:root {
  --blue-950: #072f55;
  --blue-900: #083a69;
  --blue-800: #0b4e89;
  --blue-700: #0b5ea8;
  --blue-600: #1177c5;
  --blue-500: #2b8ed2;
  --blue-200: #b9e2f8;
  --blue-100: #eaf7fe;
  --blue-50: #f6fbff;
  --red-700: #d3262d;
  --red-600: #ea343b;
  --red-100: #fff1f2;
  --ink: #132236;
  --muted: #617184;
  --line: #dbe7f1;
  --white: #ffffff;
  --shadow-sm: 0 10px 35px rgba(7, 47, 85, 0.08);
  --shadow-md: 0 18px 55px rgba(7, 47, 85, 0.12);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--ink); background: var(--white); line-height: 1.6; }
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section-pad { padding: 110px 0; }
.section-light { background: var(--blue-50); }
.section-navy { background: var(--blue-950); color: var(--white); }
.skip-link { position: fixed; left: 12px; top: -100px; z-index: 1000; padding: 10px 14px; background: #fff; border-radius: 8px; box-shadow: var(--shadow-sm); }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); border-bottom: 1px solid rgba(219,231,241,.72); backdrop-filter: blur(16px); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; min-width: 0; }
.brand-logo { width: 48px; height: 48px; border-radius: 14px; object-fit: cover; box-shadow: 0 8px 25px rgba(11,94,168,.2); }
.brand-copy { display: flex; flex-direction: column; line-height: 1.05; white-space: nowrap; }
.brand-copy strong { font-size: 15px; letter-spacing: -.01em; }
.brand-copy small { margin-top: 5px; color: var(--red-700); font-size: 10px; font-weight: 800; letter-spacing: .13em; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { text-decoration: none; color: #36526d; font-size: 14px; font-weight: 700; }
.site-nav a:hover { color: var(--blue-700); }
.nav-cta { background: var(--blue-700); color: #fff !important; padding: 11px 15px; border-radius: 999px; box-shadow: 0 8px 24px rgba(11,94,168,.18); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; border-radius: 12px; background: var(--blue-100); padding: 10px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--blue-800); margin: 5px auto; border-radius: 4px; }

