/* ══════════════════════════════════════════
   PandaServe Customer Portal — Stylesheet
   ══════════════════════════════════════════ */

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

:root {
    --primary: #0f172a;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: #dbeafe;
    --accent-bg: #eff6ff;
    --light: #f8fafc;
    --white: #fff;
    --gray-50: #f9fafb;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --success: #16a34a;
    --success-light: #dcfce7;
    --success-bg: #f0fdf4;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --danger-bg: #fef2f2;
    --purple: #7c3aed;
    --purple-light: #f3e8ff;
    --orange: #ea580c;
    --orange-light: #ffedd5;
    --sky: #0284c7;
    --sky-light: #e0f2fe;
    --sidebar-w: 260px;
    --header-h: 64px;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.08);
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--primary); background: var(--gray-100);
    line-height: 1.6; min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── LAYOUT SHELL ─────────────────────── */
.portal-layout { display: flex; min-height: 100vh; }

/* ── SIDEBAR ──────────────────────────── */
.sidebar {
    width: var(--sidebar-w); background: var(--primary);
    color: #fff; display: flex; flex-direction: column;
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 50;
    transition: transform .3s;
}
.sidebar-header {
    padding: 20px 24px; display: flex; align-items: center; gap: 10px;
    border-bottom: 1px solid var(--gray-800);
}
.sidebar-logo {
    width: 32px; height: 32px; background: var(--accent); border-radius: 8px;
    display: grid; place-items: center; font-size: .8rem; font-weight: 800; flex-shrink: 0;
}
.sidebar-brand { font-size: 1.1rem; font-weight: 700; }
.sidebar-brand small { display: block; font-size: .7rem; font-weight: 400; color: var(--gray-400); }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.sidebar-nav .nav-section { font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .8px; color: var(--gray-400); padding: 16px 12px 8px; }
.sidebar-nav a {
    display: flex; align-items: center; gap: 12px; padding: 10px 14px;
    border-radius: 8px; color: var(--gray-300); font-size: .88rem; font-weight: 500;
    transition: all .15s; text-decoration: none; margin-bottom: 2px;
}
.sidebar-nav a:hover { background: var(--gray-800); color: #fff; }
.sidebar-nav a.active { background: var(--accent); color: #fff; }
.sidebar-nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-badge {
    margin-left: auto; background: var(--danger); color: #fff;
    font-size: .65rem; font-weight: 700; padding: 2px 7px;
    border-radius: 999px; line-height: 1.4;
}

.sidebar-footer {
    padding: 16px 20px; border-top: 1px solid var(--gray-800);
    display: flex; align-items: center; gap: 12px;
}
.sidebar-avatar {
    width: 36px; height: 36px; border-radius: 50%; background: var(--accent);
    display: grid; place-items: center; font-weight: 700; font-size: .8rem; flex-shrink: 0;
}
.sidebar-user { flex: 1; min-width: 0; }
.sidebar-user .name { font-size: .85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user .email { font-size: .72rem; color: var(--gray-400); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-logout {
    background: none; border: none; color: var(--gray-400); cursor: pointer;
    padding: 6px; border-radius: 6px; transition: all .15s;
}
.sidebar-logout:hover { color: #fff; background: var(--gray-800); }

/* ── MAIN CONTENT ─────────────────────── */
.portal-main {
    flex: 1; margin-left: var(--sidebar-w); min-width: 0;
}

/* ── TOP HEADER ───────────────────────── */
.portal-header {
    height: var(--header-h); background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 32px; position: sticky; top: 0; z-index: 40;
}
.portal-header h1 { font-size: 1.2rem; font-weight: 700; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-btn {
    padding: 8px 12px; border-radius: 8px; border: 1px solid var(--gray-200);
    background: var(--white); font-size: .82rem; font-weight: 500;
    cursor: pointer; transition: all .15s; color: var(--gray-600);
    display: flex; align-items: center; gap: 6px;
}
.header-btn:hover { border-color: var(--accent); color: var(--accent); }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--primary); }

/* ── PAGE CONTENT ─────────────────────── */
.portal-content { padding: 28px 32px 60px; max-width: 1200px; }

