:root {
  --primary-color: #4B1461;
  --secondary-color: #361047;
  --accent-color: #7C3FA0;
  --light-color: #F5EEF8;
  --dark-color: #1E0A2E;
  --gradient-primary: linear-gradient(135deg, #4B1461 0%, #7C3FA0 100%);
  --hover-color: #3A0F4D;
  --background-color: #FAF5FC;
  --text-color: #261635;
  --border-color: rgba(124, 63, 160, 0.20);
  --divider-color: rgba(75, 20, 97, 0.13);
  --shadow-color: rgba(75, 20, 97, 0.11);
  --highlight-color: #F0DB4F;
  --main-font: 'Merriweather', serif;
  --alt-font: 'Poppins', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; width: 100%; }

body {
  font-family: var(--alt-font);
  color: var(--text-color);
  background: var(--background-color);
  line-height: 1.7;
  margin: 0;
  padding: 0;
  width: 100%;
  min-width: 320px;
}

img { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

h1, h2, h3 {
  font-family: var(--main-font);
  font-weight: 700;
  color: var(--primary-color);
  margin: 0 0 1.2rem 0;
}

h1 { font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 4vw, 2.4rem); line-height: 1.3; }
h3 { font-size: clamp(1.1rem, 3vw, 1.4rem); line-height: 1.4; }

p { margin: 0 0 1rem 0; font-size: clamp(1rem, 2vw, 1.1rem); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 10px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.hamburger .line {
  width: 24px;
  height: 2px;
  background: var(--primary-color);
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

#menu-toggle { display: none; }

#menu-toggle:checked ~ .mobile-nav {
  max-height: 500px;
  opacity: 1;
}

.mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.3s ease;
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.mobile-nav ul {
  padding: 2rem;
  margin: 0;
  list-style: none;
}

.mobile-nav li { margin: 1.2rem 0; }

.mobile-nav a {
  display: block;
  padding: 0.8rem 0;
  color: var(--text-color);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.mobile-nav a:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.97);
  padding: 1.2rem 0;
  position: relative;
  z-index: 1000;
  box-shadow: 0 2px 16px var(--shadow-color);
}

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

.logo img { height: 3rem; width: auto; }

.navigation ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}

.navigation a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  width: 100%;
}

/* Feature card — number badge style */
.feature-card {
  background: rgba(255, 255, 255, 0.97);
  border-radius: 12px;
  padding: 2rem 1.8rem 1.8rem;
  box-shadow: 0 3px 18px var(--shadow-color);
  transition: all 0.3s ease;
  width: 100%;
  position: relative;
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px var(--shadow-color);
  border-color: var(--accent-color);
}

.feature-icon {
  font-size: 2rem;
  margin: 0 auto 1rem auto;
  width: 64px;
  height: 64px;
  background: var(--light-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
  background: var(--gradient-primary);
  border-color: transparent;
}

.feature-num {
  position: absolute;
  top: -14px;
  left: 1.8rem;
  background: var(--gradient-primary);
  color: white;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  font-family: var(--alt-font);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  width: 100%;
}

.testimonial {
  background: rgba(255, 255, 255, 0.93);
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--accent-color);
  border-radius: 8px;
  padding: 2rem 2.2rem;
  box-shadow: 0 3px 16px var(--shadow-color);
  transition: all 0.3s ease;
}

.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 26px var(--shadow-color);
}

/* FAQ */
.faq-item {
  background: rgba(255, 255, 255, 0.93);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin: 1rem 0;
  padding: 1.8rem 2rem;
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: all 0.3s ease;
}

.faq-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--shadow-color);
  border-color: var(--accent-color);
}

/* Form */
input, textarea {
  transition: all 0.3s ease;
  font-family: var(--alt-font);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-color);
  font-size: 1rem;
  width: 100%;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(75, 20, 97, 0.12);
  background: white;
}

.btn, button {
  transition: all 0.3s ease;
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 1rem 2.2rem;
  border-radius: 8px;
  font-weight: 600;
  font-family: var(--alt-font);
  cursor: pointer;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  box-shadow: 0 4px 16px rgba(75, 20, 97, 0.28);
}

.btn:hover, button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(75, 20, 97, 0.38);
}

/* Pattern background — fine dot grid */
.pattern-bg {
  background-image:
    radial-gradient(ellipse at 5% 50%, rgba(124, 63, 160, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 95% 50%, rgba(75, 20, 97, 0.06) 0%, transparent 55%),
    radial-gradient(circle, rgba(124, 63, 160, 0.18) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px;
}

/* Sleep phases block */
.sleep-phase-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: 0 2px 10px var(--shadow-color);
}

.sleep-phase-label {
  background: var(--gradient-primary);
  color: white;
  padding: 1rem 1.2rem;
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  min-width: 130px;
  font-family: var(--alt-font);
}

.sleep-phase-body {
  background: rgba(255,255,255,0.97);
  padding: 1rem 1.4rem;
  flex: 1;
  border: 1px solid var(--border-color);
  border-left: none;
  font-size: 0.96rem;
  color: var(--text-color);
}

.sleep-phase-body strong {
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.95rem;
}

/* Info cards */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.6rem;
  margin-top: 2rem;
}

.info-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 10px;
  padding: 1.8rem 1.6rem;
  box-shadow: 0 2px 14px var(--shadow-color);
  border-bottom: 3px solid var(--accent-color);
  transition: all 0.3s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.info-card-icon {
  font-size: 2rem;
  margin-bottom: 0.8rem;
  color: var(--accent-color);
}

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

footer a { color: var(--light-color); text-decoration: none; transition: opacity 0.2s; }
footer a:hover { opacity: 0.75; }

/* Responsive */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .navigation { display: none; }
  .mobile-nav { display: block; }

  .features-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .info-cards { grid-template-columns: 1fr; }

  .feature-card,
  .testimonial,
  .faq-item { padding: 1.6rem 1.2rem; }

  .sleep-phase-row { flex-direction: column; }
  .sleep-phase-label { min-width: unset; }

  #contact .grid { max-width: 100% !important; }
}

@media (max-width: 480px) {
  .container { padding: 0 0.75rem; }
  .feature-card,
  .testimonial,
  .faq-item { padding: 1.3rem 1rem; }
}

a:focus, button:focus, input:focus, textarea:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}