.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #f8fcff 0%, #eef8fe 48%, #ffffff 100%); min-height: 700px; display: flex; align-items: center; }
.hero:before { content: ""; position: absolute; width: 620px; height: 620px; border-radius: 50%; border: 1px solid rgba(11,94,168,.08); right: -250px; top: -180px; }
.hero:after { content: ""; position: absolute; width: 760px; height: 760px; border-radius: 50%; border: 1px solid rgba(234,52,59,.07); left: -410px; bottom: -490px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 55px; align-items: center; position: relative; z-index: 2; }
.eyebrow { color: var(--blue-700); font-size: 11px; text-transform: uppercase; font-weight: 900; letter-spacing: .16em; display: inline-flex; align-items: center; gap: 9px; }
.eyebrow-dot { width: 8px; height: 8px; background: var(--red-600); border-radius: 50%; box-shadow: 0 0 0 7px rgba(234,52,59,.08); }
.eyebrow-light { color: #9bdcff; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(48px, 5.4vw, 75px); line-height: 1.02; letter-spacing: -.055em; margin: 18px 0 22px; max-width: 760px; }
h1 span, h2 span { color: var(--red-700); }
.hero-lead { font-size: 18px; max-width: 650px; color: #4e6378; line-height: 1.78; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 18px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; text-decoration: none; border: 0; border-radius: 999px; padding: 14px 19px; font-weight: 900; font-size: 14px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--blue-700); color: #fff; box-shadow: 0 13px 30px rgba(11,94,168,.25); }
.btn-primary:hover { background: var(--blue-800); }
.btn-secondary { background: #fff; color: var(--blue-800); border: 1px solid var(--line); box-shadow: 0 9px 24px rgba(7,47,85,.06); }
.btn-white { background: #fff; color: var(--blue-900); box-shadow: 0 15px 35px rgba(0,0,0,.12); }
.btn-ghost-light { color: #fff; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.06); }
.hero-note { color: #668097; font-size: 13px; display: flex; gap: 8px; align-items: center; }
.check { color: var(--red-700); font-weight: 900; }
.hero-visual { position: relative; min-height: 505px; display: grid; place-items: center; }
.hero-card-main { width: min(440px, 87%); aspect-ratio: 1.08; border-radius: 44px; background: radial-gradient(circle at 70% 24%, rgba(43,142,210,.16), transparent 32%), linear-gradient(155deg, #ffffff 3%, #ecf8fe 100%); border: 1px solid rgba(11,94,168,.1); box-shadow: 0 30px 90px rgba(11,94,168,.16); padding: 40px; transform: rotate(-4deg); position: relative; overflow: hidden; }
.hero-card-main:after { content: "SCIENCE"; position: absolute; right: -35px; bottom: -15px; font-weight: 1000; letter-spacing: -.06em; font-size: 90px; color: rgba(11,94,168,.05); transform: rotate(-7deg); }
.card-kicker { color: var(--red-700); font-size: 12px; font-weight: 1000; letter-spacing: .18em; }
.hero-card-title { font-size: 34px; line-height: 1.04; letter-spacing: -.04em; font-weight: 900; margin-top: 18px; max-width: 300px; position: relative; z-index: 1; }
.hero-card-footer { position: absolute; left: 40px; right: 40px; bottom: 34px; display: flex; justify-content: space-between; color: #5b7187; font-weight: 800; font-size: 12px; position: absolute; z-index: 1; }
.hero-card-float { position: absolute; display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(7,47,85,.14); border-radius: 16px; padding: 14px 16px; min-width: 230px; }
.hero-card-float strong, .hero-card-float small { display: block; }
.hero-card-float strong { font-size: 13px; }
.hero-card-float small { color: #728497; font-size: 11px; margin-top: 3px; }
.float-one { top: 57px; right: -5px; }
.float-two { bottom: 70px; left: -6px; }
.mini-icon { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; color: var(--blue-700); background: var(--blue-100); font-weight: 1000; }
.mini-icon.red { color: var(--red-700); background: var(--red-100); }
.orbit { position: absolute; border: 1px dashed rgba(11,94,168,.22); border-radius: 50%; }
.orbit-a { width: 480px; height: 480px; }
.orbit-b { width: 565px; height: 565px; border-color: rgba(234,52,59,.12); }
.science-dots { position: absolute; left: 10%; top: 15%; display: grid; grid-template-columns: repeat(3, 7px); gap: 7px; transform: rotate(18deg); }
.science-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue-500); opacity: .42; }
.hero-wave { position: absolute; bottom: -1px; left: 0; right: 0; height: 80px; background: #fff; clip-path: polygon(0 52%, 5% 57%, 10% 55%, 15% 61%, 20% 58%, 25% 66%, 30% 57%, 35% 65%, 40% 61%, 45% 68%, 50% 60%, 55% 70%, 60% 62%, 65% 67%, 70% 58%, 75% 66%, 80% 56%, 85% 62%, 90% 56%, 95% 60%, 100% 53%, 100% 100%, 0 100%); }

.trust-strip { background: #fff; border-top: 1px solid #eef4f8; border-bottom: 1px solid #eef4f8; }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; }
.trust-grid > div { padding: 22px 30px; border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; text-align: center; }
.trust-grid > div:first-child { border-left: 1px solid var(--line); }
.trust-grid strong { font-size: 24px; line-height: 1; color: var(--blue-700); }
.trust-grid span { margin-top: 6px; color: #6b7e90; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }

.section-heading { max-width: 720px; }
.section-heading.centered { text-align: center; margin: 0 auto 46px; }
.section-heading.centered p { margin-inline: auto; }
.section-heading h2, .why-copy h2, .request-intro h2, .final-cta h2 { font-size: clamp(36px, 4vw, 56px); line-height: 1.07; letter-spacing: -.045em; margin: 12px 0 16px; }
.section-heading p { color: var(--muted); max-width: 650px; font-size: 16px; }
.split-heading { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 46px; }
.split-heading > p { max-width: 420px; margin-bottom: 3px; }

