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

:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --primary: #4f6ef7;
  --primary-dark: #3a55d9;
  --danger: #e5484d;
  --text: #22293b;
  --muted: #6b7385;
  --border: #e2e6f0;
  --day-width: 160px;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 40px;
}

/* ---------- Per-child page colors ---------- */
body.child-tamara {
  --bg: #fbe9f1;
  --accent1: #d65a97;
  --accent2: #f089b6;
  --divider-strong: #d65a97;
}

body.child-pavel {
  --bg: #e4f0fb;
  --accent1: #3565c4;
  --accent2: #6fa3ea;
  --divider-strong: #3565c4;
}

body.child-vera {
  --bg: #fdf3d8;
  --accent1: #c98a1b;
  --accent2: #ecc45e;
  --divider-strong: #c98a1b;
}

body.has-child .app-header {
  background: linear-gradient(120deg, var(--accent1), var(--accent2));
}

/* ---------- Header ---------- */
.app-header {
  background: linear-gradient(120deg, #4f6ef7, #7b5cf0);
  color: #fff;
  padding: 24px 28px;
}

.app-header h1 {
  font-size: 1.7rem;
}

.subtitle {
  margin-top: 4px;
  opacity: 0.9;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.header-row h1 {
  flex: 1;
  text-align: center;
}

.back-link {
  color: #fff;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.18);
  padding: 8px 14px;
  border-radius: 10px;
  white-space: nowrap;
}

.back-link:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ---------- Switcher ---------- */
.switcher {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

.switcher a {
  color: var(--accent1, var(--primary));
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 999px;
  background: #fff;
  font-weight: 600;
  transition: background 0.2s;
}

.switcher a:hover {
  background: rgba(255, 255, 255, 0.75);
}

.switcher a.active {
  background: var(--accent1, var(--primary));
  color: #fff;
  font-weight: 700;
}

/* ---------- Children grid (index) ---------- */
.children-grid {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.child-card {
  background: var(--card);
  border-radius: 18px;
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 6px 20px rgba(40, 50, 90, 0.08);
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
}

.child-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(40, 50, 90, 0.15);
}

.child-card h2 {
  margin: 14px 0 6px;
}

.child-card p {
  color: var(--muted);
  font-size: 0.92rem;
}

.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.avatar-1 { background: #ffe3ec; }
.avatar-2 { background: #dff1ff; }
.avatar-3 { background: #fff3d6; }

.arrow {
  position: absolute;
  top: 24px;
  right: 22px;
  color: var(--primary);
  font-size: 1.3rem;
}

/* ---------- Toolbar ---------- */
.toolbar {
  max-width: 960px;
  margin: 24px auto 0;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

.btn-danger {
  background: #fff;
  color: var(--danger);
  border: 1px solid var(--border);
}

.btn-danger:hover {
  background: #ffe9ea;
}

.save-status {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.9rem;
}

.save-status.saved {
  color: #2f9e44;
}

/* ---------- Login page ---------- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #4f6ef7, #7b5cf0);
  padding: 20px;
}

.login-box {
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 14px 40px rgba(30, 40, 90, 0.25);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.login-logo {
  font-size: 2.6rem;
}

.login-box h1 {
  font-size: 1.4rem;
  margin-top: 8px;
}

.login-subtitle {
  color: var(--muted);
  margin: 6px 0 22px;
  font-size: 0.95rem;
}

.login-box label {
  display: block;
  text-align: left;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--muted);
}

.login-box input[type="text"],
.login-box input[type="password"] {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 1rem;
  font-family: inherit;
  margin-bottom: 16px;
}

.login-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 110, 247, 0.15);
}

.login-error {
  background: #ffe9ea;
  color: var(--danger);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.btn-full {
  width: 100%;
}

.logout-link {
  margin-top: 14px;
  display: inline-block;
  font-size: 0.9rem;
}

/* ---------- Day dropdown ---------- */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 180px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 10px 26px rgba(40, 50, 90, 0.18);
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 30;
}

.dropdown-menu.open {
  display: flex;
}

.dropdown-menu button {
  background: none;
  border: none;
  text-align: left;
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
}

.dropdown-menu button:hover {
  background: #eef1fb;
  color: var(--primary);
}

/* ---------- Table ---------- */
.table-wrap {
  max-width: 960px;
  margin: 20px auto 0;
  padding: 0 20px;
  overflow-x: auto;
}

.schedule-table {
  width: 100%;
  min-width: 720px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(40, 50, 90, 0.08);
}

.schedule-table th {
  background: #eef1fb;
  color: var(--text);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 14px 16px;
  text-align: left;
  border-bottom: 2px solid var(--border);
}

.col-day { width: var(--day-width); }
.col-start { width: 110px; }
.col-end { width: 110px; }
.col-name { min-width: 160px; }
.col-actions { width: 80px; text-align: center; }

.schedule-table td {
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

/* thick divider between days */
tr.day-start td {
  border-top: 4px solid var(--divider-strong, #b9c2e8);
}

/* day cell: merged for all lessons of the day */
td.day-cell {
  background: #f8f9fe;
  font-weight: 600;
  border-right: 2px solid var(--border);
}

td.day-cell .day-name {
  color: var(--text);
}

td.day-cell .lesson-count {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--muted);
}

/* editable inputs */
input[type="time"],
input[type="text"] {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color 0.15s, background 0.15s;
}

input[type="time"]:hover,
input[type="text"]:hover {
  background: #f2f5ff;
}

input[type="time"]:focus,
input[type="text"]:focus {
  outline: none;
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 110, 247, 0.15);
}

.day-empty td {
  color: var(--muted);
  font-style: italic;
}

.add-row-btn {
  background: none;
  border: 1px dashed #c3cbe8;
  color: var(--primary);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
}

.add-row-btn:hover {
  background: #eef1fb;
}

.del-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  color: #b6bdcf;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
}

.del-btn:hover {
  color: var(--danger);
  background: #ffe9ea;
}

@media (max-width: 600px) {
  .header-row {
    justify-content: center;
  }
}