/* ============================================================
   Avenues Timetabler v5 — Shared Styles
   ============================================================ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  --navy:        #1d3557;
  --navy-mid:    #2D9BD3;
  --navy-light:  #e8f5fb;
  --gold:        #F7931E;
  --gold-light:  #fff3e0;
  --gold-pale:   #fff8f0;
  --cream:       #f4f6f8;
  --cream2:      #eef0f2;
  --white:       #ffffff;
  --border:      #e0e3e7;
  --border2:     #c8ccd2;
  --text:        #1a1c1e;
  --text2:       #555e6a;
  --text3:       #9aa2ad;
  --danger:      #E8312A;
  --danger-lt:   #fdeaea;
  --green:       #1B7B34;
  --green-lt:    #e3f5ed;
  --warn:        #d47800;
  --warn-lt:     #fff3e0;
  --info:        #2D9BD3;
  --info-lt:     #e8f5fb;
  --radius:      8px;
  --radius-lg:   14px;
  --shadow:      0 2px 10px rgba(0,0,0,0.08);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.14);
  --header-h:    72px;
}

/* ── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--cream);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}
a { text-decoration: none; color: inherit; }

/* ── HEADER ────────────────────────────────────────────────── */
#app-header {
  background: #ffffff;
  border-bottom: 4px solid transparent;
  border-image: linear-gradient(90deg,#E8312A,#F7931E,#2EA84B,#1B7B34,#8DC63F,#2D9BD3) 1;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
}
.header-inner {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: var(--header-h);
}

/* ── BRAND ──────────────────────────────────────────────────── */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  cursor: pointer;
}
/* School logo */
.brand-logo {
  height: 48px;
  width: auto;
  flex-shrink: 0;
}

/* Placeholder square until real Pattika logo is provided */
.brand-placeholder {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--navy);
  color: var(--gold);
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}
.brand-name {
  font-family: 'Poppins', sans-serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  line-height: 1.2;
}
.brand-sub {
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 2px;
}
.brand-cisce {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  font-size: 9px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-left: 6px;
  vertical-align: middle;
}

/* ── NAV ────────────────────────────────────────────────────── */
nav {
  display: flex;
  gap: 2px;
  background: rgba(0,0,0,0.04);
  padding: 4px;
  border-radius: 11px;
}
.nav-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  background: transparent;
  color: #444c58;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  text-decoration: none;
}
.nav-btn:hover { background: white; color: var(--text); box-shadow: var(--shadow); }
.nav-btn.active { background: var(--navy-mid); color: #ffffff; box-shadow: 0 2px 8px rgba(45,155,211,0.3); }
.nav-btn svg { flex-shrink: 0; }

/* ── HEADER USER MENU ──────────────────────────────────────── */
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}
.user-chip-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--cream);
  border: 1.5px solid var(--border);
  border-radius: 40px;
  padding: 4px 12px 4px 4px;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: 'Inter', sans-serif;
}
.user-chip-btn:hover,
.user-menu.open .user-chip-btn {
  border-color: var(--navy-mid);
  box-shadow: 0 0 0 3px rgba(45,155,211,0.12);
}
.user-role-pill {
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* Dropdown */
.user-menu { position: relative; flex-shrink: 0; }
.user-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 210px;
  z-index: 300;
  overflow: hidden;
}
.user-menu.open .user-dropdown { display: block; }
.user-dropdown-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--cream);
}
.user-dropdown-divider { height: 1px; background: var(--border); }
.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  border: none;
  background: transparent;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background 0.12s;
}
.user-dropdown-item:hover { background: var(--cream); }
.user-dropdown-danger { color: var(--danger); }
.user-dropdown-danger:hover { background: var(--danger-lt); }

/* ── MAIN LAYOUT ───────────────────────────────────────────── */
main {
  padding: 28px 32px;
  max-width: 1560px;
  margin: 0 auto;
}

