:root {
  /* Colors */
  --color-primary: #0f172a; /* Dark Blue/Slate */
  --color-secondary: #3b82f6; /* Bright Blue Accent */
  --color-text: #334155; /* Slate 700 */
  --color-text-light: #64748b; /* Slate 500 */
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc; /* Slate 50 */
  --color-border: #e2e8f0; /* Slate 200 */
  --color-white: #ffffff;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Spacing */
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --container-width: 1200px;
  --header-height: 70px;
  
  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.2;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

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

.section-title {
  font-size: 2rem;
  font-weight: 700;
  position: relative;
  display: inline-block;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-secondary);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn--primary:hover {
  background-color: #2563eb;
}

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

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

.grid {
  display: grid;
  gap: 2rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  display: flex;
  align-items: center;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo__img {
  max-height: 50px;
  width: auto;
}

.nav__list {
  display: flex;
  gap: 2rem;
}

.nav__link {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

.nav__link:hover {
  color: var(--color-secondary);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  margin-top: var(--header-height);
  height: calc(100vh - var(--header-height));
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.8)), url('https://images.unsplash.com/photo-1497366216548-37526070297c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  padding: 0 1rem;
}

.hero__content {
  max-width: 800px;
}

.hero__title {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--color-white);
  font-weight: 700;
}

.hero__text {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* About Section */
.about {
  background-color: var(--color-bg);
}

.about__card {
  background-color: var(--color-bg-alt);
  padding: 3rem;
  border-radius: 8px;
  border-left: 5px solid var(--color-secondary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  max-width: 800px;
  margin: 0 auto;
}

.about__text {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-primary);
  text-align: center;
}

/* Services Section */
.services {
  background-color: var(--color-bg-alt);
}

.services__grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
  background-color: var(--color-white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.service-card__icon {
  font-size: 2.5rem;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.card__text {
  color: var(--color-text-light);
}

/* FAQ Section */
.faq {
  background-color: var(--color-bg);
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion__item {
  border-bottom: 1px solid var(--color-border);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__icon {
  transition: transform 0.3s ease;
  color: var(--color-secondary);
}

.accordion__content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease-out;
}

.accordion__trigger[aria-expanded="true"] + .accordion__content {
  grid-template-rows: 1fr;
}

.accordion__inner {
  overflow: hidden;
  color: var(--color-text-light);
}

.accordion__inner p {
  padding-bottom: 1.5rem;
}

/* Features Section */
.features {
  background-color: var(--color-white);
  padding-top: 0;
}

.features__grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-item {
  text-align: center;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--color-secondary);
  background-color: var(--color-bg-alt);
}

.feature__icon {
  font-size: 2rem;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

/* CTA Section */
.cta-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.cta-section__container {
  max-width: 800px;
}

.cta-section__title {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.cta-section__text {
  margin-bottom: 2rem;
  font-size: 1.125rem;
  opacity: 0.9;
}

/* Contact Section */
.contact {
  background-color: var(--color-bg-alt);
}

.contact__wrapper {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--color-white);
  padding: 3rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.contact__item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
}

.contact__item:last-child {
  margin-bottom: 0;
}

.contact__item i {
  color: var(--color-secondary);
  font-size: 1.25rem;
  margin-top: 0.25rem;
}

.contact__item p {
  color: var(--color-text);
}

/* Footer */
.footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 2rem 0;
  font-size: 0.875rem;
}

.footer__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

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

.social-links a {
  color: #94a3b8;
  font-size: 1.25rem;
}

.social-links a:hover {
  color: var(--color-white);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 992px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
    z-index: 1001;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    padding-top: var(--header-height);
  }

  .nav.active {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }

  .nav__link {
    font-size: 1.5rem;
  }

  .hero__title {
    font-size: 2rem;
  }

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

  .footer__container {
    text-align: center;
  }
}