:root {
    --bg-base:    #0d0f14;
    --bg-card:    #151820;
    --bg-input:   #1c2030;
    --bg-hover:   #1e2336;
    --border:     #2a2f45;
    --border-lit: #3a4060;
    --accent:     #f0a500;
    --accent2:    #e06c1a;
    --text-1:     #eef0f8;
    --text-2:     #8892b0;
    --text-3:     #5a6480;
    --success:    #22c55e;
    --danger:     #ef4444;
    --warning:    #f59e0b;
    --info:       #3b82f6;
    --sample:     #a855f7;
    --radius:     12px;
    --radius-sm:  8px;
    --shadow:     0 4px 24px rgba(0,0,0,0.4);
    --font-head:  'Syne', sans-serif;
    --font-body:  'DM Sans', sans-serif;
    --nav-h:      60px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background: var(--bg-base);
    color: var(--text-1);
    font-family: var(--font-body);
    min-height: 100vh;
    padding-top: var(--nav-h);
}

/* ── NAVBAR ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--nav-h);
    background: rgba(13,15,20,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 8px;
    padding: 0 16px;
}

.nav-brand {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-head);
    font-weight: 800; font-size: 1.3rem;
    color: var(--accent);
    flex-shrink: 0;
}
.brand-icon { font-size: 1.4rem; }

.nav-links {
    display: flex; gap: 2px;
    overflow-x: auto; flex: 1;
    scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-link {
    display: flex; align-items: center; gap: 6px;
    padding: 6px 12px; border-radius: var(--radius-sm);
    color: var(--text-2); text-decoration: none;
    font-size: 0.85rem; font-weight: 500;
    white-space: nowrap; transition: all 0.2s;
    flex-shrink: 0;
}
.nav-link:hover { background: var(--bg-hover); color: var(--text-1); }
.nav-link.active { background: var(--accent); color: #000; font-weight: 700; }
.nav-icon { font-size: 1rem; }

.nav-right {
    display: flex; align-items: center; gap: 8px;
    flex-shrink: 0; margin-left: auto;
}
.user-badge {
    background: var(--bg-input);
    border: 1px solid var(--border);
    padding: 4px 10px; border-radius: 20px;
    font-size: 0.78rem; color: var(--text-2);
    display: none;
}
.btn-logout {
    background: transparent; border: 1px solid var(--border);
    color: var(--text-2); padding: 5px 12px;
    border-radius: var(--radius-sm); font-size: 0.8rem;
    cursor: pointer; text-decoration: none; transition: all 0.2s;
    display: none;
}
.btn-logout:hover { border-color: var(--danger); color: var(--danger); }

.hamburger {
    display: flex; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
    display: block; width: 22px; height: 2px;
    background: var(--text-2); border-radius: 2px; transition: all 0.3s;
}

.nav-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.6); z-index: 998;
}
.nav-overlay.open { display: block; }

/* Mobile nav slide */
@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: var(--nav-h); left: -260px; bottom: 0;
        width: 260px; flex-direction: column; gap: 4px;
        background: var(--bg-card);
        border-right: 1px solid var(--border);
        padding: 16px; overflow-y: auto; z-index: 999;
        transition: left 0.3s ease;
    }
    .nav-links.open { left: 0; }
    .nav-link { padding: 12px 16px; font-size: 0.95rem; }
    .user-badge { display: flex; }
}

@media (min-width: 769px) {
    .hamburger { display: none; }
    .user-badge { display: flex; }
    .btn-logout { display: flex; }
}

/* ── MAIN ── */
.main-content { padding: 16px; max-width: 1200px; margin: 0 auto; }

/* ── PAGE HEADER ── */
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.page-title {
    font-family: var(--font-head);
    font-size: 1.5rem; font-weight: 700;
    color: var(--text-1);
}
.page-subtitle { font-size: 0.85rem; color: var(--text-2); margin-top: 2px; }

/* ── CARDS ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.card-title {
    font-family: var(--font-head);
    font-size: 1rem; font-weight: 700;
    color: var(--text-1); margin-bottom: 16px;
    display: flex; align-items: center; gap: 8px;
}

/* ── STAT CARDS ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px; margin-bottom: 20px;
}
@media (min-width: 600px) {
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px; position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
}
.stat-card.accent::before { background: var(--accent); }
.stat-card.success::before { background: var(--success); }
.stat-card.danger::before { background: var(--danger); }
.stat-card.info::before { background: var(--info); }
.stat-card.sample::before { background: var(--sample); }

.stat-label { font-size: 0.75rem; color: var(--text-2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { font-family: var(--font-head); font-size: 1.5rem; font-weight: 800; }
.stat-sub { font-size: 0.75rem; color: var(--text-3); margin-top: 4px; }

/* ── BUTTONS ── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 18px; border-radius: var(--radius-sm);
    font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; border: none; text-decoration: none;
    transition: all 0.2s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent2); }
.btn-success { background: var(--success); color: #000; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c93333; }
.btn-ghost { background: var(--bg-input); color: var(--text-1); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--border-lit); background: var(--bg-hover); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon { padding: 8px; }

