/* ══════════════════════════════════════════════
   AutoCam V4 — Blog Design System
   Reference: Skittles.com energy + card boldness
   Font: Space Grotesk (Google Fonts)
══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Variables ───────────────────────────────── */
:root {
  --black:   #0D0D0D;
  --white:   #FFFFFF;
  --gray-50: #F9F9F9;
  --gray-100:#F2F2F2;
  --gray-300:#D1D1D1;
  --gray-500:#888888;
  --gray-700:#444444;

  --gold:    #F5C842;
  --violet:  #7C3AED;
  --green:   #22C55E;
  --red:     #EF4444;
  --cyan:    #06B6D4;
  --orange:  #F97316;

  --radius:  12px;
  --radius-sm: 8px;
  --shadow:  0 4px 24px rgba(0,0,0,0.08);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.14);
  --transition: 0.22s ease;
}

/* ── Reset ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Navbar ──────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--black);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
}

.navbar-logo span { color: var(--gold); }

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  color: var(--gray-300);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.navbar-links a:hover { color: var(--white); background: rgba(255,255,255,0.08); }

.navbar-admin-link {
  color: var(--gold) !important;
  border: 1px solid rgba(245,200,66,0.3);
}

.navbar-admin-link:hover { background: rgba(245,200,66,0.1) !important; }

/* ── Hero ────────────────────────────────────── */
.hero {
  background: var(--black);
  padding: 80px 24px 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(245,200,66,0.12), transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  padding: 4px 12px;
  border: 1px solid rgba(245,200,66,0.3);
  border-radius: 20px;
}

.hero h1 {
  font-size: clamp(2.8rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 24px;
}

.hero h1 .gradient-word {
  background: linear-gradient(135deg, var(--gold) 0%, var(--orange) 50%, var(--red) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease-in-out infinite alternate;
}

@keyframes gradient-shift {
  0%   { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(30deg); }
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Section ─────────────────────────────────── */
.section {
  padding: 72px 24px;
  max-width: 1240px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--gray-500);
  font-size: 0.95rem;
  margin-bottom: 48px;
}

/* ── Post Grid ───────────────────────────────── */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 1024px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 580px) {
  .post-grid { grid-template-columns: 1fr; }
}

/* ── Post Card ───────────────────────────────── */
.post-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--gray-300);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;

  /* scroll-reveal start state */
  opacity: 0;
  transform: translateY(28px);
}

.post-card.revealed {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease,
              box-shadow var(--transition);
}

.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.post-card-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--gray-100);
}

.post-card-cover-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: var(--black);
  color: var(--gold);
}

.post-card-body {
  padding: 20px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.post-author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--black);
  flex-shrink: 0;
}

.post-card-author {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.post-card-date {
  font-size: 0.75rem;
  color: var(--gray-500);
  white-space: nowrap;
}

.post-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin-bottom: 10px;
  color: var(--black);
  flex: 1;

  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-excerpt {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
  margin-bottom: 18px;

  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-link {
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
  transition: gap var(--transition);
}

.post-card:hover .post-card-link { gap: 8px; }

/* ── Skeleton Loader ─────────────────────────── */
.skeleton {
  background: var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.6) 50%, transparent 100%);
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skeleton-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--gray-100);
}

.skeleton-line {
  height: 14px;
  border-radius: 4px;
  background: var(--gray-100);
  margin: 12px 20px 0;
}

.skeleton-line.short { width: 60%; }
.skeleton-line.long  { width: 90%; }

/* ── Empty & Error States ────────────────────── */
.state-empty, .state-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
  color: var(--gray-500);
}

.state-empty h3, .state-error h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--black);
}

/* ── Single Post Page ────────────────────────── */
.post-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 36px;
  transition: color var(--transition);
}

.post-back:hover { color: var(--black); }

.post-cover-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 36px;
  background: var(--gray-100);
}

.post-date {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 14px;
}

.post-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--black);
  margin-bottom: 32px;
}

.post-body {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--black);
}

.post-body p { margin-bottom: 1.4em; }
.post-body strong { font-weight: 700; }
.post-body h2, .post-body h3 { margin: 1.6em 0 0.6em; font-weight: 700; letter-spacing: -0.02em; }
.post-body ul, .post-body ol { padding-left: 1.4em; margin-bottom: 1.4em; }
.post-body li { margin-bottom: 0.4em; }

.post-byline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.post-author-role { color: var(--gray-500); }

.post-figure {
  margin: 28px 0;
}

.post-figure figcaption {
  font-size: 0.8rem;
  color: var(--gray-500);
  text-align: center;
  margin-top: 10px;
  font-style: italic;
}

.post-404 {
  text-align: center;
  padding: 80px 24px;
}

.post-404 h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.post-404 p { color: var(--gray-500); margin-bottom: 24px; }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  font-family: inherit;
  cursor: pointer;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--black);
  color: var(--white);
  border: 2px solid transparent;
}

