:root {
    --ink: #1b2a4a;
    --ink-2: #0f1830;
    --paper: #f7f5f0;
    --paper-2: #ffffff;
    --seal: #b23a2e;
    --seal-dark: #8f2e24;
    --line: #d8d3c6;
    --text: #23262b;
    --muted: #5b6472;
    --green: #2f6f4e;
    --green-bg: #e4f2e9;
    --red-bg: #f7e4e1;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
}

h1, h2, h3, .brand-name, .font-serif {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: normal;
}

a { color: inherit; }

/* ---------------- Top bar ---------------- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 40px;
    border-bottom: 1px solid var(--line);
    background: var(--paper-2);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { color: var(--seal); font-size: 20px; }
.brand-name { font-size: 20px; letter-spacing: .02em; }
.role-badge {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 600;
    color: var(--seal);
    border: 1px solid rgba(178,58,46,.4);
    border-radius: 999px;
    padding: 3px 10px;
    margin-left: 6px;
}
.topbar-right { display: flex; align-items: center; gap: 16px; }
.user-name { color: var(--muted); font-size: 14px; }

/* ---------------- Buttons ---------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: 3px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, color .15s, border-color .15s;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--seal); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-block { width: 100%; justify-content: center; }

/* ---------------- Landing page ---------------- */
.hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 70px 40px 40px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 50px;
    align-items: center;
}
.eyebrow {
    text-transform: uppercase;
    letter-spacing: .18em;
    font-size: 12px;
    font-weight: 700;
    color: var(--seal);
    margin: 0 0 14px;
}
.hero h1 { font-size: 42px; line-height: 1.15; margin: 0 0 20px; max-width: 620px; }
.hero p.lead { color: var(--muted); font-size: 17px; max-width: 560px; margin: 0 0 30px; }
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    margin-top: 56px;
    padding-top: 36px;
    border-top: 1px solid var(--line);
    max-width: 700px;
}
.feature .icon { color: var(--seal); font-size: 18px; margin-bottom: 8px; }
.feature h3 { font-size: 14px; font-weight: 700; margin: 0 0 4px; font-family: inherit; }
.feature p { font-size: 13px; color: var(--muted); margin: 0; }

.stamp { width: 170px; height: 170px; flex-shrink: 0; }

/* ---------------- Cards / layout ---------------- */
.page { max-width: 1100px; margin: 0 auto; padding: 40px; }
.page-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    gap: 16px;
    margin-bottom: 28px;
}
.page-header h1 { font-size: 26px; margin: 0 0 4px; }
.page-header .sub { color: var(--muted); font-size: 14px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 30px; }
.stat-card {
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.stat-card .stat-icon { font-size: 18px; }
.stat-card .stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.stat-card .stat-value { font-size: 20px; font-family: Georgia, serif; }
.stat-green .stat-icon, .stat-green .stat-value { color: var(--green); }
.stat-red .stat-icon, .stat-red .stat-value { color: var(--seal); }

/* ---------------- Tables ---------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 3px; background: var(--paper-2); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead tr { background: var(--ink); color: #e8e6df; text-align: left; }
th { padding: 12px 16px; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; font-weight: 600; white-space: nowrap; }
td { padding: 12px 16px; border-top: 1px solid var(--line); vertical-align: top; }
tbody tr:nth-child(even) { background: #faf9f6; }
.mono { font-family: "Courier New", monospace; font-size: 12.5px; }
.truncate { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pill { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.pill-buy { background: var(--green-bg); color: var(--green); }
.pill-sell { background: var(--red-bg); color: var(--seal); }

/* ---------------- Empty state ---------------- */
.empty {
    border: 1px dashed var(--line);
    border-radius: 3px;
    background: var(--paper-2);
    padding: 60px 20px;
    text-align: center;
}
.empty .icon { font-size: 26px; color: #b9b3a2; margin-bottom: 10px; }
.empty h3 { margin: 0 0 4px; font-size: 16px; }
.empty p { color: var(--muted); font-size: 13px; margin: 0; max-width: 320px; margin: 0 auto; }

/* ---------------- Tabs ---------------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.tab-link {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 18px; font-size: 14px; font-weight: 600;
    color: var(--muted); text-decoration: none;
    border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-link.active { color: var(--text); border-color: var(--seal); }

/* ---------------- Forms ---------------- */
.field { display: block; margin-bottom: 16px; }
.field .label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; color: var(--muted); margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=tel], select, textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 10px 12px;
    font-size: 14px;
    background: var(--paper-2);
    color: var(--text);
    font-family: inherit;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--seal);
    box-shadow: 0 0 0 3px rgba(178,58,46,.15);
}
input[readonly] { background: #f1efe9; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.form-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 8px; }
.form-note { font-size: 12px; color: var(--muted); margin: -6px 0 16px; }
.form-error { color: var(--seal); font-size: 13px; margin: -6px 0 16px; }

.role-toggle { display: flex; gap: 2px; background: var(--line); border-radius: 3px; padding: 3px; margin-bottom: 20px; }
.role-toggle a { flex: 1; text-align: center; padding: 9px 0; font-size: 14px; font-weight: 600; border-radius: 2px; text-decoration: none; color: var(--muted); }
.role-toggle a.active { background: var(--ink); color: var(--paper); }

/* ---------------- Modal ---------------- */
.modal-overlay {
    display: none;
    position: fixed; inset: 0; z-index: 50;
    background: rgba(15, 24, 48, .6);
    align-items: center; justify-content: center;
    padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 3px;
    width: 100%; max-width: 440px;
    max-height: 90vh; overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.modal-box.wide { max-width: 640px; }
.modal-head {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--ink); color: var(--paper);
    padding: 16px 22px;
}
.modal-head h3 { margin: 0; font-size: 18px; }
.modal-close { background: none; border: none; color: #cfd3dc; font-size: 20px; cursor: pointer; line-height: 1; }
.modal-close:hover { color: #fff; }
.modal-body { padding: 22px; }

/* ---------------- Search ---------------- */
.search-wrap { max-width: 320px; margin-bottom: 18px; }

/* ---------------- Flash ---------------- */
.flash { max-width: 1100px; margin: 16px auto 0; padding: 12px 40px; }
.flash-error { color: var(--seal); }
.flash-success { color: var(--green); }

@media (max-width: 760px) {
    .hero { grid-template-columns: 1fr; padding: 40px 20px; }
    .stamp { display: none; }
    .features { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .topbar, .page { padding-left: 20px; padding-right: 20px; }
}