/* ── FORMS ── */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block; font-size: 0.82rem; font-weight: 600;
    color: var(--text-2); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: 0.04em;
}
.form-control {
    width: 100%; background: var(--bg-input);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text-1); padding: 11px 14px;
    font-family: var(--font-body); font-size: 0.95rem;
    transition: border-color 0.2s; -webkit-appearance: none;
}
.form-control:focus { outline: none; border-color: var(--accent); }
.form-control::placeholder { color: var(--text-3); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 500px; }
th {
    background: var(--bg-input); color: var(--text-2);
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; padding: 10px 14px; text-align: left;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 12px 14px; border-bottom: 1px solid var(--border);
    font-size: 0.88rem; vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

/* ── BADGES ── */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px;
    font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-goods    { background: rgba(34,197,94,0.15); color: var(--success); border: 1px solid rgba(34,197,94,0.3); }
.badge-sample   { background: rgba(168,85,247,0.15); color: var(--sample); border: 1px solid rgba(168,85,247,0.3); }
.badge-cash     { background: rgba(240,165,0,0.15); color: var(--accent); border: 1px solid rgba(240,165,0,0.3); }
.badge-cheque   { background: rgba(59,130,246,0.15); color: var(--info); border: 1px solid rgba(59,130,246,0.3); }
.badge-pending  { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.badge-paid     { background: rgba(34,197,94,0.15); color: var(--success); border: 1px solid rgba(34,197,94,0.3); }
.badge-partial  { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
.badge-admin    { background: rgba(240,165,0,0.15); color: var(--accent); border: 1px solid rgba(240,165,0,0.3); }
.badge-staff    { background: rgba(139,148,158,0.15); color: var(--text-2); border: 1px solid rgba(139,148,158,0.3); }

/* ── MODAL ── */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 2000;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
    align-items: flex-end; justify-content: center;
}
.modal-overlay.open { display: flex; }
@media (min-width: 600px) {
    .modal-overlay { align-items: center; }
}
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius) var(--radius) 0 0;
    width: 100%; max-width: 560px;
    max-height: 90vh; overflow-y: auto;
    padding: 24px; animation: slideUp 0.3s ease;
}
@media (min-width: 600px) {
    .modal { border-radius: var(--radius); }
}
@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px;
}
.modal-title { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; }
.modal-close {
    background: var(--bg-input); border: 1px solid var(--border);
    color: var(--text-2); width: 32px; height: 32px;
    border-radius: 50%; font-size: 1rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.modal-close:hover { color: var(--danger); border-color: var(--danger); }

/* ── SEARCH / FILTER BAR ── */
.filter-bar {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin-bottom: 16px;
}
.filter-bar .form-control { flex: 1; min-width: 160px; }

/* ── ITEMS LIST in delivery ── */
.items-list { display: flex; flex-direction: column; gap: 8px; }
.item-row {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 8px; align-items: center;
    background: var(--bg-input); padding: 10px;
    border-radius: var(--radius-sm); border: 1px solid var(--border);
}
@media (max-width: 480px) {
    .item-row { grid-template-columns: 1fr 1fr; }
    .item-row .remove-item { grid-column: 1/-1; }
}

/* ── ALERTS ── */
.alert {
    padding: 12px 16px; border-radius: var(--radius-sm);
    font-size: 0.9rem; margin-bottom: 16px;
    display: flex; align-items: center; gap: 10px;
}
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--success); }
.alert-danger   { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.alert-warning  { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: var(--warning); }

/* ── EMPTY STATE ── */
.empty-state {
    text-align: center; padding: 48px 20px; color: var(--text-3);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { font-size: 1rem; color: var(--text-2); margin-bottom: 6px; }

/* ── LOGIN PAGE ── */
.login-wrap {
    min-height: 100vh; display: flex;
    align-items: center; justify-content: center;
    padding: 20px; background: var(--bg-base);
}
.login-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 40px 32px;
    width: 100%; max-width: 380px; box-shadow: var(--shadow);
}
.login-logo {
    text-align: center; margin-bottom: 32px;
    font-family: var(--font-head); font-size: 2rem;
    font-weight: 800; color: var(--accent);
}
.login-logo p { font-size: 0.85rem; color: var(--text-2); font-weight: 400; margin-top: 4px; }

/* ── TABS ── */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; overflow-x: auto; }
.tab-btn {
    padding: 10px 16px; background: none; border: none;
    color: var(--text-2); font-family: var(--font-body);
    font-size: 0.88rem; font-weight: 500; cursor: pointer;
    white-space: nowrap; border-bottom: 2px solid transparent;
    transition: all 0.2s; margin-bottom: -1px;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── FAB ── */
.fab {
    position: fixed; bottom: 24px; right: 24px; z-index: 900;
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--accent); color: #000;
    font-size: 1.5rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(240,165,0,0.4);
    cursor: pointer; border: none;
    text-decoration: none; transition: all 0.2s;
}
.fab:hover { transform: scale(1.08); background: var(--accent2); }

/* ── MISC ── */
.text-accent  { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-muted   { color: var(--text-2); }
.text-sm      { font-size: 0.82rem; }
.fw-bold      { font-weight: 700; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 12px; }
.d-flex { display: flex; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .grid-2 { grid-template-columns: 1fr; } }

.summary-row {
    display: flex; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
.summary-row:last-child { border-bottom: none; }
.summary-row.total { font-weight: 700; font-size: 1rem; color: var(--accent); }