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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  background: #ffffff;
  color: #001f4a;
  font-family: Helvetica, Arial, sans-serif;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

ul {
  list-style: none;
}

/* Variables */
:root {
  --primary-blue: #084da3;
  --footer-blue: #0d3869;
  --white: #ffffff;
  --dark-text: #001f4a;
  --ink: #143453;
  --soft-bg: #f7f9fc;
  --line: rgba(8, 77, 163, .18);
  --blue-gradient: #084da3;
  --muted-white: rgba(255, 255, 255, .56);
  --container-width: 1176px;
  --font-main: Helvetica, Arial, sans-serif;
  --font-display: "Barlow", Arial, sans-serif;
}

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

/* Header */
.site-header {
  position: relative;
  z-index: 20;
  height: 82px;
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid rgba(8, 77, 163, .08);
  box-shadow: 0 4px 18px rgba(13, 56, 105, .06);
}

.header-content {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  padding-inline: 18px;
}

.brand {
  width: 158px;
  flex: 0 0 auto;
}

.brand img {
  width: 100%;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  transform: translateX(34px);
}

.main-nav a {
  position: relative;
  display: inline-flex;
  padding: 12px 0;
  color: var(--primary-blue);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  text-transform: uppercase;
  transition: color .2s ease;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a.is-active::after {
  transform: scaleX(1);
}

.main-nav a.is-active {
  color: #050505;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  margin: 4px 0;
  border-radius: 0;
  background: var(--primary-blue);
  transition: transform .2s ease, opacity .2s ease;
}

/* Hero */
.page-hero {
  padding-top: 86px;
}

.title-ribbon {
  display: flex;
  width: min(700px, calc(100% - 24px));
  min-height: 128px;
  align-items: center;
  padding: 22px 42px 22px max(24px, calc((100vw - var(--container-width)) / 2));
  border-radius: 0 8px 8px 0;
  background: var(--primary-blue);
  box-shadow: 9px 12px 20px rgba(13, 56, 105, .2);
}

.title-ribbon h1 {
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(34px, 3.5vw, 48px);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.hero-intro {
  padding: 48px 0 8px;
}

.hero-intro p {
  max-width: 760px;
  margin-inline: auto;
  color: var(--primary-blue);
  font-size: 18px;
  font-style: italic;
  line-height: 1.5;
  text-align: center;
}

/* Certifications */
.certifications-section {
  padding: 48px 0 70px;
  background: var(--white);
}

.section-heading {
  max-width: 760px;
  margin-inline: auto;
  color: var(--primary-blue);
  text-align: center;
}

.section-heading p {
  display: none;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section-heading p::before,
.section-heading p::after {
  width: 42px;
  height: 2px;
  background: currentColor;
  content: "";
}

.section-heading h1 {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: clamp(31px, 3vw, 42px);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.section-heading span {
  display: block;
  max-width: 620px;
  margin: 14px auto 0;
  color: #355b83;
  font-size: 16px;
  line-height: 1.45;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 42px;
}

.cert-card {
  display: grid;
  grid-template-columns: 205px minmax(0, 1fr);
  gap: 26px;
  align-items: center;
  min-height: 380px;
  padding: 24px;
  border: 1px solid rgba(8, 77, 163, .2);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 24px rgba(13, 56, 105, .08);
}

.cert-preview {
  display: grid;
  min-height: 310px;
  place-items: center;
  padding: 10px;
  border: 1px solid rgba(8, 77, 163, .12);
  border-radius: 5px;
  background: #fbfcff;
}

.cert-preview img {
  width: 100%;
  max-height: 286px;
  object-fit: contain;
  filter: none;
}

.cert-badge {
  display: inline-flex;
  margin-bottom: 11px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--primary-blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
}

.cert-content h2 {
  max-width: 430px;
  color: var(--primary-blue);
  font-family: var(--font-main);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  text-transform: none;
}

.cert-content > p:not(.cert-badge) {
  margin-top: 15px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}

.cert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 11px 16px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--white);
  box-shadow: none;
}

.btn-outline {
  border: 1.3px solid var(--primary-blue);
  background: var(--white);
  color: var(--primary-blue);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--primary-blue);
  color: var(--white);
}

/* CTA */
.quality-cta {
  padding: 0 0 78px;
  background: var(--white);
}

.quality-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding: 34px 42px;
  border-radius: 6px;
  background: var(--primary-blue);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(13, 56, 105, .14);
}

