/* ===================================
   Kanji Tsunagi - Mini-jeu de connexions
   L'Atelier des Kanji
   =================================== */

/* CSS Variables */
:root {
    /* Primary Colors */
    --orange-primary: #E67E5A;
    --orange-light: #F5A882;
    --orange-dark: #D15A3A;

    /* Secondary Colors */
    --green-primary: #7DB59A;
    --green-light: #A8D5BA;
    --green-dark: #5A9B7A;

    /* Neutral Colors */
    --beige-light: #FBF8F4;
    --beige-medium: #F5EDE3;
    --beige-dark: #E8DDD0;

    /* Background Colors */
    --bg-white: #FFFFFF;
    --bg-light: #FBF8F4;

    /* Text Colors */
    --text-primary: #3D3A36;
    --text-secondary: #6B6560;
    --text-muted: #9A938A;
    --text-inverse: #FFFFFF;

    /* Accent Colors */
    --accent-gold: #D4A84B;
    --accent-pink: #E8A8B8;
    --accent-blue: #7BA3C9;
    --accent-purple: #9B8DC9;

    /* Status Colors */
    --success: #7DB59A;
    --error: #E57373;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(61, 58, 54, 0.06);
    --shadow-md: 0 4px 12px rgba(61, 58, 54, 0.1);
    --shadow-lg: 0 8px 24px rgba(61, 58, 54, 0.15);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;

    /* Typography */
    --font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--beige-light) 0%, var(--beige-medium) 100%);
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
}

/* ===================================
   HEADER
   =================================== */
.game-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    background: var(--bg-white);
    border-bottom: 1px solid var(--beige-dark);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 56px;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px;
}

.back-btn:hover {
    background: var(--beige-light);
    color: var(--orange-primary);
}

.game-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.game-title .game-icon {
    font-size: 1.5rem;
}

.game-title h1 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
}

.game-stats {
    display: flex;
    gap: var(--space-4);
}

.game-stats .stat {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--beige-light);
    border-radius: var(--radius-full);
}

.stat-icon {
    font-size: 1rem;
}

.stat-value {
    font-weight: var(--font-weight-bold);
    color: var(--orange-primary);
}

/* ===================================
   MAIN CONTENT
   =================================== */
.game-main {
    height: calc(100vh - 56px);
    height: calc(100svh - 56px);
    height: calc(100dvh - 56px);
    margin-top: 56px;
    padding: var(--space-3);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.screen {
    width: 100%;
    max-width: 1200px;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* ===================================
   INTRO SCREEN
   =================================== */
.intro-card {
    background: var(--bg-white);
    padding: var(--space-7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

.intro-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
}

.intro-card h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-2);
}

.intro-subtitle {
    font-size: 1.1rem;
    color: var(--orange-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
}

.intro-text {
    color: var(--text-secondary);
    margin-bottom: var(--space-5);
    line-height: 1.7;
}

.intro-features {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.intro-features .feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--beige-light);
    border-radius: var(--radius-lg);
    min-width: 80px;
}

.feature-icon {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
}

.feature span:last-child {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    min-height: 48px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--orange-light), var(--orange-primary));
    color: var(--text-inverse);
    box-shadow: 0 4px 12px rgba(230, 126, 90, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 126, 90, 0.4);
}

.btn-outline {
    background: transparent;
    border-color: var(--beige-dark);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--beige-light);
    border-color: var(--orange-primary);
    color: var(--orange-primary);
}

.btn-large {
    padding: var(--space-4) var(--space-6);
    font-size: 1.1rem;
}

/* ===================================
   SELECTION CARDS
   =================================== */
.selection-card {
    background: var(--bg-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 700px;
}

.selection-card h2 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--space-2);
}

.selection-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: var(--space-5);
}

/* Mode Options */
.mode-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--beige-light);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
    font-family: var(--font-family);
}

