/* Caesar — caesarcampus.com
   Static, no build step. System fonts only. Mobile-first. */

:root {
  --ink: #0A1F2E;
  --ink-2: #122B3B;
  --teal-800: #0E3B52;
  --teal-700: #176080;
  --teal-500: #2A87A8;
  --teal-300: #5FC6DE;
  --teal-100: #DCEEF5;
  --mist: #F7FBFE;
  --line: #DCE7EE;
  --text: #23323C;
  --muted: #576C7A;
  --white: #FFFFFF;

  --radius: 14px;
  --radius-lg: 20px;
  --wrap: 1120px;
  --shadow-sm: 0 1px 2px rgba(10, 31, 46, .06), 0 2px 8px rgba(10, 31, 46, .04);
  --shadow-md: 0 10px 30px rgba(10, 31, 46, .10);
  --shadow-lg: 0 24px 70px rgba(10, 31, 46, .18);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video { display: block; max-width: 100%; }
img, video { height: auto; }

h1, h2, h3 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.14;
  text-wrap: balance;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

main { flex: 1 0 auto; }

a { color: var(--teal-700); }

:focus-visible {
  outline: 3px solid var(--teal-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--white);
  padding: .7em 1.1em;
  border-radius: 0 0 8px 0;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- layout ---------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}
.wrap-narrow { max-width: 860px; }

.section { padding: 64px 0; }
.section-mist { background: var(--mist); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { max-width: 760px; margin-bottom: 36px; }
.section-sub {
  margin-top: 14px;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 62ch;
}

.h2 {
  font-size: clamp(1.6rem, 4.2vw, 2.3rem);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.14rem;
  letter-spacing: -0.015em;
  margin-right: auto;
}
.brand-mark { flex: none; }

.nav {
  display: none;
  gap: 26px;
}
.nav a {
  color: var(--text);
  text-decoration: none;
  font-size: .94rem;
  font-weight: 500;
}
.nav a:hover { color: var(--teal-700); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.signin {
  color: var(--text);
  text-decoration: none;
  font-size: .94rem;
  font-weight: 500;
  display: none;
}
.signin:hover { color: var(--teal-700); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: .82em 1.35em;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease, box-shadow .16s ease;
}
.btn-primary {
  background: var(--teal-700);
  color: var(--white);
  box-shadow: 0 1px 2px rgba(23, 96, 128, .3);
}
.btn-primary:hover { background: #12536F; box-shadow: 0 6px 18px rgba(23, 96, 128, .28); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: #C7D7E0;
}
.btn-ghost:hover { border-color: var(--teal-500); color: var(--teal-800); background: rgba(95, 198, 222, .07); }
.btn-sm { padding: .6em 1em; font-size: .92rem; }
.btn-lg { padding: .95em 1.8em; font-size: 1.06rem; }
.btn-block { display: flex; width: 100%; }

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: 44px 0 56px;
  background:
    radial-gradient(1200px 520px at 76% -10%, rgba(95, 198, 222, .20), transparent 62%),
    radial-gradient(900px 420px at 8% 4%, rgba(23, 96, 128, .10), transparent 60%),
    linear-gradient(180deg, #FBFDFF 0%, #FFFFFF 62%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-inner { text-align: center; }

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: .38em .85em;
  border: 1px solid #C9DEE8;
  border-radius: 999px;
  background: rgba(255, 255, 255, .75);
  color: var(--teal-800);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 auto;
  max-width: 960px;
  font-size: clamp(2.05rem, 7.4vw, 3.42rem);
  line-height: 1.06;
  letter-spacing: -0.032em;
}
.br-lg { display: none; }

.lede {
  margin: 20px auto 0;
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

.hero-note {
  margin: 14px 0 0;
  color: #566B78;
  font-size: .87rem;
  text-wrap: balance;
}

/* video */

.video-frame {
  margin: 34px auto 0;
  max-width: 940px;
  padding: 0;
}

.hero-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid #CFE0E9;
  background: var(--ink-2);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  cursor: default;
}
.video-frame[data-state="placeholder"] .hero-video { cursor: default; }

.video-caption {
  margin-top: 12px;
  color: #566B78;
  font-size: .86rem;
}

/* ---------- dark band ---------- */

.band {
  padding: 56px 0;
}
.band-dark {
  background:
    radial-gradient(900px 400px at 88% 0%, rgba(95, 198, 222, .16), transparent 65%),
    linear-gradient(180deg, #0B2434 0%, #0A1F2E 100%);
  color: #D7E5ED;
}
.band-dark .band-title { color: var(--white); text-align: center; max-width: 22ch; margin: 0 auto 30px; }
.band-dark h2 { color: var(--white); }

.paper-list {
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.paper-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(215, 229, 237, .18);
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
  font-size: .97rem;
  color: #E3EEF4;
}
.paper-list svg { color: var(--teal-300); flex: none; }

