/* Mirra — monochrome, monospace UI. Dark/light driven by [data-theme] on <html>. */

:root[data-theme="dark"] {
  --bg: #0d0d0d;
  --surface: #161616;
  --surface-2: #1f1f1f;
  --fg: #f2f2f2;
  --muted: #8a8a8a;
  --border: #333333;
  --border-strong: #555555;
  --inverse-bg: #f2f2f2;
  --inverse-fg: #0d0d0d;
  --accent: #2effda;
  /* Stoplicht: gedempt groen/rood voor het donkere thema. */
  --pass-bg: #16291d;
  --pass-fg: #74d99a;
  --pass-border: #2f6f47;
  --fail-bg: #2c1719;
  --fail-fg: #ef9a9a;
  --fail-border: #844040;
  --redo-bg: #2a1e08;
  --redo-fg: #f0a830;
  --redo-border: #7a5010;
}

:root[data-theme="light"] {
  --bg: #ededed;
  --surface: #ffffff;
  --surface-2: #f4f4f4;
  --fg: #111111;
  --muted: #6b6b6b;
  --border: #cfcfcf;
  --border-strong: #999999;
  --inverse-bg: #111111;
  --inverse-fg: #ffffff;
  --accent: #007a6e;
  /* Stoplicht: gedempt groen/rood voor het lichte thema. */
  --pass-bg: #e4f4e9;
  --pass-fg: #1d6b3c;
  --pass-border: #8ccfa3;
  --fail-bg: #fae4e4;
  --fail-fg: #a52d2d;
  --fail-border: #d99c9c;
  --redo-bg: #fdf3e0;
  --redo-fg: #8a5f10;
  --redo-border: #e0b060;
}

* { box-sizing: border-box; }

html { color-scheme: dark light; }

body {
  margin: 0;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  font-size: 14px;
  letter-spacing: 0.01em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-footer {
  text-align: right;
  padding: 0.75rem 1.5rem 1rem;
  font-size: 0.75em;
  opacity: 0.5;
}

main {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

/* Full-bleed pages (e.g. the calendar) span the viewport instead of a column. */
main.wide {
  max-width: none;
  padding: 1rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

main.centered {
  max-width: 460px;
  margin-top: 14vh;
}

h1, h2, h3 {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}
h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1rem; margin: 2rem 0 0.75rem; color: var(--muted); }
h3 { font-size: 0.85rem; margin: 1.25rem 0 0.5rem; color: var(--muted); }

a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--border-strong); }
a:hover { border-bottom-color: var(--fg); }

p { margin: 0.5rem 0; }
.muted { color: var(--muted); }

/* Section label, like "SETTINGS" / "MOVEMENT" in the reference */
.label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--muted);
  display: block;
  margin: 1.5rem 0 0.5rem;
}

/* --- Buttons / keycaps --- */
.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  margin: 0.25rem 0.25rem 0.25rem 0;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border-strong);
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--surface-2); border-color: var(--fg); }

.btn-primary { background: var(--inverse-bg); color: var(--inverse-fg); border-color: var(--inverse-bg); }
.btn-primary:hover { opacity: 0.85; background: var(--inverse-bg); }

.btn-danger { background: var(--fail-bg); border-color: var(--fail-border); color: var(--fail-fg); }
.btn-danger:hover { background: var(--fail-fg); border-color: var(--fail-border); color: var(--fail-bg); }

/* --- Surfaces --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.card > .label:first-child { margin-top: 0; }

.card-instructions {
  background: var(--surface-2);
  border-left: 3px solid var(--accent);
}

.card-instructions .label {
  color: var(--accent);
}

.card-instructions p {
  white-space: pre-wrap;
}

/* --- Badges (monochrome) --- */
.badge {
  display: inline-block;
  vertical-align: middle;
  padding: 0.12rem 0.5rem;
  border-radius: 0;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--border-strong);
}
.badge-pass { background: var(--pass-bg); color: var(--pass-fg); border-color: var(--pass-border); }
.badge-fail { background: var(--fail-bg); color: var(--fail-fg); border-color: var(--fail-border); }
.badge-redo { background: var(--redo-bg); color: var(--redo-fg); border-color: var(--redo-border); }
.badge-pending { background: transparent; color: var(--muted); border-style: dashed; }
.badge-neutral { background: var(--surface-2); color: var(--muted); }

.rdot { font-size: 0.8rem; white-space: nowrap; cursor: default; }
.rdot-none    { color: var(--muted); opacity: 0.5; }
.rdot-pending { color: var(--muted); }
.rdot-pass    { color: var(--pass-fg); }
.rdot-mixed   { color: var(--redo-fg); }
.rdot-fail    { color: var(--fail-fg); }

/* --- Forms --- */
label { display: block; margin: 1rem 0 0.35rem; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); }
input[type="text"], input[type="email"], input[type="datetime-local"], input[type="date"], textarea, select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border-strong);
  border-radius: 0;
  font-family: inherit;
  font-size: 0.85rem;
}
input[type="file"] { font-family: inherit; font-size: 0.8rem; color: var(--muted); }
textarea { min-height: 140px; resize: vertical; }