.mode-btn:hover {
    border-color: var(--orange-light);
    transform: translateX(4px);
}

.mode-btn.selected {
    border-color: var(--orange-primary);
    background: linear-gradient(135deg, rgba(245, 168, 130, 0.1), rgba(230, 126, 90, 0.1));
}

.mode-icon {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--orange-primary);
    min-width: 60px;
    text-align: center;
}

.mode-info h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-1);
}

.mode-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.mode-example {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.radical-tag,
.kanji-tag,
.meaning-tag,
.family-tag {
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
}

.radical-tag {
    background: var(--accent-purple);
    color: white;
}

.kanji-tag {
    background: var(--orange-primary);
    color: white;
}

.meaning-tag {
    background: var(--green-primary);
    color: white;
}

.family-tag {
    background: var(--accent-blue);
    color: white;
}

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

.arrow {
    color: var(--text-muted);
}

/* Level Options */
.level-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.level-btn {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--beige-light);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
    font-family: var(--font-family);
}

.level-btn:hover {
    border-color: var(--orange-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.level-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--orange-light), var(--orange-primary));
    color: white;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
}

.level-info {
    flex: 1;
}

.level-info h3 {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-1);
}

.level-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

.level-stats {
    font-size: 0.8rem;
    color: var(--orange-primary);
    font-weight: var(--font-weight-semibold);
}

.level-badge {
    padding: var(--space-1) var(--space-3);
    background: var(--beige-medium);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
}

.selection-actions {
    display: flex;
    justify-content: center;
}

/* ===================================
   GAME SCREEN - IMMERSIVE FULL SCREEN
   =================================== */

/* Full screen game container */
.game-screen-fullscreen {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    max-width: 100% !important;
    height: 100vh !important;
    height: 100svh !important;
    height: 100dvh !important;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--beige-medium) 0%, var(--beige-light) 100%);
    padding: 0 !important;
    margin: 0 !important;
    z-index: 1000;
}

/* Compact Top Bar */
.game-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--beige-dark);
    flex-shrink: 0;
    height: 52px;
    z-index: 10;
}

.game-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.game-back-btn:hover {
    background: var(--beige-light);
    color: var(--orange-primary);
}

.game-mode-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--orange-light), var(--orange-primary));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: var(--font-weight-semibold);
}

.game-mode-badge .separator {
    opacity: 0.6;
}

.game-stats-inline {
    display: flex;
    gap: var(--space-2);
}

.stat-pill {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: var(--beige-light);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    border: 1px solid var(--beige-dark);
}

.stat-pill .stat-icon {
    font-size: 0.9rem;
}

.stat-pill.score {
    background: linear-gradient(135deg, #FFF8E1, #FFE082);
    border-color: #FFD54F;
    color: #F57C00;
}

.stat-pill.combo {
    background: linear-gradient(135deg, #FFEBEE, #FFCDD2);
    border-color: #EF9A9A;
    color: #D32F2F;
}

.stat-pill.progress {
    background: linear-gradient(135deg, #E8F5E9, #C8E6C9);
    border-color: #A5D6A7;
    color: #388E3C;
}

.stat-pill.timer {
    background: var(--bg-white);
    color: var(--text-secondary);
}

.stat-pill.timer svg {
    opacity: 0.7;
}

/* ===================================
   MAIN GAME BOARD - THREE ZONE LAYOUT
   =================================== */
.game-board {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 80px 1fr;
    gap: 0;
    padding: var(--space-4);
    min-height: 0;
    overflow: hidden;
    position: relative;
}

/* SVG Connection Lines */
.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.connection-line {
    fill: none;
    stroke: var(--beige-dark);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 8 4;
    opacity: 0;
    transition: all var(--transition-normal);
}

.connection-line.visible {
    opacity: 1;
    stroke-dasharray: none;
}

.connection-line.correct {
    stroke: var(--green-primary);
    stroke-width: 4;
    filter: drop-shadow(0 2px 4px rgba(125, 181, 154, 0.4));
}

