:root {
  --ink: #f7f4ec;
  --muted: #aeb6c5;
  --paper: #08090d;
  --panel: rgba(18, 21, 29, 0.86);
  --panel-soft: rgba(247, 244, 236, 0.06);
  --line: rgba(247, 244, 236, 0.14);
  --cyan: #70f1ff;
  --lime: #d2ff6f;
  --rose: #ff6d98;
  --radius: 8px;
  font-family: "Noto Sans SC", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(180deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(135deg, #08090d, #121722 52%, #0b1013);
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

[hidden] {
  display: none !important;
}

.login-view {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 20px;
}

.login-panel {
  display: grid;
  gap: 16px;
  width: min(100%, 420px);
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 21, 29, 0.9);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.36);
}

.login-panel p,
.admin-topbar p {
  margin: 0;
  color: var(--lime);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.login-panel h1,
.admin-topbar h1,
.admin-panel h2 {
  margin: 0;
  letter-spacing: 0;
}

.login-panel label,
.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(247, 244, 236, 0.16);
  border-radius: var(--radius);
  color: var(--ink);
  background: rgba(247, 244, 236, 0.06);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input {
  min-height: 42px;
  padding: 0 12px;
}

textarea {
  min-height: 108px;
  padding: 12px;
  resize: vertical;
  line-height: 1.6;
}

input:focus,
textarea:focus {
  border-color: rgba(112, 241, 255, 0.72);
  box-shadow: 0 0 0 3px rgba(112, 241, 255, 0.12);
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 900;
}

.primary-action {
  color: #081014;
  background: var(--cyan);
}

.secondary-action {
  padding: 0 13px;
  color: var(--ink);
  background: rgba(247, 244, 236, 0.08);
  border-color: rgba(247, 244, 236, 0.14);
}

.form-message {
  min-height: 20px;
  color: var(--rose);
  font-size: 0.86rem;
}

.admin-app {
  min-height: 100svh;
  padding: 18px 18px 96px;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1280px;
  margin: 0 auto 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 9, 13, 0.72);
  backdrop-filter: blur(18px);
}

.admin-topbar h1 {
  margin-top: 6px;
  font-size: 1.6rem;
}

.topbar-actions,
.panel-heading {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}

.admin-tabs {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  position: sticky;
  top: 18px;
}

.admin-tabs button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-weight: 900;
}

.admin-tabs button.active {
  color: #071014;
  background: var(--lime);
}

.admin-content {
  min-width: 0;
}

.admin-panel {
  display: none;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.26);
}

.admin-panel.active {
  display: block;
}

.panel-heading {
  justify-content: space-between;
  margin-bottom: 18px;
}

.panel-heading h2 {
  font-size: 1.36rem;
}

.panel-heading span {
  color: var(--muted);
  font-size: 0.86rem;
}

.admin-panel h3 {
  margin: 26px 0 12px;
  font-size: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field.wide {
  grid-column: 1 / -1;
}

.card-list {
  display: grid;
  gap: 12px;
}

.admin-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(247, 244, 236, 0.13);
  border-radius: var(--radius);
  background: var(--panel-soft);
}

.card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title strong {
  color: var(--lime);
}

.danger-action {
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid rgba(255, 109, 152, 0.36);
  border-radius: var(--radius);
  color: var(--rose);
  background: rgba(255, 109, 152, 0.08);
  cursor: pointer;
  font-weight: 900;
}

.save-bar {
  position: fixed;
  left: 50%;
  bottom: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(calc(100% - 36px), 1280px);
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 9, 13, 0.82);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.save-bar span {
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 840px) {
  .admin-topbar,
  .save-bar {
    align-items: stretch;
    flex-direction: column;
  }

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

  .admin-tabs {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .admin-tabs button {
    text-align: center;
  }

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

@media (max-width: 520px) {
  .admin-app {
    padding: 10px 10px 130px;
  }

  .admin-panel,
  .login-panel {
    padding: 16px;
  }

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