@import url("_shared.css");

.course__hero {
  padding-block-end: clamp(24px, 4vh, 44px);
  border-block-end: 1px solid var(--oa-line-soft);
}

.course__subtitle {
  margin: 0 0 var(--oa-space-3);
  font-size: 1.12rem;
  color: var(--oa-muted);
}

.course__section {
  margin: clamp(28px, 5vh, 48px) 0 var(--oa-space-3);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--oa-muted);
}

.course__lessons {
  margin: 0;
  padding: 0;
  list-style: none;
  border-block-start: 1px solid var(--oa-line-soft);
}

.lesson-row {
  border-block-end: 1px solid var(--oa-line-soft);
}

.lesson-row__link {
  display: flex;
  align-items: center;
  gap: var(--oa-space-3);
  padding: var(--oa-space-3) 0;
  color: inherit;
  text-decoration: none;
}

.lesson-row__link:hover .lesson-row__title {
  color: var(--oa-accent);
}

.lesson-row__title {
  flex: 1;
  font-size: 1.02rem;
}

.lesson-row__meta {
  font-size: 0.85rem;
  color: var(--oa-muted);
  font-variant-numeric: tabular-nums;
}

.lesson-row__badge {
  padding: 2px 9px;
  border-radius: var(--oa-radius-pill);
  background: var(--oa-accent-wash);
  color: var(--oa-accent);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Locked rows stay clickable -- the lesson page is what explains why. */
.lesson-row--locked .lesson-row__title {
  color: var(--oa-muted);
}

.course__enrolled {
  margin-block-start: var(--oa-space-2);
  font-size: 0.9rem;
  color: var(--oa-muted);
}

.course__enrolled {
  font-weight: 600;
  color: var(--oa-accent);
}

.course__messages {
  margin: var(--oa-space-4) 0 0;
  padding: 0;
  list-style: none;
}

.course__message {
  padding: 10px 14px;
  border-radius: var(--oa-radius-md);
  background: var(--oa-accent-wash);
  color: var(--oa-accent);
  font-size: 0.94rem;
}

.course__message--error {
  background: rgba(192, 57, 43, 0.12);
  color: var(--oa-danger);
}

.lesson-row__lock {
  display: inline-flex;
  color: var(--oa-faint);
}

.lesson-row__lock svg {
  width: 17px;
  height: 17px;
}

/* An account gate, not a paywall: named rather than drawn as a padlock. */
.lesson-row__gate {
  padding: 2px 9px;
  border: 1px solid var(--oa-line);
  border-radius: var(--oa-radius-pill);
  color: var(--oa-muted);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}


/* Hero beside the example feedback on wide screens, stacked on a phone. */
.course__top {
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  padding-block-end: clamp(24px, 4vh, 44px);
  border-block-end: 1px solid var(--oa-line-soft);
}

.course__top .course__hero {
  padding-block-end: 0;
  border-block-end: 0;
}

@media (min-width: 900px) {
  .course__top {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

.course__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--oa-space-2);
  margin: var(--oa-space-4) 0 0;
  padding: 0;
  list-style: none;
}

.course__facts li {
  padding: 4px 12px;
  border: 1px solid var(--oa-line);
  border-radius: var(--oa-radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--oa-ink-soft);
  font-variant-numeric: tabular-nums;
}

.course__outcomes {
  margin-block-start: clamp(28px, 5vh, 48px);
}

.course__outcomes-title {
  margin: 0 0 var(--oa-space-3);
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: var(--oa-ink);
}

.course__outcomes-list {
  display: grid;
  gap: var(--oa-space-2) var(--oa-space-5);
  max-width: 900px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .course__outcomes-list { grid-template-columns: 1fr 1fr; }
}

.course__outcomes-list li {
  position: relative;
  padding-inline-start: 26px;
  line-height: 1.5;
  color: var(--oa-ink-soft);
}

.course__outcomes-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 2px;
  top: 0.45em;
  width: 12px;
  height: 7px;
  border-inline-start: 2px solid var(--oa-accent);
  border-block-end: 2px solid var(--oa-accent);
  transform: rotate(-45deg);
}

/* Phone only: the join form is in the hero, and gone after one scroll. */
.course__sticky { display: none; }

@media (max-width: 719px) {
  .course { padding-block-end: 96px; }

  .course__sticky {
    display: block;
    position: fixed;
    inset-inline: 0;
    bottom: 0;
    z-index: 20;
    transition: transform 0.25s ease;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    border-block-start: 1px solid var(--oa-line);
    background: var(--oa-surface);
    box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.08);
  }

  /* Set by sticky_join.js while the form itself is on screen. */
  .course__sticky.is-hidden { transform: translateY(110%); }

  .course__sticky-button {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border-radius: var(--oa-radius-md);
    background: var(--oa-accent-fill);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
  }
}

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