/* ── BUTTONS ───────────────────────────────────────────────── */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  text-decoration: none;
}
.btn-ghost    { background: transparent; color: var(--text2); border: 1.5px solid var(--border2); }
.btn-ghost:hover { border-color: var(--navy-mid); color: var(--navy-mid); background: var(--navy-light); }
.btn-primary  { background: var(--navy-mid); color: #fff; font-weight: 700; }
.btn-primary:hover { background: #1e7aac; }
.btn-navy     { background: var(--navy); color: white; }
.btn-navy:hover { background: var(--navy-mid); }
.btn-gold     { background: var(--gold); color: white; font-weight: 700; }
.btn-gold:hover { filter: brightness(0.92); }
.btn-outline  { background: transparent; color: var(--navy); border: 1.5px solid var(--border2); }
.btn-outline:hover { border-color: var(--navy); background: var(--navy-light); }
.btn-danger   { background: var(--danger); color: white; }
.btn-danger:hover { filter: brightness(0.9); }
.btn-green    { background: var(--green); color: white; }
.btn-green:hover { filter: brightness(0.9); }
.btn-sm       { padding: 5px 11px; font-size: 12px; }
.btn-xs       { padding: 3px 8px; font-size: 11px; }
.btn-icon     { padding: 7px; border-radius: var(--radius); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

/* ── PAGE HEADER ───────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}
.page-sub { font-size: 13px; color: var(--text2); margin-top: 2px; }

/* ── TAB BAR (within page) ─────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 2px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}
.tab-btn {
  padding: 10px 20px;
  border: none;
  background: transparent;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--text2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
}
.tab-btn:hover { color: var(--navy-mid); }
.tab-btn.active { color: var(--navy-mid); border-bottom-color: var(--navy-mid); }

/* ── CARDS ─────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card-sm { padding: 16px; }
.card-title {
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ct-line { width: 3px; height: 18px; background: var(--gold); border-radius: 2px; flex-shrink: 0; }
.ct-action { margin-left: auto; }

/* ── GRID LAYOUTS ──────────────────────────────────────────── */
.two-col         { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.three-col       { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.sidebar-layout  { display: grid; grid-template-columns: 260px 1fr; gap: 20px; align-items: start; }

/* ── FORMS ─────────────────────────────────────────────────── */
.form-row   { display: flex; gap: 10px; margin-bottom: 10px; align-items: flex-end; }
.form-group { display: flex; flex-direction: column; gap: 5px; flex: 1; }
label.lbl   { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.07em; font-weight: 700; }
input, textarea {
  background: var(--cream);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
select {
  background: var(--cream);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 9px 28px 9px 12px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--navy); background: white; }
input::placeholder { color: var(--text3); }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.sec-lbl { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; margin-bottom: 8px; }

/* ── TABLES ────────────────────────────────────────────────── */
.data-tbl { width: 100%; border-collapse: collapse; }
.data-tbl th {
  text-align: left;
  font-size: 11px;
  color: var(--text2);
  padding: 8px 12px;
  border-bottom: 2px solid var(--border2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  background: var(--cream);
}
.data-tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
.data-tbl tr:hover td { background: var(--cream); }
.data-tbl tr:last-child td { border-bottom: none; }

/* ── BADGES & TAGS ─────────────────────────────────────────── */
.badge { padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.b-green  { background: var(--green-lt);  color: var(--green); }
.b-warn   { background: var(--warn-lt);   color: var(--warn); }
.b-red    { background: var(--danger-lt); color: var(--danger); }
.b-navy   { background: var(--navy-light);color: var(--navy); }
.b-gold   { background: var(--gold-light);color: var(--gold); }
.b-grey   { background: var(--cream2);    color: var(--text2); }

.tag {
  border: 1.5px solid var(--border2);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text2);
  background: var(--cream);
}
.tag .x { cursor: pointer; color: var(--text3); font-size: 15px; font-weight: 700; transition: color 0.1s; }
.tag .x:hover { color: var(--danger); }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

/* ── ALERT ITEMS ───────────────────────────────────────────── */
.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 6px;
  font-size: 13px;
}
.alert-error { background: var(--danger-lt); border: 1px solid #f0b3b3; color: var(--danger); }
.alert-warn  { background: var(--warn-lt);   border: 1px solid #f0d4a0; color: var(--warn); }
.alert-info  { background: var(--info-lt);   border: 1px solid #b3d8f0; color: var(--info); }
.alert-ok    { background: var(--green-lt);  border: 1px solid #a0e0c4; color: var(--green); }