.units-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.unit-card { position: relative; min-height: 220px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); overflow: hidden; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; display: flex; flex-direction: column; }
.unit-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #bed9eb; }
.unit-card:before { content: ""; position: absolute; width: 120px; height: 120px; border-radius: 50%; background: rgba(11,94,168,.05); right: -35px; top: -35px; }
.unit-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--blue-100); color: var(--blue-700); font-weight: 1000; font-size: 22px; margin-bottom: 18px; }
.unit-card h3 { font-size: 18px; line-height: 1.18; margin-bottom: 8px; letter-spacing: -.02em; }
.unit-card p { color: var(--muted); font-size: 13px; line-height: 1.65; margin-bottom: 22px; }
.text-link { border: 0; background: transparent; padding: 0; color: var(--blue-700); font-size: 12px; font-weight: 950; display: inline-flex; align-items: center; gap: 7px; width: fit-content; }
.text-link:hover { color: var(--red-700); }
.unit-card .text-link { margin-top: auto; }
.unit-biology .unit-icon { background: #eefbf3; color: #1f7a49; }
.unit-physics .unit-icon { background: #f3efff; color: #694fb2; }
.unit-chemistry .unit-icon { background: #fff4ea; color: #b15c16; }
.unit-maths .unit-icon { background: #fff1f2; color: var(--red-700); }
.unit-is .unit-icon { background: #edf4ff; color: #3964ba; }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.service-card { border: 1px solid var(--line); border-radius: 22px; padding: 26px; min-height: 285px; display: flex; flex-direction: column; background: #fff; position: relative; transition: transform .2s ease, box-shadow .2s ease; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.service-card.featured { background: linear-gradient(150deg, #f6fbff, #ffffff); border-color: #b7dff6; }
.service-card.featured-alt { background: linear-gradient(150deg, #fff8f9, #ffffff); border-color: #f2c6c9; }
.service-index { position: absolute; top: 20px; right: 22px; color: #a5b7c7; font-weight: 900; font-size: 12px; }
.service-icon { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; background: var(--blue-100); color: var(--blue-700); font-weight: 1000; font-size: 20px; }
.service-card h3 { margin: 18px 0 8px; font-size: 18px; letter-spacing: -.02em; }
.service-card p { color: var(--muted); font-size: 13px; line-height: 1.65; }
.service-bottom { margin-top: auto; padding-top: 18px; border-top: 1px solid #edf3f7; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.service-bottom strong { color: var(--blue-800); font-size: 13px; }

.why-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.why-copy p { color: #b9cad8; max-width: 560px; font-size: 16px; }
.why-copy h2 span { color: #ff6d73; }
.why-list { display: grid; gap: 14px; }
.why-item { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 20px; border-radius: 18px; border: 1px solid rgba(255,255,255,.11); background: rgba(255,255,255,.035); }
.why-item > span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; color: #9fddff; background: rgba(155,220,255,.1); font-weight: 900; font-size: 12px; }
.why-item h3 { font-size: 16px; margin-bottom: 4px; }
.why-item p { margin: 0; color: #b3c5d4; font-size: 13px; line-height: 1.65; }

.steps-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.step { padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.step-number { font-size: 11px; color: var(--red-700); font-weight: 950; letter-spacing: .1em; margin-bottom: 38px; }
.step h3 { font-size: 17px; margin-bottom: 7px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; }

