:root {
  --navy: #071b33;
  --navy-light: #0e2d4f;
  --blue: #155b8f;
  --orange: #f26a1b;
  --gold: #c9983d;
  --charcoal: #2c333a;
  --light: #f5f7fa;
  --white: #ffffff;
  --muted: #6b7280;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--light);
  color: var(--navy);
}

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

/* ==================================================
   HEADER SECTION START
================================================== */

.site-header {
  height: 82px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 32px;
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 2px 10px rgba(0,0,0,.15);
  border-bottom:2px solid #c9983d;

}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.logo img {
  display: block;
  height: 54px;
  width: auto;
}

.logo a {
  display: block;
}

.contact-btn {
  transition: background-color 0.2s ease,
              transform 0.2s ease;
}

.contact-btn:hover {
  background: #d9570d;
  transform: translateY(-1px);
}

nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 13px;
  text-transform: uppercase;
  font-weight: 700;
}

nav a {
  transition: color 0.25s ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--orange);
}

.contact-btn {
  background: var(--orange);
  color: var(--white);
  padding: 15px 28px;
  border-radius: 5px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
  flex-shrink: 0;
}

@media (max-width: 700px) {
  .site-header {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }

  nav {
    flex-wrap: wrap;
    margin-left: 0;
  }
}

/* ==================================================
   HEADER SECTION END
================================================== */

.primary-btn {
  background: var(--orange);
  color: var(--white);
  padding: 14px 24px;
  border-radius: 5px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
}

.secondary-btn {
  border: 1px solid var(--white);
  color: var(--white);
  padding: 14px 24px;
  border-radius: 5px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 385px;
  min-height: calc(100vh - 82px);
}

.main-content {
  min-width: 0;
}

.hero {
  min-height: 760px;
  background:
    linear-gradient(90deg, rgba(7,27,51,.95), rgba(7,27,51,.45)),
    url("images/hero-mountain.png") center/cover no-repeat;
  color: var(--white);
  display: grid;
  grid-template-columns:40% 60%;
  align-items: center;
  padding: 48px;
}

.hero h1 {
  font-size: 46px;
  line-height: 1.08;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--orange);
}

.hero p {
  font-size: 18px;
  line-height: 1.6;
  max-width: 590px;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual{
    display:flex;
    justify-content:center;
    align-items:center;
    width:100%;
}

.hero-system-diagram {
  width: min(100%, 900px);
  max-width: 900px;
  height: auto;
  display: block;
  filter: drop-shadow(0 25px 40px rgba(0,0,0,.35));
  transition: transform 0.35s ease;
}
@media (max-width: 1200px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    min-height: auto;
    padding: 64px 40px;
  }

  .hero-text {
    max-width: 720px;
  }

  .hero-system-diagram {
    max-width: 760px;
  }
}
@media (max-width: 700px) {
  .hero {
    padding: 48px 22px;
  }

  .hero-system-diagram {
    max-width: 100%;
  }
}

.hero-system-diagram:hover{
    transform:scale(1.02);
}

.quick-links {
  background: var(--white);
  padding: 20px;
  border-bottom: 1px solid #d7dce3;
}

.quick-links h2 {
  text-align: center;
  font-size: 16px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.quick-link-grid {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    width: 100%;
}

.quick-link-item {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  transition: background-color 0.2s ease,
              transform 0.2s ease;
}

.quick-link-item:hover {
  background: #f5f7fa;
  transform: translateY(-2px);
}

.quick-link-grid a:last-child {
  border-right: none;
}

.quick-link-grid img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.quick-link-grid strong {
  display: block;
}

.quick-link-grid small {
  display: block;
}

.quick-link-grid a {
  border-right: 1px solid #d7dce3;
  padding: 14px 10px;
  font-weight: 800;
  text-align: center;
  font-size: 13px;
}

.quick-link-grid small {
  display: block;
  margin-top: 5px;
  font-weight: 400;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  padding: 24px;
  background: var(--light);
}

.feature-card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 18px rgba(0,0,0,.08);
  display: flex;
  flex-direction: column;
  min-height: 430px;
  transition: transform 0.2s ease,
              box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
}

.feature-card p {
  flex-grow: 1;
}

.feature-card img {
  width: 100%;
  height: 165px;
  object-fit: cover;
}

.feature-card h3 {
  font-size: 20px;
  text-transform: uppercase;
  padding: 18px 18px 8px;
}

