/* ════════════════════════════════════════════════════
   StavFlow — Kompletný CSS v2
   Dark / Light theme + Mobile-first
   ════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

/* ── DARK THEME (default) ── */
:root, [data-theme="dark"] {
    --bg-primary: #0F1117;
    --bg-secondary: #161822;
    --bg-card: #1C1F2E;
    --bg-hover: #252840;
    --accent: #F59E0B;
    --accent-light: #FBBF24;
    --accent-dim: rgba(245, 158, 11, 0.15);
    --text-primary: #E8E9ED;
    --text-secondary: #8B8FA3;
    --text-muted: #565B73;
    --border: #2A2D3E;
    --success: #34D399;
    --danger: #F87171;
    --warning: #FBBF24;
    --info: #60A5FA;
    --pdf-color: #EF4444;
    --word-color: #3B82F6;
    --excel-color: #22C55E;
    --img-color: #A855F7;
    --sidebar-w: 260px;
    --header-h: 60px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --input-bg: var(--bg-primary);
    --sidebar-bg: #161822;
    --sidebar-active: rgba(245,158,11,0.12);
    --sidebar-text: #8B8FA3;
    --sidebar-text-active: #F59E0B;
}

/* ── LIGHT THEME ── */
[data-theme="light"] {
    --bg-primary: #F5F6F8;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-hover: #F0F1F4;
    --accent: #D97706;
    --accent-light: #F59E0B;
    --accent-dim: rgba(217, 119, 6, 0.08);
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-muted: #9CA3AF;
    --border: #E2E5EB;
    --success: #059669;
    --danger: #DC2626;
    --warning: #D97706;
    --info: #2563EB;
    --pdf-color: #DC2626;
    --word-color: #2563EB;
    --excel-color: #059669;
    --img-color: #7C3AED;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --input-bg: #FFFFFF;
    --sidebar-bg: #1E293B;
    --sidebar-active: rgba(245,158,11,0.15);
    --sidebar-text: #94A3B8;
    --sidebar-text-active: #FBBF24;
}

/* ── LIGHT THEME specific overrides ── */
[data-theme="light"] .header { background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
[data-theme="light"] .stat-card, [data-theme="light"] .content-card, [data-theme="light"] .stavba-card { box-shadow: var(--shadow-sm); border: 1px solid var(--border); }
[data-theme="light"] .file-table tbody tr:hover { background: #F9FAFB; }
[data-theme="light"] .upload-zone { border-color: #D1D5DB; background: #FAFBFC; }
[data-theme="light"] .upload-zone:hover { border-color: var(--accent); background: rgba(217,119,6,0.04); }
[data-theme="light"] .calendar-day.today { background: rgba(217,119,6,0.1); }
[data-theme="light"] .login-page { background: linear-gradient(135deg, #F5F6F8 0%, #E2E5EB 100%); }
[data-theme="light"] .login-card { box-shadow: var(--shadow-md); border: 1px solid var(--border); }
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select,
[data-theme="light"] .form-group textarea { background: var(--input-bg); border-color: #D1D5DB; color: var(--text-primary); }
[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group select:focus,
[data-theme="light"] .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(217,119,6,0.1); }
[data-theme="light"] .header-search input { background: #F3F4F6; border-color: #E5E7EB; color: #1F2937; }
[data-theme="light"] .header-btn { background: #F3F4F6; border-color: #E5E7EB; color: #4B5563; }
[data-theme="light"] .btn-secondary { background: #fff; border-color: #D1D5DB; color: #374151; }
[data-theme="light"] .btn-secondary:hover { border-color: #9CA3AF; background: #F9FAFB; }
[data-theme="light"] .alert-success { background: rgba(5,150,105,0.06); border-color: rgba(5,150,105,0.15); color: #065F46; }
[data-theme="light"] .alert-danger { background: rgba(220,38,38,0.06); border-color: rgba(220,38,38,0.15); color: #991B1B; }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: #D1D5DB; }
/* Light sidebar stays dark for contrast */
[data-theme="light"] .sidebar { background: var(--sidebar-bg); border-right: none; }
[data-theme="light"] .sidebar .nav-item { color: var(--sidebar-text); }
[data-theme="light"] .sidebar .nav-item:hover { background: rgba(255,255,255,0.06); color: #E2E8F0; }
[data-theme="light"] .sidebar .nav-item.active { background: var(--sidebar-active); color: var(--sidebar-text-active); }
[data-theme="light"] .sidebar .nav-section-title { color: #64748B; }
[data-theme="light"] .sidebar-logo { border-bottom-color: rgba(255,255,255,0.08); }
[data-theme="light"] .sidebar-logo h1 { color: #F1F5F9; }
[data-theme="light"] .sidebar-logo span { color: #64748B; }
[data-theme="light"] .sidebar-footer { border-top-color: rgba(255,255,255,0.08); }
[data-theme="light"] .user-name { color: #E2E8F0; }
[data-theme="light"] .user-role { color: #64748B; }
[data-theme="light"] .user-avatar { color: #fff; }

