/* ============================================
   A3K WEBSITE - Variables & Base
   ============================================ */
:root {
  --a3k-blue: #1e3a8a;
  --a3k-blue-dark: #172554;
  --a3k-green: #22c55e;
  --a3k-white: #ffffff;
  --a3k-light: #f8fafc;
  --a3k-gray-200: #e2e8f0;
  --a3k-gray-300: #cbd5e1;
  --a3k-gray-400: #94a3b8;
  --a3k-gray-700: #334155;
  --a3k-gray-800: #1e293b;
  --text-dark: #0f172a;
  --text-light: #64748b;
  --white: #ffffff;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--a3k-white);
  color: var(--text-dark);
  line-height: 1.6;
}

.a3k-landing {
  min-height: 100vh;
  background: var(--a3k-white);
}

/* ============================================
   NAVIGATION
   ============================================ */
.a3k-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-brand .logo-a3k {
  height: 40px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  cursor: pointer;
}

.nav-links a:hover {
  color: var(--a3k-blue);
}

.nav-links .nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--a3k-blue), var(--a3k-blue-dark));
  color: var(--white);
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.nav-links .nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(30, 58, 138, 0.3);
  color: var(--white);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  min-height: 100vh;
  padding: 6rem 4rem 2rem;
  background:
    linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(23, 37, 84, 0.9) 100%),
    url('img/a3k_background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: var(--a3k-green);
  border: none;
  border-radius: 50px;
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
  animation: pulse-badge 2s ease-in-out infinite;
}

.hero-badge i {
  font-size: 1rem;
}

@keyframes pulse-badge {
  0%, 100% {
    box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
  }
  50% {
    box-shadow: 0 4px 30px rgba(34, 197, 94, 0.6);
  }
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, #93c5fd 0%, var(--a3k-green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--a3k-blue), var(--a3k-blue-dark));
  color: var(--white);
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(30, 58, 138, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.2);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-card {
  position: relative;
  width: 100%;
  max-width: 450px;
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.1);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--a3k-gray-200);
  font-size: 0.9rem;
  color: var(--text-light);
}

.status-dot {
  width: 10px;
  height: 10px;
  background: var(--a3k-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--a3k-light);
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.tech-item i {
  font-size: 1.25rem;
  color: var(--a3k-blue);
}

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  animation: float 3s ease-in-out infinite;
}

.floating-badge i {
  color: var(--a3k-green);
}

.badge-1 {
  top: -20px;
  right: -30px;
}

.badge-2 {
  bottom: -20px;
  left: -30px;
  animation-delay: 1.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Hero Stats */
.hero-stats {
  max-width: 1200px;
  margin: 2rem auto 0;
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding: 1.5rem 2rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

.stat-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.stat-value {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.5rem;
  min-height: 50px;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.swiss-flag {
  height: 40px;
  object-fit: contain;
}

/* ============================================
   EXPERTISE SECTION
   ============================================ */
.expertise-section {
  padding: 6rem 2rem;
  background: var(--a3k-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(30, 58, 138, 0.1);
  border: 1px solid rgba(30, 58, 138, 0.15);
  border-radius: 50px;
  color: var(--a3k-blue);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

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

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

.expertise-card {
  position: relative;
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
  overflow: hidden;
}

.expertise-card:hover {
  border-color: var(--a3k-gray-300);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-5px);
}

.expertise-icon {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: transform 0.3s ease;
  background: rgba(30, 58, 138, 0.1);
}

.expertise-icon i {
  font-size: 1.6rem;
  color: var(--a3k-blue);
}

.expertise-card:nth-child(2) .expertise-icon {
  background: rgba(34, 197, 94, 0.1);
}
.expertise-card:nth-child(2) .expertise-icon i {
  color: var(--a3k-green);
}

.expertise-card:nth-child(3) .expertise-icon {
  background: rgba(245, 158, 11, 0.1);
}
.expertise-card:nth-child(3) .expertise-icon i {
  color: #f59e0b;
}

.expertise-card:nth-child(4) .expertise-icon {
  background: rgba(139, 92, 246, 0.1);
}
.expertise-card:nth-child(4) .expertise-icon i {
  color: #8b5cf6;
}

.expertise-number {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(0, 0, 0, 0.03);
  line-height: 1;
}

