/* ===================================
   L'Atelier des Kanji - Kana no Toki
   Survival Mode Stylesheet (Enhanced UI)
   =================================== */

/* CSS Variables (matching design system) */
: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;
    --bg-cream: #F9F5F0;

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

    /* Accent Colors */
    --accent-gold: #D4A84B;
    --accent-pink: #E8A8B8;
    --accent-blue: #5A9BC9;
    --accent-red: #E85A5A;

    /* HP Colors (stronger contrast) */
    --hp-green: #2E7D32;
    --hp-green-light: #66BB6A;
    --hp-yellow: #F9A825;
    --hp-yellow-light: #FFD54F;
    --hp-red: #C62828;
    --hp-red-light: #EF5350;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(61, 58, 54, 0.08);
    --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 scale */
    --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;
}

/* 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-color: var(--bg-light);
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===================================
   HEADER
   =================================== */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-5);
    background: var(--bg-white);
    border-bottom: 1px solid var(--beige-medium);
    position: sticky;
    top: 0;
    z-index: 100;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

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

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

.game-title h1 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.header-spacer {
    width: 80px;
}

/* ===================================
   HP BANNER (Very Prominent)
   =================================== */
.hp-banner {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-5);
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-bottom: 2px solid var(--hp-green-light);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 52px;
    z-index: 99;
}

.hp-banner.warning {
    background: linear-gradient(135deg, #FFF8E1 0%, #FFECB3 100%);
    border-bottom-color: var(--hp-yellow);
}

.hp-banner.critical {
    background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
    border-bottom-color: var(--hp-red-light);
    animation: hpBannerPulse 0.8s ease infinite;
}

@keyframes hpBannerPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.85;
    }
}

.hp-banner-left {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 140px;
}

.hp-icon {
    font-size: 1.5rem;
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {

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

    15% {
        transform: scale(1.15);
    }

    30% {
        transform: scale(1);
    }

    45% {
        transform: scale(1.1);
    }
}

.hp-label {
    font-size: 0.85rem;
    font-weight: var(--font-weight-semibold);
    color: var(--hp-green);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hp-banner.warning .hp-label {
    color: var(--hp-yellow);
}

.hp-banner.critical .hp-label {
    color: var(--hp-red);
}

.hp-bar-wrapper {
    flex: 1;
    min-width: 100px;
}

.hp-bar-track {
    height: 16px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-full);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1), var(--shadow-sm);
    border: 2px solid rgba(46, 125, 50, 0.3);
}

.hp-banner.warning .hp-bar-track {
    border-color: rgba(249, 168, 37, 0.4);
}

.hp-banner.critical .hp-bar-track {
    border-color: rgba(198, 40, 40, 0.4);
}

.hp-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--hp-green) 0%, var(--hp-green-light) 100%);
    border-radius: var(--radius-full);
    transition: width 0.3s ease, background 0.3s ease;
    box-shadow: 0 0 8px rgba(46, 125, 50, 0.4);
}

.hp-bar-fill.warning {
    background: linear-gradient(90deg, var(--hp-yellow) 0%, var(--hp-yellow-light) 100%);
    box-shadow: 0 0 8px rgba(249, 168, 37, 0.5);
}

.hp-bar-fill.critical {
    background: linear-gradient(90deg, var(--hp-red) 0%, var(--hp-red-light) 100%);
    box-shadow: 0 0 8px rgba(198, 40, 40, 0.5);
    animation: hpBarPulse 0.5s ease infinite;
}

@keyframes hpBarPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

.hp-banner-right {
    display: flex;
    align-items: baseline;
    gap: 2px;
    min-width: 80px;
    justify-content: flex-end;
}

.hp-current {
    font-size: 1.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--hp-green);
    line-height: 1;
}

.hp-banner.warning .hp-current {
    color: var(--hp-yellow);
}

.hp-banner.critical .hp-current {
    color: var(--hp-red);
}

.hp-separator {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
}

.hp-max {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
}

/* HP Damage Animation */
.hp-banner.damage {
    animation: hpDamageShake 0.4s ease;
}

@keyframes hpDamageShake {

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

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

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

    60% {
        transform: translateX(-4px);
    }

    80% {
        transform: translateX(4px);
    }
}

/* ===================================
   IN-GAME STATS BAR
   =================================== */
.ingame-stats-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-white);
    border-bottom: 1px solid var(--beige-medium);
    flex-wrap: wrap;
}

.stat-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--beige-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.score-badge {
    background: linear-gradient(135deg, #FFF8E1, #FFECB3);
    border: 1px solid #FFD54F;
}

.level-badge {
    background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
    border: 1px solid #64B5F6;
}

.badge-icon {
    font-size: 1.3rem;
}

.badge-value {
    font-size: 1.4rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    min-width: 30px;
    text-align: center;
}

.badge-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* ===================================
   TIMER BADGE (Pill Shape, Prominent)
   =================================== */
.timer-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    min-width: 120px;
    justify-content: center;
}