.why-copy { max-width: 66ch; margin: 0 auto; }
.why-copy p { color: #C6D8E2; font-size: 1.02rem; line-height: 1.68; margin-bottom: 1.1em; }
.why-copy p:first-child { color: #E3EEF4; font-size: 1.08rem; }
.why-proven {
  padding-top: 4px;
  color: var(--teal-300) !important;
  font-size: .95rem !important;
  border-top: 1px solid rgba(215, 229, 237, .14);
  padding-top: 18px;
  margin-top: 22px;
}

/* ---------- features ---------- */

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.card:hover {
  border-color: #BFD6E2;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card h3 {
  font-size: 1.1rem;
  margin: 14px 0 8px;
  letter-spacing: -0.015em;
}
.card p { color: var(--muted); font-size: .96rem; margin: 0; }

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: var(--teal-100);
  color: var(--teal-700);
}

.feature-foot {
  margin: 30px auto 0;
  max-width: 66ch;
  text-align: center;
  color: var(--muted);
  font-size: .98rem;
}

/* ---------- customize ---------- */

.customize-head .section-sub { color: #C6D8E2; }

.custom-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.custom-grid li {
  padding: 22px 20px;
  border: 1px solid rgba(95, 198, 222, .22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .035);
}
.custom-grid h3 {
  color: var(--white);
  font-size: 1.02rem;
  margin: 0 0 8px;
}
.custom-grid p {
  margin: 0;
  color: #C6D8E2;
  font-size: .94rem;
  line-height: 1.6;
  text-wrap: pretty;
}

/* ---------- steps ---------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: none;
}

.step {
  position: relative;
  padding: 24px 22px 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--teal-700);
  color: var(--white);
  font-weight: 700;
  font-size: .95rem;
  margin-bottom: 12px;
}
.step h3 { font-size: 1.06rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .95rem; margin: 0; }

/* ---------- pricing ---------- */

.price-wrap {
  display: grid;
  gap: 22px;
  align-items: start;
}

.price-card {
  padding: 30px 26px;
  border: 1px solid #BFD6E2;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 260px at 100% 0%, rgba(95, 198, 222, .16), transparent 60%),
    var(--white);
  box-shadow: var(--shadow-md);
}

.price-label {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .76rem;
  font-weight: 700;
  color: var(--teal-700);
}

.price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .35em;
  margin: 0;
  color: var(--ink);
  line-height: 1;
}
.price-from {
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0;
}
.price-amount {
  font-size: clamp(2.6rem, 9vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.price-per {
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
}

.price-sub {
  margin: 10px 0 0;
  color: var(--text);
  font-size: .98rem;
  font-weight: 500;
}

.price-list {
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.price-list li {
  position: relative;
  padding-left: 26px;
  font-size: .96rem;
  color: var(--text);
}
.price-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .52em;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--teal-700);
  border-bottom: 2px solid var(--teal-700);
  transform: rotate(-45deg);
}

.price-terms {
  margin: 14px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
}

.price-aside {
  padding: 30px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--mist);
}
.price-aside h3 { font-size: 1rem; margin-bottom: 12px; }
.price-aside p { color: var(--muted); font-size: .92rem; line-height: 1.6; margin-bottom: .9em; }
.price-aside-note { color: var(--teal-800) !important; font-weight: 600; margin-bottom: 0 !important; }

.price-nofees {
  margin: 8px 0 0;
  color: var(--teal-800);
  font-size: .93rem;
  font-weight: 600;
}

/* ---------- comparison ---------- */

.compare {
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.compare-title {
  margin: 0;
  padding: 22px 22px 0;
  font-size: 1.05rem;
}
.compare-sub {
  margin: 6px 0 0;
  padding: 0 22px 16px;
  color: var(--muted);
  font-size: .9rem;
}

.compare-head { display: none; }

.compare-row {
  display: grid;
  gap: 12px;
  padding: 18px 22px;
  border-top: 1px solid var(--line);
}

.compare-topic {
  margin: 0;
  color: var(--ink);
  font-size: .93rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.compare-cell {
  margin: 0;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.55;
  text-wrap: pretty;
}
.compare-cell::before {
  content: attr(data-col);
  display: block;
  margin-bottom: 3px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #8CA3B1;
}
.compare-cell-us { color: var(--text); font-weight: 500; }
.compare-cell-us::before { color: var(--teal-700); }

/* ---------- faq ---------- */

.faq { display: grid; gap: 10px; }

details {
  border: 1px solid #D3E1E9;
  border-radius: 12px;
  background: var(--white);
  padding: 0 18px;
}
details[open] { border-color: #BFD6E2; box-shadow: var(--shadow-sm); }

summary {
  cursor: pointer;
  padding: 17px 30px 17px 0;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  list-style: none;
  position: relative;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--teal-700);
  border-bottom: 2px solid var(--teal-700);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .18s ease;
}
details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }

details p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: .96rem;
  max-width: 68ch;
}

.faq-more {
  margin: 26px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: .95rem;
}
.faq-more a { font-weight: 600; }

