/* ==========================================================================
   BIOME Environmental Services — Design System
   ========================================================================== */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ----------------------------------------------------------------- Variables */
:root {
  /* Brand colours */
  --blue-900: #06283D;
  --blue-800: #0B3D5C;
  --blue-700: #0F4E75;
  --blue-600: #14638C;
  --blue-500: #1A7AAB;
  --blue-400: #4A9FCB;
  --blue-100: #E6F1F7;
  --blue-50:  #F2F8FB;

  --green-700: #2D7A5F;
  --green-600: #3A8F70;
  --green-500: #4FA586;
  --green-400: #6FBFA0;
  --green-100: #E6F3EE;

  /* Neutrals */
  --white:    #FFFFFF;
  --gray-50:  #F8FAFB;
  --gray-100: #F1F4F6;
  --gray-200: #E5E9EC;
  --gray-300: #D2D8DC;
  --gray-400: #A9B2B8;
  --gray-500: #7C878E;
  --gray-600: #5A646B;
  --gray-700: #3E474E;
  --gray-800: #262E34;
  --gray-900: #151B20;

  /* Semantic */
  --text:        var(--gray-800);
  --text-heading: var(--blue-900);
  --text-muted:  var(--gray-600);
  --bg:          var(--white);
  --bg-alt:      var(--gray-50);

  --header-h: 76px;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Spacing (8px base) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;
  --space-9: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(6,40,61,0.06);
  --shadow-md: 0 4px 20px rgba(6,40,61,0.08);
  --shadow-lg: 0 12px 40px rgba(6,40,61,0.12);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 0.2s var(--ease);
  --t-med: 0.35s var(--ease);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-700); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--blue-800); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
:focus-visible { outline: 3px solid var(--blue-400); outline-offset: 2px; }

/* ----------------------------------------------------------------- Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section { padding: var(--space-9) 0; }
.section--alt { background: var(--bg-alt); }
.section--blue { background: var(--blue-900); color: var(--white); }
.section--blue h2, .section--blue h3 { color: var(--white); }

.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--space-7); }
.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}
.section--blue .section-header h2 { color: var(--white); }
.section-header p { color: var(--text-muted); font-size: 1.075rem; }
.section--blue .section-header p { color: rgba(255,255,255,0.8); }

.section-header .eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: var(--space-2);
}
.section--blue .section-header .eyebrow { color: var(--green-400); }

/* ----------------------------------------------------------------- Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--font-sans);
  color: var(--text-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); font-weight: 700; }
h4 { font-size: 1.2rem; font-weight: 700; }
p { margin-bottom: var(--space-2); }
p:last-child { margin-bottom: 0; }

.text-muted { color: var(--text-muted); }

/* ----------------------------------------------------------------- Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  transition: all var(--t-fast);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  white-space: nowrap;
}
.btn--primary {
  background: var(--blue-700);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--blue-800);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--secondary {
  background: transparent;
  color: var(--blue-900);
  border-color: var(--blue-900);
}
.btn--secondary:hover {
  background: var(--blue-900);
  color: var(--white);
  border-color: var(--blue-900);
}
.btn--outline {
  background: transparent;
  color: var(--blue-700);
  border-color: var(--blue-700);
}
.btn--outline:hover {
  background: var(--blue-700);
  color: var(--white);
}
.btn--green {
  background: var(--green-600);
  color: var(--white);
}
.btn--green:hover {
  background: var(--green-700);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--lg { padding: 1rem 2.25rem; font-size: 1rem; }

/* ----------------------------------------------------------------- Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  transition: box-shadow var(--t-med);
}
.header.scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo img { height: 180px; width: auto; align-self: center; transform:translatey(9px); }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--blue-800);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--t-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green-500);
  transition: width var(--t-med);
}
.nav-link:hover { color: var(--blue-600); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--blue-700); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--blue-800);
  border-radius: 2px;
  transition: all var(--t-fast);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(9.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-9.5px) rotate(-45deg); }