/* ── BUTTONS ──────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: 8px; font-size: .85rem;
    font-weight: 600; text-decoration: none; transition: all .15s;
    border: none; cursor: pointer; line-height: 1;
}
.btn svg { width: 16px; height: 16px; }
.btn-sm { padding: 7px 14px; font-size: .8rem; }
.btn-xs { padding: 5px 10px; font-size: .75rem; border-radius: 6px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #b45309; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-outline { background: var(--white); color: var(--gray-600); border: 1.5px solid var(--gray-200); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--gray-500); border: none; }
.btn-ghost:hover { color: var(--accent); background: var(--accent-bg); }

/* ── STAT CARDS ───────────────────────── */
.stats-row {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px; margin-bottom: 28px;
}
.stat-card {
    background: var(--white); border-radius: var(--radius-lg); padding: 22px 24px;
    border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
}
.stat-card .stat-label { font-size: .78rem; font-weight: 500; color: var(--gray-500); margin-bottom: 6px; }
.stat-card .stat-value { font-size: 1.6rem; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-card .stat-sub { font-size: .75rem; color: var(--gray-400); margin-top: 4px; }
.stat-card .stat-icon {
    float: right; width: 40px; height: 40px; border-radius: 10px;
    display: grid; place-items: center;
}
.stat-card .stat-icon svg { width: 20px; height: 20px; }

/* ── PANELS / CARDS ───────────────────── */
.panel {
    background: var(--white); border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
    margin-bottom: 24px; overflow: hidden;
}
.panel-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 24px; border-bottom: 1px solid var(--gray-200);
}
.panel-header h2 { font-size: 1rem; font-weight: 600; }
.panel-body { padding: 20px 24px; }
.panel-body.flush { padding: 0; }

/* ── TABLES ───────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.data-table th {
    text-align: left; padding: 12px 20px; font-weight: 600; font-size: .75rem;
    text-transform: uppercase; letter-spacing: .5px; color: var(--gray-500);
    background: var(--gray-50); border-bottom: 1px solid var(--gray-200);
}
.data-table td { padding: 14px 20px; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--gray-50); }

/* ── BADGES / STATUS ──────────────────── */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 999px; font-size: .72rem;
    font-weight: 600; white-space: nowrap;
}
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--accent-light); color: var(--accent); }
.badge-purple { background: var(--purple-light); color: var(--purple); }
.badge-gray { background: var(--gray-100); color: var(--gray-500); }
.badge-dot::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}

/* ── FORMS ─────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--gray-600); }
.form-group input, .form-group select, .form-group textarea {
    padding: 10px 14px; border: 1.5px solid var(--gray-200); border-radius: 8px;
    font-size: .88rem; font-family: inherit; transition: border-color .15s;
    background: var(--white); color: var(--primary);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* ── MODAL ─────────────────────────────── */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,.4);
    display: flex; align-items: center; justify-content: center;
    z-index: 200; backdrop-filter: blur(4px);
    opacity: 0; pointer-events: none; transition: opacity .2s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
    background: var(--white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); width: 560px; max-width: 95vw;
    max-height: 90vh; overflow-y: auto;
    transform: translateY(20px); transition: transform .2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 24px; border-bottom: 1px solid var(--gray-200);
}
.modal-header h3 { font-size: 1.05rem; font-weight: 600; }
.modal-close {
    background: none; border: none; font-size: 1.2rem; color: var(--gray-400);
    cursor: pointer; padding: 4px; border-radius: 6px;
}
.modal-close:hover { color: var(--primary); background: var(--gray-100); }
.modal-body { padding: 24px; }
.modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    padding: 16px 24px; border-top: 1px solid var(--gray-200);
}

/* ── TICKET DETAIL ────────────────────── */
.ticket-messages { display: flex; flex-direction: column; gap: 16px; }
.ticket-msg {
    padding: 16px 20px; border-radius: var(--radius); border: 1px solid var(--gray-200);
}
.ticket-msg.staff { background: var(--accent-bg); border-color: var(--accent-light); }
.ticket-msg-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 8px;
}
.ticket-msg-author { font-weight: 600; font-size: .85rem; }
.ticket-msg-time { font-size: .75rem; color: var(--gray-400); }
.ticket-msg-body { font-size: .88rem; color: var(--gray-700); line-height: 1.7; }
.ticket-reply { margin-top: 16px; }
.ticket-reply textarea { width: 100%; margin-bottom: 10px; }

