/* ============================================================
   CheaperPrice — mobile-first dark theme (English-only)
   ============================================================ */
:root {
    --bg-primary: #0b1220;
    --bg-secondary: #111a2e;
    --bg-tertiary: #1a2540;
    --border-color: rgba(148, 163, 184, 0.16);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-dim: #64748b;
    --accent: #38bdf8;
    --hot-green: #22c55e;
    --hot-green-bg: rgba(34, 197, 94, 0.12);
    --low-blue: #3b82f6;
    --low-blue-bg: rgba(59, 130, 246, 0.12);
    --normal-gray: #64748b;
    --normal-gray-bg: rgba(100, 116, 139, 0.12);
    --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.45;
}
.hidden { display: none !important; }
.dim { color: var(--text-dim); }

/* Header */
.app-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(11, 18, 32, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}
.header-inner {
    max-width: 1080px; margin: 0 auto; padding: 14px 16px;
    display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand-icon { font-size: 1.35rem; }
.brand-name { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.02em; }
.updated { font-size: 0.75rem; color: var(--text-secondary); }

.container { max-width: 1080px; margin: 0 auto; padding: 16px; padding-bottom: 48px; }

/* Summary cards */
.summary-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.summary-card {
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 14px 12px; text-align: center;
    cursor: pointer; transition: transform .15s ease, border-color .15s ease;
    color: inherit; font: inherit;
}
.summary-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.summary-num { font-size: 1.6rem; font-weight: 800; }
.summary-card.hot .summary-num { color: var(--hot-green); }
.summary-card.low .summary-num { color: var(--low-blue); }
.summary-card.best .summary-num { color: var(--accent); }
.summary-label { font-size: 0.72rem; color: var(--text-secondary); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.04em; }

/* Tabs */
.tabs { display: flex; gap: 8px; margin-bottom: 12px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
    flex-shrink: 0; padding: 9px 16px; border-radius: 999px;
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    color: var(--text-secondary); font-size: 0.85rem; font-weight: 600; cursor: pointer;
    transition: all .15s ease;
}
.tab.active { background: var(--accent); border-color: var(--accent); color: #06263a; }

/* Filters */
.filter-bar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.filter-bar select {
    width: 100%; padding: 9px 10px; border-radius: 10px;
    background: var(--bg-secondary); color: var(--text-primary);
    border: 1px solid var(--border-color); font-size: 0.82rem; cursor: pointer;
}
.list-meta { font-size: 0.75rem; color: var(--text-dim); margin-bottom: 8px; min-height: 1em; }

