/* =========================================================
   QCore — формы, кнопки, сообщения
   ========================================================= */

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: 36px;
  padding: 8px 13px;

  border: 0;
  border-radius: var(--radius-sm);

  font: inherit;
  color: #fff;
  background: var(--primary);

  cursor: pointer;
}

.button:hover,
button:hover {
  color: #fff;
  background: var(--primary-hover);
}

.danger {
  min-height: 30px;
  padding: 6px 9px;
  background: var(--danger);
}

.linkbtn {
  min-height: auto;
  padding: 0;

  color: var(--primary);
  background: transparent;
}

.linkbtn:hover {
  color: var(--primary-hover);
  background: transparent;
}

.inline {
  display: inline;
}

.form {
  max-width: 650px;
}

.form label,
.login-card label {
  display: block;
  margin-bottom: 16px;
  font-weight: 600;
}

.form input,
.form textarea,
.form select,
.login-card input {
  display: block;

  width: 100%;
  margin-top: 6px;
  padding: 10px;

  color: var(--text);
  background: var(--surface);

  border: 1px solid #b9bdc5;
  border-radius: var(--radius-sm);
}

.form input:focus,
.form textarea:focus,
.form select:focus,
.login-card input:focus {
  border-color: var(--primary);
  outline: 2px solid rgba(36, 87, 197, 0.12);
}

.form textarea {
  min-height: 100px;
  resize: vertical;
}

.check input {
  display: inline-block;
  width: auto;
}

.warning,
.error {
  margin-bottom: 18px;
  padding: 12px;

  border-radius: var(--radius-sm);
}

.warning {
  background: #fff3cd;
}

.error {
  background: #f8d7da;
}

.login-body {
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: min(420px, calc(100% - 32px));
}


/* Вторичное действие формы: отмена / возврат */
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: 36px;
  padding: 8px 13px;

  color: var(--text);
  background: var(--surface);

  border: 1px solid var(--border);
  border-radius: var(--radius-sm);

  text-decoration: none;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  color: var(--text);
  background: #f5f6f8;
  outline: none;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}


/* Classes / students filters */
.filter-bar {
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:14px;
  margin-bottom:20px;
}

.filter-bar > label {
  min-width:190px;
  flex:1 1 220px;
}

.filter-actions {
  display:flex;
  gap:10px;
  align-items:center;
  padding-bottom:1px;
}

@media (max-width: 700px) {
  .filter-bar {
    align-items:stretch;
  }

  .filter-bar > label {
    width:100%;
    min-width:0;
  }

  .filter-actions {
    width:100%;
  }

  .filter-actions > * {
    flex:1;
  }
}