/* ============================================
   ISO 21401 – Sustainable Hospitality Showcase
   Luxury Eco-Resort Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables --- */
:root {
  --sage: #A8C6A1;
  --sage-dark: #7FA878;
  --sage-light: #C8DFC4;
  --sage-pale: #E8F0E6;
  --ocean: #0077BE;
  --ocean-dark: #005A8E;
  --ocean-light: #339ED4;
  --beige: #F5F0E8;
  --beige-dark: #E8DFD0;
  --white: #FFFFFF;
  --off-white: #FAFAF8;
  --charcoal: #2C3E2D;
  --text: #3A4A3B;
  --text-light: #6B7D6C;
  --gold: #C4A35A;
  --gold-light: #E8D5A0;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;

  --shadow-sm: 0 2px 8px rgba(44,62,45,0.06);
  --shadow-md: 0 4px 20px rgba(44,62,45,0.08);
  --shadow-lg: 0 8px 40px rgba(44,62,45,0.12);
  --shadow-xl: 0 16px 60px rgba(44,62,45,0.16);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--off-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--charcoal);
  line-height: 1.2;
  font-weight: 600;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 680px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-sm {
  padding: 60px 0;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes leafSway {
  0%, 100% { transform: rotate(-3deg); }
  50% { transform: rotate(3deg); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--charcoal);
}

.nav-logo .leaf {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--sage);
  border-radius: 50% 50% 50% 8px;
  color: white;
  font-size: 1rem;
  animation: leafSway 4s ease-in-out infinite;
}

.nav-logo small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--sage-dark);
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  letter-spacing: 0.01em;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sage);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--sage-dark);
}

.nav-cta {
  background: var(--sage) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: 50px !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}

.nav-cta:hover {
  background: var(--sage-dark) !important;
  transform: translateY(-1px);
}

.nav-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn-primary {
  background: var(--sage);
  color: white;
  box-shadow: 0 4px 16px rgba(168,198,161,0.35);
}

.btn-primary:hover {
  background: var(--sage-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(168,198,161,0.45);
}

.btn-ocean {
  background: var(--ocean);
  color: white;
  box-shadow: 0 4px 16px rgba(0,119,190,0.25);
}

.btn-ocean:hover {
  background: var(--ocean-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,119,190,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border: 2px solid var(--sage);
}

.btn-outline:hover {
  background: var(--sage);
  color: white;
  transform: translateY(-2px);
}

.btn-white {
  background: white;
  color: var(--charcoal);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(44,62,45,0.75) 0%,
    rgba(44,62,45,0.4) 40%,
    rgba(0,119,190,0.2) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 120px 0 80px;
  animation: fadeInUp 1s ease forwards;
}

.hero-content .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(168,198,161,0.2);
  border: 1px solid rgba(168,198,161,0.4);
  color: var(--sage-light);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-content h1 {
  color: white;
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.12;
}

.hero-content h1 em {
  font-style: italic;
  color: var(--sage-light);
}

.hero-content p {
  color: rgba(255,255,255,0.85);
  font-size: 1.15rem;
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.7;
}

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

.hero-stat-bar {
  position: relative;
  z-index: 2;
  margin-top: 60px;
  display: flex;
  gap: 40px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat {
  text-align: left;
}

.hero-stat .num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--sage-light);
}

.hero-stat .label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
}

/* --- Page Heroes (Internal Pages) --- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--charcoal) 0%, #3A5A3B 60%, var(--ocean-dark) 100%);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(168,198,161,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,119,190,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero h1 {
  color: white;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  font-size: 1.15rem;
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb a {
  color: rgba(255,255,255,0.5);
}

.page-hero .breadcrumb a:hover {
  color: var(--sage-light);
}

/* --- Cards --- */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(168,198,161,0.1);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sage-pale);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--sage-dark);
}

.card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

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

/* --- Section Titles --- */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title .overline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--sage-dark);
  margin-bottom: 14px;
}

.section-title .overline::before,
.section-title .overline::after {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--sage);
  border-radius: 2px;
}

.section-title h2 {
  margin-bottom: 16px;
}

.section-title p {
  margin: 0 auto;
  font-size: 1.1rem;
}

/* --- Infographic Stats --- */
.stat-row {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.stat-item {
  text-align: center;
}

.stat-item .number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--sage-dark);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .desc {
  font-size: 0.9rem;
  color: var(--text-light);
  max-width: 160px;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--charcoal) 0%, #3A5A3B 50%, var(--ocean-dark) 100%);
  border-radius: var(--radius-xl);
  padding: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168,198,161,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-banner h2 {
  color: white;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn {
  position: relative;
  z-index: 1;
}

