@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Montserrat:wght@600;700;800&display=swap');

:root {
  /* Healthy lifestyle & Diabetes prevention themed custom properties */
  --sugar-bg: #f8fafc;
  --sugar-surface: #ffffff;
  --sugar-tone: #0284c7; /* Vibrant corporate blue */
  --sugar-tone-dark: #0369a1;
  --sugar-ink: #0f172a;
  --sugar-ink-soft: #475569;
  --sugar-edge: #e2e8f0;
  --sugar-shadow: rgba(15, 23, 42, 0.08);
  --sugar-grad: linear-gradient(135deg, #0284c7 0%, #0ea5e9 100%);
  
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
}

body {
  font-family: var(--font-body);
  background-color: var(--sugar-bg);
  color: var(--sugar-ink);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--sugar-ink);
}

/* Custom Layout Classes (Replacing forbidden ones) */
.vitality-wrap {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.wellness-top-bar {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 50;
  box-shadow: 0 4px 6px -1px var(--sugar-shadow);
}

.life-action-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  font-family: var(--font-display);
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.life-action-trigger:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px var(--sugar-shadow);
}

/* Preset F Specific Elements */
.corporate-grad-text {
  background: var(--sugar-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.icon-row-item {
  border-bottom: 1px solid var(--sugar-edge);
}
.icon-row-item:last-child {
  border-bottom: none;
}

.habit-step-card {
  background: var(--sugar-surface);
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px var(--sugar-shadow);
  position: relative;
  transition: transform 0.3s ease;
}
.habit-step-card:hover {
  transform: translateY(-5px);
}

/* Mobile Menu CSS-Only Logic */
.menu-toggle-check {
  display: none;
}

.mobile-nav-panel {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--sugar-surface);
  box-shadow: 0 4px 6px -1px var(--sugar-shadow);
}

.menu-toggle-check:checked ~ .mobile-nav-panel {
  display: flex;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--sugar-surface);
  margin-bottom: 5px;
  transition: all 0.3s ease;
}
.hamburger-line:last-child {
  margin-bottom: 0;
}

/* Active Nav Underline */
.nav-link-item {
  position: relative;
  text-decoration: none;
}
.nav-link-item::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: currentColor;
  transition: width 0.3s ease;
}
.nav-link-item:hover::after,
.nav-link-item.active-link::after {
  width: 100%;
}

/* Form inputs */
.glucose-input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--sugar-edge);
  border-radius: 0.5rem;
  background: var(--sugar-surface);
  color: var(--sugar-ink);
  font-family: var(--font-body);
}
.glucose-input:focus {
  outline: 2px solid var(--sugar-tone);
  border-color: transparent;
}

/* FAQ Accordion (CSS Only) */
.faq-knowledge-wrap {
  background: var(--sugar-surface);
  border: 1px solid var(--sugar-edge);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}
.faq-knowledge-title {
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-family: var(--font-display);
}
.faq-knowledge-body {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--sugar-ink-soft);
}

@media (min-width: 768px) {
  .desktop-nav-flex {
    display: flex;
    gap: 2rem;
  }
  .mobile-menu-btn {
    display: none;
  }
}
@media (max-width: 767px) {
  .desktop-nav-flex {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    cursor: pointer;
  }
  .nav-link-item {
    padding: 1rem 1.5rem;
    color: var(--sugar-ink);
  }
  .nav-link-item.active-link {
    color: var(--sugar-tone);
  }
}