/* ============================================
   CIYuan Performance Marketing Agency
   Clean, Bright, White Design
   ============================================ */

/* --- CSS Variables --- */
:root {
  --white: #ffffff;
  --off-white: #f9f9f9;
  --light-gray: #f2f2f2;
  --medium-gray: #e0e0e0;
  --text-gray: #6b7280;
  --dark-gray: #374151;
  --black: #111827;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --success: #10b981;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --max-width: 1200px;
  --header-height: 80px;
  --transition: all 0.3s ease;
}

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

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

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

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

/* --- Utility --- */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-gray { color: var(--text-gray); }
.bg-off-white { background: var(--off-white); }
.bg-primary-light { background: var(--primary-light); }

.section-padding {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-header .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--black);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-gray);
  line-height: 1.8;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

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

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

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

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

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

.btn-dark:hover {
  background: transparent;
  color: var(--black);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1rem;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  border-bottom-color: var(--light-gray);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
}

.logo svg {
  width: 40px;
  height: 40px;
}

.logo span {
  font-family: var(--font-serif);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark-gray);
  position: relative;
  letter-spacing: 0.5px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

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

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

.nav-cta {
  margin-left: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--black);
  transition: var(--transition);
}

/* --- Mobile Nav --- */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: var(--white);
  z-index: 999;
  padding: 40px 24px;
}

.mobile-nav.active {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav a {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--dark-gray);
  padding: 8px 0;
  border-bottom: 1px solid var(--light-gray);
}

/* --- Hero Section --- */
.hero {
  padding-top: calc(var(--header-height) + 80px);
  padding-bottom: 100px;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 20px;
  padding: 8px 16px;
  background: var(--primary-light);
  border-radius: 30px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--black);
}

.hero h1 .highlight {
  color: var(--primary);
  position: relative;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}

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

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--medium-gray);
}

.hero-stat .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.hero-stat .text {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-top: 4px;
}

/* --- Clients / trust bar --- */
.trust-bar {
  padding: 60px 0;
  background: var(--off-white);
  border-top: 1px solid var(--light-gray);
  border-bottom: 1px solid var(--light-gray);
}

.trust-bar .label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-gray);
  margin-bottom: 32px;
}

.trust-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  opacity: 0.5;
}

.trust-logos img {
  height: 32px;
  filter: grayscale(100%);
  transition: var(--transition);
}

.trust-logos img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

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

.service-card {
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 16px;
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  border-color: transparent;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--black);
}

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

.service-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.service-card .learn-more:hover {
  gap: 10px;
}

/* --- About / Why section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: 16px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
}

.about-image .badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--primary);
  color: var(--white);
  padding: 24px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.3);
}

.about-image .badge .num {
  font-size: 2.5rem;
  font-weight: 800;
  display: block;
}

.about-image .badge .label {
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: 0.9;
}

.about-content .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.about-content h2 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: 20px;
}

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

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--dark-gray);
}

.about-feature .check {
  width: 22px;
  height: 22px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* --- Stats Counter --- */
.stats-section {
  background: var(--primary);
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item .number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  display: block;
}

.stat-item .text {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.case-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--light-gray);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.case-card-image {
  height: 220px;
  overflow: hidden;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

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

.case-card-body .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.case-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-card-body p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

.case-card-stats {
  display: flex;
  gap: 24px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--light-gray);
}

.case-stat .val {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
}

.case-stat .lbl {
  font-size: 0.75rem;
  color: var(--text-gray);
  margin-top: 2px;
}

/* --- Testimonials --- */
.testimonials-slider {
  max-width: 800px;
  margin: 0 auto;
}

.testimonial {
  text-align: center;
  padding: 40px;
}

.testimonial .quote {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.8;
  color: var(--dark-gray);
  font-style: italic;
  margin-bottom: 28px;
  position: relative;
}

.testimonial .quote::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary-light);
  font-family: var(--font-serif);
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
}

.testimonial .author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.testimonial .author img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial .author-info .name {
  font-weight: 600;
  font-size: 0.95rem;
}

.testimonial .author-info .role {
  font-size: 0.8rem;
  color: var(--text-gray);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.testimonial-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--medium-gray);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.testimonial-dots .dot.active {
  background: var(--primary);
  width: 28px;
  border-radius: 5px;
}

