/* ===== Timestamp Converter - Modern Styles ===== */
.ts-layout { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }
.ts-main { min-width: 0; }
.ts-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 18px; padding: 32px; box-shadow: 0 4px 16px rgba(0,0,0,0.04); }
.ts-sidebar { display: flex; flex-direction: column; gap: 20px; }

/* Tabs */
.ts-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 24px; }
.ts-tab {
  padding: 12px; background: var(--bg-soft); border: 2px solid var(--border-light); border-radius: 12px;
  cursor: pointer; font-family: inherit; font-size: 14px; font-weight: 600; color: var(--text-secondary);
  transition: all 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px;
}
.ts-tab:hover { border-color: var(--primary-100); background: var(--primary-50); color: var(--primary); }
.ts-tab.active { border-color: var(--primary); background: var(--primary-50); color: var(--primary); box-shadow: 0 0 0 4px rgba(79,70,229,0.08); }
body[data-theme="dark"] .ts-tab { background: var(--bg-muted); border-color: var(--border); }
body[data-theme="dark"] .ts-tab.active { background: rgba(99,102,241,0.15); }

/* Panel */
.ts-panel { margin-bottom: 16px; }
.ts-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.ts-input-row { display: flex; gap: 10px; }
.ts-input {
  flex: 1; padding: 14px 16px; border: 2px solid var(--border-light); border-radius: 12px;
  font-size: 16px; font-weight: 500; background: var(--bg); color: var(--text);
  outline: none; transition: all 0.2s; font-family: inherit;
}
.ts-input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(79,70,229,0.12); }
body[data-theme="dark"] .ts-input { background: var(--bg-muted); border-color: var(--border); }
body[data-theme="dark"] .ts-input:focus { background: var(--bg-card); }
.ts-hint { font-size: 12px; color: var(--text-muted); margin-top: 8px; }

/* Buttons */
.ts-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 20px; border: none; border-radius: 12px;
  font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; font-family: inherit;
}
.ts-btn-primary { background: linear-gradient(135deg, var(--primary), #8b5cf6); color: #fff; box-shadow: 0 4px 14px rgba(79,70,229,0.3); white-space: nowrap; }
.ts-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,70,229,0.4); }
.ts-btn-secondary { background: var(--bg-soft); color: var(--text-secondary); border: 1px solid var(--border-light); }
.ts-btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.ts-btn-copy { background: var(--primary-50); color: var(--primary); width: 100%; justify-content: center; margin-top: 16px; }
.ts-btn-copy:hover { background: var(--primary); color: #fff; }

/* Quick actions */
.ts-actions { display: flex; gap: 10px; margin-top: 8px; }
.ts-actions .ts-btn { flex: 1; justify-content: center; }

/* Result */
#ts-result { margin-top: 20px; }
.ts-result-main {
  text-align: center; padding: 28px; background: linear-gradient(135deg, var(--primary-50), var(--bg-soft));
  border-radius: 16px; border: 1px solid var(--border-light); margin-bottom: 16px;
}
.ts-result-value { font-size: 28px; font-weight: 800; color: var(--primary); letter-spacing: -1px; }
.ts-result-date { color: var(--text); margin-top: 12px; }
.ts-result-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.ts-result-divider { width: 40px; height: 2px; background: var(--primary); margin: 12px auto; border-radius: 2px; opacity: 0.3; }
body[data-theme="dark"] .ts-result-main { background: linear-gradient(135deg, rgba(99,102,241,0.12), var(--bg-muted)); }

/* Detail table */
.ts-result-details { margin-top: 16px; }
.ts-detail-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.ts-detail-title::before { content: ''; width: 4px; height: 16px; background: linear-gradient(180deg,var(--primary),#8b5cf6); border-radius: 4px; display: inline-block; }
.ts-detail-grid { display: grid; gap: 6px; }
.ts-detail-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--bg-soft); border-radius: 10px; font-size: 13px; }
.ts-detail-label { font-weight: 600; color: var(--text-secondary); flex-shrink: 0; margin-right: 16px; }
.ts-detail-val { font-weight: 500; color: var(--text); text-align: right; word-break: break-all; }
body[data-theme="dark"] .ts-detail-item { background: var(--bg-muted); }

