:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --accent: #f59e0b;
  --dark: #1e293b;
  --light: #f8fafc;
  --white: #ffffff;
  --text: #334155;
  --text-light: #64748b;
  --border: #e2e8f0;
  --success: #22c55e;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: #ffffff;
}

a {
  text-decoration: none;
}

.nav-logo {
  text-decoration: none;
  color: var(--dark);
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ===== Header Styles ===== */
.header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  text-decoration: none;
}

.logo-icon {
  color: var(--primary);
}
.logo svg {
  width: 36px;
  height: 36px;
  color: var(--primary);
}

.nav-list {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: transform 0.2s ease;
  margin-left: 1rem;
}

.nav-cta:hover {
  transform: translateY(-2px);
  background: var(--primary-dark);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  padding: 1rem;
  cursor: pointer;
  background: transparent;
  border: 0;
  z-index: 1001;
}

.hamburger-box {
  width: 30px;
  height: 24px;
  display: inline-block;
  position: relative;
}

.hamburger-inner {
  width: 100%;
  height: 2px;
  background: var(--dark);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.hamburger-inner::before,
.hamburger-inner::after {
  content: "";
  width: 100%;
  height: 2px;
  background: inherit;
  position: absolute;
  left: 0;
  transition: transform 0.3s ease;
}

.hamburger-inner::before {
  top: -8px;
}

.hamburger-inner::after {
  top: 8px;
}

/* ===== Hero Section ===== */
.hero {
  padding: 160px 0 80px;
  background: linear-gradient(to bottom right, var(--light) 50%, #ffffff 50%);
}

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

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  color: var(--dark);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.cta-button {
  padding: 1rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid transparent;
}

.cta-button:not(.secondary) {
  background: var(--primary);
  color: white;
}

.cta-button:not(.secondary):hover {
  background: var(--primary-dark);
}

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

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

/* ===== Calculator Categories ===== */
.calculator-categories {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  color: var(--dark);
  margin-bottom: 1rem;
}

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

.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

.card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: gap 0.3s;
}

.card-link:hover {
  gap: 1rem;
}

/* ===== Stats Section ===== */
.stats {
  background: var(--dark);
  color: white;
  padding: 6rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
  text-align: center;
}

.stat h3 {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.stat p {
  color: var(--white);
  font-size: 1.1rem;
}

/* ===== Newsletter ===== */
.newsletter {
  padding: 6rem 0;
  background: var(--primary);
  color: white;
}

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

.newsletter h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.newsletter-form {
  margin-top: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form input {
  width: 100%;
  padding: 1.25rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.newsletter-form button {
  width: 100%;
  padding: 1.25rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.newsletter-form button:hover {
  background: #e67e22;
}

.disclaimer {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: #cbd5e0;
}

.footer-top {
  padding: 4rem 0;
  border-bottom: 1px solid #4a5568;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-brand .logo {
  color: white;
}

.footer-text {
  color: var(--white);
  line-height: 1.6;
}

.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
}

.social-links a {
  color: #cbd5e0;
  font-size: 1.5rem;
  transition: color 0.3s;
}

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

.footer-col h4 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  color: var(--light);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  padding: 2rem 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  color: var(--light);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: #cbd5e0;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--primary);
}

/* Calculator Directory Styles */
.calculator-directory {
  padding: 4rem 0;
  background: #f8fafc;
}

.directory-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #1e293b;
}

.directory-title span {
  color: #2563eb;
}

.search-container {
  max-width: 800px;
  margin: 0 auto 2rem;
}

.search-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 1rem 2rem;
  border: 2px solid #cbd5e1;
  border-radius: 50px;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 4rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: white;
    padding: 2rem;
    transition: left 0.3s ease;
  }

  .nav.active {
    left: 0;
  }

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

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .cards-container {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom .container {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: transform 0.2s ease;
    margin-left: 0rem;
  }

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

  .cta-button {
    justify-content: center;
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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