/* Deal rows (list layout) */
.deal-list { display: flex; flex-direction: column; gap: 10px; }
.deal-row {
    display: grid;
    grid-template-columns: 110px 1fr auto;
    grid-template-areas: "badge route price" "badge route deal" "badge route actions";
    gap: 4px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--normal-gray);
    border-radius: var(--radius);
    padding: 13px 14px;
    cursor: pointer;
    transition: transform .15s ease, border-color .15s ease;
}
.deal-row:hover { transform: translateY(-1px); border-color: var(--accent); }
.deal-row.hot { border-left-color: var(--hot-green); background: linear-gradient(90deg, var(--hot-green-bg), var(--bg-secondary) 55%); }
.deal-row.low { border-left-color: var(--low-blue); background: linear-gradient(90deg, var(--low-blue-bg), var(--bg-secondary) 55%); }
.row-badge { grid-area: badge; align-self: start; }
.badge {
    display: inline-block; padding: 5px 9px; border-radius: 8px;
    font-size: 0.68rem; font-weight: 800; letter-spacing: 0.03em; white-space: nowrap;
}
.badge.hot { background: var(--hot-green-bg); color: var(--hot-green); border: 1px solid rgba(34,197,94,.4); }
.badge.low { background: var(--low-blue-bg); color: #93c5fd; border: 1px solid rgba(59,130,246,.4); }
.badge.normal { background: var(--normal-gray-bg); color: #cbd5e1; border: 1px solid var(--border-color); }
.badge.unknown { background: transparent; color: var(--text-dim); border: 1px dashed var(--border-color); }
.row-route { grid-area: route; min-width: 0; }
.route-pair { font-size: 1.05rem; font-weight: 800; }
.route-pair .arrow { color: var(--accent); }
.route-meta { font-size: 0.72rem; color: var(--text-secondary); }
.route-carrier { font-size: 0.72rem; color: var(--text-secondary); }
.row-price { grid-area: price; text-align: right; }
.price-now { font-size: 1.45rem; font-weight: 800; color: var(--hot-green); }
.deal-row.low .price-now { color: #93c5fd; }
.deal-row.normal .price-now, .deal-row.unknown .price-now { color: var(--text-primary); }
.price-normal { font-size: 0.78rem; color: var(--text-secondary); }
.row-deal { grid-area: deal; }
.row-save { font-size: 0.78rem; font-weight: 700; color: var(--hot-green); }
.deal-row.low .row-save { color: #93c5fd; }
.row-conf { font-size: 0.68rem; margin-top: 1px; }
.conf.high { color: var(--hot-green); }
.conf.med { color: #fbbf24; }
.conf.low { color: var(--text-dim); }
.row-verified { font-size: 0.68rem; color: var(--text-secondary); margin-top: 2px; }
.row-actions { grid-area: actions; display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.btn-view {
    display: inline-block; padding: 9px 14px; border-radius: 10px;
    background: var(--accent); color: #06263a; font-weight: 800; font-size: 0.8rem;
    text-decoration: none; border: none; cursor: pointer; white-space: nowrap;
}
.btn-view.big { display: block; text-align: center; margin-top: 14px; padding: 13px; font-size: 0.95rem; }
.btn-details {
    padding: 9px 12px; border-radius: 10px; background: var(--bg-tertiary);
    color: var(--text-secondary); border: 1px solid var(--border-color);
    font-weight: 600; font-size: 0.78rem; cursor: pointer;
}

/* Empty / error states */
.empty-state { text-align: center; padding: 56px 20px; color: var(--text-secondary); }
.empty-icon { font-size: 3rem; margin-bottom: 10px; }
.empty-state h2 { font-size: 1.15rem; margin-bottom: 6px; color: var(--text-primary); }
.api-error { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.35); color: #fca5a5; padding: 14px; border-radius: var(--radius); font-size: .85rem; }
.load-more-wrap { text-align: center; margin-top: 16px; }
.load-more { padding: 11px 26px; border-radius: 999px; background: var(--bg-tertiary); color: var(--accent); border: 1px solid var(--border-color); font-weight: 700; cursor: pointer; }

/* Footer */
.app-footer { max-width: 1080px; margin: 0 auto; padding: 18px 16px 40px; border-top: 1px solid var(--border-color); font-size: 0.72rem; color: var(--text-dim); }
.footer-dim { margin-top: 4px; opacity: .7; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2,6,17,.7); backdrop-filter: blur(3px); }
.modal-card {
    position: relative; width: 100%; max-width: 560px; max-height: 88vh; overflow-y: auto;
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: 18px 18px 0 0; padding: 20px 18px 24px;
}
.modal-close { position: absolute; top: 12px; right: 12px; background: var(--bg-tertiary); border: 1px solid var(--border-color); color: var(--text-secondary); width: 30px; height: 30px; border-radius: 999px; cursor: pointer; font-size: .85rem; }
.modal-loading { text-align: center; color: var(--text-secondary); padding: 40px 0; }
.detail-head h2 { font-size: 1.5rem; margin: 8px 0 2px; }
.detail-sub { font-size: .78rem; color: var(--text-secondary); }
.detail-prices { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 16px 0; }
.dp { background: var(--bg-tertiary); border-radius: 10px; padding: 10px 8px; text-align: center; }
.dp span { display: block; font-size: .64rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .03em; }
.dp strong { font-size: .98rem; }
.dp.now strong { color: var(--hot-green); }
.detail-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; font-size: .8rem; color: var(--text-secondary); margin-bottom: 14px; }
.evt-title { font-size: .9rem; margin: 6px 0 8px; }
.evt-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.evt { display: flex; justify-content: space-between; gap: 10px; background: var(--bg-tertiary); border-radius: 9px; padding: 8px 11px; font-size: .76rem; }
.evt-type { font-weight: 700; }
.evt-hot { border-left: 3px solid var(--hot-green); }
.evt-low-price { border-left: 3px solid var(--low-blue); }
.evt-price em { font-style: normal; color: var(--hot-green); }
.evt-time { color: var(--text-dim); }
.evt-none { font-size: .8rem; color: var(--text-dim); }