.timer-badge.comfortable {
    background: linear-gradient(135deg, var(--accent-blue), #4FC3F7);
    color: var(--text-inverse);
}

.timer-badge.warning {
    background: linear-gradient(135deg, var(--hp-yellow), #FFB300);
    color: var(--text-primary);
    animation: timerWarningPulse 0.8s ease infinite;
}

.timer-badge.overtime {
    background: linear-gradient(135deg, var(--hp-red), #F44336);
    color: var(--text-inverse);
    animation: timerOvertimePulse 0.4s ease infinite;
}

@keyframes timerWarningPulse {

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

    50% {
        transform: scale(1.03);
    }
}

@keyframes timerOvertimePulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 4px 20px rgba(198, 40, 40, 0.5);
    }
}

.timer-icon {
    font-size: 1.3rem;
}

.timer-value {
    font-size: 1.6rem;
    font-weight: var(--font-weight-extrabold);
    min-width: 40px;
    text-align: right;
}

.timer-unit {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    opacity: 0.9;
}

/* ===================================
   MAIN CONTENT
   =================================== */
.game-main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: var(--space-5);
    padding-top: var(--space-4);
}

.screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 600px;
}

/* ===================================
   INTRO & SELECTION CARDS
   =================================== */
.intro-card,
.selection-card,
.results-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-7);
    text-align: center;
    width: 100%;
}

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

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

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

.intro-text {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

/* ===================================
   SELECTION OPTIONS
   =================================== */
.section-label {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--space-5) 0 var(--space-2);
    text-align: left;
}

.section-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: left;
    margin-bottom: var(--space-3);
}

.mode-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

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

.mode-btn:hover {
    background: var(--beige-medium);
}

.mode-btn.selected {
    border-color: var(--orange-primary);
    background: rgba(230, 126, 90, 0.1);
}

.mode-btn .mode-icon {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--orange-primary);
    min-width: 80px;
}

.mode-info h3 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.mode-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Time Selector */
.time-selector {
    margin-bottom: var(--space-5);
}

.time-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.time-btn {
    min-width: 50px;
    padding: var(--space-2) var(--space-3);
    background: var(--beige-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.time-btn:hover {
    background: var(--beige-medium);
}

.time-btn.active {
    border-color: var(--orange-primary);
    background: var(--orange-primary);
    color: var(--text-inverse);
}

.time-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-2);
}

.time-value {
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--orange-primary);
}

.time-unit {
    font-size: 1rem;
    color: var(--text-muted);
}

/* Rules Summary */
.rules-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    margin-bottom: var(--space-5);
    padding: var(--space-4);
    background: var(--beige-light);
    border-radius: var(--radius-lg);
}

.rule-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.rule-icon {
    font-size: 1.1rem;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.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:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 126, 90, 0.4);
}

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

.btn-outline {
    background: var(--bg-white);
    color: var(--text-secondary);
    border: 2px solid var(--beige-medium);
}

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

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

/* ===================================
   GAME CARD
   =================================== */
.game-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-6);
    width: 100%;
    max-width: 500px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-fast);
}

.game-card.flash-correct {
    animation: flashCorrect 0.3s ease;
}

.game-card.flash-incorrect {
    animation: flashIncorrect 0.3s ease;
}

.game-card.shake {
    animation: shake 0.3s ease;
}

@keyframes flashCorrect {

    0%,
    100% {
        box-shadow: var(--shadow-lg);
    }

    50% {
        box-shadow: 0 0 30px rgba(125, 181, 154, 0.6);
    }
}

@keyframes flashIncorrect {

    0%,
    100% {
        box-shadow: var(--shadow-lg);
    }

    50% {
        box-shadow: 0 0 30px rgba(232, 90, 90, 0.5);
    }
}

@keyframes shake {

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

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* Difficulty Badge */
.difficulty-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-1);
}

.diff-level {
    font-size: 0.7rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.diff-kana {
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    color: var(--green-primary);
    background: var(--green-light);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

/* Damage Overlay */
.damage-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--accent-red);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    text-shadow: 0 2px 10px rgba(232, 90, 90, 0.5);
}

.damage-overlay.show {
    opacity: 1;
    animation: damageFloat 0.5s ease forwards;
}

@keyframes damageFloat {
    0% {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 0;
    }

    50% {
        transform: translate(-50%, -70%) scale(1.2);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, -90%) scale(1);
        opacity: 0;
    }
}

/* ===================================
   STIMULUS DISPLAY
   =================================== */
.stimulus-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    margin-bottom: var(--space-5);
}

.display-kana {
    font-size: 5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
    text-align: center;
}

.display-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

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

/* ===================================
   ANSWER GRID
   =================================== */
.answer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.answer-btn {
    padding: var(--space-4);
    background: var(--beige-light);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    min-height: 70px;
}

.answer-btn:hover:not(:disabled) {
    background: var(--beige-medium);
    transform: translateY(-2px);
}

.answer-btn:active:not(:disabled) {
    transform: translateY(0);
}

.answer-btn.correct {
    background: var(--green-light);
    border-color: var(--green-primary);
    color: var(--green-dark);
}

