@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;500;600;700;800&family=Sora:wght@500;600;700;800&display=swap');

:root {
  --bg: #f7f9ff;
  --surface: #ffffff;
  --surface-alt: #eef4ff;
  --border: #d7e3ff;
  --text: #1c2440;
  --text-muted: #5d6b8a;

  --primary: #ff4f9a;
  --primary-glow: rgba(255, 79, 154, 0.24);
  --secondary: #2ea8ff;
  --secondary-glow: rgba(46, 168, 255, 0.2);
  --accent: #16c79a;
  --accent-glow: rgba(22, 199, 154, 0.22);

  --success: #16c79a;
  --danger: #ff5c6c;
  --gradient-1: linear-gradient(135deg, #ff4f9a 0%, #2ea8ff 55%, #16c79a 100%);
  --gradient-2: linear-gradient(135deg, #2ea8ff, #16c79a);

  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 14px 34px rgba(28, 36, 64, 0.09);
}

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

body {
  font-family: 'Nunito Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(40% 45% at 8% 5%, rgba(46, 168, 255, 0.16), transparent 70%),
    radial-gradient(35% 40% at 92% 0%, rgba(255, 79, 154, 0.16), transparent 70%),
    radial-gradient(45% 45% at 70% 85%, rgba(22, 199, 154, 0.13), transparent 70%),
    linear-gradient(180deg, #fbfdff 0%, #f7f9ff 100%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(125, 150, 197, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 150, 197, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.45;
  z-index: -1;
  mask-image: radial-gradient(circle at center, black 45%, transparent 100%);
}

.page-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.logo {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 2.3rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: -1px;
}

.logo-emoji {
  font-size: 1.95rem;
  -webkit-text-fill-color: initial;
}

.subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 28px;
  font-weight: 600;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  backdrop-filter: blur(2px);
  animation: cardIn 0.34s ease-out;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.card h2 {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.card p {
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-size: 1rem;
}

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  margin-bottom: 7px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface-alt);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Nunito Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--secondary);
  background: var(--surface);
  box-shadow: 0 0 0 4px var(--secondary-glow);
}

.form-group textarea {
  min-height: 110px;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.72;
}

.code-input {
  font-family: 'Sora', sans-serif !important;
  font-size: 1.7rem !important;
  text-align: center;
  letter-spacing: 8px;
  text-transform: uppercase;
  padding: 16px 14px !important;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Sora', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s, border-color 0.15s;
  width: 100%;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.52; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 8px 22px var(--primary-glow);
}

.btn-primary:hover { box-shadow: 0 12px 28px var(--primary-glow); }

.btn-secondary {
  background: var(--surface);
  color: #215ca8;
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--secondary);
  box-shadow: 0 8px 20px rgba(46, 168, 255, 0.18);
}

.btn-danger {
  background: #ffe9ec;
  color: #d23a53;
  border: 2px solid #ffd0d8;
}

.btn-success {
  background: #dff9f1;
  color: #167f66;
  border: 2px solid #bff1e3;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.84rem;
}

.tabs {
  display: flex;
  gap: 6px;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
  padding: 5px;
  margin-bottom: 20px;
}

.tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.92rem;
  transition: all 0.2s;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: 'Nunito Sans', sans-serif;
}

.tab.active {
  background: var(--surface);
  color: #215ca8;
  box-shadow: 0 4px 12px rgba(33, 92, 168, 0.12);
}

.tab:hover:not(.active) { color: var(--text); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.alert {
  padding: 13px 17px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 0.9rem;
  display: none;
  animation: cardIn 0.26s ease-out;
}

.alert.show { display: block; }
.alert-error { background: #ffedf0; color: #bb2842; border: 1px solid #ffc8d2; }
.alert-success { background: #e5fbf3; color: #127d63; border: 1px solid #bbf1e2; }
.alert-info { background: #eaf5ff; color: #1b65ba; border: 1px solid #c9e4ff; }

.result-area { margin-top: 24px; }

.image-result {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  animation: cardIn 0.5s ease-out;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.image-result img {
  width: 100%;
  display: block;
  border-radius: var(--radius) var(--radius) 0 0;
}

.image-result .caption {
  padding: 16px 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
}

.spinner {
  display: none;
  text-align: center;
  padding: 40px;
}

.spinner.show { display: block; }

.spinner-ring {
  width: 52px;
  height: 52px;
  border: 4px solid #d8e5ff;
  border-top-color: var(--secondary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

.spinner-text {
  color: var(--text-muted);
  font-weight: 700;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.86rem;
  flex-wrap: wrap;
  gap: 8px;
  backdrop-filter: blur(6px);
}

.status-bar .name { color: #1f72c9; font-weight: 800; }
.status-bar .count { color: var(--text-muted); font-weight: 700; }
.status-bar .timer { color: #c74f1a; font-weight: 700; display: none; }
.status-bar .timer.show { display: inline; }

.workshop-code-display {
  font-family: 'Sora', sans-serif;
  font-size: 3rem;
  text-align: center;
  letter-spacing: 12px;
  color: #1f72c9;
  padding: 24px;
  background: #f3f8ff;
  border-radius: var(--radius-sm);
  border: 2px dashed #8bc4ff;
  margin: 16px 0;
  user-select: all;
}

.workshop-info {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer {
  margin-top: auto;
  padding-top: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.83rem;
  opacity: 0.8;
}

.cooldown-bar {
  height: 4px;
  background: #d8e6ff;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 12px;
  display: none;
}

.cooldown-bar.show { display: block; }

.cooldown-bar .fill {
  height: 100%;
  background: var(--gradient-2);
  border-radius: 2px;
  transition: width 0.5s linear;
  width: 0%;
}

.features {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.feature-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}

.feature-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.feature-text strong {
  color: var(--text);
  display: block;
  margin-bottom: 2px;
}

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

.gallery-header h3 {
  font-family: 'Sora', sans-serif;
  color: var(--text-muted);
  font-size: 1rem;
}

.feedback-card h3 {
  font-family: 'Sora', sans-serif;
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.feedback-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.feedback-actions .btn {
  width: auto;
}

.feedback-actions .btn.selected {
  border-color: var(--secondary);
  box-shadow: 0 8px 20px rgba(46, 168, 255, 0.2);
}

.feedback-saved {
  margin-top: 8px;
  color: #127d63;
  font-weight: 700;
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .page-container { padding: 16px 12px; }
  .card { padding: 20px; }
  .logo { font-size: 1.7rem; }
  .workshop-code-display { font-size: 2.2rem; letter-spacing: 8px; }
  .code-input { font-size: 1.35rem !important; letter-spacing: 6px; }
  .status-bar { font-size: 0.8rem; }
}