/* Logo dark/light switching */
.logo-dark { display: none; }
.logo-light { display: block; }
[data-theme="dark"] .logo-dark { display: block; }
[data-theme="dark"] .logo-light { display: none; }

/* ── THEME TOGGLE ── */
.theme-toggle {
    width: 36px; height: 36px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text-secondary); display: flex; align-items: center;
    justify-content: center; cursor: pointer; transition: all .2s; position: relative;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { width: 16px; height: 16px; transition: all .3s; position: absolute; }
[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg); }
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.5); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg); }
[data-theme="light"] .theme-toggle { background: #F3F4F6; border-color: #E5E7EB; }

/* ── TRANSITIONS ── */
body, .header, .main, .content-card, .stat-card, .stavba-card,
.form-group input, .form-group select, .form-group textarea,
.btn-secondary, .header-btn, .header-search input, .file-table td,
.upload-zone, .calendar-day, .alert, .tag {
    transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

/* ── RESET ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }

/* ── SIDEBAR ── */
.sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: var(--sidebar-w); background: var(--sidebar-bg); border-right: 1px solid var(--border); display: flex; flex-direction: column; z-index: 100; transition: transform .3s cubic-bezier(.4,0,.2,1); }
.sidebar-logo { padding: 18px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 12px; }
.sidebar-logo .logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--accent), #D97706); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; color: #000; font-family: 'Space Mono', monospace; flex-shrink: 0; }
.sidebar-logo h1 { font-size: 16px; font-weight: 700; letter-spacing: -0.3px; color: var(--text-primary); }
.sidebar-logo span { font-size: 10px; color: var(--text-muted); display: block; margin-top: 1px; }
.sidebar-logo-img { max-width: 130px; max-height: 34px; object-fit: contain; border-radius: 4px; flex-shrink: 0; }
/* Dark logo variant */
.sidebar-logo-img.logo-dark { display: none; }
[data-theme="light"] .sidebar-logo-img.logo-light { display: none; }
[data-theme="light"] .sidebar-logo-img.logo-dark { display: block; }
.logo-placeholder { width: 36px; height: 36px; border: 1.5px dashed rgba(255,255,255,0.15); border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.logo-placeholder svg { opacity: 0.3; }
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section { margin-bottom: 20px; }
.nav-section-title { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-muted); padding: 0 12px; margin-bottom: 6px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: var(--radius-sm); cursor: pointer; transition: all .15s; font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; stroke-width: 1.8; }
.sidebar-footer { padding: 14px 16px; border-top: 1px solid var(--border); }
.user-info { display: flex; align-items: center; gap: 10px; }
.user-avatar { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), #D97706); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #000; flex-shrink: 0; }
.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--text-muted); }
.user-row-avatar { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }

/* ── HEADER ── */
.header { position: fixed; top: 0; left: var(--sidebar-w); right: 0; height: var(--header-h); background: rgba(15,17,23,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; z-index: 90; }
.header-search { display: flex; align-items: center; gap: 8px; }
.header-search svg { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.header-search input { background: var(--bg-card); border: 1px solid var(--border); padding: 7px 14px; border-radius: 20px; color: var(--text-primary); font-family: inherit; font-size: 13px; width: 240px; }
.header-search input:focus { outline: none; border-color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.header-btn { width: 36px; height: 36px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-card); color: var(--text-secondary); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .15s; }
.header-btn:hover { border-color: var(--accent); color: var(--accent); }
.mobile-toggle { display: none; width: 40px; height: 40px; border-radius: var(--radius-sm); border: none; background: transparent; color: var(--text-primary); cursor: pointer; align-items: center; justify-content: center; flex-shrink: 0; -webkit-tap-highlight-color: transparent; }
#sidebarClose { display: none !important; }

