/* Shared portal theme, adapted from the supplied INB landing page. */
@font-face {
  font-family: Manrope;
  src: url('/assets/fonts/manrope-variable.ttf') format('truetype');
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
}
:root {
  color-scheme: dark;
  --ink: #f8f6f5;
  --muted: #cfc5c7;
  --paper: #07080c;
  --white: #15141c;
  --green: #f1d6ae;
  --deep: #100e16;
  --lime: #f7e5cb;
  --gold: #f1d6ae;
  --line: rgba(255, 255, 255, .13);
  --danger: #ffc3cd;
  --radius: 28px;
  --shadow: 0 24px 70px rgba(0, 0, 0, .32);
  --crimson: #8d1128;
  --crimson-bright: #cb2041;
  --surface: rgba(255, 255, 255, .045);
  --surface-raised: #19161f;
}

body {
  background: radial-gradient(ellipse at 10% 0%, rgba(141, 17, 40, .2), transparent 44%), #07080c;
  color: var(--ink);
  font-family: Manrope, "Segoe UI", system-ui, sans-serif;
}
::selection { background: #8d1128; color: #fff; }
.skip-link { background: var(--gold); color: #25141a; border-radius: 10px; }
.eyebrow { color: var(--gold); letter-spacing: .13em; }
.eyebrow:before { display: none; }

/* Navigation stays readable over the hero and all application screens. */
.site-header {
  height: 86px;
  padding-inline: max(24px, calc((100vw - 1180px) / 2));
  background: rgba(7, 8, 12, .86);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.brand { gap: 16px; }
.brand img.brand-logo {
  width: 148px;
  height: auto;
  max-height: 52px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  object-fit: contain;
}
.brand small, .brand-tag, .brand-label {
  color: #b8a8ac;
  font-size: .56rem;
  font-weight: 700;
  letter-spacing: .17em;
}
.site-header nav { gap: 6px; }
.site-header nav a, .link-button { color: #d6cdd0; font-size: .8rem; }
.site-header nav a:hover, .site-header nav a.active, .link-button:hover { color: var(--gold); }
.nav-toggle { color: var(--ink); border-color: var(--line); border-radius: 12px; }

.button, .site-header nav a.button {
  color: #fff;
  background: linear-gradient(135deg, #cb2041, #8d1128);
  border: 1px solid #d54760;
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(141, 17, 40, .18);
  font-weight: 800;
}
.button:hover, .site-header nav a.button:hover {
  color: #fff;
  border-color: #ee8497;
  box-shadow: 0 12px 32px rgba(141, 17, 40, .3);
}
.button.secondary, .site-header nav a.button.secondary {
  background: rgba(255, 255, 255, .035);
  border-color: #776470;
  color: var(--ink);
  box-shadow: none;
}
.button.secondary:hover { background: rgba(255, 255, 255, .09); border-color: var(--gold); }
.button.yellow, .button.light {
  background: linear-gradient(135deg, #f7e5cb, #e8c697);
  border-color: #f1d6ae;
  color: #2b111a;
  box-shadow: none;
}
.button.yellow:hover, .button.light:hover { color: #2b111a; border-color: #fff4e6; }
.button.danger { background: #471c28; color: #ffc3cd; border-color: #975065; box-shadow: none; }
.button.danger:hover { background: #592331; color: #ffdce2; border-color: #d28296; }
.button:disabled, .button:disabled:hover {
  opacity: 1;
  color: #c9bcc1;
  background: #44353f;
  border-color: #695460;
  box-shadow: none;
  transform: none;
  cursor: not-allowed;
}
.text-button, .form-note a { color: var(--gold); }
.text-button:hover, .form-note a:hover { color: #fff2e0; }
.text-button:disabled { color: #a997a1; }
.back-link { color: #cfc5c7; }

