.professor-welcome {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 24px;
  margin-bottom: 18px;
  border: 1px solid #2a3850;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(19, 43, 62, .96), rgba(30, 18, 42, .96));
}

.professor-welcome h1 {
  margin: 7px 0 8px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
}

.professor-welcome p {
  margin: 0;
  color: #d7e4f5;
  font-size: 1.05rem;
}

.install-app {
  min-height: 58px;
  border: 0;
  border-radius: 15px;
  padding: 14px 22px;
  background: linear-gradient(90deg, #62e4ee, #b7fa67);
  color: #061018;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 900;
  cursor: pointer;
}

.professor-install-box { max-width: 320px; }
.professor-install-box p {
  margin: 8px 0 0;
  color: #cbd8e9;
  font-size: .9rem;
  line-height: 1.35;
}

.professor-install-box.is-installed {
  max-width: none;
}

.professor-install-box.is-installed .install-app {
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid #72eca8;
  background: rgba(24, 74, 51, .72);
  color: #b9ffd4;
  font-size: .85rem;
}

.professor-install-box.is-installed p { display: none; }

.professor-quick-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.professor-quick-actions button {
  min-height: 104px;
  border: 2px solid #34445f;
  border-radius: 20px;
  padding: 18px;
  background: #101a2c;
  color: #f7fbff;
  text-align: left;
  cursor: pointer;
}

.professor-quick-actions button.is-active {
  border-color: #67e7f3;
  background: linear-gradient(145deg, #16344a, #13253a);
  box-shadow: 0 0 0 4px rgba(103, 231, 243, .09);
}

.professor-quick-actions strong,
.professor-quick-actions span {
  display: block;
}

.professor-quick-actions strong {
  font-size: 1.45rem;
}

.professor-quick-actions span {
  margin-top: 7px;
  color: #c7d5e7;
  font-size: 1rem;
}

@media (max-width: 620px) {
  .professor-welcome {
    align-items: stretch;
    flex-direction: column;
    padding: 20px;
  }

  .install-app {
    width: 100%;
  }

  .professor-quick-actions {
    grid-template-columns: 1fr;
  }

  .professor-quick-actions button {
    min-height: 88px;
  }

  .admin-filters {
    display: none;
  }

  .admin-title-row h1 {
    font-size: 2.35rem;
  }

  .admin-booking {
    font-size: 1.06rem;
  }

  .admin-whatsapp,
  .admin-call,
  .admin-email,
  .admin-cancel {
    min-height: 54px;
    padding: 14px;
    font-size: 1rem;
  }
}

.admin-call {
  display: block;
  min-height: 42px;
  border-radius: 11px;
  padding: 10px 12px;
  background: #69e7f2;
  color: #061018;
  text-align: center;
  text-decoration: none;
  font-size: .82rem;
  font-weight: 900;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 4px solid #ffd36b;
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

.professor-alerts {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 20px 22px;
  border: 2px solid #ffd36b;
  border-radius: 20px;
  background: #171728;
}

.professor-alerts > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.professor-alerts h2,
.professor-alerts p { margin: 0; }
.professor-alerts p { margin-top: 5px; color: #d3deec; }
.alert-bell { font-size: 2.4rem; }

.professor-alerts button {
  min-height: 58px;
  border: 0;
  border-radius: 15px;
  padding: 14px 20px;
  background: #ffd36b;
  color: #17110a;
  font: inherit;
  font-size: 1rem;
  font-weight: 900;
  cursor: pointer;
}

.professor-alerts.is-enabled {
  border-color: #72eca8;
  background: rgba(30, 76, 55, .45);
}

.professor-alerts.is-enabled button { background: #72eca8; }
.professor-alerts.is-enabled.is-collapsed {
  justify-content: flex-end;
  padding: 0;
  border-color: transparent;
  background: transparent;
}
.professor-alerts.is-enabled.is-collapsed > div { display: none; }
.professor-alerts.is-enabled.is-collapsed button {
  min-height: 44px;
  padding: 9px 15px;
  border: 1px solid #72eca8;
  background: rgba(25, 73, 52, .82);
  color: #c5ffda;
  font-size: .88rem;
}
.student-booking-link { margin: -10px 0 25px; text-align: right; }
.student-booking-link a { color: #78eaf5; font-weight: 900; }

