/* ============================================================================
   ADEBLED SERVICES — Invoicing System
   Design: clean, modern, professional, minimal, trustworthy
   Palette: white / light background + professional blue accent
   ============================================================================ */

:root {
    --blue: #0b5ed7;
    --blue-dark: #084298;
    --blue-light: #e8f1ff;
    --ink: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --bg: #f4f6f9;
    --white: #ffffff;
    --green: #15803d;
    --green-bg: #dcfce7;
    --amber: #b45309;
    --amber-bg: #fef3c7;
    --red: #b91c1c;
    --red-bg: #fee2e2;
    --gray-bg: #f3f4f6;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.55;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Public header ---------- */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand-logo { height: 34px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 22px; }
.main-nav a { color: var(--ink); font-weight: 500; }
.main-nav a:hover { color: var(--blue); text-decoration: none; }
.nav-cta {
    background: var(--blue);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 8px;
}
.nav-cta:hover { background: var(--blue-dark); }

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(180deg, var(--blue-light) 0%, var(--bg) 100%);
    padding: 70px 0 50px;
    text-align: center;
}
.hero h1 { font-size: 2.3rem; margin: 0 0 12px; color: var(--ink); }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 560px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-block;
    padding: 12px 26px;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.98rem;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-secondary:hover { background: var(--blue-light); text-decoration: none; }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #991b1b; }
.btn-block { width: 100%; text-align: center; }

/* ---------- Check invoice section ---------- */
.check-invoice-section { padding: 50px 0; }
.check-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 34px;
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
}
.check-card h2 { margin-top: 0; }
.check-card p { color: var(--muted); }
.check-form { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.check-form input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}
.check-form input[type="text"]:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-light); }

.features { padding: 40px 0 70px; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}
.feature-card h3 { margin-top: 0; color: var(--blue-dark); font-size: 1.05rem; }
.feature-card p { color: var(--muted); margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 22px 0;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

/* ---------- Alerts ---------- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: 0.95rem;
}
.alert-success { background: var(--green-bg); color: var(--green); }
.alert-error { background: var(--red-bg); color: var(--red); }
.alert-warning { background: var(--amber-bg); color: var(--amber); }

/* ---------- Auth pages ---------- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--blue-light) 0%, var(--bg) 100%);
    padding: 20px;
}
.auth-card {
    background: var(--white);
    padding: 38px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
}
.auth-card h1 { text-align: center; font-size: 1.3rem; margin-top: 0; }
.auth-card .brand-center { text-align: center; font-weight: 700; color: var(--blue); margin-bottom: 6px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.97rem;
    font-family: inherit;
    background: #fff;
    color: var(--ink);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px var(--blue-light);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-hint { color: var(--muted); font-size: 0.82rem; margin-top: 4px; }

/* ---------- Verification page ---------- */
.verify-wrapper { padding: 50px 0 70px; }
.verify-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 720px;
    margin: 0 auto;
    padding: 36px;
}
.verify-header { text-align: center; border-bottom: 2px solid var(--border); padding-bottom: 20px; margin-bottom: 20px; }
.verify-header .company { font-weight: 700; font-size: 1.2rem; }
.verified-badge {
    display: inline-block;
    background: var(--green-bg);
    color: var(--green);
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
    margin-top: 8px;
}
.not-found-badge {
    display: inline-block;
    background: var(--red-bg);
    color: var(--red);
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
}
.verify-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 22px; }
.verify-meta div span { display: block; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.4px; }
.verify-meta div strong { font-size: 1rem; }

table.invoice-table { width: 100%; border-collapse: collapse; margin: 18px 0; }
table.invoice-table th, table.invoice-table td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}
table.invoice-table th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; }
table.invoice-table td.num, table.invoice-table th.num { text-align: right; }

.totals-box { max-width: 320px; margin-left: auto; margin-top: 14px; }
.totals-box .row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.95rem; }
.totals-box .row.total { font-weight: 700; font-size: 1.1rem; border-top: 2px solid var(--border); margin-top: 6px; padding-top: 10px; }
.totals-box .row.balance { color: var(--red); font-weight: 700; }

.verify-footnote { text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 24px; }
.verify-actions { text-align: center; margin-top: 24px; }

/* ---------- Status badges ---------- */
.badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 0.78rem; font-weight: 700; }
.badge-paid { background: var(--green-bg); color: var(--green); }
.badge-partial { background: var(--amber-bg); color: var(--amber); }
.badge-unpaid { background: var(--gray-bg); color: var(--ink); }
.badge-overdue { background: var(--red-bg); color: var(--red); }
.badge-cancelled { background: #e5e7eb; color: #6b7280; text-decoration: line-through; }
.badge-draft { background: #ede9fe; color: #6d28d9; }

