/* PB Main Site - Design System (matches nonprofit + AI subsidiaries) */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Montserrat:wght@300;400;500;600;700&display=swap');

:root {
  --red: #E31B23;
  --red-dark: #B81419;
  --red-light: #FF3D44;
  --black: #1A1A1A;
  --dark: #111111;
  --gray-900: #222222;
  --gray-800: #333333;
  --gray-700: #444444;
  --gray-600: #666666;
  --gray-500: #888888;
  --gray-400: #AAAAAA;
  --gray-300: #CCCCCC;
  --gray-200: #E5E5E5;
  --gray-100: #F5F5F5;
  --white: #FFFFFF;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
  --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  letter-spacing: 1.5px;
  line-height: 1.1;
  color: var(--black);
}

a { color: var(--red); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--red-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

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

.section {
  padding: 80px 0;
}

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

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

.section-dark h2,
.section-dark h3 { color: var(--white); }

.section-gray {
  background: var(--gray-100);
}

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(17, 17, 17, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0 32px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--red);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--white);
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-logo .accent { color: var(--red); }
.nav-logo:hover { color: var(--white); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--gray-400);
  font-weight: 500;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--white); }

.nav-cta {
  background: var(--red) !important;
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 4px;
  font-weight: 600 !important;
  letter-spacing: 1px;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(227, 27, 35, 0.08) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-label {
  display: inline-block;
  background: rgba(227, 27, 35, 0.15);
  color: var(--red);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.05;
}

.hero h1 .accent { color: var(--red); }

.hero p {
  font-size: 1.15rem;
  color: var(--gray-400);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
  font-weight: 300;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }

.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); color: var(--white); }

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline-light:hover { border-color: var(--white); color: var(--white); }

.btn-outline-dark {
  background: transparent;
  color: var(--black);
  border: 2px solid var(--gray-300);
}
.btn-outline-dark:hover { border-color: var(--red); color: var(--red); }

.btn-secondary { background: var(--black); color: var(--white); }
.btn-secondary:hover { background: var(--gray-900); color: var(--white); }

.btn-lg { padding: 18px 40px; font-size: 15px; }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ===== STATS BAR ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: rgba(255,255,255,0.1);
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-top: 60px;
}

.stat-item {
  text-align: center;
  padding: 32px 16px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--red);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 8px;
  font-weight: 500;
}

/* Light stats bar variant */
.stats-bar-light {
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.stats-bar-light .stat-label { color: var(--gray-600); }

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .label {
  display: inline-block;
  color: var(--red);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray-600);
  max-width: 650px;
  margin: 0 auto;
  font-weight: 300;
}

.section-dark .section-header p { color: var(--gray-400); }

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px 24px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 44px;
  height: 44px;
  background: rgba(227, 27, 35, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--gray-600);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* Dark variant */
.section-dark .service-card {
  background: var(--gray-900);
  border-color: rgba(255,255,255,0.08);
}

.section-dark .service-card p { color: var(--gray-400); }

/* ===== WORK / CASE STUDIES GRID ===== */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.work-card {
  background: var(--gray-900);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.work-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.work-card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

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

.work-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.work-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--red);
  background: rgba(227, 27, 35, 0.1);
  padding: 4px 10px;
  border-radius: 3px;
}

.work-card h3 {
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 10px;
}

.work-card p {
  color: var(--gray-400);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.work-card .card-link {
  color: var(--red);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.work-card .card-link:hover { gap: 10px; }

/* ===== CASE STUDY DETAIL ===== */
.case-hero {
  min-height: 60vh;
  display: flex;
  align-items: flex-end;
  background: var(--dark);
  padding: 80px 0 60px;
  padding-top: 130px;
  position: relative;
}

.case-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17,17,17,0.3) 0%, rgba(17,17,17,0.95) 80%);
  z-index: 1;
}

.case-hero .container { position: relative; z-index: 2; }

.case-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.case-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-400);
  font-size: 14px;
}

.case-meta-item strong { color: var(--white); font-weight: 600; }

.case-body {
  padding: 80px 0;
}

.case-body .container {
  max-width: 900px;
}

.case-section {
  margin-bottom: 60px;
}

.case-section h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--red);
}

.case-section p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.case-section ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}

.case-section ul li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 1rem;
}

.case-section ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 2px;
  background: var(--red);
}

.case-impact {
  background: var(--black);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin: 48px 0;
}

.case-impact h3 {
  font-size: 1.8rem;
  color: var(--white);
  margin-bottom: 24px;
  text-align: center;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
}

.impact-item {
  text-align: center;
  padding: 16px 8px;
}

.impact-value,
.impact-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--red);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

.impact-label {
  font-size: 12px;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
  display: block;
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.case-gallery img {
  border-radius: var(--radius);
  width: 100%;
  height: 240px;
  object-fit: cover;
}

/* ===== ABOUT / METHODOLOGY ===== */
.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  counter-reset: method;
}

.method-step {
  text-align: center;
  padding: 24px 16px;
  counter-increment: method;
  position: relative;
}