/* Radio "type OR upload" chooser */
.response-modes { display: flex; gap: 1.25rem; margin: 0.25rem 0 0.5rem; }
label.inline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
  color: var(--fg);
  font-size: 0.85rem;
}

/* Evaluation loader overlay */
.loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
/* The `hidden` attribute alone is overridden by the display rule above, so
   the overlay would otherwise show on every page. Honour `hidden` explicitly. */
.loader-overlay[hidden] { display: none; }
.loader-box {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  padding: 1.75rem 2rem;
  text-align: center;
  max-width: 340px;
}
.loader-box p { margin: 0.35rem 0 0; }
.spinner {
  width: 28px;
  height: 28px;
  margin: 0 auto 0.9rem;
  border: 2px solid var(--border);
  border-top-color: var(--fg);
  border-radius: 50%;
  animation: mirra-spin 0.8s linear infinite;
}
@keyframes mirra-spin { to { transform: rotate(360deg); } }

/* --- HTMX indicator --- */
.htmx-indicator { opacity: 0; transition: opacity 0.15s; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }

/* --- Optimise panel --- */
.optimise-bar { display: flex; align-items: center; gap: 0.75rem; margin: 0.5rem 0 0; }
.optimise-panel { margin-top: 1rem; border: 1px solid var(--border); border-radius: 6px; padding: 1rem; }
.optimise-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.optimise-pre {
  font-family: inherit;
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  background: var(--surface-2);
  padding: 0.75rem;
  border-radius: 4px;
  margin: 0.35rem 0 0;
  border: 1px solid var(--border);
}
.optimise-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.optimise-questions { margin: 0.5rem 0 0; padding-left: 1.25rem; }
.optimise-questions li { margin: 0.4rem 0; font-size: 0.88rem; line-height: 1.5; }

/* --- Topbar --- */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar a:not(.btn) { border-bottom: none; }
.topbar strong { text-transform: uppercase; letter-spacing: 0.22em; }
.topbar .right { display: flex; align-items: center; gap: 0.75rem; }

/* Theme toggle (segmented control like LIGHT/DARK in the reference) */
.theme-toggle { display: inline-flex; border: 1px solid var(--border-strong); }
.theme-toggle button {
  background: transparent;
  color: var(--muted);
  border: none;
  padding: 0.35rem 0.7rem;
  font-family: inherit;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
}
.theme-toggle button[aria-pressed="true"] { background: var(--inverse-bg); color: var(--inverse-fg); }

/* --- Calendar --- */
.cal-page { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.cal-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); border-left: 1px solid var(--border); border-top: 1px solid var(--border); }
/* Fullscreen variant: fill remaining viewport height, equal-height week rows. */
.cal-grid-full { flex: 1; min-height: 0; }
.cal-grid-full .cal-cell { min-height: 0; overflow-y: auto; }
.cal-head {
  padding: 0.4rem 0.5rem;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.cal-cell {
  min-height: 92px;
  padding: 0.3rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.cal-cell-out { background: var(--surface-2); }
.cal-cell-out .cal-day { color: var(--muted); opacity: 0.5; }
.cal-cell-today { outline: 1px solid var(--border-strong); outline-offset: -1px; }
.cal-day { font-size: 0.7rem; color: var(--muted); }
.cal-cell-today .cal-day { color: var(--fg); font-weight: 700; }
.cal-pill {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.25rem 0.35rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
}
.cal-pill:hover { background: var(--surface-2); }
.cal-pill-title { font-size: 0.66rem; line-height: 1.2; color: var(--fg); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* Stoplicht-accent op de kalender: groene/rode rand maakt de status scanbaar. */
.cal-pill-pass { border-left: 4px solid var(--pass-border); background: var(--pass-bg); }
.cal-pill-pass:hover { background: var(--pass-bg); border-color: var(--pass-border); }
.cal-pill-fail { border-left: 4px solid var(--fail-border); background: var(--fail-bg); }
.cal-pill-fail:hover { background: var(--fail-bg); border-color: var(--fail-border); }
.cal-pill-redo { border-left: 4px solid var(--redo-border); background: var(--redo-bg); }
.cal-pill-redo:hover { background: var(--redo-bg); border-color: var(--redo-border); }
.cal-pill-pending { border-left: 4px solid var(--border-strong); }

@media (max-width: 700px) {
  .cal-cell { min-height: 60px; }
  .cal-pill-title { display: none; }
}

/* --- Inline rename (details/summary naast h1) --- */
.page-heading { display: flex; align-items: baseline; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 0.25rem; }
.page-heading h1 { margin: 0; }
.inline-rename summary { list-style: none; cursor: pointer; }
.inline-rename summary::-webkit-details-marker { display: none; }
.inline-rename-form {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}
.inline-rename-form input[type="text"] { width: auto; flex: 1; min-width: 200px; }

