/**
 * responsive.css - 영어 챌린지 반응형 스타일
 * Mobile-first approach
 */

/* ============================================
   Extra Small Devices (< 375px)
   ============================================ */
@media (max-width: 374px) {
    :root {
        --font-xs: 10px;
        --font-sm: 12px;
        --font-base: 14px;
        --font-lg: 16px;
        --font-xl: 18px;
        --font-2xl: 22px;
        --font-3xl: 26px;
        --space-md: 12px;
        --space-lg: 18px;
        --space-xl: 24px;
    }

    .app-main {
        padding: var(--space-sm);
    }

    .logo-text {
        font-size: var(--font-base);
    }

    .quiz-categories {
        grid-template-columns: 1fr;
    }

    .category-icon {
        font-size: 36px;
    }

    .trophy-podium {
        gap: var(--space-sm);
    }

    .podium-avatar {
        width: 48px;
        height: 48px;
        font-size: 24px;
    }

    .podium-item.rank-1 .podium-avatar {
        width: 64px;
        height: 64px;
        font-size: 32px;
    }

    .podium-stand {
        width: 56px;
    }

    .podium-item.rank-1 .podium-stand { height: 64px; }
    .podium-item.rank-2 .podium-stand { height: 48px; }
    .podium-item.rank-3 .podium-stand { height: 36px; }

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

    .result-stats .result-stat:nth-child(3) {
        grid-column: span 2;
    }
}

/* ============================================
   Small Devices (375px - 480px)
   ============================================ */
@media (min-width: 375px) and (max-width: 480px) {
    .quiz-categories {
        grid-template-columns: 1fr;
    }

    .category-card {
        display: flex;
        align-items: center;
        text-align: left;
        padding: var(--space-lg);
    }

    .category-icon {
        font-size: 40px;
        margin-bottom: 0;
        margin-right: var(--space-md);
    }

    .category-content {
        flex: 1;
    }

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

/* ============================================
   Medium Devices (481px - 768px)
   ============================================ */
@media (min-width: 481px) and (max-width: 768px) {
    .app-main {
        padding: var(--space-lg);
    }

    .quiz-categories {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }

    .trophy-section {
        padding: var(--space-2xl);
    }

    .podium-avatar {
        width: 70px;
        height: 70px;
        font-size: 36px;
    }

    .podium-item.rank-1 .podium-avatar {
        width: 90px;
        height: 90px;
        font-size: 48px;
    }

    .podium-stand {
        width: 80px;
    }

    .podium-item.rank-1 .podium-stand { height: 90px; }
    .podium-item.rank-2 .podium-stand { height: 70px; }
    .podium-item.rank-3 .podium-stand { height: 50px; }

    .modal-content {
        max-width: 450px;
    }
}

/* ============================================
   Large Devices (769px+) - Desktop
   ============================================ */
@media (min-width: 769px) {
    :root {
        --header-height: 64px;
        --nav-height: 0px;
    }

    body.app-style {
        padding-bottom: 0;
    }

    /* Hide bottom navigation on desktop */
    .app-nav-bar {
        display: none;
    }

    /* Desktop Header */
    .app-header {
        height: var(--header-height);
    }

    .header-content {
        max-width: 1200px;
    }

    /* Desktop Slide Menu - Convert to top menu */
    .slide-menu {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        box-shadow: none;
        transform: none;
        display: flex;
        align-items: center;
    }

    .menu-header {
        display: none;
    }

    .menu-list {
        display: flex;
        padding: 0;
        gap: var(--space-sm);
    }

    .menu-section {
        display: none;
    }

    .menu-list li a {
        padding: var(--space-sm) var(--space-md);
        color: var(--text-white);
        border-radius: var(--radius-md);
    }

    .menu-list li a:hover,
    .menu-list li a.active {
        background: rgba(255, 255, 255, 0.2);
        color: var(--text-white);
    }

    .menu-list li a span:first-child {
        display: none;
    }

    .menu-toggle {
        display: none;
    }

    .menu-overlay {
        display: none;
    }

    /* Desktop Main Content */
    .app-main {
        max-width: 1200px;
        padding: var(--space-xl);
        min-height: calc(100vh - var(--header-height));
    }

    /* Desktop Quiz Categories */
    .quiz-categories {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-lg);
    }

    .category-card {
        padding: var(--space-2xl) var(--space-lg);
    }

    .category-icon {
        font-size: 56px;
    }

    /* Desktop Trophy Section */
    .trophy-section {
        padding: var(--space-2xl) var(--space-xl);
    }

    .trophy-podium {
        gap: var(--space-xl);
    }

    .podium-avatar {
        width: 80px;
        height: 80px;
        font-size: 40px;
    }

    .podium-item.rank-1 .podium-avatar {
        width: 100px;
        height: 100px;
        font-size: 56px;
    }