.connection-line.incorrect {
    stroke: var(--error);
    stroke-dasharray: 8 4;
}

/* Column Zones */
.game-column {
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    min-height: 0;
}

.left-zone {
    border-top-right-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

.right-zone {
    border-top-left-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-lg);
}

/* Column Headers with Labels */
.column-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: linear-gradient(135deg, var(--beige-light), var(--beige-medium));
    border-bottom: 1px solid var(--beige-dark);
    flex-shrink: 0;
}

.column-icon {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    opacity: 0.7;
}

.left-zone .column-icon {
    color: var(--accent-purple);
}

.right-zone .column-icon {
    color: var(--orange-primary);
}

.column-title {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Cards Container */
.cards-container {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    grid-auto-rows: min-content;
    gap: var(--space-3);
    padding: var(--space-4);
    overflow-y: auto;
    align-content: start;
}

/* Central Connection Zone */
.connection-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.connection-line-visual {
    position: absolute;
    top: 20%;
    bottom: 20%;
    width: 2px;
    background: linear-gradient(180deg,
            transparent 0%,
            var(--beige-dark) 20%,
            var(--beige-dark) 80%,
            transparent 100%);
    opacity: 0.5;
}

.connection-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--bg-white);
    border: 2px dashed var(--beige-dark);
    border-radius: 50%;
    color: var(--text-muted);
    opacity: 0.6;
}

/* ===================================
   CONNECTION CARDS - ENHANCED STATES
   =================================== */
.connection-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3);
    background: var(--bg-white);
    border: 2px solid var(--beige-medium);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 80px;
    position: relative;
    box-shadow: var(--shadow-sm);
}

/* Hover State - Clear feedback */
.connection-card:hover:not(.connected) {
    border-color: var(--orange-light);
    background: linear-gradient(180deg, var(--bg-white) 0%, rgba(245, 168, 130, 0.1) 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(230, 126, 90, 0.2);
}

/* Selected State - Strong visual */
.connection-card.selected {
    border-color: var(--orange-primary);
    background: linear-gradient(135deg, rgba(245, 168, 130, 0.15), rgba(230, 126, 90, 0.25));
    box-shadow:
        0 0 0 4px rgba(230, 126, 90, 0.2),
        0 8px 20px rgba(230, 126, 90, 0.25);
    transform: scale(1.05);
}

.connection-card.selected::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: calc(var(--radius-lg) + 4px);
    border: 2px solid var(--orange-primary);
    opacity: 0.5;
    animation: pulse-ring 1.5s ease infinite;
}

@keyframes pulse-ring {

    0%,
    100% {
        opacity: 0.5;
        transform: scale(1);
    }

    50% {
        opacity: 0.2;
        transform: scale(1.02);
    }
}

/* Connected State - Faded but visible */
.connection-card.connected {
    cursor: default;
    opacity: 0.5;
    transform: scale(0.95);
}

/* Correct Connection - Green highlight */
.connection-card.connected.correct {
    border-color: var(--green-primary);
    background: linear-gradient(135deg, rgba(125, 181, 154, 0.1), rgba(168, 213, 186, 0.2));
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 0 3px rgba(125, 181, 154, 0.3);
}

.connection-card.connected.correct::after {
    content: '✓';
    position: absolute;
    top: -8px;
    right: -8px;
    width: 22px;
    height: 22px;
    background: var(--green-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    box-shadow: var(--shadow-sm);
}

/* Error State - Red shake */
.connection-card.error {
    border-color: var(--error);
    background: linear-gradient(135deg, rgba(229, 115, 115, 0.1), rgba(229, 115, 115, 0.2));
    animation: shake 0.5s ease;
    box-shadow: 0 0 0 3px rgba(229, 115, 115, 0.3);
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-8px);
    }

