/* ============================================
   TransAfrica Resource — Main Stylesheet
   Professional Environmental Consulting
   ============================================ */

/* --- 1. CSS CUSTOM PROPERTIES --- */
:root {
  /* Colors — sampled directly from the company logo (oxblood-brown, teal-sage, sky-blue) */
  --color-primary: #3C1618;
  --color-primary-dark: #2A0F11;
  --color-primary-light: #F1E9E7;
  --color-primary-rgb: 60, 22, 24;
  --color-secondary: #241512;
  --color-secondary-rgb: 36, 21, 18;
  --color-accent: #449AC8;
  --color-accent-dark: #2E7CA8;
  --color-accent-light: #E7F2F8;
  --color-teal: #527C7A;
  --color-teal-dark: #3A5C5A;
  --color-teal-light: #E9F0EF;
  --color-bg: #FAF8F4;
  --color-bg-alt: #F3F0E9;
  --color-white: #FFFFFF;
  --color-text: #241512;
  --color-text-body: #5A4C47;
  --color-text-light: #8B7E78;
  --color-text-muted: #A79C96;
  --color-border: #E4DDD2;
  --color-border-dark: #D6CBBC;
  --color-error: #DC2626;
  --color-error-light: #FEF2F2;
  --color-success: #16A34A;
  --color-success-light: #F0FDF4;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-family-serif: Cambria, 'Iowan Old Style', 'Sitka Text', Georgia, serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-hero: clamp(2rem, 5vw, 3.25rem);
  --line-height-tight: 1.2;
  --line-height-base: 1.6;
  --line-height-relaxed: 1.75;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --space-section: 5rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1rem;
  --nav-height: 72px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
  --shadow-nav: 0 2px 12px rgba(0, 0, 0, 0.08);

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* --- 2. RESET & BASE --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text-body);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- 3. TYPOGRAPHY --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-family-serif);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-hero);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--space-md);
}

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

.section-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--font-size-3xl);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 640px;
  margin-bottom: var(--space-2xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* --- 4. LAYOUT UTILITIES --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.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;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  z-index: 10000;
  font-weight: var(--font-weight-semibold);
}

.skip-link:focus {
  top: var(--space-md);
  color: var(--color-white);
}

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

/* --- 5. BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  line-height: 1.4;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 10px 22px rgba(var(--color-primary-rgb), 0.35);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent-light);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-secondary);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--font-size-lg);
}

/* --- 6. ICON STYLING --- */
.icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-md {
  width: 20px;
  height: 20px;
}

.icon-lg {
  width: 32px;
  height: 32px;
}

.icon-xl {
  width: 48px;
  height: 48px;
}

.icon svg {
  width: 100%;
  height: 100%;
}

/* Icon containers for cards */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
  flex-shrink: 0;
}

.icon-box svg {
  width: 28px;
  height: 28px;
}

.icon-box-lg {
  width: 72px;
  height: 72px;
}

.icon-box-lg svg {
  width: 36px;
  height: 36px;
}

.icon-box-teal {
  background-color: var(--color-teal-light);
  color: var(--color-teal-dark);
}

.icon-box-accent {
  background-color: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.btn-row {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- 7. NAVBAR --- */
.navbar {
  position: sticky;
  top: 0;
  height: var(--nav-height);
  z-index: 1000;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-nav);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  text-decoration: none;
}

.navbar-brand-text {
  font-family: var(--font-family-serif);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.navbar-brand-text .brand-2 {
  color: var(--color-teal-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-body);
  text-decoration: none;
  padding: var(--space-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.active {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
}

.nav-phone:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: var(--space-sm);
  color: var(--color-text);
  z-index: 1010;
}

.hamburger svg {
  width: 24px;
  height: 24px;
}

.hamburger .icon-close {
  display: none;
}

.hamburger.open .icon-menu {
  display: none;
}

.hamburger.open .icon-close {
  display: block;
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
  transition: right var(--transition-slow);
  z-index: 1005;
  flex-direction: column;
  gap: var(--space-sm);
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1004;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-nav-overlay.open {
  opacity: 1;
}

.mobile-nav .nav-link {
  display: block;
  color: var(--color-text);
  font-size: var(--font-size-lg);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .nav-link:hover,
.mobile-nav .nav-link.active {
  color: var(--color-primary);
}

.mobile-nav .nav-link::after {
  display: none;
}

/* --- 8. HERO SECTIONS --- */

/* Homepage split hero: headline + copy beside a photo panel, no full-bleed background image */
.hero-split {
  position: relative;
  padding: var(--space-4xl) 0 var(--space-3xl);
  overflow: hidden;
}

.hero-split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-eyebrow {
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-teal-dark);
  font-weight: var(--font-weight-bold);
  display: inline-block;
  margin-bottom: var(--space-md);
}

.hero-split h1 {
  font-size: clamp(2rem, 4.4vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-lg);
}

.hero-split h1 .highlight {
  color: var(--color-accent-dark);
}

.hero-split-copy {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 34rem;
  margin-bottom: var(--space-xl);
}