/* Tablet ≥640px */
@media (min-width: 640px) {
    .summary-row { gap: 14px; }
    .summary-num { font-size: 2rem; }
    .modal { align-items: center; }
    .modal-card { border-radius: 18px; }
}

/* Desktop ≥900px: single-line list rows (5-column) */
@media (min-width: 900px) {
    .deal-row {
        grid-template-columns: 118px 1.3fr 150px 1.2fr 200px;
        grid-template-areas: "badge route price deal actions";
        align-items: center;
    }
    .row-actions { flex-direction: row; justify-content: flex-end; }
}

/* ===== Trust & transparency ===== */
.trust-note {
    font-size: 0.72rem; color: var(--text-secondary);
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: 10px; padding: 8px 12px; margin-bottom: 12px;
}
.chip {
    display: inline-block; padding: 2px 7px; border-radius: 6px;
    background: var(--bg-tertiary); border: 1px solid var(--border-color);
    font-size: 0.66rem; font-weight: 700; color: var(--text-secondary);
    white-space: nowrap; vertical-align: middle;
}
.chip.dim2 { opacity: 0.6; font-weight: 500; }
.tag {
    display: inline-block; padding: 2px 7px; border-radius: 6px;
    font-size: 0.66rem; font-weight: 700; white-space: nowrap;
}
.tag.warn { background: rgba(251,191,36,.12); color: #fbbf24; border: 1px solid rgba(251,191,36,.35); }
.tag.ok { background: var(--hot-green-bg); color: var(--hot-green); border: 1px solid rgba(34,197,94,.35); }
.f-fresh { color: var(--hot-green); font-weight: 700; }
.f-recent { color: #fbbf24; }
.f-aging { color: var(--text-dim); }
.detail-conds { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 4px; }
.src-list { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.src-item {
    display: grid; grid-template-columns: auto auto 1fr auto auto;
    gap: 8px; align-items: center;
    background: var(--bg-tertiary); border-radius: 9px; padding: 8px 11px; font-size: 0.76rem;
}
.src-name { font-weight: 700; }
.src-price { font-weight: 800; color: var(--hot-green); }
.src-cond { color: var(--text-secondary); }
.src-age { color: var(--text-dim); font-size: 0.68rem; }
.src-link { color: var(--accent); text-decoration: none; font-weight: 700; }
@media (max-width: 560px) {
    .src-item { grid-template-columns: auto auto; grid-template-areas: "name price" "cond age" "link link"; }
    .src-name { grid-area: name; } .src-price { grid-area: price; text-align: right; }
    .src-cond { grid-area: cond; } .src-age { grid-area: age; text-align: right; }
    .src-link { grid-area: link; text-align: center; background: var(--bg-secondary); border-radius: 7px; padding: 6px; }
}

/* ===== Manual lookup ===== */
.lookup-panel {
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 18px 16px; margin-bottom: 14px;
}
.lk-title { font-size: 1.1rem; margin-bottom: 4px; }
.lk-sub { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 14px; }
.lookup-form { display: grid; grid-template-columns: repeat(5, 1fr) auto; gap: 10px; align-items: end; }
.lookup-form label { display: flex; flex-direction: column; gap: 4px; font-size: 0.68rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .04em; }
.lookup-form input, .lookup-form select {
    padding: 10px; border-radius: 10px; border: 1px solid var(--border-color);
    background: var(--bg-primary); color: var(--text-primary); font-size: 0.9rem;
}
.lookup-form input:focus, .lookup-form select:focus { outline: none; border-color: var(--accent); }
.lk-go { height: 42px; }
.lk-status { margin-top: 12px; font-size: 0.82rem; border-radius: 10px; padding: 10px 12px; }
.lk-status.running { background: rgba(59,130,246,.1); border: 1px solid rgba(59,130,246,.35); color: #93c5fd; }
.lk-status.done { background: var(--hot-green-bg); border: 1px solid rgba(34,197,94,.4); color: var(--hot-green); }
.lk-status.error { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.35); color: #fca5a5; }
#lkSaved, #lkResults { margin-top: 16px; }
.lk-best { background: var(--bg-tertiary); border-radius: 9px; padding: 9px 11px; font-size: .84rem; list-style: none; }
.src-item.lk-big { grid-template-columns: 110px auto 1fr auto; align-items: center; }
.refresh-toast {
    position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
    z-index: 200; background: var(--bg-tertiary); color: var(--accent);
    border: 1px solid rgba(56,189,248,.4); border-radius: 999px;
    padding: 9px 18px; font-size: .78rem; font-weight: 700;
    box-shadow: 0 6px 24px rgba(0,0,0,.4); animation: toast-in .25s ease;
}
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }
@media (max-width: 760px) {
    .lookup-form { grid-template-columns: 1fr 1fr; }
    .lk-go { grid-column: span 2; }
    .src-item.lk-big { grid-template-columns: 1fr auto; }
}

