/* ================================================================ Tokens */

:root {
  color-scheme: dark;
  --paper: #161b1b;
  --white: #202727;
  --ink: #f0e9da;
  --muted: #b7beb0;
  --olive: #b1c18c;
  --line: #3c4742;
  --sage: #303d30;
  --rust: #efa182;
  --peach: #493029;
  --mustard: #d4b571;
  --cell: #293130;
  --control-line: #637064;
}

/* ================================================================ Base */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 'Segoe UI', Arial, sans-serif;
}

button, select, input, textarea { font: inherit; }
button, select, summary, input { cursor: pointer; }
input[type='text'], input[type='email'], input[type='password'], input:not([type]), textarea { cursor: text; }
a { color: inherit; }

button:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible,
summary:focus-visible, a:focus-visible, .table-scroll:focus-visible {
  outline: 3px solid var(--rust);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

[hidden] { display: none !important; }

/* ================================================================ Botões */

.primary, .ghost, .danger {
  border-radius: 5px;
  padding: 7px 14px;
  font-size: 14px;
  border: 1px solid var(--control-line);
}
.primary { background: var(--olive); border-color: var(--olive); color: var(--paper); font-weight: 600; }
.primary:disabled { opacity: .6; cursor: wait; }
.ghost { background: none; color: var(--ink); }
.ghost:hover { border-color: var(--olive); }
.danger { background: none; color: var(--rust); border-color: var(--rust); }

.link-button {
  background: none;
  border: 0;
  padding: 0;
  color: var(--olive);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ================================================================ Cabeçalho */

.topbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  padding: 16px 4vw;
}

.brand {
  text-decoration: none;
  display: flex;
  align-items: center;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -1px;
}
.brand-icon {
  width: 37px;
  height: 37px;
  background: var(--olive);
  color: var(--paper);
  border-radius: 9px;
  display: grid;
  place-items: center;
  margin-right: 10px;
  font-size: 28px;
}
.brand-dot { color: var(--rust); }

.edition { font: 12px/1.5 Consolas, monospace; letter-spacing: 1.3px; }
.edition span { border-left: 1px solid #48534b; margin-left: 15px; padding-left: 15px; }

.account { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.account .ghost { padding: 5px 12px; font-size: 13px; }
.account-email { font-size: 13px; color: var(--ink); max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.save-state { font-size: 13px; color: var(--muted); }
.save-state.error { color: var(--rust); }

/* ================================================================ Introdução e resumo */

main { max-width: 1700px; margin: auto; padding: 30px 4vw 0; }

.intro { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.intro p:last-child { margin: 0; color: var(--muted); }
.eyebrow { color: var(--olive); font: 12px/1.5 Consolas, monospace; letter-spacing: 2px; margin: 0 0 7px; }
h1 { font: normal 40px/1.15 Georgia, serif; letter-spacing: -1.2px; margin: 0 0 10px; }
h2 { font-size: 20px; letter-spacing: -.4px; margin: 0; }

.semester { font-size: 13px; color: var(--muted); border-left: 2px solid var(--mustard); padding-left: 16px; }
.semester strong { display: block; font: 30px Georgia, serif; color: var(--ink); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 30px;
  padding: 20px 0;
}
.stats article { padding: 0 24px; border-right: 1px solid var(--line); }
.stats article:last-child { border: 0; }
.stats span { font-size: 14px; color: var(--muted); }
.stats strong { display: block; font: 34px/1.5 Georgia, serif; color: var(--olive); }
.stats small { display: block; font-size: 12px; color: var(--muted); }

/* ================================================================ Catálogo */

.workspace { display: grid; grid-template-columns: 310px minmax(0, 1fr); gap: 28px; align-items: start; }

.panel-heading, .schedule-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.panel-heading > span { font: 12px Consolas, monospace; color: var(--muted); }
.hint { font-size: 14px; color: var(--muted); margin: 4px 0 17px; }

