:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #2563eb;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    
    --success-bg: #dcfce7;
    --success-text: #166534;
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    
    --border: #e2e8f0;
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    margin: 0;
    color: var(--text-main);
    padding-bottom: 60px;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* --- Hlavička --- */
.top-bar {
    background-color: var(--primary);
    color: white;
    padding: 16px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrapper { display: flex; align-items: center; gap: 8px; }
.logo-icon { width: 24px; height: 24px; color: #60a5fa; }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }

.header-actions {
    display: flex; 
    align-items: center; 
    gap: 16px;
}

.theme-btn svg {
    width: 25px;
    height: 25px;
    display: block;
}

.theme-btn {
    background: transparent;
    border: 0;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* --- Modal a Layout --- */
.container { max-width: 1000px; margin: 24px auto; padding: 0 16px; }

.search-wrapper {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.search-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    flex: 1;
}

.search-input:focus { border-color: var(--accent); }

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.search-tag {
    background-color: var(--primary-light);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.remove-tag {
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
    font-size: 0.9rem;
    line-height: 1;
}

.remove-tag:hover { opacity: 1; }

.highlight-row td {
    background-color: rgba(234, 179, 8, 0.15);
    transition: background-color 0.3s ease;
}

body.dark-mode .search-input { background: rgba(0, 0, 0, 0.2); }
body.dark-mode .search-tag { background-color: var(--accent); }
body.dark-mode .highlight-row td { background-color: rgba(234, 179, 8, 0.2); }

.status-indicator {
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
}

.pulsing-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    margin-right: 8px;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}

/* --- Záložky Půldnů --- */
.sessions-wrapper {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    margin-bottom: 24px;
    justify-content: center; 
    flex-wrap: wrap; 
}

.session-tab {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 8px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.session-tab:hover { border-color: var(--accent); color: var(--text-main); }
.session-tab.active { background: var(--primary); color: white; border-color: var(--primary); }
body.dark-mode .session-tab.active { background: var(--accent); border-color: var(--accent); }

/* --- Disciplíny --- */
.disciplina {
    background: var(--card-bg);
    border-radius: var(--radius);
    margin-bottom: 16px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: box-shadow 0.2s ease, background-color 0.4s ease, border-color 0.4s ease;
}

.disciplina:hover { box-shadow: 0 6px 12px rgba(0,0,0,0.06); }

.disciplina-header {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg);
    user-select: none;
    transition: background-color 0.4s ease, border-bottom 0.4s ease;
    gap: 12px;
}

.disc-title-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.disciplina-title { 
    margin: 0; 
    font-size: 1.1rem; 
    font-weight: 600;
}

.disc-number {
    background: var(--bg-color);
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1px solid var(--border);
}

.disc-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
    margin-right: 8px;
}

.disc-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.toggle-icon { 
    color: var(--text-muted); 
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
}

.disciplina-body-wrapper { display: none; }
.disciplina.open .disciplina-body-wrapper { display: block; }
.disciplina.open .toggle-icon { transform: rotate(180deg); color: var(--accent); }
.disciplina.open .disciplina-header { border-bottom: 1px solid var(--border); background-color: #f8fafc; }

.disciplina-body { overflow: hidden; }
.rozplavba { padding: 0 20px 24px 20px; }
.rozplavba:first-child { padding-top: 24px; }

.heat-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.heat-header h3 { margin: 0; font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }

/* --- Tabulky --- */
.table-responsive { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 650px; }
th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); transition: border-color 0.4s ease; }
th { color: var(--text-muted); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
tr:last-child td { border-bottom: none; }
tr:hover td { background-color: #f1f5f9; }

.draha { font-weight: 700; color: var(--text-muted); width: 60px; }
.jmeno { font-weight: 700; color: var(--text-main); }
.klub { color: var(--text-muted); font-size: 0.875rem; }
.cas-entry { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.cas-result { font-weight: 700; font-size: 1rem; font-variant-numeric: tabular-nums; color: var(--text-main); }

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

.badge-pb { background-color: var(--success-bg); color: var(--success-text); }
.badge-dsq { background-color: var(--danger-bg); color: var(--danger-text); }
.badge-wait { background-color: #f1f5f9; color: #94a3b8; }
.badge-done { background-color: var(--success-bg); color: var(--success-text); padding: 4px 8px; border-radius: 6px; font-size: 0.7rem; font-weight: 700; display: inline-flex; align-items: center; }

.badge-active-heat {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fca5a5;
    animation: pulse-red 2.5s infinite;
}

@keyframes pulse-red {
    0% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.3); }
    70% { box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}

.pulsing-badge-green { animation: pulse-shadow-green 2s infinite; }
.pulsing-badge-red { animation: pulse-shadow-red 2s infinite; }

@keyframes pulse-shadow-green {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-shadow-red {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* --- Ostatní komponenty --- */
.skeleton-card { background: var(--card-bg); height: 72px; border-radius: var(--radius); margin-bottom: 16px; border: 1px solid var(--border); position: relative; overflow: hidden; }
.skeleton-card::after { content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent); transform: translateX(-100%); animation: shimmer 1.5s infinite; }
.skeleton-header { width: 30%; height: 24px; background-color: #e2e8f0; border-radius: 6px; margin: 24px 20px; }
@keyframes shimmer { 100% { transform: translateX(100%); } }

