:root {
  --bg: #f3f6fb;
  --bg-grad-a: #dbe9ff;
  --bg-grad-b: #fef7ea;
  --surface: #ffffff;
  --surface-2: #f9fbff;
  --text: #1a2437;
  --muted: #6f7d94;
  --line: #d9e0ee;
  --primary: #2563eb;
  --primary-2: #1d4ed8;
  --accent: #0ea5a6;
  --danger: #dc2626;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-soft: 0 14px 36px rgba(35, 59, 114, 0.1);
  --shadow-card: 0 10px 26px rgba(18, 28, 52, 0.08);
  --trans: 220ms cubic-bezier(.2, .6, .2, 1);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
  min-height: 100%;
}

body.admin-body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Sora", sans-serif;
  background: radial-gradient(circle at 2% 0%, var(--bg-grad-a) 0%, transparent 44%), radial-gradient(circle at 100% 0%, var(--bg-grad-b) 0%, transparent 38%), var(--bg);
}

.admin-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(130deg, rgba(37, 99, 235, 0.05), rgba(14, 165, 166, 0.05));
}

.admin-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  min-height: 100vh;
}

.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.76);
  border-right: 1px solid rgba(217, 224, 238, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: .82rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.34);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-text small {
  color: var(--muted);
  font-size: .75rem;
}

.sidebar-nav {
  flex: 1;
  overflow: auto;
  padding-right: .25rem;
}

.nav-group {
  margin: 1rem 0 .45rem;
  color: var(--muted);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.sidebar-nav .nav-link,
.nav-sublink {
  color: #2f3f5e;
  border-radius: 12px;
  display: block;
  text-decoration: none;
  padding: .58rem .72rem;
  margin: .16rem 0;
  transition: background-color var(--trans), color var(--trans), transform var(--trans);
}

.sidebar-nav .nav-link:hover,
.nav-sublink:hover,
.sidebar-nav .nav-link.active,
.nav-sublink.active {
  color: #0f1f3d;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.14), rgba(14, 165, 166, 0.1));
  transform: translateX(3px);
}

.nav-details {
  margin-top: .3rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(217, 224, 238, 0.75);
}

.nav-details summary {
  list-style: none;
  cursor: pointer;
  padding: .58rem .72rem;
  color: #2f3f5e;
  user-select: none;
}

.nav-details[open] {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.nav-details summary::-webkit-details-marker {
  display: none;
}

.nav-sublink {
  margin: 0;
  border-radius: 0;
  padding-left: 1rem;
  font-size: .9rem;
}

.logout-form {
  margin-top: auto;
}

.admin-main {
  padding: 1.2rem 1.6rem 1rem;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(217, 224, 238, 0.85);
  box-shadow: var(--shadow-soft);
}

.admin-topbar h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.admin-topbar p {
  margin: .18rem 0 0;
  color: var(--muted);
  font-size: .84rem;
}

.topbar-user {
  text-align: right;
}

.topbar-user span {
  display: block;
  font-weight: 600;
  font-size: .88rem;
}

.topbar-user small {
  color: var(--muted);
  font-size: .75rem;
}

.sidebar-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: .4rem .62rem;
}

.admin-content {
  padding-bottom: 1rem;
}

.admin-footer {
  display: flex;
  justify-content: flex-end;
  color: var(--muted);
  font-size: .78rem;
  padding: .75rem .15rem;
}

.card {
  border: 1px solid rgba(217, 224, 238, 0.8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  background: linear-gradient(180deg, #ffffff, #fbfcff);
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 59, 112, 0.14);
  border-color: rgba(37, 99, 235, 0.2);
}

.card-header {
  border-bottom: 1px solid rgba(217, 224, 238, 0.8);
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), rgba(14, 165, 166, 0.07));
  border-top-left-radius: var(--radius-md) !important;
  border-top-right-radius: var(--radius-md) !important;
  font-weight: 600;
}

.table {
  margin-bottom: 0;
}

.table > :not(caption) > * > * {
  border-bottom-color: rgba(217, 224, 238, 0.75);
  padding-top: .72rem;
  padding-bottom: .72rem;
}

.table thead th {
  color: #556581;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .07em;
}

.table tbody tr {
  transition: background-color var(--trans);
}

.table tbody tr:hover {
  background: rgba(37, 99, 235, 0.05);
}

.form-control,
.form-select,
.form-check-input {
  border-color: #ccd6e6;
  border-radius: 11px;
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus,
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus {
  border-color: rgba(37, 99, 235, 0.58);
  box-shadow: 0 0 0 .18rem rgba(37, 99, 235, 0.16);
}

.btn {
  border-radius: 11px;
  font-weight: 500;
  transition: transform var(--trans), box-shadow var(--trans), background-color var(--trans);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  border-color: transparent;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.28);
}

.btn-outline-secondary {
  border-color: #cad5e7;
  color: #405574;
}

.badge {
  border-radius: 999px;
  font-weight: 600;
  padding: .4em .72em;
}

.alert {
  border-radius: 12px;
  border-width: 1px;
}

.guest-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.guest-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .9rem 1.3rem;
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(217, 224, 238, 0.85);
  backdrop-filter: blur(12px);
}

.guest-brand {
  text-decoration: none;
  font-weight: 700;
  color: var(--text);
}

.guest-main {
  width: min(1200px, 92%);
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 440ms ease, transform 440ms ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 992px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: min(320px, 88vw);
    transform: translateX(-100%);
    transition: transform var(--trans);
    z-index: 30;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16);
  }

  .admin-body.sidebar-open .admin-sidebar {
    transform: translateX(0);
  }

  .admin-body.sidebar-open .admin-backdrop {
    pointer-events: auto;
    background: rgba(16, 24, 40, 0.36);
  }

  .admin-main {
    padding: .9rem .8rem;
  }

  .admin-topbar {
    padding: .8rem .85rem;
  }

  .sidebar-toggle {
    display: inline-flex;
  }

  .topbar-user {
    display: none;
  }
}