/* css/style.css */

:root {
    --bg:        #f4f3ef;
    --surface:   #ffffff;
    --border:    #e0ddd6;
    --border2:   #c8c5bc;
    --text:      #1a1917;
    --muted:     #6b6a66;
    --accent:    #2563eb;
    --accent-lt: #dbeafe;
    --purple:    #7c3aed;
    --purple-lt: #ede9fe;
    --teal:      #0d9488;
    --teal-lt:   #ccfbf1;
    --amber:     #d97706;
    --amber-lt:  #fef3c7;
    --danger:    #dc2626;
    --danger-lt: #fee2e2;
    --success:   #16a34a;
    --success-lt:#dcfce7;
    --radius:    10px;
    --radius-lg: 14px;
    --font:      'Segoe UI', system-ui, -apple-system, sans-serif;
    --mono:      'Courier New', Courier, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
}

/* ── Navbar ── */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0;
    padding: 0 24px;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.3px;
    margin-right: 32px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    white-space: nowrap;
}
.nav-icon { font-size: 18px; }

.nav-links { display: flex; gap: 4px; flex: 1; }

.nav-link {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 14px;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: var(--bg); color: var(--text); }
.nav-link.active { background: var(--accent-lt); color: var(--accent); font-weight: 500; }

.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--muted);
}

/* ── Main Content ── */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}
.page-header h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.4px; }

/* ── Cards ── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.card-header h3 { font-size: 15px; font-weight: 600; }

/* ── Stats Grid ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.icon-blue   { background: var(--accent-lt); color: var(--accent); }
.icon-purple { background: var(--purple-lt); color: var(--purple); }
.icon-teal   { background: var(--teal-lt);   color: var(--teal); }
.icon-amber  { background: var(--amber-lt);  color: var(--amber); }

.stat-info { display: flex; flex-direction: column; }
.stat-number { font-size: 26px; font-weight: 700; line-height: 1; letter-spacing: -1px; }
.stat-label  { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}
.data-table td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #fafaf8; }
.data-table .actions { display: flex; gap: 6px; flex-wrap: wrap; }

.detail-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.detail-table th {
    text-align: left;
    padding: 10px 0;
    font-weight: 500;
    color: var(--muted);
    width: 140px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    padding-top: 12px;
}
.detail-table td {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    padding-top: 12px;
}

/* ── Badges ── */
.badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 20px;
    background: var(--bg);
    border: 1px solid var(--border2);
    color: var(--muted);
}
.badge-purple { background: var(--purple-lt); color: var(--purple); border-color: transparent; }
.badge-teal   { background: var(--teal-lt);   color: var(--teal);   border-color: transparent; }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border2);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn:hover { background: var(--bg); border-color: var(--border2); }
.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: #1d4ed8; border-color: #1d4ed8; }

.btn-outline { background: transparent; }

.btn-danger { background: var(--danger-lt); color: var(--danger); border-color: transparent; }
.btn-danger:hover { background: #fca5a5; }

.btn-full { width: 100%; justify-content: center; }
.btn-sm   { padding: 5px 12px; font-size: 13px; }

/* ── Forms ── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--muted); margin-bottom: 6px; }
.required { color: var(--danger); }

input[type=text],
input[type=password],
input[type=number],
input[type=email],
select,
textarea {
    width: 100%;
    padding: 9px 13px;
    font-size: 14px;
    font-family: var(--font);
    border: 1px solid var(--border2);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    transition: border 0.15s, box-shadow 0.15s;
    outline: none;
}
input:disabled { background: var(--bg); color: var(--muted); cursor: not-allowed; }
input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 10px; margin-top: 24px; flex-wrap: wrap; }

.input-with-btn { display: flex; gap: 8px; }
.input-with-btn input { flex: 1; }

/* ── Alerts ── */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
}
.alert-error   { background: var(--danger-lt);  color: var(--danger);  border: 1px solid #fca5a5; }
.alert-success { background: var(--success-lt); color: var(--success); border: 1px solid #86efac; }

/* ── Auth Page ── */
.auth-page { background: var(--bg); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-container { width: 100%; max-width: 400px; padding: 20px; }
.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.logo-icon { font-size: 36px; margin-bottom: 8px; }
.auth-logo h1 { font-size: 18px; font-weight: 700; }
.auth-logo p  { color: var(--muted); font-size: 13px; margin-top: 4px; }
.auth-hint { text-align: center; color: var(--muted); font-size: 12px; margin-top: 16px; }

/* ── Item View Layouts ── */
.item-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 20px;
    align-items: start;
}

.code-card { text-align: center; }
.code-display {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 16px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}
.code-label { font-family: var(--mono); font-size: 14px; color: var(--muted); }

/* ── Add Form Layout ── */
.form-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    align-items: start;
}
.preview-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 12px;
}

/* ── Scanner Layout ── */
.scanner-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

/* ── Filters ── */
.filters-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.filters-bar input,
.filters-bar select { flex: 1; min-width: 150px; max-width: 260px; }

/* ── Utilities ── */
.text-muted  { color: var(--muted); }
.text-center { text-align: center; }
code {
    font-family: var(--mono);
    font-size: 12px;
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--accent);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .item-layout,
    .form-layout,
    .scanner-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .navbar { padding: 0 12px; }
    .nav-links { gap: 0; }
    .nav-brand { margin-right: 12px; font-size: 13px; }
    .main-content { padding: 20px 12px; }
}