/* --- Feature Section (Split) --- */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split-section.reverse {
  direction: rtl;
}

.split-section.reverse > * {
  direction: ltr;
}

.split-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.split-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.split-image:hover img {
  transform: scale(1.03);
}

.split-text h2 {
  margin-bottom: 20px;
}

.split-text p {
  margin-bottom: 24px;
}

.split-text ul {
  list-style: none;
  margin-bottom: 28px;
}

.split-text ul li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  font-size: 1rem;
  color: var(--text-light);
}

.split-text ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--sage-dark);
  font-weight: 700;
}

/* --- Flowchart --- */
.flowchart {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  padding: 40px 0;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
}

.flow-step .circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--sage);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 14px;
  box-shadow: 0 4px 16px rgba(168,198,161,0.3);
}

.flow-step h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.flow-step p {
  font-size: 0.82rem;
  max-width: 120px;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--sage);
  margin: 0 -4px;
  margin-top: -30px;
}

/* --- Case Study --- */
.case-study {
  background: var(--beige);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 36px;
  align-items: center;
}

.case-study-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sage), var(--sage-dark));
  color: white;
  padding: 20px;
}

.case-study-badge .big {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.case-study-badge small {
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 4px;
  opacity: 0.9;
}

.case-study-text h3 {
  margin-bottom: 12px;
}

.case-study-text p {
  font-size: 0.95rem;
}

.case-study-text .tag {
  display: inline-block;
  background: var(--sage-pale);
  color: var(--sage-dark);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: 12px;
}

/* --- Resources / Article Cards --- */
.article-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(168,198,161,0.1);
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.article-card-img {
  height: 200px;
  overflow: hidden;
}

.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.article-card:hover .article-card-img img {
  transform: scale(1.05);
}

.article-card-body {
  padding: 28px;
}

.article-card-body .category {
  display: inline-block;
  background: var(--sage-pale);
  color: var(--sage-dark);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.35;
}

.article-card-body p {
  font-size: 0.88rem;
  line-height: 1.6;
}

/* --- Contact Form --- */
.contact-form {
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 18px;
  border: 2px solid var(--beige-dark);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--off-white);
  transition: var(--transition);
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--sage);
  background: white;
  box-shadow: 0 0 0 4px rgba(168,198,161,0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* --- Footer --- */
.footer {
  background: var(--charcoal);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255,255,255,0.55);
  max-width: 280px;
}

.footer h5 {
  color: white;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
}

.footer-links a:hover {
  color: var(--sage-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

/* --- Disclaimer Bar --- */
.disclaimer-bar {
  background: var(--beige);
  text-align: center;
  padding: 10px 24px;
  font-size: 0.78rem;
  color: var(--text-light);
  border-bottom: 1px solid var(--beige-dark);
}

/* --- Feature List --- */
.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--beige);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list .icon-wrap {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sage-pale);
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
}

.feature-list h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.feature-list p {
  font-size: 0.9rem;
}

/* --- Certification Badge --- */
.cert-badge {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sage) 0%, var(--gold) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  box-shadow: 0 8px 32px rgba(168,198,161,0.3), inset 0 1px 2px rgba(255,255,255,0.3);
  animation: float 4s ease-in-out infinite;
}

.cert-badge .std {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.2;
}

.cert-badge .sub {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 4px;
  opacity: 0.9;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--beige);
}

::-webkit-scrollbar-thumb {
  background: var(--sage);
  border-radius: 4px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split-section { gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 20px;
    box-shadow: var(--shadow-xl);
  }

  .nav-links.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .section {
    padding: 64px 0;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .split-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .split-section.reverse {
    direction: ltr;
  }

  .hero-content h1 {
    font-size: 2.2rem;
  }

  .hero-stat-bar {
    flex-direction: column;
    gap: 20px;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .case-study {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 32px;
  }

  .case-study-badge {
    margin: 0 auto;
  }

  .flowchart {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
    margin: -8px 0;
  }

  .stat-row {
    gap: 24px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    text-align: center;
    justify-content: center;
  }

  .contact-form {
    padding: 28px;
  }

  .page-hero {
    padding: 130px 0 60px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.5rem; }

  .card {
    padding: 24px;
  }

  .cta-banner {
    border-radius: var(--radius-lg);
  }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-sage { color: var(--sage-dark); }
.text-ocean { color: var(--ocean); }
.bg-beige { background: var(--beige); }
.bg-sage-pale { background: var(--sage-pale); }
.bg-white { background: white; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mt-32 { margin-top: 32px; }
.mx-auto { margin-left: auto; margin-right: auto; }