:root {
  --navy: #0a2a5b;
  --navy-deep: #071c3d;
  --navy-soft: #143769;
  --gold: #c69214;
  --gold-soft: #f4e4b5;
  --ink: #1c2433;
  --muted: #5c6b7a;
  --line: #d7deea;
  --paper: #f4f7fb;
  --white: #ffffff;
  --ok: #1b7a4a;
  --ok-bg: #e8f6ee;
  --warn: #9a6b00;
  --warn-bg: #fff4d6;
  --fail: #a11d2f;
  --fail-bg: #fdecef;
  --shadow: 0 10px 30px rgba(7, 28, 61, 0.08);
  --radius: 14px;
  --font: "Source Sans 3", "Segoe UI", sans-serif;
  --display: "Fraunces", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font);
  background:
    radial-gradient(circle at top right, rgba(198, 146, 20, 0.12), transparent 28%),
    linear-gradient(180deg, #eef3f9 0%, var(--paper) 40%, #e8eef7 100%);
}

body {
  padding: 24px;
}

button,
input,
select {
  font: inherit;
}

.app {
  max-width: 1280px;
  margin: 0 auto;
}

.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--navy-deep), var(--navy) 55%, var(--navy-soft));
  color: var(--white);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

.brand-kicker {
  margin: 0;
  color: var(--gold-soft);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.brand h1 {
  margin: 2px 0 0;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.15;
}

.top-meta {
  text-align: right;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
}

.top-meta strong {
  display: block;
  color: var(--gold-soft);
  font-size: 1rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 18px 0 14px;
}

.tab,
.btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.tab {
  background: rgba(10, 42, 91, 0.08);
  color: var(--navy);
  font-weight: 650;
}

.tab.active {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 8px 18px rgba(10, 42, 91, 0.22);
}

.btn {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--line);
  font-weight: 650;
}

.btn:hover,
.tab:hover {
  transform: translateY(-1px);
}

.btn.primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy-deep);
}

.btn.ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
}

.panel {
  background: var(--white);
  border: 1px solid rgba(215, 222, 234, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfcfe, #f3f6fb);
}

.panel-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.45rem;
  color: var(--navy);
}

.panel-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 16px 20px;
}

.stat {
  padding: 14px 16px;
  border-radius: 12px;
  background: #f7f9fc;
  border: 1px solid var(--line);
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 4px;
}

.stat strong {
  font-size: 1.35rem;
  color: var(--navy);
  font-family: var(--display);
}

.eval-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 0 20px 16px;
}

.eval-chip {
  min-width: 180px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.eval-chip .label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.eval-chip strong {
  display: block;
  color: var(--navy);
  margin-bottom: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge.aplicada,
.badge.cerrado {
  background: var(--ok-bg);
  color: var(--ok);
}

.badge.pendiente,
.badge.proximo {
  background: var(--warn-bg);
  color: var(--warn);
}

.badge.planificada,
.badge.definido {
  background: #eef2f8;
  color: var(--muted);
}

.plan-resumen {
  margin-top: 6px !important;
  max-width: 52ch;
  color: var(--navy) !important;
  font-weight: 600;
}

.corte-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 16px 20px 8px;
}

.pager-label {
  padding: 14px 20px 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.corte-card {
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #fbfcfe;
  min-height: 148px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
  width: 100%;
}

.corte-card.active {
  border-color: var(--navy);
  box-shadow: 0 0 0 2px rgba(10, 42, 91, 0.18);
  background: linear-gradient(180deg, #eef4ff, #fff);
}

.page-banner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin: 4px 20px 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: #fff;
}

.page-banner strong {
  display: block;
  font-family: var(--display);
  font-size: 1.2rem;
}

.page-banner span {
  display: block;
  margin-top: 4px;
  color: var(--gold-soft);
  font-size: 0.88rem;
  line-height: 1.35;
}

.pager-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.pager-actions .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.save-status {
  margin: 8px 0 0 !important;
  color: var(--muted) !important;
  font-size: 0.86rem !important;
  font-weight: 600 !important;
}

.save-status.ok {
  color: var(--ok) !important;
}

.corte-card.estado-cerrado {
  border-color: #b7e0c8;
  background: linear-gradient(180deg, #f3fbf6, #fff);
}

.corte-card.estado-proximo {
  border-color: #efd48a;
  background: linear-gradient(180deg, #fff9e9, #fff);
  box-shadow: 0 0 0 1px rgba(198, 146, 20, 0.12);
}

.corte-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.corte-top strong {
  font-family: var(--display);
  font-size: 1.25rem;
  color: var(--navy);
}

