 7%);
    --color-bg-card: hsl(240, 18%, 14%);
    --color-bg-card-hover: hsl(240, 18%, 18%);

    /* Typography */
    --color-text-primary: hsl(0, 0%, 98%);
    --color-text-secondary: hsl(0, 0%, 70%);
    --color-text-tertiary: hsl(0, 0%, 50%);

    /* Status colors */
    --color-correct: hsl(142, 71%, 55%);
    --color-incorrect: hsl(0, 84%, 60%);
    --color-current: hsl(48, 100%, 60%);
    --color-pending: hsl(0, 0%, 40%);

    /* Shadows & Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(159, 90, 253, 0.3);

    /* Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* --- Theme Variations --- */
[data-theme="ocean"] {
    --color-primary: hsl(190, 90%, 55%);
    --color-primary-light: hsl(190, 90%, 65%);
    --color-primary-dark: hsl(190, 100%, 45%);
    --color-secondary: hsl(210, 100%, 65%);
    --color-accent: hsl(170, 100%, 70%);
    --color-bg-dark: hsl(215, 35%, 12%);
    --color-bg-darker: hsl(215, 35%, 8%);
    --color-bg-card: hsl(215, 25%, 16%);
    --color-correct: hsl(160, 80%, 60%);
}

[data-theme="cyber"] {
    --color-primary: hsl(320, 100%, 60%);
    --color-primary-light: hsl(320, 100%, 70%);
    --color-primary-dark: hsl(320, 100%, 50%);
    --color-secondary: hsl(180, 100%, 50%);
    --color-accent: hsl(50, 100%, 60%);
    --color-bg-dark: #090212;
    --color-bg-darker: #05010a;
    --color-bg-card: #150525;
    --color-correct: hsl(150, 100%, 50%);
    --color-incorrect: hsl(0, 100%, 60%);
    --color-current: hsl(60, 100%, 60%);
    --shadow-glow: 0 0 40px rgba(255, 0, 212, 0.4);
}

[data-theme="sunset"] {
    --color-primary: hsl(20, 100%, 65%);
    --color-primary-light: hsl(20, 100%, 75%);
    --color-primary-dark: hsl(20, 100%, 55%);
    --color-secondary: hsl(330, 90%, 65%);
    --color-accent: hsl(45, 100%, 65%);
    --color-bg-dark: hsl(25, 20%, 12%);
    --color-bg-darker: hsl(25, 20%, 8%);
    --color-bg-card: hsl(25, 15%, 18%);
    --color-current: hsl(45, 100%, 70%);
}

/* Nouveau thème Forest */
[data-theme="forest"] {
    --color-primary: hsl(145, 65%, 55%);
    --color-primary-light: hsl(145, 65%, 65%);
    --color-primary-dark: hsl(145, 80%, 40%);
    --color-secondary: hsl(80, 70%, 55%);
    --color-accent: hsl(35, 80%, 60%);
    --color-bg-dark: hsl(150, 20%, 10%);
    --color-bg-darker: hsl(150, 25%, 6%);
    --color-bg-card: hsl(150, 15%, 14%);
    --color-correct: hsl(130, 70%, 60%);
    --color-current: hsl(45, 90%, 65%);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

/* --- Background elements --- */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at 20% 50%, hsla(260, 100%, 65%, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, hsla(190, 100%, 50%, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, hsla(330, 100%, 60%, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-bg-darker) 0%, var(--color-bg-dark) 100%);
    animation: backgroundPulse 15s ease-in-out infinite;
}

@keyframes backgroundPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

/* --- Branding --- */
.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeInDown 0.8s ease;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.logo-icon {
    font-size: 3rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

.header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 5s ease infinite;
    letter-spacing: -0.02em;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.tagline {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Settings Panel --- */
.config-panel {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid hsla(0, 0%, 100%, 0.05);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.config-item label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.select-input {
    background: var(--color-bg-darker);
    color: var(--color-text-primary);
    border: 2px solid hsla(0, 0%, 100%, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    outline: none;
}

.select-input:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-card);
}

.select-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px hsla(260, 100%, 65%, 0.2);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Test Area --- */
.test-section {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid hsla(0, 0%, 100%, 0.05);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.stats-bar {
    display: flex;
    justify-content: space-around;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: var(--color-bg-darker);
    border-radius: var(--border-radius-md);
    border: 2px solid hsla(0, 0%, 100%, 0.05);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--color-primary);
    line-height: 1;
    transition: all var(--transition-fast);
}

.stat-value.updating {
    animation: statPulse 0.3s ease;
}

@keyframes statPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: hsla(0, 0%, 100%, 0.05);
    border-radius: 10px;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    position: relative;
    border: 1px solid hsla(0, 0%, 100%, 0.05);
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 0 15px var(--color-primary);
    transition: width 0.3s cubic-bezier(0.17, 0.67, 0.83, 0.67);
}

.stat-item.combo-item .stat-value {
    color: var(--color-accent);
}

.combo-pop {
    animation: comboPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes comboPop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.4) rotate(5deg);
    }