.period { border-bottom: 1px solid var(--line); }
.period > summary {
  padding: 16px 0;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}
.period > summary::-webkit-details-marker { display: none; }
.period > summary::after { content: '+'; font-weight: 400; font-size: 20px; }
.period[open] > summary::after { content: '−'; }
.period-count { color: var(--muted); font-size: 12px; font-weight: 400; margin-left: auto; margin-right: 12px; }

.course {
  padding: 15px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 10px;
  transition: background .15s;
}
.course.selected { background: #2c392c; border-color: #859967; }
.course.done { border-color: #637650; }
.course-title { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; font-weight: 600; line-height: 1.4; }
.course input { flex-shrink: 0; accent-color: var(--olive); width: 17px; height: 17px; margin: 2px 0 0; }
.course-meta { font-size: 12px; color: var(--muted); margin: 7px 0 10px; }
.course-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.course select {
  max-width: 105px;
  font-size: 12px;
  border: 1px solid var(--control-line);
  background: var(--white);
  padding: 5px;
  border-radius: 4px;
  color: var(--ink);
}
.complete {
  font-size: 12px;
  background: none;
  border: 1px solid var(--control-line);
  border-radius: 4px;
  color: var(--olive);
  padding: 5px 7px;
}
.complete[aria-pressed='true'] { background: var(--olive); color: var(--paper); }
.agenda-link {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 5px 8px;
  text-align: left;
  font-size: 12px;
  color: var(--mustard);
  background: none;
  border: 1px dashed #5b5540;
  border-radius: 4px;
}
.agenda-link:hover { border-style: solid; }
.course-note { font-size: 12px; line-height: 1.5; margin-top: 10px; color: var(--muted); }
.course-note p { margin: 7px 0 0; }

/* ================================================================ Grade semanal */

.schedule-panel, .agenda-panel {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}
.schedule-heading { margin-bottom: 20px; }

.legend { font-size: 12px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; color: var(--muted); }
.legend i { width: 8px; height: 8px; background: var(--olive); border-radius: 2px; display: inline-block; }
.legend .conflict-dot { background: var(--rust); margin-left: 9px; }

.table-scroll { overflow: auto; }

table { width: 100%; table-layout: fixed; border-spacing: 5px; border-collapse: separate; min-width: 660px; }
thead th { font: 12px Consolas, monospace; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; padding: 3px 0 12px; }
thead th:first-child { width: 86px; }
tbody th { font: 12px Consolas, monospace; color: var(--muted); font-weight: 400; }
td { height: 42px; vertical-align: top; border-radius: 4px; background: var(--cell); padding: 0; }

.break td {
  height: 26px;
  vertical-align: middle;
  text-align: center;
  background: #353c35;
  color: #c2c6b5;
  font: italic 12px Georgia, serif;
}
.break th { color: var(--muted); }

.class-block {
  display: block;
  min-height: 42px;
  padding: 5px 8px;
  border-left: 3px solid #a8bc81;
  background: #354333;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.35;
}
.class-block b { font-size: 13px; display: block; }
.class-block.tint-0 { background: #354333; border-color: #a8bc81; }
.class-block.tint-1 { background: #49402d; border-color: #d4b571; }
.class-block.tint-2 { background: #2f4346; border-color: #94bdc0; }
.class-block.tint-3 { background: #493a32; border-color: #d2a387; }

td.conflict { outline: 1px solid var(--rust); }
td.conflict .class-block { background: var(--peach); border-color: var(--rust); color: #ffd0b8; }

.empty-message { padding: 11px 14px; background: #2c392c; color: var(--olive); font-size: 14px; margin-bottom: 15px; border-radius: 5px; }

.alert { border-left: 3px solid var(--rust); background: var(--peach); color: #ffd0b8; padding: 12px 15px; margin-bottom: 14px; font-size: 14px; }
.alert.info { background: #403a27; color: #e8d5a0; border-color: var(--mustard); }
.alert summary { font-weight: 600; }
.alert ul { padding-left: 18px; margin: 8px 0; }