/* ── STATS ROW ─────────────────────────────────────────────── */
.stat-row { display: grid; grid-template-columns: repeat(5,1fr); gap: 14px; margin-bottom: 20px; }
.stat-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-val  { font-size: 28px; font-weight: 700; font-family: 'Poppins', sans-serif; line-height: 1; }
.stat-lbl  { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; margin-top: 6px; }

/* ── DASHBOARD: HEALTH INSIGHTS ────────────────────────────── */
.health-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  border-radius: var(--radius);
  background: var(--cream);
  border: 1px solid var(--border);
}

/* ── DASHBOARD: WEEKLY SNAPSHOT ─────────────────────────────── */
.snapshot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.snapshot-cell {
  background: var(--cream);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.snapshot-val {
  font-size: 26px;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  color: var(--navy);
  line-height: 1.1;
}
.snapshot-name { font-size: 15px !important; }
.snapshot-span { grid-column: span 2; }
.snapshot-lbl {
  font-size: 11px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  margin-top: 4px;
}

/* ── SUBSTITUTION: AFFECTED PERIOD PILLS ───────────────────── */
.affected-pill {
  display: inline-block;
  background: var(--warn-lt);
  border: 1px solid #f0d4a0;
  color: var(--warn);
  border-radius: 20px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
}

/* ── MODALS ─────────────────────────────────────────────────── */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal.on { display: flex; }
.modal-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: slideUp 0.18s ease;
}
.modal-box-lg { max-width: 700px; }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.modal-title {
  font-family: 'Poppins', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--cream);
  border: none;
  border-radius: 6px;
  width: 28px; height: 28px;
  cursor: pointer;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text2);
}
.modal-close:hover { background: var(--cream2); }

/* ── SIDEBAR LIST ──────────────────────────────────────────── */
.sidebar-list { display: flex; flex-direction: column; gap: 4px; }
.sidebar-item {
  padding: 10px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  transition: all 0.12s;
  border: 1.5px solid transparent;
}
.sidebar-item:hover { background: var(--cream); color: var(--text); }
.sidebar-item.active { background: var(--navy-light); color: var(--navy); border-color: var(--navy-mid); font-weight: 700; }

/* ── PERIOD PILLS (availability selector) ──────────────────── */
.period-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.period-pill {
  padding: 5px 10px;
  border-radius: 6px;
  border: 1.5px solid #ffa726;
  background: #fff3e0;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.12s;
  color: #e65100;
  user-select: none;
}
.period-pill.selected { background: #e8f5e9; border-color: #66bb6a; color: #1b5e20; }
.period-pill:hover { border-color: #66bb6a; }

/* ── EMPTY STATE ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text3);
}
.empty-state .ei { font-size: 36px; margin-bottom: 10px; }
.empty-state p { font-size: 13px; }

/* ── LOADING SPINNER ───────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2.5px solid var(--border2);
  border-top-color: var(--navy-mid);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px;
  color: var(--text2);
  font-size: 14px;
}

/* ── TOAST ─────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--navy);
  color: white;
  padding: 12px 24px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  z-index: 1000;
  transition: transform 0.25s ease, opacity 0.25s ease;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.toast-error { background: var(--danger); }
.toast.toast-success { background: var(--green); }
.toast.toast-warn { background: var(--warn); }

/* ── PROGRESS BAR ──────────────────────────────────────────── */
.progress-bar-wrap { background: var(--cream2); border-radius: 10px; height: 8px; overflow: hidden; margin: 6px 0; }
.progress-bar { height: 100%; border-radius: 10px; transition: width 0.3s; }
.pb-complete { background: var(--green); }
.pb-partial  { background: var(--gold); }
.pb-empty    { background: var(--border2); }