.expertise-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
  color: var(--text-dark);
}

.expertise-card > p {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.expertise-tags .tag {
  padding: 0.4rem 0.85rem;
  background: var(--a3k-light);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text-light);
  transition: all 0.2s ease;
}

.expertise-tags .tag:hover {
  background: rgba(30, 58, 138, 0.1);
  border-color: rgba(30, 58, 138, 0.2);
  color: var(--a3k-blue);
}

/* Expertise Logos */
.expertise-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  padding-top: 0.5rem;
}

.expertise-logos img {
  height: 32px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: all 0.3s ease;
}

.expertise-logos img:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

/* HTML5, CSS3 et JavaScript logos - plus grands */
.expertise-logos img[alt="HTML5"],
.expertise-logos img[alt="CSS3"],
.expertise-logos img[alt="JavaScript"] {
  height: 45px;
}

/* ============================================
   SOLUTIONS SECTION
   ============================================ */
.solutions-section {
  padding: 6rem 2rem;
  background: var(--a3k-light);
}

.solutions-section .section-tag {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.15);
  color: var(--a3k-green);
}

.tools-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}

a.tool-card {
  text-decoration: none;
  color: inherit;
}

.tool-card {
  width: calc(33.333% - 1rem);
  display: flex;
  flex-direction: column;
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.tool-card:hover {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-3px);
}

.tool-icon {
  width: 50px;
  height: 50px;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  transition: transform 0.3s ease;
}

.tool-icon i {
  font-size: 1.3rem;
  color: var(--a3k-green);
}

/* Tool logos instead of icons */
.tool-icon.tool-logo {
  background: transparent;
  width: 60px;
  height: 60px;
}

.tool-icon.tool-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.tool-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-dark);
}

.tool-subtitle {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--a3k-green);
  margin-bottom: 0.5rem;
}

.tool-content p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.5;
}

/* ============================================
   REFERENCES SECTION
   ============================================ */
.references-section {
  padding: 6rem 2rem;
  background: var(--a3k-light);
}

.references-section .section-container {
  max-width: 1400px;
}

.categories-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.category-item {
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.category-item:hover {
  border-color: var(--a3k-gray-300);
}

.category-item.expanded {
  border-color: rgba(30, 58, 138, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.category-item.expanded .category-header {
  background: rgba(30, 58, 138, 0.03);
  border-bottom: 1px solid var(--a3k-gray-200);
}

.category-item.expanded .category-icon {
  background: var(--a3k-blue);
}

.category-item.expanded .category-icon i {
  color: white;
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: background 0.2s ease;
}

.category-header:hover {
  background: rgba(30, 58, 138, 0.02);
}

.category-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.category-icon {
  width: 48px;
  height: 48px;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.category-icon i {
  font-size: 1.25rem;
  color: var(--a3k-blue);
  transition: color 0.3s ease;
}

.category-title h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0 0 0.2rem 0;
}

.project-count {
  font-size: 0.8rem;
  color: var(--text-light);
}

.category-toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.category-content {
  padding: 1.5rem;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.project-card {
  background: var(--a3k-light);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 12px;
  padding: 1.25rem;
  transition: all 0.2s ease;
  overflow: hidden;
}

.project-card:hover {
  border-color: rgba(30, 58, 138, 0.2);
  background: var(--a3k-white);
}

.project-image {
  margin: -1.25rem -1.25rem 1rem -1.25rem;
  height: 150px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.project-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 0;
}

.project-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
}

.project-features li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.6;
}

.project-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 4px;
  height: 4px;
  background: var(--a3k-blue);
  border-radius: 50%;
}

.project-tech {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--a3k-gray-200);
}

.project-tech i {
  color: var(--a3k-green);
  font-size: 0.85rem;
  margin-top: 0.1rem;
}

.project-tech span {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.4;
}

.project-pdf {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.project-pdf:hover {
  background: #dc2626;
  color: white;
}

.project-pdf i {
  font-size: 1.1rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
  padding: 8rem 2rem;
  background: var(--a3k-white);
}

.contact-section .section-container {
  max-width: 900px;
}

.contact-card {
  background: var(--a3k-white);
  border: 1px solid var(--a3k-gray-200);
  border-radius: 32px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
  text-align: center;
}