.schedule-foot { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; color: var(--muted); padding-top: 15px; }

.source-note { border-top: 1px solid var(--line); margin-top: 20px; padding-top: 15px; font-size: 13px; color: var(--muted); }
.source-note summary { font-size: 14px; }
.source-note p { max-width: 85ch; }

/* ================================================================ Agenda */

.agenda-panel { margin-top: 28px; }
.agenda-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }

.agenda-toolbar { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.agenda-toolbar label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.agenda-toolbar select, .field input, .field select, .field textarea {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--control-line);
  border-radius: 4px;
  padding: 6px 8px;
  font-size: 14px;
}
.agenda-toolbar select { max-width: 260px; }

.segmented { display: inline-flex; border: 1px solid var(--control-line); border-radius: 5px; overflow: hidden; }
.segmented button { background: none; border: 0; color: var(--muted); padding: 7px 14px; font-size: 13px; }
.segmented button[aria-pressed='true'] { background: var(--sage); color: var(--ink); }

.agenda-summary { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.agenda-summary:empty { display: none; }
.agenda-summary strong { color: var(--ink); width: 100%; }
.agenda-summary b { color: var(--olive); }

.agenda-group > h3 {
  font: 12px Consolas, monospace;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 18px 0 8px;
}
.agenda-group > h3 span { color: var(--olive); margin-left: 6px; }

.agenda-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--olive);
  border-radius: 6px;
  background: var(--cell);
  margin-bottom: 8px;
}
.agenda-item.status-overdue { border-left-color: var(--rust); }
.agenda-item.status-today { border-left-color: var(--mustard); }
.agenda-item.status-done { opacity: .7; }
.agenda-item.status-done h3 { text-decoration: line-through; }

.agenda-date { display: flex; flex-direction: column; align-items: center; line-height: 1.1; }
.agenda-date strong { font: 26px Georgia, serif; }
.agenda-date span { font-size: 11px; color: var(--muted); text-transform: uppercase; }

.agenda-body h3 { font-size: 15px; margin: 4px 0; overflow-wrap: anywhere; }
.agenda-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; margin: 0; font-size: 12px; color: var(--muted); }
.agenda-score { margin: 0; font-size: 13px; color: var(--olive); }
.agenda-notes { margin: 6px 0 0; font-size: 13px; color: var(--muted); white-space: pre-wrap; overflow-wrap: anywhere; }
.agenda-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.agenda-actions .ghost { font-size: 12px; padding: 5px 9px; }
.agenda-actions [aria-pressed='true'] { color: var(--olive); border-color: var(--olive); }

.tag { font-size: 11px; padding: 1px 7px; border-radius: 10px; border: 1px solid currentColor; }
.kind-prova { color: var(--rust); }
.kind-trabalho { color: var(--mustard); }
.kind-atividade { color: #94bdc0; }
.kind-outro { color: var(--muted); }
.tag.late { color: var(--paper); background: var(--rust); border-color: var(--rust); }

.month-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.month-head h3 { font: normal 20px Georgia, serif; margin: 0 8px; min-width: 190px; text-align: center; text-transform: capitalize; }
.month-head .ghost { padding: 4px 11px; }
table.month { min-width: 700px; }
table.month thead th:first-child { width: auto; }
table.month td { height: 92px; padding: 4px; }
table.month td.outside { opacity: .45; }
table.month td.today { outline: 1px solid var(--mustard); }
.day-number {
  display: block;
  background: none;
  border: 0;
  color: var(--muted);
  font: 12px Consolas, monospace;
  padding: 2px 4px;
  margin-bottom: 2px;
  border-radius: 3px;
}
.day-number:hover { background: var(--sage); color: var(--ink); }
.chip {
  display: block;
  width: 100%;
  margin-top: 3px;
  padding: 2px 6px;
  text-align: left;
  font-size: 11px;
  background: #1c2222;
  border: 0;
  border-left: 3px solid currentColor;
  border-radius: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chip.status-done { opacity: .55; text-decoration: line-through; }

