/* ===================================
   CSS Variables & Theme
   =================================== */
:root {
    /* Colors */
    --jungle-green: #1a5f3a;
    --jungle-dark: #0d3d28;
    --jungle-light: #2d8659;
    --banana-yellow: #ffd93d;
    --banana-dark: #f5b700;
    --sky-blue: #6bc5f8;
    --earth-brown: #8b5a3c;
    --leaf-green: #4caf50;
    --error-red: #ff5252;
    --success-green: #66ff66;
    --white: #ffffff;
    --black: #000000;
    --overlay: rgba(0, 0, 0, 0.7);

    /* Night Mode Colors */
    --night-bg: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f1419 100%);
    --night-accent: #e94560;

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

    /* Typography */
    --font-heading: 'Fredoka One', cursive;
    --font-body: 'Poppins', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.25rem;
    --font-size-lg: 1.75rem;
    --font-size-xl: 2.5rem;
    --font-size-xxl: 3.5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(255, 217, 61, 0.5);
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--jungle-dark);
    color: var(--white);
}

/* Night Mode */
body.night-mode {
    background: var(--night-bg);
}

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
}

.game-title {
    font-size: var(--font-size-xxl);
    color: var(--banana-yellow);
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    margin-bottom: var(--spacing-sm);
}

.game-subtitle {
    font-size: var(--font-size-lg);
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.screen-title {
    font-size: var(--font-size-xl);
    color: var(--banana-yellow);
    margin-bottom: var(--spacing-lg);
}

/* ===================================
   Layout
   =================================== */
.screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
}

.screen.active {
    opacity: 1;
    visibility: visible;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 10;
}

.game-header {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

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

/* ===================================
   Cards
   =================================== */
.stats-card,
.results-card,
.settings-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.stats-card {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--banana-yellow);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-heading);
    font-size: var(--font-size-md);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-height: 60px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--banana-yellow) 0%, var(--banana-dark) 100%);
    color: var(--jungle-dark);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--jungle-light) 0%, var(--jungle-green) 100%);
    color: var(--white);
}

.btn-large {
    font-size: var(--font-size-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    min-height: 80px;
}

.btn-small {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 40px;
}

.btn-icon {
    font-size: 1.5em;
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

.results-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.btn-danger {
    background: linear-gradient(135deg, #ff5252 0%, #c62828 100%);
    color: var(--white);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #ff6b6b 0%, #d32f2f 100%);
}

/* ===================================
   Typing Screen Specific
   =================================== */
.typing-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 10;
}

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

.live-stats {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.live-stat {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.live-stat-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
}

.live-stat-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--banana-yellow);
}

.text-display-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    min-height: 200px;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.text-display {
    font-size: var(--font-size-lg);
    line-height: 2;
    color: var(--black);
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
    user-select: none;
}

/* Font Size Settings */
body.font-small .text-display {
    font-size: var(--font-size-md);
}

body.font-medium .text-display {
    font-size: var(--font-size-lg);
}

body.font-large .text-display {
    font-size: var(--font-size-xl);
}

body.font-xlarge .text-display {
    font-size: 2rem;
}

.text-display span {
    position: relative;
    padding: 2px;
}

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

.text-display span.incorrect {
    color: var(--error-red);
    background: rgba(255, 82, 82, 0.2);
}

.text-display span.current {
    background: var(--banana-yellow);
    animation: pulse 1s infinite;
}

/* ===================================
   Results Screen
   =================================== */
.results-card {
    text-align: center;
}

.results-title {
    font-size: var(--font-size-xxl);
    color: var(--banana-yellow);
    margin-bottom: var(--spacing-lg);
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.result-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.result-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xs);
}

.result-value {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--banana-yellow);
}

/* ===================================
   Animal Collection
   =================================== */
.animals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.animal-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.animal-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.animal-card.locked {
    opacity: 0.5;
    filter: grayscale(1);
}

.animal-image {
    width: 100%;
    height: 150px;
    object-fit: contain;
    margin-bottom: var(--spacing-sm);
}

.animal-name {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--banana-yellow);
    margin-bottom: var(--spacing-xs);
}

.animal-requirement {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
}

/* ===================================
   Settings
   =================================== */
.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-md);
    cursor: pointer;
}

