/* ============================================
   Admin Panel Styles
   ============================================ */

:root {
  --bg: #0b0f19;
  --card: rgba(17, 24, 39, 0.7);
  --green: #00ff88;
  --green-b: #0bc965;
  --text: #fff;
  --muted: #9ca3af;
  --border: rgba(255, 255, 255, 0.08);
  --danger: #f87171;
  --font: "Manrope", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  background: linear-gradient(160deg, #0b0f19, #111827);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Login */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.login-card {
  width: min(420px, 100%);
  padding: 2.5rem 2rem;
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 0 50px rgba(11, 201, 101, 0.1), 0 25px 50px rgba(0, 0, 0, 0.4);
}

.login-card h1 {
  font-size: 1.5rem;
  margin: 1.25rem 0 0.35rem;
}

.login-card .sub {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 1.75rem;
}

.login-card .brand {
  display: flex;
  justify-content: center;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.form-group input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(11, 15, 25, 0.7);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: 0.25s;
}

.form-group input:focus {
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.12);
}

.btn-login {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.95rem;
  border: none;
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: linear-gradient(135deg, #0bc965, #059347);
  color: #04140c;
  transition: 0.3s;
}

.btn-login:hover {
  box-shadow: 0 0 28px rgba(0, 255, 136, 0.35);
  transform: translateY(-1px);
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.alert-error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: var(--danger);
}

.back-link {
  display: block;
  text-align: center;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.back-link:hover {
  color: var(--green);
}

/* Dashboard shell */
.admin-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: rgba(8, 11, 18, 0.95);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
}

.admin-sidebar .brand {
  padding: 0.5rem 0.75rem 1.5rem;
}

.admin-nav a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 0.9rem;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.35rem;
  transition: 0.25s;
}

.admin-nav a:hover,
.admin-nav a.active {
  background: rgba(11, 201, 101, 0.12);
  color: var(--green);
}

.admin-sidebar .logout {
  margin-top: auto;
}

.admin-main {
  padding: 2rem;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-header h1 {
  font-size: 1.6rem;
}

.admin-header p {
  color: var(--muted);
  font-size: 0.92rem;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-box {
  padding: 1.35rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(16px);
}

.stat-box span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

.stat-box strong {
  font-size: 1.8rem;
  color: var(--green);
}

.table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
}

.table-wrap th,
.table-wrap td {
  padding: 1rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: top;
}

.table-wrap th {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(0, 0, 0, 0.2);
}

.table-wrap tr:last-child td {
  border-bottom: none;
}

.table-wrap td.message-cell {
  max-width: 320px;
  color: var(--muted);
  word-break: break-word;
}

.btn-delete {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  border: 1px solid rgba(248, 113, 113, 0.35);
  background: rgba(248, 113, 113, 0.1);
  color: var(--danger);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.25s;
}

.btn-delete:hover {
  background: rgba(248, 113, 113, 0.2);
  box-shadow: 0 0 16px rgba(248, 113, 113, 0.2);
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--muted);
}

.flash {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.flash-success {
  background: rgba(11, 201, 101, 0.12);
  border: 1px solid rgba(0, 255, 136, 0.3);
  color: var(--green);
}

@media (max-width: 900px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    overflow-x: auto;
  }

  .admin-sidebar .brand {
    padding: 0;
  }

  .admin-nav {
    display: flex;
    gap: 0.35rem;
  }

  .admin-sidebar .logout {
    margin-top: 0;
    margin-left: auto;
  }

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

  .table-wrap {
    overflow-x: auto;
  }

  .admin-main {
    padding: 1.25rem;
  }
}