/* ================================================================ Diálogos */

dialog {
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 24px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
}
dialog::backdrop { background: rgba(8, 11, 11, .7); }
dialog h2 { margin-bottom: 14px; }
dialog form { display: flex; flex-direction: column; gap: 12px; }

.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row > .field { flex: 1 1 140px; }
.form-row > .grow { flex: 3 1 220px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.field { min-width: 0; }
.field select { width: 100%; }
.field small { font-size: 11px; }
.field textarea { resize: vertical; }
.field [aria-invalid='true'] { border-color: var(--rust); }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.check input { accent-color: var(--olive); width: 17px; height: 17px; }

.form-errors { margin: 0; padding-left: 18px; color: var(--rust); font-size: 13px; }
.form-errors:empty { display: none; }

.dialog-actions { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 4px; }
.dialog-actions .spacer { flex: 1; }

.auth-message { margin: 0; font-size: 13px; color: var(--olive); min-height: 1.5em; }
.auth-message.error { color: var(--rust); }
.auth-switch { display: flex; gap: 16px; flex-wrap: wrap; margin: 4px 0 0; }

.privacy { display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.privacy p, .privacy ul { margin: 6px 0; }
.privacy ul { padding-left: 20px; color: var(--muted); }
.privacy a { color: var(--olive); }
.privacy .auth-message:empty { display: none; }
.danger-zone {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--rust);
  border-radius: 8px;
  background: var(--peach);
}
.danger-zone h3 { margin: 0; font-size: 15px; color: #ffd0b8; }
.danger-zone p { color: #ffd0b8; }
.danger-zone .field { color: #ffd0b8; }

/* ================================================================ Rodapé */

footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 35px;
  padding: 22px 0;
  color: var(--muted);
  font-size: 13px;
}
footer { align-items: center; gap: 12px; }
footer span { font-family: Georgia, serif; font-style: italic; }

/* ================================================================ Responsivo */

@media (min-width: 1100px) {
  .catalog { max-height: 1100px; overflow: auto; padding-right: 8px; scrollbar-width: thin; scrollbar-color: #58684f transparent; }
}

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 270px minmax(0, 1fr); gap: 18px; }
  .schedule-panel, .agenda-panel { padding: 16px; }
  .edition { display: none; }
  .stats article { padding: 0 16px; }
  .schedule-heading { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 760px) {
  main { padding: 24px 16px 0; }
  .topbar { padding: 14px 16px; min-height: 70px; align-items: flex-start; }
  .save-state { max-width: 160px; text-align: right; font-size: 12px; }
  .account-email { max-width: 140px; }
  h1 { font-size: 32px; }
  .semester { display: none; }
  .stats { grid-template-columns: 1fr 1fr; padding: 0; gap: 0; }
  .stats article { padding: 15px; }
  .stats article:nth-child(2) { border: 0; }
  .stats article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .stats strong { font-size: 29px; }
  .workspace { grid-template-columns: 1fr; }
  .catalog { max-height: 430px; overflow: auto; padding-right: 5px; }
  .schedule-foot { flex-direction: column; }
  .intro { margin-bottom: 22px; }
  .schedule-panel, .agenda-panel { padding: 14px; }
  .brand { font-size: 22px; }
  .intro p:last-child { font-size: 14px; }
  .agenda-item { grid-template-columns: 48px minmax(0, 1fr); }
  .agenda-actions { grid-column: 1 / -1; justify-content: flex-start; }
  .agenda-toolbar select { width: 100%; max-width: 100%; }
  .agenda-toolbar label { flex: 1 1 140px; min-width: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .course { transition: none; }
}