.pricing-heading { margin-bottom: 34px; }
.price-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.price-card-top { padding: 20px 20px 14px; display: flex; align-items: center; justify-content: space-between; gap: 14px; font-weight: 900; font-size: 15px; }
.price-chip { display: inline-flex; align-items: center; padding: 6px 9px; border-radius: 999px; background: var(--red-100); color: var(--red-700); font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.price-chip.blue { background: var(--blue-100); color: var(--blue-700); }
.price-chip.red { background: var(--red-100); color: var(--red-700); }
.price-card ul { list-style: none; padding: 0 20px 18px; margin: 0; }
.price-card li { display: flex; justify-content: space-between; gap: 14px; padding: 11px 0; border-top: 1px solid #eef3f7; color: #536a80; font-size: 13px; }
.price-card li strong { color: var(--blue-900); white-space: nowrap; }
.completion-card { background: linear-gradient(150deg, #f6fbff, #ffffff); }
.pricing-note { margin: 14px 0 0; color: #687887; font-size: 12px; line-height: 1.55; }
.pricing-note strong { color: var(--blue-900); }
.guide-service-note { margin-top: 14px; padding: 12px 14px; border-radius: 14px; background: #eef8ff; border: 1px solid #d3e9f8; color: #486174; font-size: .88rem; line-height: 1.55; }
.guide-service-note strong { color: #0b5ea8; }
.package-banner { margin-top: 18px; padding: 26px; border-radius: 24px; color: #fff; background: linear-gradient(135deg, var(--blue-900), var(--blue-700)); display: flex; justify-content: space-between; align-items: center; gap: 20px; box-shadow: 0 24px 55px rgba(8,58,105,.18); }
.package-label { font-size: 10px; font-weight: 950; letter-spacing: .14em; color: #a8e1ff; }
.package-banner h3 { font-size: 24px; line-height: 1.1; margin: 7px 0 6px; letter-spacing: -.02em; }
.package-banner p { margin: 0; color: #b9cad7; font-size: 13px; }

.cta-section { background: radial-gradient(circle at 78% 50%, rgba(43,142,210,.10), transparent 30%), #f8fcff; }
.request-wrap { display: grid; grid-template-columns: .68fr 1.32fr; gap: 44px; align-items: start; }
.request-intro { position: sticky; top: 110px; }
.request-intro p { color: var(--muted); max-width: 470px; }
.request-highlights { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0; }
.request-highlights span { padding: 7px 10px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: #526a80; font-size: 11px; font-weight: 900; }
.quick-whatsapp { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--blue-700); font-size: 12px; font-weight: 900; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow-md); padding: 28px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 17px; }
.field.full { grid-column: 1 / -1; }
.field label { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 900; color: #2a4158; }
.field label span { color: var(--red-700); }
.field input, .field select, .field textarea { width: 100%; border: 1px solid #d8e5ef; border-radius: 13px; outline: none; background: #fbfdff; color: var(--ink); padding: 13px 13px; font-size: 13px; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
.field textarea { resize: vertical; min-height: 130px; }
.field input::placeholder, .field textarea::placeholder { color: #a0adba; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(17,119,197,.1); background: #fff; }
.form-bottom { margin-top: 22px; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 18px; border-top: 1px solid #eef3f7; }
.form-note { color: #7b8a99; font-size: 11px; margin: 0; max-width: 420px; }
.btn-submit { border-radius: 13px; white-space: nowrap; }
.form-error { color: var(--red-700); font-size: 12px; margin: 12px 0 0; }

.faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 60px; align-items: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); padding: 3px 0; }
.faq-list summary { cursor: pointer; list-style: none; padding: 19px 4px; font-size: 15px; font-weight: 900; display: flex; justify-content: space-between; gap: 20px; }
.faq-list summary::-webkit-details-marker { display:none; }
.faq-list summary:after { content: "+"; color: var(--blue-700); font-size: 18px; font-weight: 500; }
.faq-list details[open] summary:after { content: "−"; }
.faq-list details p { color: var(--muted); font-size: 13px; padding: 0 4px 19px; max-width: 680px; margin: 0; }

.final-cta { background: var(--blue-950); color: #fff; }
.final-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.final-cta h2 { margin-bottom: 0; }
.final-cta h2 span { color: #ff7378; }
.final-cta-actions { display: flex; gap: 11px; flex-wrap: wrap; }

