/* ==========================================================================
   MediCare Hospital - Main Design System & Base CSS
   Palette: Deep Medical Navy (#0A2540), Clean Medical Blue (#0E4B94),
            Clinical Teal/Cyan (#00A8A8), Emergency Red (#D9383A),
            Soft Surface Slate (#F6F9FD), Pure White (#FFFFFF)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Brand Colors */
  --color-primary-dark: #0A1D37;      /* Deep dark medical navy */
  --color-primary: #0A2540;           /* Trustworthy medical navy */
  --color-primary-blue: #0E4B94;      /* Strong medical clinical blue */
  --color-primary-light: #EBF3FC;     /* Subtle blue tint */
  --color-accent-teal: #00A8A8;       /* Clean clinical cyan/teal */
  --color-accent-teal-light: #E0F7F6; /* Soft cyan surface */
  --color-accent-teal-dark: #007D7D;
  
  /* Emergency Colors */
  --color-emergency: #D9383A;         /* High-contrast immediate red */
  --color-emergency-hover: #BF2628;
  --color-emergency-light: #FEECEC;
  
  /* Neutral Palette */
  --color-text-main: #1E293B;         /* Dark slate for readable text */
  --color-text-muted: #64748B;        /* Cool grey secondary text */
  --color-text-light: #94A3B8;
  --color-bg-body: #FFFFFF;
  --color-bg-subtle: #F6F9FD;         /* Hospital clean soft slate/blue */
  --color-bg-card: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-light: #EDF2F7;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout & Spacing */
  --container-max-width: 1240px;
  --container-padding: 1.5rem;
  --header-height: 76px;
  --emergency-bar-height: 40px;

  /* Elevation / Shadows */
  --shadow-xs: 0 1px 2px rgba(10, 37, 64, 0.05);
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 6px 20px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 12px 36px rgba(10, 37, 64, 0.12);
  --shadow-xl: 0 20px 48px rgba(10, 37, 64, 0.16);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Accessible outline */
:focus-visible {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 3px;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.75rem, 3vw + 0.5rem, 2.35rem); }
h3 { font-size: clamp(1.25rem, 2vw + 0.25rem, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  color: var(--color-text-muted);
  font-size: 1rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding: 5rem 0;
  position: relative;
}

.section--subtle {
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section--dark {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
}

.section--dark h2,
.section--dark h3 {
  color: #FFFFFF;
}

.section--dark p {
  color: #CBD5E1;
}

/* Section Header Typography */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-header--left {
  text-align: left;
  margin-left: 0;
  margin-right: auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-teal-dark);
  background-color: var(--color-accent-teal-light);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.section-badge--emergency {
  color: var(--color-emergency);
  background-color: var(--color-emergency-light);
}

.section-badge--dark {
  color: #5EEAD4;
  background-color: rgba(94, 234, 212, 0.12);
  border: 1px solid rgba(94, 234, 212, 0.25);
}

.section-title {
  margin-bottom: 0.9rem;
}

.section-subtitle {
  font-size: 1.1rem;
  line-height: 1.6;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(14, 75, 148, 0.25);
}

.btn-primary:hover {
  background-color: #0B3D79;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(14, 75, 148, 0.32);
}

.btn-emergency {
  background-color: var(--color-emergency);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(217, 56, 58, 0.3);
}

.btn-emergency:hover {
  background-color: var(--color-emergency-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 56, 58, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn-outline-white:hover {
  border-color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
}

/* Pulse Animation for Live Emergency Status */
@keyframes emergencyPulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(217, 56, 58, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(217, 56, 58, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(217, 56, 58, 0); }
}

.pulse-dot {
  width: 9px;
  height: 9px;
  background-color: var(--color-emergency);
  border-radius: 50%;
  display: inline-block;
  animation: emergencyPulse 2s infinite;
}

.pulse-dot--white {
  background-color: #FFFFFF;
  animation: emergencyPulseWhite 2s infinite;
}

@keyframes emergencyPulseWhite {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.8); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(255, 255, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

/* Accessibility: Respect Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}