:root {
  --bg: #f4f6fb;
  --bg-accent: radial-gradient(circle at 0% 0%, #d9f2ff 0%, transparent 35%), radial-gradient(circle at 100% 100%, #ffe3d6 0%, transparent 30%), #f4f6fb;
  --card: #ffffff;
  --text: #132238;
  --muted: #5f6f84;
  --line: #dde3ec;
  --primary: #0f6fff;
  --primary-strong: #0a57cc;
  --danger: #d93025;
  --success-bg: #e8f6eb;
  --success-line: #bde4c3;
  --error-bg: #ffeded;
  --error-line: #f4bcbc;
  --radius: 14px;
  --shadow: 0 16px 40px rgba(16, 39, 77, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg-accent);
}

.container {
  width: min(1160px, calc(100% - 2.2rem));
  margin: 26px auto 46px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

.brand h1 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0.1px;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.main-nav a,
.dropdown > button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  text-decoration: none;
  padding: 10px 12px;
  font-size: 0.92rem;
  cursor: pointer;
}

.main-nav a:hover,
.dropdown > button:hover {
  border-color: #c8d5e8;
  background: #f9fbff;
}

.main-nav a.primary {
  background: linear-gradient(130deg, var(--primary), #1f8cff);
  border-color: transparent;
  color: #fff;
}

.main-nav a.primary:hover {
  background: linear-gradient(130deg, var(--primary-strong), #0f6fff);
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 8px;
  display: none;
  z-index: 40;
}

.dropdown.open .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  margin: 2px 0;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 16px;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card h2 {
  font-size: 1.35rem;
}

.card h3 {
  font-size: 1.05rem;
}

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

.flash {
  padding: 12px 14px;
  background: var(--success-bg);
  border: 1px solid var(--success-line);
  border-radius: 12px;
  margin-bottom: 14px;
}

.error {
  padding: 12px 14px;
  background: var(--error-bg);
  border: 1px solid var(--error-line);
  border-radius: 12px;
  margin-bottom: 14px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  border: 1px solid #cfd9e8;
  border-radius: 10px;
  padding: 10px 11px;
  margin-bottom: 12px;
  background: #fff;
  color: var(--text);
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid rgba(15,111,255,0.25);
  border-color: var(--primary);
}

button,
.btn {
  display: inline-block;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 10px 13px;
  text-decoration: none;
  cursor: pointer;
}

button:hover,
.btn:hover {
  background: #f8fbff;
}

button.primary,
.btn.primary {
  background: linear-gradient(130deg, var(--primary), #1f8cff);
  color: #fff;
  border-color: transparent;
}

button.primary:hover,
.btn.primary:hover {
  background: linear-gradient(130deg, var(--primary-strong), #0f6fff);
}

button.danger,
.btn.danger {
  background: #fff;
  border-color: #efc1bc;
  color: var(--danger);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

th, td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  padding: 9px 8px;
  font-size: 0.92rem;
}

th {
  color: #35516f;
  font-weight: 700;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}

.stat .k {
  color: var(--muted);
  font-size: 0.84rem;
}

.stat .v {
  margin-top: 5px;
  font-size: 1.5rem;
  font-weight: 700;
}

img.avatar {
  width: 84px;
  height: 84px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 8px 20px rgba(16,39,77,0.18);
}

@media (max-width: 920px) {
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  nav.main-nav {
    width: 100%;
  }
}