    100% {
        transform: scale(1);
    }
}

.high-combo {
    text-shadow: 0 0 10px var(--color-accent), 0 0 20px var(--color-accent);
}

.text-display {
    background: var(--color-bg-darker);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid hsla(0, 0%, 100%, 0.05);
    position: relative;
    overflow: hidden;
}

#textContent {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    line-height: 2.2;
    letter-spacing: 0.02em;
    word-wrap: break-word;
    user-select: none;
}

.char {
    position: relative;
    transition: all var(--transition-fast);
}

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

.char.incorrect {
    color: var(--color-incorrect);
    background: hsla(0, 84%, 60%, 0.15);
    border-radius: 3px;
}

.char.current {
    background: var(--color-current);
    color: var(--color-bg-darker);
    border-radius: 3px;
    animation: blink 1s ease-in-out infinite;
    padding: 0 2px;
}

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

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.input-section {
    margin-bottom: var(--spacing-lg);
}

.user-input {
    width: 100%;
    background: var(--color-bg-darker);
    color: var(--color-text-primary);
    border: 2px solid hsla(0, 0%, 100%, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    line-height: 1.6;
    resize: vertical;
    min-height: 100px;
    transition: all var(--transition-normal);
    outline: none;
}

.user-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px hsla(260, 100%, 65%, 0.2);
}

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

.shortcut-hint {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
    opacity: 0.7;
}

.shortcut-hint strong {
    color: var(--color-text-secondary);
    background: var(--color-bg-darker);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid hsla(0, 0%, 100%, 0.1);
}

/* Focus mode effect */
/* Focus mode effect (Désactivé) */
/* body.test-active .config-panel,
body.test-active .header,
body.test-active .history-section,
body.test-active .footer {
    opacity: 0.15;
    filter: blur(2px);
    pointer-events: none;
    transition: all 0.5s ease;
} */

.test-section {
    transition: transform 0.3s ease;
}

/* body.test-active .test-section {
    transform: translateY(-20px);
} */

.control-section {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--border-radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, hsla(0, 0%, 100%, 0.3), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 40px hsla(260, 100%, 65%, 0.4);
}

.btn-secondary {
    background: var(--color-bg-darker);
    color: var(--color-text-primary);
    border: 2px solid hsla(0, 0%, 100%, 0.2);
}

.btn-secondary:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
}

/* --- Results --- */
.results-panel {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-primary);
    animation: resultsAppear 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes resultsAppear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.results-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.results-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.result-card {
    background: var(--color-bg-darker);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    border: 2px solid hsla(0, 0%, 100%, 0.05);
    transition: all var(--transition-normal);
    animation: cardSlideIn 0.6s ease both;
}

.result-card:nth-child(1) {
    animation-delay: 0.1s;
}

.result-card:nth-child(2) {
    animation-delay: 0.2s;
}

.result-card:nth-child(3) {
    animation-delay: 0.3s;
}

.result-card:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes cardSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.result-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.result-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.result-value {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.result-unit {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.results-message {
    text-align: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, hsla(260, 100%, 65%, 0.1), hsla(190, 100%, 50%, 0.1));
    border-radius: var(--border-radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* --- History --- */
.history-section {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid hsla(0, 0%, 100%, 0.05);
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.btn-clear {
    background: transparent;
    color: var(--color-text-secondary);
    border: 2px solid hsla(0, 0%, 100%, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-clear:hover {
    background: hsla(0, 84%, 60%, 0.2);
    color: var(--color-incorrect);
    border-color: var(--color-incorrect);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.empty-history {
    text-align: center;
    color: var(--color-text-tertiary);
    padding: var(--spacing-xl);
    font-style: italic;
}

.history-item {
    background: var(--color-bg-darker);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: var(--spacing-md);
    border: 1px solid hsla(0, 0%, 100%, 0.05);
    animation: historySlideIn 0.4s ease both;
}

@keyframes historySlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.history-item:hover {
    border-color: var(--color-primary);
}

.history-date {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.history-type {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.history-wpm {
    color: var(--color-secondary);
    font-weight: 600;
}

.history-accuracy {
    color: var(--color-correct);
    font-weight: 600;
}

/* --- Footer --- */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid hsla(0, 0%, 100%, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.separator {
    opacity: 0.3;
}

/* --- Mobile tweaks --- */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2.5rem;
    }

    .config-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        flex-direction: column;
        align-items: center;
    }

    .history-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .control-section {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* --- Extra Options Buttons --- */
.toggle-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    background: var(--color-bg-card);
    padding: 0.25rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    transform: translateY(-1px);
}

.icon-btn.active {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 0 10px var(--color-primary);
}

.icon-btn#hardcoreMode.active {
    background: var(--color-incorrect);
    /* Rouge pour le mode Hardcore */
    box-shadow: 0 0 10px var(--color-incorrect);
}

/* Tooltip simple au survol */
.icon-btn[title]:hover::after {
    /* (Optionnel, le navigateur gère déjà le title, mais on pourrait le faire en CSS) */
}/* --- Chart Container --- */
.chart-container {
    width: 100%;
    height: 300px;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}