.site-visits {
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid #2f4661;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(13, 27, 45, .96), rgba(19, 18, 38, .96));
}
.site-visits-toggle {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  width: 100%;
  min-height: 92px;
  padding: 18px 22px;
  border: 0;
  background: transparent;
  color: #f7fbff;
  text-align: left;
  cursor: pointer;
}
.site-visits-toggle:hover { background: rgba(101, 230, 244, .055); }
.site-visits-icon { font-size: 2.25rem; }
.site-visits-heading,.site-visits-heading strong,.site-visits-heading small { display: block; }
.site-visits-heading strong { margin-top: 3px; font-size: 1.32rem; }
.site-visits-heading small { margin-top: 5px; color: #b9c8dc; font-size: .86rem; }
.site-visits-action { color: #76eaf5; font-weight: 900; white-space: nowrap; }
.site-visits-action::after { content: " ▾"; }
.site-visits-toggle[aria-expanded="true"] .site-visits-action::after { content: " ▴"; }
.site-visits-content { padding: 0 22px 22px; }
.site-visits-content[hidden] { display: none; }
.site-visits-online { display: grid; grid-template-columns: minmax(180px, .7fr) 1.3fr; gap: 18px; margin-bottom: 18px; padding: 18px; border: 1px solid rgba(183, 250, 103, .4); border-radius: 17px; background: linear-gradient(135deg, rgba(16, 64, 58, .72), rgba(8, 17, 32, .88)); }
.site-visits-online-main { display: flex; align-items: center; gap: 13px; }
.site-visits-online-main span,.site-visits-online-main strong,.site-visits-online-main small { display: block; }
.site-visits-online-main strong { margin-top: 2px; color: #b7fa67; font-size: 2.65rem; line-height: 1; }
.site-visits-online-main small { margin-top: 7px; color: #b9c8dc; }
.online-pulse { width: 15px; height: 15px; flex: 0 0 auto; border-radius: 50%; background: #b7fa67; box-shadow: 0 0 0 0 rgba(183, 250, 103, .65); animation: online-pulse 1.8s infinite; }
@keyframes online-pulse { 70% { box-shadow: 0 0 0 12px rgba(183, 250, 103, 0); } 100% { box-shadow: 0 0 0 0 rgba(183, 250, 103, 0); } }
.site-visits-online-detail h3 { margin: 0; }
.site-visits-online-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.site-visits-online-header button { min-height: 38px; padding: 8px 12px; border: 1px solid rgba(183,250,103,.55); border-radius: 10px; background: rgba(183,250,103,.12); color: #dfffc0; font: inherit; font-size: .82rem; font-weight: 900; cursor: pointer; }
.site-visits-online-header button:hover { background: rgba(183,250,103,.2); }
.site-visits-online-header button:disabled { cursor: wait; opacity: .65; }
.site-visits-online-flags { display: flex; flex-wrap: wrap; gap: 8px; margin: 9px 0 11px; }
.online-country-badge { display: inline-flex; align-items: center; gap: 5px; padding: 5px 8px; border-radius: 999px; background: rgba(255,255,255,.08); }
.site-country-flag-image { width: 24px; height: 18px; flex: 0 0 auto; border-radius: 3px; object-fit: cover; box-shadow: 0 0 0 1px rgba(255,255,255,.18); }
.online-country-name { color: #e7f1ff; font-size: .86rem; }
.site-visits-online ol { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.site-visits-online li { display: flex; justify-content: space-between; gap: 12px; padding: 9px 11px; border-radius: 10px; background: rgba(255,255,255,.045); }
.site-visits-online li strong { color: #b7fa67; }
.site-visits-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; }
.site-visits-stats article { padding: 16px; border: 1px solid #30445f; border-radius: 15px; background: rgba(7, 13, 25, .7); }
.site-visits-stats span,.site-visits-stats strong { display: block; }
.site-visits-stats span { color: #b9c8dc; font-size: .82rem; }
.site-visits-stats strong { margin-top: 4px; color: #72e9f4; font-size: 1.8rem; }
.site-visits-hours { margin-top: 18px; padding: 18px; border: 1px solid rgba(114,233,244,.28); border-radius: 17px; background: linear-gradient(145deg, rgba(15,35,56,.88), rgba(9,17,31,.92)); }
.site-visits-hours > header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.site-visits-hours h3,.site-visits-hours p { margin: 0; }
.site-visits-hours p { margin-top: 5px; color: #aebed3; font-size: .85rem; }
.site-visits-peak { min-width: 210px; padding: 10px 13px; border-radius: 12px; background: rgba(183,250,103,.1); }
.site-visits-peak span,.site-visits-peak strong { display: block; }
.site-visits-peak span { color: #b9c8dc; font-size: .78rem; }
.site-visits-peak strong { margin-top: 3px; color: #b7fa67; }
.site-visits-hours-scroll { overflow-x: auto; margin-top: 17px; padding: 4px 2px 8px; scrollbar-color: #47637f #111d2e; }
.site-visits-hours ol { display: grid; grid-template-columns: repeat(24, minmax(31px, 1fr)); gap: 5px; min-width: 820px; height: 180px; margin: 0; padding: 0; list-style: none; }
.site-visits-hour { display: grid; grid-template-rows: 25px 1fr 28px; align-items: end; min-width: 0; text-align: center; }
.site-visits-hour-count { align-self: center; color: #cbd9ea; font-size: .73rem; }
.site-visits-hour-track { position: relative; display: block; height: 116px; border-radius: 7px 7px 3px 3px; background: rgba(255,255,255,.035); overflow: hidden; }
.site-visits-hour-bar { position: absolute; right: 4px; bottom: 0; left: 4px; min-height: 2px; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, #72e9f4, #387fa4); transition: height .28s ease; }
.site-visits-hour-label { align-self: center; color: #91a7c0; font-size: .68rem; white-space: nowrap; }
.site-visits-hour.is-peak .site-visits-hour-count,.site-visits-hour.is-peak .site-visits-hour-label { color: #dfffb8; font-weight: 900; }
.site-visits-hour.is-peak .site-visits-hour-track { box-shadow: 0 0 0 2px rgba(183,250,103,.45); }
.site-visits-hour.is-peak .site-visits-hour-bar { background: linear-gradient(180deg, #d7ff86, #79d841); }
.site-visits-hours .site-visits-empty { grid-column: 1 / -1; align-self: center; padding: 18px; border-radius: 12px; background: rgba(255,255,255,.04); color: #b9c8dc; text-align: center; }
.site-visits-pages,.site-visits-countries { display: grid; grid-template-columns: minmax(180px, .65fr) 1.35fr; gap: 22px; margin-top: 18px; padding-top: 18px; border-top: 1px solid #2d3d56; }
.site-visits-pages h3,.site-visits-pages p,.site-visits-countries h3,.site-visits-countries p { margin: 0; }
.site-visits-pages p,.site-visits-countries p { margin-top: 5px; color: #aebed3; font-size: .85rem; }
.site-visits-pages ol,.site-visits-countries ol { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.site-visits-pages li,.site-visits-countries li { display: flex; justify-content: space-between; gap: 16px; padding: 10px 12px; border-radius: 11px; background: rgba(255, 255, 255, .045); color: #dbe8f7; }
.site-visits-pages li strong,.site-visits-countries li strong { color: #b7fa67; }
.site-visits-pages .site-visits-empty,.site-visits-countries .site-visits-empty { display: block; color: #b9c8dc; }
.site-country-label { display: inline-flex; align-items: center; gap: 9px; }
.site-country-flag { font-size: 1.35rem; line-height: 1; }
.site-visits-controls { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; padding: 16px; border: 1px solid rgba(255, 126, 154, .34); border-radius: 14px; background: rgba(87, 20, 42, .18); }
.site-visits-controls strong,.site-visits-controls small { display: block; }
.site-visits-controls small { margin-top: 4px; color: #c9b8c0; }
.site-visits-controls button { flex: 0 0 auto; min-height: 44px; padding: 10px 15px; border: 1px solid #ff8caf; border-radius: 11px; background: #4c182b; color: #ffdce7; font: inherit; font-weight: 900; cursor: pointer; }
.site-visits-note { margin: 15px 0 0; color: #90a3bc; font-size: .8rem; }

