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

:root {
  --primary-accent: #6366f1;
  --primary-accent-dark: #4f46e5;
  --primary-accent-light: #818cf8;
  --secondary-accent: #ec4899;

  --background-1: #0a0a0a;
  --background-2: #111111;
  --background-3: #1a1a1a;
  --background-card: #141414;
  --background-gradient: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);

  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --border-color: #27272a;
  --border-accent: #3f3f46;

  --shadow-small: 0 1px 3px 0 rgb(0 0 0 / 0.3);
  --shadow-medium: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-large: 0 25px 50px -12px rgb(0 0 0 / 0.6);
  --shadow-glow: 0 0 20px rgb(99 102 241 / 0.3);
}

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

html {
  height: 100%;
  width: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--background-1);
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

h1 {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
}

h2 {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

h4 {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 700px;
  text-align: center;
  margin: 0 auto;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.3s ease;
  text-decoration: none;
}

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

button {
  font-family: 'Inter', sans-serif;
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: 12px;
  background: var(--background-3);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

button:hover::before {
  left: 100%;
}

button:hover {
  background: var(--background-card);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: var(--border-accent);
}

button.cta {
  background: linear-gradient(135deg, var(--primary-accent) 0%, var(--secondary-accent) 100%);
  color: white;
  border: none;
  box-shadow: var(--shadow-glow);
}

button.cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow), var(--shadow-medium);
}

button:focus-visible {
  outline: 2px solid var(--primary-accent);
  outline-offset: 2px;
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 auto;
}

nav {
  display: flex;
  justify-content: center;
  padding: 1.5rem 2rem;
  width: 100%;
  position: fixed;
  top: 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

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

nav .left,
nav .right {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav .left .logo {
  width: 40px;
  height: 40px;
  background: url('logo.svg') no-repeat center center;
  background-size: contain;
  border-radius: 50%;
  position: relative;
  display: block;
}

nav .left .name {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

section {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 8rem 2rem;
  position: relative;
}

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

.hero {
  min-height: 100vh;
  text-align: center;
  padding: 12rem 2rem 8rem;
  position: relative;
  background: var(--background-gradient);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 25% 25%, var(--primary-accent) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, var(--secondary-accent) 0%, transparent 50%);
  opacity: 0.1;
  filter: blur(100px);
}

.hero .header-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 2px;
  height: 30px;
  background: var(--primary-accent);
  position: relative;
}

.scroll-arrow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -5px;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--primary-accent);
  border-bottom: 2px solid var(--primary-accent);
  transform: rotate(45deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* Problems Section */
.problems {
  background: var(--background-2);
  width: 100vw;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 2rem;
  width: 100%;
}

.problem-card {
  background: var(--background-card);
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-color);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

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

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

.problem-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  filter: grayscale(1);
  transition: filter 0.4s ease;
}

.problem-card:hover .problem-icon {
  filter: grayscale(0);
}

/* Services Section - Flip Cards */
.services {
  background: var(--background-1);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  width: 100%;
  position: relative;
}

.services-grid .flip-card:nth-child(10),
.services-grid .flip-card:nth-child(11) {
  grid-column: span 1;
}

.services-grid .flip-card:nth-child(10) {
  margin-left: auto;
  margin-right: 0.625rem;
}

.services-grid .flip-card:nth-child(11) {
  margin-left: 0.625rem;
  margin-right: auto;
}

.flip-card {
  background-color: transparent;
  width: 100%;
  height: 400px;
  perspective: 1000px;
  position: relative;
  z-index: 1;
  transition: margin-bottom 0.3s ease, z-index 0s;
}

.flip-card:hover {
  z-index: 100;
  margin-bottom: 4rem;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  cursor: pointer;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  background: var(--background-card);
  border-radius: 20px;
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: var(--shadow-medium);
  overflow: hidden;
  position: relative;
}

.flip-card-front::before,
.flip-card-back::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-accent) 0%, var(--secondary-accent) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.flip-card:hover .flip-card-front::before,
.flip-card:hover .flip-card-back::before {
  opacity: 0.05;
}

.flip-card-back {
  transform: rotateY(180deg);
  justify-content: flex-start;
  text-align: left;
  padding: 2rem;
  min-height: 400px;
}

.service-icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 2;
  filter: grayscale(1);
  transition: filter 0.4s ease;
}

.flip-card:hover .service-icon {
  filter: grayscale(0);
}

.flip-card-back ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  flex-grow: 1;
  position: relative;
  z-index: 2;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.flip-card-back li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.5rem;
  transition: color 0.3s ease;
  font-size: 0.9rem;
  line-height: 1.4;
}

.flip-card-back li:before {
  content: "→";
  color: var(--primary-accent);
  font-weight: bold;
  position: absolute;
  left: 0;
  transition: transform 0.3s ease;
}

.flip-card-back li:hover {
  color: var(--text-primary);
}

.flip-card-back li:hover:before {
  transform: translateX(4px);
}

.contact-btn {
  margin-top: auto;
  width: 100%;
  background: linear-gradient(135deg, var(--primary-accent) 0%, var(--secondary-accent) 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-glow);
  min-height: 48px;
  font-size: 1rem;
  line-height: 1.2;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow), var(--shadow-medium);
}

/* Call to Action */
.call-to-action {
  background: var(--background-2);
  width: 100vw;
  border-top: 1px solid var(--border-color);
}

