:root {
  --blue: #0f2f5c;
  --blue-dark: #08213f;
  --orange: #f28c28;
  --orange-dark: #d96f0d;
  --ice: #e9eef5;
  --text: #10233e;
  --muted: #5a6980;
  --line: #d7dfeb;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(15, 47, 92, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: "Open Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body,
button,
input,
select,
textarea {
  font: inherit;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 78px;
  padding: 12px clamp(18px, 5vw, 64px);
  color: var(--white);
  background: var(--blue-dark);
  box-shadow: 0 10px 30px rgba(8, 33, 63, 0.22);
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-width: 230px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 2px solid var(--white);
  border-radius: 8px;
  font-family: Montserrat, Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
}

.brand strong {
  display: block;
  font-family: Montserrat, Arial, sans-serif;
  font-size: 25px;
  line-height: 1;
}

.brand strong span,
.site-footer strong span {
  color: var(--orange);
}

.brand small {
  display: block;
  color: #cbd7e6;
  font-size: 11px;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: clamp(12px, 2vw, 26px);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.92;
}

.site-nav a:hover {
  color: var(--orange);
}

.nav-toggle {
  display: none;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 0;
  border-radius: 5px;
  font-family: Montserrat, Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
  cursor: pointer;
}

.header-cta,
.button.secondary {
  color: var(--white);
  background: var(--orange);
}

.button.secondary:hover,
.header-cta:hover {
  background: var(--orange-dark);
}

.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.primary:hover {
  background: var(--blue-dark);
}

.button.ghost {
  color: var(--blue);
  background: var(--white);
  border: 1px solid var(--line);
}

.button.compact {
  width: 100%;
  min-height: 36px;
  padding: 9px 14px;
  color: var(--white);
  background: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  min-height: 520px;
  background: linear-gradient(90deg, #f7f9fc 0%, #ffffff 48%, #eef2f7 100%);
}

.hero-copy {
  align-self: center;
  padding: clamp(48px, 7vw, 92px) clamp(24px, 6vw, 76px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: Montserrat, Arial, sans-serif;
  line-height: 1.08;
}

h1 {
  max-width: 720px;
  color: var(--blue);
  font-size: clamp(35px, 5.2vw, 70px);
  font-weight: 800;
  text-transform: uppercase;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 570px;
  margin: 24px 0 0;
  color: #203a61;
  font-size: 19px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-media {
  min-height: 420px;
  background: linear-gradient(90deg, rgba(255,255,255,0.52), rgba(255,255,255,0)), url("../img/hero-trainers.jpg") center / cover no-repeat;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 28px clamp(20px, 5vw, 72px);
  background: var(--white);
}

.benefits article {
  min-height: 132px;
  padding: 12px 28px;
  text-align: center;
  border-right: 1px solid var(--line);
}

.benefits article:last-child {
  border-right: 0;
}

.benefits span {
  display: block;
  color: var(--blue);
  font-size: 34px;
  line-height: 1;
}

.benefits h2 {
  margin-top: 12px;
  color: var(--blue);
  font-size: 15px;
  text-transform: uppercase;
}

.benefits p {
  margin: 8px auto 0;
  max-width: 230px;
  color: var(--muted);
  font-size: 14px;
}

.split-section,
.content-section,
.detail-grid,
.contact-band {
  width: min(1140px, calc(100% - 40px));
  margin: 0 auto;
}

.split-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  padding: 22px 0 10px;
}

.feature-panel,
.detail-card,
.price-box,
.contact-form,
.trainer-card,
.seminar-card,
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-panel {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 20px;
  align-items: stretch;
  min-height: 265px;
  overflow: hidden;
  padding: 28px 0 0 28px;
}

.feature-panel.cool {
  background: #edf3fa;
}

.feature-panel.warm {
  background: linear-gradient(135deg, #fff7ef, #f6f0e8);
}

.feature-panel h2,
.section-heading h2,
.detail-card h2,
.two-column h2,
.contact-band h2 {
  color: var(--blue);
  font-size: clamp(25px, 3vw, 34px);
  text-transform: uppercase;
}

.feature-panel.warm h2 {
  color: #d7650d;
}

.feature-panel p {
  margin: 18px 0 24px;
}

.feature-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-section {
  padding: 42px 0 16px;
}

.section-heading {
  margin-bottom: 26px;
  text-align: center;
}

.seminar-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.seminar-card {
  overflow: hidden;
  background: var(--white);
}

.seminar-card img {
  width: 100%;
  aspect-ratio: 2.1 / 1;
  object-fit: cover;
}