.contact-header {
  margin-bottom: 2.5rem;
}

.contact-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.contact-header p {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 500px;
  margin: 0 auto;
}

.contact-details {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  text-align: left;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon i {
  font-size: 1.2rem;
  color: var(--a3k-blue);
}

.contact-text strong {
  display: block;
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.contact-text span,
.contact-text a {
  font-size: 0.95rem;
  color: var(--text-dark);
  text-decoration: none;
  line-height: 1.5;
  transition: color 0.3s ease;
}

.contact-text a:hover {
  color: var(--a3k-blue);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  padding: 6rem 2rem;
  background: var(--white);
}

.about-section .section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.about-section .section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.about-section .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(30, 58, 138, 0.1);
  border: 1px solid rgba(30, 58, 138, 0.15);
  border-radius: 50px;
  color: var(--a3k-blue);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.about-section h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

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

.about-content {
  max-width: 1100px;
  margin: 0 auto;
}

.about-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-block {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--a3k-light);
  border-radius: 16px;
  border: 1px solid var(--a3k-gray-200);
  transition: all 0.3s ease;
}

.about-block:hover {
  border-color: rgba(30, 58, 138, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.about-icon {
  width: 48px;
  height: 48px;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-icon i {
  font-size: 1.25rem;
  color: var(--a3k-blue);
}

.about-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

.about-info p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.about-info p:last-child {
  margin-bottom: 0;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: sticky;
  top: 100px;
}

.value-card {
  padding: 1.5rem;
  background: var(--a3k-light);
  border-radius: 16px;
  border: 1px solid var(--a3k-gray-200);
  transition: all 0.3s ease;
}

.value-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.value-card.highlight {
  background: linear-gradient(135deg, var(--a3k-blue) 0%, #172554 100%);
  border-color: transparent;
}

.value-card.highlight .value-icon {
  background: rgba(255, 255, 255, 0.2);
}

.value-card.highlight .value-icon i {
  color: white;
}

.value-card.highlight h4 {
  color: white;
}

.value-card.highlight p {
  color: rgba(255, 255, 255, 0.85);
}

.value-icon {
  width: 44px;
  height: 44px;
  background: rgba(30, 58, 138, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.value-icon i {
  font-size: 1.1rem;
  color: var(--a3k-blue);
}

.value-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.a3k-footer {
  padding: 4rem 2rem 2rem;
  background: var(--a3k-gray-800);
  border-top: 1px solid var(--a3k-gray-700);
}

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

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--a3k-gray-700);
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-logo {
  height: 32px;
}

.footer-app-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--a3k-gray-400);
  max-width: 300px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 5rem;
}

.footer-column h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--a3k-gray-300);
  margin-bottom: 1rem;
}

.footer-column a {
  display: block;
  color: var(--a3k-gray-400);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.4rem 0;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--a3k-gray-400);
}

.footer-swiss {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--a3k-gray-400);
}

.swiss-icon {
  height: 20px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 700px;
    margin: 0 auto;
  }

  .hero-subtitle {
    margin: 0 auto 2.5rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .hero-stats {
    gap: 3rem;
  }

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

  .about-main {
    grid-template-columns: 1fr;
  }

  .about-values {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .value-card {
    flex: 1 1 calc(33% - 1rem);
    min-width: 200px;
  }
}

@media (max-width: 992px) {
  .a3k-nav {
    padding: 0.5rem 1rem;
  }

  .nav-links {
    display: none;
  }

  .hero-section {
    padding: 6rem 2rem 3rem;
  }

  .hero-content h1 {
    font-size: 3rem;
  }

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

  .tools-grid .tool-card {
    width: calc(50% - 0.75rem);
  }

  .contact-card {
    padding: 2.5rem;
  }

  .contact-details {
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 2rem;
    padding: 1.5rem;
  }

  .stat-item {
    flex: 1 1 40%;
  }

  .stat-value {
    font-size: 2rem;
  }

  .tools-grid .tool-card {
    width: 100%;
  }

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

  .about-block {
    flex-direction: column;
  }

  .about-values {
    flex-direction: column;
  }

  .value-card {
    flex: 1 1 100%;
  }

  .contact-details {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .footer-main {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}