:root {
  --background: #f3f4f6;
  --background-2: #ffffff;
  --text: #111827;
  --text-muted: #4b5563;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --card: #ffffff;
  --border: #e5e7eb;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.18), transparent 35%),
    radial-gradient(circle at bottom right, rgba(16, 185, 129, 0.12), transparent 28%),
    var(--background);
  color: var(--text);
}

body.dark {
  --background: #111827;
  --background-2: #1f2937;
  --text: #f9fafb;
  --text-muted: #cbd5e1;
  --card: #111827;
  --border: #334155;
}

* {
  box-sizing: border-box;
}

.container {
  width: min(1140px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

header h1 {
  font-size: clamp(2rem, 2.5vw, 2.8rem);
  margin: 0;
}

header p {
  margin: 0;
  color: var(--text-muted);
}

.card {
  background: var(--card);
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
  padding: 24px;
}

.hidden {
  display: none !important;
}

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

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  background: var(--background-2);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

button {
  border: none;
  border-radius: 14px;
  padding: 14px 20px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

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

button.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
}

button.secondary {
  background: var(--background-2);
  color: var(--text);
  border: 1px solid var(--border);
}

button.danger {
  background: var(--danger);
  color: white;
}

button.success {
  background: var(--success);
  color: white;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

nav button {
  flex: 1 1 auto;
  min-width: 110px;
}

.section-title {
  margin: 0 0 18px;
  font-size: 1.4rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.photo-card,
.user-card,
.log-card {
  background: var(--background-2);
  border-radius: 18px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.photo-card img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.photo-card .body,
.user-card .body,
.log-card .body {
  padding: 16px;
}

.photo-card h3,
.user-card h3,
.log-card h3 {
  margin: 0 0 8px;
}

.photo-card p,
.user-card p,
.log-card p {
  margin: 6px 0;
  color: var(--text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.badge.pending {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.badge.published {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.badge.rejected {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.notice {
  margin-top: 18px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(79, 70, 229, 0.08);
  color: var(--text);
}

.chat-window {
  display: grid;
  gap: 16px;
}

.chat-history {
  max-height: 380px;
  overflow-y: auto;
  display: grid;
  gap: 12px;
}

.chat-message {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--background-2);
}

.chat-message.mine {
  border-color: rgba(79, 70, 229, 0.22);
  background: rgba(79, 70, 229, 0.08);
}

.chat-message time {
  display: block;
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.82rem;
}

footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 860px) {
  nav {
    flex-direction: column;
  }
}