/* ========================================
   COMTURK CONSULTING — Design System v2
   Premium Consulting Firm Aesthetic
   ======================================== */

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Navy Palette */
  --navy-900: #0A1628;
  --navy-800: #0F1F38;
  --navy-700: #162A4A;
  --navy-600: #1E3A5F;
  --navy-500: #2A4A7A;

  /* Accent */
  --accent: #3B82F6;
  --accent-hover: #2563EB;
  --accent-muted: #60A5FA;
  --accent-bg: rgba(59, 130, 246, 0.08);

  /* Neutrals */
  --white: #FFFFFF;
  --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;

  /* Semantic */
  --green: #10B981;
  --green-50: #ECFDF5;
  --purple: #7C3AED;
  --purple-50: #F5F3FF;
  --amber: #D97706;
  --amber-50: #FFFBEB;
  --cyan: #06B6D4;
  --cyan-50: #ECFEFF;

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-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: 2.75rem;
  --font-size-5xl: 3.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.10);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--gray-700);
  background: var(--white);
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3 {
  font-family: var(--font-serif);
  color: var(--gray-900);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h4,
h5,
h6 {
  font-family: var(--font-sans);
  color: var(--gray-900);
  line-height: 1.3;
  font-weight: 600;
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

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

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

p {
  margin-bottom: var(--space-4);
  color: var(--gray-600);
}

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

/* === LAYOUT === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-900);
}

.btn-primary:hover {
  background: var(--navy-700);
  border-color: var(--navy-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(10, 22, 40, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--navy-900);
  border-color: var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--navy-900);
  background: var(--gray-50);
}

.btn-white {
  background: var(--white);
  color: var(--navy-900);
  border-color: var(--white);
}

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

.btn-xl {
  padding: 18px 44px;
  font-size: var(--font-size-base);
}

.btn-icon {
  font-size: 1.1em;
  transition: transform 0.2s;
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-5) 0;
  transition: all 0.3s ease;
  background: transparent;
}

.site-header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--space-3) 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav-logo {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  white-space: nowrap;
}

.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  font-size: 0.85rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links>a,
.nav-dropdown-trigger {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

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

.nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  opacity: 0.6;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-3);
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  border: 1px solid var(--gray-200);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown-menu.show {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background 0.15s;
  color: var(--gray-700);
  font-size: var(--font-size-sm);
}

.nav-dropdown-menu a:hover {
  background: var(--gray-50);
  color: var(--gray-900);
}

.nav-dropdown-menu a strong {
  font-weight: 600;
}

/* Language switcher */
.lang-switcher {
  display: flex;
  gap: 2px;
}

.lang-btn {
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.2s;
}

.lang-btn.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.lang-btn:hover {
  color: var(--white);
}

.nav-actions .btn {
  padding: 10px 22px;
  font-size: var(--font-size-sm);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* === HERO SECTION (DARK) === */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
  padding: calc(var(--space-32) + 80px) 0 var(--space-32);
  overflow: hidden;
  color: var(--white);
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 80%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-muted);
  margin-bottom: var(--space-6);
}

.hero h1 {
  color: var(--white);
  max-width: 800px;
  margin: 0 auto var(--space-6);
  position: relative;
}

.hero p {
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  position: relative;
}

/* === PAGE HERO (Inner Pages) === */
.page-hero {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-800));
  padding: calc(var(--space-24) + 80px) 0 var(--space-24);
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero .hero-label {
  margin-bottom: var(--space-5);
}

.page-hero h1 {
  color: var(--white);
  font-size: var(--font-size-4xl);
  max-width: 700px;
  margin: 0 auto var(--space-5);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-lg);
  max-width: 560px;
  margin: 0 auto;
}

/* === SECTIONS === */
.section {
  padding: var(--space-24) 0;
}

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

.section-gray {
  background: var(--gray-50);
}

.section-dark {
  background: var(--navy-900);
  color: var(--white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.6);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--gray-500);
}

/* === CARDS === */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-xl);
}

.card p {
  font-size: var(--font-size-sm);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
  color: var(--accent);
}

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

.card-icon-blue {
  color: var(--accent);
  background: var(--accent-bg);
}

.card-icon-green {
  color: var(--green);
  background: rgba(16, 185, 129, 0.08);
}

.card-icon-purple {
  color: var(--purple);
  background: rgba(124, 58, 237, 0.08);
}

.card-icon-amber {
  color: var(--amber);
  background: rgba(217, 119, 6, 0.08);
}

.card-icon-cyan {
  color: var(--cyan);
  background: rgba(6, 182, 212, 0.08);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s;
}

