/* ===== VARIABLES ===== */
:root {
  --primary: #1B3A5C;
  --primary-dark: #122840;
  --primary-light: #2A5080;
  --accent: #3B82F6;
  --accent-hover: #2563EB;
  --accent-light: #EFF6FF;
  --accent-subtle: #DBEAFE;
  --gold: #D4A853;
  --white: #FFFFFF;
  --off-white: #F7F9FC;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --max-width: 1200px;
  --section-padding: 96px 24px;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  text-align: center;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-white {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--gray-100);
  border-color: var(--gray-100);
  transform: translateY(-1px);
}

/* ===== SECTION STYLES ===== */
.section-label {
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 18px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 640px;
  line-height: 1.8;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  padding: 0 24px;
  transition: box-shadow 0.3s;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 48px;
  width: auto;
}

.nav { display: flex; align-items: center; gap: 28px; }

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
  position: relative;
}
.nav a:hover { color: var(--primary); }
.nav a:not(.btn):hover::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav .btn {
  padding: 10px 24px;
  font-size: 0.85rem;
}
.nav .btn:hover::after { display: none; }

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

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-800);
  margin: 5px 0;
  transition: all 0.3s;
  border-radius: 2px;
}

/* ===== HERO ===== */
.hero {
  padding: 150px 24px 100px;
  background: linear-gradient(160deg, var(--white) 0%, var(--off-white) 40%, var(--accent-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 500px;
}

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

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-img {
  width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

/* ===== INDUSTRIES ===== */
.industries {
  padding: var(--section-padding);
  background: var(--white);
}

.industries-header {
  text-align: center;
  margin-bottom: 56px;
}

.industries-header .section-subtitle { margin: 0 auto; }

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.industry-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.25s ease;
}

.industry-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.industry-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.industry-card .icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.industry-card ul { padding-left: 0; }

.industry-card li {
  font-size: 0.9rem;
  color: var(--gray-500);
  padding: 5px 0;
  padding-left: 22px;
  position: relative;
  line-height: 1.6;
}

.industry-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* ===== SERVICES ===== */
.services {
  padding: var(--section-padding);
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.services-header {
  text-align: center;
  margin-bottom: 56px;
  position: relative;
}

.services .section-label { color: var(--accent-subtle); }
.services .section-title { color: var(--white); }
.services .section-subtitle { color: rgba(255,255,255,0.6); margin: 0 auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
  position: relative;
}

.service-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.25s ease;
  backdrop-filter: blur(4px);
}

.service-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--white);
}

.service-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
}

.services-cta { text-align: center; position: relative; }

/* ===== METHODOLOGY ===== */
.methodology {
  padding: var(--section-padding);
  background: var(--off-white);
}

.methodology-header {
  text-align: center;
  margin-bottom: 56px;
}

.methodology-header .section-subtitle { margin: 0 auto; }

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
  position: relative;
}

.methodology-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: var(--gray-200);
  z-index: 0;
}

.method-card {
  text-align: center;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}

.method-number {
  width: 56px;
  height: 56px;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 20px;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  position: relative;
}

.method-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.method-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.7;
}

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

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: var(--section-padding);
  background: var(--white);
}

.testimonials-header {
  text-align: center;
  margin-bottom: 56px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.25s ease;
  position: relative;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.testimonial-card .quote {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 4px;
  line-height: 1;
  font-family: Georgia, serif;
}

.testimonial-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-card .attribution {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  font-style: normal;
  letter-spacing: 0.01em;
}

/* ===== RESULTS ===== */
.results {
  padding: var(--section-padding);
  background: var(--off-white);
}

.results-header {
  text-align: center;
  margin-bottom: 56px;
}

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

.result-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all 0.25s ease;
}

.result-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.result-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 1.5rem;
}

.result-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.result-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== CONTACT ===== */
.contact {
  padding: var(--section-padding);
  background: var(--white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

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

.contact-info > p {
  color: var(--gray-500);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-details { display: flex; flex-direction: column; gap: 24px; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-detail .detail-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.contact-detail .detail-label {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.contact-detail .detail-value {
  font-size: 0.95rem;
  color: var(--gray-800);
  font-weight: 500;
}

.contact-detail .detail-value a:hover {
  color: var(--accent);
}

.contact-form {
  background: var(--white);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
}

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--gray-900);
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--gray-800);
  background: var(--gray-50);
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea { resize: vertical; min-height: 110px; }

.contact-form .btn {
  width: 100%;
  padding: 15px;
  font-size: 1rem;
  margin-top: 8px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 32px;
}

.form-success h3 {
  color: var(--accent);
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.form-success p { color: var(--gray-500); }

/* ===== FOOTER ===== */
.footer {
  background: var(--primary-dark);
  color: var(--white);
  padding: 64px 24px 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 4px; }

.footer-logo-img {
  height: 40px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin-top: 12px;
  line-height: 1.6;
}

.footer h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 18px;
  color: rgba(255,255,255,0.4);
}

.footer ul li {
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

.footer ul a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
}

/* ===== MOBILE NAV ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 24px;
  z-index: 999;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-lg);
}

.mobile-nav.active { display: flex; }

.mobile-nav a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}

.mobile-nav a:last-child { border-bottom: none; }

.mobile-nav .btn {
  text-align: center;
  margin-top: 8px;
  border-bottom: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .results-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 968px) {
  .nav { display: none; }
  .mobile-toggle { display: block; }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content p { margin: 0 auto 32px; }
  .hero-buttons { justify-content: center; }
  .hero-image { order: -1; }

  .methodology-grid { grid-template-columns: repeat(2, 1fr); }
  .methodology-grid::before { display: none; }

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

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

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

@media (max-width: 640px) {
  :root { --section-padding: 64px 20px; }

  .section-title { font-size: 1.85rem; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero { padding: 120px 20px 64px; }

  .services-grid { grid-template-columns: 1fr; }
  .methodology-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .contact-form { padding: 28px 20px; }
}