/* ==========================================================================
   StilRU (Стиль РУ) - Admin Panel Stylesheet (admin.css)
   Milestone 4: Dark Obsidian & Electric Cyan Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. FONTS & TYPOGRAPHY (@font-face)
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Unbounded";
  src: url("/assets/fonts/unbounded-700.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Manrope";
  src: url("/assets/fonts/manrope-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Manrope";
  src: url("/assets/fonts/manrope-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. DESIGN TOKENS & RESET
   -------------------------------------------------------------------------- */
:root {
  --bg-obsidian: #0A0D14;
  --bg-surface: #121722;
  --bg-surface-hover: #1A2232;
  --bg-card: #141C2B;
  
  --accent-cyan: #00E5FF;
  --accent-cyan-dark: #00B4D8;
  --accent-cyan-glow: rgba(0, 229, 255, 0.25);
  --accent-cyan-subtle: rgba(0, 229, 255, 0.08);

  --text-main: #F0F6FC;
  --text-muted: #8B949E;
  --text-dim: #484F58;

  --line-subtle: rgba(255, 255, 255, 0.08);
  --line-cyan: rgba(0, 229, 255, 0.2);

  --danger: #FF4D4D;
  --warning: #FFC107;
  --success: #00E5FF;

  --font-display: "Unbounded", "Manrope", system-ui, sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;

  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background-color: var(--bg-obsidian);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. HEADER
   -------------------------------------------------------------------------- */
.admin-header {
  position: sticky;
  z-index: 100;
  top: 0;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-inline: max(24px, calc((100vw - 1040px) / 2));
  border-bottom: 1px solid var(--line-subtle);
  background: rgba(10, 13, 20, 0.9);
  backdrop-filter: blur(12px);
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  background: var(--accent-cyan);
  color: var(--bg-obsidian);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 6px;
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.admin-brand div {
  display: grid;
  line-height: 1.2;
}

.admin-brand strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.admin-brand small {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.site-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 200ms ease;
}

.site-link span {
  color: var(--accent-cyan);
  margin-inline-start: 4px;
}

.site-link:hover {
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   4. MAIN & LOGIN VIEW
   -------------------------------------------------------------------------- */
main {
  width: min(1040px, calc(100vw - 48px));
  margin-inline: auto;
}

.login-view {
  display: grid;
  min-height: calc(100vh - 72px);
  place-items: center;
  padding-block: 48px;
}

.login-card {
  width: min(100%, 440px);
  padding: clamp(28px, 5vw, 44px);
  border: 1px solid var(--line-cyan);
  border-top: 3px solid var(--accent-cyan);
  background: var(--bg-surface);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 30px var(--accent-cyan-subtle);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-cyan);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.1;
}

.login-card > p:not(.eyebrow),
.editor-heading p {
  color: var(--text-muted);
}

code {
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  color: var(--accent-cyan);
}

.login-card form {
  margin-top: 28px;
}

/* --------------------------------------------------------------------------
   5. EDITOR VIEW & FORM CONTROLS
   -------------------------------------------------------------------------- */
.editor-view {
  padding-block: 56px 120px;
}

.editor-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 36px;
}

.editor-heading p {
  max-width: 680px;
  margin-bottom: 0;
}

.content-form {
  display: grid;
  gap: 24px;
}

fieldset {
  min-width: 0;
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line-subtle);
  background: var(--bg-surface);
  border-radius: 12px;
}

legend {
  padding-inline: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

legend span {
  color: var(--accent-cyan);
  margin-inline-end: 6px;
}

.fieldset-hint {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.sub-legend {
  margin: 24px 0 14px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--accent-cyan);
}

.fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.field {
  display: grid;
  align-content: start;
  gap: 6px;
}

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

.field label {
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
}

input[type="text"],
input[type="password"],
input[type="tel"],
input[type="email"],
input[type="url"],
textarea {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--text-main);
  background: #0D1117;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

textarea {
  min-height: 100px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--accent-cyan);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-cyan-glow);
}

input:user-invalid,
textarea:user-invalid {
  border-color: var(--danger);
  background: rgba(255, 77, 77, 0.05);
}

/* Password field with toggle */
.password-control {
  position: relative;
}

.password-control input {
  padding-right: 104px;
}

.password-control button {
  position: absolute;
  top: 4px;
  right: 4px;
  min-height: 40px;
  padding-inline: 14px;
  border: 0;
  color: var(--accent-cyan);
  background: transparent;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 6px;
}

.password-control button:hover {
  background: var(--accent-cyan-subtle);
}

/* --------------------------------------------------------------------------
   6. BUTTONS & STATUS
   -------------------------------------------------------------------------- */
.primary-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: 1px solid var(--accent-cyan);
  border-radius: 8px;
  color: var(--bg-obsidian);
  background: var(--accent-cyan);
  font-weight: 700;
  box-shadow: 0 4px 20px var(--accent-cyan-glow);
  transition: all 200ms ease;
}

.primary-button:hover {
  background: var(--accent-cyan-dark);
  border-color: var(--accent-cyan-dark);
  transform: translateY(-1px);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.secondary-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: var(--text-main);
  background: transparent;
  font-weight: 600;
  transition: all 200ms ease;
}

.secondary-button:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.status {
  min-height: 1.5em;
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color 200ms ease;
}

.status[data-kind="error"] {
  color: var(--danger);
  font-weight: 600;
}

.status[data-kind="warning"] {
  color: var(--warning);
  font-weight: 600;
}

.status[data-kind="success"] {
  color: var(--success);
}

/* Dynamic list cards (Services & Stats) */
.services-fields,
.stats-fields {
  display: grid;
  gap: 20px;
}

.service-admin-card,
.stat-admin-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line-subtle);
  background: var(--bg-card);
  border-radius: 10px;
}

.service-admin-card .card-header,
.stat-admin-card .card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-subtle);
}

.service-admin-card .card-header strong,
.stat-admin-card .card-header strong {
  color: var(--accent-cyan);
  font-family: var(--font-display);
  font-size: 0.9rem;
}

.form-grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

/* --------------------------------------------------------------------------
   7. STICKY SAVE BAR
   -------------------------------------------------------------------------- */
.save-bar {
  position: sticky;
  z-index: 50;
  bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 20px;
  border: 1px solid var(--line-cyan);
  border-radius: 12px;
  background: rgba(18, 23, 34, 0.94);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7), 0 0 20px var(--accent-cyan-subtle);
  backdrop-filter: blur(12px);
}

.save-bar .status {
  margin: 0;
}

.save-bar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   8. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .admin-header {
    padding-inline: 16px;
  }

  main {
    width: calc(100vw - 32px);
  }

  .editor-view {
    padding-block: 36px 120px;
  }

  .editor-heading,
  .save-bar {
    align-items: stretch;
    flex-direction: column;
  }

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

  .field--wide {
    grid-column: auto;
  }

  fieldset {
    padding: 20px 16px;
  }

  .save-bar-actions {
    flex-direction: column-reverse;
    width: 100%;
  }

  .save-bar-actions button {
    width: 100%;
  }
}