@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,400;0,500;0,700;1,400&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --bg: #F7F4EF;
  --bg-card: #EFEBE4;
  --text: #1a1a1a;
  --text-muted: #6b6560;
  --accent: #C4491A;
  --accent-hover: #a83b14;
  --border: #d6d0c8;
  --border-hover: #C4491A;
  --badge-bg: #e8e3db;
  --badge-text: #6b6560;
  --input-bg: #ffffff;
  --input-border: #d6d0c8;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141210;
    --bg-card: #1c1a17;
    --text: #F0EDE8;
    --text-muted: #9a948c;
    --accent: #C4491A;
    --accent-hover: #d9562a;
    --border: #2e2a26;
    --border-hover: #C4491A;
    --badge-bg: #252220;
    --badge-text: #9a948c;
    --input-bg: #1c1a17;
    --input-border: #2e2a26;
  }
}

[data-theme="dark"] {
  --bg: #141210;
  --bg-card: #1c1a17;
  --text: #F0EDE8;
  --text-muted: #9a948c;
  --accent: #C4491A;
  --accent-hover: #d9562a;
  --border: #2e2a26;
  --border-hover: #C4491A;
  --badge-bg: #252220;
  --badge-text: #9a948c;
  --input-bg: #1c1a17;
  --input-border: #2e2a26;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background-color 0.3s, color 0.3s;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout */

.container {
  max-width: 620px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main {
  padding: 2rem 0 4rem;
  animation: fadeSlideUp 0.6s ease-out both;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Top bar */

.topbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0 0;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.lang-switcher a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: color 0.2s, background-color 0.2s;
}

.lang-switcher a:hover {
  color: var(--text);
}

.lang-switcher a.active {
  color: var(--text);
  background-color: var(--badge-bg);
}

.lang-switcher .sep {
  color: var(--border);
  user-select: none;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color 0.2s, background-color 0.2s;
}

.theme-toggle:hover {
  color: var(--text);
  background-color: var(--badge-bg);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }

[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
}

/* Navigation */

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 0 0;
  font-size: 0.875rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
}

/* Typography */

h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.25rem, 5vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

h1 em {
  font-style: italic;
}

h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

/* Badge */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--badge-text);
  background: var(--badge-bg);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

/* Explainer */

.explainer {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--text-muted);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin-bottom: 2.5rem;
}

.explainer a {
  font-weight: 500;
}

/* Subtitle */

.subtitle {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 540px;
}

/* City card */

.city-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  position: relative;
}

.city-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  color: var(--text);
}

.city-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.city-card-emoji {
  font-size: 1.5rem;
  line-height: 1;
}

.city-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
}

.city-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.city-card-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--badge-bg);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.city-card-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.city-card-arrow {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  transition: transform 0.25s, color 0.25s;
  font-size: 1.125rem;
}

.city-card:hover .city-card-arrow {
  transform: translateY(-50%) translateX(4px);
  color: var(--accent);
}

/* CTA */

.cta {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.cta a {
  font-weight: 500;
}

/* Footer */

.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
}

/* Nav link */

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  margin-top: 1rem;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--accent);
}

/* About page - Organizer cards */

.organizers {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.organizer-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.25s;
}

.organizer-card:hover {
  border-color: var(--border-hover);
}

.organizer-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.organizer-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.organizer-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
}

.organizer-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.organizer-card li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.2rem 0;
  padding-left: 1rem;
  position: relative;
}

.organizer-card li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--border);
}

.organizer-link {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Form styles */

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.form-group .hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 400;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(196, 73, 26, 0.1);
}

.form-group textarea {
  resize: vertical;
  line-height: 1.6;
}

/* Checkboxes */

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--input-border);
  border-radius: 4px;
  background: var(--input-bg);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.2s, background-color 0.2s;
}

.checkbox-item input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-item input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Submit button */

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.75rem;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.15s;
}

.btn-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
}

/* Thank you message */

.thank-you {
  text-align: center;
  padding: 3rem 0;
}

.thank-you h2 {
  font-family: var(--font-display);
  margin-bottom: 0.75rem;
}

.thank-you p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* About intro */

.about-intro {
  margin-bottom: 2.5rem;
}

.about-intro p {
  font-size: 1.0625rem;
  line-height: 1.7;
}

/* Back link */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  margin-top: 2rem;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--accent);
}

/* Responsive */

@media (max-width: 480px) {
  .topbar {
    padding: 1rem 0 0;
  }

  h1 {
    font-size: 2rem;
  }

  .city-card {
    padding: 1rem 1.25rem;
    padding-right: 2.5rem;
  }

  .organizer-card {
    padding: 1.25rem;
  }
}