@import url('colors_and_type.css');

/* ============================================================
   1. Reset / Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0;
  background: var(--fp-bone);
  color: var(--fp-ink);
  font-family: var(--fp-sans);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ============================================================
   2. Layout
   ============================================================ */
.section { padding: var(--fp-s-20) 0; }
.page { max-width: 1120px; margin: 0 auto; padding: 0 var(--fp-s-4); }

/* ============================================================
   3. Nav (sticky, ink background)
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--fp-ink);
  padding: var(--fp-s-3) var(--fp-s-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav__brand-text {
  font-family: var(--fp-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--fp-bone);
  letter-spacing: -0.01em;
}

/* ============================================================
   4. Hero — split layout
   ============================================================ */
.hero {
  padding: var(--fp-s-16) 0 var(--fp-s-20);
}

.hero--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fp-s-12);
  align-items: center;
}

.hero__content {
  text-align: left;
}

.hero__title {
  font-family: var(--fp-serif);
  font-weight: 500;
  font-size: var(--fp-display-2);
  line-height: var(--fp-display-2-lh);
  color: var(--fp-ink);
  letter-spacing: -0.015em;
  margin: var(--fp-s-3) 0 var(--fp-s-2);
}

.fp-period {
  animation: pulse-dot 1.5s ease-in-out infinite;
  display: inline;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 0.55; }
}

.hero__subtext {
  font-family: var(--fp-sans);
  font-size: var(--fp-body);
  line-height: var(--fp-body-lh);
  color: var(--fp-ink-2);
  max-width: 480px;
  margin: 0 0 var(--fp-s-6);
}

.hero-cta {
  padding: 12px 24px;
  font-size: var(--fp-body);
}

.hero__badges {
  display: flex;
  gap: var(--fp-s-2);
  margin-top: var(--fp-s-6);
  flex-wrap: wrap;
}

.exam-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--fp-rule);
  border-radius: var(--fp-r-pill);
  font-family: var(--fp-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--fp-ink-3);
  background: var(--fp-white);
}

/* ============================================================
   5. Device Frame
   ============================================================ */
.device-frame {
  max-width: 400px;
  width: 100%;
  border: 2px solid var(--fp-ink);
  border-radius: var(--fp-r-4);
  padding: 12px;
  background: var(--fp-white);
  margin: 0 auto;
}

.device-frame__screen {
  background: var(--fp-bone);
  border-radius: var(--fp-r-3);
  padding: 16px;
  min-height: 200px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-content: center;
}

.device-frame__module {
  text-align: center;
  padding: var(--fp-s-3) var(--fp-s-2);
  font-family: var(--fp-sans);
  font-size: var(--fp-body-sm);
  color: var(--fp-ink-2);
  border: 1px solid var(--fp-rule);
  border-radius: var(--fp-r-2);
  background: var(--fp-white);
  transition: border-color var(--fp-dur) var(--fp-ease);
}

.device-frame__module:hover {
  border-color: var(--fp-blue-500);
}

.device-frame__module i {
  display: block;
  margin: 0 auto var(--fp-s-1);
  color: var(--fp-blue-500);
}

/* ============================================================
   6. Buttons
   ============================================================ */
.btn-primary {
  background: var(--fp-blue-500);
  color: var(--fp-white);
  border: none;
  padding: 10px 16px;
  border-radius: var(--fp-r-2);
  font-family: var(--fp-sans);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--fp-s-2);
  transition: background var(--fp-dur) var(--fp-ease);
}

.btn-primary:hover { background: var(--fp-blue-600); }

.btn-primary:focus-visible {
  outline: 2px solid var(--fp-blue-500);
  outline-offset: 2px;
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary--lg {
  padding: 12px 24px;
  font-size: var(--fp-body);
  border-radius: var(--fp-r-pill);
}

.btn-primary--nav {
  border-radius: var(--fp-r-pill);
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* ============================================================
   7. Input
   ============================================================ */
.input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--fp-rule-cool);
  border-radius: var(--fp-r-2);
  font-family: var(--fp-sans);
  font-size: 14px;
  color: var(--fp-ink);
  background: var(--fp-white);
  outline: none;
  transition: border-color var(--fp-dur) var(--fp-ease);
}

.input:focus {
  border-color: var(--fp-blue-500);
  box-shadow: inset 0 1px 0 rgba(17, 36, 50, 0.06);
}

