/* DePop Inventory Tracker — mobile-first styles */

:root {
    --bg: #f4f4f8;
    --card: #ffffff;
    --ink: #1e1e2e;
    --ink-soft: #5b5b6b;
    --ink-muted: #8b8b9a;
    --line: #e3e3ec;
    --accent: #4f46e5;
    --accent-dark: #4338ca;
    --accent-soft: #eef2ff;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --warn-soft: #fef3c7;
    --warn-ink: #92400e;
    --radius: 14px;
    --shadow: 0 1px 3px rgba(20, 20, 40, 0.08), 0 4px 14px rgba(20, 20, 40, 0.05);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.45;
}

/* ---------- Top bar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 16px;
    padding-top: calc(12px + env(safe-area-inset-top));
    background: var(--ink);
    color: #fff;
}

.topbar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.topbar-title h1 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.logo { font-size: 1.3rem; }

.back-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    flex: none;
}

.topbar-actions {
    display: flex;
    gap: 8px;
    flex: none;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    min-height: 44px;               /* touch target */
    border: none;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.05s ease;
    -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: scale(0.97); }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary { background: rgba(255, 255, 255, 0.14); color: #fff; }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.25); }

.btn-danger { background: var(--danger-soft); color: var(--danger); min-height: 40px; padding: 8px 12px; }
.btn-danger:hover { background: #fecaca; }

.btn-large { width: 100%; min-height: 52px; font-size: 1.05rem; }

.btn-small { min-height: 40px; padding: 8px 12px; font-size: 0.85rem;
             background: var(--accent-soft); color: var(--accent); }
.btn-small:hover { background: #e0e7ff; }

/* ---------- Layout ---------- */
.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 16px;
    padding-bottom: 40px;
}

.container-narrow { max-width: 640px; }

/* ---------- Flash ---------- */
.flash {
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 14px;
    font-weight: 500;
    font-size: 0.95rem;
}

.flash ul { margin: 0; padding-left: 18px; }

.flash-success { background: var(--success-soft); color: #14532d; }
.flash-error { background: var(--danger-soft); color: #7f1d1d; }

/* ---------- Stats ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 12px 14px;
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink-muted);
    font-weight: 600;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: 2px;
    font-variant-numeric: tabular-nums;
}

.text-profit { color: var(--success); }
.text-loss { color: var(--danger); }

/* ---------- Filters ---------- */
.filters { margin-bottom: 16px; }

.filters input[type="search"] {
    width: 100%;
    min-height: 46px;
    padding: 10px 16px;
    border: 1.5px solid var(--line);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--card);
    margin-bottom: 10px;
    -webkit-appearance: none;
    appearance: none;
}

.filters input[type="search"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.chip-row { display: flex; gap: 8px; }

.chip {
    flex: 1;
    text-align: center;
    padding: 9px 14px;
    min-height: 40px;
    border-radius: 999px;
    background: var(--card);
    border: 1.5px solid var(--line);
    color: var(--ink-soft);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
}

.chip-active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

/* ---------- Item cards ---------- */
.item-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.item-card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.item-id {
    font-weight: 700;
    color: var(--ink-muted);
    font-size: 0.85rem;
    font-variant-numeric: tabular-nums;
}

.badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-sold { background: var(--success-soft); color: #14532d; }
.badge-loss { background: var(--danger-soft); color: #7f1d1d; }
.badge-unsold { background: var(--warn-soft); color: var(--warn-ink); }

.item-desc {
    font-weight: 600;
    font-size: 1rem;
    word-break: break-word;
}

.item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    color: var(--ink-soft);
    font-size: 0.82rem;
}

.item-money {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 14px;
    font-size: 0.88rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--ink-soft);
}

.item-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    border-top: 1px solid var(--line);
    padding-top: 10px;
}

.item-actions form { margin: 0; }

/* ---------- Empty state ---------- */
.empty-state {
    text-align: center;
    background: var(--card);
    border-radius: var(--radius);
    padding: 40px 20px;
    color: var(--ink-soft);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.empty-state p { margin: 0; }

/* ---------- Forms ---------- */
.form {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 16px;
}

.form-row { margin-bottom: 14px; }

.form-row label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-soft);
    margin-bottom: 6px;
}

.req { color: var(--danger); }

.form-row input {
    width: 100%;
    min-height: 48px;               /* comfortable touch input */
    padding: 10px 14px;
    border: 1.5px solid var(--line);
    border-radius: 12px;
    font-size: 1rem;                /* prevents iOS zoom */
    background: #fbfbfd;
    color: var(--ink);
    -webkit-appearance: none;
    appearance: none;
}

.form-row input:focus {
    outline: none;
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-row input[readonly], .form-row input[disabled] {
    background: var(--line);
    color: var(--ink-muted);
    font-weight: 600;
}

/* Date inputs need explicit height on iOS */
.form-row input[type="date"] { min-height: 48px; }

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}

/* ---------- Footer ---------- */
.site-footer {
    text-align: center;
    padding: 8px 16px 24px;
    color: var(--ink-muted);
    font-size: 0.8rem;
}

/* ---------- Desktop enhancements ---------- */
@media (min-width: 640px) {
    .topbar { padding: 14px 24px; }
    .container { padding: 24px; }
    .form-grid-3 { grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
    .form { padding: 24px; }
    .form-actions { flex-direction: row; }
    .form-actions .btn-large { width: auto; min-width: 180px; }
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
    .item-card { flex-direction: row; align-items: center; }
    .item-main { flex: 1; min-width: 0; }
    .item-actions {
        flex-direction: column;
        border-top: none;
        border-left: 1px solid var(--line);
        padding-top: 0;
        padding-left: 14px;
        margin-left: 8px;
    }
}