/* styles.css */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #F5F7FA;
  color: #1C2526;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  cursor: pointer;
}

/* Colors */
:root {
  --sfe-blue: #33C3F0;
  --sfe-dark: #1A1F2C;
  --sfe-purple: #8B5CF6;
  --sfe-gray: #8E9196;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --white: #FFFFFF;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.3s;
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
}

.header-container {
  padding: 1rem 0;
}

@media (min-width: 768px) {
  .header-container {
    padding: 1.25rem 0;
  }
}

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

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sfe-dark);
}

.logo-highlight {
  color: var(--sfe-blue);
}

.nav-desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.nav-link {
  color: var(--gray-700);
  font-weight: 500;
  transition: color 0.15s;
}

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

.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  color: var(--gray-700);
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.menu-icon, .close-icon {
  width: 1.5rem;
  height: 1.5rem;
}

.hidden {
  display: none;
}

.mobile-menu {
  background-color: var(--white);
}

.mobile-menu-content {
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-link {
  color: var(--gray-700);
  font-weight: 500;
  transition: color 0.15s;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 4rem;
  position: relative;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-video {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(26, 31, 44, 0.7), rgba(26, 31, 44, 0.5));
  z-index: 10;
}

.hero-container {
  position: relative;
  z-index: 20;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text {
  animation: fade-in 0.6s ease-out;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--white);
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

.hero-highlight {
  background: linear-gradient(to right, var(--sfe-blue), var(--sfe-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--gray-200);
  max-width: 42rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.25rem;
  }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 500;
  transition: all 0.15s;
}

.btn-primary {
  background-color: var(--sfe-blue);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #2BA8D0;
}

.btn-secondary {
  border: 1px solid var(--white);
  color: var(--white);
}

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

.btn-icon {
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
}

.hero-image {
  display: none;
}

@media (min-width: 1024px) {
  .hero-image {
    display: block;
  }
}

.image-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: 0.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  aspect-ratio: 16 / 9;
}

.carousel-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s;
}

.carousel-image.active {
  opacity: 1;
}

.carousel-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(1.1);
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(26, 31, 44, 0.4), rgba(26, 31, 44, 0.3));
}

.decor-circle {
  position: absolute;
  border-radius: 50%;
}

.decor-circle-top {
  top: -3rem;
  right: -2rem;
  width: 6rem;
  height: 6rem;
  background-color: rgba(51, 195, 240, 0.3);
  filter: blur(40px);
}

.decor-circle-bottom {
  bottom: -2rem;
  left: -3rem;
  width: 8rem;
  height: 8rem;
  background-color: rgba(139, 92, 246, 0.3);
  filter: blur(64px);
}

@keyframes fade-in {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Services Section */
.services {
  position: relative;
  padding: 4rem 0;
  overflow: hidden;
}

@media (min-width: 768px) {
  .services {
    padding: 6rem 0;
  }
}

.services-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.services-video {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.services-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.8));
  z-index: 10;
}

.services-container {
  position: relative;
  z-index: 20;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 48rem;
  margin: 0 auto;
}

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

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--gray-200);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s;
}

.service-card:hover {
  transform: scale(1.02);
  border-color: rgba(51, 195, 240, 0.5);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.service-icon {
  display: inline-flex;
  padding: 0.75rem;
  background: linear-gradient(to bottom right, rgba(51, 195, 240, 0.1), rgba(139, 92, 246, 0.1));
  border-radius: 0.5rem;
  margin-bottom: 1.25rem;
}

.icon-svg {
  width: 1.75rem;
  height: 1.75rem;
}

.service-card:nth-child(1) .icon-svg, .service-card:nth-child(3) .icon-svg {
  stroke: var(--sfe-blue);
}

.service-card:nth-child(2) .icon-svg {
  stroke: var(--sfe-purple);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-description {
  color: var(--gray-600);
}

.tabs {
  margin-top: 4rem;
}

.tab-buttons {
  display: flex;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(4px);
  padding: 0.25rem;
  border-radius: 0.5rem;
  width: 100%;
}

.tab-button {
  flex: 1;
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  text-align: center;
  border-radius: 0.25rem;
  transition: all 0.15s;
}

.tab-button.active {
  background-color: var(--white);
  color: var(--sfe-dark);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.tab-button:hover, .tab-button:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--sfe-blue);
}

.tab-content {
  margin-top: 0.5rem;
  border-radius: 1rem;
  overflow: hidden;
  min-height: 400px;
  position: relative;
}

.tab-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.tab-video {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.tab-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(26, 31, 44, 0.8), rgba(26, 31, 44, 0.6));
}

.tab-inner {
  position: relative;
  z-index: 10;
  padding: 2rem;
}

@media (min-width: 1024px) {
  .tab-inner {
    padding: 3rem;
  }
}

.tab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .tab-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.tab-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .tab-title {
    font-size: 1.875rem;
  }
}

