/* Public pages. Builds on app.css tokens so the site and the app look like one product. */

.mk main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 16px 4rem;
}

/* ---------- Header ---------- */

.mk-top {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem max(16px, calc((100vw - 1160px) / 2));
  border-bottom: 1px solid var(--line);
}

.mk-nav {
  display: flex;
  gap: 1.25rem;
  margin-right: auto;
}

.mk-nav a,
.mk-signin {
  white-space: nowrap;
  color: var(--mute);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95em;
}

.mk-nav a:hover,
.mk-signin:hover {
  color: var(--ink);
}

.mk-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

@media (max-width: 760px) {
  .mk-nav {
    display: none;
  }

  .mk-actions {
    margin-left: auto;
  }
}

/* ---------- Hero ---------- */

.mk-hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 2.5rem;
  align-items: start;
  padding: clamp(2rem, 6vw, 4.5rem) 0 2rem;
}

@media (max-width: 900px) {
  .mk-hero {
    grid-template-columns: 1fr;
  }
}

.mk-hero h1,
.mk-page-head h1 {
  font-size: clamp(2.2rem, 1.5rem + 3vw, 3.6rem);
  letter-spacing: 0.015em;
  line-height: 1.4;
}

.mk-lead {
  font-size: var(--step-1);
  color: var(--mute);
  max-width: 38em;
  margin: 1.1rem 0 1.5rem;
}

.mk-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.mk-fine {
  color: var(--mute);
  font-size: 0.88em;
  margin-top: 0.9rem;
}

.mk-demo .flashcard {
  min-height: 330px;
  align-content: start;
}

.mk-demo .study-top {
  margin-bottom: 0.75rem;
}

.mk-demo .flashcard-q {
  font-size: var(--step-1);
}

.mk-demo .flashcard-a {
  font-size: var(--step-0);
  margin-bottom: 1rem;
}

.mk-demo #demo-reveal {
  width: 100%;
}

.mk-demo #demo-done {
  gap: 1rem;
}

/* Live stats under the demo card, so visitors see each rating move mastery and the schedule */
.mk-demo-stats {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.mk-demo-stats-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.mk-demo-stats-head strong {
  font-size: var(--step-2);
  font-weight: 700;
}

.mk-demo-last {
  margin: 0;
  min-height: 3em;
}

.mk-demo-sched {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.mk-demo-sched li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92em;
}

.mk-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.mk-demo-stats .mk-fine {
  margin: 0;
}

/* ---------- Sections ---------- */

.mk-section {
  padding: clamp(2rem, 5vw, 3.5rem) 0 0;
}

.mk-h2 {
  font-size: var(--step-2);
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
}

.mk-sub {
  color: var(--mute);
  max-width: 44em;
  margin: 0 0 1.25rem;
}

.mk-center {
  text-align: center;
  margin-top: 1.25rem;
}

.mk-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.mk-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 1rem;
}

.mk-code {
  align-items: center;
  gap: 2rem;
}

.mk-code-copy .mk-sub {
  margin-top: 0;
}

.mk-code-card {
  display: grid;
  gap: 1rem;
}

.mk-code-card .flashcard-a {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.mk-point {
  display: grid;
  gap: 0.4rem;
  align-content: start;
}

.mk-point-big {
  font: 700 var(--step-2) var(--head);
  color: var(--accent);
}

.mk-point-big small {
  font-size: 0.5em;
  color: var(--mute);
}

.mk-point h3,
.mk-steps h3,
.mk-viz h3 {
  font-size: var(--step-1);
}

.mk-point p,
.mk-steps p,
.mk-viz p {
  margin: 0;
}

.mk-steps {
  list-style: none;
  counter-reset: step;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.mk-steps li {
  counter-increment: step;
  display: grid;
  gap: 0.4rem;
  align-content: start;
}

.mk-steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(63, 230, 204, 0.15);
  color: var(--accent);
  font: 700 1rem var(--head);
}

/* ---------- Insights visuals ---------- */

.mk-viz {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.mk-viz svg {
  width: 100%;
  height: 140px;
}