/* ---------- cta ---------- */

.cta-band {
  background:
    radial-gradient(700px 340px at 50% 0%, rgba(95, 198, 222, .22), transparent 68%),
    linear-gradient(180deg, #12536F 0%, #0E3B52 100%);
  color: #DCEAF1;
}
.cta-inner { text-align: center; }
.cta-band h2 { color: var(--white); font-size: clamp(1.65rem, 4.6vw, 2.4rem); }
.cta-sub {
  margin: 14px auto 26px;
  max-width: 54ch;
  color: #C6DDE8;
  font-size: 1.02rem;
}
.cta-band .btn-primary {
  background: var(--white);
  color: var(--teal-800);
}
.cta-band .btn-primary:hover { background: #EAF6FA; box-shadow: 0 8px 26px rgba(0, 0, 0, .22); }
.cta-note { margin: 16px 0 0; color: #A9C9D8; font-size: .9rem; }
.cta-note a { color: #EAF6FA; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- footer ---------- */

.site-footer {
  background: var(--ink);
  color: #9FB6C4;
  padding: 34px 0;
  font-size: .9rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}
.footer-nav a, .footer-copy a { color: #C2D5E0; text-decoration: none; }
.footer-nav a:hover, .footer-copy a:hover { color: var(--white); text-decoration: underline; text-underline-offset: 3px; }
.footer-copy { margin: 0; color: #7E97A6; }

/* ---------- simple pages (404, privacy) ---------- */

.page { padding: 72px 0 96px; }
.page h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); margin-bottom: 18px; }
.page .lede { margin-left: 0; margin-bottom: 28px; text-align: left; }
.page h2 { font-size: 1.2rem; margin: 34px 0 10px; }
.page p, .page li { color: var(--muted); font-size: .98rem; }
.page ul { padding-left: 1.2em; }
.page ul li { margin-bottom: .5em; }
.page .btn { margin-top: 10px; }

/* ---------- breakpoints ---------- */

@media (min-width: 620px) {
  .section { padding: 80px 0; }
  .band { padding: 72px 0; }
  .paper-list { grid-template-columns: repeat(3, 1fr); }
  .paper-list li { flex-direction: column; align-items: flex-start; gap: 10px; padding: 18px; font-size: .93rem; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .custom-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
  .footer-copy { order: 3; }
}

@media (min-width: 860px) {
  .nav { display: flex; }
  .signin { display: inline; }
  .header-inner { height: 68px; }
  .hero { padding: 62px 0 72px; }
  .br-lg { display: inline; }
  .card { padding: 28px 26px; }
  .price-wrap { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 26px; align-items: start; }
  .price-card { padding: 34px 30px; }

  /* comparison opens into three columns: topic, them, us */
  .compare-head {
    display: grid;
    grid-template-columns: minmax(0, .62fr) minmax(0, 1.12fr) minmax(0, 1.12fr);
    gap: 24px;
    padding: 12px 26px;
    background: var(--mist);
    border-top: 1px solid var(--line);
  }
  .compare-th {
    margin: 0;
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted);
  }
  .compare-th-us { color: var(--teal-700); }
  .compare-title { padding: 24px 26px 0; }
  .compare-sub { padding: 0 26px 18px; }
  .compare-row {
    grid-template-columns: minmax(0, .62fr) minmax(0, 1.12fr) minmax(0, 1.12fr);
    gap: 24px;
    align-items: start;
    padding: 16px 26px;
  }
  .compare-cell::before { display: none; }
}

@media (min-width: 980px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .custom-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .step { padding: 26px 22px; }
  .video-frame { margin-top: 42px; }
  .band-dark .band-title { text-align: left; margin-left: 0; }
  .paper-list { max-width: 100%; }
  .why-copy { margin: 0; max-width: 72ch; }

  /* steps read as a timeline row, not another card grid */
  .steps { gap: 26px; position: relative; margin-top: 14px; }
  .step::after {
    content: "";
    position: absolute;
    top: 0;
    left: 40px;
    right: -26px;
    height: 2px;
    background: #C3D8E3;
  }
  .step:last-child::after { display: none; }
  .step {
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding: 36px 0 0;
  }
  .step-num {
    position: absolute;
    top: -17px;
    left: 0;
    margin: 0;
    box-shadow: 0 0 0 6px var(--mist);
  }
  .step h3 { margin-top: 4px; }

  /* FAQ: heading column, questions column */
  .faq-wrap {
    max-width: var(--wrap);
    display: grid;
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    grid-template-areas: "head faq" "head more";
    column-gap: 52px;
    align-items: start;
  }
  .faq-wrap .section-head { grid-area: head; margin-bottom: 0; position: sticky; top: 104px; }
  .faq-wrap .faq { grid-area: faq; }
  .faq-wrap .faq-more { grid-area: more; text-align: left; margin-top: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
  .card:hover { transform: none; }
}

@media print {
  .site-header, .video-frame, .cta-band, .site-footer { display: none; }
  body { color: #000; }
}