/* --- Process Steps --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  width: 75%;
  height: 2px;
  background: var(--medium-gray);
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step .step-num {
  width: 80px;
  height: 80px;
  background: var(--white);
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  transition: var(--transition);
}

.process-step:hover .step-num {
  background: var(--primary);
  color: var(--white);
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.6;
}

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

.blog-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--light-gray);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.blog-card-image {
  height: 200px;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

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

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-gray);
  margin-bottom: 12px;
}

.blog-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card-body h3 a:hover {
  color: var(--primary);
}

.blog-card-body p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

.blog-card-body .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  top: -200px;
  right: -200px;
}

.cta-section::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  bottom: -150px;
  left: -100px;
}

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

.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-about .logo {
  color: var(--white);
  margin-bottom: 16px;
}

.footer-about p {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col ul li a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

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

/* --- Page Header (internal pages) --- */
.page-header {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 60px;
  background: var(--off-white);
  text-align: center;
  border-bottom: 1px solid var(--light-gray);
}

.page-header .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: 3rem;
  margin-bottom: 16px;
}

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

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  background: var(--off-white);
  border-radius: 12px;
  margin-bottom: 20px;
}

.contact-info-card .icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-card h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.contact-info-card p {
  font-size: 0.9rem;
  color: var(--text-gray);
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--dark-gray);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--medium-gray);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
  background: var(--white);
  color: var(--black);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

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

/* --- Team Grid --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

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

.team-card .team-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  border: 4px solid var(--light-gray);
  transition: var(--transition);
}

.team-card:hover .team-photo {
  border-color: var(--primary);
}

.team-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-bottom: 12px;
}

.team-card-social {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.team-card-social a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-gray);
}

.team-card-social a:hover {
  background: var(--primary);
  color: var(--white);
}

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

.value-card {
  text-align: center;
  padding: 40px 28px;
}

.value-card .icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.value-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

/* --- Blog Detail --- */
.blog-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
}

.blog-detail h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin: 40px 0 16px;
}

.blog-detail h3 {
  font-size: 1.4rem;
  margin: 32px 0 12px;
}

.blog-detail p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--dark-gray);
  margin-bottom: 20px;
}

.blog-detail ul, .blog-detail ol {
  padding-left: 24px;
  margin-bottom: 20px;
}

.blog-detail li {
  list-style: disc;
  margin-bottom: 8px;
  font-size: 1.05rem;
  color: var(--dark-gray);
  line-height: 1.8;
}

.blog-detail img {
  border-radius: 12px;
  margin: 24px 0;
}

/* --- Services Detail --- */
.service-detail {
  padding: 40px;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 16px;
  margin-bottom: 32px;
}

.service-detail h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.service-detail p {
  font-size: 0.95rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 16px;
}

.service-detail ul {
  padding-left: 0;
}

.service-detail ul li {
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--dark-gray);
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-detail ul li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
}

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

.pricing-card {
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  padding: 4px 20px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin: 12px 0;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-gray);
}

.pricing-card ul {
  margin: 24px 0;
  text-align: left;
}

.pricing-card ul li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--dark-gray);
  border-bottom: 1px solid var(--light-gray);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-card ul li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

/* --- Newsletter --- */
.newsletter {
  background: var(--off-white);
  padding: 60px 0;
  text-align: center;
}

.newsletter h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.newsletter p {
  color: var(--text-gray);
  margin-bottom: 24px;
}

.newsletter-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: 12px;
}

.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--medium-gray);
  border-radius: 50px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--primary);
}

/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--light-gray);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 1.05rem;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--black);
  font-family: var(--font-sans);
}

.faq-question .icon {
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding-bottom: 20px;
  font-size: 0.95rem;
  color: var(--text-gray);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero h1 { font-size: 2.8rem; }
  
  .hero-image { order: -1; }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .process-grid::before { display: none; }

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

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

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

  .pricing-card.featured {
    transform: scale(1);
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }

  .hero { padding-top: calc(var(--header-height) + 40px); padding-bottom: 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }

  .section-padding { padding: 60px 0; }
  .section-header h2 { font-size: 2rem; }

  .services-grid,
  .cases-grid,
  .blog-grid,
  .values-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cta-section h2 { font-size: 2rem; }

  .page-header h1 { font-size: 2.2rem; }

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

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

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

  .newsletter-form {
    flex-direction: column;
  }

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

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .stats-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .trust-logos { gap: 30px; }
}