.site-footer { background: #051f38; color: #d8e6f2; padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.25fr .7fr .8fr; gap: 50px; }
.footer-brand { display: flex; align-items: flex-start; gap: 14px; }
.footer-brand img { width: 52px; height: 52px; border-radius: 14px; object-fit: cover; }
.footer-brand strong { color: #fff; font-size: 14px; display: block; }
.footer-brand p { color: #97afc2; font-size: 12px; max-width: 310px; margin-top: 5px; }
.footer-links { display: grid; grid-template-columns: repeat(2,1fr); gap: 11px 22px; align-content: start; }
.footer-links a { text-decoration: none; color: #a9bece; font-size: 12px; font-weight: 700; }
.footer-links a:hover { color: #fff; }
.footer-contact span { display: block; text-transform: uppercase; letter-spacing: .12em; color: #6d8ba5; font-size: 10px; font-weight: 950; margin-bottom: 7px; }
.footer-contact a { color: #fff; text-decoration: none; font-weight: 900; }
.footer-contact small { display: block; color: #7f9aae; font-size: 11px; margin-top: 7px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 40px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; }
.footer-bottom p { color: #6e879b; font-size: 10px; margin: 0; max-width: 680px; }

.floating-wa { position: fixed; right: 18px; bottom: 18px; z-index: 60; display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: #fff; background: var(--red-700); padding: 12px 14px; border-radius: 999px; box-shadow: 0 15px 35px rgba(211,38,45,.32); font-size: 12px; font-weight: 950; }
.floating-wa span:first-child { width: 20px; height: 20px; display:grid; place-items:center; border-radius: 50%; background: rgba(255,255,255,.12); }

@media (max-width: 1040px) {
  .site-nav { gap: 13px; }
  .site-nav a { font-size: 13px; }
  .hero-grid { gap: 30px; }
  .hero-card-float { min-width: 205px; }
  .units-grid, .services-grid { grid-template-columns: repeat(2,1fr); }
  .steps-grid { grid-template-columns: repeat(2,1fr); }
  .price-grid { grid-template-columns: repeat(2,1fr); }
  .why-grid { grid-template-columns: 1fr; gap: 36px; }
  .request-wrap { grid-template-columns: 1fr; }
  .request-intro { position: static; }
  .faq-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 78px 14px auto 14px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-md); display: none; flex-direction: column; align-items: stretch; gap: 4px; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 10px; }
  .nav-cta { text-align: center; margin-top: 6px; }
  .hero { min-height: unset; padding-top: 86px; }
  .price-grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions, .hero-note { justify-content: center; }
  .hero-visual { min-height: 430px; }
  .hero-card-main { width: min(420px, 86%); }
  .float-one { right: 3%; }
  .float-two { left: 3%; }
  .split-heading { flex-direction: column; align-items: start; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 620px) {
  .section-pad { padding: 78px 0; }
  h1 { font-size: 48px; }
  .section-heading h2, .why-copy h2, .request-intro h2, .final-cta h2 { font-size: 40px; }
  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .trust-grid > div { border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .units-grid, .services-grid, .steps-grid, .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .hero-card-float { min-width: 195px; padding: 12px; }
  .float-one { top: 36px; }
  .float-two { bottom: 30px; }
  .hero-visual { min-height: 390px; }
  .orbit-a { width: 360px; height: 360px; }
  .orbit-b { width: 430px; height: 430px; }
  .hero-card-title { font-size: 29px; }
  .form-bottom { flex-direction: column; align-items: stretch; }
  .btn-submit { width: 100%; }
  .package-banner { flex-direction: column; align-items: stretch; }
  .package-banner .btn { width: 100%; }
  .final-cta-inner { flex-direction: column; align-items: flex-start; }
  .floating-wa { right: 12px; bottom: 12px; }
  .floating-wa-text { display: none; }
  .footer-links { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *:before, *:after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
}