/* Shared content surfaces. */
.course-card, .auth-panel, .panel, .count, .stat, .syllabus details,
.lecture-body, .quiz-question, .builder-subject, .enrollment-row, .table-wrap {
  background: var(--surface);
  border-color: var(--line);
  border-radius: 24px;
}
.course-card { box-shadow: none; }
.course-card:hover { border-color: rgba(241, 214, 174, .4); box-shadow: var(--shadow); }
.course-art { background: linear-gradient(135deg, #8d1128, #300b19); color: #f7e5cb; }
.course-art.alt { background: linear-gradient(135deg, #282132, #111118); }
.course-art.gold { background: linear-gradient(135deg, #ead1ad, #b98b69); color: #301722; }
.course-body { padding: 26px; }
.course-body .eyebrow { color: var(--gold); }
.course-meta { border-top-color: var(--line); }
.price, .stat b, .count b { color: var(--ink); }
.empty { background: rgba(255, 255, 255, .025); border-color: rgba(241, 214, 174, .28); border-radius: 24px; }
.empty h2 { color: var(--ink); }
.empty-icon { background: rgba(141, 17, 40, .3); color: var(--gold); border: 1px solid var(--line); }
.auth-panel { border-radius: 30px; box-shadow: var(--shadow); }
.auth-story h2 span, .auth-mark { color: var(--gold); }
.auth-story { top: 128px; }
.purchase-card {
  background: radial-gradient(ellipse at top right, rgba(203, 32, 65, .25), transparent 70%), #17101a;
  border: 1px solid rgba(241, 214, 174, .23);
  border-radius: 30px;
  box-shadow: var(--shadow);
}
.purchase-card p, .purchase-card li { color: #d2c3c9; }
.purchase-card .button.secondary { border-color: #8a727e; }
.syllabus summary:hover { color: var(--gold); }
.announcement, .review-question, .content-row { border-bottom-color: var(--line); }
.enrollment-row p { color: var(--gold); }

/* Form controls retain native keyboard and select behavior. */
label { color: #f0e8eb; }
input, select, textarea {
  background: #121119;
  color: var(--ink);
  border: 1px solid #776470;
  border-radius: 12px;
}
input::placeholder, textarea::placeholder { color: #af9fa8; opacity: 1; }
select option, select optgroup { background: #19161f; color: #f8f6f5; }
input:focus, select:focus, textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(241, 214, 174, .12); }
input:disabled, select:disabled, textarea:disabled { color: #b4a6ac; background: #201b24; }
input:-webkit-autofill { -webkit-text-fill-color: #f8f6f5; box-shadow: 0 0 0 1000px #21141e inset; caret-color: #f8f6f5; }
input[type="file"]::file-selector-button {
  background: #30212d;
  color: var(--gold);
  border: 1px solid #78606a;
  border-radius: 8px;
  padding: 8px 11px;
  margin-right: 10px;
  font: inherit;
  cursor: pointer;
}
.check input, .option input { accent-color: #bc3150; }
.auth-divider { color: #b8a8ac; }
.error-box { background: #3c1420; border-color: #925065; color: #ffd3dc; }
.success-box { background: #133125; border-color: #4d8069; color: #b8e9ce; }
.info-box { background: #302619; border-color: #806c47; color: #f5dfbc; }
.tag, .status { background: #302a35; color: #e1d2da; border-radius: 999px; }
.status.published, .status.confirmed, .status.active { background: #153526; color: #b8e9ce; }
.status.pending, .tag.pinned { background: #3b2c15; color: #f5dfbc; }
.status.rejected, .status.revoked, .status.archived { background: #471c28; color: #ffc3cd; }
.network-status { background: #f1d6ae; color: #29121b; }

