:root {
    --bg: #0f172a;
    --panel: #0b1224;
    --panel-2: #0e1330;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --primary: #3b82f6;
    --primary-600: #2563eb;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --border: #1f2937;
    --radius: 10px;
    --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    color: var(--text);
    background:
        radial-gradient(1000px 500px at -10% -10%, #1f2937, transparent 60%),
        radial-gradient(800px 400px at 120% -20%, #0ea5e9, transparent 60%),
        radial-gradient(600px 300px at 30% 120%, #6d28d9, transparent 60%),
        var(--bg);
}

/* Top navigation */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: linear-gradient(180deg, rgba(13,20,40,.9), rgba(13,20,40,.75));
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
}
.brand {
    display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text);
}
.brand img { width: 28px; height: 28px; border-radius: 6px; }
.brand span { font-weight: 700; letter-spacing: .3px; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 14px; color: var(--muted); }
.nav-actions a { color: var(--text); text-decoration: none; opacity: .9; }
.nav-actions a:hover { opacity: 1; text-decoration: underline; }

/* Layout */
.page {
    padding: 28px 16px 40px;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
}
.card {
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}

h1, h2, h3 { margin: 0 0 14px; line-height: 1.25; }
h1 { font-size: clamp(22px, 3vw, 28px); }
h2 { font-size: clamp(18px, 2.5vw, 22px); color: var(--text); }
p, small { color: var(--muted); }

/* Forms */
.form { display: grid; gap: 16px; }
.form-group { display: grid; gap: 8px; }
label { font-weight: 600; color: var(--text); }
input[type="text"], input[type="password"], textarea, select {
    width: 100%;
    padding: 12px 14px;
    background: #0b1120;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59,130,246,.2); }
textarea { min-height: 180px; resize: vertical; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: linear-gradient(180deg, var(--primary), var(--primary-600));
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: transform .05s ease, opacity .2s ease;
}
.btn:hover { opacity: .95; }
.btn:active { transform: translateY(1px); }
.btn.block { width: 100%; }
.btn.secondary { background: #111827; color: var(--text); border-color: var(--border); }
.btn.danger { background: linear-gradient(180deg, #f87171, #ef4444); }

/* Alerts */
.alert {
    padding: 12px 14px; border-radius: 8px; border: 1px solid var(--border); margin: 14px 0;
}
.alert.success { background: rgba(16,185,129,.1); color: #34d399; border-color: rgba(16,185,129,.3); }
.alert.error { background: rgba(239,68,68,.1); color: #f87171; border-color: rgba(239,68,68,.3); }

/* Table */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--border); color: var(--text); }
th { text-align: left; color: var(--muted); font-weight: 600; }

/* Utility */
.row { display: grid; gap: 18px; }
@media (min-width: 900px) { .row { grid-template-columns: 1fr 1fr; } }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; }
.center { display: grid; place-items: center; min-height: calc(100vh - 64px); }

/* Quill styling */
#editor-toolbar { border: 1px solid var(--border); border-bottom: none; border-radius: 8px 8px 0 0; background: #0b1120; }
.quill-editor { border: 1px solid var(--border); border-top: none; border-radius: 0 0 8px 8px; }
.ql-editor { color: var(--text); }
.template-buttons .btn { padding: 8px 12px; }