.answer-btn.incorrect {
    background: #FDEAEA;
    border-color: var(--accent-red);
    color: var(--accent-red);
}

/* ===================================
   FEEDBACK
   =================================== */
.feedback {
    margin-top: var(--space-4);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: all var(--transition-normal);
}

.feedback.show {
    max-height: 100px;
    opacity: 1;
}

.feedback-content {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-md);
}

.feedback.correct .feedback-content.correct,
.feedback.incorrect .feedback-content.incorrect {
    display: flex;
}

.feedback-content.correct {
    background: var(--green-light);
    color: var(--green-dark);
}

.feedback-content.incorrect {
    background: #FDEAEA;
    color: var(--accent-red);
}

.feedback-icon {
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
}

.feedback-text {
    font-weight: var(--font-weight-medium);
}

.damage-text {
    font-weight: var(--font-weight-bold);
}

/* ===================================
   LEVEL UP NOTIFICATION
   =================================== */
.level-up-notification {
    position: fixed;
    top: 160px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--green-light), var(--green-primary));
    color: var(--text-inverse);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    font-weight: var(--font-weight-bold);
    opacity: 0;
    transition: all 0.4s ease;
    z-index: 200;
}

.level-up-notification.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.level-up-icon {
    font-size: 1.5rem;
}

.level-up-text {
    font-size: 1.1rem;
}

/* ===================================
   RESULTS
   =================================== */
.results-card {
    max-width: 500px;
}

.results-header {
    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);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

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

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

.score-main {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.score-value {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--orange-primary);
    line-height: 1;
}

.score-label {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
}

.score-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.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), #F0C060);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
}

.xp-icon {
    font-size: 1.5rem;
}

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

/* Vocabulary Section */
.vocabulary-learned {
    margin-bottom: var(--space-5);
    text-align: left;
}

.vocabulary-learned h3 {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-3);
}

.vocabulary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-2);
}

.vocab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2);
    background: var(--green-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--green-primary);
}

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

.vocab-romaji {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.vocab-meaning {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-style: italic;
}

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

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

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 600px) {
    .game-header {
        padding: var(--space-2) var(--space-3);
    }

    .back-btn span {
        display: none;
    }

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

    .game-icon {
        font-size: 1.3rem;
    }

    .header-spacer {
        display: none;
    }

    /* HP Banner Mobile */
    .hp-banner {
        flex-wrap: wrap;
        gap: var(--space-2);
        padding: var(--space-2) var(--space-3);
        top: 44px;
    }

    .hp-banner-left {
        min-width: auto;
        flex: 0 0 auto;
    }

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

    .hp-icon {
        font-size: 1.2rem;
    }

    .hp-bar-wrapper {
        order: 3;
        flex: 0 0 100%;
        margin-top: var(--space-1);
    }

    .hp-bar-track {
        height: 12px;
    }

    .hp-banner-right {
        min-width: auto;
    }

    .hp-current {
        font-size: 1.2rem;
    }

    /* Stats Bar Mobile */
    .ingame-stats-bar {
        gap: var(--space-2);
        padding: var(--space-2) var(--space-3);
    }

    .stat-badge {
        padding: var(--space-1) var(--space-3);
    }

    .badge-icon {
        font-size: 1.1rem;
    }

    .badge-value {
        font-size: 1.2rem;
        min-width: 24px;
    }

    .badge-label {
        font-size: 0.65rem;
    }

    .timer-badge {
        padding: var(--space-2) var(--space-4);
        min-width: 100px;
    }

    .timer-icon {
        font-size: 1.1rem;
    }

    .timer-value {
        font-size: 1.3rem;
        min-width: 32px;
    }

    .timer-unit {
        font-size: 0.85rem;
    }

    /* Main Game */
    .game-main {
        padding: var(--space-3);
        padding-top: var(--space-2);
    }

    .intro-card,
    .selection-card,
    .results-card,
    .game-card {
        padding: var(--space-5);
    }

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

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

    .display-kana {
        font-size: 4rem;
    }

    .display-romaji {
        font-size: 2.5rem;
    }

    .answer-btn {
        padding: var(--space-3);
        font-size: 1.1rem;
        min-height: 60px;
    }

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

    .mode-btn .mode-icon {
        min-width: 60px;
        font-size: 1.1rem;
    }

    .time-btn {
        min-width: 44px;
        padding: var(--space-2);
        font-size: 0.9rem;
    }

    .time-value {
        font-size: 2rem;
    }

    .rules-summary {
        grid-template-columns: 1fr;
    }

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

    .score-details {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

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

    .level-up-notification {
        top: 180px;
        padding: var(--space-3) var(--space-4);
        font-size: 0.95rem;
    }
}

@media (max-width: 400px) {
    .display-kana {
        font-size: 3.5rem;
    }

    .answer-btn {
        font-size: 1rem;
        min-height: 56px;
    }

    .hp-bar-track {
        height: 10px;
    }

    .timer-badge {
        min-width: 90px;
    }
}