.input--error {
  border-color: var(--fp-incorrect);
}

/* ============================================================
   8. Waitlist Form
   ============================================================ */
.waitlist {
  text-align: center;
  background: var(--fp-bone);
  padding: var(--fp-s-20) 0;
  position: relative;
}

.waitlist::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--fp-blue-500);
  border-radius: 2px;
  opacity: 0.3;
}

.waitlist__inner {
  max-width: 520px;
  margin: 0 auto;
  background: var(--fp-white);
  border: 1px solid var(--fp-rule);
  border-radius: var(--fp-r-3);
  padding: var(--fp-s-10) var(--fp-s-8);
}

.waitlist h2 {
  margin: 0 0 var(--fp-s-2);
  font-size: var(--fp-h1);
  line-height: var(--fp-h1-lh);
}

.waitlist .hero__subtext {
  margin: 0 auto var(--fp-s-8);
  max-width: 400px;
}

#waitlist-form {
  display: flex;
  gap: var(--fp-s-2);
  max-width: 480px;
  margin: var(--fp-s-6) auto 0;
}

#waitlist-form .input { flex: 1; }

.turnstile-container {
  display: flex;
  justify-content: center;
  margin: var(--fp-s-3) 0;
}

.form-success {
  color: var(--fp-correct);
  font-size: var(--fp-body-sm);
  display: none;
  margin-top: var(--fp-s-3);
}

.form-success--visible { display: block; }

/* ============================================================
   9. Toast
   ============================================================ */
.toast {
  position: fixed;
  top: var(--fp-s-4);
  right: var(--fp-s-4);
  padding: var(--fp-s-3) var(--fp-s-4);
  border-radius: var(--fp-r-2);
  font-family: var(--fp-sans);
  font-size: var(--fp-body-sm);
  line-height: var(--fp-body-sm-lh);
  transform: translateX(120%);
  transition: transform var(--fp-dur) var(--fp-ease);
  z-index: 1000;
  max-width: 360px;
  color: var(--fp-bone);
}

.toast--visible { transform: translateX(0); }

.toast--success { background: var(--fp-correct); }

.toast--error { background: var(--fp-incorrect); }

/* ============================================================
   10. Footer
   ============================================================ */
.footer {
  background: var(--fp-ink);
  color: var(--fp-bone);
  padding: var(--fp-s-12) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--fp-s-8);
  padding-bottom: var(--fp-s-10);
  border-bottom: 1px solid rgba(245, 240, 235, 0.1);
}

.footer__logo {
  margin: 0;
}

.footer__tagline {
  font-family: var(--fp-serif);
  font-size: var(--fp-body-sm);
  color: rgba(245, 240, 235, 0.6);
  margin: var(--fp-s-2) 0 0;
}

.footer__heading {
  font-family: var(--fp-sans);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(245, 240, 235, 0.4);
  margin: 0 0 var(--fp-s-3);
}

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

.footer__link {
  font-family: var(--fp-sans);
  font-size: 14px;
  color: rgba(245, 240, 235, 0.7);
  text-decoration: none;
  transition: color var(--fp-dur) var(--fp-ease);
  cursor: default;
}

a.footer__link:hover {
  color: var(--fp-bone);
}

.footer__social {
  display: flex;
  gap: var(--fp-s-3);
  justify-content: flex-start;
  margin: 0;
}

.footer__social a {
  color: rgba(245, 240, 235, 0.5);
  transition: color var(--fp-dur) var(--fp-ease);
}

.footer__social a:hover { color: var(--fp-bone); }

.footer__bottom {
  text-align: center;
  padding: var(--fp-s-4) 0;
}

.footer__copyright {
  font-size: 12px;
  color: rgba(245, 240, 235, 0.35);
  margin: 0;
}

/* ============================================================
   11. Utility
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================================
   12. Scroll-margin-top (sticky nav compensation)
   ============================================================ */
#modules,
#waitlist,
#audience,
#footer {
  scroll-margin-top: 68px;
}

/* ============================================================
   13. Module Cards
   ============================================================ */
.modules { text-align: center; }

