/* Версия для учителя: синие тона, мягкие скругления */

.teacher-page {
  background: linear-gradient(160deg, #e8f4fc 0%, #d0e8f7 50%, #b8dcf2 100%);
  min-height: 100vh;
  color: #1a365d;
}

.teacher-header {
  background: linear-gradient(135deg, #2b6cb0 0%, #2c5282 100%);
  color: #fff;
  padding: 1.25rem 2rem;
  border-radius: 0 0 24px 24px;
  box-shadow: 0 4px 20px rgba(43, 108, 176, 0.3);
}

.teacher-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.teacher-header .logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.teacher-header a {
  color: #fff;
  opacity: 0.95;
}

.teacher-header a:hover {
  opacity: 1;
  text-decoration: underline;
}

.teacher-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.teacher-card {
  background: #fff;
  border-radius: 24px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(43, 108, 176, 0.08);
  border: 1px solid rgba(43, 108, 176, 0.1);
}

.teacher-profile {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.teacher-photo-wrap {
  width: 180px;
  height: 180px;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(145deg, #bee3f8, #90cdf4);
  flex-shrink: 0;
}

.teacher-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.teacher-info h2 {
  color: #2c5282;
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
}

.teacher-info .role {
  color: #2b6cb0;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.teacher-details {
  list-style: none;
}

.teacher-details li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(43, 108, 176, 0.1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.teacher-details li:last-child {
  border-bottom: none;
}

.teacher-login-page {
  background: linear-gradient(160deg, #e8f4fc 0%, #d0e8f7 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.teacher-login-box {
  background: #fff;
  border-radius: 24px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 32px rgba(43, 108, 176, 0.15);
  border: 1px solid rgba(43, 108, 176, 0.1);
}

.teacher-login-box h1 {
  color: #2c5282;
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
}

.teacher-login-box p {
  color: #4a5568;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.teacher-login-box label {
  display: block;
  color: #2d3748;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.teacher-login-box input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #bee3f8;
  border-radius: 12px;
  font-size: 1rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}

.teacher-login-box input:focus {
  outline: none;
  border-color: #2b6cb0;
}

.teacher-login-box button {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, #2b6cb0, #2c5282);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  transition: opacity 0.2s;
}

.teacher-login-box button:hover {
  opacity: 0.95;
}

.teacher-login-box .error {
  color: #c53030;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.teacher-login-box .back-link {
  display: inline-block;
  margin-top: 1rem;
  color: #2b6cb0;
  font-size: 0.9rem;
}

.teacher-login-box .back-link:hover {
  text-decoration: underline;
}

/* Вкладки кабинета */
.teacher-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.teacher-tab {
  padding: 0.75rem 1.25rem;
  border: none;
  background: #fff;
  color: #2b6cb0;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(43, 108, 176, 0.1);
  transition: background 0.2s, color 0.2s;
}

.teacher-tab:hover {
  background: #e6fffa;
  color: #2c5282;
}

.teacher-tab.active {
  background: linear-gradient(135deg, #2b6cb0, #2c5282);
  color: #fff;
}

.teacher-tab-panel {
  display: none;
}

.teacher-tab-panel.active {
  display: block;
}

.teacher-card-title {
  color: #2c5282;
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.teacher-card-desc {
  color: #4a5568;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.teacher-form label {
  display: block;
  color: #2d3748;
  margin-bottom: 0.35rem;
  font-weight: 500;
}

.teacher-form input,
.teacher-form textarea {
  width: 100%;
  padding: 0.65rem 1rem;
  border: 2px solid #bee3f8;
  border-radius: 12px;
  font-size: 1rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}

.teacher-form textarea {
  resize: vertical;
  min-height: 80px;
}

.teacher-form input:focus,
.teacher-form textarea:focus {
  outline: none;
  border-color: #2b6cb0;
}

.teacher-form button {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #2b6cb0, #2c5282);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.teacher-form button:hover {
  opacity: 0.95;
}

.teacher-message {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.teacher-message.error {
  color: #c53030;
}

.teacher-result-box {
  margin-top: 1rem;
  padding: 1rem;
  background: #ebf8ff;
  border-radius: 16px;
  border: 1px solid #90cdf4;
}

.teacher-result-box p {
  margin-bottom: 0.5rem;
}

.teacher-result-box a {
  color: #2b6cb0;
  word-break: break-all;
}

.teacher-btn-inline {
  padding: 0.5rem 1rem;
  background: #2b6cb0;
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 0.95rem;
  cursor: pointer;
}

.teacher-students-list,
.teacher-lessons-list {
  list-style: none;
}

.teacher-student-item,
.teacher-lesson-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(43, 108, 176, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.teacher-lesson-item {
  flex-direction: column;
  align-items: flex-start;
}

.teacher-lesson-info {
  margin-bottom: 0.35rem;
}

.teacher-lesson-actions {
  font-size: 0.9rem;
}

.teacher-student-name {
  font-weight: 600;
  color: #2c5282;
}

.teacher-student-login {
  color: #718096;
  font-size: 0.9rem;
}

.teacher-link {
  color: #2b6cb0;
  font-weight: 500;
}

.teacher-link:hover {
  text-decoration: underline;
}

.teacher-list-empty {
  color: #718096;
  font-style: italic;
  padding: 1rem 0;
}

.teacher-detail-list {
  list-style: none;
}

.teacher-detail-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(43, 108, 176, 0.1);
}

.teacher-detail-date {
  font-size: 0.85rem;
  color: #718096;
  margin-right: 0.5rem;
}

.teacher-grade-comment {
  font-size: 0.9rem;
  color: #4a5568;
}

.teacher-photo-placeholder {
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #bee3f8, #90cdf4);
  color: #2c5282;
  font-size: 4rem;
}