:root {
  --navy-950: #081c2c;
  --navy-900: #102a43;
  --navy-800: #173f5f;
  --blue-500: #1d7a9b;
  --teal-500: #12a594;
  --teal-100: #dff6f1;
  --warm-500: #e6a23c;
  --warm-100: #fff0d8;
  --cream: #f8f6f0;
  --paper: #fffdfa;
  --white: #ffffff;
  --ink: #122230;
  --muted: #5d6c78;
  --line: #dfe6e8;
  --whatsapp: #25d366;
  --shadow-sm: 0 8px 24px rgba(8, 28, 44, .08);
  --shadow-md: 0 20px 60px rgba(8, 28, 44, .13);
  --shadow-lg: 0 30px 80px rgba(8, 28, 44, .2);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --container: 1180px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 95px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Aptos", "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  color: var(--navy-950);
  font-family: "Aptos Display", "Segoe UI", Arial, sans-serif;
  line-height: 1.08;
  letter-spacing: -.035em;
}

h1 { font-size: clamp(3.1rem, 6vw, 5.8rem); }
h2 { font-size: clamp(2.3rem, 4vw, 4.2rem); }
h3 { font-size: 1.4rem; }

::selection { color: var(--white); background: var(--blue-500); }

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.section { padding: 120px 0; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--white);
  background: var(--navy-950);
  transform: translateY(-160%);
  transition: transform .2s ease;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  border-bottom: 1px solid transparent;
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.site-header.is-scrolled {
  border-color: rgba(16, 42, 67, .08);
  background: rgba(255, 253, 250, .94);
  box-shadow: 0 6px 28px rgba(8, 28, 44, .07);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--navy-900);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 15px;
  color: var(--white);
  background: var(--navy-900);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.08em;
}

.brand-mark span { color: var(--warm-500); }

.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: .99rem; }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: .7rem; letter-spacing: .02em; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav > a {
  position: relative;
  color: #334b5e;
  font-size: .85rem;
  font-weight: 650;
  text-decoration: none;
}

.main-nav > a:not(.nav-cta)::after {
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  content: "";
  background: var(--teal-500);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s ease;
}

.main-nav > a:not(.nav-cta):hover::after,
.main-nav > a:not(.nav-cta):focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.main-nav .nav-cta {
  padding: 11px 17px;
  border-radius: 999px;
  color: var(--white);
  background: var(--navy-900);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, background .2s ease;
}

.main-nav .nav-cta:hover { background: var(--blue-500); transform: translateY(-2px); }
.menu-toggle { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 160px 0 0;
  background:
    linear-gradient(120deg, rgba(18, 165, 148, .07), transparent 30%),
    var(--cream);
}

.hero::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 100%;
  content: "";
  background: linear-gradient(180deg, rgba(16, 42, 67, .035), transparent 70%);
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  pointer-events: none;
}

.hero-shape-one {
  top: -180px;
  right: 4%;
  width: 430px;
  height: 430px;
  border: 1px solid rgba(29, 122, 155, .12);
}

.hero-shape-two {
  right: -230px;
  bottom: 100px;
  width: 520px;
  height: 520px;
  background: rgba(230, 162, 60, .08);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: 76px;
}

.eyebrow, .kicker {
  color: var(--blue-500);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding: 8px 13px;
  border: 1px solid rgba(29, 122, 155, .17);
  border-radius: 999px;
  background: rgba(255, 255, 255, .62);
}

.eyebrow span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal-500);
  box-shadow: 0 0 0 5px rgba(18, 165, 148, .11);
}

.hero h1 { max-width: 760px; margin-bottom: 28px; }
.hero h1 em { color: var(--blue-500); font-style: normal; }

.hero-lead {
  max-width: 670px;
  margin-bottom: 24px;
  color: #435665;
  font-size: 1.18rem;
}

.hero-lead strong { color: var(--navy-900); }

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--navy-800);
  font-size: .8rem;
  font-weight: 700;
}

.hero-tags span + span {
  padding-left: 14px;
  border-left: 1px solid #cad5d9;
}

.hero-tags svg, .button svg, .about-points svg,
.pricing-includes svg, .floating-whatsapp svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.hero-tags svg { color: var(--teal-500); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 15px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 53px;
  padding: 0 23px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .89rem;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.button:hover { transform: translateY(-3px); }
.button-primary { color: var(--white); background: var(--navy-900); box-shadow: var(--shadow-md); }
.button-primary:hover { background: var(--blue-500); box-shadow: 0 16px 38px rgba(29, 122, 155, .26); }
.button-ghost { border-color: #ccd7dc; color: var(--navy-800); background: rgba(255,255,255,.45); }
.button-ghost:hover { border-color: var(--blue-500); background: var(--white); }

