@import url('design-tokens.css');

/* ============================================================
   style.css · 主页样式
   所有设计值引用 design-tokens.css 中的 CSS 变量
   ============================================================ */

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

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--ink);
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-5);
}

/* 首页样式 */
.home-header {
    text-align: center;
    padding: var(--space-6) 0 var(--space-3);
    position: relative;
}

/* 主页 Banner */
.home-banner {
    margin: 0 0 var(--space-4);
    height: 160px;
}
.ui-level-banner.home-banner img { object-position: center top; }
@media (min-width: 768px) { .home-banner { height: 200px; } }
@media (min-width: 1024px) { .home-banner { height: 220px; } }

/* 统计条 */
.home-stats {
    display: flex; align-items: center; justify-content: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.home-stat-item {
    display: flex; flex-direction: column; align-items: center;
    flex: 1; padding: 0 var(--space-3);
}
.home-stat-num {
    font-size: var(--text-2xl); font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}
.home-stat-label {
    font-size: var(--text-xs); color: var(--muted); margin-top: 2px;
}
.home-stat-divider {
    width: 1px; height: 28px; background: var(--border);
    flex-shrink: 0;
}

.settings-btn {
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-size: var(--text-xl);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    line-height: 1;
}
.settings-btn:hover {
    transform: rotate(45deg);
    box-shadow: var(--shadow-md);
}

.home-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.home-subtitle {
    font-size: var(--text-base);
    color: var(--muted);
}

.game-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* 分类区块 */
.category-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text);
    padding-left: var(--space-2);
    border-left: 3px solid var(--primary);
    line-height: 1;
}

.category-emoji {
    font-size: var(--text-lg);
}

/* 响应式网格：手机2列 / 平板3列 / 桌面4列 */
.game-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}
@media (min-width: 481px) { .game-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) { .game-grid { grid-template-columns: repeat(4, 1fr); } }

.game-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-4) var(--space-3);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    border-top: 4px solid var(--border);
    /* 入场动画 */
    opacity: 0;
    transform: translateY(12px);
    animation: cardFadeIn 0.4s var(--ease-out) forwards;
}
@keyframes cardFadeIn {
    to { opacity: 1; transform: translateY(0); }
}
/* 交错延迟（每个分类网格内） */
.game-grid .game-card:nth-child(1) { animation-delay: 0.05s; }
.game-grid .game-card:nth-child(2) { animation-delay: 0.10s; }
.game-grid .game-card:nth-child(3) { animation-delay: 0.15s; }
.game-grid .game-card:nth-child(4) { animation-delay: 0.20s; }

.game-card.available:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.18);
}
.game-card.available:hover .game-icon {
    transform: scale(1.08) rotate(-3deg);
}
.game-card.available:active {
    transform: scale(0.98);
}

.game-card.coming-soon {
    opacity: 0.5;
    cursor: not-allowed;
    border-top-color: var(--border);
}

.game-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-bg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    flex-shrink: 0;
    transition: transform var(--duration-normal) var(--ease-spring);
}

/* 各游戏独立配色：图标渐变背景 + 卡片顶部色条 */
.game-color-skyscraper { border-top-color: #3b82f6; }
.game-color-skyscraper .game-icon { background: linear-gradient(135deg, #60a5fa, #3b82f6); }

.game-color-arithmetic { border-top-color: #f59e0b; }
.game-color-arithmetic .game-icon { background: linear-gradient(135deg, #fbbf24, #f59e0b); }

.game-color-shikaku { border-top-color: #10b981; }
.game-color-shikaku .game-icon { background: linear-gradient(135deg, #34d399, #10b981); }

.game-color-queue { border-top-color: #8b5cf6; }
.game-color-queue .game-icon { background: linear-gradient(135deg, #a78bfa, #8b5cf6); }

.game-color-blocks { border-top-color: #ef4444; }
.game-color-blocks .game-icon { background: linear-gradient(135deg, #f87171, #ef4444); }

.game-color-observe { border-top-color: #06b6d4; }
.game-color-observe .game-icon { background: linear-gradient(135deg, #22d3ee, #06b6d4); }

.game-color-hanoi { border-top-color: #eab308; }
.game-color-hanoi .game-icon { background: linear-gradient(135deg, #facc15, #eab308); }

.game-color-orchestra { border-top-color: #ec4899; }
.game-color-orchestra .game-icon { background: linear-gradient(135deg, #f472b6, #ec4899); }

.game-info {
    width: 100%;
}

.game-info h3 {
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: 2px;
}

.game-info p {
    font-size: var(--text-xs);
    color: var(--muted);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.game-tag {
    display: inline-block;
    padding: 2px var(--space-2);
    background: var(--primary-bg);
    color: var(--primary);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.game-tag.tag-new {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #059669;
    font-weight: 600;
}

.game-tag.tag-coming {
    background: var(--surface-2);
    color: var(--muted);
}

/* 响应式 */
@media (max-width: 480px) {
    .container {
        padding: var(--space-4);
    }

    .home-header {
        padding: var(--space-3) 0;
    }
}

/* ============================================================
   设置弹窗样式
   ============================================================ */
.settings-card {
    max-width: 380px;
    text-align: left;
}

.settings-section {
    margin-bottom: var(--space-5);
}

.settings-section-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--muted);
    margin-bottom: var(--space-3);
}

.settings-mode-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.settings-mode-option {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    background: var(--surface);
}

.settings-mode-option:hover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.settings-mode-option.active {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.settings-mode-icon {
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.settings-mode-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--ink);
    flex-shrink: 0;
}

.settings-mode-desc {
    font-size: var(--text-xs);
    color: var(--muted);
    margin-left: auto;
}

/* ============================================================
   显示模式覆盖（通过 <html> 上的 class 控制）
   ============================================================ */

/* 强制手机模式：即使窗口很宽，也用窄列单栏 */
html.force-mobile body {
    max-width: 430px;
    margin: 0 auto;
    box-shadow: -1px 0 0 var(--border), 1px 0 0 var(--border);
    min-height: 100vh;
}

html.force-mobile .container {
    max-width: 100%;
}

html.force-mobile .game-container {
    max-width: var(--width-game);
    flex-direction: column !important;
    flex-wrap: nowrap !important;
}

html.force-mobile .game-container > .game-display-area {
    flex: 1;
    margin-right: 0;
    margin-bottom: 20px;
}

html.force-mobile .game-container > .answer-area {
    flex: none;
    padding-bottom: 20px;
}

/* 强制桌面模式：即使窗口很窄，也用双栏 */
html.force-desktop .container {
    max-width: 760px;
}

html.force-desktop .game-container {
    max-width: 820px;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    align-items: center;
}

html.force-desktop .game-container > .game-header {
    flex-basis: 100%;
}

html.force-desktop .game-container > .game-display-area {
    flex: 1;
    margin-bottom: 0;
    margin-right: 24px;
    justify-content: center;
}

html.force-desktop .game-container > .answer-area {
    flex: 0 0 340px;
    justify-content: center;
    padding-bottom: 0;
}