:root {
  --ife-primary: #26BAA5;
  --ife-primary-dark: #168F80;
  --ife-secondary: #375F7A;
  --ife-secondary-dark: #28475C;
  --ife-background: #F5F8F9;
  --ife-surface: #FFFFFF;
  --ife-text: #263238;
  --ife-muted: #6B7780;
  --ife-border: #DDE6E8;
  --ife-danger: #DC3545;
  --ife-warning: #F0AD4E;
  --ife-success: #28A745;
  --ife-radius-sm: 10px;
  --ife-radius: 18px;
  --ife-radius-lg: 28px;
  --ife-shadow: 0 12px 34px rgba(38, 50, 56, .08);
  --ife-shadow-hover: 0 18px 45px rgba(38, 50, 56, .13);
  --ife-container: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--ife-background);
  color: var(--ife-text);
  font: 400 1rem/1.65 Inter, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(38, 186, 165, .55); outline-offset: 3px; }
.container { width: min(calc(100% - 2rem), var(--ife-container)); margin-inline: auto; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 999; transform: translateY(-150%); padding: .75rem 1rem; border-radius: 8px; background: var(--ife-secondary); color: #fff; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid transparent; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); transition: box-shadow .2s, border-color .2s; }
.site-header.scrolled { border-color: var(--ife-border); box-shadow: 0 6px 25px rgba(38,50,56,.07); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { flex: 0 0 120px; }
.brand img { width: 118px; max-height: 62px; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: .35rem; }
.main-nav a { min-height: 44px; display: inline-flex; align-items: center; padding: .55rem .85rem; border-radius: var(--ife-radius-sm); color: var(--ife-secondary-dark); font-weight: 650; text-decoration: none; }
.main-nav a:hover { background: #EDF7F6; color: var(--ife-primary-dark); }
.main-nav .nav-cta { margin-left: .35rem; gap: .5rem; background: var(--ife-secondary); color: #fff; }
.main-nav .nav-cta:hover { background: var(--ife-secondary-dark); color: #fff; }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 11px; border: 1px solid var(--ife-border); border-radius: 12px; background: var(--ife-surface); cursor: pointer; }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 5px 0; border-radius: 4px; background: var(--ife-secondary); transition: transform .2s, opacity .2s; }

.hero { position: relative; isolation: isolate; padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem); background: var(--ife-surface); overflow: hidden; }
.hero::before { content: ""; position: absolute; z-index: -1; width: 34rem; height: 34rem; top: -18rem; right: -10rem; border-radius: 50%; background: #E4F7F4; }
.hero::after { content: ""; position: absolute; z-index: -1; width: 22rem; height: 22rem; bottom: -15rem; left: -8rem; border-radius: 50%; border: 4rem solid #EFF3F6; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr); align-items: center; gap: clamp(2.5rem, 7vw, 6rem); }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; color: var(--ife-primary-dark); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero h1 { max-width: 700px; margin: .9rem 0 1.25rem; font-size: clamp(2.5rem, 6vw, 4.75rem); line-height: 1.05; letter-spacing: -.045em; color: var(--ife-secondary-dark); }
.hero-copy > p { max-width: 640px; margin: 0 0 1.75rem; color: var(--ife-muted); font-size: clamp(1.05rem, 2vw, 1.22rem); }
.button-row { display: flex; flex-wrap: wrap; gap: .8rem; }
.btn { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: .55rem; padding: .75rem 1.15rem; border: 2px solid transparent; border-radius: 12px; font-weight: 750; line-height: 1.2; text-decoration: none; transition: transform .18s, box-shadow .18s, background .18s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ife-primary); color: #0E3833; box-shadow: 0 9px 22px rgba(38,186,165,.22); }
.btn-primary:hover { background: #31C8B2; }
.btn-secondary { border-color: var(--ife-secondary); background: transparent; color: var(--ife-secondary); }
.btn-secondary:hover { background: var(--ife-secondary); color: #fff; }
.hero-points { display: flex; flex-wrap: wrap; gap: .7rem 1.2rem; margin: 1.6rem 0 0; padding: 0; list-style: none; color: var(--ife-muted); font-size: .9rem; }
.hero-points i { margin-right: .35rem; color: var(--ife-primary-dark); }
.hero-panel { position: relative; min-height: 430px; padding: 2rem; border: 1px solid var(--ife-border); border-radius: var(--ife-radius-lg); background: linear-gradient(150deg, #fff, #F0FAF8); box-shadow: var(--ife-shadow-hover); }
.hero-mark { width: 190px; height: 190px; display: grid; place-items: center; margin: .5rem auto 1.5rem; border-radius: 50%; background: #fff; box-shadow: 0 15px 45px rgba(55,95,122,.12); }