.seminar-card div {
  padding: 18px;
}

.seminar-card h3 {
  color: var(--blue);
  font-size: 19px;
  text-transform: uppercase;
}

.seminar-card p,
.detail-card p,
.two-column p,
.contact-band p {
  color: var(--muted);
}

.seminar-card ul,
.trainer-card ul {
  margin: 14px 0;
  padding-left: 18px;
}

.seminar-card li::marker,
.trainer-card li::marker {
  color: var(--orange);
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.price {
  display: block;
  margin: 12px 0;
  color: var(--orange);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 26px;
  text-align: center;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 10px 0 20px;
}

.detail-card {
  min-height: 280px;
  padding: 30px;
  background: linear-gradient(135deg, #ffffff, #eef3f8);
}

.check-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin-top: 10px;
  padding-left: 26px;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 800;
  content: "✓";
}

.check-list.strong li {
  font-weight: 700;
}

.trainer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.trainer-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 22px;
  align-items: center;
  overflow: hidden;
  background: #f7f9fc;
}

.trainer-card img {
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
}

.trainer-card h3 {
  color: var(--blue);
  text-transform: uppercase;
}

.trainer-card div {
  padding: 22px 22px 22px 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 40px;
  align-items: center;
}

.price-box {
  padding: 30px;
  text-align: center;
  background: var(--blue);
}

.price-box span,
.price-box p {
  color: #d9e4f2;
}

.price-box strong {
  display: block;
  color: var(--orange);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 58px;
}

.faq {
  max-width: 900px;
}

.faq details {
  margin-top: 12px;
  padding: 18px 22px;
  background: var(--white);
}

.faq summary {
  color: var(--blue);
  font-family: Montserrat, Arial, sans-serif;
  font-weight: 800;
  cursor: pointer;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: 34px;
  align-items: start;
  margin-top: 34px;
  padding: 36px;
  color: var(--white);
  background: var(--blue-dark);
  border-radius: 8px 8px 0 0;
}

.contact-band h2 {
  color: var(--white);
}

.contact-band p {
  color: #d9e4f2;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 22px;
  color: var(--text);
  background: var(--white);
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 11px 12px;
  color: var(--text);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(242, 140, 40, 0.26);
  border-color: var(--orange);
}

.contact-form .wide,
.contact-form .privacy,
.contact-form button {
  grid-column: 1 / -1;
}

.privacy {
  display: flex !important;
  grid-template-columns: auto 1fr;
  align-items: flex-start;
  color: var(--muted) !important;
  font-weight: 600 !important;
}

.privacy input {
  width: auto;
  margin-top: 4px;
}

.site-footer {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 24px;
  align-items: center;
  padding: 24px clamp(18px, 5vw, 64px);
  color: var(--blue);
  background: #f2f5f9;
  font-size: 14px;
}

.site-footer strong {
  font-family: Montserrat, Arial, sans-serif;
  font-size: 24px;
}

.site-footer nav {
  display: flex;
  gap: 18px;
}

.site-footer a:hover {
  color: var(--orange);
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    justify-self: end;
    min-height: 40px;
    padding: 9px 14px;
    color: var(--white);
    background: transparent;
    border: 1px solid rgba(255,255,255,0.45);
    border-radius: 5px;
    font-family: Montserrat, Arial, sans-serif;
    font-weight: 800;
  }

  .site-nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 0 6px;
  }

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

  .hero,
  .split-section,
  .seminar-grid,
  .detail-grid,
  .trainer-grid,
  .two-column,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .benefits {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefits article:nth-child(2) {
    border-right: 0;
  }

  .hero-media {
    min-height: 360px;
    order: -1;
  }

  .contact-band {
    padding: 28px;
  }

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

@media (max-width: 680px) {
  .site-header {
    padding-inline: 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand strong {
    font-size: 19px;
  }

  .brand small {
    display: none;
  }

  .hero-copy {
    padding: 36px 20px;
  }

  .button-row,
  .button {
    width: 100%;
  }

  .benefits {
    grid-template-columns: 1fr;
    padding-inline: 20px;
  }

  .benefits article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .benefits article:last-child {
    border-bottom: 0;
  }

  .split-section,
  .content-section,
  .detail-grid,
  .contact-band {
    width: min(100% - 28px, 1140px);
  }

  .feature-panel {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .feature-panel img {
    min-height: 180px;
    border-radius: 6px;
  }

  .trainer-card {
    grid-template-columns: 1fr;
  }

  .trainer-card div {
    padding: 0 20px 22px;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }
}