/* Rektoff brand: tokens match the Cohort 4 report site (rektoff-eng/astro-site). */

@font-face {
  font-family: "PP Neue Machina Inktrap";
  src: url("/fonts/PPNeueMachina-InktrapRegular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Geist";
  src: url("/fonts/Geist-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "Geist Mono";
  src: url("/fonts/GeistMono-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --bg: #030804;
  --bg-deep: #021207;
  --bg-card: rgba(2, 18, 7, 0.45);
  --bg-tint: rgba(0, 248, 0, 0.04);
  --accent: #00f800;
  --accent-2: #7cf87a;
  --border-dashed: rgba(0, 248, 0, 0.2);
  --border-solid: rgba(0, 248, 0, 0.33);
  --text: #f4fbf4;
  --text-dim: rgba(244, 251, 244, 0.58);
  --text-dimmer: rgba(244, 251, 244, 0.36);
  --error: #ff6b6b;
  --display: "PP Neue Machina Inktrap", "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --body: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --t-xs: 11px;
  --t-sm: 14px;
  --t-md: 16px;
  --s-1: 8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 40px;
  --s-5: 64px;
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: var(--t-md);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

/* Faint grid, as on the report site. */
body {
  min-height: 100vh;
  background-image:
    linear-gradient(var(--bg-tint) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-tint) 1px, transparent 1px);
  background-size: 48px 48px;
}

h1, h2 { font-family: var(--display); font-weight: 400; letter-spacing: -0.02em; line-height: 1; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.mono { font-family: var(--mono); }
.dim { color: var(--text-dim); }
.nowrap { white-space: nowrap; }

.eyebrow {
  font-size: var(--t-xs);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--s-2);
}

.label {
  display: grid;
  gap: var(--s-1);
  font-size: var(--t-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stack { display: flex; flex-direction: column; gap: var(--s-2); }

input, textarea {
  width: 100%;
  background: transparent;
  border: 1px dashed var(--border-dashed);
  color: var(--text);
  padding: 12px 14px;
  font-family: var(--body);
  font-size: var(--t-md);
  text-transform: none;
  letter-spacing: normal;
  transition: border-color 0.15s ease;
}
input:focus, textarea:focus { border-color: var(--accent); border-style: solid; }
input:focus-visible, textarea:focus-visible { outline: none; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--error); border-style: solid; }
input[type="file"] { padding: 10px; font-size: var(--t-sm); color: var(--text-dim); }
input[type="file"]::file-selector-button {
  margin-right: 12px;
  padding: 6px 10px;
  border: 1px dashed var(--border-solid);
  background: transparent;
  color: var(--text);
  font-family: var(--body);
  cursor: pointer;
}
.otp { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.otp-box {
  height: 64px;
  padding: 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 28px;
  caret-color: var(--accent);
}
.otp-box:not(:placeholder-shown) { border-color: var(--border-solid); border-style: solid; color: var(--accent); }
.otp-box:focus { background: var(--bg-tint); }

button {
  font-family: var(--body);
  font-size: var(--t-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.5; cursor: wait; }
button.primary { background: var(--accent); color: var(--bg-deep); padding: 14px 16px; }
button.primary:hover { background: var(--accent-2); }
button.secondary {
  align-self: flex-start;
  background: transparent;
  color: var(--accent);
  border: 1px dashed var(--border-solid);
  padding: 10px 14px;
}
button.secondary:hover { border-color: var(--accent); }
button.link {
  align-self: flex-start;
  background: none;
  color: var(--text-dim);
  padding: 4px 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}
button.link:hover { color: var(--text); }

.message { font-size: var(--t-sm); color: var(--text-dim); margin-top: var(--s-2); }
.message:empty { display: none; }
.message.error { color: var(--error); }
.message.success { color: var(--accent); }

.pill {
  display: inline-block;
  padding: 1px 8px;
  border: 1px dashed var(--border-solid);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}
.badge.late {
  display: inline-block;
  padding: 1px 6px;
  background: var(--error);
  color: var(--bg-deep);
  font-size: var(--t-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---- login ---- */

