:root {
  /* Основні кольори */
  --primary-color: #1823e5;
  --primary-hover-color: #262744;
  --secondary-color: #afa871;
  --background-color: #f9f9f9;
  --text-color: #333;
  --header-text-color: #cac281;
  --button-bg-color: #007bff;
  --button-hover-bg-color: #0056b3;

  /* Шрифти */
  --font-family: Arial, sans-serif;
  --font-size-large: 2.5em;
  --font-size-medium: 1.2em;
  --font-size-small: 0.9em;
  --font-size-button: 0.85em;

  /* Відступи */
  --padding-small: 5px;
  --padding-medium: 10px;
  --padding-large: 20px;

  /* Інші параметри */
  --border-radius-small: 5px;
  --border-radius-large: 12px;
  --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* =========================
   BASE
========================= */
* { box-sizing: border-box; }

body {
  font-family: var(--font-family);
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  color: var(--text-color);
}

/* Загальний “центруючий” контейнер для сторінок */
.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--padding-large);
}

/* =========================
   HEADER / TITLES
========================= */
header {
  text-align: center;
  margin-bottom: var(--padding-large);
}

header h1 {
  font-size: var(--font-size-large);
  color: var(--header-text-color);
  margin: 0;
}

/* =========================
   CONTAINER (головна)
========================= */
.container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  max-width: 1200px;
  padding: var(--padding-large);
  margin: 0 auto;
}

/* =========================
   Плашки (класи)
========================= */
.class-link {
  background-color: #fff;
  color: var(--text-color);
  text-decoration: none;
  padding: var(--padding-medium);
  margin: var(--padding-small);
  border-radius: var(--border-radius-large);
  font-size: var(--font-size-medium);
  display: block;
  text-align: center;
  width: 300px;
  box-shadow: var(--box-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
  cursor: pointer;
}

.class-link:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  background-color: var(--primary-hover-color);
  color: #fff;
}

/* =========================
   Студентські картки
========================= */
.students-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.student-card {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  overflow: hidden;
  width: 300px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  cursor: pointer;
}

.student-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.student-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.student-card h2 {
  font-size: 24px;
  margin: 15px;
  color: #0e103b;
}

.student-card p {
  margin: 0 15px 15px;
  color: #666;
  font-size: 16px;
}

.student-card ul {
  list-style: none;
  padding: 0;
  margin: 0 15px 15px;
}

.student-card ul li { margin: 10px 0; }

.student-card ul li a {
  text-decoration: none;
  color: #3498db;
}

.student-card ul li a:hover { text-decoration: underline; }

/* =========================
   Модальне вікно
========================= */
.modal {
  font-family: var(--font-family);
  display: none;
  position: fixed;
  z-index: 999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
}

.modal-content {
  background-color: #fff;
  margin: 8vh auto;
  padding: 20px;
  border: 1px solid #888;
  width: 92%;
  max-width: 650px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.25);
  border-radius: 12px;
  position: relative;
}

.modal-content p {
  margin: 8px 0;
}

.modal-content a {
  color: #1a57d6;
}

.close {
  color: #aaa;
  position: absolute;
  right: 14px;
  top: 10px;
  font-size: 30px;
  font-weight: bold;
  user-select: none;
}

.close:hover,
.close:focus {
  color: #000;
  cursor: pointer;
}

/* =========================
   Buttons (global)
========================= */
button,
.button {
  padding: var(--padding-small) var(--padding-medium);
  font-size: var(--font-size-button);
  color: #fff;
  background-color: var(--button-bg-color);
  border: none;
  border-radius: var(--border-radius-small);
  cursor: pointer;
  margin-top: var(--padding-small);
  transition: background-color 0.3s ease, transform 0.08s ease;
}

button:hover,
.button:hover {
  background-color: var(--button-hover-bg-color);
}

button:active,
.button:active {
  transform: scale(0.98);
}

/* =========================
   JSON output (як було)
========================= */
#clearJson, #backToMain {
  margin-top: var(--padding-small);
}

#jsonOutput {
  margin-top: var(--padding-small);
  padding: var(--padding-small);
  background-color: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: var(--border-radius-small);
  font-size: var(--font-size-small);
}

/* =========================
   ФОРМА add_person.html (гарно)
========================= */
.form-container {
  width: 820px;
  max-width: 95vw;
  margin: 40px auto;
  background: #fff;
  padding: 22px;
  border-radius: 14px;
  box-shadow: var(--box-shadow);
}

.form-container h1 {
  text-align: center;
  margin: 0 0 16px;
  color: #0e103b;
}

.back-btn {
  background: #e9e9e9;
  color: #111;
  border: none;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  margin: 0 0 14px;
}

.back-btn:hover {
  background: #dcdcdc;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.form-container label {
  display: block;
  font-size: 13px;
  color: #555;
  margin: 10px 0 6px;
}

.form-container input[type="text"],
.form-container input[type="number"],
.form-container input[type="email"],
.form-container input[type="tel"],
.form-container textarea,
.form-container select {
  width: 100%;
  padding: 10px 10px;
  border: 1px solid #d0d0d0;
  border-radius: 10px;
  outline: none;
}

.form-container textarea {
  min-height: 90px;
  resize: vertical;
}

.form-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 14px;
  flex-wrap: wrap;
}

.save-btn {
  background: var(--primary-color);
}
.save-btn:hover {
  background: var(--primary-hover-color);
}

/* =========================
   Адаптивність
========================= */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
    padding: var(--padding-medium);
  }

  .class-link { width: 100%; }
  .student-card { width: 100%; }

  header h1 { font-size: var(--font-size-medium); }

  .modal-content {
    width: 92%;
    padding: var(--padding-medium);
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .class-link { font-size: var(--font-size-small); }

  .student-card h2 { font-size: 20px; }

  .student-card p { font-size: 14px; }

  button,
  .button {
    font-size: var(--font-size-small);
    padding: var(--padding-small);
  }

  .student-card img { height: 150px; }
}
.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  padding: 16px;
  overflow: hidden;
}

.modal-content {
  position: relative;
  background: #fff;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  margin-top: 16px;
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);

  /* ОСЬ ЦЕ ГОЛОВНЕ */
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.close {
  position: sticky;
  top: 0;
  float: right;
  font-size: 42px;
  line-height: 1;
  font-weight: 700;
  cursor: pointer;
  color: #999;
  background: #fff;
  z-index: 5;
}

body.modal-open {
  overflow: hidden;
}
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.45);
  padding: 16px;
  overflow: hidden;
}

.modal-content {
  position: relative;
  background: #fff;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  margin-top: 16px;
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);

  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.close {
  position: sticky;
  top: 0;
  float: right;
  font-size: 42px;
  line-height: 1;
  font-weight: 700;
  cursor: pointer;
  color: #999;
  background: #fff;
  z-index: 5;
}

body.modal-open {
  overflow: hidden;
}