/* ── SERVICE CARDS ────────────────────── */
.svc-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px;
}
.svc-card {
    background: var(--white); border-radius: var(--radius-lg); padding: 24px;
    border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm);
    display: flex; flex-direction: column;
}
.svc-card-top { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 14px; }
.svc-card-icon {
    width: 44px; height: 44px; border-radius: 10px; display: grid;
    place-items: center; flex-shrink: 0;
}
.svc-card-icon svg { width: 22px; height: 22px; }
.svc-card-info { flex: 1; }
.svc-card-info h3 { font-size: .95rem; font-weight: 600; margin-bottom: 2px; }
.svc-card-info .svc-price { font-size: .85rem; color: var(--accent); font-weight: 600; }
.svc-card-info .svc-price span { color: var(--gray-400); font-weight: 400; }
.svc-card-details { font-size: .82rem; color: var(--gray-500); margin-bottom: 16px; flex: 1; }
.svc-card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--gray-100); }
.svc-card-meta { font-size: .75rem; color: var(--gray-400); }

/* ── INVOICE ──────────────────────────── */
.invoice-detail {
    max-width: 800px;
    background: var(--white);
    border-radius: var(--radius-lg, 12px);
    border: 1px solid var(--gray-200);
    padding: 40px;
}
.inv-letterhead {
    display: flex; justify-content: space-between; align-items: flex-start;
    padding-bottom: 24px; border-bottom: 2px solid var(--accent); margin-bottom: 28px;
}
.inv-letterhead-logo { display: flex; align-items: center; gap: 12px; }
.inv-letterhead-logo .inv-logo-icon {
    width: 40px; height: 40px; background: var(--accent); border-radius: 10px;
    display: grid; place-items: center; color: #fff; font-size: .9rem; font-weight: 800;
}
.inv-letterhead-logo .inv-logo-text { font-size: 1.2rem; font-weight: 700; color: var(--primary); }
.inv-letterhead-right { text-align: right; font-size: .8rem; color: var(--gray-500); line-height: 1.6; }

.inv-status-banner {
    display: flex; align-items: center; gap: 10px; padding: 12px 16px;
    border-radius: 8px; margin-bottom: 24px; font-size: .85rem; font-weight: 600;
}
.inv-status-banner.paid { background: #dcfce7; color: #15803d; }
.inv-status-banner.unpaid { background: #fef3c7; color: #92400e; }
.inv-status-banner.overdue { background: #fee2e2; color: #991b1b; }

.inv-title-bar {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 28px; flex-wrap: wrap; gap: 16px;
}
.inv-title-bar h2 { font-size: 1.4rem; font-weight: 800; color: var(--primary); margin: 0; }
.inv-title-bar .inv-number-label {
    font-size: .7rem; text-transform: uppercase; color: var(--gray-400);
    letter-spacing: .08em; margin-bottom: 2px;
}
.inv-dates-grid {
    display: grid; grid-template-columns: auto auto; gap: 4px 16px;
    font-size: .82rem; color: var(--gray-500); text-align: right;
}
.inv-dates-grid dt { font-weight: 400; }
.inv-dates-grid dd { font-weight: 600; color: var(--primary); margin: 0; }

.inv-parties {
    display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
    margin-bottom: 28px; font-size: .85rem;
}
.inv-party-label {
    font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
    color: var(--accent); margin-bottom: 6px;
}
.inv-party-name { font-weight: 700; color: var(--primary); font-size: .92rem; margin-bottom: 4px; }
.inv-party-details { color: var(--gray-500); line-height: 1.6; }

.inv-table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: .85rem; }
.inv-table thead { background: var(--gray-50); }
.inv-table th {
    text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--gray-200);
    font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
    color: var(--gray-500); font-weight: 600;
}
.inv-table td { padding: 12px 14px; border-bottom: 1px solid var(--gray-100); color: var(--gray-600); }
.inv-table tbody tr:last-child td { border-bottom: none; }
.inv-table .text-right { text-align: right; }
.inv-table .item-name { font-weight: 600; color: var(--primary); }

