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

:root {
  --cyan: #00d9ff;
  --blue: #1e40af;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --green: #22c55e;
  --white: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: var(--white);
  color: var(--slate-700);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.max-w-4xl {
  max-width: 56rem;
}

/* HEADER */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--slate-200);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: all 0.3s ease;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--slate-900);
  font-size: 1.5rem;
  font-weight: bold;
  transition: transform 0.2s ease;
}

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

.logo-icon {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--cyan);
}

.nav-desktop {
  display: none;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  text-decoration: none;
  color: var(--slate-700);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  font-weight: 500;
}

.nav-link:hover {
  transform: scale(1.05);
  background: var(--slate-100);
}

.nav-link.active {
  background: var(--slate-100);
  color: var(--slate-900);
}

.header-actions {
  display: none;
  gap: 1rem;
}

@media (min-width: 768px) {
  .header-actions {
    display: flex;
  }
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

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

.menu-toggle span {
  width: 1.5rem;
  height: 0.2rem;
  background: var(--slate-700);
  border-radius: 0.1rem;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--slate-200);
  background: var(--white);
}

.nav-mobile.active {
  display: flex;
}

.nav-link.mobile {
  display: block;
  width: 100%;
  text-align: left;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.btn-primary {
  background: var(--cyan);
  color: var(--slate-900);
}

.btn-primary:hover {
  background: #00b8cc;
  transform: scale(1.05);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--slate-700);
  color: var(--slate-700);
}

.btn-secondary:hover {
  background: var(--slate-100);
  transform: scale(1.05);
}

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

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  transform: scale(1.05);
}

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

.btn-white:hover {
  background: var(--slate-100);
  transform: scale(1.05);
}

.w-full {
  width: 100%;
}

/* SECTIONS */
.hero {
  position: relative;
  height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a 0%, #2c5282 50%, #1e40af 100%);
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L58.66 15v30L30 60L1.34 45v-30z' fill='%23fff' fill-opacity='0.1'/%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
}

.hero-title .text-cyan {
  display: block;
  margin-top: 0.5rem;
  color: var(--cyan);
}

.hero-subtitle {
  font-size: 1.125rem;
  max-width: 42rem;
  margin: 0 auto 2rem;
  color: rgba(255,255,255,0.9);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

.page {
  display: none;
}

.page.active {
  display: block;
}

/* FEATURES SECTION */
.features-section {
  padding: 4rem 0;
}

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

.section-title {
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--slate-900);
  margin-bottom: 1rem;
}

.section-title.white {
  color: var(--white);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--slate-600);
  max-width: 42rem;
  margin: 0 auto;
}

.section-subtitle.white {
  color: rgba(255,255,255,0.9);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--slate-300);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--slate-600);
  margin-bottom: 1rem;
}

.benefits {
  list-style: none;
  padding: 0;
}

.benefits li {
  font-size: 0.875rem;
  color: var(--slate-600);
  padding: 0.25rem 0;
}

/* CTA SECTION */
.cta-section {
  background: linear-gradient(90deg, var(--cyan) 0%, var(--blue) 100%);
  padding: 4rem 0;
  color: var(--white);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
}

@media (min-width: 640px) {
  .cta-actions {
    flex-direction: row;
  }
}

/* PAGE HEADER */
.page-header {
  padding: 4rem 2rem;
}

.light-bg {
  background: #f0f9ff;
}

.white-bg {
  background: var(--white);
}

.page-title {
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--slate-900);
  margin-bottom: 1rem;
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--slate-600);
  max-width: 42rem;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.badge.cyan {
  background: var(--cyan);
  color: var(--slate-900);
}

.mt-8 {
  margin-top: 2rem;
}

.mt-12 {
  margin-top: 3rem;
}

.mb-12 {
  margin-bottom: 3rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

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

/* CONTENT SECTION */
.content-section {
  padding: 4rem 0;
}

/* PREMIUM GRID */
.premium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.premium-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
}

.premium-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.premium-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.premium-card h3 {
  font-size: 1.5rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.premium-card p {
  color: var(--slate-600);
  margin-bottom: 1rem;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.plan-features li {
  font-size: 0.875rem;
  color: var(--slate-600);
}