/* Watermark globe motif, echoes the logo's lat/long grid lines */
.globe-watermark {
  position: absolute;
  top: -140px;
  right: -160px;
  width: 640px;
  height: 640px;
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
}

/* Hero visual panel — tilted photo card */
.hero-visual {
  position: relative;
  padding: var(--space-xl) var(--space-md) var(--space-md) var(--space-2xl);
}

.hero-visual-card {
  position: relative;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  transform: rotate(-1.4deg);
  overflow: hidden;
}

.hero-visual-photo {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.hero-visual-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual-live {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(250, 248, 244, 0.92);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 10.5px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-teal-dark);
}

.hero-visual-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(to top, rgba(var(--color-secondary-rgb), 0.55), transparent);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
}

.hero-visual-tags {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
}

.pulse-dot {
  animation: pulse 2.4s ease-in-out infinite;
  transform-origin: center;
}

@keyframes pulse {
  0%, 100% { opacity: 0.9; r: 4.5; }
  50% { opacity: 0.35; r: 8; }
}

/* Photo band — full-width image strip used between sections */
.photo-band {
  position: relative;
  height: 320px;
  overflow: hidden;
}

.photo-band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-band-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
}

.photo-band-caption {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-lg);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

/* Tag pill (legislation / topic tags) */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.04em;
  font-weight: var(--font-weight-semibold);
  color: var(--color-teal-dark);
  background-color: var(--color-teal-light);
  border: 1px solid rgba(82, 124, 122, 0.35);
  padding: 3px 9px;
  border-radius: var(--radius-sm);
}

/* Page hero (sub-pages) — plain text hero, no image */
.page-hero-plain {
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.page-hero-plain .container {
  max-width: 46rem;
}

.page-hero-plain h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  margin-bottom: var(--space-lg);
}

.page-hero-plain p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

/* Legacy page-hero (background-image + overlay) — still used by projects.html */
.page-hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--color-primary-rgb), 0.78);
  z-index: 1;
}

.page-hero .hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--space-xl);
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
}

/* --- 9. SECTIONS --- */
.section {
  padding: var(--space-section) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-alt {
  background-color: var(--color-white);
}

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section-dark .section-eyebrow {
  color: var(--color-accent);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.section-navy {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.section-navy .section-title {
  color: var(--color-white);
}

.section-navy .section-subtitle {
  color: rgba(255, 255, 255, 0.75);
}

.section-diagonal-cut {
  height: 56px;
  background-color: var(--color-bg);
  clip-path: polygon(0 0, 100% 100%, 100% 0);
}

/* Geometric pattern backgrounds */
.section-pattern {
  position: relative;
}

.section-pattern::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(var(--color-primary-rgb), 0.05) 1px, transparent 0);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.section-pattern > .container {
  position: relative;
  z-index: 1;
}

/* --- 10. CARDS --- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.card-text {
  color: var(--color-text-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-top: var(--space-md);
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: var(--space-sm);
  color: var(--color-primary-dark);
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card-link:hover svg {
  transform: translateX(3px);
}

/* Service card */
.service-card[id] {
  scroll-margin-top: calc(var(--navbar-height, 72px) + var(--space-lg));
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.service-card .card-title {
  color: var(--color-primary);
}

.service-card .legislation-badge {
  display: inline-block;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

/* Project card */
.project-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

.project-card-image {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.project-card-body {
  padding: var(--space-lg);
}

.project-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.project-card-meta svg {
  width: 14px;
  height: 14px;
}

.project-card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.category-badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.badge-eia {
  background-color: #DCFCE7;
  color: #166534;
}

.badge-water {
  background-color: #DBEAFE;
  color: #1E40AF;
}

.badge-gis {
  background-color: #FEF3C7;
  color: #92400E;
}

.badge-air {
  background-color: #E0E7FF;
  color: #3730A3;
}

.badge-technology {
  background-color: #F3E8FF;
  color: #6B21A8;
}

/* Value card (used on About page) */
.value-card {
  text-align: center;
  padding: var(--space-2xl);
}

.value-card .icon-box {
  margin-left: auto;
  margin-right: auto;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* --- 11. STATS STRIP --- */
.stats-strip {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.stat-item .icon-box {
  margin-bottom: var(--space-sm);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- 12. WHY CHOOSE US --- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.why-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.why-item .icon-box {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  flex-shrink: 0;
}

.why-item h3 {
  color: var(--color-white);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.why-item p {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-base);
}

/* --- 13. TIMELINE / PROCESS --- */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  position: relative;
  padding-left: var(--space-3xl);
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.process-step {
  position: relative;
}

.process-step-number {
  position: absolute;
  left: calc(-1 * var(--space-3xl));
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  z-index: 1;
}

.process-step-number svg {
  width: 20px;
  height: 20px;
}

.process-step h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.process-step p {
  color: var(--color-text-body);
}

/* --- 14. DIRECTOR / PROFILE --- */
.director-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.director-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.director-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.director-bio h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-xs);
}

