:root {
  --oa-green-dark: #046463;
  --oa-green: #016560;
  --oa-green-light: #72c2b0;
  --oa-mint: #a2ded0;
  --oa-yellow: #ffb41c;
  --oa-orange: #fd9435;
  --oa-navy: #163947;
  --oa-ink: #172126;
  --oa-muted: #627077;
  --oa-bg: #f4f7f6;
  --oa-white: #ffffff;
  --oa-border: rgba(22, 57, 71, 0.12);
  --oa-shadow: 0 20px 60px rgba(22, 57, 71, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--oa-ink);
  background: var(--oa-white);
  font-family: "Open Sans", sans-serif;
  line-height: 1.65;
}

h1,
h2,
h3,
h4,
h5,
h6,
.navbar,
.btn {
  font-family: "Montserrat", sans-serif;
}

img {
  max-width: 100%;
}

a {
  color: var(--oa-green);
}

a:hover {
  color: var(--oa-green-dark);
}

.oa-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(22, 57, 71, 0.08);
  backdrop-filter: blur(16px);
}

.oa-header .navbar {
  min-height: 82px;
  padding: 0;
}

.oa-brand img {
  width: auto;
  max-height: 62px;
}

.oa-header .nav-link {
  position: relative;
  padding: 29px 13px !important;
  color: var(--oa-navy);
  font-size: 0.88rem;
  font-weight: 700;
}

.oa-header .nav-link::after {
  content: "";
  position: absolute;
  right: 13px;
  bottom: 21px;
  left: 13px;
  height: 2px;
  background: var(--oa-yellow);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.oa-header .nav-link:hover::after {
  transform: scaleX(1);
}

.oa-header .navbar-toggler {
  border: 0;
  color: var(--oa-green);
  font-size: 2rem;
  box-shadow: none;
}

.oa-language {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--oa-muted);
  font-family: "Montserrat", sans-serif;
  font-size: 0.73rem;
  font-weight: 800;
}

.oa-language button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--oa-muted);
  font: inherit;
}

.oa-language button.active,
.oa-language button:hover {
  color: var(--oa-green);
}

.oa-btn,
a.oa-btn,
button.oa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.45rem;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(110deg, var(--oa-yellow), var(--oa-orange));
  color: var(--oa-navy) !important;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
  box-shadow: 0 10px 25px rgba(255, 180, 28, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.oa-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 180, 28, 0.38);
}

.oa-btn-small {
  min-height: 40px;
  padding: 0.5rem 1.2rem;
}

.oa-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1.4rem;
  border: 1.5px solid var(--oa-green);
  border-radius: 999px;
  background: transparent;
  color: var(--oa-green) !important;
  font-family: "Montserrat", sans-serif;
  font-size: 0.85rem;
  font-weight: 800;
  text-decoration: none;
}

.oa-btn-outline:hover {
  background: var(--oa-green);
  color: var(--oa-white) !important;
}

.oa-hero {
  position: relative;
  overflow: hidden;
  padding: 95px 0 85px;
  background:
    radial-gradient(circle at 84% 30%, rgba(162, 222, 208, 0.42), transparent 31%),
    linear-gradient(180deg, #ffffff 0%, #f8fbfa 100%);
}

.oa-hero::before {
  content: "";
  position: absolute;
  top: 30px;
  right: -100px;
  width: 470px;
  height: 470px;
  border: 1px solid rgba(114, 194, 176, 0.24);
  border-radius: 50%;
}

.oa-eyebrow,
.oa-section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--oa-green);
  font-family: "Montserrat", sans-serif;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.oa-eyebrow i {
  color: var(--oa-yellow);
  font-size: 1.15rem;
}

.oa-hero h1 {
  max-width: 760px;
  margin: 0 0 24px;
  color: var(--oa-navy);
  font-size: clamp(2.65rem, 5vw, 4.75rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.oa-hero h1 span {
  display: block;
  color: var(--oa-green);
}