.visits-reset-dialog { width: min(520px, calc(100% - 28px)); padding: 0; border: 1px solid #3a4d68; border-radius: 22px; background: #0c1627; color: #f6f9ff; box-shadow: 0 28px 90px rgba(0, 0, 0, .68); }
.visits-reset-dialog::backdrop { background: rgba(2, 6, 14, .82); backdrop-filter: blur(6px); }
.visits-reset-dialog form { padding: clamp(22px, 5vw, 34px); }
.visits-reset-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 16px; border-radius: 50%; background: #502035; color: #ffafc7; font-size: 2rem; font-weight: 900; }
.visits-reset-dialog h2 { margin: 7px 0 10px; font-size: clamp(1.6rem, 5vw, 2.2rem); line-height: 1.05; }
.visits-reset-dialog p { color: #c0ccdc; line-height: 1.5; }
.visits-reset-dialog label { display: block; margin: 20px 0 7px; font-weight: 900; }
.visits-reset-dialog input { width: 100%; min-height: 52px; padding: 10px 13px; border: 2px solid #536983; border-radius: 12px; background: #111f34; color: #fff; font: inherit; }
.visits-reset-dialog input:focus { outline: 3px solid rgba(255, 196, 88, .35); border-color: #ffc458; }
.visits-reset-message { min-height: 24px; margin: 9px 0 0 !important; color: #ffb7cc !important; font-weight: 800; }
.visits-reset-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }
.visits-reset-actions button { min-height: 46px; padding: 10px 15px; border: 1px solid #45617f; border-radius: 11px; background: #172942; color: #fff; font: inherit; font-weight: 900; cursor: pointer; }
.visits-reset-actions .is-danger { border-color: #ff759d; background: #e84e7a; color: #190610; }
.visits-reset-actions button:disabled { cursor: wait; opacity: .65; }