.hero-mark img { width: 150px; }
.hero-stat { display: flex; align-items: center; gap: .75rem; margin-top: .7rem; padding: .75rem 1rem; border: 1px solid var(--ife-border); border-radius: 13px; background: rgba(255,255,255,.9); color: var(--ife-secondary); font-weight: 700; }
.hero-stat i { width: 26px; text-align: center; color: var(--ife-primary-dark); font-size: 1.15rem; }
.hero-stat-main { justify-content: center; border: 0; background: var(--ife-secondary); color: #fff; text-align: left; }
.hero-stat-main strong { font-size: 2.1rem; line-height: 1; color: var(--ife-primary); }

.section { padding: clamp(4.5rem, 8vw, 7rem) 0; }
.tools-section { background: var(--ife-background); }
.soft-section { background: #EAF3F5; }
.section-heading { max-width: 720px; margin: 0 auto clamp(2rem, 5vw, 3.5rem); text-align: center; }
.section-heading h2, .author-copy h2, .social-box h2 { margin: .55rem 0 .8rem; color: var(--ife-secondary-dark); font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.13; letter-spacing: -.035em; }
.section-heading p, .social-box p { margin: 0; color: var(--ife-muted); font-size: 1.05rem; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 2rem; text-align: left; }
.split-heading p { padding-bottom: .5rem; }
.tool-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; }
.tool-card { min-height: 305px; display: flex; flex-direction: column; align-items: flex-start; padding: 1.35rem; border: 1px solid var(--ife-border); border-radius: var(--ife-radius); background: var(--ife-surface); transition: transform .2s, box-shadow .2s, border-color .2s; }
.tool-card:hover { transform: translateY(-5px); border-color: rgba(38,186,165,.6); box-shadow: var(--ife-shadow); }
.tool-icon { width: 50px; height: 50px; display: grid; place-items: center; margin-bottom: 1.2rem; border-radius: 14px; color: var(--ife-secondary); font-size: 1.3rem; background: #E4F7F4; }
.tool-icon.plan { background: #EDF2F8; }
.tool-icon.docs { background: #FFF0F0; color: #B84242; }
.tool-icon.notes { background: #F4EEFA; color: #765196; }
.tool-icon.focus { background: #EAF6E8; color: #397C4A; }
.tool-icon.memory { background: #FFF5E5; color: #A76617; }
.tag { color: var(--ife-primary-dark); font-size: .72rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.tool-card h3 { margin: .25rem 0 .45rem; color: var(--ife-secondary-dark); font-size: 1.2rem; line-height: 1.25; }
.tool-card p { margin: 0 0 1rem; color: var(--ife-muted); font-size: .9rem; line-height: 1.55; }
.tool-card a { margin-top: auto; color: var(--ife-secondary); font-size: .9rem; font-weight: 800; text-underline-offset: 4px; }
.tool-card a:hover { color: var(--ife-primary-dark); }
.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.benefit-grid article { position: relative; padding: 1.7rem; border-radius: var(--ife-radius); background: rgba(255,255,255,.75); }
.benefit-grid article > span { position: absolute; top: 1.2rem; right: 1.4rem; color: #B9CACC; font-size: .8rem; font-weight: 800; }
.benefit-grid i { color: var(--ife-primary-dark); font-size: 1.6rem; }
.benefit-grid h3 { margin: 1rem 0 .35rem; color: var(--ife-secondary-dark); }
.benefit-grid p { margin: 0; color: var(--ife-muted); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.service-card { padding: 2rem; border: 1px solid var(--ife-border); border-radius: var(--ife-radius); background: var(--ife-surface); box-shadow: 0 8px 28px rgba(38,50,56,.05); }
.service-card.featured { border-top: 5px solid var(--ife-primary); padding-top: calc(2rem - 4px); }
.service-card > i { color: var(--ife-primary-dark); font-size: 1.75rem; }
.service-card h3 { margin: 1rem 0 .4rem; color: var(--ife-secondary-dark); }
.service-card p { color: var(--ife-muted); }
.service-card ul { margin: 1.2rem 0 0; padding: 1rem 0 0 1.2rem; border-top: 1px solid var(--ife-border); }
.service-card li { margin: .35rem 0; }
.inline-cta { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 1.5rem; padding: 1.6rem 2rem; border-radius: var(--ife-radius); background: var(--ife-secondary-dark); color: #fff; }
.inline-cta h3 { margin: .25rem 0 0; font-size: clamp(1.25rem, 2vw, 1.6rem); }

.author-section { padding-bottom: 0; background: var(--ife-surface); }
.author-grid { display: grid; grid-template-columns: minmax(260px, .8fr) 1.2fr; align-items: center; gap: clamp(2rem, 7vw, 6rem); }
.author-photo { align-self: end; max-width: 420px; margin-inline: auto; }
.author-photo img { max-height: 560px; object-fit: contain; object-position: bottom; }