.setting-icon {
    font-size: var(--font-size-lg);
}

.toggle-switch {
    position: relative;
    width: 60px;
    height: 30px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.2);
    transition: 0.3s;
    border-radius: var(--radius-full);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

input:checked+.toggle-slider {
    background-color: var(--banana-yellow);
}

input:checked+.toggle-slider:before {
    transform: translateX(30px);
}

.setting-select {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: var(--font-size-sm);
    cursor: pointer;
    min-width: 200px;
}

.setting-select option {
    background: var(--jungle-dark);
    color: var(--white);
}

.setting-divider {
    height: 2px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.2), transparent);
    margin: var(--spacing-lg) 0;
}

/* ===================================
   Mobile Input (Hidden but functional)
   =================================== */
.mobile-typing-input {
    position: absolute;
    opacity: 0.01;
    /* Almost invisible but still focusable */
    pointer-events: auto;
    z-index: 1;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 1px;
    height: 1px;
    font-size: 16px;
    /* Prevents iOS zoom on focus */
    border: none;
    outline: none;
    background: transparent;
    color: transparent;
    caret-color: transparent;
}

/* ===================================
   Responsive Design - Enhanced
   =================================== */
@media (max-width: 768px) {
    .game-title {
        font-size: var(--font-size-xl);
    }

    .game-subtitle {
        font-size: var(--font-size-md);
    }

    .stats-card {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .stat-value {
        font-size: var(--font-size-lg);
    }

    .live-stats {
        justify-content: center;
        gap: 0.5rem;
        padding: 0.5rem;
    }

    .live-stat {
        min-width: 70px;
        padding: 0.4rem 0.6rem;
    }

    .live-stat-label {
        font-size: 0.65rem;
    }

    .live-stat-value {
        font-size: 1rem;
    }

    .text-display {
        font-size: 1.2rem;
        padding: 1.5rem 1rem;
        line-height: 2;
    }

    .typing-container {
        padding: var(--spacing-md);
    }

    .typing-header {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    /* Settings improvements */
    .setting-item {
        padding: 1rem;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .setting-item label {
        font-size: 1rem;
    }

    .setting-select {
        min-width: 150px;
        font-size: 0.9rem;
    }

    /* Buttons - larger touch targets */
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        min-height: 48px;
        /* iOS recommended touch target */
    }

    .btn-small {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
        min-height: 44px;
    }

    .btn-large {
        padding: 1rem 1.5rem;
        font-size: 1.2rem;
    }

    .menu-buttons {
        gap: 1rem;
        padding: var(--spacing-md);
    }

    /* Animal collection */
    .animals-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.75rem;
    }

    .animal-card {
        padding: 0.75rem;
    }

    .animal-image {
        height: 100px;
    }

    .animal-name {
        font-size: 0.9rem;
    }

    .animal-requirement {
        font-size: 0.7rem;
    }

    /* Results screen */
    .results-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .results-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .result-value {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-xxl: 2rem;
        --font-size-xl: 1.75rem;
        --font-size-lg: 1.25rem;
    }

    .container {
        padding: var(--spacing-sm);
    }

    .text-display {
        font-size: 1.1rem;
        padding: 1rem 0.75rem;
        line-height: 1.8;
    }

    .stats-card {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .stat-value {
        font-size: var(--font-size-md);
    }

    .animals-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .animal-card {
        padding: 0.5rem;
    }

    .animal-image {
        height: 80px;
    }

    .live-stat {
        min-width: 60px;
        padding: 0.3rem 0.5rem;
    }

    .live-stat-label {
        font-size: 0.6rem;
    }

    .live-stat-value {
        font-size: 0.9rem;
    }

    .menu-buttons {
        padding: 0.5rem;
    }

    .btn {
        font-size: 0.95rem;
        padding: 0.75rem 1.25rem;
    }

    .results-stats {
        grid-template-columns: 1fr;
    }

    .result-value {
        font-size: var(--font-size-lg);
    }
}

/* Landscape mode for small devices */
@media (max-height: 500px) and (orientation: landscape) {
    .typing-container {
        padding: 0.5rem;
    }

    .text-display-container {
        padding: 1rem;
        min-height: auto;
    }

    .text-display {
        font-size: 1rem;
        line-height: 1.6;
    }

    .live-stats {
        gap: 0.25rem;
    }

    .live-stat {
        padding: 0.25rem 0.5rem;
        min-width: 50px;
    }
}