/* ===================================
   CSS CUSTOM PROPERTIES
   =================================== */
:root {
  --color-charcoal: #333333;
  --color-mid: #555555;
  --color-light: #888888;
  --color-accent: #2D6A6A;
  --color-accent-dark: #1E4F4F;
  --color-bg: #FFFFFF;
  --color-bg-warm: #F0F1F3;
  --color-bg-dark: #333333;
  --color-border: #DDDDDD;
  --color-bg-footer: #F0F1F3;
  --max-width: 720px;
  --nav-max-width: 960px;
}

/* ===================================
   RESET & BASE
   =================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-bg);
}

/* ===================================
   TYPOGRAPHY
   =================================== */
h1, h2 {
  font-family: 'DM Serif Display', serif;
  color: var(--color-charcoal);
  line-height: 1.2;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
}

h2 {
  font-size: 1.65rem;
  margin-bottom: 1rem;
}

p {
  color: var(--color-charcoal);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--color-charcoal);
}

/* ===================================
   LAYOUT
   =================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 60px 0;
}

/* ===================================
   NAVIGATION
   =================================== */
header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: var(--nav-max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  text-decoration: none;
  border: none;
  display: flex;
  align-items: center;
}

.logo img {
  height: 100px;
  width: auto;
  display: block;
}

.main-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 32px;
  align-items: center;
}

.main-nav ul li a {
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: var(--color-mid);
  text-decoration: none;
  transition: color 0.2s ease;
}

.main-nav ul li a:hover {
  color: var(--color-accent);
}

.main-nav ul li a.active {
  color: var(--color-charcoal);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 4px;
}

/* Hamburger button */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  align-items: center;
  justify-content: center;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: all 0.2s ease;
}

/* Mobile dropdown nav */
.mobile-nav {
  display: none;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.mobile-nav.open {
  display: block;
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav ul li a {
  display: block;
  padding: 14px 24px;
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  color: var(--color-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s ease;
}

.mobile-nav ul li a:hover {
  color: var(--color-accent);
}

.mobile-nav ul li a.active {
  color: var(--color-charcoal);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 4px;
}

/* ===================================
   FOOTER
   =================================== */
footer {
  background-color: var(--color-bg-footer);
  padding: 40px 0;
  text-align: center;
}

footer p {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: var(--color-light);
  margin-bottom: 4px;
}

footer p:last-child {
  margin-bottom: 0;
}

/* ===================================
   HERO SECTION (Home)
   =================================== */
.hero {
  background-color: var(--color-bg-warm);
  padding: 80px 0;
}

.hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 56px;
  color: var(--color-charcoal);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-family: 'DM Sans', sans-serif;
  font-size: 20px;
  color: var(--color-mid);
  font-weight: 400;
  line-height: 1.6;
  margin-bottom: 0;
}

.hero-body {
  margin-top: 20px;
  color: var(--color-charcoal);
}

/* ===================================
   HOME PAGE SECTIONS
   =================================== */
.section-who,
.section-what,
.section-how,
.section-ceo {
  background-color: var(--color-bg);
}

/* Service cards grid */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 1.5rem;
}

.service-card {
  display: block;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  padding: 20px;
  text-decoration: none;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  background-color: var(--color-bg-warm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.service-card-name {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-charcoal);
  display: block;
}

/* CEO Academy */
.ceo-section-link {
  color: var(--color-accent);
  font-weight: 500;
}

.ceo-section-link:hover {
  color: var(--color-accent-dark);
}

/* ===================================
   CTA SECTION (Home)
   =================================== */
.section-cta {
  background-color: var(--color-bg-dark);
  padding: 60px 0;
}

.section-cta p {
  color: #FFFFFF;
  font-size: 18px;
  margin-bottom: 1.5rem;
}

.btn-cta {
  display: inline-block;
  border: 2px solid #FFFFFF;
  color: #FFFFFF;
  background: transparent;
  padding: 12px 28px;
  font-size: 16px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
  cursor: pointer;
}

.btn-cta:hover {
  background-color: #FFFFFF;
  color: var(--color-charcoal);
}

/* ===================================
   SERVICES PAGE
   =================================== */
.services-intro {
  padding-bottom: 0;
}

.service-section {
  padding: 40px 0;
  scroll-margin-top: 72px;
}

.service-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  max-width: var(--max-width);
  margin: 0 auto;
}

.service-section h2 {
  border-left: 4px solid var(--color-accent);
  padding-left: 16px;
  margin-bottom: 1rem;
}

.service-detail-rule {
  border: none;
  border-top: 1px solid #EEEEEE;
  margin: 1.2rem 0;
}

.service-details p {
  margin-bottom: 0.5rem;
}

.service-details p:last-child {
  margin-bottom: 0;
}

.services-terms {
  font-size: 14px;
  color: var(--color-light);
  padding: 20px 0 60px;
}

/* ===================================
   ABOUT PAGE
   =================================== */
.about-top {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  margin-bottom: 0;
}

.about-image {
  width: 100%;
  max-width: 280px;
  display: block;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.about-image-fallback {
  width: 280px;
  height: 373px;
  background-color: #E8E4E0;
  border-radius: 4px;
  display: none;
}

.about-text p {
  margin-bottom: 1rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-lower {
  margin-top: 60px;
}

.about-lower h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.about-lower h2:first-child {
  margin-top: 0;
}

.expect-item {
  margin-bottom: 1rem;
}

.expect-item:last-child {
  margin-bottom: 0;
}

/* ===================================
   CONTACT PAGE
   =================================== */
.contact-details {
  padding-top: 40px;
  padding-bottom: 40px;
}

.contact-item {
  margin-bottom: 32px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-light);
  display: block;
  margin-bottom: 6px;
}

.contact-value {
  font-size: 17px;
}

.contact-form-section {
  padding-bottom: 60px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-mid);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  padding: 12px;
  font-size: 16px;
  font-family: 'DM Sans', sans-serif;
  color: var(--color-charcoal);
  background-color: var(--color-bg);
  outline: none;
  transition: border-color 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
}

.btn-submit {
  background-color: var(--color-accent);
  color: #FFFFFF;
  border: none;
  padding: 12px 28px;
  font-size: 16px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn-submit:hover {
  background-color: var(--color-accent-dark);
}

/* ===================================
   RESPONSIVE — 768px BREAKPOINT
   =================================== */
@media (max-width: 768px) {
  section {
    padding: 40px 0;
  }

  /* Navigation: show hamburger, hide desktop links */
  .main-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero */
  .hero {
    padding: 48px 0;
  }

  .hero h1 {
    font-size: 38px;
  }

  /* Service grid: single column */
  .service-grid {
    grid-template-columns: 1fr;
  }

  /* CTA */
  .section-cta {
    padding: 40px 0;
  }

  /* About: image above text, centred */
  .about-top {
    display: flex;
    flex-direction: column-reverse;
    gap: 24px;
  }

  .about-image {
    max-width: 300px;
    margin: 0 auto;
  }

  .about-image-fallback {
    width: 300px;
    height: 400px;
    margin: 0 auto;
  }
}