/* ----------------------------------------------------------------- Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding-top: var(--header-h);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(255,255,255,0.78) 0%,
    rgba(255,255,255,0.72) 50%,
    rgba(255,255,255,0.84) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--space-6) var(--space-4);
}
.hero h1 {
  color: var(--blue-900);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}
.hero-buttons {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

/* ----------------------------------------------------------------- Page Hero (inner pages) */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + var(--space-7)) 0 var(--space-7);
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  text-align: center;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.pexels.com/photos/1578749/pexels-photo-1578749.jpeg?auto=compress&cs=tinysrgb&w=1200') center/cover;
  opacity: 0.12;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 {
  color: var(--white);
  margin-bottom: var(--space-2);
}
.page-hero p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-3);
}
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* ----------------------------------------------------------------- About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
}
.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}
.about-text h2 { margin-bottom: var(--space-3); }
.about-text p { margin-bottom: var(--space-2); color: var(--text-muted); }
.about-list {
  margin: var(--space-3) 0;
  display: grid;
  gap: var(--space-1);
}
.about-list li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--text);
  font-weight: 500;
}
.about-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-500);
}

/* ----------------------------------------------------------------- Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.service-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--t-med);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.service-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  color: var(--blue-700);
  transition: all var(--t-med);
}
.service-card:hover .service-icon {
  background: var(--blue-700);
  color: var(--white);
}
.service-icon svg { width: 28px; height: 28px; }
.service-card h3 { margin-bottom: var(--space-1); font-size: 1.3rem; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: var(--space-3); flex-grow: 1; }
.service-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue-700);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--t-fast), color var(--t-fast);
}
.service-card:hover .service-link { gap: 0.7rem; color: var(--blue-800); }

/* ----------------------------------------------------------------- Why BIOME */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
}
.why-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}
.why-points { display: grid; gap: var(--space-4); margin-top: var(--space-4); }
.why-point {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.why-point-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blue-50);
  color: var(--blue-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}
.why-point h4 { margin-bottom: 0.25rem; }
.why-point p { color: var(--text-muted); font-size: 0.95rem; margin: 0; }

/* ----------------------------------------------------------------- Technical Approach */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.approach-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: all var(--t-med);
}
.approach-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.25);
}
.approach-card .std-code {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green-400);
  margin-bottom: var(--space-1);
}
.approach-card h3 { color: var(--white); margin-bottom: var(--space-2); font-size: 1.25rem; }
.approach-card .std-title {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  font-style: italic;
  margin-bottom: var(--space-2);
}
.approach-card p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.approach-card a { color: var(--green-400); text-decoration: underline; text-underline-offset: 3px; }
.approach-card a:hover { color: var(--green-300); }
.approach-note {
  text-align: center;
  margin-top: var(--space-5);
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

/* ----------------------------------------------------------------- Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-7);
  align-items: start;
}
.contact-info { display: grid; gap: var(--space-3); }
.contact-item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  padding: var(--space-3);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: box-shadow var(--t-fast);
}
.contact-item:hover { box-shadow: var(--shadow-sm); }
.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--blue-50);
  color: var(--blue-700);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-item h4 { margin-bottom: 0.15rem; font-size: 0.95rem; }
.contact-item p, .contact-item a { color: var(--text-muted); font-size: 0.95rem; }
.contact-item a:hover { color: var(--blue-700); }

/* Form */
.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.form-group { margin-bottom: var(--space-3); }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 0.4rem;
}
.form-group label .req { color: #c0392b; }
.form-control {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(26,122,171,0.12);
  background: var(--white);
}
.form-control.error { border-color: #c0392b; }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-error {
  display: none;
  color: #c0392b;
  font-size: 0.8rem;
  margin-top: 0.3rem;
}
.form-message {
  display: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: var(--space-3);
}
.form-message.info {
  display: block;
  background: var(--blue-50);
  color: var(--blue-800);
  border: 1px solid var(--blue-100);
}