.oa-hero-lead {
  max-width: 650px;
  margin-bottom: 30px;
  color: #495a62;
  font-size: 1.08rem;
}

.oa-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.oa-proof-points {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 27px;
  color: var(--oa-navy);
  font-size: 0.79rem;
  font-weight: 700;
}

.oa-proof-points span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.oa-proof-points i {
  color: var(--oa-green);
  font-size: 1rem;
}

.oa-hero-visual {
  position: relative;
  min-height: 530px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.oa-hero-shape {
  position: absolute;
  inset: 5% 2% 5% 10%;
  border-radius: 48% 52% 55% 45% / 55% 40% 60% 45%;
  background: linear-gradient(135deg, rgba(162, 222, 208, 0.86), rgba(244, 247, 246, 0.95));
}

.oa-main-hero-image {
  position: relative;
  z-index: 2;
  width: 90%;
  max-height: 500px;
  object-fit: contain;
  border-radius: 28px;
}

.oa-floating-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 11px;
  max-width: 215px;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--oa-shadow);
  backdrop-filter: blur(12px);
}

.oa-floating-card i {
  color: var(--oa-green);
  font-size: 1.8rem;
}

.oa-floating-card strong,
.oa-floating-card small {
  display: block;
}

.oa-floating-card strong {
  color: var(--oa-navy);
  font-size: 0.78rem;
}

.oa-floating-card small {
  color: var(--oa-muted);
  font-size: 0.66rem;
  line-height: 1.35;
}

.oa-floating-card-left {
  bottom: 54px;
  left: 0;
}

.oa-floating-card-right {
  top: 80px;
  right: 0;
}

.oa-trust-strip {
  padding: 0 0 35px;
  background: #f8fbfa;
}

.oa-trust-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 1fr 1fr;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(115deg, #034f50, #016560);
  color: var(--oa-white);
  box-shadow: 0 20px 45px rgba(4, 100, 99, 0.18);
}

.oa-trust-grid > div {
  min-height: 118px;
  padding: 24px 25px;
  border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.oa-trust-grid > div:last-child {
  border-right: 0;
}

.oa-trust-intro span,
.oa-partner span {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.oa-trust-intro strong {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: 0.92rem;
  line-height: 1.4;
}

.oa-partner,
.oa-trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.oa-partner-mark {
  display: grid;
  flex: 0 0 45px;
  width: 45px;
  height: 45px;
  place-items: center;
  border: 2px solid var(--oa-mint);
  border-radius: 12px;
  color: var(--oa-white);
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
}

.oa-partner strong,
.oa-trust-item strong,
.oa-trust-item span {
  display: block;
}

.oa-trust-item i {
  color: var(--oa-yellow);
  font-size: 2rem;
}

.oa-trust-item strong {
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
}

.oa-trust-item span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.68rem;
  line-height: 1.35;
}

.oa-section {
  padding: 90px 0;
}

.oa-section-mint {
  background: linear-gradient(180deg, rgba(162, 222, 208, 0.28), rgba(244, 247, 246, 0.8));
}

.oa-section h2 {
  margin-bottom: 22px;
  color: var(--oa-navy);
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.oa-section-lead,
.oa-section-heading p,
.oa-product-tagline {
  color: var(--oa-muted);
  font-size: 1.03rem;
}

.oa-section-heading {
  max-width: 820px;
  margin: 0 auto 46px;
}

.oa-image-frame {
  position: relative;
  padding: 18px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(162, 222, 208, 0.45), rgba(255, 180, 28, 0.12));
}

.oa-image-frame img {
  width: 100%;
  min-height: 400px;
  border-radius: 20px;
  object-fit: cover;
}

.oa-check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px 24px;
  margin-top: 28px;
}

.oa-check-grid > div {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--oa-navy);
  font-weight: 600;
}

.oa-check-grid i {
  display: grid;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  place-items: center;
  margin-top: 1px;
  border-radius: 50%;
  background: var(--oa-yellow);
  color: var(--oa-navy);
  font-size: 1rem;
}