.quality-card p {
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  opacity: .82;
  text-transform: uppercase;
}

.quality-card h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 2.4vw, 34px);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.quality-card span {
  display: block;
  max-width: 720px;
  margin-top: 12px;
  color: rgba(255, 255, 255, .84);
  font-size: 15px;
  line-height: 1.45;
}

.btn-light {
  flex: 0 0 auto;
  border: 1.3px solid rgba(255, 255, 255, .7);
  background: var(--white);
  color: var(--primary-blue);
}

.btn-light:hover,
.btn-light:focus-visible {
  box-shadow: 0 8px 18px rgba(0, 0, 0, .12);
}

/* WhatsApp */
.whatsapp {
  position: fixed;
  right: 26px;
  bottom: 28px;
  z-index: 30;
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border: 5px solid var(--white);
  border-radius: 50%;
  background: #31c968;
  box-shadow: 0 3px 12px rgba(0, 0, 0, .18);
  transition: transform .2s ease;
}

.whatsapp:hover,
.whatsapp:focus-visible {
  transform: scale(1.06);
}

.whatsapp svg {
  width: 42px;
  height: 42px;
  fill: var(--white);
}

/* Footer */
.site-footer {
  min-height: 379px;
  padding: 68px 0 45px;
  background: linear-gradient(135deg, #0d3869 0%, #082f5d 62%, #06264d 100%);
  color: var(--muted-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.contact-column {
  max-width: 350px;
}

.footer-column h2 {
  margin-bottom: 20px;
  color: var(--white);
  font-size: 17px;
  font-weight: 700;
}

.footer-column p,
.footer-column li {
  margin-bottom: 9px;
  font-size: 13px;
  line-height: 1.35;
}

.footer-column a {
  transition: color .2s ease;
}

.footer-column a:hover,
.footer-column a:focus-visible {
  color: var(--white);
}

.social-links {
  display: flex;
  gap: 7px;
}

.social-links a {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 4px;
  background: rgba(255, 255, 255, .62);
  color: var(--footer-blue);
  font-size: 17px;
  font-weight: 700;
}

.footer-notice {
  margin-top: 73px;
}

.footer-notice p {
  font-size: 10px;
  font-style: italic;
  line-height: 1.45;
}

.footer-notice strong {
  font-style: normal;
}

/* Responsive */
@media (max-width: 1120px) {
  .main-nav {
    gap: 13px;
    transform: none;
  }

  .main-nav a {
    font-size: 11px;
  }

  .cert-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .cert-preview {
    min-height: 280px;
  }

  .quality-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(calc(100% - 36px), var(--container-width));
  }

  .site-header {
    height: 72px;
  }

  .brand {
    width: 140px;
  }

  .menu-toggle {
    display: block;
  }

  .menu-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .main-nav {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 18px 18px;
    background: var(--white);
    box-shadow: 0 8px 16px rgba(8, 77, 163, .12);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    justify-content: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(8, 77, 163, .12);
    font-size: 12px;
  }

  .main-nav a::after {
    right: 42%;
    bottom: 7px;
    left: 42%;
  }

  .page-hero {
    padding-top: 52px;
  }

  .title-ribbon {
    min-height: 104px;
  }

  .hero-intro {
    padding-top: 36px;
  }

  .hero-intro p {
    font-size: 18px;
  }

  .certifications-section {
    padding: 42px 0 58px;
  }

  .cert-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cert-card {
    padding: 22px;
  }

  .quality-cta {
    padding-bottom: 62px;
  }

  .quality-card {
    padding: 30px 26px;
  }

  .site-footer {
    padding: 45px 0 35px;
  }

  .footer-grid {
    gap: 34px;
  }

  .footer-notice {
    margin-top: 38px;
  }

  .whatsapp {
    right: 16px;
    bottom: 18px;
    width: 58px;
    height: 58px;
    border-width: 4px;
  }

  .whatsapp svg {
    width: 32px;
    height: 32px;
  }
}

@media (max-width: 540px) {
  .title-ribbon h1 {
    font-size: 31px;
  }

  .section-heading p::before,
  .section-heading p::after {
    width: 24px;
  }

  .section-heading h1 {
    font-size: 30px;
  }

  .cert-actions,
  .btn {
    width: 100%;
  }

  .cert-preview {
    min-height: 250px;
  }

  .cert-content h2 {
    font-size: 20px;
  }

}