.director-bio .director-title {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
}

.director-bio p {
  margin-bottom: var(--space-md);
}

.credentials-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.credential-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.credential-tag svg {
  width: 14px;
  height: 14px;
}

.quote-block {
  position: relative;
  padding: var(--space-xl);
  padding-left: var(--space-2xl);
  margin-top: var(--space-xl);
  background-color: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.quote-block .quote-icon {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  color: var(--color-primary);
  opacity: 0.3;
}

.quote-block .quote-icon svg {
  width: 24px;
  height: 24px;
}

/* --- 15. PROJECT FILTER --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-3xl);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-body);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.project-card.hidden {
  display: none;
}

.coming-soon-note {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  font-style: italic;
}

/* Project detail expand */
.project-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease;
  opacity: 0;
}

.project-detail.open {
  max-height: 600px;
  opacity: 1;
}

.project-detail-inner {
  padding-top: var(--space-md);
  margin-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.project-detail-inner h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.project-detail-inner ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md) 0;
}

.project-detail-inner ul li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
  line-height: var(--line-height-base);
}

.project-detail-inner ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.project-detail-inner .project-outcome {
  background: var(--color-primary-light);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-primary-dark);
  line-height: var(--line-height-base);
}

.card-link[aria-expanded="true"] svg {
  transform: rotate(90deg);
  transition: transform 0.3s ease;
}

.card-link svg {
  transition: transform 0.3s ease;
}

/* --- 16. CONTACT FORM --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-info-item .icon-box {
  width: 44px;
  height: 44px;
  margin-bottom: 0;
}

.contact-info-item .icon-box svg {
  width: 20px;
  height: 20px;
}

.contact-info-item h4 {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 2px;
}

.contact-info-item a {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.contact-info-item a:hover {
  color: var(--color-primary);
}

.contact-map {
  margin-top: var(--space-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  height: 280px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-form {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234B5563' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form-error.visible {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.form-error svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.form-success {
  display: none;
  padding: var(--space-lg);
  background-color: var(--color-success-light);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.form-success.visible {
  display: flex;
}

.form-success svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

/* --- 17. CTA BANNER --- */
.cta-banner {
  text-align: center;
  padding: var(--space-4xl) 0;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --- 18. SPLIT SECTION --- */
.split-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

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

.split-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* --- 19. EXPERTISE LIST --- */
.expertise-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.expertise-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-text-body);
}

.expertise-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- 20. FOOTER --- */
.footer {
  background-color: var(--color-secondary);
  color: rgba(255, 255, 255, 0.75);
  padding-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-3xl);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-lg);
  font-weight: var(--font-weight-semibold);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer-brand img {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
}

.footer-brand-name {
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer-contact-item a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item a:hover {
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-accent);
  color: var(--color-secondary);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-lg) 0;
  text-align: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

/* --- 21. ANIMATIONS --- */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children animation */
.stagger-children .fade-in-up:nth-child(1) { transition-delay: 0s; }
.stagger-children .fade-in-up:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .fade-in-up:nth-child(3) { transition-delay: 0.2s; }
.stagger-children .fade-in-up:nth-child(4) { transition-delay: 0.3s; }
.stagger-children .fade-in-up:nth-child(5) { transition-delay: 0.4s; }
.stagger-children .fade-in-up:nth-child(6) { transition-delay: 0.5s; }

/* --- 22. RESPONSIVE BREAKPOINTS --- */

/* Small tablets (640px+) */
@media (min-width: 640px) {
  :root {
    --container-padding: 1.5rem;
  }

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

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

/* Tablets (768px+) */
@media (min-width: 768px) {
  .hamburger {
    display: none !important;
  }

  .nav-links {
    display: flex !important;
  }

  .mobile-nav,
  .mobile-nav-overlay {
    display: none !important;
  }

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

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .director-section {
    grid-template-columns: 300px 1fr;
  }

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

  .hero-split-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

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

  .process-timeline {
    flex-direction: row;
    padding-left: 0;
    gap: 0;
  }

  .process-timeline::before {
    left: 0;
    right: 0;
    top: 19px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .process-step {
    flex: 1;
    text-align: center;
    padding: 0 var(--space-md);
  }

  .process-step-number {
    position: relative;
    left: auto;
    margin: 0 auto var(--space-md);
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .project-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }

  .director-section {
    grid-template-columns: 350px 1fr;
  }
}

/* Large desktop (1280px+) */
@media (min-width: 1280px) {
  :root {
    --container-padding: 2rem;
  }
}

/* Mobile only */
@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .mobile-nav {
    display: flex;
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  h2, .section-title {
    font-size: var(--font-size-2xl);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .navbar,
  .hamburger,
  .mobile-nav,
  .mobile-nav-overlay,
  .scroll-indicator,
  .filter-bar {
    display: none !important;
  }

  .hero, .page-hero {
    min-height: auto;
    padding: var(--space-xl) 0;
  }

  body {
    color: #000;
    background: #fff;
  }
}