*, *::before, *::after { box-sizing: border-box; }

:root {
  --c-primary: #1a73e8;
  --c-danger:  #d93025;
  --c-warning: #f29900;
  --c-success: #1e8e3e;
  --c-bg:      #f8f9fa;
  --c-border:  #dadce0;
  --c-text:    #202124;
}

body { font-family: 'Segoe UI', Arial, sans-serif; font-size: 14px; color: var(--c-text); margin: 0; background: var(--c-bg); }

/* NAV */
.navbar { display: flex; align-items: center; gap: 16px; background: #fff; border-bottom: 1px solid var(--c-border); padding: 0 24px; height: 52px; }
.navbar .brand { font-weight: 700; font-size: 16px; color: var(--c-primary); text-decoration: none; }
.navbar .nav-user { margin-left: auto; color: #666; font-size: 13px; }
.navbar .nav-links { display: flex; gap: 4px; }
.navbar .nav-links a { padding: 6px 12px; border-radius: 4px; text-decoration: none; color: var(--c-text); font-size: 13px; }
.navbar .nav-links a:hover { background: var(--c-bg); }

.container { max-width: 1200px; margin: 0 auto; padding: 24px; }

/* TABS */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--c-border); margin-bottom: 20px; }
.tabs a { padding: 10px 20px; text-decoration: none; color: #666; font-size: 14px; border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tabs a.active { color: var(--c-primary); border-bottom-color: var(--c-primary); font-weight: 600; }
.tabs a:hover:not(.active) { color: var(--c-text); background: #f0f0f0; }

/* BUTTONS */
.btn { display: inline-block; padding: 8px 16px; border-radius: 4px; border: 1px solid var(--c-primary); background: var(--c-primary); color: #fff; cursor: pointer; font-size: 14px; text-decoration: none; }
.btn:hover { background: #1557b0; }
.btn-outline { background: #fff; color: var(--c-primary); }
.btn-outline:hover { background: #e8f0fe; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-danger { background: var(--c-danger); border-color: var(--c-danger); }
.btn-danger:hover { background: #b31412; }
.btn-warning { background: var(--c-warning); border-color: var(--c-warning); color: #fff; }

/* TABLE */
.table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.table th { background: #f1f3f4; padding: 10px 12px; text-align: left; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; color: #666; border-bottom: 1px solid var(--c-border); }
.table td { padding: 10px 12px; border-bottom: 1px solid #f0f0f0; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: #f8f9ff; }
.table tfoot td { background: #f8f9fa; font-weight: 600; border-top: 2px solid var(--c-border); }
.table .num { text-align: right; }
.table small { color: #888; font-size: 11px; display: block; }

/* FORMS */
label { display: block; margin-bottom: 12px; font-size: 13px; font-weight: 500; }
label input, label select, label textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--c-border); border-radius: 4px; font-size: 14px; }
label input:focus, label select:focus { outline: 2px solid var(--c-primary); border-color: transparent; }
.form-narrow { max-width: 400px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-inline { display: flex; align-items: center; gap: 12px; }

/* DIALOG */
dialog { border: none; border-radius: 8px; box-shadow: 0 4px 24px rgba(0,0,0,.2); padding: 24px; min-width: 380px; max-width: 600px; }
dialog::backdrop { background: rgba(0,0,0,.4); }
dialog h3 { margin: 0 0 16px; }
.dialog-btns { grid-column: 1 / -1; display: flex; gap: 8px; margin-top: 8px; }

/* FLASH / ALERTS */
.flash   { background: #e6f4ea; border: 1px solid #c8e6c9; color: #1e8e3e; padding: 10px 16px; border-radius: 4px; margin-bottom: 16px; }
.error   { background: #fce8e6; border: 1px solid #f5c6c2; color: #c62828; padding: 10px 16px; border-radius: 4px; margin-bottom: 16px; }
.warning { background: #fef3e2; border: 1px solid #fde68a; color: #7c4700; padding: 10px 16px; border-radius: 4px; margin-bottom: 16px; }
.hint    { color: #666; font-size: 12px; margin: -8px 0 12px; }

/* BADGES */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.badge-rozpracovany { background: #fef3e2; color: #7c4700; }
.badge-uzavreny     { background: #e6f4ea; color: #1e8e3e; }
.badge-schvaleny    { background: #e8f0fe; color: #1a73e8; }

/* PAGE HEADERS */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-header h2 { margin: 0; }
.vykaz-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.vykaz-header h2 { margin: 0; flex: 1; }
.vykaz-header .back { color: #666; text-decoration: none; font-size: 13px; }
.tab-actions { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; }

/* SOUHRN */
.souhrn-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 20px; }
.souhrn-card { background: #fff; border-radius: 8px; padding: 16px; box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.souhrn-card h3 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; color: #666; letter-spacing: .5px; }
.souhrn-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; }
.souhrn-card dt { color: #666; font-size: 13px; }
.souhrn-card dd { margin: 0; text-align: right; font-size: 13px; }
.souhrn-total { background: #fff; border-radius: 8px; padding: 16px 20px; box-shadow: 0 1px 3px rgba(0,0,0,.1); display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; margin-bottom: 20px; }
.souhrn-total .total-label { font-size: 15px; font-weight: 700; }
.souhrn-total .total-value { font-size: 20px; font-weight: 700; color: var(--c-primary); }
.souhrn-actions { display: flex; gap: 8px; }
.nadrz-box { margin-top: 16px; background: #fff; padding: 12px 16px; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.1); }

/* SETTINGS */
.settings-section { background: #fff; border-radius: 8px; padding: 20px 24px; box-shadow: 0 1px 3px rgba(0,0,0,.1); margin-bottom: 20px; }
.settings-section h3 { margin: 0 0 16px; }

/* AUTOCOMPLETE */
.autocomplete-list { position: absolute; background: #fff; border: 1px solid var(--c-border); border-radius: 4px; box-shadow: 0 2px 8px rgba(0,0,0,.15); z-index: 100; list-style: none; margin: 0; padding: 4px 0; max-height: 200px; overflow-y: auto; }
.autocomplete-list li { padding: 8px 12px; cursor: pointer; font-size: 13px; }
.autocomplete-list li:hover { background: #e8f0fe; }
.autocomplete-wrap { position: relative; }

/* STRAVNE PREVIEW */
.stravne-preview { grid-column: 1 / -1; padding: 8px 12px; background: #e8f4ea; border-radius: 4px; font-size: 13px; color: #1e8e3e; display: none; }
.stravne-preview.visible { display: block; }

/* LOGIN */
.login-page { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: var(--c-bg); }
.login-box { background: #fff; border-radius: 8px; box-shadow: 0 2px 16px rgba(0,0,0,.12); padding: 40px; width: 100%; max-width: 380px; }
.login-box h1 { margin: 0 0 4px; font-size: 22px; }
.login-sub { color: #888; margin: 0 0 24px; font-size: 13px; }
.login-box label input { margin-bottom: 0; }
.login-box button { width: 100%; margin-top: 16px; padding: 10px; font-size: 15px; }

.empty { color: #888; padding: 24px 0; }
code { background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-size: 12px; }