.tab-description {
  color: var(--gray-100);
  margin-bottom: 1.5rem;
}

.tab-features {
  display: none;
}

@media (min-width: 1024px) {
  .tab-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
}

.feature-card {
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  color: var(--white);
}

.feature-card:nth-child(2) {
  margin-top: 1.5rem;
}

.feature-icon {
  width: 1.5rem;
  height: 1.5rem;
  margin-bottom: 0.5rem;
}

.feature-card:nth-child(1) .feature-icon {
  stroke: var(--sfe-blue);
}

.feature-card:nth-child(2) .feature-icon {
  stroke: var(--sfe-purple);
}

.feature-title {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.feature-description {
  font-size: 0.875rem;
  color: var(--gray-200);
}

/* About Section */
.about {
  padding: 4rem 0;
  background-color: var(--gray-100);
}

@media (min-width: 768px) {
  .about {
    padding: 6rem 0;
  }
}

.about-container {
  position: relative;
}

.founders-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .founders-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.founder-card {
  background-color: var(--white);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s;
}

.founder-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.founder-image {
  height: 10rem;
  background: linear-gradient(to bottom right, var(--sfe-blue), var(--sfe-purple));
  position: relative;
}

.founder-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--white);
  opacity: 0.25;
}

.founder-content {
  padding: 1.5rem;
}

.founder-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.founder-title {
  font-weight: 500;
  color: var(--sfe-blue);
  margin-bottom: 1rem;
}

.founder-description {
  color: var(--gray-600);
  margin-bottom: 1.25rem;
}

.founder-link {
  display: inline-flex;
  align-items: center;
  color: var(--sfe-gray);
  transition: color 0.15s;
}

.founder-link:hover {
  color: var(--sfe-blue);
}

.founder-icon {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}

.story {
  margin-top: 4rem;
}

.story-card {
  background-color: var(--white);
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  padding: 2rem;
}

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

@media (min-width: 1024px) {
  .story-grid {
    grid-template-columns: 1fr 2fr;
  }
}

.story-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.story-description {
  color: var(--gray-700);
  margin-bottom: 1rem;
}

/* Contact Section */
.contact {
  padding: 4rem 0;
  background-color: var(--white);
}

@media (min-width: 768px) {
  .contact {
    padding: 6rem 0;
  }
}

.contact-container {
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-form {
  background-color: var(--gray-100);
  padding: 2rem;
  border-radius: 0.75rem;
}

.form-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.form-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: all 0.15s;
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: transparent;
  box-shadow: 0 0 0 2px var(--sfe-blue);
}

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

.form-message {
  padding: 0.75rem;
  background-color: #F0FDF4;
  color: #15803D;
  border-radius: 0.5rem;
  text-align: center;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
}

.info-icon {
  width: 1.5rem;
  height: 1.5rem;
  stroke: var(--sfe-blue);
  margin-right: 0.75rem;
  margin-top: 0.25rem;
}

.info-label {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.info-text {
  color: var(--gray-700);
}

.contact-cta {
  background: linear-gradient(to bottom right, var(--sfe-blue), var(--sfe-purple));
  padding: 2rem;
  border-radius: 0.75rem;
  color: var(--white);
}

.cta-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-description {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.25rem;
}

.btn-cta {
  background-color: var(--white);
  color: var(--sfe-blue);
  padding: 0.5rem 1.5rem;
  border-radius: 0.5rem;
}

.btn-cta:hover {
  background-color: rgba(255, 255, 255, 0.9);
}

/* Footer */
.footer {
  background-color: var(--sfe-dark);
  color: var(--white);
  padding: 3rem 0;
}

.footer-container {
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-logo-highlight {
  color: var(--sfe-blue);
}

.footer-description {
  color: var(--gray-300);
  margin-bottom: 1.25rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  color: var(--gray-300);
  transition: color 0.15s;
}

.social-link:hover {
  color: var(--sfe-blue);
}

.social-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  color: var(--gray-300);
  transition: color 0.15s;
}

.footer-link:hover {
  color: var(--sfe-blue);
}

.newsletter-form {
  display: flex;
}

.newsletter-input {
  flex: 1;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem 0 0 0.5rem;
  border: none;
  font-size: 1rem;
  color: var(--sfe-dark);
}

.newsletter-button {
  background-color: var(--sfe-blue);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0 0.5rem 0.5rem 0;
  transition: background-color 0.15s;
}

.newsletter-button:hover {
  background-color: #2BA8D0;
}

.newsletter-icon {
  width: 1.25rem;
  height: 1.25rem;
  stroke: var(--white);
}

.footer-bottom {
  border-top: 1px solid #374151;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  text-align: center;
}

.footer-copyright {
  color: var(--gray-400);
}

/* 404 Page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--gray-100);
}

.error-content {
  text-align: center;
}

.error-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.error-description {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: 1rem;
}

.error-link {
  color: #3B82F6;
  text-decoration: underline;
  transition: color 0.15s;
}

.error-link:hover {
  color: #1D4ED8;
}