/* ===== Category sidebar layout ===== */
.layout {
    display: grid;
    grid-template-columns: 225px minmax(0, 1fr);
    gap: 20px;
    max-width: 1180px;
    margin: 0 auto;
    padding: 16px;
}
.layout .container { max-width: none; margin: 0; padding: 0; }
.nav-burger { display: none; background: var(--bg-tertiary); border: 1px solid var(--border-color); color: var(--text-primary); width: 34px; height: 34px; border-radius: 9px; font-size: 1rem; cursor: pointer; }
.header-right { display: flex; align-items: center; gap: 10px; }
.sidebar {
    background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 12px; align-self: start;
    position: sticky; top: 66px; max-height: calc(100vh - 82px); overflow-y: auto;
}
.sidebar-head { display: flex; align-items: center; gap: 7px; padding: 4px 6px 12px; }
.sidebar-close { display: none; margin-left: auto; background: var(--bg-tertiary); border: 1px solid var(--border-color); color: var(--text-secondary); width: 26px; height: 26px; border-radius: 999px; cursor: pointer; }
.nav-group { margin-bottom: 8px; }
.nav-group-toggle {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    background: transparent; border: none; color: var(--text-secondary);
    font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase;
    padding: 8px 8px; cursor: pointer; border-radius: 8px;
}
.nav-group-toggle:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-group-toggle .chev { transition: transform .18s ease; font-size: 0.7rem; }
.nav-group.collapsed .chev { transform: rotate(-90deg); }
.nav-list { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.nav-group.collapsed .nav-list { display: none; }
.nav-item {
    display: flex; align-items: center; gap: 9px;
    padding: 9px 10px; border-radius: 10px; text-decoration: none;
    color: var(--text-primary); font-size: 0.86rem; font-weight: 600;
    cursor: pointer; transition: background .13s ease;
}
.nav-item:hover:not(.disabled) { background: var(--bg-tertiary); }
.nav-item.active { background: rgba(56,189,248,.14); color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }
.nav-item.disabled { opacity: 0.45; cursor: not-allowed; }
.ni-icon { width: 20px; text-align: center; }
.soon {
    margin-left: auto; font-size: 0.58rem; font-weight: 800; letter-spacing: 0.05em;
    background: var(--bg-tertiary); border: 1px solid var(--border-color);
    color: var(--text-dim); border-radius: 999px; padding: 2px 7px;
}
.sidebar-foot { font-size: 0.66rem; color: var(--text-dim); padding: 8px 6px 2px; border-top: 1px solid var(--border-color); margin-top: 6px; }
.sb-backdrop { display: none; }

/* Mobile: off-canvas drawer */
@media (max-width: 899px) {
    .nav-burger { display: inline-block; }
    .layout { grid-template-columns: 1fr; padding-top: 12px; }
    .sidebar {
        position: fixed; top: 0; left: 0; bottom: 0; z-index: 300;
        width: 264px; max-height: none; border-radius: 0 16px 16px 0;
        transform: translateX(-105%); transition: transform .22s ease;
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-close { display: inline-block; }
    .sb-backdrop.show { display: block; position: fixed; inset: 0; z-index: 250; background: rgba(2,6,17,.65); backdrop-filter: blur(2px); }
}