/* --- Chat thread (verdiepingsvragen) --- */
.chat-thread {
  margin: 0.5rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.chat-exchange {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-left: 1.25rem;
  border-left: 2px solid var(--border);
  margin-bottom: 1.25rem;
}
.chat-exchange:last-child { margin-bottom: 0; }

.chat-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  max-width: 78%;
}
.chat-row-q { align-self: flex-start; }
.chat-row-a { align-self: flex-end; flex-direction: row-reverse; }
.chat-row-form { align-self: flex-end; flex-direction: row-reverse; width: 100%; }

#chat-answer-row {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: min(100%, 1000px);
  padding: 0.6rem 1.5rem;
  background: var(--bg);
  border-top: 1px solid var(--border-strong);
  z-index: 100;
  box-sizing: border-box;
}
#chat-answer-row .chat-avatar { display: none; }
body:has(#chat-answer-row) main { padding-bottom: 5rem; }

.chat-avatar {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--border-strong);
  margin-top: 0.15rem;
}
.chat-avatar-ai { color: var(--accent); border-color: var(--accent); }
.chat-avatar-student { color: var(--fg); background: var(--surface-2); }

.chat-msg {
  flex: 1;
  padding: 0.8rem 1.1rem;
  border: 1px solid var(--border);
}
.chat-q { background: var(--surface-2); border-left: 3px solid var(--accent); }
.chat-q-active { background: var(--surface-2); border-left: 3px solid var(--accent); box-shadow: -2px 0 8px color-mix(in srgb, var(--accent) 25%, transparent); }
.chat-a { background: var(--surface); border-right: 3px solid var(--fg); }
.chat-msg.chat-form { padding: 0; border: none; background: transparent; }

.chat-input-form {
  display: flex;
  align-items: flex-end;
  gap: 0;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
}
.chat-input-form textarea {
  flex: 1;
  resize: none;
  overflow: hidden;
  min-height: 0;
  max-height: 12rem;
  padding: 0.65rem 0.85rem;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: inherit;
  color: var(--fg);
  line-height: 1.5;
  outline: none;
}
.chat-input-form textarea::placeholder { color: var(--muted); }
.chat-send-btn {
  flex-shrink: 0;
  align-self: flex-end;
  width: 2.6rem;
  height: 2.6rem;
  margin: 0.3rem;
  background: var(--accent);
  color: var(--bg);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s;
}
.chat-send-btn:hover { opacity: 0.8; }

.chat-typing { display: flex; gap: 6px; align-items: center; padding: 0.2rem 0; }
.chat-typing span {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  animation: chat-dot 1.2s ease-in-out infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes chat-dot {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
  40% { transform: translateY(-6px); opacity: 1; }
}

@media (max-width: 600px) {
  .chat-row, .chat-row-form { max-width: 100%; }
}

.badge-ai-flag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  background: color-mix(in srgb, #c17f00 12%, transparent);
  color: #c17f00;
  border: 1px solid color-mix(in srgb, #c17f00 35%, transparent);
  vertical-align: middle;
  cursor: default;
  letter-spacing: 0.03em;
}

.chat-suspicious-teacher {
  margin: 0.5rem 0 0;
  font-size: 0.78rem;
  color: #c17f00;
  background: color-mix(in srgb, #c17f00 10%, transparent);
  border: 1px solid color-mix(in srgb, #c17f00 30%, transparent);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
}
.chat-suspicious-student {
  margin: 0.5rem 0 0;
  font-size: 0.76rem;
  color: var(--muted);
}

/* --- Homepage mirror gif --- */
.mirror-gif {
  display: block;
  margin: 1.25rem auto;
  filter: grayscale(1) contrast(1.15) brightness(0.95);
  transition: filter 0.4s ease;
}
.mirror-gif:hover { filter: none; }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1.5rem; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--border); font-size: 0.82rem; }
th { text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.68rem; color: var(--muted); }

/* --- Todo strip (openstaande opdrachten boven de kalender) --- */
.todo-strip {
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  margin-bottom: 0.75rem;
}
.todo-strip-inner { padding: 0.6rem 0.85rem 0.75rem; }
.todo-strip .label { margin: 0 0 0.4rem; }
.todo-empty { margin: 0; font-size: 0.8rem; }
.todo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 160px;
  overflow-y: auto;
}
.todo-item a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.3rem 0.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}
.todo-item:last-child a { border-bottom: none; }
.todo-item a:hover { background: var(--surface-2); border-bottom-color: var(--border); }
.todo-item:last-child a:hover { border-bottom: none; }
.todo-deadline { font-size: 0.7rem; color: var(--muted); min-width: 3.8rem; flex-shrink: 0; }
.todo-item-urgent .todo-deadline { color: var(--fail-fg); font-weight: 600; }
.todo-title { flex: 1; font-size: 0.8rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

@media (max-width: 700px) {
  .todo-strip-inner { padding: 0.5rem 0.6rem 0.6rem; }
  .todo-deadline { min-width: 3rem; }
}