.call-to-action .callout-container {
  width: 100%;
  border-radius: 24px;
  background: var(--background-card);
  padding: 5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-large);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.callout-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-accent) 0%, var(--secondary-accent) 100%);
  opacity: 0.03;
}

.callout-container .text {
  position: relative;
  z-index: 2;
}

.callout-container .buttons {
  position: relative;
  z-index: 2;
}

.contact-info {
  margin-top: 2rem;
  padding: 2rem;
  background: var(--background-3);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  position: relative;
  z-index: 2;
}

.contact-info p {
  margin: 0.5rem 0;
  font-size: 1.1rem;
}

.contact-info a {
  color: var(--primary-accent);
  font-weight: 600;
  text-decoration: none;
}

.contact-info a:hover {
  color: var(--primary-accent-light);
}

.guarantee-badge,
.global-reach {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--background-3);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.guarantee-badge::before,
.global-reach::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
}

.guarantee-badge h3,
.global-reach h3 {
  color: var(--text-primary);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.guarantee-badge p,
.global-reach p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.contact-form {
  margin: 2rem 0;
  padding: 2rem;
  background: var(--background-3);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 500px;
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
}

.contact-form h3 {
  color: var(--text-primary);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  font-weight: 600;
  text-align: center;
}

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  background: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form button[type="submit"] {
  width: 100%;
  margin-top: 1rem;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
}

/* Footer */
footer {
  background: var(--background-3);
  padding: 5rem 2rem 2rem;
  width: 100%;
  display: flex;
  justify-content: center;
  border-top: 1px solid var(--border-color);
}

footer .inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
  align-items: center;
  text-align: center;
}

footer .brand-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

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

footer .social-links {
  display: flex;
  gap: 1.5rem;
}

footer .legal-section {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

footer .inner .column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

footer .inner .column .logo {
  width: 40px;
  height: 40px;
  background: url('logo.svg') no-repeat center center;
  background-size: contain;
  border-radius: 50%;
  position: relative;
  display: block;
}

footer .inner .column .name {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

footer .inner .column a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

footer .inner .column a:hover {
  color: var(--primary-accent);
}

footer .column p {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) and (min-width: 769px) {
  .problems-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(4, 1fr);
  }

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

  .services-grid .flip-card:nth-child(10),
  .services-grid .flip-card:nth-child(11) {
    margin-left: auto;
    margin-right: auto;
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }

  h2 {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  h4 {
    font-size: 1.1rem;
    line-height: 1.5;
    padding: 0 1rem;
  }

  nav .left,
  nav .right {
    gap: 1rem;
  }

  nav .left .name {
    font-size: 1rem;
  }

  /* Mobile flip card improvements */
  .flip-card {
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    z-index: 1;
  }

  .flip-card:hover .flip-card-inner {
    transform: none;
  }

  .flip-card.flipped {
    z-index: 100;
    margin-bottom: 4rem;
  }

  .flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
  }

  .flip-card-front,
  .flip-card-back {
    touch-action: manipulation;
  }

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

  .services-grid .flip-card:nth-child(10),
  .services-grid .flip-card:nth-child(11) {
    margin-left: 0;
    margin-right: 0;
  }

  .problems-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .problem-card {
    padding: 2rem 1.5rem;
  }

  .problem-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
  }

  section {
    padding: 5rem 1rem;
    gap: 3rem;
  }

  .problems {
    padding: 5rem 1rem;
  }

  .hero {
    padding: 8rem 1rem 5rem;
    min-height: 90vh;
  }

  .flip-card {
    height: 350px;
  }

  .flip-card-front,
  .flip-card-back {
    padding: 2rem 1.5rem;
  }

  .service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
  }

  .flip-card-back {
    padding: 1.5rem;
  }

  .flip-card-back h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
    text-align: center;
  }

  .flip-card-back li {
    font-size: 0.9rem;
    padding: 0.4rem 0;
    line-height: 1.5;
  }

  .callout-container {
    padding: 2.5rem 1.5rem !important;
    gap: 2rem;
  }

  .guarantee-badge,
  .global-reach {
    margin: 1.5rem 0;
    padding: 1.2rem;
  }

  .contact-form {
    padding: 1.5rem;
    margin: 1.5rem 0;
  }

  .buttons {
    gap: 1rem;
  }

  footer .inner {
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  nav .left a,
  nav .right button:not(.cta) {
    display: none;
  }

  nav .right .cta {
    padding: 10px 16px;
    font-size: 0.9rem;
  }

  .buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .buttons button {
    width: 100%;
    max-width: 300px;
  }

  .flip-card {
    height: 320px;
  }

  .flip-card-front,
  .flip-card-back {
    padding: 1.5rem 1rem;
  }

  .service-icon {
    font-size: 2.5rem;
  }

  h1 {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  h2 {
    font-size: 1.6rem;
  }

  h4 {
    font-size: 1rem;
    padding: 0 0.5rem;
  }

  .problem-card {
    padding: 1.5rem 1rem;
  }

  .problem-icon {
    font-size: 2.5rem;
  }

  section {
    padding: 4rem 0.5rem;
  }

  .problems {
    padding: 4rem 0.5rem;
  }

  .hero {
    padding: 7rem 0.5rem 4rem;
  }

  .callout-container {
    padding: 2rem 1rem !important;
  }

  .contact-form {
    padding: 1rem;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 0.8rem;
  }
}

/* Animation for cards on scroll */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* Card hover effects are handled in JavaScript files */