.card-link:hover {
  gap: var(--space-3);
}

/* Grid Layouts */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* === SERVICE PAGE CONTENT === */
.service-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.service-content p {
  line-height: 1.85;
}

/* Service Feature Grid */
.service-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-feature {
  padding: var(--space-8);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  background: var(--white);
  transition: all 0.3s;
}

.service-feature:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-md);
}

.service-feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--accent-bg);
  color: var(--accent);
  margin-bottom: var(--space-5);
}

.service-feature-icon svg {
  width: 20px;
  height: 20px;
}

.service-feature h4 {
  margin-bottom: var(--space-2);
}

.service-feature p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  margin: 0;
}

/* Section gray features */
.section-gray .service-feature {
  background: var(--white);
}

/* === HOW WE WORK / STEPS === */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: var(--gray-200);
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 auto var(--space-6);
  position: relative;
  z-index: 1;
}

.step h4 {
  margin-bottom: var(--space-2);
}

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

/* === INDUSTRY CARDS === */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.industry-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  background: var(--white);
  transition: all 0.3s;
}

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

.industry-card .industry-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  color: var(--navy-900);
}

.industry-card .industry-icon svg {
  width: 24px;
  height: 24px;
}

.industry-card h4 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
}

.industry-card p {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
  margin: 0;
}

/* === TESTIMONIALS === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.testimonial {
  padding: var(--space-10);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  background: var(--white);
}

.testimonial-quote {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  position: relative;
  padding-top: var(--space-8);
}

.testimonial-quote::before {
  content: '\201C';
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--accent);
  line-height: 1;
  font-style: normal;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  background: var(--navy-900);
  color: var(--white);
}

.testimonial-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray-900);
}

.testimonial-role {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
}

/* === TECH PARTNERS === */
.partners {
  text-align: center;
  padding: var(--space-16) 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.partners-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  margin-bottom: var(--space-8);
}

.partners-list {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.partners-list span {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-300);
  letter-spacing: 0.02em;
}

/* === CTA BANNER === */
.cta-banner {
  background: var(--navy-900);
  border-radius: var(--radius-2xl);
  padding: var(--space-20) var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-3xl);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 500px;
  margin: 0 auto var(--space-8);
}

/* === CONTACT PAGE === */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info-card {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  margin-bottom: var(--space-6);
  border: 1px solid var(--gray-200);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--accent-bg);
  color: var(--accent);
}

.contact-info-item h4 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-1);
}

.contact-info-item p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  margin: 0;
}

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

.contact-info-item a:hover {
  text-decoration: underline;
}

/* === CASE STUDY CARDS === */
.case-study-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s;
  background: var(--white);
}

.case-study-card:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.case-study-image {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.case-study-body {
  padding: var(--space-8);
}

.case-study-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.case-study-card h3 {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.case-study-card p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.case-study-metrics {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-200);
}

.case-study-metric strong {
  display: block;
  font-size: var(--font-size-xl);
  color: var(--navy-900);
  font-weight: 700;
}

.case-study-metric span {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--gray-900);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

/* === FOOTER === */
.site-footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand h3 {
  font-family: var(--font-sans);
  color: var(--white);
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: var(--font-size-sm);
}

.footer-col h4 {
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
}

.footer-col ul li {
  margin-bottom: var(--space-3);
}

.footer-col a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom-links a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* === ANIMATIONS === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.stagger-children>* {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.is-visible>*:nth-child(1) {
  transition-delay: 0.05s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(2) {
  transition-delay: 0.1s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(3) {
  transition-delay: 0.15s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(4) {
  transition-delay: 0.2s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(5) {
  transition-delay: 0.25s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(6) {
  transition-delay: 0.3s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(7) {
  transition-delay: 0.35s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.is-visible>*:nth-child(8) {
  transition-delay: 0.4s;
  opacity: 1;
  transform: translateY(0);
}

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

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

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

  .steps::before {
    display: none;
  }

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

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .hero {
    padding: calc(var(--space-24) + 80px) 0 var(--space-24);
  }

  .page-hero {
    padding: calc(var(--space-16) + 80px) 0 var(--space-16);
  }

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

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

  .nav-links,
  .lang-switcher,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-900);
    padding: var(--space-6);
    gap: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .service-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

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

  .service-features {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .cta-banner {
    padding: var(--space-12) var(--space-8);
  }

  .partners-list {
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: var(--font-size-2xl);
  }

  .container {
    padding: 0 var(--space-4);
  }

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

  .case-study-metrics {
    flex-direction: column;
    gap: var(--space-3);
  }
}