.contact-note { margin: 19px 0 0; color: #667781; font-size: .78rem; }
.contact-note a { color: var(--navy-900); font-weight: 800; text-decoration: none; }

.hero-visual { position: relative; }

.photo-frame {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  border-radius: 180px 180px 34px 34px;
  background: #d9c4a7;
  box-shadow: var(--shadow-lg);
}

.photo-frame > img {
  width: 100%;
  height: 100%;
  min-height: 620px;
  object-fit: cover;
  object-position: 59% center;
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(8, 28, 44, .32));
}

.photo-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 186px;
  padding: 13px 16px;
  border: 1px solid rgba(255, 255, 255, .75);
  border-radius: 16px;
  background: rgba(255, 255, 255, .9);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(13px);
}

.photo-badge-top { top: 32%; left: 18px; }
.photo-badge-bottom { right: 18px; bottom: 32px; }

.badge-icon {
  display: grid;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: var(--teal-500);
  background: var(--teal-100);
}

.badge-icon-warm { color: #b97412; background: var(--warm-100); }
.badge-icon svg { width: 22px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.photo-badge span:last-child { display: grid; line-height: 1.2; }
.photo-badge small { color: var(--muted); font-size: .67rem; }
.photo-badge strong { margin-top: 3px; color: var(--navy-900); font-size: .82rem; }

.formula {
  position: absolute;
  z-index: -1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(29, 122, 155, .16);
  border-radius: 50%;
  color: rgba(29, 122, 155, .5);
  font-family: Georgia, serif;
  font-style: italic;
}

.formula-one { top: 5%; right: -65px; width: 92px; height: 92px; transform: rotate(10deg); }
.formula-two { bottom: 6%; left: -84px; width: 112px; height: 112px; color: rgba(176, 110, 14, .5); transform: rotate(-9deg); }

.trust-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 92px;
  border-radius: 22px 22px 0 0;
  background: var(--white);
  box-shadow: 0 -15px 60px rgba(8, 28, 44, .08);
}

.trust-strip > div {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 112px;
  padding: 20px 28px;
}

.trust-strip > div + div { border-left: 1px solid var(--line); }
.trust-strip strong { color: var(--blue-500); font-size: 2.1rem; line-height: 1; letter-spacing: -.07em; }
.trust-strip span { color: #52636e; font-size: .76rem; line-height: 1.4; }

.section-heading { max-width: 720px; margin-bottom: 60px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2 { margin-bottom: 22px; }
.section-heading > p:last-child { color: var(--muted); }
.kicker { margin-bottom: 17px; }

.subject-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.subject-card {
  position: relative;
  overflow: hidden;
  min-height: 355px;
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.subject-card:hover { transform: translateY(-8px); border-color: rgba(29,122,155,.35); box-shadow: var(--shadow-md); }
.subject-card.featured { color: rgba(255,255,255,.75); border-color: transparent; background: var(--navy-900); box-shadow: var(--shadow-md); }
.subject-card.featured h3 { color: var(--white); }
.subject-card.featured .subject-number { color: rgba(255,255,255,.38); }
.subject-card.featured .subject-icon { color: var(--warm-500); background: rgba(255,255,255,.08); }
.subject-card.featured .subject-line { background: var(--warm-500); }

.subject-number { position: absolute; top: 28px; right: 30px; color: #a7b5bd; font-size: .72rem; font-weight: 800; letter-spacing: .12em; }
.subject-icon { display: grid; width: 74px; height: 74px; margin-bottom: 52px; place-items: center; border-radius: 20px; color: var(--blue-500); background: #e8f4f7; }
.math-icon { font-family: Georgia, serif; font-size: 2.4rem; }
.subject-icon svg { width: 43px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.subject-card h3 { margin-bottom: 13px; font-size: 1.75rem; }
.subject-card p { margin-bottom: 22px; color: inherit; opacity: .75; }
.subject-line { position: absolute; bottom: 0; left: 36px; width: 56px; height: 4px; background: var(--teal-500); }

.levels-panel {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 80px;
  margin-top: 90px;
  padding: 70px;
  border-radius: var(--radius-lg);
  background: var(--cream);
}