    40% {
        transform: translateX(8px);
    }

    60% {
        transform: translateX(-6px);
    }

    80% {
        transform: translateX(6px);
    }
}

/* Card Content */
.card-char {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.radical-char {
    color: var(--accent-purple);
}

.kanji-char {
    color: var(--text-primary);
}

.meaning-char {
    font-size: 0.95rem;
    color: var(--text-primary);
    text-align: center;
}

.family-char {
    color: var(--accent-blue);
}

.card-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: var(--space-1);
    text-align: center;
}

/* ===================================
   BOTTOM INSTRUCTION BAR
   =================================== */
.game-instruction-bar {
    display: flex;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--beige-dark);
    flex-shrink: 0;
}

.instruction-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.instruction-step {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--orange-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
}

.instruction-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.instruction-arrow {
    color: var(--orange-light);
    font-size: 1.25rem;
}

/* ===================================
   FEEDBACK OVERLAY - ENHANCED
   =================================== */
.feedback-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--bg-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 1000;
}

.feedback-overlay.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.feedback-overlay.correct {
    border: 3px solid var(--green-primary);
    background: linear-gradient(180deg, var(--bg-white) 0%, rgba(168, 213, 186, 0.2) 100%);
}

.feedback-overlay.incorrect {
    border: 3px solid var(--error);
    background: linear-gradient(180deg, var(--bg-white) 0%, rgba(229, 115, 115, 0.1) 100%);
}

.feedback-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.feedback-icon {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
}

.feedback-icon.correct {
    color: var(--green-primary);
}

.feedback-icon.incorrect {
    color: var(--error);
}

.feedback-text {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
}

.feedback-info {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 280px;
}

/* Game Instructions - Compact */
.game-instructions {
    text-align: center;
    padding: var(--space-2);
    color: var(--text-muted);
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* ===================================
   RESULTS SCREEN
   =================================== */
.results-card {
    background: var(--bg-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
}

.results-header {
    text-align: center;
    margin-bottom: var(--space-5);
}

.results-icon {
    font-size: 4rem;
    margin-bottom: var(--space-3);
}

.results-header h2 {
    font-size: 1.75rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--space-2);
}

.results-header p {
    color: var(--text-secondary);
}

.score-display {
    background: var(--beige-light);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
}

.score-main {
    text-align: center;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--beige-dark);
}

.score-value {
    font-size: 3rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--orange-primary);
    display: block;
}

.score-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.score-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.detail-item {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

.detail-value {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.xp-earned {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: linear-gradient(135deg, var(--accent-gold), #E8B85A);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
}

.xp-icon {
    font-size: 1.25rem;
}

.xp-text {
    color: white;
    font-weight: var(--font-weight-bold);
}

/* Discovered Section */
.discovered-section,
.mistakes-section {
    margin-bottom: var(--space-5);
}

.discovered-section h3,
.mistakes-section h3 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
}

.discovered-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2);
}

.discovered-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-3);
    background: var(--beige-light);
    border-radius: var(--radius-md);
}

.discovered-kanji {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
}

.discovered-meaning {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
}

.mistakes-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.mistake-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(229, 115, 115, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.mistake-source {
    font-weight: var(--font-weight-bold);
}

.mistake-arrow {
    color: var(--text-muted);
}

.mistake-correct {
    color: var(--green-primary);
    font-weight: var(--font-weight-semibold);
}

/* Results Actions */
.results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

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

/* ===================================
   RESPONSIVE - IMMERSIVE GAME
   =================================== */

/* Desktop Large (≥1200px) - Optimal experience */
@media (min-width: 1200px) {
    .game-board {
        grid-template-columns: 1fr 100px 1fr;
        padding: var(--space-5);
    }

    .cards-container {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: var(--space-4);
        padding: var(--space-5);
    }