.modules__intro {
  max-width: 640px;
  margin: 0 auto var(--fp-s-8);
}

.modules__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--fp-s-4);
}

.module-card {
  background: #ffffff;
  border: 1px solid var(--fp-rule);
  border-radius: var(--fp-r-3);
  padding: var(--fp-s-6);
  text-align: center;
  transition: border-color var(--fp-dur) var(--fp-ease);
}

.module-card:hover { border-color: var(--fp-blue-500); }

.module-card i {
  color: var(--fp-blue-500);
  margin-bottom: var(--fp-s-3);
}

.module-card__name {
  font-family: var(--fp-sans);
  font-weight: 600;
  font-size: var(--fp-h4);
  line-height: var(--fp-h4-lh);
  color: var(--fp-ink);
  margin: 0 0 var(--fp-s-2);
}

.module-card__desc {
  font-family: var(--fp-sans);
  font-size: var(--fp-body-sm);
  line-height: var(--fp-body-sm-lh);
  color: var(--fp-ink-2);
  margin: 0;
  opacity: 0;
  max-height: 0;
  transition: opacity var(--fp-dur) var(--fp-ease), max-height var(--fp-dur) var(--fp-ease);
  overflow: hidden;
}

.module-card:focus-within .module-card__desc {
  opacity: 1;
  max-height: 120px;
}

@media (hover: hover) {
  .module-card:hover .module-card__desc {
    opacity: 1;
    max-height: 120px;
  }
}

/* ============================================================
   14. Audience Accordion
   ============================================================ */
.audience { background: var(--fp-bone); }
.audience__intro {
  max-width: 640px;
  margin: 0 auto var(--fp-s-8);
}

.accordion-item {
  border-bottom: 1px solid var(--fp-rule);
}

.accordion-item:first-child {
  border-top: 1px solid var(--fp-rule);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  padding: var(--fp-s-4) 0;
  cursor: pointer;
  font-family: var(--fp-sans);
  font-weight: 600;
  font-size: var(--fp-h4);
  line-height: var(--fp-h4-lh);
  color: var(--fp-ink);
  text-align: left;
}

.accordion-trigger:hover { color: var(--fp-blue-500); }

.accordion-trigger:focus-visible {
  outline: 2px solid var(--fp-blue-500);
  outline-offset: 2px;
}

.accordion-icon {
  transition: transform var(--fp-dur) var(--fp-ease);
  color: var(--fp-ink-3);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--fp-dur-slow) var(--fp-ease);
}

.accordion-panel[aria-hidden="false"] {
  max-height: 300px;
}

.accordion-panel__inner {
  padding: 0 0 var(--fp-s-4);
  font-family: var(--fp-sans);
  font-size: var(--fp-body);
  line-height: var(--fp-body-lh);
  color: var(--fp-ink-2);
}

.accordion-panel__inner p { margin: 0; }

/* ============================================================
   15. Responsive Breakpoints
   ============================================================ */

/* Tablet: 600px to 1023px */
@media (max-width: 1023px) {
  .hero--split {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--fp-s-10);
  }

  .hero__content {
    text-align: center;
  }

  .hero__subtext {
    margin: 0 auto var(--fp-s-6);
  }

  .hero__badges {
    justify-content: center;
  }

  .device-frame {
    max-width: 340px;
  }

  .hero__title {
    font-size: var(--fp-h1);
    line-height: var(--fp-h1-lh);
  }

  .section {
    padding: var(--fp-s-16) 0;
  }

  .modules__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile: <600px */
@media (max-width: 599px) {
  .hero {
    padding: var(--fp-s-10) 0 var(--fp-s-12);
  }

  .hero--split {
    gap: var(--fp-s-8);
  }

  .hero__title {
    font-size: var(--fp-h2);
    line-height: var(--fp-h2-lh);
  }

  .section {
    padding: var(--fp-s-12) 0;
  }

  .device-frame {
    max-width: 280px;
  }

  #waitlist-form {
    flex-direction: column;
  }

  .modules__grid {
    grid-template-columns: 1fr;
  }

  .module-card {
    padding: var(--fp-s-4);
  }

  .module-card__desc {
    opacity: 1;
    max-height: none;
  }

  .accordion-trigger {
    padding: var(--fp-s-3) 0;
    font-size: var(--fp-body);
    line-height: var(--fp-body-lh);
  }

  .nav {
    padding: var(--fp-s-2) var(--fp-s-3);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--fp-s-6);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}