/* Project research guide */
.project-guide-section{background:linear-gradient(180deg,#f8fbff 0%,#eef7ff 100%);}
.guide-heading{align-items:end;margin-bottom:30px;}
.guide-feature-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;margin-bottom:22px;}
.guide-cover-card,.guide-rules-card{background:#fff;border:1px solid rgba(8,57,106,.09);box-shadow:0 18px 50px rgba(16,54,90,.08);border-radius:24px;overflow:hidden;}
.guide-cover-frame{position:relative;background:#dceefd;padding:18px;display:flex;justify-content:center;min-height:430px;align-items:center;}
.guide-cover-frame img{display:block;width:min(100%,310px);max-height:430px;object-fit:cover;border-radius:16px;box-shadow:0 18px 30px rgba(11,45,75,.22);transform:rotate(-1deg);}
.cover-badge{position:absolute;left:28px;top:28px;background:#c62e2f;color:#fff;font-size:.74rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:8px 12px;border-radius:999px;box-shadow:0 8px 18px rgba(198,46,47,.24);}
.guide-cover-copy{padding:22px 24px 25px;}
.guide-kicker{display:inline-block;color:#0b5ea8;font-size:.74rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;}
.guide-cover-copy h3{margin:0 0 8px;font-size:1.35rem;}
.guide-cover-copy p{margin:0;color:#5d6b78;line-height:1.7;}
.guide-rules-card{padding:14px;display:grid;gap:8px;align-content:center;}
.guide-rule{display:flex;gap:14px;align-items:flex-start;padding:16px 15px;border-radius:17px;background:#f7fbff;border:1px solid #e7f0f8;}
.guide-rule-icon{flex:0 0 48px;height:48px;border-radius:14px;display:grid;place-items:center;background:#0b5ea8;color:#fff;font-size:.78rem;font-weight:900;letter-spacing:.02em;}
.guide-rule:nth-child(2) .guide-rule-icon{background:#68bde8;}
.guide-rule:nth-child(3) .guide-rule-icon{background:#d64343;}
.guide-rule:nth-child(4) .guide-rule-icon{background:#183a61;}
.guide-rule:nth-child(5) .guide-rule-icon{background:#7ebfe8;color:#0b2e4e;}
.guide-rule strong{display:block;margin:2px 0 4px;font-size:.96rem;}
.guide-rule p{margin:0;color:#6c7883;line-height:1.55;font-size:.92rem;}
.guide-disclaimer{display:flex;gap:12px;align-items:flex-start;background:#fff6f0;border:1px solid #f2dccd;color:#65493b;border-radius:16px;padding:14px 16px;margin-bottom:22px;}
.guide-disclaimer>span{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#c62e2f;color:#fff;font-weight:900;flex:0 0 26px;}
.guide-disclaimer p{margin:2px 0 0;line-height:1.65;font-size:.9rem;}
.guide-accordion{display:grid;gap:10px;}
.guide-accordion details{background:#fff;border:1px solid rgba(8,57,106,.09);border-radius:18px;box-shadow:0 10px 26px rgba(16,54,90,.05);overflow:hidden;}
.guide-accordion summary{list-style:none;cursor:pointer;padding:18px 20px;display:flex;align-items:center;gap:15px;}
.guide-accordion summary::-webkit-details-marker{display:none;}
.guide-accordion summary::after{content:'+';margin-left:auto;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#edf6fd;color:#0b5ea8;font-size:1.2rem;line-height:1;transition:.2s ease;}
.guide-accordion details[open] summary::after{content:'−';background:#0b5ea8;color:#fff;}
.guide-summary-num{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:#eaf5fd;color:#0b5ea8;font-size:.82rem;font-weight:900;flex:0 0 44px;}
.guide-accordion details:nth-child(odd) .guide-summary-num{background:#fff1f1;color:#c62e2f;}
.guide-accordion summary strong{display:block;font-size:1rem;}
.guide-accordion summary small{display:block;color:#73808b;margin-top:3px;line-height:1.45;font-size:.84rem;}
.guide-content{padding:0 20px 22px 79px;color:#596773;line-height:1.7;font-size:.92rem;}
.guide-content h4{margin:15px 0 6px;color:#183a61;font-size:.97rem;}
.guide-content p{margin:0 0 10px;}
.guide-content ul,.guide-content ol{margin:8px 0 0;padding-left:22px;}
.guide-content li{margin-bottom:6px;}
.two-col-guide{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.heading-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:15px 0;}
.heading-grid>div{padding:12px 13px;border:1px solid #e7eef5;border-radius:12px;background:#fbfdff;}
.heading-grid b{color:#0b5ea8;margin-right:6px;}
.methodology-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
.guide-copy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px;}
.guide-copy-grid>div{padding:13px 14px;background:#f8fbfe;border-radius:13px;border:1px solid #eaf0f6;}
.guide-copy-grid>div.wide{grid-column:1/-1;}
.guide-copy-grid h4{margin:0 0 5px;}
.guide-note{margin-top:13px;padding:12px 14px;border-left:4px solid #c62e2f;background:#fff7f7;border-radius:10px;color:#614b4b;}
.checklist-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.checklist-grid>div{padding:13px 14px;border:1px dashed #ccddeb;border-radius:12px;background:#fbfdff;}
@media (max-width: 980px){.guide-feature-grid{grid-template-columns:1fr;}.guide-cover-frame{min-height:390px}.methodology-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width: 700px){.guide-cover-frame{min-height:330px}.guide-cover-frame img{max-height:320px;width:min(100%,250px)}.guide-cover-copy{padding:18px 18px 20px}.guide-rules-card{padding:10px}.guide-rule{padding:13px}.guide-summary-num{width:38px;height:38px;border-radius:12px;flex-basis:38px}.guide-content{padding:0 16px 18px 16px}.two-col-guide,.guide-copy-grid,.heading-grid,.checklist-grid,.methodology-grid{grid-template-columns:1fr}.guide-copy-grid>div.wide{grid-column:auto}.guide-accordion summary{padding:15px 14px;gap:11px}.guide-accordion summary small{max-width:90%;}.guide-disclaimer{padding:12px 13px}.project-guide-section .section-heading p{margin-top:8px;}}