/* ── MOBILE SIDEBAR OVERLAY ── */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99; }
.sidebar-overlay.active { display: block; }

/* ── MAIN CONTENT ── */
.main { margin-left: var(--sidebar-w); padding: 24px; padding-top: calc(var(--header-h) + 20px); min-height: 100vh; }

/* ── IMPERSONATION BAR ── */
.impersonation-bar { position: fixed; top: 0; left: 0; right: 0; z-index: 200; background: linear-gradient(90deg, #EF4444, #DC2626); color: #fff; padding: 6px 16px; font-size: 12px; font-weight: 600; text-align: center; display: flex; justify-content: center; align-items: center; gap: 12px; }
.impersonation-bar a { background: rgba(255,255,255,0.2); padding: 2px 10px; border-radius: 4px; }
.impersonation-bar ~ .sidebar { top: 32px; }
.impersonation-bar ~ .header { top: 32px; }
.impersonation-bar ~ .main { padding-top: calc(var(--header-h) + 52px); }

/* ── PAGE HEADER ── */
.page-header { margin-bottom: 20px; }
.page-header h2 { font-size: 22px; font-weight: 700; margin-bottom: 2px; }
.page-header p { color: var(--text-secondary); font-size: 13px; }
.breadcrumb { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent); }

/* ── BUTTONS ── */
.btn-primary { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; background: var(--accent); color: #000; border-radius: var(--radius-sm); font-weight: 600; font-size: 13px; cursor: pointer; border: none; font-family: inherit; transition: all .15s; }
.btn-primary:hover { background: var(--accent-light); }
.btn-secondary { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary); border-radius: var(--radius-sm); font-weight: 500; font-size: 13px; cursor: pointer; font-family: inherit; transition: all .15s; }
.btn-secondary:hover { border-color: var(--text-muted); color: var(--text-primary); }
.btn-block { width: 100%; justify-content: center; }

/* ── CARDS ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.stat-value { font-size: 26px; font-weight: 700; font-family: 'Space Mono', monospace; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.content-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; }
.content-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--border); }
.content-header h3 { font-size: 15px; font-weight: 600; }

/* ── TWO COLUMN LAYOUT ── */
.two-col { display: grid; grid-template-columns: 1fr 320px; gap: 20px; }

/* ── STAVBY GRID ── */
.stavby-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.stavba-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .2s; display: block; }
.stavba-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stavba-thumb { height: 120px; background: linear-gradient(135deg, var(--bg-hover), var(--bg-primary)); display: flex; align-items: center; justify-content: center; }
.stavba-info { padding: 16px; }
.stavba-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.stavba-meta { font-size: 12px; color: var(--text-muted); }
.stavba-progress { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 8px; }
.stavba-progress-bar { height: 100%; background: var(--accent); border-radius: 2px; transition: width .3s; }

/* ── TAGS ── */
.tag { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.tag-active { background: rgba(52,211,153,0.15); color: var(--success); }
.tag-pending { background: rgba(251,191,36,0.15); color: var(--warning); }
.tag-archived { background: rgba(139,143,163,0.15); color: var(--text-muted); }

/* ── ROLE BADGES ── */
.role-badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.role-admin { background: rgba(239,68,68,0.12); color: #EF4444; }
.role-manager { background: rgba(59,130,246,0.12); color: #3B82F6; }
.role-stavbyveduci { background: rgba(245,158,11,0.12); color: #F59E0B; }
.role-user { background: rgba(139,143,163,0.12); color: var(--text-secondary); }

