/* Солнечный Город — Training Platform */
:root {
  --yellow: #FFC107;
  --yellow-light: #FFF8E1;
  --dark: #333;
  --gray: #666;
  --light-gray: #f5f5f5;
  --white: #fff;
  --red: #e53935;
  --green: #43a047;
  --orange: #fb8c00;
  --blue: #1e88e5;
}

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

body {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--dark);
  background: var(--light-gray);
  line-height: 1.7;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 900px; margin: 0 auto; padding: 20px 16px; }

/* Header */
.header {
  background: var(--dark);
  color: var(--white);
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header .logo { font-size: 1.2rem; font-weight: 700; color: var(--yellow); }
.header .logo span { color: var(--white); font-weight: 400; }
.header nav { display: flex; gap: 16px; align-items: center; }
.header nav a { color: #ccc; font-size: 0.9rem; }
.header nav a:hover { color: var(--yellow); text-decoration: none; }
.header .user-badge {
  background: var(--yellow);
  color: var(--dark);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.card h2 { font-size: 1.3rem; margin-bottom: 8px; }
.card .desc { color: var(--gray); font-size: 0.9rem; margin-bottom: 16px; }

/* Course list */
.course-card {
  border-left: 4px solid var(--yellow);
  cursor: pointer;
  transition: transform 0.15s;
}
.course-card:hover { transform: translateX(4px); }
.course-card .stats { font-size: 0.85rem; color: var(--gray); }

/* Module list */
.module-item {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid #eee;
  gap: 12px;
  transition: background 0.15s;
}
.module-item:last-child { border-bottom: none; }
.module-item:hover { background: var(--yellow-light); }
.module-item .status { font-size: 1.3rem; flex-shrink: 0; }
.module-item .title { flex-grow: 1; font-weight: 500; }
.module-item .title.locked { color: #aaa; }
.module-item .score { font-size: 0.85rem; color: var(--gray); }
.module-item a { color: inherit; display: flex; align-items: center; gap: 12px; width: 100%; }
.module-item a:hover { text-decoration: none; }

/* Progress bar */
.progress-bar {
  background: #eee;
  border-radius: 8px;
  height: 8px;
  overflow: hidden;
  margin: 12px 0;
}
.progress-bar .fill {
  background: var(--yellow);
  height: 100%;
  border-radius: 8px;
  transition: width 0.5s;
}

/* Module content */
.module-content { line-height: 1.8; }
.module-content h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--yellow);
}
.module-content h3 {
  font-size: 1.1rem;
  margin: 24px 0 8px;
  color: #555;
}
.module-content p { margin-bottom: 12px; }
.module-content li { margin-bottom: 6px; margin-left: 20px; }
.module-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}
.module-content th, .module-content td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  text-align: left;
}
.module-content th { background: var(--yellow); font-weight: 600; }
.module-content tr:nth-child(even) { background: #fafafa; }

/* Special blocks */
.highlight {
  background: var(--yellow-light);
  border-left: 4px solid var(--yellow);
  padding: 12px 16px;
  margin: 16px 0;
  border-radius: 0 6px 6px 0;
}
.warning {
  background: #ffebee;
  border-left: 4px solid var(--red);
  padding: 12px 16px;
  margin: 16px 0;
  border-radius: 0 6px 6px 0;
}
.photo {
  background: var(--light-gray);
  border: 2px dashed #ccc;
  padding: 24px;
  text-align: center;
  color: #999;
  margin: 16px 0;
  border-radius: 8px;
  font-style: italic;
}

/* Task blocks */
.task-1 { background: #e8f5e9; border-left: 4px solid var(--green); padding: 16px; margin: 16px 0; border-radius: 0 6px 6px 0; }
.task-2 { background: #fff3e0; border-left: 4px solid var(--orange); padding: 16px; margin: 16px 0; border-radius: 0 6px 6px 0; }
.task-3 { background: #ffebee; border-left: 4px solid var(--red); padding: 16px; margin: 16px 0; border-radius: 0 6px 6px 0; }
.task-guess { background: #e3f2fd; border-left: 4px solid var(--blue); padding: 16px; margin: 16px 0; border-radius: 0 6px 6px 0; }
.task-1 .label, .task-2 .label, .task-3 .label, .task-guess .label {
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.15s;
}
.btn-primary { background: var(--yellow); color: var(--dark); }
.btn-primary:hover { background: #ffb300; text-decoration: none; }
.btn-danger { background: var(--red); color: var(--white); }
.btn-danger:hover { background: #c62828; }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
.form-group input, .form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--yellow);
  box-shadow: 0 0 0 3px rgba(255,193,7,0.2);
}

/* Login */
.login-container {
  max-width: 400px;
  margin: 80px auto;
  padding: 0 16px;
}
.login-container .card { text-align: center; }
.login-container h1 { color: var(--yellow); font-size: 1.6rem; margin-bottom: 4px; }
.login-container .subtitle { color: var(--gray); margin-bottom: 24px; }
.error { background: #ffebee; color: var(--red); padding: 10px; border-radius: 8px; margin-bottom: 16px; font-size: 0.9rem; }

/* Admin */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #eee; }
.admin-table th { font-weight: 600; color: var(--gray); font-size: 0.8rem; text-transform: uppercase; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 0.75rem; font-weight: 600; }
.badge-admin { background: var(--yellow); color: var(--dark); }
.badge-student { background: #e3f2fd; color: var(--blue); }
.badge-completed { background: #e8f5e9; color: var(--green); }
.badge-progress { background: var(--yellow-light); color: var(--orange); }
.badge-locked { background: #eee; color: #999; }

/* Navigation between modules */
.module-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 2px solid #eee;
}

/* Responsive */
@media (max-width: 600px) {
  .header { flex-direction: column; gap: 8px; text-align: center; }
  .card { padding: 16px; }
  .module-content h2 { font-size: 1.15rem; }
  .module-nav { flex-direction: column; gap: 12px; }
}