.author-copy { max-width: 640px; padding-block: 3rem; }
.author-copy .lead { color: var(--ife-secondary); font-size: 1.22rem; font-weight: 700; }
.author-copy p:not(.lead) { color: var(--ife-muted); }
.text-link { display: inline-flex; gap: .5rem; margin-top: .8rem; color: var(--ife-primary-dark); font-weight: 800; text-underline-offset: 4px; }
.social-section { background: var(--ife-secondary-dark); color: #fff; }
.social-box { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 3rem; }
.social-box h2 { color: #fff; }
.social-box p { color: #CFDCE3; }
.social-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; }
.social-links a { min-height: 66px; display: flex; align-items: center; gap: .8rem; padding: 1rem; border: 1px solid rgba(255,255,255,.18); border-radius: 14px; background: rgba(255,255,255,.06); text-decoration: none; font-weight: 750; transition: background .2s, transform .2s; }
.social-links a:hover { transform: translateY(-2px); background: rgba(38,186,165,.18); }
.social-links i { width: 28px; color: var(--ife-primary); font-size: 1.35rem; text-align: center; }

.site-footer { padding: 4rem 0 1.4rem; background: #1E313D; color: #C3D0D6; }
.footer-grid { display: grid; grid-template-columns: 1.6fr .7fr .7fr; gap: 3rem; }
.footer-brand img { width: 160px; padding: .5rem; border-radius: 10px; background: #fff; }
.footer-brand p { max-width: 390px; }
.footer-grid h2 { margin: 0 0 1rem; color: #fff; font-size: .95rem; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; }
.footer-grid a { min-height: 40px; display: inline-flex; align-items: center; color: #C3D0D6; text-decoration: none; }
.footer-grid a:hover, .footer-bottom a:hover { color: var(--ife-primary); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2.5rem; padding-top: 1.3rem; border-top: 1px solid rgba(255,255,255,.1); font-size: .85rem; }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: #C3D0D6; }
.whatsapp-fab { position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 80; width: 58px; height: 58px; display: grid; place-items: center; border: 3px solid #fff; border-radius: 50%; background: #25D366; color: #fff; box-shadow: 0 10px 28px rgba(21,93,54,.3); font-size: 1.8rem; text-decoration: none; transition: transform .2s; }
.whatsapp-fab:hover { transform: translateY(-4px) scale(1.03); }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .tool-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-grid { grid-template-columns: 1fr .8fr; gap: 2rem; }
}
@media (max-width: 800px) {
  .menu-toggle { display: block; z-index: 2; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 76px 0 auto; display: none; max-height: calc(100vh - 76px); overflow-y: auto; padding: 1rem; border-top: 1px solid var(--ife-border); background: #fff; box-shadow: 0 18px 30px rgba(38,50,56,.12); }
  .main-nav.open { display: flex; flex-direction: column; align-items: stretch; }
  .main-nav a { width: 100%; padding: .75rem 1rem; }
  .main-nav .nav-cta { margin: .35rem 0 0; justify-content: center; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-panel { width: min(100%, 520px); min-height: auto; margin-inline: auto; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .split-heading, .author-grid, .social-box { grid-template-columns: 1fr; }
  .split-heading { gap: .5rem; }
  .service-grid { grid-template-columns: 1fr; }
  .inline-cta { align-items: flex-start; flex-direction: column; }
  .author-copy { padding-top: 0; }
  .author-photo { max-width: 330px; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: 1.5rem; }
}
@media (max-width: 620px) {
  .container { width: min(calc(100% - 1.25rem), var(--ife-container)); }
  .brand { flex-basis: 108px; }
  .brand img { width: 106px; max-height: 55px; }
  .header-inner { min-height: 70px; }
  .main-nav { inset-block-start: 70px; }
  .hero { padding-top: 3.6rem; }
  .hero h1 { font-size: clamp(2.25rem, 12vw, 3.3rem); }
  .button-row .btn { width: 100%; }
  .hero-points { display: grid; }
  .hero-panel { padding: 1.25rem; }
  .hero-mark { width: 150px; height: 150px; }
  .hero-mark img { width: 120px; }
  .tool-grid, .benefit-grid, .social-links, .footer-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 260px; }
  .section-heading { text-align: left; }
  .inline-cta { padding: 1.3rem; }
  .inline-cta .btn { width: 100%; }
  .social-box { gap: 2rem; }
  .footer-bottom { flex-direction: column; }
  .whatsapp-fab { right: .8rem; bottom: .8rem; width: 54px; height: 54px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}