/* ── TABLES ── */
.file-table { width: 100%; border-collapse: collapse; }
.file-table thead th { text-align: left; padding: 10px 16px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); border-bottom: 1px solid var(--border); background: var(--bg-primary); }
.file-table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 13px; }
.file-table tbody tr:hover { background: var(--bg-hover); }
.file-name-cell { display: flex; align-items: center; gap: 10px; }
.file-icon { width: 34px; height: 34px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 700; flex-shrink: 0; }
.file-icon.pdf { background: rgba(239,68,68,0.12); color: var(--pdf-color); }
.file-icon.docx { background: rgba(59,130,246,0.12); color: var(--word-color); }
.file-icon.xlsx { background: rgba(34,197,94,0.12); color: var(--excel-color); }
.file-icon.img { background: rgba(168,85,247,0.12); color: var(--img-color); }
.file-icon.other { background: rgba(100,116,139,0.12); color: #64748B; }
.file-title { font-weight: 500; font-size: 13px; }
.file-meta { font-size: 11px; color: var(--text-muted); margin-top: 1px; }

/* ── FORMS ── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 9px 12px; background: var(--input-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-primary); font-family: inherit; font-size: 14px; transition: all .15s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }

/* ── UPLOAD ZONE ── */
.upload-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 32px; text-align: center; cursor: pointer; transition: all .2s; margin-bottom: 16px; }
.upload-zone:hover { border-color: var(--accent); }
.upload-zone h4 { font-size: 15px; margin: 8px 0 4px; }
.upload-zone p { font-size: 12px; color: var(--text-muted); }

/* ── ALERTS ── */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 13px; border: 1px solid; }
.alert-success { background: rgba(52,211,153,0.08); border-color: rgba(52,211,153,0.2); color: var(--success); }
.alert-danger { background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.2); color: var(--danger); }

/* ── CALENDAR ── */
.calendar-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.calendar-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.calendar-header h3 { font-size: 16px; font-weight: 600; }
.calendar-nav { display: flex; gap: 4px; }
.calendar-nav button { padding: 5px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-card); color: var(--text-primary); cursor: pointer; font-family: inherit; font-size: 13px; }
.calendar-nav button:hover { border-color: var(--accent); color: var(--accent); }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); }
.calendar-day-name { padding: 8px; text-align: center; font-size: 11px; font-weight: 600; color: var(--text-muted); }
.calendar-day { padding: 8px 4px; text-align: center; font-size: 13px; min-height: 44px; border-top: 1px solid var(--border); cursor: default; }
.calendar-day.today { background: var(--accent-dim); font-weight: 700; color: var(--accent); }
.calendar-day.other-month { color: var(--text-muted); opacity: 0.4; }
.event-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); margin: 2px auto 0; }

/* ── ACTIVITY ── */
.activity-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); align-items: start; }
.activity-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.activity-text { font-size: 13px; }
.activity-time { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ── NOTIFICATIONS ── */
.notif-trigger { position: relative; }
.notif-badge { position: absolute; top: 0; right: 0; width: 16px; height: 16px; background: var(--danger); border-radius: 50%; font-size: 9px; font-weight: 700; display: flex; align-items: center; justify-content: center; color: #fff; }
.notif-panel { position: absolute; top: 100%; right: 0; width: 340px; max-height: 400px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-md); overflow-y: auto; z-index: 200; }

/* ── LOGIN ── */
.login-page { background: var(--bg-primary); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-container { width: 100%; max-width: 420px; }
.login-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; }
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-icon { width: 52px; height: 52px; background: linear-gradient(135deg, var(--accent), #D97706); border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; color: #000; font-family: 'Space Mono', monospace; margin-bottom: 14px; }
.login-logo h1 { font-size: 22px; font-weight: 700; }
.login-logo p { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.login-hint { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); text-align: center; font-size: 12px; color: var(--text-muted); }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── COMMENTS ── */
.comments-section .mention { color: var(--accent); font-weight: 600; background: var(--accent-dim); padding: 1px 4px; border-radius: 3px; }

/* ═══════════════════════════════════════════
   RESPONSIVE — Mobile First
   ═══════════════════════════════════════════ */
@media (max-width: 1100px) { .two-col { grid-template-columns: 1fr; } }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); width: 280px; box-shadow: none; }
    .sidebar.open { transform: translateX(0); box-shadow: 8px 0 30px rgba(0,0,0,0.5); }
    .header { left: 0; padding: 0 12px; height: 56px; }
    .main { margin-left: 0; padding: 14px 12px; padding-top: calc(56px + 12px); }
    .mobile-toggle { display: flex !important; }
    #sidebarClose { display: flex !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .stat-card { padding: 14px; }
    .stat-value { font-size: 20px; }
    .stavby-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .notif-panel { width: calc(100vw - 24px); right: -50px; }
    .page-header h2 { font-size: 18px; }
    .page-header p { font-size: 12px; }
    
