/* QR Form Webapp - Shared Styles */

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --accent: #4361ee;
  --accent-hover: #3a56d4;
  --accent-gradient: linear-gradient(135deg, #4361ee, #7209b7);
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0b0;
  --text-muted: #6c6c80;
  --error: #ef476f;
  --success: #06d6a0;
  --warning: #ffd166;
  --gold: #ffd700;
  --silver: #c0c0c0;
  --bronze: #cd7f32;
  --border: #2a2a4a;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.container--wide {
  max-width: 900px;
}

/* Typography */
h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Card */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

/* Form Elements */
.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
}

input[type="text"].error,
input[type="email"].error,
textarea.error {
  border-color: var(--error);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.char-counter {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 0.25rem;
}

.char-counter.warning {
  color: var(--warning);
}

.char-counter.over {
  color: var(--error);
}

.field-error {
  font-size: 0.8rem;
  color: var(--error);
  margin-top: 0.25rem;
  display: none;
}

.field-error.visible {
  display: block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  width: 100%;
}

.btn--primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn--primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn--linkedin {
  background: #0077b5;
  color: #fff;
  width: 100%;
}

.btn--linkedin:hover {
  background: #005f8d;
}

.btn--secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

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

/* Banner Messages */
.banner {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  display: none;
}

.banner.visible {
  display: block;
}

.banner--error {
  background: rgba(239, 71, 111, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

.banner--success {
  background: rgba(6, 214, 160, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.banner--warning {
  background: rgba(255, 209, 102, 0.1);
  border: 1px solid var(--warning);
  color: var(--warning);
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 3rem 1rem;
  text-align: center;
}

/* Image Display */
.generated-image {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1rem 0;
}

/* Leaderboard */
.leaderboard-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.leaderboard-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.leaderboard-item:hover {
  border-color: var(--accent);
}

.leaderboard-rank {
  font-size: 1.5rem;
  font-weight: 700;
  min-width: 2.5rem;
  text-align: center;
}

.leaderboard-rank.gold { color: var(--gold); }
.leaderboard-rank.silver { color: var(--silver); }
.leaderboard-rank.bronze { color: var(--bronze); }

.leaderboard-thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
}

.leaderboard-info {
  flex: 1;
}

.leaderboard-name {
  font-weight: 600;
  font-size: 1rem;
}

.leaderboard-score {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Admin Table */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.admin-table th,
.admin-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin-table tr:hover td {
  background: rgba(67, 97, 238, 0.05);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 480px) {
  .container {
    padding: 1.5rem 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  .admin-table {
    font-size: 0.75rem;
  }

  .admin-table th,
  .admin-table td {
    padding: 0.4rem 0.5rem;
  }
}