/* ---------- Admin layout ---------- */
.admin-body { background: var(--bg); margin: 0; }
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 240px;
    background: #0f1b33;
    color: #cbd5e1;
    flex-shrink: 0;
    padding: 22px 0;
    display: flex;
    flex-direction: column;
}
.sidebar-brand { padding: 0 22px 20px; font-weight: 700; color: #fff; font-size: 1.05rem; border-bottom: 1px solid #1e2b47; margin-bottom: 12px; }
.sidebar-brand span { display: block; font-weight: 400; font-size: 0.75rem; color: #94a3b8; margin-top: 4px; }
.sidebar-nav { display: flex; flex-direction: column; }
.sidebar-nav a { color: #cbd5e1; padding: 12px 22px; font-weight: 500; border-left: 3px solid transparent; }
.sidebar-nav a:hover { background: #16233f; text-decoration: none; }
.sidebar-nav a.active { background: #16233f; color: #fff; border-left-color: var(--blue); }
.sidebar-nav a.logout-link { margin-top: auto; color: #f87171; }

.admin-content { flex: 1; min-width: 0; }
.admin-topbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 26px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.admin-topbar h1 { font-size: 1.25rem; margin: 0; flex: 1; }
.admin-user { color: var(--muted); font-size: 0.9rem; }
.sidebar-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; }
.admin-body-inner { padding: 24px; }

/* ---------- Cards / stats ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 26px; }
.stat-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }
.stat-card .stat-label { color: var(--muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.4px; }
.stat-card .stat-value { font-size: 1.6rem; font-weight: 700; margin-top: 6px; }
.stat-card.accent .stat-value { color: var(--blue); }

.panel { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; margin-bottom: 20px; }
.panel h2 { margin-top: 0; font-size: 1.1rem; }
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; flex-wrap: wrap; gap: 10px; }

/* ---------- Data tables ---------- */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; min-width: 640px; }
table.data-table th, table.data-table td { padding: 11px 10px; border-bottom: 1px solid var(--border); font-size: 0.92rem; text-align: left; }
table.data-table th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; }
table.data-table tr:hover { background: #fafbfc; }
.actions-cell { display: flex; gap: 8px; flex-wrap: wrap; }
.icon-link { color: var(--muted); font-size: 0.85rem; border: 1px solid var(--border); padding: 4px 10px; border-radius: 6px; }
.icon-link:hover { color: var(--blue); border-color: var(--blue); text-decoration: none; }
.icon-link.danger:hover { color: var(--red); border-color: var(--red); }

.filters-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.filters-bar input, .filters-bar select {
    padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.9rem;
}
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.pagination a, .pagination span {
    padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.85rem; color: var(--ink);
}
.pagination a:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }
.pagination .current { background: var(--blue); color: #fff; border-color: var(--blue); }

.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }

/* ---------- Invoice form ---------- */
.line-items-table { width: 100%; border-collapse: collapse; margin: 14px 0; }
.line-items-table th { text-align: left; font-size: 0.78rem; text-transform: uppercase; color: var(--muted); padding: 6px 6px; }
.line-items-table td { padding: 6px; vertical-align: top; }
.line-items-table input { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; }
.line-items-table .amount-cell { white-space: nowrap; font-weight: 600; padding-top: 12px; }
.remove-row-btn { background: none; border: none; color: var(--red); cursor: pointer; font-size: 1.1rem; padding: 6px; }

.totals-summary { max-width: 340px; margin-left: auto; margin-top: 16px; }
.totals-summary .row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 0; }
.totals-summary .row label { font-size: 0.9rem; color: var(--muted); margin: 0; }
.totals-summary .row input { width: 140px; text-align: right; padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; }
.totals-summary .row.total { font-weight: 700; font-size: 1.15rem; border-top: 2px solid var(--border); padding-top: 12px; margin-top: 6px; }
.totals-summary .row.balance strong { color: var(--red); }

/* ---------- Toasts / modals ---------- */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 8px; box-shadow: var(--shadow); font-size: 0.9rem; opacity: 0.97; }

.modal-overlay {
    position: fixed; inset: 0; background: rgba(15, 23, 42, 0.5);
    display: none; align-items: center; justify-content: center; z-index: 998; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box { background: #fff; border-radius: var(--radius); padding: 26px; max-width: 420px; width: 100%; }
.modal-box h3 { margin-top: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

.settings-form fieldset { border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 20px; }
.settings-form legend { font-weight: 700; padding: 0 8px; color: var(--blue-dark); }
.masked-key { font-family: monospace; letter-spacing: 1px; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .admin-sidebar {
        position: fixed; left: -260px; top: 0; bottom: 0; z-index: 40; transition: left 0.2s ease; width: 240px;
    }
    .admin-sidebar.open { left: 0; }
    .sidebar-toggle { display: block; }
    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 10px; }
    .hero h1 { font-size: 1.7rem; }
    .verify-meta { grid-template-columns: 1fr; }
    .check-form { flex-direction: column; }
}