.oa-audience-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(22, 57, 71, 0.09);
  border-radius: 21px;
  background: var(--oa-white);
  box-shadow: 0 12px 32px rgba(22, 57, 71, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.oa-audience-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 20px 42px rgba(22, 57, 71, 0.13);
}

.oa-card-image {
  height: 210px;
  overflow: hidden;
  background: var(--oa-bg);
}

.oa-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.oa-card-icon {
  position: relative;
  display: grid;
  width: 60px;
  height: 60px;
  margin: -30px auto 0;
  place-items: center;
  border: 5px solid var(--oa-white);
  border-radius: 50%;
  background: var(--oa-yellow);
  color: var(--oa-navy);
  font-size: 1.55rem;
}

.oa-card-body {
  padding: 18px 28px 30px;
  text-align: center;
}

.oa-card-body h3 {
  color: var(--oa-navy);
  font-size: 1.12rem;
  font-weight: 800;
}

.oa-card-body p {
  min-height: 105px;
  color: var(--oa-muted);
  font-size: 0.91rem;
}

.oa-card-body a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--oa-green);
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
}

.oa-smartclass {
  overflow: hidden;
  background:
    radial-gradient(circle at 5% 80%, rgba(162, 222, 208, 0.5), transparent 29%),
    var(--oa-bg);
}

.oa-product-visual {
  position: relative;
  min-height: 500px;
}

.oa-product-window {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 9px solid var(--oa-navy);
  border-radius: 22px;
  background: var(--oa-white);
  box-shadow: var(--oa-shadow);
}

.oa-product-window-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 15px;
  background: var(--oa-white);
}

.oa-product-window-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--oa-mint);
}

.oa-product-window-bar strong {
  margin-left: 8px;
  color: var(--oa-green);
  font-family: "Montserrat", sans-serif;
  font-size: 0.77rem;
}

.oa-product-window img {
  width: 100%;
  min-height: 380px;
  object-fit: cover;
}

.oa-mini-stat,
.oa-mini-note {
  position: absolute;
  z-index: 3;
  border: 1px solid rgba(22, 57, 71, 0.08);
  border-radius: 15px;
  background: var(--oa-white);
  box-shadow: 0 15px 36px rgba(22, 57, 71, 0.15);
}

.oa-mini-stat {
  right: -22px;
  bottom: 25px;
  padding: 15px 20px;
}

.oa-mini-stat span,
.oa-mini-stat strong {
  display: block;
}

.oa-mini-stat span {
  color: var(--oa-muted);
  font-size: 0.7rem;
}

.oa-mini-stat strong {
  color: var(--oa-green);
  font-family: "Montserrat", sans-serif;
  font-size: 0.82rem;
}

.oa-mini-note {
  bottom: 95px;
  left: -20px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 16px;
  color: var(--oa-navy);
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
}

.oa-mini-note i {
  color: var(--oa-green);
  font-size: 1.45rem;
}

.oa-feature-list {
  display: grid;
  gap: 15px;
  margin: 28px 0 32px;
}

.oa-feature-list > div {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.oa-feature-list i {
  display: grid;
  flex: 0 0 35px;
  width: 35px;
  height: 35px;
  place-items: center;
  border-radius: 10px;
  background: rgba(162, 222, 208, 0.36);
  color: var(--oa-green);
  font-size: 1.15rem;
}

.oa-feature-list span {
  color: var(--oa-muted);
  font-size: 0.91rem;
}

.oa-feature-list strong {
  color: var(--oa-navy);
}

.oa-benefit-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.oa-benefit-grid article {
  padding: 25px 21px;
  border-right: 1px solid var(--oa-border);
  text-align: center;
}

.oa-benefit-grid article:last-child {
  border-right: 0;
}

.oa-benefit-grid i {
  color: var(--oa-green);
  font-size: 2.6rem;
}

.oa-benefit-grid h3 {
  margin: 15px 0 8px;
  color: var(--oa-navy);
  font-size: 0.92rem;
  font-weight: 800;
}