    .podium-stand {
        width: 100px;
    }

    .podium-item.rank-1 .podium-stand { height: 100px; }
    .podium-item.rank-2 .podium-stand { height: 80px; }
    .podium-item.rank-3 .podium-stand { height: 60px; }

    .podium-name {
        font-size: var(--font-base);
        max-width: 100px;
    }

    /* Desktop Ranking List */
    .ranking-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .ranking-item {
        padding: var(--space-lg);
    }

    .rank-avatar {
        width: 52px;
        height: 52px;
        font-size: 28px;
    }

    /* Desktop Quiz Game */
    .quiz-container {
        max-width: 700px;
    }

    .quiz-question-card {
        padding: var(--space-2xl);
    }

    .quiz-question {
        font-size: var(--font-2xl);
    }

    .quiz-options {
        gap: var(--space-md);
    }

    .quiz-option {
        padding: var(--space-lg) var(--space-xl);
        font-size: var(--font-lg);
    }

    /* Desktop Result */
    .result-emoji {
        font-size: 100px;
    }

    .result-title {
        font-size: var(--font-3xl);
    }

    .result-score {
        font-size: 64px;
    }

    .result-stats {
        max-width: 500px;
        margin: 0 auto var(--space-xl);
    }

    /* Desktop Modals */
    .modal-content {
        max-width: 500px;
    }

    /* Desktop Cards */
    .card {
        padding: var(--space-xl);
    }

    /* Desktop Sections */
    .section {
        padding: var(--space-xl);
    }
}

/* ============================================
   Extra Large Devices (1200px+)
   ============================================ */
@media (min-width: 1200px) {
    .app-main {
        max-width: 1400px;
    }

    .quiz-categories {
        gap: var(--space-xl);
    }

    .category-card {
        padding: var(--space-2xl);
    }

    .category-icon {
        font-size: 64px;
        margin-bottom: var(--space-lg);
    }

    .category-name {
        font-size: var(--font-xl);
    }
}

/* ============================================
   Landscape Mode (Mobile)
   ============================================ */
@media (max-width: 768px) and (orientation: landscape) {
    :root {
        --header-height: 48px;
        --nav-height: 56px;
    }

    .trophy-section {
        padding: var(--space-lg);
    }

    .trophy-podium {
        transform: scale(0.85);
    }

    .quiz-question-card {
        padding: var(--space-md);
    }

    .quiz-question {
        font-size: var(--font-lg);
        margin-bottom: var(--space-md);
    }

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

    .quiz-option {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-sm);
    }

    .option-letter {
        width: 28px;
        height: 28px;
        font-size: var(--font-xs);
    }

    .result-emoji {
        font-size: 60px;
    }
}

/* ============================================
   High DPI / Retina Displays
   ============================================ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .progress-bar {
        height: 6px;
    }

    .hamburger,
    .hamburger::before,
    .hamburger::after {
        height: 1.5px;
    }
}

/* ============================================
   Hover States (Only for devices that support hover)
   ============================================ */
@media (hover: hover) {
    .btn:hover:not(:disabled) {
        transform: translateY(-2px);
    }

    .card-hover:hover {
        transform: translateY(-4px);
    }

    .category-card:hover {
        transform: translateY(-8px);
    }

    .ranking-item:hover {
        background: var(--bg-secondary);
    }

    .quiz-option:hover:not(:disabled):not(.correct):not(.incorrect) {
        transform: translateX(4px);
    }
}

/* ============================================
   Touch Devices
   ============================================ */
@media (hover: none) {
    .btn:active {
        transform: scale(0.98);
    }

    .category-card:active {
        transform: scale(0.98);
    }

    .quiz-option:active:not(:disabled) {
        transform: scale(0.98);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .app-header,
    .app-nav-bar,
    .slide-menu,
    .menu-overlay,
    .modal,
    .toast-container,
    #confettiCanvas {
        display: none !important;
    }

    body.app-style {
        padding: 0;
    }

    .app-main {
        max-width: 100%;
        padding: 20px;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    a {
        text-decoration: underline;
    }

    .btn {
        border: 1px solid #333;
    }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .slide-menu {
        transition: none;
    }

    .modal-content {
        transition: none;
    }
}

/* ============================================
   Safe Area Insets (iPhone X, etc.)
   ============================================ */
@supports (padding: max(0px)) {
    .app-header {
        padding-top: max(0px, env(safe-area-inset-top));
    }

    .app-nav-bar {
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }

    .slide-menu {
        padding-top: max(0px, env(safe-area-inset-top));
    }

    .modal-content {
        margin: max(var(--space-md), env(safe-area-inset-top)) max(var(--space-md), env(safe-area-inset-right)) max(var(--space-md), env(safe-area-inset-bottom)) max(var(--space-md), env(safe-area-inset-left));
    }
}