.levels-intro { position: sticky; top: 120px; align-self: start; }
.levels-intro h2 { margin-bottom: 23px; font-size: clamp(2.1rem, 3.4vw, 3.5rem); }
.levels-intro > p:last-child { color: var(--muted); }

.level-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid #d9dedb;
}

.level-item:last-child { border-bottom: 1px solid #d9dedb; }
.level-label { display: grid; width: 44px; height: 44px; place-items: center; border-radius: 50%; color: var(--white); background: var(--navy-900); font-size: .69rem; font-weight: 800; }
.level-item h3 { margin: 1px 0 8px; font-size: 1.25rem; }
.level-item p { margin: 0; color: var(--muted); font-size: .9rem; }

.method { position: relative; overflow: hidden; color: rgba(255,255,255,.72); background: var(--navy-950); }
.method::before { position: absolute; inset: 0; content: ""; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
.method .container { position: relative; }
.light { color: var(--teal-500); }

.split-heading {
  display: grid;
  grid-template-columns: 1.1fr .75fr;
  align-items: end;
  gap: 100px;
  max-width: none;
}

.split-heading h2 { max-width: 650px; margin-bottom: 0; color: var(--white); }
.split-heading > p { margin-bottom: 5px; color: rgba(255,255,255,.62); }

.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.step-card { position: relative; min-height: 330px; padding: 32px 27px; border: 1px solid rgba(255,255,255,.09); border-radius: var(--radius-md); background: rgba(255,255,255,.045); transition: transform .3s ease, background .3s ease; }
.step-card:hover { transform: translateY(-7px); background: rgba(255,255,255,.075); }
.step-number { position: absolute; top: 25px; right: 25px; color: rgba(255,255,255,.27); font-size: .7rem; font-weight: 800; letter-spacing: .13em; }
.step-icon { display: grid; width: 54px; height: 54px; margin-bottom: 63px; place-items: center; border-radius: 15px; color: var(--teal-500); background: rgba(18,165,148,.11); }
.step-icon svg, .method-callout-icon svg, .panel-icon svg { width: 27px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.6; }
.step-card h3 { margin-bottom: 14px; color: var(--white); font-size: 1.27rem; }
.step-card p { margin: 0; font-size: .86rem; }

.method-callout { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; margin-top: 25px; padding: 25px 30px; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-md); background: rgba(255,255,255,.055); }
.method-callout-icon { display: grid; width: 54px; height: 54px; place-items: center; border-radius: 50%; color: #d6922b; background: var(--warm-100); }
.method-callout strong { display: block; margin-bottom: 3px; color: var(--white); }
.method-callout p { margin: 0; font-size: .84rem; }
.method-callout a { color: var(--white); font-size: .85rem; font-weight: 750; text-decoration: none; }
.method-callout a span { margin-left: 5px; color: var(--teal-500); }

.about { background: var(--paper); }
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 105px; }
.about-visual { position: relative; padding: 0 30px 35px 0; }
.about-visual::before { position: absolute; right: 0; bottom: 0; width: 78%; height: 75%; content: ""; border-radius: var(--radius-md); background: var(--teal-100); }
.portrait-frame { position: relative; overflow: hidden; aspect-ratio: 4 / 5; border-radius: 190px 190px 28px 28px; box-shadow: var(--shadow-lg); }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; object-position: center 28%; }
.experience-seal { position: absolute; z-index: 2; top: 15%; right: -11px; display: grid; width: 132px; height: 132px; place-items: center; align-content: center; border: 8px solid var(--paper); border-radius: 50%; color: var(--white); background: var(--navy-900); box-shadow: var(--shadow-md); text-align: center; }
.experience-seal strong { margin-bottom: 2px; font-size: 2.25rem; line-height: 1; letter-spacing: -.06em; }
.experience-seal span { font-size: .67rem; line-height: 1.2; text-transform: uppercase; letter-spacing: .08em; }
.about-caption { position: relative; z-index: 2; display: flex; align-items: center; gap: 12px; margin: 19px 0 0 25px; }
.caption-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 0 6px rgba(18,165,148,.12); }
.about-caption div { display: grid; line-height: 1.25; }
.about-caption strong { font-size: .76rem; }
.about-caption small { color: var(--muted); font-size: .68rem; }
.about-copy h2 { margin-bottom: 30px; }
.about-copy > p { color: var(--muted); }
.about-copy .about-lead { color: var(--navy-800); font-size: 1.15rem; font-weight: 650; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; padding-top: 30px; border-top: 1px solid var(--line); }
.about-points > div { display: flex; gap: 12px; }
.about-points svg { flex: 0 0 24px; color: var(--teal-500); }
.about-points span { display: grid; }
.about-points strong { font-size: .86rem; }
.about-points small { margin-top: 3px; color: var(--muted); font-size: .72rem; }