.corte-units {
  font-size: 0.92rem;
  font-weight: 750;
  color: var(--navy);
  margin-bottom: 4px;
}

.corte-focus {
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 650;
  margin-bottom: 4px;
}

.corte-dates {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.corte-hito {
  font-size: 0.84rem;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.35;
}

.corte-peso {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.corte-items {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.35;
}

.chip-link {
  margin-top: 8px;
}

.chip-link a {
  color: var(--navy);
  font-weight: 650;
  font-size: 0.8rem;
}

.corte-cell {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 860px) {
  .corte-strip {
    grid-template-columns: 1fr 1fr;
  }
}

.table-wrap {
  overflow: auto;
  padding: 0 12px 16px;
}

table.grades {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 720px;
}

table.grades th,
table.grades td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

table.grades th {
  position: sticky;
  top: 0;
  background: #f7f9fc;
  color: var(--navy);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  z-index: 1;
}

table.grades th.sub {
  font-weight: 600;
  color: var(--muted);
}

table.grades tbody tr:hover {
  background: #f8fbff;
}

table.grades input[type="number"] {
  width: 68px;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table.grades input[type="number"]:focus {
  outline: 2px solid rgba(198, 146, 20, 0.35);
  border-color: var(--gold);
}

.nombre-cell {
  min-width: 180px;
}

.nombre-cell strong {
  display: block;
  color: var(--ink);
}

.nombre-cell span {
  color: var(--muted);
  font-size: 0.82rem;
}

.avg {
  font-weight: 750;
  color: var(--navy);
}

.avg.aprobado {
  color: var(--ok);
}

.avg.reprobado {
  color: var(--fail);
}

.empty {
  padding: 36px 20px 42px;
  text-align: center;
  color: var(--muted);
}

.empty strong {
  display: block;
  color: var(--navy);
  font-family: var(--display);
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 28, 61, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 40;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  width: min(520px, 100%);
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.modal.wide {
  width: min(820px, 100%);
}

.dropzone {
  margin: 0 20px 16px;
  border: 2px dashed rgba(10, 42, 91, 0.28);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(198, 146, 20, 0.08), transparent 60%),
    #fbfcfe;
  padding: 22px 18px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--gold);
  background: #fff9ec;
  transform: translateY(-1px);
}

.dropzone strong {
  display: block;
  color: var(--navy);
  font-family: var(--display);
  font-size: 1.15rem;
  margin-bottom: 4px;
}

.dropzone span {
  color: var(--muted);
  font-size: 0.9rem;
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.preview-table th,
.preview-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}

.preview-table th {
  background: #f7f9fc;
  color: var(--navy);
  position: sticky;
  top: 0;
}

.preview-wrap {
  max-height: 360px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.preview-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.modal header {
  padding: 16px 18px;
  background: var(--navy);
  color: white;
}

.modal header h3 {
  margin: 0;
  font-family: var(--display);
}

.modal .body {
  padding: 18px;
  display: grid;
  gap: 12px;
}

.modal label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.modal input,
.modal select {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.modal footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 0 18px 18px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--navy);
  color: white;
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: 0.2s ease;
  z-index: 50;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.gate {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

body.ready .gate {
  display: none;
}

body.booting .app,
body.locked .app {
  display: none;
}

.gate-card {
  width: min(440px, 100%);
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px 24px;
  display: grid;
  gap: 12px;
}

.gate-card img {
  width: 56px;
  height: 56px;
}

.gate-kicker {
  margin: 0;
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.gate-card h2 {
  margin: 0;
  font-family: var(--display);
  color: var(--navy);
}

.gate-card p {
  margin: 0;
  color: var(--muted);
}

.gate-card ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 8px;
  color: var(--ink);
}

.gate-card code {
  font-size: 0.86em;
}

#login-form {
  display: grid;
  gap: 12px;
}

#login-form[hidden] {
  display: none;
}

#login-form label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
  color: var(--muted);
}

#login-form input {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

#login-form .btn {
  width: 100%;
}

.login-error {
  min-height: 1.2em;
  color: var(--fail);
  font-size: 0.9rem;
}

#btn-logout {
  margin-top: 8px;
}

.footer-note {
  margin: 14px 4px 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.actions-cell {
  display: flex;
  gap: 6px;
}

.icon-btn {
  border: 1px solid var(--line);
  background: white;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--navy);
  font-size: 0.8rem;
  font-weight: 650;
}

.icon-btn.danger {
  color: var(--fail);
}

@media (max-width: 860px) {
  body {
    padding: 14px;
  }

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

  .top-meta {
    text-align: left;
  }

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

  .panel-head {
    flex-direction: column;
    align-items: start;
  }
}