/* Error */
.ts-error { padding: 14px 18px; background: #fef2f2; border: 1px solid #fecaca; border-radius: 12px; color: #dc2626; font-size: 14px; font-weight: 500; margin-top: 16px; }
body[data-theme="dark"] .ts-error { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: #fca5a5; }

/* About section */
.ts-about { margin-top: 24px; padding: 20px; background: var(--bg-soft); border-radius: 14px; border: 1px solid var(--border-light); }
.ts-about-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.ts-about-title i { color: var(--primary); }
.ts-about p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; margin: 0; }
body[data-theme="dark"] .ts-about { background: var(--bg-muted); border-color: var(--border); }

/* SEO */
.ts-seo { margin-top: 24px; padding: 20px 24px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.ts-seo p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin: 0; }

/* Sidebar (shared) */
.sidebar-section { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 16px; padding: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.sidebar-header { text-align: center; padding: 28px 20px !important; background: linear-gradient(135deg,#667eea 0%,#764ba2 100%) !important; border-color: transparent !important; }
.sidebar-header h1 { font-size: 1.35rem; font-weight: 800; color: #fff; margin-bottom: 6px; text-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.sidebar-header p { font-size: 0.82rem; color: rgba(255,255,255,0.85); }
body[data-theme="dark"] .sidebar-header { background: linear-gradient(135deg,#667eea 0%,#764ba2 100%) !important; }
.sidebar-title { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.sidebar-title i { color: var(--primary); font-size: 0.9rem; }
.sidebar-tools { display: flex; flex-direction: column; gap: 8px; }
.sidebar-tool { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; transition: all 0.2s; text-decoration: none; background: var(--bg-soft); }
.sidebar-tool:hover { background: var(--primary-50); transform: translateX(3px); }
.sidebar-tool-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 10px; font-size: 16px; flex-shrink: 0; background: linear-gradient(135deg,#6366f1,#8b5cf6); color: #fff; }
.sidebar-tool-info { flex: 1; min-width: 0; }
.sidebar-tool-name { font-size: 0.9rem; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.sidebar-tool-desc { font-size: 0.78rem; color: var(--text-muted); }
.ad-placeholder { width: 300px; height: 250px; flex-shrink: 0; margin: 0 auto; background: var(--bg-card); border: 2px dashed var(--border); border-radius: 16px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 20px; color: var(--text-muted); font-size: 0.82rem; line-height: 1.5; }
.ad-placeholder .ad-icon { font-size: 1.8rem; color: var(--text-muted); margin-bottom: 10px; opacity: 0.4; }
.ad-placeholder .ad-label { font-weight: 600; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 4px; }
.ad-placeholder .ad-size { font-size: 0.75rem; color: var(--text-muted); opacity: 0.6; }

/* Dark mode */
body[data-theme="dark"] .sidebar-section { background: var(--bg-card); border-color: var(--border); }
body[data-theme="dark"] .sidebar-tool { background: var(--bg-muted); }
body[data-theme="dark"] .sidebar-tool:hover { background: var(--primary-50); }
body[data-theme="dark"] .ad-placeholder { background: var(--bg-card); border-color: var(--border); }
body[data-theme="dark"] .ts-seo { background: var(--bg-card); border-color: var(--border); }
body[data-theme="dark"] .ts-card { background: var(--bg-card); border-color: var(--border); }

/* Responsive */
@media (max-width: 1024px) { .ts-layout { grid-template-columns: 1fr 280px; gap: 20px; } }
@media (max-width: 860px) { .ts-layout { grid-template-columns: 1fr; } .ts-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; } }
@media (max-width: 768px) {
  .ts-input-row { flex-direction: column; }
  .ts-actions { flex-direction: column; }
  .ts-card { padding: 20px; }
  .ts-result-value { font-size: 22px; }
}
@media (max-width: 640px) { .ts-sidebar { grid-template-columns: 1fr; } }