:root {
    --bg: #edf2f7;
    --bg-strong: #e2e9f0;
    --panel: rgba(255, 255, 255, 0.94);
    --panel-strong: #ffffff;
    --ink: #17202b;
    --muted: #5f6b7a;
    --accent: #0b6d8a;
    --accent-strong: #084f65;
    --success: #117a65;
    --warning: #b7791f;
    --danger: #c05621;
    --signal: #c96a2b;
    --line: rgba(23, 32, 43, 0.10);
    --shadow: 0 18px 48px rgba(31, 42, 55, 0.10);
    --radius-xl: 24px;
    --radius-md: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(11,109,138,0.10), transparent 24%),
        linear-gradient(180deg, #f7fafc 0%, var(--bg) 58%, var(--bg-strong) 100%);
}

.wrap {
    max-width: 1320px;
    margin: 0 auto;
    padding: 24px 18px 72px;
}

.shell,
.card,
.hero,
.toolbar,
.flash,
.subnav {
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
    border-radius: var(--radius-xl);
}

.shell { padding: 22px; }
.hero { padding: 30px; margin-bottom: 22px; }

.toolbar,
.subnav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
}

.toolbar {
    margin-bottom: 18px;
    background: rgba(255,255,255,0.84);
}

.subnav {
    margin-bottom: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #3f8fb1);
    position: relative;
}

.mark::after {
    content: "";
    position: absolute;
    inset: 10px;
    border: 2px solid rgba(255,255,255,0.72);
    border-radius: 8px;
}

.eyebrow {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.10em;
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 700;
}

h1, h2, h3 {
    margin: 0 0 12px;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.3rem, 6vw, 3.8rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

h2 {
    font-size: 1.55rem;
    letter-spacing: -0.03em;
}

p {
    color: var(--muted);
    line-height: 1.55;
    margin: 0;
}

.lede {
    max-width: 62ch;
    font-size: 1.04rem;
}

.topnav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.topnav a,
.btn,
button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    text-decoration: none;
    background: rgba(255,255,255,0.72);
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    transition: 120ms ease;
}

.topnav a:hover,
.btn:hover,
button:hover {
    color: var(--ink);
    border-color: rgba(23,32,43,0.16);
}

.btn-primary,
button.primary {
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
    color: #f7fbfd;
    border-color: transparent;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.cols-2 {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 18px;
}

.card { padding: 18px; }

.metric {
    font-size: 2rem;
    letter-spacing: -0.04em;
    display: block;
    margin-bottom: 6px;
    color: var(--ink);
}

.metric-label {
    font-size: 0.92rem;
    color: var(--muted);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.72);
    color: var(--muted);
}

.badge.success {
    color: var(--success);
    border-color: rgba(17,122,101,0.16);
    background: rgba(17,122,101,0.07);
}

.badge.warning {
    color: var(--warning);
    border-color: rgba(183,121,31,0.18);
    background: rgba(183,121,31,0.08);
}

.badge.danger {
    color: var(--danger);
    border-color: rgba(192,86,33,0.16);
    background: rgba(192,86,33,0.08);
}

.flash {
    padding: 14px 18px;
    margin-bottom: 18px;
}

.flash.success { border-color: rgba(11,109,138,0.18); }
.flash.error { border-color: rgba(201,106,43,0.20); }

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 700;
}

.table-actions a {
    color: var(--accent-strong);
    text-decoration: none;
    font-weight: 600;
}

form.stack {
    display: grid;
    gap: 12px;
}

.inline-form { margin: 0; }

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 0.95rem;
}

input, select, textarea {
    width: 100%;
    padding: 11px 12px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.78);
    font: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: rgba(11,109,138,0.36);
    box-shadow: 0 0 0 4px rgba(11,109,138,0.10);
}

textarea {
    min-height: 130px;
    resize: vertical;
}

.builder-shell {
    display: grid;
    grid-template-columns: 0.9fr 1.2fr 0.9fr;
    gap: 18px;
}

.builder-canvas {
    min-height: 520px;
    background:
        linear-gradient(90deg, rgba(23,32,43,0.05) 1px, transparent 1px),
        linear-gradient(rgba(23,32,43,0.05) 1px, transparent 1px),
        var(--panel-strong);
    background-size: 48px 48px, 48px 48px, auto;
    border-radius: 18px;
    padding: 14px;
    position: relative;
}

.builder-widget {
    position: absolute;
    border: 1px solid rgba(11,109,138,0.18);
    background: rgba(255,255,255,0.84);
    border-radius: 14px;
    padding: 10px;
    box-shadow: 0 8px 18px rgba(23,32,43,0.08);
    cursor: grab;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.muted { color: var(--muted); }

@media (max-width: 980px) {
    .cols-2,
    .builder-shell,
    .metrics {
        grid-template-columns: 1fr;
    }
}