.credentials { background: var(--cream); }
.credentials-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.credential-panel { padding: 42px; border: 1px solid rgba(16,42,67,.08); border-radius: var(--radius-md); background: var(--white); box-shadow: var(--shadow-sm); }
.panel-heading { display: flex; align-items: center; gap: 17px; margin-bottom: 36px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.panel-icon { display: grid; flex: 0 0 56px; width: 56px; height: 56px; place-items: center; border-radius: 16px; color: var(--blue-500); background: #e7f3f7; }
.panel-icon-warm { color: #b97412; background: var(--warm-100); }
.panel-heading p { margin: 0 0 4px; color: var(--blue-500); font-size: .67rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.panel-heading h3 { margin: 0; font-size: 1.3rem; }
.credential-list, .experience-list { margin: 0; padding: 0; list-style: none; }
.credential-list li { display: grid; grid-template-columns: 52px 1fr; gap: 16px; padding: 17px 0; border-top: 1px solid #edf0f1; }
.credential-list li:first-child { padding-top: 0; border-top: 0; }
.credential-list li > span { color: var(--blue-500); font-size: .7rem; font-weight: 800; }
.credential-list li div, .experience-list li div { display: grid; }
.credential-list strong { font-size: .84rem; line-height: 1.4; }
.credential-list small { margin-top: 4px; color: var(--muted); font-size: .7rem; }
.panel-note { margin: 25px 0 0; padding: 18px 20px; border-radius: 12px; color: #6a541e; background: #fff8e9; font-size: .74rem; }
.experience-list { position: relative; }
.experience-list::before { position: absolute; top: 9px; bottom: 9px; left: 6px; width: 1px; content: ""; background: #cbd6da; }
.experience-list li { position: relative; display: grid; grid-template-columns: 13px 1fr; gap: 20px; padding: 0 0 27px; }
.experience-list li:last-child { padding-bottom: 0; }
.timeline-dot { position: relative; z-index: 1; width: 13px; height: 13px; margin-top: 5px; border: 3px solid var(--white); border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 0 1px var(--teal-500); }
.experience-list small { color: var(--blue-500); font-size: .67rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.experience-list strong { margin: 4px 0 7px; font-size: .88rem; line-height: 1.35; }
.experience-list p { margin: 0; color: var(--muted); font-size: .73rem; line-height: 1.55; }

.pricing { color: rgba(255,255,255,.7); background: var(--navy-900); }
.pricing-grid { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 75px; }
.pricing-copy h2 { margin-bottom: 25px; color: var(--white); }
.pricing-copy > p { max-width: 420px; }
.pricing-includes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 35px; }
.pricing-includes span { display: flex; align-items: center; gap: 8px; font-size: .75rem; }
.pricing-includes svg { width: 17px; color: var(--teal-500); stroke-width: 2.4; }
.price-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.price-card { position: relative; overflow: hidden; padding: 38px; border-radius: var(--radius-md); color: var(--muted); background: var(--white); box-shadow: var(--shadow-lg); }
.price-card::before { position: absolute; top: 0; right: 0; width: 100px; height: 6px; content: ""; background: var(--teal-500); }
.price-card-accent::before { background: var(--warm-500); }
.price-level { margin-bottom: 23px; color: var(--blue-500); font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 23px; }
.price strong { color: var(--navy-950); font-size: 3.6rem; line-height: 1; letter-spacing: -.07em; }
.price span { color: var(--muted); font-size: .8rem; }
.price-card > p:nth-of-type(2) { min-height: 105px; font-size: .82rem; }
.button-dark { width: 100%; color: var(--white); background: var(--navy-900); }
.button-dark:hover { background: var(--blue-500); }