    .connection-card {
        min-height: 90px;
    }

    .card-char {
        font-size: 2rem;
    }
}

/* Tablet (768px - 1199px) */
@media (max-width: 1199px) and (min-width: 769px) {
    .game-board {
        grid-template-columns: 1fr 60px 1fr;
        padding: var(--space-3);
    }

    .cards-container {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        padding: var(--space-3);
    }

    .connection-card {
        min-height: 70px;
        padding: var(--space-2);
    }

    .card-char {
        font-size: 1.5rem;
    }

    .column-header {
        padding: var(--space-2) var(--space-3);
    }

    .game-mode-badge {
        font-size: 0.8rem;
        padding: var(--space-2) var(--space-3);
    }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {

    /* Top bar adjustments */
    .game-top-bar {
        padding: var(--space-2);
        height: auto;
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .game-mode-badge {
        order: 0;
        font-size: 0.75rem;
        padding: var(--space-1) var(--space-3);
    }

    .game-stats-inline {
        order: 2;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .stat-pill {
        font-size: 0.7rem;
        padding: var(--space-1) var(--space-2);
    }

    /* Switch to vertical stacked layout */
    .game-board {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto 1fr;
        gap: var(--space-2);
        padding: var(--space-2);
    }

    /* Hide central connection zone on mobile */
    .connection-zone {
        display: none;
    }

    .game-column {
        border-radius: var(--radius-lg);
    }

    .left-zone,
    .right-zone {
        border-radius: var(--radius-lg);
    }

    .column-header {
        padding: var(--space-2);
    }

    .column-title {
        font-size: 0.8rem;
    }

    .cards-container {
        grid-template-columns: repeat(auto-fill, minmax(65px, 1fr));
        gap: var(--space-2);
        padding: var(--space-2);
    }

    .connection-card {
        min-height: 60px;
        padding: var(--space-2);
    }

    .card-char {
        font-size: 1.25rem;
    }

    .card-label {
        font-size: 0.6rem;
    }

    /* Hide SVG connection lines */
    .connections-svg {
        display: none;
    }

    /* Simplified instructions */
    .instruction-content {
        flex-wrap: wrap;
        justify-content: center;
    }

    .instruction-text {
        font-size: 0.75rem;
    }

    /* Other screens */
    .game-header {
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .game-title h1 {
        font-size: 1.1rem;
    }

    .game-stats {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .game-main {
        padding: var(--space-3);
    }

    .intro-card,
    .selection-card,
    .results-card {
        padding: var(--space-4);
    }

    .intro-icon {
        font-size: 3rem;
    }

    .intro-card h2 {
        font-size: 1.5rem;
    }

    .intro-features {
        flex-wrap: wrap;
    }

    .mode-btn {
        flex-wrap: wrap;
        padding: var(--space-3);
    }

    .mode-example {
        width: 100%;
        justify-content: center;
        margin-top: var(--space-2);
        margin-left: 0;
    }

    .discovered-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .results-actions {
        flex-direction: column;
    }

    .results-actions .btn {
        width: 100%;
    }
}

/* Small Mobile (< 480px) */
@media (max-width: 480px) {
    .game-top-bar {
        padding: var(--space-1) var(--space-2);
    }

    .game-back-btn {
        width: 32px;
        height: 32px;
    }

    .game-mode-badge {
        font-size: 0.7rem;
    }

    .cards-container {
        grid-template-columns: repeat(auto-fill, minmax(55px, 1fr));
    }

    .connection-card {
        min-height: 50px;
    }

    .card-char {
        font-size: 1.1rem;
    }

    .game-header {
        padding: var(--space-3);
    }

    .back-btn span {
        display: none;
    }

    .intro-features .feature {
        min-width: 70px;
        padding: var(--space-2);
    }

    .level-btn {
        padding: var(--space-3);
    }

    .level-number {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .score-value {
        font-size: 2.5rem;
    }

    .discovered-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Hide instruction bar on very small screens */
    .game-instruction-bar {
        display: none;
    }
}