    /* Tabuľky horizontálne scrollovateľné */
    .content-card { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .file-table { min-width: 400px; }
    .file-table th, .file-table td { padding: 8px 10px; font-size: 12px; }
    .file-table td:first-child { white-space: normal; min-width: 120px; }
    
    /* Skryť menej dôležité stĺpce na mobile */
    .hide-mobile { display: none !important; }
    
    /* Menšie akčné tlačidlá v tabuľke */
    .file-table .btn-secondary { padding: 4px 8px !important; font-size: 10px !important; min-height: 28px !important; }
    
    /* Touch-friendly veľkosti */
    .btn-primary, .btn-secondary { min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .form-group input, .form-group select, .form-group textarea { font-size: 16px !important; padding: 10px 12px; min-height: 44px; }
    
    /* Filtre na mobile — scrollovateľný riadok */
    .filters-row { overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap !important; padding-bottom: 4px; }
    .filters-row select, .filters-row .filter-pill { font-size: 12px !important; min-height: 34px !important; padding: 6px 10px !important; white-space: nowrap; flex-shrink: 0; }
    
    /* Priečinky grid menší */
    .folders-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)) !important; gap: 8px !important; }
    
    /* Tlačidlá wrap */
    .page-header { flex-direction: column; gap: 10px; }
    
    /* Header search menší */
    .header-search { flex: 1; max-width: 200px; }
    .header-search input { width: 100%; font-size: 13px; padding: 6px 12px; }
    
    /* Breadcrumb */
    .breadcrumb { font-size: 11px; }
    
    /* Calendar */
    .calendar-day { min-height: 36px; font-size: 12px; padding: 6px 2px; }
    .calendar-day-name { font-size: 10px; padding: 6px; }
    
    /* Upload button v headeri skryť na mobile */
    .header-actions .btn-primary { display: none; }
    
    /* Bottom nav visible on mobile */
    .bottom-nav { display: flex !important; }
    .hide-on-mobile { display: none !important; }
    
    /* Padding bottom pre main content kvôli bottom nav */
    .main { padding-bottom: 70px !important; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
    .header-search { display: none; }
    .header-actions { gap: 6px; }
    .theme-toggle { width: 34px; height: 34px; }
    .stavby-grid { grid-template-columns: 1fr; }
    .stavba-thumb { height: 100px; }
}

/* ═══════════════════════════════════════ */
/* MOBILE BOTTOM NAVIGATION BAR          */
/* ═══════════════════════════════════════ */

.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    z-index: 160;
    justify-content: space-around;
    align-items: center;
    padding: 4px 0;
    padding-bottom: env(safe-area-inset-bottom, 4px);
    box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 10px;
    padding: 6px 12px;
    transition: color .15s;
    min-width: 50px;
}

.bottom-nav-item.active { color: var(--accent); }
.bottom-nav-item.active svg { stroke: var(--accent); }
.bottom-nav-item:hover { color: var(--text-primary); }
.bottom-nav-center { padding-top: 0; }

/* ═══════════════════════════════════════ */
/* DARK MODE — VYLEPŠENÉ KONTRASTY       */
/* ═══════════════════════════════════════ */

[data-theme="dark"] {
    --bg-primary: #0F1117;
    --bg-card: #181B25;
    --bg-hover: #1E2130;
    --border: #2A2D3E;
    --text-primary: #F0F1F5;
    --text-secondary: #B8BCC8;
    --text-muted: #6B7089;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
}

/* Lepší kontrast pre tabuľky v dark mode */
[data-theme="dark"] .file-table th { background: #1E2130; color: var(--text-secondary); }
[data-theme="dark"] .file-table td { border-color: #2A2D3E; }
[data-theme="dark"] .file-table tr:hover { background: #1E2130; }

/* Lepší kontrast pre buttony */
[data-theme="dark"] .btn-secondary { border-color: #3A3D4E; color: var(--text-secondary); }
[data-theme="dark"] .btn-secondary:hover { border-color: #4A4D5E; background: #1E2130; }

