:root {
  --bg: #120606;
  --bg2: #1a0707;
  --panel: #241010;
  --panel2: #2a0c0c;
  --text: #ffe8e8;
  --muted: #ffb3b3;
  --accent: #c62828;
  --accent2: #ff7a7a;
  --border: rgba(255, 122, 122, 0.16);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, sans-serif;
  background: linear-gradient(180deg, #120606 0%, #0d0303 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

a {
  color: var(--accent2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input {
  font: inherit;
}

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 20px;
  flex-shrink: 0;
}

.logo {
  margin: 0 0 20px;
  font-size: 22px;
  color: var(--text);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-btn {
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
}

.nav-btn:hover,
.nav-btn.active {
  background: var(--accent);
}

.content {
  flex: 1;
  padding: 20px;
}

.tab {
  display: none;
}

.tab.active {
  display: block;
}

.browser-frame {
  width: 100%;
  height: calc(100vh - 40px);
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #120606;
}

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

.card {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  overflow: hidden;
}

.card h3 {
  margin: 0 0 10px;
  word-break: break-word;
}

.card-link {
  display: block;
  margin-bottom: 14px;
  word-break: break-word;
  color: var(--muted);
}

.open-link {
  display: inline-block;
  padding: 10px 12px;
  background: var(--accent);
  color: white;
  border-radius: 10px;
  text-decoration: none;
}

.open-link:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

.empty {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--muted);
}

.admin-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.admin-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 18px;
}

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

.admin-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  margin-bottom: 12px;
}

.admin-input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #160808;
  color: var(--text);
}

.admin-btn {
  padding: 12px 14px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}

.admin-btn.secondary {
  background: #5a0b0b;
}

.admin-btn.danger {
  background: #7a1515;
}

.admin-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.status {
  margin-top: 12px;
  color: var(--muted);
}

@media (max-width: 1000px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .app {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
  }

  .browser-frame {
    height: 70vh;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}