.fade-in { animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Modal Overlay */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(15, 23, 42, 0.95); z-index: 9999; display: flex; justify-content: center; align-items: center; opacity: 1; transition: opacity 0.3s ease; }
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-content { background: var(--card-bg); padding: 32px; border-radius: var(--radius); max-width: 480px; text-align: center; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); border: 1px solid var(--border); margin: 20px; }
.modal-content h2 { color: var(--danger-text); margin-top: 0; font-size: 1.5rem; }
.modal-content p { color: var(--text-muted); line-height: 1.6; margin-bottom: 24px; font-size: 0.95rem; }
.modal-footer { margin-top: 24px; font-size: 0.8rem; color: var(--text-muted); padding-top: 16px; border-top: 1px solid var(--border); }
.modal-footer a { color: var(--accent); text-decoration: none; font-weight: 600; }

#accept-disclaimer { background-color: var(--primary); color: white; border: none; padding: 14px 24px; font-size: 1rem; font-weight: 600; border-radius: 8px; cursor: pointer; width: 100%; transition: background-color 0.2s, opacity 0.2s; }
#accept-disclaimer:disabled { background-color: var(--text-muted); cursor: not-allowed; opacity: 0.7; }
#accept-disclaimer:not(:disabled):hover { background-color: var(--accent); }

.site-footer { text-align: center; padding: 32px 24px; color: var(--text-muted); font-size: 0.875rem; border-top: 1px solid var(--border); }
.site-footer a { color: var(--accent); text-decoration: none; font-weight: 600; }

.settings-box { max-width: 400px; padding: 24px; text-align: left; }
.settings-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 16px; }
.setting-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.setting-label { font-weight: 600; font-size: 0.95rem; color: var(--text-main); }
.setting-info { font-size: 0.8rem; color: var(--text-muted); padding-top: 16px; border-top: 1px solid var(--border); line-height: 1.5; }

.icon-btn { background: none; border: none; color: inherit; cursor: pointer; padding: 8px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: background-color 0.2s; }
.icon-btn:hover { background-color: rgba(255,255,255,0.1); }
#close-settings { width: 32px; height: 32px; padding: 0; font-size: 1.5rem; line-height: 1; color: var(--text-muted); border-radius: 50%; }
#close-settings:hover { background-color: var(--border); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-main); padding: 8px 16px; border-radius: 8px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.btn-outline:hover { background: var(--bg-color); }
.btn-primary { background: var(--accent); color: white; border: none; padding: 8px 16px; border-radius: 8px; font-weight: 600; cursor: pointer; text-decoration: none; font-size: 0.9rem; }

.fab-live { position: fixed; bottom: 24px; right: 24px; background-color: #ef4444; color: white; border: none; border-radius: 50px; padding: 12px 20px; font-size: 0.9rem; font-weight: 700; box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4); cursor: pointer; display: flex; align-items: center; gap: 8px; z-index: 1000; transition: transform 0.2s ease, background-color 0.2s ease; }
.fab-live:hover { transform: translateY(-3px) scale(1.02); background-color: #dc2626; }
.fab-live.hidden { display: none; }

/* Tutorial Modal */
/* --- Tutorial Modal --- */
.tutorial-box {
    padding: 40px 32px;
}

.tutorial-slides {
    position: relative;
    min-height: 220px;
}

.tutorial-slide {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.tutorial-slide.active {
    display: block;
}

.tutorial-icon {
    background: var(--bg-color);
    width: 80px;
    height: 80px;
    margin: 0 auto 24px auto;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
}

.tutorial-slide h2 {
    margin-bottom: 12px;
    font-size: 1.4rem;
}

.tutorial-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}

.tutorial-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--border);
    transition: background-color 0.3s, transform 0.3s;
}

.tutorial-dots .dot.active {
    background-color: var(--accent);
    transform: scale(1.3);
}

body.dark-mode .tutorial-icon {
    background: rgba(0,0,0,0.2);
}

/* --- DARK MODE --- */
body.dark-mode {
    --bg-color: #0f172a;        
    --card-bg: #1e293b;         
    --text-main: #f8fafc;       
    --text-muted: #94a3b8;      
    --border: #334155;          
    --primary: #020617;         
    
    --success-bg: rgba(22, 101, 52, 0.3);      
    --success-text: #4ade80;
    --danger-bg: rgba(153, 27, 27, 0.3);       
    --danger-text: #f87171;
}

body.dark-mode .disciplina-header { background-color: var(--card-bg); }
body.dark-mode .disciplina.open .disciplina-header { background-color: #0f172a; border-bottom-color: var(--border); }
body.dark-mode th { background-color: #0f172a; }
body.dark-mode tr:hover td { background-color: #0f172a; }
body.dark-mode .badge-wait { background-color: #334155; color: #cbd5e1; }
body.dark-mode .skeleton-card::after { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent); }
body.dark-mode .skeleton-header { background-color: #334155; }
body.dark-mode .badge-active-heat { background-color: rgba(220, 38, 38, 0.15); color: #fca5a5; border: 1px solid #991b1b; animation: pulse-red-dark 2.5s infinite; }
@keyframes pulse-red-dark { 0% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); } 70% { box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); } 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); } }

.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(136, 136, 136, 0.1);
    border: none;
    color: var(--text-muted, #888);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 20px;
    transition: all 0.2s ease;
}

.btn-share:hover {
    background: var(--bg-color);
    color: var(--primary);
}

.btn-share.copied {
    background: var(--success-bg); 
    color: var(--success-text);
}