/* public/assets/css/life/countdown-timer.css */

.cdt-workspace { display: flex; flex-direction: column; gap: 24px; width: 100%; margin-bottom: 40px; }

/* PC端采用左右分栏排版 */
@media (min-width: 900px) {
    .cdt-workspace { flex-direction: row; align-items: stretch; }
    .cdt-setup-panel { flex: 1; max-width: 380px; }
    .cdt-display-panel { flex: 2; min-width: 0; overflow: hidden; } /* 防止内部元素撑破容器 */
}

.cdt-panel { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02); overflow: hidden; display: flex; flex-direction: column; }
.cdt-panel-header { padding: 16px 24px; border-bottom: 1px solid var(--border-color); background: rgba(0,0,0,0.01); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;}
.cdt-panel-header h3 { margin: 0; font-size: 1.1rem; font-weight: 700; color: var(--text-main); }
.cdt-panel-body { padding: 24px; flex: 1; }

/* =========================================================
   设置面板 (Form)
   ========================================================= */
.cdt-quick-presets { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cdt-preset-btn { background: rgba(0,0,0,0.04); border: none; padding: 4px 10px; border-radius: 4px; font-size: 0.8rem; cursor: pointer; color: var(--text-main); font-weight: 600; transition: 0.2s;}
.cdt-preset-btn:hover { background: rgba(var(--primary-rgb, 0,102,204), 0.1); color: var(--primary-color); }

.cdt-form-grid { display: flex; flex-direction: column; gap: 20px; position: relative;}
.cdt-form-group { display: flex; flex-direction: column; gap: 8px; }
.cdt-form-group label { font-size: 0.95rem; font-weight: 700; color: var(--text-main); }

.cdt-input { width: 100%; padding: 14px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-body); color: var(--text-main); font-size: 1rem; font-family: 'Inter', sans-serif; outline: none; transition: 0.2s; box-sizing: border-box; }
.cdt-input:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(var(--primary-rgb, 0, 102, 204), 0.1); }

.cdt-form-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }
.cdt-btn-primary, .cdt-btn-secondary { width: 100%; display: flex; align-items: center; justify-content: center; gap: 8px; border: none; border-radius: 8px; padding: 14px; font-size: 1rem; font-weight: 700; cursor: pointer; transition: 0.3s; }
.cdt-btn-primary { background: var(--primary-color); color: white; box-shadow: 0 4px 10px rgba(var(--primary-rgb, 0, 102, 204), 0.2); }
.cdt-btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }
.cdt-btn-secondary { background: var(--bg-body); border: 1px solid var(--border-color); color: var(--text-main); }
.cdt-btn-secondary:hover { background: rgba(0,0,0,0.05); }

.cdt-toast { position: absolute; bottom: -10px; left: 0; right: 0; text-align: center; background: #10b981; color: white; padding: 8px; border-radius: 6px; font-size: 0.85rem; font-weight: 600; animation: cdtFadeIn 0.3s forwards; }
@keyframes cdtFadeIn { from { opacity: 0; transform: translateY(10px);} to { opacity: 1; transform: translateY(0);} }

/* =========================================================
   巨幕显示面板 (Clock Display) - 流体排版升级
   ========================================================= */
.cdt-display-panel { background: linear-gradient(135deg, var(--bg-body) 0%, var(--bg-surface) 100%); display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 40px 20px; }

.cdt-display-header { text-align: center; margin-bottom: 40px; width: 100%; }
.cdt-event-title { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 900; margin: 0 0 10px 0; color: var(--text-main); word-break: break-word; line-height: 1.2; letter-spacing: -1px;}
.cdt-event-status { font-size: 1.1rem; font-weight: 700; color: var(--primary-color); text-transform: uppercase; letter-spacing: 2px;}

/* ★ 核心修复 1：强制不换行，并使用流体间距 */
.cdt-clock-grid { 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    flex-wrap: nowrap; 
    gap: clamp(4px, 1.5vw, 12px); 
    width: 100%; 
}

/* ★ 核心修复 2：卡片宽度和内边距流体化，防止挤爆 */
.cdt-time-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(10px, 2vw, 20px) clamp(8px, 1.5vw, 15px);
    min-width: clamp(70px, 10vw, 100px);
    text-align: center;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.cdt-time-card.highlight-sec { background: rgba(var(--primary-rgb, 0,102,204), 0.05); border-color: rgba(var(--primary-rgb, 0,102,204), 0.3); }
.cdt-time-card.highlight-sec .cdt-time-value { color: var(--primary-color); }

/* ★ 核心修复 3：数字字体大小采用 clamp 动态缩放 */
.cdt-time-value { font-size: clamp(2.2rem, 4vw, 4rem); font-weight: 800; line-height: 1; font-family: 'Inter', monospace; color: var(--text-main); font-variant-numeric: tabular-nums; letter-spacing: -2px;}
.cdt-time-label { font-size: clamp(0.7rem, 1.5vw, 0.9rem); font-weight: 700; color: var(--text-muted); margin-top: 8px; text-transform: uppercase; letter-spacing: 1px;}
.cdt-time-separator { font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 700; color: var(--border-color); padding-bottom: clamp(15px, 3vw, 30px);}

/* =========================================================
   移动端极致自适应 (小于 600px 时)
   ========================================================= */
@media (max-width: 600px) {
    /* 手机端彻底改为 2x2 网格，完全消除横向溢出风险 */
    .cdt-clock-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; width: 100%; max-width: 320px; }
    .cdt-time-separator { display: none; }
    .cdt-time-card { min-width: 0; padding: 15px 10px; }
    .cdt-time-value { font-size: 2.5rem; letter-spacing: -1px; }
}

/* =========================================================
   SEO Matrix
   ========================================================= */
.tool-seo-content { margin-top: 50px; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 40px; overflow: hidden; }
.tool-seo-content h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); font-weight: 800; margin-bottom: 20px; color: var(--text-main); line-height: 1.3;}
.seo-intro-section { margin-bottom: 40px; }
.seo-lead-text { font-size: 1rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 15px;}
.seo-sub-heading { font-size: 1.4rem; font-weight: 700; margin-bottom: 20px; color: var(--text-main); border-left: 4px solid var(--primary-color); padding-left: 12px;}

.seo-feature-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.seo-feature-card { background: var(--bg-body); border: 1px solid var(--border-color); padding: 24px; border-radius: 12px; transition: all 0.3s ease; }
.seo-feature-card:hover { border-color: var(--primary-color); transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0, 102, 204, 0.08); }
.seo-feature-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.seo-icon { width: 40px; height: 40px; min-width: 40px; color: var(--primary-color); background: rgba(var(--primary-rgb, 0, 102, 204), 0.1); border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.seo-icon svg { width: 20px; height: 20px; }
.seo-feature-card h3 { font-size: 1.1rem; font-weight: 700; margin: 0; color: var(--text-main); line-height: 1.4;}
.seo-feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

/* ★ 核心修复 4：补充平板与移动端的 SEO 网格折叠代码，防止溢出 */
@media (max-width: 900px) {
    .seo-feature-grid-3 { grid-template-columns: 1fr; gap: 16px; }
    .tool-seo-content { padding: 24px; }
}

/* 暗黑模式适配 */
[data-theme="dark"] .tool-seo-content { background: var(--bg-surface); }
[data-theme="dark"] .seo-feature-card { background: #0f172a; border-color: #334155; }
[data-theme="dark"] .cdt-input { background: #0f172a; border-color: #334155; }
[data-theme="dark"] .cdt-btn-secondary { background: #1e293b; border-color: #334155; color: #f8fafc; }
[data-theme="dark"] .cdt-time-card { background: #0f172a; border-color: #334155; box-shadow: 0 10px 25px -5px rgba(0,0,0,0.5); }