:root {
    --bg: #0a0f1a;
    --bg-soft: #111827;
    --panel: rgba(15, 23, 42, 0.84);
    --line: rgba(148, 163, 184, 0.18);
    --text: #e5eefb;
    --muted: #95a7c6;
    --accent: #38bdf8;
    --accent-2: #22c55e;
    --danger: #fb7185;
    --amber: #f59e0b;
    --shadow: 0 30px 80px rgba(2, 8, 23, 0.45);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), transparent 32%),
        radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 28%),
        linear-gradient(180deg, #08101c 0%, #0f172a 100%);
    color: var(--text);
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
.shell { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar {
    border-right: 1px solid var(--line);
    background: rgba(7, 12, 22, 0.86);
    padding: 28px 20px;
    backdrop-filter: blur(18px);
}
.brand { font-size: 24px; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 8px; }
.tagline { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.nav a {
    display: block;
    padding: 12px 14px;
    margin-bottom: 8px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: var(--text);
    background: rgba(255, 255, 255, 0.02);
}
.nav a:hover { border-color: var(--line); background: rgba(56, 189, 248, 0.07); }
.content { padding: 28px; }
.hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}
.hero h1 { margin: 0 0 8px; font-size: 32px; }
.hero p { margin: 0; color: var(--muted); max-width: 720px; }
.grid { display: grid; gap: 18px; }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.editor-layout { grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr); align-items: start; }
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 22px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}
.kpi { font-size: 30px; font-weight: 700; margin: 4px 0; }
.muted { color: var(--muted); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
.table th { color: var(--muted); font-weight: 600; }
.table.compact td, .table.compact th { padding: 10px 8px; }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; color: var(--muted); }
.field input, .field textarea, .field select {
    width: 100%;
    background: rgba(2, 6, 23, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.22);
    color: var(--text);
    border-radius: 14px;
    padding: 12px 14px;
    outline: none;
}
.field textarea { min-height: 140px; resize: vertical; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
    border: 0;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(135deg, #0ea5e9, #22c55e);
    color: #04111f;
}
.btn.secondary { background: rgba(255, 255, 255, 0.06); color: var(--text); border: 1px solid var(--line); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid rgba(56, 189, 248, 0.25); }
.btn.warn { background: linear-gradient(135deg, #38bdf8, #f59e0b); color: #08111f; }
.flash {
    padding: 14px 18px;
    border-radius: 14px;
    margin-bottom: 16px;
    border: 1px solid var(--line);
}
.flash.success { background: rgba(34, 197, 94, 0.12); }
.flash.error { background: rgba(251, 113, 133, 0.12); }
.badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}
.badge-blue { background: rgba(56, 189, 248, 0.15); color: #7dd3fc; }
.badge-green { background: rgba(34, 197, 94, 0.16); color: #86efac; }
.badge-amber { background: rgba(245, 158, 11, 0.16); color: #fcd34d; }
.badge-gray, .badge-outline { background: rgba(255, 255, 255, 0.05); color: var(--muted); }
.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
}
.login-card {
    width: min(460px, 100%);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 28px;
    box-shadow: var(--shadow);
}
.checklist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.checklist label { display: flex; gap: 10px; align-items: center; }
.preview-frame {
    width: 100%;
    min-height: 420px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(2, 6, 23, 0.7);
}
.preview-frame.tall { min-height: 720px; }
.toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.subtoolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 8px 0 12px;
}
.subbtn {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}
.subbtn:hover {
    color: var(--text);
    border-color: rgba(56, 189, 248, 0.25);
}
.preview-stack {
    position: sticky;
    top: 24px;
}
.preview-meta {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
}
.preview-meta-card {
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
}
.preview-meta-card strong {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.inline-note {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.18);
    color: var(--muted);
}
@media (max-width: 980px) {
    .shell { grid-template-columns: 1fr; }
    .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
    .grid.cols-3, .grid.cols-2, .grid.editor-layout { grid-template-columns: 1fr; }
    .preview-stack { position: static; }
}