/*
  CloudMattress.ai custom stylesheet

  This stylesheet defines the colour palette, typography and layout
  rules used throughout the site. It makes heavy use of CSS variables
  and modern layout techniques like Flexbox and CSS Grid to create
  a clean, responsive design that adjusts gracefully across
  different screen sizes.
*/

/* Colour variables */
:root {
  --color-primary: #4d5dfb; /* calming blue for primary actions */
  --color-primary-dark: #3948d3;
  --color-secondary: #0e2547; /* deep midnight for backgrounds */
  --color-accent: #8a5be2; /* purple accent for highlights */
  --color-light: #f7f9fc; /* light background */
  --color-text: #1a1c2c;
  --color-text-light: #4b4f6b;
  --color-white: #ffffff;
  --color-green: #34d399;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Utility classes */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

.section-header p {
  max-width: 650px;
  margin: 0 auto;
  color: var(--color-text-light);
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: 0.75rem 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-img {
  width: 45px;
  height: 45px;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-white);
}

.logo-tagline {
  font-size: 0.65rem;
  color: #c4cfe3;
  letter-spacing: 0.5px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links li a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-white);
  padding: 0.5rem 0;
  position: relative;
}

.nav-links li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links li a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  position: relative;
  background-image: url('assets/hero.png');
  background-size: cover;
  background-position: center;
  min-height: 80vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  text-align: left;
}

/* Dark overlay to improve readability over the hero image */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(14, 37, 71, 0.8) 0%,
    rgba(14, 37, 71, 0.4) 40%,
    rgba(14, 37, 71, 0.8) 100%
  );
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
}

.accent-dot {
  color: var(--color-accent);
}

.hero .subtitle {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: var(--color-light);
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: pointer;
}

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

.primary-btn:hover {
  background-color: var(--color-primary-dark);
}

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

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

/* Steps (How It Works) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.step-card {
  background-color: var(--color-white);
  border-radius: 0.5rem;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}

.step-card:hover {
  transform: translateY(-4px);
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-accent);
}

.step-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

.step-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: var(--color-white);
  border-radius: 0.5rem;
  padding: 1.5rem;
  text-align: center;
  border-top: 4px solid var(--color-accent);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s ease;
}

.feature-card:hover {
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Value Adds */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.value-card {
  background-color: var(--color-white);
  border-left: 4px solid var(--color-primary);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}

.value-card:hover {
  transform: translateY(-4px);
}

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

.plan-card {
  background-color: var(--color-white);
  border-radius: 0.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  border-top: 4px solid var(--color-primary);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.plan-card .plan-name {
  font-size: 1.5rem;
  margin-bottom: 0.3rem;
  color: var(--color-secondary);
  font-weight: 600;
}

.plan-card .plan-price {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-weight: 700;
}

.plan-features {
  list-style: none;
  text-align: left;
  margin: 1rem 0 2rem;
  padding-left: 0;
}

.plan-features li {
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: var(--color-text-light);
  position: relative;
  padding-left: 1rem;
}

.plan-features li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

.plan-card .plan-btn {
  display: inline-block;
  width: 100%;
  padding: 0.8rem;
  border-radius: 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.highlighted-plan {
  border-top-color: var(--color-accent);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.12);
  transform: scale(1.02);
}

/* Founders Section */
.founders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.founder-card {
  background-color: var(--color-white);
  border-left: 4px solid var(--color-primary);
  border-radius: 0.5rem;
  padding: 1.8rem 1.5rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}

.founder-card:hover {
  transform: translateY(-4px);
}

.founder-icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 0.8rem;
}

.founder-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.2rem;
  color: var(--color-secondary);
}

.founder-card h4 {
  font-size: 0.9rem;
  margin-bottom: 0.8rem;
  color: var(--color-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.founder-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.4;
}
.value-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

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

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

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

.contact-info h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact-details {
  list-style: none;
  margin-top: 1rem;
}

.contact-details li {
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
}

.contact-details i {
  margin-right: 0.6rem;
  color: var(--color-accent);
}

.contact-form-wrapper {
  background-color: var(--color-white);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.contact-form label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--color-secondary);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  margin-bottom: 1rem;
  border: 1px solid #d3d7e3;
  border-radius: 0.4rem;
  font-size: 0.9rem;
  font-family: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  width: 100%;
  padding: 0.8rem;
  border: none;
  border-radius: 0.4rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.contact-form button:hover {
  background-color: var(--color-primary-dark);
}

/* Footer */
.footer {
  background-color: #0b1e38;
  color: var(--color-light);
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h3,
.footer h4 {
  margin-bottom: 0.8rem;
  color: var(--color-white);
}

.footer p {
  font-size: 0.9rem;
  color: #c4cfe3;
}

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

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

.footer-links a {
  font-size: 0.9rem;
  color: #c4cfe3;
}

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

.social-icons a {
  display: inline-block;
  margin-right: 0.6rem;
  font-size: 1.2rem;
  color: #c4cfe3;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  color: #a0aec0;
}

/* Responsive typography adjustments */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.4rem;
  }
  .hero .subtitle {
    font-size: 1rem;
  }
  .nav-links {
    gap: 1rem;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero .subtitle {
    font-size: 0.95rem;
  }
}