.oa-benefit-grid p {
  margin: 0;
  color: var(--oa-muted);
  font-size: 0.78rem;
}

.oa-section-dark {
  background:
    radial-gradient(circle at 85% 0, rgba(114, 194, 176, 0.18), transparent 28%),
    var(--oa-navy);
}

.oa-section-heading-light h2 {
  color: var(--oa-white);
}

.oa-process-card {
  min-height: 280px;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--oa-white);
}

.oa-process-card > span {
  color: var(--oa-yellow);
  font-family: "Montserrat", sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
}

.oa-process-card h3 {
  margin: 25px 0 13px;
  font-size: 1.1rem;
  font-weight: 800;
}

.oa-process-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
}

.oa-testimonial {
  position: relative;
  max-width: 950px;
  margin: 0 auto;
  padding: 46px 55px;
  border-radius: 24px;
  background: var(--oa-bg);
}

.oa-testimonial > i {
  position: absolute;
  top: 26px;
  left: 30px;
  color: rgba(4, 100, 99, 0.13);
  font-size: 3.8rem;
}

.oa-testimonial blockquote {
  position: relative;
  z-index: 1;
  margin: 0 0 28px;
  color: var(--oa-navy);
  font-family: "Montserrat", sans-serif;
  font-size: 1.16rem;
  font-weight: 600;
  line-height: 1.7;
}

.oa-testimonial-author {
  display: flex;
  align-items: center;
  gap: 13px;
}

.oa-testimonial-author .oa-partner-mark {
  border-color: var(--oa-green);
  color: var(--oa-green);
}

.oa-testimonial-author strong,
.oa-testimonial-author span {
  display: block;
}

.oa-testimonial-author strong {
  color: var(--oa-navy);
  font-family: "Montserrat", sans-serif;
  font-size: 0.86rem;
}

.oa-testimonial-author span {
  color: var(--oa-muted);
  font-size: 0.77rem;
}

.oa-final-cta {
  padding: 0 0 80px;
}

.oa-final-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  padding: 42px 48px;
  border-radius: 21px;
  background: linear-gradient(115deg, #034f50, #016560);
  color: var(--oa-white);
  box-shadow: 0 22px 45px rgba(4, 100, 99, 0.19);
}

.oa-final-cta-inner span {
  color: var(--oa-mint);
  font-family: "Montserrat", sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.oa-final-cta-inner h2 {
  max-width: 760px;
  margin: 6px 0 0;
  font-size: clamp(1.45rem, 3vw, 2.25rem);
  font-weight: 800;
}

.oa-btn-light {
  flex: 0 0 auto;
}

.oa-contact {
  background: var(--oa-bg);
}

.oa-contact-list {
  display: grid;
  gap: 13px;
  margin-top: 28px;
}

.oa-contact-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--oa-navy);
  font-weight: 700;
  text-decoration: none;
}

.oa-contact-list i {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  background: var(--oa-white);
  color: var(--oa-green);
  font-size: 1.25rem;
  box-shadow: 0 8px 20px rgba(22, 57, 71, 0.08);
}

.oa-contact-form {
  padding: 35px;
  border-radius: 22px;
  background: var(--oa-white);
  box-shadow: var(--oa-shadow);
}

.oa-contact-form label {
  margin-bottom: 6px;
  color: var(--oa-navy);
  font-family: "Montserrat", sans-serif;
  font-size: 0.77rem;
  font-weight: 700;
}

.oa-contact-form .form-control {
  min-height: 49px;
  border: 1px solid rgba(22, 57, 71, 0.14);
  border-radius: 11px;
  box-shadow: none;
}

.oa-contact-form textarea.form-control {
  min-height: 140px;
}

.oa-contact-form .form-control:focus {
  border-color: var(--oa-green-light);
  box-shadow: 0 0 0 4px rgba(114, 194, 176, 0.15);
}

.oa-footer {
  padding: 62px 0 25px;
  background: #0d2e39;
  color: rgba(255, 255, 255, 0.68);
}