.feature-card p {
  padding: 0 18px;
  color: var(--charcoal);
  font-size: 14px;
  line-height: 1.5;
}

.feature-card a {
  display: block;
  padding: 18px;
  font-weight: 800;
  font-size: 13px;
  color: var(--navy);
}

.stats {
  background: var(--navy);
  color: var(--white);
  padding: 26px 40px;
}

.stats h2 {
  text-align: center;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
  text-align: center;
  margin-bottom: 24px;
}

.stats-grid strong {
  display: block;
  font-size: 34px;
}

.stats-grid span {
  display: block;
  font-size: 12px;
  margin-top: 6px;
}

blockquote {
  text-align: center;
  font-size: 20px;
}

blockquote cite {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 800;
}

.sidebar {
  background: var(--white);
  padding: 28px;
  border-left: 1px solid #d7dce3;
}

.book-card {
  position: relative;
  padding-bottom: 30px;
  border-bottom: 1px solid #d7dce3;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 800;
}

.book-card h2 {
  font-size: 38px;
  text-transform: uppercase;
  line-height: 1;
  margin: 12px 0;
}

.book-card p {
  max-width: 210px;
  line-height: 1.5;
}

.book-card img {
  position: absolute;
  right: 0;
  top: 0;
  width: 135px;
}

.book-card .primary-btn {
  display: inline-block;
  margin-top: 22px;
}

.newsletter {
  background: var(--navy);
  color: var(--white);
  padding: 24px;
  margin: 28px 0;
  border-radius: 5px;
}

.newsletter h3 {
  text-transform: uppercase;
  margin-bottom: 8px;
}

.newsletter p {
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 18px;
}

.newsletter form {
  display: flex;
}

.newsletter input {
  flex: 1;
  padding: 12px;
  border: none;
}

.newsletter button {
  background: var(--orange);
  color: var(--white);
  border: none;
  padding: 12px 16px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.podcast-card,
.resources {
  margin-top: 28px;
}

.podcast-card h3,
.resources h3 {
  text-transform: uppercase;
  margin-bottom: 18px;
}

.podcast-inner {
  display: flex;
  gap: 18px;
}

.podcast-inner img {
  width: 105px;
  height: 105px;
  object-fit: cover;
  border-radius: 5px;
}

.podcast-inner h4 {
  margin-bottom: 8px;
}

.podcast-inner p {
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.podcast-inner a,
.resources a {
  font-weight: 800;
  font-size: 13px;
  color: var(--navy);
}

.resources ul {
  list-style: none;
  margin-bottom: 20px;
}

.resources li {
  border-bottom: 1px solid #e5e7eb;
  padding: 13px 0;
  font-size: 14px;
}

@media (max-width: 1200px) {
  .page-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-left: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 1200px) {
  .quick-link-grid {
    flex-wrap: wrap;
  }

  .quick-link-item {
    flex: 1 1 25%;
  }
}
@media (max-width: 700px) {
  .quick-link-item {
    flex: 1 1 50%;
  }
}

@media (max-width: 700px) {

  
.hero {
    padding: 32px 22px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .feature-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .book-card img {
    position: static;
    margin-top: 20px;
  }

  .resources-page {
  padding: 70px 60px;
  background: #f5f7fa;
}

.resources-page h1 {
  font-size: 46px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.resources-page p {
  font-size: 18px;
  max-width: 760px;
  margin-bottom: 32px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.resource-card {
  background: #fff;
  border-radius: 10px;
  padding: 28px;
  box-shadow: 0 8px 22px rgba(0,0,0,.08);
}

.resource-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.resource-card p {
  font-size: 15px;
  line-height: 1.5;
}

.resource-card a {
  display: inline-block;
  margin-top: 18px;
  font-weight: 800;
  color: #071b33;
}

@media (max-width: 900px) {
  .resource-grid {
    grid-template-columns: 1fr;
  }
}

}

@media (max-width: 700px) {
  .site-header {
    height: auto;
    flex-direction: column;
    align-items: center;
    padding: 18px 20px;
  }

  nav {
    justify-content: center;
    margin-left: 0;
    gap: 14px 20px;
  }

  .contact-btn {
    margin-top: 4px;
  }
}