.professor-prep {
  margin-bottom: 20px;
  padding: clamp(20px, 4vw, 30px);
  border: 2px solid #ffd36b;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(58, 43, 20, .96), rgba(24, 27, 43, .98));
  box-shadow: 0 18px 45px rgba(0, 0, 0, .22);
}
.professor-prep[hidden] { display: none; }
.professor-prep > header { display: flex; align-items: center; gap: 15px; margin-bottom: 18px; }
.professor-prep > header > span { font-size: 2.7rem; }
.professor-prep h2,.professor-prep p { margin: 0; }
.professor-prep h2 { margin-top: 4px; font-size: clamp(1.45rem, 4vw, 2.15rem); }
.professor-prep header p { margin-top: 5px; color: #e1d7c3; }
.professor-prep-list { display: grid; gap: 10px; }
.professor-prep-card { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 16px; border: 1px solid rgba(255, 211, 107, .35); border-radius: 16px; background: rgba(9, 15, 28, .72); }
.professor-prep-time strong,.professor-prep-time span,.professor-prep-detail strong,.professor-prep-detail span { display: block; }
.professor-prep-time strong { color: #ffd36b; font-size: 1.3rem; }
.professor-prep-time span,.professor-prep-detail span { margin-top: 4px; color: #cbd7e7; }
.professor-prep-detail p { margin-top: 9px; color: #a8f4c8; font-weight: 800; }

