:root { --primary:#2c2f80; --secondary:#a432a5; --accent:#ffc72c; --dark:#111827; --text:#253044; --muted:#667085; --line:#e6e8ee; --soft:#f6f7fb; --white:#fff; --danger:#c0392b; --radius:8px; }
* { box-sizing: border-box; }
body { margin: 0; font-family: "Tahoma", "Arial", sans-serif; background: var(--soft); color: var(--text); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
input, textarea, select, button { font: inherit; }
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.login-card { width: min(420px, calc(100% - 30px)); display: grid; gap: 14px; padding: 30px; background: var(--white); border-radius: var(--radius); box-shadow: 0 20px 50px rgba(0,0,0,.2); }
.login-card img { width: 120px; margin: 0 auto; border-radius: 50%; }
.login-card h1 { margin: 0; text-align: center; font-size: 24px; }
.login-card label, .grid-form label { display: grid; gap: 7px; font-weight: 800; }
.login-card input, .grid-form input, .grid-form textarea, .grid-form select, .portfolio-row input { width: 100%; border: 1px solid var(--line); border-radius: 5px; padding: 11px 12px; background: var(--white); }
.login-card button, .button { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 9px 16px; border: 0; border-radius: 5px; background: var(--dark); color: var(--white); cursor: pointer; font-weight: 900; }
.button.primary, .login-card button { background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.button.danger { background: var(--danger); }
.sidebar { position: fixed; inset-block: 0; right: 0; width: 260px; padding: 24px; background: var(--dark); color: rgba(255,255,255,.82); overflow-y: auto; }
.sidebar img { width: 94px; border-radius: 50%; background: var(--white); margin-bottom: 14px; }
.sidebar h1 { margin: 0 0 20px; color: var(--white); font-size: 22px; }
.sidebar a { display: block; padding: 10px 12px; border-radius: 5px; margin-bottom: 6px; }
.sidebar a:hover { background: rgba(255,255,255,.1); color: var(--accent); }
.dashboard { margin-right: 260px; padding: 28px; }
.dash-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.dash-head p { margin: 0; color: var(--secondary); font-weight: 900; }
.dash-head h2 { margin: 0; color: var(--dark); font-size: 34px; }
.panel { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 22px; box-shadow: 0 10px 28px rgba(17,24,39,.06); }
.panel h3 { margin: 0 0 18px; color: var(--dark); font-size: 24px; }
.alert { padding: 12px 15px; border-radius: 5px; font-weight: 800; }
.alert.success { background: #eaf8ef; color: #19713a; }
.alert.error { background: #fdeceb; color: #a33025; }
.stats-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.stats-row div { padding: 18px; border-radius: var(--radius); background: var(--soft); }
.stats-row strong { display: block; font-size: 34px; color: var(--primary); line-height: 1; }
.grid-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-form .wide { grid-column: 1 / -1; }
.grid-form .check { display: flex; align-items: center; gap: 10px; }
.grid-form .check input { width: auto; }
details { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
summary { cursor: pointer; padding: 14px 16px; background: var(--soft); font-weight: 900; color: var(--dark); }
details form { padding: 18px; }
.portfolio-admin { display: grid; gap: 10px; margin-bottom: 16px; }
.portfolio-row { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 10px; }
.table { display: grid; gap: 10px; margin-top: 20px; }
.table-row { display: grid; grid-template-columns: 1fr auto auto auto; align-items: center; gap: 10px; padding: 12px; background: var(--soft); border-radius: 5px; }
.table-row form { margin: 0; }
@media (max-width: 900px) {
  .sidebar { position: static; width: auto; }
  .dashboard { margin-right: 0; padding: 18px; }
  .grid-form, .stats-row, .portfolio-row, .table-row { grid-template-columns: 1fr; }
  .dash-head { align-items: flex-start; flex-direction: column; }
}