.inv-totals { display: flex; justify-content: flex-end; margin-bottom: 28px; }
.inv-totals-inner { width: 260px; font-size: .85rem; }
.inv-totals-row {
    display: flex; justify-content: space-between; padding: 7px 0;
    border-bottom: 1px solid var(--gray-100); color: var(--gray-500);
}
.inv-totals-row.grand {
    border-bottom: none; border-top: 2px solid var(--gray-200);
    padding-top: 10px; margin-top: 4px;
    font-weight: 800; font-size: 1.05rem; color: var(--primary);
}
.inv-totals-row.grand .inv-grand-amount { color: var(--accent); }

.inv-footer-notes {
    background: var(--gray-50); border-radius: 8px; padding: 16px 20px;
    margin-bottom: 24px; font-size: .8rem; color: var(--gray-500); line-height: 1.6;
}
.inv-footer-notes strong { color: var(--gray-600); }

.inv-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ── INVOICE PRINT ───────────────────── */
@media print {
    .sidebar, .portal-header, #invoiceListPanel, #paymentListPanel,
    .toast, .inv-actions, .mobile-menu-btn { display: none !important; }
    .portal-layout { display: block !important; }
    .portal-main { margin: 0 !important; padding: 0 !important; width: 100% !important; }
    .portal-content { padding: 0 !important; }
    body { background: #fff !important; }
    .invoice-detail {
        max-width: 100% !important; width: 100% !important;
        box-shadow: none !important; border: none !important;
        border-radius: 0 !important; padding: 20px !important;
    }
    .inv-status-banner, .inv-table thead, .inv-footer-notes, .inv-logo-icon {
        print-color-adjust: exact !important;
        -webkit-print-color-adjust: exact !important;
    }
    .inv-table, .inv-totals, .inv-footer-notes { page-break-inside: avoid; }
}

/* ── EMPTY STATE ──────────────────────── */
.empty-state {
    text-align: center; padding: 48px 24px; color: var(--gray-500);
}
.empty-state svg { width: 64px; height: 64px; margin: 0 auto 16px; opacity: .35; }
.empty-state h3 { font-size: 1.05rem; color: var(--primary); margin-bottom: 6px; }
.empty-state p { font-size: .88rem; margin-bottom: 20px; }

/* ── TOAST ─────────────────────────────── */
.toast {
    position: fixed; bottom: 24px; right: 24px;
    background: var(--primary); color: #fff; padding: 12px 20px;
    border-radius: 10px; font-size: .85rem; font-weight: 500;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    transform: translateY(80px); opacity: 0;
    transition: all .25s ease; z-index: 300; max-width: 340px;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ── LOGIN PAGE ───────────────────────── */
.login-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%); padding: 24px;
}
.login-card {
    background: var(--white); border-radius: var(--radius-lg); padding: 40px;
    width: 420px; max-width: 100%; box-shadow: var(--shadow-lg);
}
.login-card .login-logo {
    display: flex; align-items: center; gap: 10px; justify-content: center;
    margin-bottom: 32px;
}
.login-card .login-logo .logo-icon {
    width: 40px; height: 40px; background: var(--accent); border-radius: 10px;
    display: grid; place-items: center; color: #fff; font-size: 1rem; font-weight: 800;
}
.login-card .login-logo .logo-text { font-size: 1.4rem; font-weight: 700; }
.login-card h2 { text-align: center; font-size: 1.3rem; margin-bottom: 6px; }
.login-card .login-sub { text-align: center; color: var(--gray-500); font-size: .9rem; margin-bottom: 28px; }
.login-card .form-group { margin-bottom: 16px; }
.login-card .btn { width: 100%; justify-content: center; padding: 12px; margin-top: 8px; }
.login-card .login-footer { text-align: center; margin-top: 20px; font-size: .82rem; color: var(--gray-500); }
.login-card .login-footer a { color: var(--accent); font-weight: 500; }
.login-demo { background: var(--accent-bg); padding: 14px 16px; border-radius: 8px; margin-bottom: 20px; font-size: .8rem; color: var(--gray-600); border: 1px solid var(--accent-light); }
.login-demo strong { color: var(--accent); }

/* ── RESPONSIVE ───────────────────────── */
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .portal-main { margin-left: 0; }
    .mobile-menu-btn { display: block; }
    .portal-content { padding: 20px 16px 60px; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .svc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
    .stats-row { grid-template-columns: 1fr; }
    .portal-header { padding: 0 16px; }
    .data-table { font-size: .78rem; }
    .data-table th, .data-table td { padding: 10px 12px; }
}