.faq { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 110px; }
.faq-intro { position: sticky; top: 130px; align-self: start; }
.faq-intro h2 { margin-bottom: 20px; }
.faq-intro > p:not(.kicker) { color: var(--muted); }
.text-link { display: inline-flex; gap: 7px; margin-top: 12px; color: var(--blue-500); font-size: .85rem; font-weight: 800; text-decoration: none; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 27px 0; color: var(--navy-900); font-size: 1rem; font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { position: relative; flex: 0 0 34px; width: 34px; height: 34px; border: 1px solid #cdd8dc; border-radius: 50%; }
.faq-list summary span::before, .faq-list summary span::after { position: absolute; top: 50%; left: 50%; width: 12px; height: 1.5px; content: ""; background: var(--navy-900); transform: translate(-50%,-50%); transition: transform .2s ease; }
.faq-list summary span::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-list details[open] summary span::after { transform: translate(-50%,-50%) rotate(0deg); }
.faq-list details[open] summary { padding-bottom: 14px; color: var(--blue-500); }
.faq-list details p { margin: 0; padding: 0 56px 27px 0; color: var(--muted); font-size: .88rem; }

.final-cta { padding: 0 0 30px; background: var(--paper); }
.final-cta-inner { display: grid; grid-template-columns: 1.1fr auto; align-items: center; gap: 60px; padding: 65px 70px; border-radius: var(--radius-lg); color: rgba(255,255,255,.72); background: var(--navy-950); box-shadow: var(--shadow-lg); }
.light-eyebrow { color: var(--teal-500); border-color: rgba(255,255,255,.12); background: rgba(255,255,255,.05); }
.final-cta h2 { margin-bottom: 13px; color: var(--white); font-size: clamp(2rem, 3.5vw, 3.6rem); }
.final-cta p:last-child { margin-bottom: 0; }
.final-cta-actions { display: grid; justify-items: center; gap: 12px; }
.button-whatsapp { color: var(--navy-950); background: var(--whatsapp); box-shadow: 0 15px 35px rgba(37, 211, 102, .2); }
.button-whatsapp:hover { background: #48df7f; }
.phone-link { color: var(--white); font-size: .84rem; font-weight: 800; text-decoration: none; }

.site-footer { padding: 28px 0; background: var(--paper); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 45px; }
.brand-footer .brand-mark { width: 42px; height: 42px; border-radius: 13px; }
.footer-inner > p { margin: 0; color: var(--muted); font-size: .7rem; }

.floating-whatsapp {
  position: fixed;
  z-index: 90;
  right: 24px;
  bottom: 23px;
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 51px;
  padding: 0 18px;
  border: 2px solid var(--white);
  border-radius: 999px;
  color: #073c20;
  background: var(--whatsapp);
  box-shadow: 0 15px 40px rgba(8,28,44,.22);
  font-size: .78rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease;
}

.floating-whatsapp:hover { background: #48df7f; transform: translateY(-4px); }
.floating-whatsapp svg { width: 23px; }

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1);
}

.js .reveal.is-visible { opacity: 1; transform: translateY(0); }
.js .reveal-delay-short { transition-delay: .08s; }
.js .reveal-delay { transition-delay: .16s; }
.js .reveal-delay-long { transition-delay: .24s; }

:focus-visible { outline: 3px solid rgba(29, 122, 155, .5); outline-offset: 4px; }

@media (max-width: 1080px) {
  .main-nav { gap: 18px; }
  .main-nav > a { font-size: .78rem; }
  .main-nav > a:nth-child(4), .main-nav > a:nth-child(5) { display: none; }
  .hero-grid { gap: 48px; }
  .photo-frame, .photo-frame > img { min-height: 560px; }
  .photo-badge-top { left: 16px; }
  .trust-strip > div { padding: 18px; }
  .levels-panel { gap: 50px; padding: 55px; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .step-card { min-height: 290px; }
  .about-grid { gap: 65px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-copy { max-width: 650px; }
}