/* Input/select kontrast */
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea { background: #12141C; border-color: #2A2D3E; color: var(--text-primary); }
[data-theme="dark"] input:focus, [data-theme="dark"] select:focus, [data-theme="dark"] textarea:focus { border-color: var(--accent); }

/* Stat cards */
[data-theme="dark"] .stat-card { background: #181B25; border: 1px solid #2A2D3E; }

/* Content card */
[data-theme="dark"] .content-card { background: #181B25; border-color: #2A2D3E; }
[data-theme="dark"] .content-header { border-bottom-color: #2A2D3E; }

/* ═══════════════════════════════════════ */
/* LAZY LOAD OBRÁZKY                     */
/* ═══════════════════════════════════════ */

img[loading="lazy"] { opacity: 0; transition: opacity .3s; }
img[loading="lazy"].loaded, img[loading="lazy"][complete] { opacity: 1; }
.lazy-placeholder { background: var(--bg-primary); animation: shimmer 1.5s infinite; }

/* ═══════════════════════════════════════ */
/* PRINT CSS                             */
/* ═══════════════════════════════════════ */

@media print {
    .sidebar, .header, .bottom-nav, #fab, .mobile-toggle, .sidebar-overlay,
    .notif-bell, .theme-toggle, .btn-primary, .btn-secondary, form { display: none !important; }
    .main { margin: 0 !important; padding: 10mm !important; }
    .content-card { box-shadow: none !important; border: 1px solid #ddd !important; break-inside: avoid; }
    .stat-card { box-shadow: none !important; border: 1px solid #ddd !important; }
    body { background: #fff !important; color: #333 !important; font-size: 12px !important; }
    a { color: #333 !important; text-decoration: none !important; }
    .page-header h2 { font-size: 18px !important; }
    @page { size: A4; margin: 10mm; }
}

/* ═══════════════════════════════════════ */
/* ACCESSIBILITY                         */
/* ═══════════════════════════════════════ */

/* Focus visible pre klávesnicu */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
*:focus:not(:focus-visible) { outline: none; }

/* Skip to content link (skrytý, viditeľný pri Tab) */
.skip-link { position: absolute; top: -100px; left: 16px; padding: 8px 16px; background: var(--accent); color: #000; border-radius: 0 0 8px 8px; z-index: 9999; font-weight: 600; font-size: 14px; transition: top .2s; }
.skip-link:focus { top: 0; }

/* Minimálny kontrast pre text */
.text-low-contrast { color: var(--text-secondary) !important; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ═══════════════════════════════════════ */
/* LEPŠIE MOBILE RESPONSIVE              */
/* ═══════════════════════════════════════ */

@media (max-width: 768px) {
    /* Modal fullscreen na mobile */
    [id$="Modal"] > div:first-child, [id$="modal"] > div:first-child {
        width: 100% !important; max-width: 100% !important;
        border-radius: 0 !important; max-height: 100vh !important;
        margin: 0 !important;
    }
    
    /* Two column layout stack */
    .two-col { grid-template-columns: 1fr !important; }
    
    /* Form row stack */
    .form-row { grid-template-columns: 1fr !important; }
    
    /* Stats grid compact */
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 360px) {
    .stats-grid { grid-template-columns: 1fr !important; }
    .bottom-nav-item span { display: none; }
    .bottom-nav-item { padding: 8px; }
}

/* ═══════════════════════════════════════ */
/* LOADING SPINNER                       */
/* ═══════════════════════════════════════ */

#globalLoader {
    display: none;
    position: fixed; top: 0; left: 0; right: 0;
    height: 3px; z-index: 9999;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: loaderSlide 1.2s infinite ease-in-out;
}
@keyframes loaderSlide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}
body.loading #globalLoader { display: block; }

/* Alert auto-dismiss animation */
.alert { animation: alertIn .3s ease; position: relative; }
.alert-dismiss { animation: alertOut .3s ease forwards; }
@keyframes alertIn { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:translateY(0); } }
@keyframes alertOut { from { opacity:1; } to { opacity:0; transform:translateY(-8px); height:0; padding:0; margin:0; overflow:hidden; } }

/* ═══════════════════════════════════════ */
/* FOLDER CARD HOVER (bez inline JS)     */
/* ═══════════════════════════════════════ */

.folder-card-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}