/* COMPARISON TABLE */
.comparison-table {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--slate-200);
}

th {
  background: var(--slate-100);
  color: var(--slate-900);
  font-weight: 600;
}

tr:hover {
  background: var(--slate-50);
}

/* VALUES GRID */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.value-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.value-card h3 {
  font-size: 1.25rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.value-card p {
  color: var(--slate-600);
  font-size: 0.9rem;
}

/* STORY CONTENT */
.story-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.story-content p {
  font-size: 1.125rem;
  color: var(--slate-600);
  line-height: 1.8;
}

/* CONTACT WRAPPER */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
}

.contact-form,
.contact-info {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 2rem;
}

.contact-form h2,
.contact-info h2 {
  font-size: 1.5rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.contact-form > p,
.contact-info > p {
  color: var(--slate-600);
  margin-bottom: 1.5rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 1rem;
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--cyan);
}

.contact-item .label {
  font-size: 0.875rem;
  color: var(--slate-600);
  margin-bottom: 0.25rem;
}

.contact-item .value {
  font-weight: 600;
  color: var(--slate-900);
}

.office-hours {
  background: #f0f9ff;
  border: 1px solid #bfdbfe;
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.office-hours h3 {
  font-size: 1.125rem;
  color: var(--slate-900);
  margin-bottom: 1rem;
}

.hours-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hour-item {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem;
}

.hour-item span:first-child {
  font-weight: 600;
  color: var(--slate-900);
}

.hour-item span:last-child {
  color: var(--slate-600);
}

/* FORMS */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--slate-900);
}

.form-group input,
.form-group textarea {
  padding: 0.625rem;
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 2px solid var(--slate-200);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.radio-label:hover {
  background: var(--slate-50);
  border-color: var(--slate-300);
}

.radio-label input[type="radio"] {
  cursor: pointer;
}

.radio-label input[type="radio"]:checked + span {
  color: var(--cyan);
  font-weight: 600;
}

.terms {
  font-size: 0.875rem;
  color: var(--slate-600);
  text-align: center;
  margin-top: 1rem;
}

/* SIGNUP SECTION */
.signup-plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.plan-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 2rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.plan-card.featured {
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.1);
}

.plan-card h3 {
  font-size: 1.5rem;
  color: var(--slate-900);
  margin-bottom: 1rem;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 1rem 0;
}

.amount {
  font-size: 2.25rem;
  font-weight: bold;
  color: var(--slate-900);
}

.period {
  color: var(--slate-600);
}

.plan-card > p {
  color: var(--slate-600);
  margin-bottom: 1.5rem;
}

.plan-features {
  margin-bottom: 1.5rem;
}

.signup-form-container {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 2rem;
  max-width: 42rem;
  margin: 0 auto;
}

.signup-form-container h2 {
  font-size: 1.5rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.signup-form-container p {
  color: var(--slate-600);
  margin-bottom: 1.5rem;
}

/* FOOTER */
.footer {
  background: #0f172a;
  color: var(--white);
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--slate-800);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h3 {
  color: var(--cyan);
  font-size: 1.125rem;
  margin-bottom: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col p {
  color: var(--slate-300);
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--slate-300);
  text-decoration: none;
  transition: color 0.2s ease;
  font-size: 0.875rem;
}

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

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--slate-800);
  border-bottom: 1px solid var(--slate-800);
  margin-bottom: 1rem;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  text-decoration: none;
  color: var(--white);
  font-weight: 600;
  transition: all 0.2s ease;
}

.social-icon.facebook {
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

.social-icon.instagram {
  background: linear-gradient(135deg, #833ab4 0%, #fd1d1d 100%);
}

.social-icon.linkedin {
  background: linear-gradient(135deg, #0077b5 0%, #0a66c2 100%);
}

.social-icon.github {
  background: linear-gradient(135deg, #333 0%, #555 100%);
}

.social-icon.email {
  background: linear-gradient(135deg, #ea4335 0%, #fbbc04 100%);
}

.social-icon:hover {
  transform: scale(1.1);
}

.footer-bottom {
  text-align: center;
  font-size: 0.875rem;
  color: var(--slate-400);
}

/* UTILITIES */
.text-cyan {
  color: var(--cyan);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .section-title {
    font-size: 1.875rem;
  }

  .hero-title {
    font-size: 1.875rem;
  }

  .page-title {
    font-size: 1.875rem;
  }

  .hero {
    height: 50vh;
  }

  .features-grid,
  .premium-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }
}