.oa-footer-brand img {
  max-height: 62px;
  margin-bottom: 18px;
}

.oa-footer p {
  max-width: 340px;
  font-size: 0.87rem;
}

.oa-footer h3 {
  margin-bottom: 17px;
  color: var(--oa-white);
  font-size: 0.83rem;
  font-weight: 800;
}

.oa-footer a,
.oa-footer span {
  display: block;
  margin-bottom: 9px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  text-decoration: none;
}

.oa-footer a:hover {
  color: var(--oa-yellow);
}

.oa-footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.oa-footer-bottom > span,
.oa-footer-bottom a {
  display: inline-block;
  margin: 0 0 0 16px;
  font-size: 0.72rem;
}

.oa-footer-bottom > span {
  margin-left: 0;
}

@media (max-width: 1199.98px) {
  .oa-trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .oa-trust-grid > div:nth-child(2) {
    border-right: 0;
  }

  .oa-trust-grid > div:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  }

  .oa-benefit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .oa-benefit-grid article:nth-child(3) {
    border-right: 0;
  }

  .oa-benefit-grid article:nth-child(-n + 3) {
    border-bottom: 1px solid var(--oa-border);
  }
}

@media (max-width: 991.98px) {
  .oa-header .navbar {
    padding: 10px 0;
  }

  .oa-header .navbar-collapse {
    padding: 15px 0 22px;
  }

  .oa-header .nav-link {
    padding: 11px 0 !important;
  }

  .oa-header .nav-link::after {
    display: none;
  }

  .oa-language {
    margin: 10px 0 15px;
  }

  .oa-hero {
    padding-top: 70px;
  }

  .oa-hero-visual {
    min-height: 460px;
  }

  .oa-image-frame img {
    min-height: auto;
  }

  .oa-product-visual {
    min-height: auto;
    margin-bottom: 25px;
  }

  .oa-final-cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 767.98px) {
  .oa-section {
    padding: 70px 0;
  }

  .oa-hero h1 {
    font-size: 2.7rem;
  }

  .oa-hero-visual {
    min-height: 360px;
  }

  .oa-floating-card {
    display: none;
  }

  .oa-trust-grid {
    grid-template-columns: 1fr;
  }

  .oa-trust-grid > div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  }

  .oa-trust-grid > div:last-child {
    border-bottom: 0;
  }

  .oa-check-grid,
  .oa-benefit-grid {
    grid-template-columns: 1fr;
  }

  .oa-benefit-grid article {
    border-right: 0;
    border-bottom: 1px solid var(--oa-border);
  }

  .oa-benefit-grid article:last-child {
    border-bottom: 0;
  }

  .oa-card-body p {
    min-height: auto;
  }

  .oa-mini-stat,
  .oa-mini-note {
    display: none;
  }

  .oa-testimonial {
    padding: 40px 27px;
  }

  .oa-testimonial blockquote {
    font-size: 1rem;
  }

  .oa-final-cta-inner {
    padding: 34px 28px;
  }

  .oa-contact-form {
    padding: 25px;
  }

  .oa-footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .oa-footer-bottom a {
    margin: 0 15px 0 0;
  }
}

@media (max-width: 479.98px) {
  .oa-hero {
    padding: 55px 0 65px;
  }

  .oa-hero h1 {
    font-size: 2.25rem;
  }

  .oa-hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .oa-btn,
  .oa-btn-outline {
    width: 100%;
  }

  .oa-proof-points {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .oa-hero-visual {
    min-height: 285px;
  }
}

/* =========================================================
   ONLINE ACADEMY / ABOUT SECTION
========================================================= */

.oa-about-modern {
  position: relative;
  overflow: hidden;
  background: #ffffff;
}

.oa-about-modern::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -120px;

  width: 390px;
  height: 390px;

  border-radius: 50%;
  background: rgba(162, 222, 208, 0.14);
}

.oa-about-modern .container {
  position: relative;
  z-index: 1;
}

.oa-about-modern .oa-section-heading {
  max-width: 900px;
  margin-bottom: 48px;
}

