/* ==========================================================
   Body Metric Hub - Design System & Custom Stylesheet
   Theme: Emerald/Teal Health-Tech with Dark Slate Accents
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --primary: #0d9488;
  --primary-hover: #0f766e;
  --primary-light: #f0fdfa;
  --primary-focus: rgba(13, 148, 136, 0.25);
  
  --emerald: #10b981;
  --navy: #0f172a;
  --slate-bg: #f8fafc;
  --border-color: #e2e8f0;
}

body {
  font-family: var(--font-sans);
  color: #1e293b;
  background-color: var(--slate-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphism effects */
.glass-nav {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.glass-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.04), 0 8px 10px -6px rgba(15, 23, 42, 0.02);
}

.glass-card-hover {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card-hover:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 30px -10px rgba(13, 148, 136, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.04);
  border-color: rgba(13, 148, 136, 0.3);
}

/* Form Controls & Segmented Controls */
.calc-input-group {
  position: relative;
  transition: all 0.2s ease;
}

.calc-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #0f172a;
  background-color: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
}

.calc-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

.calc-select {
  width: 100%;
  padding: 0.75rem 2.25rem 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #0f172a;
  background-color: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 0.75rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.25em 1.25em;
  transition: all 0.2s ease;
}

.calc-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

/* Segmented Unit Toggle Switch */
.unit-toggle-container {
  display: inline-flex;
  background-color: #f1f5f9;
  padding: 0.25rem;
  border-radius: 0.75rem;
  border: 1px solid #e2e8f0;
}

.unit-toggle-btn {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #64748b;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  background: transparent;
}

.unit-toggle-btn.active {
  background-color: #ffffff;
  color: #0f172a;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Result Gauge & Card Animation */
.result-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0fdfa 100%);
  border: 1.5px solid #ccfbf1;
  border-radius: 1.25rem;
  box-shadow: 0 10px 25px -5px rgba(13, 148, 136, 0.08);
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(180deg, #0d9488 0%, #10b981 100%);
}

.pulse-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* AdSense Slot Safe Styling */
.bmh-ad-container {
  clear: both;
  margin-top: 2rem;
  margin-bottom: 2rem;
}

/* Print Friendly Styles */
@media print {
  header, footer, .bmh-ad-container, #cookieConsentBanner, .no-print {
    display: none !important;
  }
  body {
    background: white !important;
    color: black !important;
  }
  .result-card {
    border: 1px solid #000 !important;
    box-shadow: none !important;
  }
}