/* Learner workspace and assessments. */
.learn-nav { background: #100d15; border-right: 1px solid var(--line); }
.learn-nav button { color: #d1c2ca; }
.learn-nav .back-link, .learn-nav .group { color: #b8a8ac; }
.learn-nav .group strong { color: #e1d5dc; }
.learn-nav button.active, .learn-nav button:hover { background: #371625; color: #fff5ea; }
.learn-nav button.active { box-shadow: inset 3px 0 #f1d6ae; }
.lecture-body a { color: var(--gold); }
.lecture-body blockquote { border-left: 3px solid #ba5269; margin-left: 0; padding-left: 20px; color: var(--muted); }
.lecture-body code, .lecture-body pre { background: #0c0a10; color: #f4dec0; border-radius: 6px; }
.video-frame { background: #030307; border: 1px solid var(--line); border-radius: 18px; }
.option { background: rgba(255, 255, 255, .025); border-color: #806c77; }
.option:hover { background: rgba(255, 255, 255, .07); }
.option:has(input:checked) { background: #3d1a2b; border-color: #e0af83; }
.exam-bar { background: #211721; border-color: rgba(241, 214, 174, .3); border-radius: 18px; }
.exam-timer, .score-number { color: var(--gold); }
.flashcard { background: linear-gradient(140deg, #4b1024, #19111f); border: 1px solid rgba(241, 214, 174, .3); border-radius: 28px; }
.flashcard small { color: #d0bfc8; }
progress { accent-color: #d65a72; }
progress::-webkit-progress-bar { background: #392d3a; }
progress::-webkit-progress-value { background: linear-gradient(90deg, #b82c4b, #e8ba91); }
progress::-moz-progress-bar { background: #d65a72; }

/* Administration and dialogs use the same visual language. */
.admin-tabs a { color: #bfb1bb; }
.admin-tabs a.active { border-color: var(--gold); color: var(--gold); }
.admin-tabs a:hover { color: var(--ink); }
.data-table th { background: #211823; color: #dbcbd5; }
.data-table tbody tr:hover { background: rgba(255, 255, 255, .025); }
.data-table td a:not(.button) { color: var(--gold); }
.subject-header { background: rgba(141, 17, 40, .13); border-bottom-color: var(--line); }
.question-editor { background: #1c151f; border-color: rgba(255, 255, 255, .2); border-radius: 18px; }
.row-title .icon { color: var(--gold); }
.code-output { background: #09070d; color: #f7e5cb; }
dialog { background: #19131e; color: var(--ink); border: 1px solid #68525d; border-radius: 28px; }
dialog::backdrop { background: rgba(3, 2, 6, .8); backdrop-filter: blur(6px); }
.dialog-close { background: #342431; color: #f7e5cb; }
.dialog-close:hover { background: #573143; }
.toast { background: #2c1623; color: #fff0df; border: 1px solid #9e647b; border-radius: 18px; }
.page-loader:before { border-color: #493742; border-top-color: var(--gold); }
footer { color: var(--ink); border-top-color: var(--line); padding-block: 42px; }
footer p { color: #b8a8ac; }
.footer-links { color: #d2c2cc; }
.footer-links a:hover { color: var(--gold); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible,
select:focus-visible, summary:focus-visible { outline: 3px solid #f1d6ae; outline-offset: 4px; }

@media (max-width: 850px) {
  .site-header { height: 76px; }
  .site-header nav { top: 75px; background: #100d15; border-bottom-color: #49333e; box-shadow: 0 24px 40px rgba(0, 0, 0, .4); }
  .site-header nav a, .link-button { padding: 13px 16px; }
  .site-header nav .button { margin-top: 5px; }
  .learn-nav { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 620px) {
  .site-header { padding-inline: 20px; }
  .brand { gap: 12px; }
  .brand img.brand-logo { width: 127px; max-height: 44px; }
  .brand small, .brand-tag, .brand-label { font-size: .48rem; letter-spacing: .1em; max-width: 70px; }
  .course-body { padding: 23px; }
  .auth-panel { border-radius: 24px; }
  .panel, .count, .stat, .quiz-question, .builder-subject, .table-wrap { border-radius: 18px; }
}