@media (max-width: 680px) {
  .professor-alerts { align-items: stretch; flex-direction: column; }
  .professor-alerts button { width: 100%; }
  .student-booking-link { text-align: center; }
  .professor-prep-card { grid-template-columns: 1fr; gap: 10px; }
  .site-visits-toggle { grid-template-columns: auto 1fr; padding: 16px; }
  .site-visits-action { grid-column: 2; }
  .site-visits-content { padding: 0 16px 18px; }
  .site-visits-stats { grid-template-columns: 1fr 1fr; }
  .site-visits-hours > header { flex-direction: column; }
  .site-visits-peak { width: 100%; min-width: 0; }
  .site-visits-online { grid-template-columns: 1fr; }
  .site-visits-online-header { align-items: stretch; flex-direction: column; }
  .site-visits-online-header button { width: 100%; }
  .site-visits-pages,.site-visits-countries { grid-template-columns: 1fr; }
  .site-visits-controls,.visits-reset-actions { align-items: stretch; flex-direction: column; }
  .site-visits-controls button,.visits-reset-actions button { width: 100%; }
}

.roster-dialog {
  width: min(1120px, calc(100% - 28px));
  max-height: 92vh;
  padding: 0;
  border: 0;
  border-radius: 24px;
  background: #f6f8fb;
  color: #172033;
  box-shadow: 0 32px 100px rgba(0, 0, 0, .65);
}
.roster-dialog::backdrop { background: rgba(3, 7, 15, .78); backdrop-filter: blur(7px); }
.roster-sheet { padding: clamp(22px, 4vw, 42px); }
.roster-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 20px; border-bottom: 3px solid #15334d; }
.roster-header span { color: #087e91; font-size: .78rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.roster-header h2 { margin: 6px 0 7px; color: #101a2b; font-size: clamp(1.7rem, 4vw, 2.7rem); line-height: 1; }
.roster-header p { margin: 0; color: #536177; }
.roster-header img { width: min(255px, 32vw); height: auto; border-radius: 12px; }
.roster-toolbar { display: flex; justify-content: flex-end; gap: 10px; margin: 20px 0; }
.roster-toolbar button { min-height: 46px; border: 1px solid #1e405f; border-radius: 12px; padding: 10px 16px; background: #15334d; color: #fff; font: inherit; font-weight: 900; cursor: pointer; }
.roster-toolbar button:last-child { background: #fff; color: #172033; }
.roster-content { overflow-x: auto; }
.roster-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.roster-table th { padding: 12px 10px; background: #15334d; color: #fff; text-align: left; }
.roster-table td { padding: 13px 10px; border-bottom: 1px solid #d4dbe5; vertical-align: top; }
.roster-table tbody tr:nth-child(even) { background: #edf2f7; }
.roster-table strong,.roster-table span,.roster-table small { display: block; }
.roster-table span,.roster-table small { margin-top: 4px; color: #56647a; }
.roster-code { color: #087e91 !important; font: 800 .76rem ui-monospace, monospace; }
.roster-empty { padding: 40px; border: 2px dashed #c7d0dc; border-radius: 16px; text-align: center; }
.roster-sheet footer { margin-top: 22px; padding-top: 14px; border-top: 1px solid #ccd5e0; color: #667287; font-size: .76rem; text-align: center; }

@media (max-width: 680px) {
  .roster-header { flex-direction: column-reverse; }
  .roster-header img { width: min(260px, 100%); }
  .roster-toolbar { flex-direction: column; }
  .roster-table { min-width: 780px; }
}

@media print {
  @page { margin: 12mm; size: landscape; }
  body > :not(.roster-dialog) { display: none !important; }
  .roster-dialog { position: static; display: block !important; width: 100%; max-height: none; margin: 0; border-radius: 0; box-shadow: none; overflow: visible; }
  .roster-dialog::backdrop,.roster-toolbar { display: none !important; }
  .roster-sheet { padding: 0; }
  .roster-header img { width: 210px; }
  .roster-content { overflow: visible; }
  .roster-table { min-width: 0; font-size: 9pt; }
  .roster-table th { background: #15334d !important; color: #fff !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .roster-table tbody tr:nth-child(even) { background: #edf2f7 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .roster-table tr { break-inside: avoid; }
}