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}
.login-card {
  width: 100%;
  max-width: 460px;
  border: 1px dashed var(--border-dashed);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--s-5) var(--s-4);
}
.login-card h1 { font-size: clamp(48px, 9vw, 72px); margin-bottom: var(--s-2); }
.blurb { color: var(--text-dim); font-size: var(--t-sm); margin-bottom: var(--s-4); }
.cf-turnstile { min-height: 65px; }

/* ---- progress ---- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-1) var(--s-2);
  padding: 14px 16px;
  background: rgba(3, 8, 4, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px dashed var(--border-dashed);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-size: 18px; }
.who { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: var(--t-sm); }

.page { max-width: 760px; margin: 0 auto; padding: var(--s-5) 16px; }
.page-title { font-size: clamp(40px, 7vw, 64px); margin-bottom: var(--s-2); }
.summary { color: var(--text-dim); font-size: var(--t-sm); }

.cards { display: flex; flex-direction: column; gap: var(--s-2); margin-top: var(--s-4); }
.card {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  border: 1px dashed var(--border-dashed);
  background: var(--bg-card);
  padding: var(--s-3);
}
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--s-2); }
.card-id { font-size: var(--t-xs); color: var(--accent); letter-spacing: 0.04em; margin-bottom: 6px; }
.card h2 { font-size: 26px; line-height: 1.1; }
.meta { display: flex; flex-wrap: wrap; gap: 4px var(--s-2); font-size: var(--t-sm); }
.instructions { font-size: var(--t-sm); }
.empty-state { font-size: var(--t-sm); margin-top: var(--s-1); }

.submission {
  margin-top: var(--s-1);
  padding: var(--s-2);
  background: var(--bg-tint);
  border: 1px dashed var(--border-dashed);
}
.submission-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: var(--t-sm); }
.chip {
  display: inline-block;
  padding: 2px 8px;
  font-size: var(--t-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid var(--border-solid);
  color: var(--text-dim);
}
.chip.tone-graded { background: var(--accent); border-color: var(--accent); color: var(--bg-deep); }
.chip.tone-review { border-color: #f5c542; color: #f5c542; }
.chip.tone-resubmit { border-color: var(--error); color: var(--error); }
.details {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 6px var(--s-2);
  margin-top: var(--s-2);
  font-size: var(--t-sm);
}
.details dt {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dimmer);
  padding-top: 2px;
}
.details dd { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.details code {
  font-family: var(--mono);
  font-size: 13px;
  padding: 1px 6px;
  border: 1px dashed var(--border-solid);
  color: var(--accent);
}

.grade {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--s-3);
  align-items: start;
  margin-top: var(--s-1);
  padding-top: var(--s-2);
  border-top: 1px dashed var(--border-dashed);
}
.label-sm {
  font-family: var(--mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dimmer);
  margin-bottom: 4px;
}
.score { font-family: var(--display); line-height: 1; color: var(--accent); white-space: nowrap; }
.score-value { font-size: 56px; }
.score-max { font-size: 24px; color: var(--text-dim); margin-left: 4px; }
.grade-feedback { border-left: 2px solid var(--border-solid); padding-left: var(--s-2); }
.feedback { white-space: pre-wrap; font-size: var(--t-sm); }
.actions { display: flex; align-items: center; gap: var(--s-2); margin-top: var(--s-1); }
.submit-form { border-top: 1px dashed var(--border-dashed); padding-top: var(--s-2); margin-top: var(--s-1); }
.req { color: var(--accent); }
.hint { font-size: var(--t-sm); }
.history summary { cursor: pointer; font-size: var(--t-xs); color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.history ol { margin-top: var(--s-1); padding-left: 20px; font-size: var(--t-sm); color: var(--text-dim); font-family: var(--mono); }

@media (max-width: 480px) {
  .login-card { padding: var(--s-4) var(--s-3); }
  .card { padding: var(--s-2); }
  .grade { grid-template-columns: 1fr; gap: var(--s-2); }
  .otp { gap: 6px; }
  .otp-box { height: 56px; font-size: 24px; }
}