/* WhatsApp brand icon system */
.whatsapp-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.whatsapp-icon { width: 18px; height: 18px; display: inline-block; flex: 0 0 18px; object-fit: contain; }
.whatsapp-icon-light { filter: brightness(0) invert(1); }
.nav-group .whatsapp-icon { width: 16px; height: 16px; flex-basis: 16px; filter: none; }
.btn-group .whatsapp-icon { width: 22px; height: 22px; flex-basis: 22px; }
.quick-whatsapp .whatsapp-icon { width: 18px; height: 18px; flex-basis: 18px; }
.field-help { display:block; margin-top:7px; color:#7b8a99; font-size:11px; line-height:1.45; }
.field-help strong { color:#3d5870; }

/* WhatsApp community / group CTA */
.nav-group {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 13px;
  border: 1px solid #c7ddeb;
  border-radius: 999px;
  text-decoration: none;
  color: var(--blue-800) !important;
  background: var(--blue-50);
  white-space: nowrap;
}
.nav-group:hover {
  background: var(--blue-100);
  border-color: #aacfe6;
}
.group-section {
  padding-top: 34px;
  padding-bottom: 34px;
  background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
}
.group-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 30px 34px;
  border: 1px solid #cfe3f1;
  border-radius: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #eef8ff 100%);
  box-shadow: var(--shadow-sm);
}
.group-banner-copy h2 {
  margin: 7px 0 8px;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -.03em;
  max-width: 650px;
}
.group-banner-copy p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}
.btn-group {
  background: var(--blue-700);
  color: #fff;
  box-shadow: 0 12px 28px rgba(11, 94, 168, .18);
  flex: 0 0 auto;
}
.btn-group:hover {
  background: var(--blue-800);
}
@media (max-width: 1040px) {
  .nav-group { font-size: 13px; }
}
@media (max-width: 840px) {
  .group-banner { flex-direction: column; align-items: flex-start; }
  .btn-group { width: 100%; }
}
@media (max-width: 720px) {
  .group-banner { padding: 24px; }
}