/* ----------------------------------------------------------------- Service Page */
.service-detail { padding: var(--space-7) 0; }
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
  margin-bottom: var(--space-7);
}
.service-detail-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}
.service-detail-text h2 { margin-bottom: var(--space-2); }
.service-detail-text p { color: var(--text-muted); margin-bottom: var(--space-2); }

.detail-section { margin-bottom: var(--space-7); }
.detail-section h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
}
.detail-section h3 {
  font-size: 1.2rem;
  margin: var(--space-4) 0 var(--space-2);
  color: var(--blue-800);
}
.detail-section p { color: var(--text-muted); margin-bottom: var(--space-2); max-width: 760px; }
.detail-section ul { margin: var(--space-2) 0; display: grid; gap: 0.6rem; max-width: 760px; }
.detail-section ul li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--text);
}
.detail-section ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-500);
}

.two-col-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  max-width: 760px;
}
.two-col-list li { padding-left: 1.75rem; }
.two-col-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-500);
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  border-radius: var(--radius-xl);
  padding: var(--space-7) var(--space-6);
  text-align: center;
  margin: var(--space-7) 0;
}
.cta-banner h2 { color: var(--white); margin-bottom: var(--space-2); }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: var(--space-4); max-width: 560px; margin-left: auto; margin-right: auto; }

/* ----------------------------------------------------------------- Assessors */
.assessor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-5);
}
.assessor-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t-med);
}
.assessor-card:hover { box-shadow: var(--shadow-md); border-color: var(--gray-300); }
.assessor-photo {
  width: 100%;
  aspect-ratio: 1/1;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  border-bottom: 1px solid var(--gray-200);
}
.assessor-photo svg { width: 64px; height: 64px; }
.assessor-body { padding: var(--space-4); }
.assessor-body h3 { font-size: 1.25rem; margin-bottom: 0.15rem; }
.assessor-body .assessor-title {
  color: var(--green-600);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.assessor-body .placeholder-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  background: var(--gray-100);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: var(--space-3);
}
.assessor-detail { margin-bottom: var(--space-2); }
.assessor-detail h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: 0.3rem;
}
.assessor-detail p { font-size: 0.9rem; color: var(--text-muted); }

/* ----------------------------------------------------------------- Footer */
.footer {
  background: var(--blue-900);
  color: rgba(255,255,255,0.7);
  padding: var(--space-7) 0 var(--space-4);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}
.footer-brand img { height: 48px; margin-bottom: var(--space-3); }
.footer-brand p { font-size: 0.9rem; max-width: 320px; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}
.footer-col ul { display: grid; gap: 0.6rem; }
.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-4);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ----------------------------------------------------------------- Animations */
.fade-in, .fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in { transform: none; }
.fade-in.visible, .fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-up:nth-child(2) { transition-delay: 0.08s; }
.fade-in-up:nth-child(3) { transition-delay: 0.16s; }
.fade-in-up:nth-child(4) { transition-delay: 0.24s; }
.fade-in-up:nth-child(5) { transition-delay: 0.32s; }
.fade-in-up:nth-child(6) { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .fade-in, .fade-in-up { opacity: 1; transform: none; }
}

/* ----------------------------------------------------------------- Responsive */
@media (max-width: 1024px) {
  .container { padding: 0 var(--space-3); }
  .about-grid, .why-grid, .contact-grid, .service-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .about-image, .why-image, .service-detail-image { max-width: 600px; margin: 0 auto; }
  .approach-grid { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .nav-toggle { display: flex; }
  .nav-list {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-h));
    background: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-5) var(--space-4);
    gap: var(--space-4);
    transform: translateX(100%);
    transition: transform var(--t-med);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }
  .nav-list.active { transform: translateX(0); }
  .nav-link { font-size: 1.1rem; }

  .section { padding: var(--space-7) 0; }
  .services-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-4); text-align: center; }
  .footer-brand p { margin: 0 auto; }
  .two-col-list { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 280px; }
}

@media (max-width: 480px) {
  .service-card { padding: var(--space-4); }
  .contact-form { padding: var(--space-4); }
  .cta-banner { padding: var(--space-5) var(--space-4); }
}