.mk-cal {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 1fr);
  gap: 3px;
  height: 140px;
}

.mk-clock {
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  gap: 3px;
  height: 140px;
}

.mk-cal span,
.mk-clock span {
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.06);
}

.mk-cal .l1 { background: #123a3a; }
.mk-cal .l2 { background: #1a5c55; }
.mk-cal .l3 { background: #1f7a6e; }
.mk-cal .l4 { background: var(--teal); }
.mk-clock .l1 { background: #2a2457; }
.mk-clock .l2 { background: #3d3480; }
.mk-clock .l3 { background: #5b47a8; }
.mk-clock .l4 { background: var(--violet); }

/* ---------- Pricing ---------- */

.mk-plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1rem;
  max-width: 820px;
}

.mk-plan {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.mk-plan.is-pro {
  border-color: rgba(63, 230, 204, 0.5);
}

.mk-plan h3 {
  font-size: var(--step-1);
}

.mk-plan-price {
  font: 700 var(--step-3) var(--head);
}

.mk-plan-price small {
  font: 500 0.35em var(--body);
  color: var(--mute);
}

.mk-plan ul {
  margin: 0.25rem 0 0.75rem;
  padding-left: 1.2em;
  display: grid;
  gap: 0.35rem;
}

.mk-plan .btn {
  justify-self: start;
}

.mk-plan-period {
  display: grid;
  gap: 0.6rem;
}

.mk-billing {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.mk-billing button {
  border: 0;
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  background: transparent;
  color: var(--mute);
  font: 600 0.95rem var(--body);
  cursor: pointer;
}

.mk-billing button[aria-checked='true'] {
  background: var(--accent);
  color: #06201c;
}

.mk-save {
  margin-left: 0.35rem;
  font-weight: 500;
  font-size: 0.85em;
}

.mk-yes {
  color: var(--accent);
  font-weight: 600;
}

.mk-table th[scope='row'] {
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
  font-size: 1em;
}

.mk-table td,
.mk-table th {
  white-space: normal;
}

.mk-table .is-us,
.mk-table tr.is-us td {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Compare ---------- */

.mk-page-head {
  padding-top: clamp(2rem, 6vw, 4rem);
}

.mk-page-head .chip {
  margin-bottom: 0.75rem;
}

.mk-pick h2 {
  font-size: var(--step-1);
  margin-bottom: 0.5rem;
}

.mk-pick p {
  margin: 0;
  color: var(--mute);
}

.mk-pick.is-us {
  border-color: rgba(63, 230, 204, 0.5);
}

/* ---------- Legal pages ---------- */

.legal {
  max-width: 760px;
}

.legal h1 {
  font-size: var(--step-3);
  margin-bottom: 0.25rem;
}

.legal h2 {
  font-size: var(--step-1);
  margin: 2rem 0 0.5rem;
}

.legal p,
.legal li {
  line-height: 1.6;
}

.legal ul {
  padding-left: 1.3em;
  display: grid;
  gap: 0.4rem;
}

/* ---------- FAQ ---------- */

.mk-faq {
  display: grid;
  gap: 0.6rem;
  max-width: 820px;
}

.mk-faq details {
  padding: 0;
}

.mk-faq summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 600;
}

.mk-faq p {
  margin: 0;
  padding: 0 1.25rem 1.1rem;
  color: var(--mute);
}

/* ---------- Final CTA and footer ---------- */

.mk-final {
  text-align: center;
  display: grid;
  justify-items: center;
}

.mk-foot {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  padding: 2.5rem max(16px, calc((100vw - 1160px) / 2));
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .mk-foot {
    grid-template-columns: 1fr;
  }
}

.mk-foot nav {
  display: grid;
  gap: 0.4rem;
  align-content: start;
}

.mk-foot h2 {
  font-size: 0.85em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--mute);
  margin-bottom: 0.3rem;
}

.mk-foot nav a {
  color: var(--ink);
  text-decoration: none;
}

.mk-foot nav a:hover {
  color: var(--accent);
}