/* ── UTILITIES ─────────────────────────────────────────────── */
.mt4  { margin-top: 4px; }
.mt8  { margin-top: 8px; }
.mt12 { margin-top: 12px; }
.mt16 { margin-top: 16px; }
.mt24 { margin-top: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap4  { gap: 4px; }
.gap8  { gap: 8px; }
.gap12 { gap: 12px; }
.gap16 { gap: 16px; }
.text-muted { color: var(--text2); }
.text-sm { font-size: 12px; }
.text-xs { font-size: 11px; }
.fw-700 { font-weight: 700; }
.text-navy { color: var(--navy); }
.text-gold { color: var(--gold); }
.text-danger { color: var(--danger); }
.text-green { color: var(--green); }
.w-full { width: 100%; }

/* ── LOGIN PAGE ────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy) 0%, #2d4f73 50%, var(--navy-mid) 100%);
  padding: 20px;
}
.login-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo img {
  height: 60px;
  margin-bottom: 12px;
}
.login-title {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 4px;
}
.login-sub {
  font-size: 13px;
  color: var(--text2);
  text-align: center;
  margin-bottom: 28px;
}
.login-rainbow {
  height: 3px;
  background: linear-gradient(90deg,#E8312A,#F7931E,#2EA84B,#1B7B34,#8DC63F,#2D9BD3);
  border-radius: 2px;
  margin-bottom: 24px;
}
.login-error {
  background: var(--danger-lt);
  color: var(--danger);
  border: 1px solid #f0b3b3;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 14px;
  display: none;
}
.login-error.show { display: block; }
.login-btn {
  width: 100%;
  padding: 12px;
  background: var(--navy);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.login-btn:hover { background: var(--navy-mid); }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.login-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 11px;
  color: var(--text3);
}

/* ── DASHBOARD GRID ────────────────────────────────────────── */
.dash-top { display: grid; grid-template-columns: repeat(5,1fr); gap: 14px; margin-bottom: 20px; }
.dash-body { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.dash-col-wide { grid-column: 1 / 2; }
.dash-col-right { grid-column: 2 / 3; }

/* ── TIMETABLE GRID ────────────────────────────────────────── */
.tt-wrap { overflow-x: auto; }
.tt-grid { border-collapse: collapse; min-width: 900px; width: 100%; }
.tt-grid th {
  background: var(--navy);
  color: white;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.1);
}
.tt-grid th.pd-col { background: var(--navy); }
.tt-grid td {
  border: 1px solid var(--border);
  padding: 0;
  vertical-align: middle;
  min-width: 110px;
  height: 52px;
}
.tt-grid .period-label {
  background: var(--navy);
  color: white;
  padding: 8px 10px;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}
.tt-grid .period-label .pl-name { font-size: 12px; }
.tt-grid .period-label .pl-time { font-size: 9px; opacity: 0.7; margin-top: 2px; font-family: monospace; }
.tt-cell {
  padding: 6px 8px;
  cursor: pointer;
  height: 52px;
  transition: background 0.12s;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.tt-cell:hover { filter: brightness(0.94); }
.tt-cell.empty { background: var(--cream); }
.tt-cell.special { background: var(--gold-pale); cursor: default; }
.tt-cell.break-row td { background: var(--cream2); height: 10px; }
.tc-sub { font-size: 11px; font-weight: 700; color: white; }
.tc-tch { font-size: 10px; color: rgba(255,255,255,0.85); margin-top: 1px; }
.tc-room { font-size: 9px; color: rgba(255,255,255,0.7); }

/* ── BLUEPRINT SIDEBAR PANEL ───────────────────────────────── */
.bp-subject-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.bp-subject-row:last-child { border-bottom: none; }
.bp-sub-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.bp-sub-name { flex: 1; font-size: 13px; font-weight: 500; }
.bp-sub-count { display: flex; align-items: center; gap: 4px; }
.bp-count-input { width: 48px; text-align: center; padding: 4px 6px; font-size: 13px; font-weight: 700; }

/* ── SUBSTITUTION ──────────────────────────────────────────── */
.leave-type-pill {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}
.lt-planned   { background: #e3f5ed; color: var(--green); }
.lt-unplanned { background: var(--warn-lt); color: var(--warn); }
.lt-vacancy   { background: var(--danger-lt); color: var(--danger); }

/* ── PRINT ─────────────────────────────────────────────────── */
@media print {
  #app-header, .no-print { display: none !important; }
  main { padding: 0; }
  .card { box-shadow: none; border: 1px solid #ccc; }
}