.oa-about-modern .oa-section-heading p {
  max-width: 820px;
  margin: 0 auto;

  color: var(--oa-muted);
  font-size: 1.02rem;
  line-height: 1.75;
}

/* Tri glavne kartice */
.oa-about-card {
  position: relative;

  padding: 34px 30px;

  border: 1px solid rgba(22, 57, 71, 0.1);
  border-radius: 22px;

  background: #ffffff;

  box-shadow:
    0 14px 36px rgba(22, 57, 71, 0.07);

  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.oa-about-card:hover {
  transform: translateY(-6px);

  border-color: rgba(4, 100, 99, 0.2);

  box-shadow:
    0 22px 48px rgba(22, 57, 71, 0.12);
}

.oa-about-icon {
  display: grid;

  width: 58px;
  height: 58px;

  margin-bottom: 24px;

  place-items: center;

  border-radius: 17px;

  color: var(--oa-green);
  background: rgba(162, 222, 208, 0.32);

  font-size: 1.65rem;
}

.oa-about-card:nth-child(1) .oa-about-icon {
  color: var(--oa-green);
  background: rgba(162, 222, 208, 0.32);
}

.oa-about-card h3 {
  margin-bottom: 14px;

  color: var(--oa-navy);

  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.4;
}

.oa-about-card p {
  margin: 0;

  color: var(--oa-muted);

  font-size: 0.91rem;
  line-height: 1.7;
}

/* Donja horizontalna poruka */
.oa-about-improvement {
  display: flex;
  align-items: center;
  gap: 20px;

  margin-top: 30px;
  padding: 25px 30px;

  border: 1px solid rgba(4, 100, 99, 0.13);
  border-radius: 20px;

  background:
    linear-gradient(
      110deg,
      rgba(162, 222, 208, 0.28),
      rgba(244, 247, 246, 0.92)
    );
}

.oa-about-improvement-icon {
  display: grid;
  flex: 0 0 54px;

  width: 54px;
  height: 54px;

  place-items: center;

  border-radius: 16px;

  color: var(--oa-navy);
  background: var(--oa-yellow);

  font-size: 1.55rem;
}

.oa-about-improvement h3 {
  margin: 0 0 5px;

  color: var(--oa-navy);

  font-size: 1rem;
  font-weight: 800;
}

.oa-about-improvement p {
  margin: 0;

  color: var(--oa-muted);

  font-size: 0.88rem;
  line-height: 1.6;
}

/* Tablet */
@media (max-width: 991.98px) {
  .oa-about-modern .oa-section-heading {
    margin-bottom: 38px;
  }

  .oa-about-card {
    padding: 28px 26px;
  }
}

/* Mobile */
@media (max-width: 767.98px) {
  .oa-about-modern .oa-section-heading {
    text-align: left !important;
  }

  .oa-about-modern .oa-section-heading p {
    margin-left: 0;
  }

  .oa-about-improvement {
    align-items: flex-start;
    padding: 22px;
  }
}

/* =========================================================
   ABOUT SECTION — DODATNE DORADE
========================================================= */

.oa-about-modern .oa-section-heading {
  max-width: 920px;
  margin-bottom: 42px;
}

.oa-about-modern .oa-section-heading p {
  max-width: 820px;
  margin-right: auto;
  margin-left: auto;
}

/* Kompaktnije kartice */
.oa-about-card {
  display: flex;
  flex-direction: column;

  padding: 30px 28px;
}

.oa-about-icon {
  margin-bottom: 17px;
}

/* Mala oznaka 01–03 */
.oa-about-card-label {
  display: block;

  margin-bottom: 8px;

  color: var(--oa-green);

  font-family: "Montserrat", sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.oa-about-card h3 {
  margin-bottom: 11px;
}

.oa-about-card p {
  margin-bottom: 0;
}

/* Donja traka kao zajednički princip */
.oa-about-improvement {
  align-items: center;

  margin-top: 30px;
  padding: 23px 30px;
}

.oa-about-improvement-label {
  display: block;

  margin-bottom: 3px;

  color: var(--oa-green);

  font-family: "Montserrat", sans-serif;
  font-size: 0.65rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.oa-about-improvement h3 {
  margin: 0 0 4px;
}