.btn-primary:hover { background: var(--gray-700); }

.btn-gold {
  background: var(--gold);
  color: var(--black);
  border: 2px solid transparent;
}

.btn-gold:hover { background: #e8b93a; box-shadow: 0 4px 20px rgba(245,200,66,0.4); }

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 2px solid var(--gray-300);
}

.btn-outline:hover { border-color: var(--black); }

.btn-danger {
  background: transparent;
  color: var(--red);
  border: 2px solid rgba(239,68,68,0.3);
}

.btn-danger:hover { background: rgba(239,68,68,0.08); border-color: var(--red); }

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* ── Status Badge ────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-published {
  background: rgba(34,197,94,0.12);
  color: var(--green);
}

.badge-draft {
  background: rgba(245,200,66,0.14);
  color: #b8911a;
}

/* ── Admin Layout ────────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100dvh;
}

.admin-sidebar {
  background: var(--black);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100dvh;
  overflow-y: auto;
}

.admin-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 28px;
  letter-spacing: -0.03em;
}

.admin-logo span { color: var(--gold); }

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-500);
  transition: background var(--transition), color var(--transition);
}

.admin-nav-item:hover, .admin-nav-item.active {
  background: rgba(255,255,255,0.06);
  color: var(--white);
}

.admin-nav-item.active { color: var(--gold); }

.admin-signout {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-500);
  transition: color var(--transition);
  cursor: pointer;
}

.admin-signout:hover { color: var(--red); }

.admin-user-email {
  font-size: 0.75rem;
  color: var(--gray-700);
  padding: 8px 14px;
  word-break: break-all;
}

.admin-main {
  padding: 36px 40px;
  background: var(--gray-50);
  overflow-y: auto;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.admin-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* ── Admin Table ─────────────────────────────── */
.admin-table-wrap {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th {
  text-align: left;
  padding: 14px 18px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-100);
}

.admin-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

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

.admin-table-title {
  font-weight: 600;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-table-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.admin-empty {
  text-align: center;
  padding: 48px;
  color: var(--gray-500);
}

/* ── Admin Editor Panel ──────────────────────── */
.editor-panel {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
  margin-bottom: 28px;
  display: none;
}

.editor-panel.open { display: block; }

.editor-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.editor-panel-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.editor-field-full { grid-column: 1 / -1; }

.editor-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.editor-input, .editor-select, .editor-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--gray-100);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  background: var(--white);
  color: var(--black);
  transition: border-color var(--transition);
  outline: none;
}

.editor-input:focus, .editor-select:focus, .editor-textarea:focus {
  border-color: var(--black);
}

.editor-textarea {
  resize: vertical;
  min-height: 200px;
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
}

.editor-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-100);
}

.editor-error {
  grid-column: 1 / -1;
  font-size: 0.85rem;
  color: var(--red);
  padding: 10px 14px;
  background: rgba(239,68,68,0.06);
  border-radius: var(--radius-sm);
  display: none;
}

.editor-error.show { display: block; }

/* ── Admin Login / Auth Pages ────────────────── */
.auth-page {
  min-height: 100dvh;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: #151515;
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 400px;
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}

.auth-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  text-align: center;
}

.auth-logo span { color: var(--gold); }

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 0.88rem;
  color: var(--gray-500);
  margin-bottom: 28px;
}

.auth-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.auth-input {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
  margin-bottom: 18px;
}

.auth-input:focus { border-color: var(--gold); }
.auth-input::placeholder { color: var(--gray-700); }

.auth-btn {
  width: 100%;
  padding: 13px;
  background: var(--gold);
  color: var(--black);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  margin-top: 6px;
}

.auth-btn:hover   { background: #e8b93a; box-shadow: 0 4px 20px rgba(245,200,66,0.4); }
.auth-btn:active  { transform: scale(0.98); }
.auth-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.auth-error {
  font-size: 0.85rem;
  color: var(--red);
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  display: none;
}

.auth-error.show { display: block; }

.auth-hint {
  font-size: 0.78rem;
  color: var(--gray-700);
  text-align: center;
  margin-top: 20px;
}

/* ── Responsive — Admin ──────────────────────── */
@media (max-width: 900px) {
  .admin-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .admin-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
    height: auto;
    position: static;
    padding: 16px 20px;
    gap: 8px;
    align-items: center;
  }

  .admin-logo { margin-bottom: 0; }
  .admin-user-email { display: none; }
  .admin-signout { margin-top: 0; }

  .admin-main { padding: 24px 20px; }
  .editor-grid { grid-template-columns: 1fr; }
  .editor-field-full { grid-column: 1; }
}

/* ── Footer ──────────────────────────────────── */
.footer {
  background: var(--black);
  padding: 32px 24px;
  text-align: center;
  color: var(--gray-700);
  font-size: 0.8rem;
}

.footer a { color: var(--gray-500); margin: 0 8px; }
.footer a:hover { color: var(--white); }

/* ── Utility ─────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}