@media (max-width: 820px) {
  .container { width: min(100% - 36px, var(--container)); }
  .section { padding: 90px 0; }
  .header-inner { min-height: 76px; }
  .menu-toggle { position: relative; z-index: 2; display: grid; width: 44px; height: 44px; padding: 11px; border: 1px solid rgba(16,42,67,.1); border-radius: 12px; background: rgba(255,255,255,.7); cursor: pointer; }
  .menu-toggle > span:not(.sr-only) { display: block; width: 100%; height: 2px; margin-block: 2px; border-radius: 2px; background: var(--navy-900); transition: transform .2s ease, opacity .2s ease; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] > span:nth-child(3) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(4) { transform: translateY(-6px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 0; display: flex; flex-direction: column; align-items: stretch; justify-content: center; gap: 0; padding: 100px 28px 45px; background: rgba(255,253,250,.98); opacity: 0; pointer-events: none; transform: translateY(-12px); transition: opacity .25s ease, transform .25s ease; }
  .main-nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .main-nav > a, .main-nav > a:nth-child(4), .main-nav > a:nth-child(5) { display: block; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .main-nav > a:not(.nav-cta)::after { display: none; }
  .main-nav .nav-cta { margin-top: 24px; padding: 15px 20px; border-bottom: 0; text-align: center; }
  .hero { padding-top: 125px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 700px; }
  .hero-visual { width: min(600px, 90%); margin: 10px auto 0; }
  .photo-frame { border-radius: 170px 170px 30px 30px; }
  .trust-strip { grid-template-columns: 1fr 1fr; }
  .trust-strip > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .trust-strip > div:nth-child(4) { border-top: 1px solid var(--line); }
  .subject-grid { grid-template-columns: 1fr; }
  .subject-card { min-height: 295px; }
  .subject-icon { margin-bottom: 40px; }
  .levels-panel { grid-template-columns: 1fr; }
  .levels-intro, .faq-intro { position: static; }
  .split-heading { grid-template-columns: 1fr; gap: 25px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { width: min(520px, 92%); margin: 0 auto; }
  .credentials-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 40px; }
  .final-cta-inner { grid-template-columns: 1fr; padding: 55px; text-align: center; }
  .final-cta .eyebrow { margin-inline: auto; }
  .footer-inner { grid-template-columns: 1fr; justify-items: center; gap: 16px; text-align: center; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .container { width: min(100% - 28px, var(--container)); }
  .section { padding: 74px 0; }
  .brand-copy small { display: none; }
  .brand-mark { width: 43px; height: 43px; border-radius: 13px; }
  .hero { padding-top: 112px; }
  .hero h1 { font-size: clamp(2.75rem, 14vw, 4.1rem); }
  .hero-lead { font-size: 1.04rem; }
  .hero-tags { display: grid; }
  .hero-tags span + span { padding-left: 0; border-left: 0; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .hero-visual { width: 100%; }
  .photo-frame, .photo-frame > img { min-height: 465px; }
  .photo-frame { border-radius: 120px 120px 25px 25px; }
  .photo-badge { min-width: 164px; padding: 10px 12px; }
  .photo-badge-top { top: 24%; left: 10px; }
  .photo-badge-bottom { right: 10px; bottom: 17px; }
  .badge-icon { flex-basis: 36px; width: 36px; height: 36px; }
  .formula { display: none; }
  .trust-strip { grid-template-columns: 1fr; margin-top: 55px; border-radius: 18px 18px 0 0; }
  .trust-strip > div { min-height: 92px; padding: 18px 24px; }
  .trust-strip > div + div, .trust-strip > div:nth-child(3) { border-top: 1px solid var(--line); border-left: 0; }
  .section-heading { margin-bottom: 42px; }
  .subject-card { padding: 30px; }
  .levels-panel { gap: 25px; margin-top: 60px; padding: 33px 25px; }
  .level-item { grid-template-columns: 45px 1fr; gap: 13px; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { min-height: auto; }
  .step-icon { margin-bottom: 42px; }
  .method-callout { grid-template-columns: auto 1fr; padding: 22px; }
  .method-callout a { grid-column: 1 / -1; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.1); }
  .about-visual { width: 100%; padding-right: 20px; }
  .experience-seal { right: -5px; width: 112px; height: 112px; }
  .about-points { grid-template-columns: 1fr; }
  .credential-panel { padding: 30px 23px; }
  .panel-heading { align-items: flex-start; }
  .price-cards { grid-template-columns: 1fr; }
  .price-card { padding: 32px 27px; }
  .price-card > p:nth-of-type(2) { min-height: auto; }
  .pricing-includes { grid-template-columns: 1fr; }
  .faq-list summary { font-size: .92rem; }
  .faq-list details p { padding-right: 15px; }
  .final-cta { padding-bottom: 15px; }
  .final-cta-inner { padding: 42px 24px; border-radius: 24px; }
  .final-cta-actions, .final-cta-actions .button { width: 100%; }
  .floating-whatsapp { right: 14px; bottom: 14px; width: 54px; height: 54px; min-height: 54px; padding: 0; justify-content: center; }
  .floating-whatsapp span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .js .reveal { opacity: 1; transform: none; }
}