.oa-about-improvement p {
  margin: 0;
}

/* Tablet */
@media (max-width: 991.98px) {
  .oa-about-card {
    padding: 27px 25px;
  }
}

/* Mobilni prikaz */
@media (max-width: 767.98px) {
  .oa-about-modern .oa-section-heading {
    margin-bottom: 32px;
    text-align: left !important;
  }

  .oa-about-modern .oa-section-heading p {
    margin-left: 0;
  }

  .oa-about-improvement {
    align-items: flex-start;
    padding: 21px;
  }

  .oa-about-improvement-label {
    font-size: 0.62rem;
  }
}

/* =========================================================
   ABOUT SECTION — FINALNO VIZUELNO Doterivanje
========================================================= */

/* Ikonica i oznaka 01–03 u jednom redu */
.oa-about-card-top {
  display: flex;
  align-items: center;
  gap: 13px;

  margin-bottom: 21px;
}

.oa-about-card-top .oa-about-icon {
  flex: 0 0 54px;

  width: 54px;
  height: 54px;

  margin-bottom: 0;
}

.oa-about-card-top .oa-about-card-label {
  margin: 0;

  color: var(--oa-green);

  font-family: "Montserrat", sans-serif;
  font-size: 0.69rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* Malo bolji razmak ostatka sadržaja kartice */
.oa-about-card h3 {
  margin: 0 0 11px;
}

.oa-about-card p {
  margin: 0;
}

/* Zajednički princip centriran */
.oa-about-improvement-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 11px;

  margin-top: 30px;
  padding: 25px 35px;

  text-align: center;
}

.oa-about-improvement-centered .oa-about-improvement-icon {
  flex: 0 0 52px;

  width: 52px;
  height: 52px;
}

.oa-about-improvement-content {
  max-width: 900px;
}

.oa-about-improvement-centered .oa-about-improvement-label {
  display: block;

  margin-bottom: 4px;

  color: var(--oa-green);

  font-family: "Montserrat", sans-serif;
  font-size: 0.65rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.oa-about-improvement-centered h3 {
  margin: 0 0 5px;

  color: var(--oa-navy);
}

.oa-about-improvement-centered p {
  margin: 0 auto;

  color: var(--oa-muted);
  line-height: 1.6;
}

/* Tablet i mobilni */
@media (max-width: 991.98px) {
  .oa-about-card-top {
    margin-bottom: 17px;
  }
}

@media (max-width: 767.98px) {
  .oa-about-card-top {
    align-items: center;
  }

  .oa-about-improvement-centered {
    padding: 23px 21px;
  }
}

/* =========================================================
   SMARTCLASS — MODULARNA SEKCIJA
========================================================= */

.oa-smartclass-modular {
  position: relative;
  overflow: hidden;

  background:
    radial-gradient(
      circle at 4% 85%,
      rgba(162, 222, 208, 0.42),
      transparent 28%
    ),
    var(--oa-bg);
}

.oa-smartclass-modular::after {
  content: "";
  position: absolute;
  top: -150px;
  right: -130px;

  width: 420px;
  height: 420px;

  border: 1px solid rgba(114, 194, 176, 0.2);
  border-radius: 50%;
}

.oa-smartclass-modular .container {
  position: relative;
  z-index: 1;
}

.oa-smartclass-modular .oa-section-heading {
  max-width: 900px;
  margin-bottom: 50px;
}

.oa-smartclass-modular .oa-section-heading p {
  max-width: 820px;
  margin-right: auto;
  margin-left: auto;
}

