/* AI Foundry - Modern Professional Stylesheet */

/* ===== CSS Variables ===== */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --secondary-color: #0ea5e9;
  --accent-color: #8b5cf6;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --border-color: #e5e7eb;
  --success-color: #10b981;
  --error-color: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: var(--transition);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-wide {
  max-width: 1400px;
}

/* ===== Header & Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.logo img {
  width: 45px;
  height: 45px;
  object-fit: contain;
}

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

.nav-menu a {
  color: var(--text-dark);
  font-weight: 500;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
  pointer-events: none;
}

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

.nav-menu a:hover {
  color: var(--primary-color);
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-block;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-block;
}

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 0.4rem;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== Hero Section ===== */
.hero {
  padding: 10rem 0 6rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
  margin-top: 65px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../img/img_hero.jpg') center/cover;
  opacity: 0.15;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text h1 {
  color: white;
  margin-bottom: 1.5rem;
}

.hero-text p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

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

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

.hero-buttons .btn-primary:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
}

.hero-buttons .btn-secondary {
  border-color: white;
  color: white;
}

.hero-buttons .btn-secondary:hover {
  background: white;
  color: var(--primary-color);
}

.hero-image img {
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
}

/* ===== Section Styles ===== */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-subtitle {
  color: var(--primary-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
}

.bg-light {
  background: var(--bg-light);
}

/* ===== Features/Services Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: var(--transition);
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: white;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-light);
}

.feature-card .btn-secondary {
  margin-top: 1rem;
}

/* ===== Team Grid ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.team-member {
  text-align: center;
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.5rem;
  border: 4px solid var(--primary-color);
}

.team-member h4 {
  margin-bottom: 0.5rem;
}

.team-member .role {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ===== Blog Grid ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.blog-card {
  background: var(--bg-white);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.blog-card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.1);
}

.blog-card-content {
  padding: 2rem;
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.blog-card h3 {
  margin-bottom: 1rem;
}

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

.blog-card p {
  margin-bottom: 1.5rem;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.read-more:hover {
  gap: 1rem;
}

/* ===== Article Page ===== */
.article-header {
  padding: 10rem 0 4rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
  margin-top: 65px;
}

.article-header h1 {
  color: white;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  opacity: 0.9;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.article-featured-image {
  width: 100%;
  height: 400px;
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: 3rem;
}

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

.article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
}

.article-content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.article-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 0.75rem;
  color: var(--text-light);
}

/* ===== Contact Form ===== */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-error {
  color: var(--error-color);
  font-size: 0.875rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: var(--error-color);
}

.form-group.error .form-error {
  display: block;
}

.map-container {
  width: 100%;
  height: 400px;
  background: var(--bg-light);
  border-radius: 1rem;
  overflow: hidden;
  margin-top: 3rem;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ===== Stats Section ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 2rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-light);
  font-size: 1.1rem;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  text-align: center;
  padding: 5rem 2rem;
  border-radius: 2rem;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.cta-section h2 {
  color: white;
  margin-bottom: 1.5rem;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.cta-section .btn-primary:hover {
  background: var(--bg-light);
}

/* ===== Footer ===== */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h4 {
  color: white;
  margin-bottom: 1.5rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.75rem;
}

.footer-section a:hover {
  color: white;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== Cookie Banner ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--text-dark);
  color: white;
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  z-index: 9999;
  display: none;
}

.cookie-banner.active {
  display: block;
}

.cookie-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.cookie-text {
  flex: 1;
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
}

.cookie-buttons button {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

.btn-accept {
  background: var(--success-color);
  color: white;
}

.btn-decline {
  background: transparent;
  border: 2px solid white;
  color: white;
}

/* ===== Privacy & Legal Pages ===== */
.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.legal-content h2 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.legal-content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.legal-content ul,
.legal-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.legal-content ul {
  list-style: disc;
}

.legal-content ol {
  list-style: decimal;
}

.legal-content li {
  margin-bottom: 0.75rem;
  color: var(--text-light);
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 65px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 65px);
    background: var(--bg-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
  }

  .nav-menu.active {
    left: 0;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-image {
    order: -1;
  }

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

  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 6rem 0 4rem;
  }

  section {
    padding: 3rem 0;
  }

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

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

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

  .hero-buttons {
    flex-direction: column;
  }

  .cookie-buttons {
    width: 100%;
    flex-direction: column;
  }

  .cookie-buttons button {
    width: 100%;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }