/* ================================================
   UNDERCUT ACADEMY - DESIGN SYSTEM
   ================================================ */

/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ================================================
   CSS CUSTOM PROPERTIES
   ================================================ */
:root {
  /* Colors - Dark Theme (Global) */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #121212;
  --color-bg-tertiary: #1a1a1a;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b0b0b0;
  --color-text-muted: #808080;

  /* Accent Colors */
  --color-accent-blue: #0066cc;
  --color-accent-blue-hover: #0052a3;
  --color-accent-red: #dc3545;
  --color-accent-red-hover: #c82333;
  --color-silver: #95a5a6;
  --color-gray-light: #2a2a2a;
  --color-gray-dark: #e0e0e0;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 4rem;

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows - Dark Mode */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-glow-blue: 0 0 20px rgba(0, 102, 204, 0.2);
  --shadow-glow-red: 0 0 20px rgba(220, 53, 69, 0.2);
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-blue);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 0 0 8px 8px;
  z-index: 10000;
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 2px solid white;
  outline-offset: 2px;
}

/* ================================================
   TYPOGRAPHY
   ================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

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

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

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-blue-hover);
}

/* ================================================
   LAYOUT UTILITIES
   ================================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-dark {
  background-color: var(--color-bg-secondary);
}

/* ================================================
   HEADER & NAVIGATION
   ================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: background-color var(--transition-normal);
  border-bottom: 1px solid var(--color-gray-light);
}

.header.scrolled {
  background-color: rgba(10, 10, 10, 1);
  box-shadow: var(--shadow-md);
}

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

.logo {
  height: 50px;
  width: auto;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-primary);
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent-blue);
  transform: translateX(-50%);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-accent-blue);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ================================================
   HERO SECTION
   ================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: var(--header-height);
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.85) 0%, rgba(40, 40, 40, 0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  padding: var(--spacing-xl);
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
  text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  font-weight: 400;
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-accent-blue-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-blue);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent-red);
  border: 2px solid var(--color-accent-red);
}

.btn-outline:hover {
  background: var(--color-accent-red);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-red);
}

/* ================================================
   ABOUT SECTION
   ================================================ */
.about {
  background-color: var(--color-bg-secondary);
}

.about-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.section-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-xl);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: var(--color-accent-blue);
  border-radius: 2px;
}

/* ================================================
   SERVICES SECTION
   ================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.service-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-gray-light);
  border-radius: 16px;
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent-blue);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-blue);
}

.service-card:hover::before {
  opacity: 0.03;
}

.service-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-accent-blue);
  position: relative;
  z-index: 1;
}

.service-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.service-description {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.service-card .btn {
  position: relative;
  z-index: 1;
}

/* ================================================
   PARTNERS SECTION
   ================================================ */
.partners {
  background-color: var(--color-bg-secondary);
}

/* Partners Carousel Wrapper */
.partners-carousel-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
  position: relative;
}

/* Partners Carousel Container */
.partners-carousel {
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Partners Track */
.partners-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease-in-out;
}

/* Partner Card Link Wrapper - needs to be inside track */
.partners-track .partner-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  width: calc((100% - 48px) / 3);
  min-width: calc((100% - 48px) / 3);
  flex-shrink: 0;
}

.partner-card {
  background: var(--color-bg-primary);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-light);
  box-shadow: var(--shadow-sm);
  height: 100%;
}

/* Partner CTA card in carousel needs same sizing */
.partners-track>.partner-card {
  width: calc((100% - 48px) / 3);
  min-width: calc((100% - 48px) / 3);
  flex-shrink: 0;
}

.partner-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-blue);
}

.partner-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.partner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.partner-image .placeholder-icon {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--color-gray-light);
}

.partner-info {
  padding: var(--spacing-md);
}

.partner-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.partner-details {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.partner-division {
  font-size: var(--font-size-sm);
  color: var(--color-accent-blue);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.partner-flags {
  display: flex;
  gap: 6px;
  align-items: center;
}

.partner-flags .fi {
  font-size: 1rem;
  width: 1.5em;
  line-height: 1em;
  border-radius: 3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.partner-placeholder .partner-division {
  color: var(--color-text-muted);
}

/* Partner CTA Card */
.partner-cta {
  border-style: dashed;
  border-color: var(--color-accent-blue);
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.05) 0%, rgba(0, 102, 204, 0.02) 100%);
}

.partner-cta:hover {
  border-style: solid;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.05) 100%);
}

.partner-cta .placeholder-icon {
  color: var(--color-accent-blue);
}

.partner-cta .partner-division {
  color: var(--color-accent-blue);
}

/* Partner Card Link Wrapper (legacy support) */
.partner-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

/* Responsive Partners Carousel */
@media (max-width: 1024px) {

  .partners-track .partner-card-link,
  .partners-track>.partner-card {
    width: calc((100% - 24px) / 2);
    min-width: calc((100% - 24px) / 2);
  }
}

@media (max-width: 768px) {

  .partners-track .partner-card-link,
  .partners-track>.partner-card {
    width: 100%;
    min-width: 100%;
  }

  .partners-carousel-wrapper {
    gap: var(--spacing-sm);
  }
}

/* ================================================
   TESTIMONIALS SECTION
   ================================================ */
.testimonials {
  background-color: var(--color-bg-primary);
}

/* Carousel Wrapper */
.testimonials-carousel-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
  position: relative;
}

/* Carousel Container */
.testimonials-carousel {
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Carousel Track */
.testimonials-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease-in-out;
}

/* Testimonial Cards */
.testimonial-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-gray-light);
  border-radius: 16px;
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  width: calc((100% - 48px) / 3);
  min-width: calc((100% - 48px) / 3);
  flex-shrink: 0;
  box-sizing: border-box;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-blue);
}

.testimonial-content {
  flex: 1;
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: var(--spacing-md);
  color: #ffc107;
}

.testimonial-stars i {
  font-size: 1rem;
}

.testimonial-text {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  color: var(--color-text-secondary);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-gray-light);
}

.author-avatar {
  width: 60px;
  height: 60px;
  min-width: 60px;
  min-height: 60px;
  max-width: 60px;
  max-height: 60px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-avatar img {
  width: 60px;
  height: 60px;
  max-width: 60px;
  max-height: 60px;
  object-fit: cover;
}

.author-avatar i {
  font-size: 3rem;
  color: var(--color-accent-blue);
}

.author-info h4 {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

.author-info span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
}

/* Carousel Arrows */
.carousel-arrow {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--color-bg-primary);
  border: 2px solid var(--color-accent-blue);
  color: var(--color-accent-blue);
  font-size: var(--font-size-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 10;
}

.carousel-arrow:hover {
  background: var(--color-accent-blue);
  color: #ffffff;
  transform: scale(1.1);
  box-shadow: var(--shadow-glow-blue);
}

.carousel-arrow:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.carousel-arrow:disabled:hover {
  background: var(--color-bg-primary);
  color: var(--color-accent-blue);
  box-shadow: none;
}

/* Carousel Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gray-light);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-dot:hover {
  background: var(--color-accent-blue);
  opacity: 0.7;
}

.carousel-dot.active {
  background: var(--color-accent-blue);
  transform: scale(1.2);
}

/* Responsive Carousel */
@media (max-width: 1024px) {
  .testimonial-card {
    width: calc((100% - 24px) / 2);
    min-width: calc((100% - 24px) / 2);
  }
}

@media (max-width: 768px) {
  .testimonial-card {
    width: 100%;
    min-width: 100%;
  }

  .carousel-arrow {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-base);
  }

  .testimonials-carousel-wrapper {
    gap: var(--spacing-sm);
  }
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-gray-light);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-blue);
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  transition: all var(--transition-fast);
  border: 1px solid var(--color-gray-light);
}

.social-link:hover {
  background: var(--color-accent-blue);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-light);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ================================================
   SCROLL TO TOP BUTTON
   ================================================ */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--color-accent-blue);
  border: none;
  border-radius: 50%;
  color: #ffffff;
  font-size: var(--font-size-xl);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--color-accent-blue-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow-blue);
}

/* ================================================
   ANIMATIONS
   ================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* ================================================
   RESPONSIVE DESIGN
   ================================================ */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.5rem;
    --spacing-3xl: 3rem;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: rgba(10, 10, 10, 0.98);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transition: left var(--transition-normal);
    border-right: 1px solid var(--color-gray-light);
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
  }

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

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

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }
}