/* Prikaz platforme */

.oa-smartclass-product {
  position: relative;
}

.oa-smartclass-window {
  overflow: hidden;

  border: 8px solid var(--oa-navy);
  border-radius: 22px;

  background: #ffffff;

  box-shadow:
    0 25px 60px rgba(22, 57, 71, 0.17);
}

.oa-smartclass-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;

  min-height: 45px;
  padding: 9px 14px;

  background: #ffffff;
}

.oa-window-dots {
  display: flex;
  gap: 6px;
}

.oa-window-dots span {
  width: 8px;
  height: 8px;

  border-radius: 50%;
  background: var(--oa-mint);
}

.oa-window-dots span:nth-child(2) {
  background: var(--oa-yellow);
}

.oa-window-dots span:nth-child(3) {
  background: var(--oa-green-light);
}

.oa-smartclass-window-bar strong {
  color: var(--oa-green);

  font-family: "Montserrat", sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
}

.oa-smartclass-window img {
  display: block;

  width: 100%;
  min-height: 390px;

  object-fit: cover;
}

/* Principi ispod slike */

.oa-smartclass-principles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;

  margin-top: 20px;
}

.oa-smartclass-principles span {
  display: inline-flex;
  align-items: center;
  gap: 6px;

  padding: 8px 11px;

  border: 1px solid rgba(4, 100, 99, 0.12);
  border-radius: 999px;

  background: rgba(255, 255, 255, 0.82);

  color: var(--oa-navy);

  font-family: "Montserrat", sans-serif;
  font-size: 0.67rem;
  font-weight: 700;
}

.oa-smartclass-principles i {
  color: var(--oa-green);
  font-size: 1rem;
}

/* Grid modula */

.oa-smartclass-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.oa-smartclass-module {
  display: flex;
  align-items: flex-start;
  gap: 13px;

  min-height: 160px;
  padding: 20px;

  border: 1px solid rgba(22, 57, 71, 0.1);
  border-radius: 18px;

  background: rgba(255, 255, 255, 0.9);

  box-shadow:
    0 10px 28px rgba(22, 57, 71, 0.06);

  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.oa-smartclass-module:hover {
  transform: translateY(-4px);

  border-color: rgba(4, 100, 99, 0.2);

  box-shadow:
    0 17px 36px rgba(22, 57, 71, 0.11);
}

/* Live modul diskretno istaknut */

.oa-module-featured {
  border-color: rgba(255, 180, 28, 0.4);

  background:
    linear-gradient(
      135deg,
      rgba(255, 180, 28, 0.12),
      rgba(255, 255, 255, 0.94)
    );
}

.oa-smartclass-module-icon {
  display: grid;
  flex: 0 0 43px;

  width: 43px;
  height: 43px;

  place-items: center;

  border-radius: 13px;

  color: var(--oa-green);
  background: rgba(162, 222, 208, 0.3);

  font-size: 1.3rem;
}

.oa-module-featured .oa-smartclass-module-icon {
  color: #9b6600;
  background: rgba(255, 180, 28, 0.2);
}

.oa-smartclass-module h3 {
  margin: 1px 0 7px;

  color: var(--oa-navy);

  font-size: 0.93rem;
  font-weight: 800;
}

.oa-smartclass-module p {
  margin: 0;

  color: var(--oa-muted);

  font-size: 0.79rem;
  line-height: 1.55;
}

.oa-smartclass-action {
  margin-top: 38px;
}

/* Tablet */

@media (max-width: 991.98px) {
  .oa-smartclass-product {
    max-width: 700px;
    margin-right: auto;
    margin-left: auto;
  }

  .oa-smartclass-window img {
    min-height: auto;
  }

  .oa-smartclass-module-grid {
    margin-top: 8px;
  }
}

/* Mobilni prikaz */

@media (max-width: 767.98px) {
  .oa-smartclass-modular .oa-section-heading {
    margin-bottom: 36px;
    text-align: left !important;
  }

  .oa-smartclass-modular .oa-section-heading p {
    margin-left: 0;
  }

  .oa-smartclass-module-grid {
    grid-template-columns: 1fr;
  }

  .oa-smartclass-module {
    min-height: auto;
  }

  .oa-smartclass-action .oa-btn {
    width: 100%;
  }
}