/* public/assets/css/video/m3u-converter.css */

.cvt-wrapper { padding: 32px; border-radius: var(--radius-lg); }
.cvt-header { text-align: center; margin-bottom: 32px; }
.cvt-title { font-size: 2rem; font-weight: 800; color: var(--text-main); margin-bottom: 12px; letter-spacing: -0.5px; }
.cvt-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 700px; margin: 0 auto; line-height: 1.6; }

/* 🌟 核心布局重构：自上而下的通栏垂直堆叠 */
.cvt-workspace { display: flex; flex-direction: column; gap: 24px; max-width: 1000px; margin: 0 auto; align-items: stretch; }

.cvt-panel { background: var(--bg-surface); padding: 20px; border: 1px solid var(--border-color); border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.03); display: flex; flex-direction: column; }
.cvt-panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; border-bottom: 1px dashed var(--border-color); padding-bottom: 12px; }
.cvt-panel-title { font-size: 1.1rem; font-weight: 700; color: var(--text-main); margin: 0; }

/* 文本域：加大显示面积 */
.cvt-textarea { flex: 1; width: 100%; min-height: 280px; padding: 16px; border: 1.5px solid var(--border-color); border-radius: 12px; font-size: 0.95rem; background: var(--bg-body); color: var(--text-main); outline: none; transition: 0.2s; box-sizing: border-box; resize: vertical; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; line-height: 1.6; white-space: pre; overflow-wrap: normal; overflow-x: auto; }
.cvt-textarea:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15); }
.cvt-output { background: #1e293b; color: #a5b4fc; border-color: #334155; }
.cvt-output:focus { border-color: #6366f1; box-shadow: inset 0 0 0 1px #6366f1; }

/* 中间操作区：水平排布 */
.cvt-actions-wrapper { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 10px 0; }
.cvt-action-badge { font-size: 0.85rem; color: #10b981; background: rgba(16, 185, 129, 0.1); padding: 6px 16px; border-radius: 20px; font-weight: bold; border: 1px dashed rgba(16, 185, 129, 0.3); }

.cvt-action-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; width: 100%; }
.cvt-btn-hero { width: 260px; border: none; padding: 16px; border-radius: 12px; font-size: 1.1rem; font-weight: 800; cursor: pointer; transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,0.2); display: flex; justify-content: center; align-items: center; gap: 8px; }
.cvt-btn-hero:hover { transform: translateY(-3px); }
.cvt-btn-hero:active { transform: translateY(0); }
.cvt-btn-blue { background: linear-gradient(135deg, #3b82f6, #2563eb); box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3); }
.cvt-btn-blue:hover { box-shadow: 0 12px 25px rgba(37, 99, 235, 0.4); }
.cvt-btn-green { background: linear-gradient(135deg, #10b981, #059669); box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3); }
.cvt-btn-green:hover { box-shadow: 0 12px 25px rgba(16, 185, 129, 0.4); }

.cvt-status-box { padding: 12px 24px; border-radius: 8px; font-size: 0.9rem; font-weight: bold; text-align: center; line-height: 1.4; animation: cvtFadeIn 0.3s ease; }
.cvt-status-box.success { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
.cvt-status-box.error { background: #fef2f2; color: #ef4444; border: 1px solid #fecaca; }
@keyframes cvtFadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

/* 按钮组 */
.cvt-btn-group-sm { display: flex; gap: 8px; align-items: center; }
.cvt-btn-sm { background: var(--bg-body); color: var(--text-main); border: 1px solid var(--border-color); padding: 8px 16px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: 0.2s; }
.cvt-btn-sm:hover { background: #e2e8f0; border-color: #cbd5e1; }
.cvt-btn-sm-primary { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }
.cvt-btn-sm-primary:hover { background: #2563eb; }
.cvt-btn-sm-danger { background: #fee2e2; color: #ef4444; border-color: #fca5a5; }
.cvt-btn-sm-danger:hover { background: #fecaca; color: #b91c1c; border-color: #f87171; }

/* SEO Blocks */
.cvt-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 1000px; margin: 0 auto; }
.cvt-info-card { background: var(--bg-surface); padding: 24px; border-radius: 16px; border: 1px solid var(--border-color); }
.cvt-info-card h3 { color: var(--text-main); font-size: 1.15rem; margin-bottom: 16px; }
.cvt-desc-text { font-size: 0.95rem; color: var(--text-muted); margin: 0; }
.cvt-desc-text strong { color: var(--text-main); }

@media (max-width: 768px) {
    .cvt-btn-hero { width: 100%; }
    .cvt-info-grid { grid-template-columns: 1fr; }
}

/* 深色模式适配 */
[data-theme="dark"] .cvt-panel, [data-theme="dark"] .cvt-info-card { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .cvt-textarea { background: #0f172a; border-color: #475569; color: #f8fafc; }
[data-theme="dark"] .cvt-btn-sm { background: #0f172a; border-color: #475569; color: #f8fafc; }
[data-theme="dark"] .cvt-btn-sm:hover { background: #1e293b; }
[data-theme="dark"] .cvt-btn-sm-primary { background: var(--primary-color); border-color: var(--primary-color); }
[data-theme="dark"] .cvt-btn-sm-danger { background: rgba(239,68,68,0.1); color: #f87171; border-color: rgba(239,68,68,0.3); }
[data-theme="dark"] .cvt-btn-sm-danger:hover { background: rgba(239,68,68,0.2); }
[data-theme="dark"] .cvt-output { background: #0f172a; border-color: #334155; color: #c7d2fe; }
[data-theme="dark"] .cvt-status-box.success { background: rgba(22, 163, 74, 0.1); color: #4ade80; border-color: rgba(22, 163, 74, 0.3); }
[data-theme="dark"] .cvt-status-box.error { background: rgba(239, 68, 68, 0.1); color: #f87171; border-color: rgba(239, 68, 68, 0.3); }