.method-step::before {
  content: counter(method, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--red);
  display: block;
  margin-bottom: 12px;
  line-height: 1;
}

.method-step h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.method-step p {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ===== CLIENTS / LOGOS ===== */
.client-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.client-logos img {
  height: 48px;
  width: auto;
  opacity: 0.8;
  transition: var(--transition);
}

.client-logos img:hover {
  opacity: 1;
  transform: scale(1.05);
}

/* ===== QUOTE / TESTIMONIAL ===== */
.quote-block {
  text-align: center;
  padding: 80px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.quote-block blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.3;
  color: var(--black);
  margin-bottom: 24px;
}

.quote-block blockquote .highlight {
  color: var(--red);
}

.quote-block cite {
  font-style: normal;
  font-size: 14px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: var(--dark);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(227, 27, 35, 0.06) 0%, transparent 70%);
}

.cta-section .container { position: relative; z-index: 2; }

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--gray-400);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 40px;
  font-weight: 300;
}

/* ===== PROCESS / TIMELINE ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.process-card {
  background: var(--gray-900);
  border-radius: var(--radius-lg);
  padding: 36px;
  border-left: 3px solid var(--red);
}

.process-card .step-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--red);
  margin-bottom: 12px;
}

.process-card h3 {
  font-size: 1.4rem;
  color: var(--white);
  margin-bottom: 10px;
}

.process-card p {
  color: var(--gray-400);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CREDIBILITY SECTION ===== */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.experience-card {
  background: var(--gray-900);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}

.experience-card:hover { border-color: rgba(227, 27, 35, 0.3); }

.experience-card .duration {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--red);
  margin-bottom: 8px;
}

.experience-card h4 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.experience-card p {
  color: var(--gray-400);
  font-size: 0.9rem;
}

/* ===== CONTACT FORM ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--gray-600);
  margin-bottom: 24px;
  font-size: 1rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
}

.contact-detail .icon {
  width: 44px;
  height: 44px;
  background: rgba(227, 27, 35, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-detail .detail-text strong {
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-500);
  margin-bottom: 2px;
}

.contact-detail .detail-text span {
  font-size: 1rem;
  color: var(--black);
}

.contact-form .form-group { margin-bottom: 20px; }

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--gray-700);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--black);
  transition: var(--transition);
  background: var(--white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(227, 27, 35, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  padding: 48px 0 24px;
  border-top: 2px solid var(--red);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 24px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--white);
  letter-spacing: 2px;
}

.footer-logo .accent { color: var(--red); }

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  color: var(--gray-400);
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-nav a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--gray-600);
  font-size: 13px;
}

.footer-bottom a { color: var(--gray-500); }
.footer-bottom a:hover { color: var(--white); }

.footer-social {
  display: flex;
  gap: 16px;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb .sep { color: var(--gray-600); }

/* ===== ABOUT PAGE ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.about-intro p {
  font-size: 1.05rem;
  color: var(--gray-600);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-image {
  width: 100%;
  height: 450px;
  background: var(--gray-900);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* ===== PAGE HERO (non-home pages) ===== */
.page-hero {
  background: var(--dark);
  padding: 140px 0 60px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  margin-bottom: 16px;
}

.page-hero p {
  color: var(--gray-400);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

.page-hero .accent { color: var(--red); }

/* ===== SUBSIDIARY LINKS ===== */
.subsidiary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.subsidiary-card {
  background: var(--gray-900);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.subsidiary-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.subsidiary-card:hover {
  border-color: rgba(227, 27, 35, 0.3);
  transform: translateY(-4px);
}

.subsidiary-card h3 {
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 12px;
}

.subsidiary-card p {
  color: var(--gray-400);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* ===== CASE STUDY FILTERS ===== */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 10px 24px;
  border: 2px solid var(--gray-300);
  border-radius: 4px;
  background: transparent;
  color: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
}

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

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

.work-card.filter-hidden {
  display: none;
}

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

.work-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav { padding: 0 16px; height: 60px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--dark);
    padding: 24px;
    gap: 16px;
    border-bottom: 2px solid var(--red);
  }
  .nav-toggle { display: block; }

  .hero { min-height: auto; padding: 120px 0 60px; }
  .hero h1 { font-size: 2.5rem; }

  .section { padding: 60px 0; }
  .section-header { margin-bottom: 40px; }

  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 2rem; }

  .services-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .experience-grid { grid-template-columns: 1fr; }
  .subsidiary-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }

  .about-intro { grid-template-columns: 1fr; gap: 32px; }
  .about-image { height: 300px; }

  .case-hero { padding-top: 100px; min-height: auto; }
  .case-impact { padding: 32px 24px; }

  .footer-content { flex-direction: column; gap: 24px; text-align: center; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-nav { flex-wrap: wrap; justify-content: center; }

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

  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }

  .client-logos { gap: 24px; }
  .client-logos img { height: 28px; }
}

@media (max-width: 480px) {
  .method-steps { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: 1fr; }
}