/**
 * Kavya Hospitals - Premium Design System
 * Blue & White — Super Stylish, Corporate
 */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Playfair+Display:wght@500;600;700&display=swap');

:root {
  /* Blue & White — Stylish palette */
  --primary: #0f172a;
  --primary-light: #1e40af;
  --primary-bright: #2563eb;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-soft: #93c5fd;
  
  /* Neutrals */
  --white: #ffffff;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  
  /* Effects */
  --glass: rgba(255, 255, 255, 0.92);
  --glass-dark: rgba(15, 23, 42, 0.94);
  --shadow-soft: 0 4px 24px -4px rgba(15, 23, 42, 0.06), 0 8px 48px -8px rgba(15, 23, 42, 0.08);
  --shadow-premium: 0 25px 60px -12px rgba(15, 23, 42, 0.18), 0 12px 36px -8px rgba(30, 64, 175, 0.12);
  --shadow-glow: 0 0 50px rgba(59, 130, 246, 0.12);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--slate-800);
  background: var(--slate-50);
}

h1, h2, h3, h4, .font-display {
  font-family: 'Playfair Display', Georgia, serif;
}

/* Premium nav — underline animation */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Glass card */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-soft);
}

/* Premium card — hover lift */
.premium-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.premium-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-premium);
}

/* Section separator */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--slate-200), transparent);
  margin: 4rem 0;
}

/* Fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Button — blue gradient */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-bright) 100%);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  transition: all 0.3s ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.45);
}

/* Emergency card glow (red kept for urgency) */
.emergency-glow {
  box-shadow: 0 4px 24px -4px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(220, 38, 38, 0.08), 0 0 40px rgba(220, 38, 38, 0.1);
}

/* Star rating */
.star-rating {
  color: #f59e0b;
}
.star-rating .empty {
  color: var(--slate-200);
}

/* Gradient overlay — blue */
.gradient-overlay {
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.75) 100%);
}

/* Mobile-first: prevent overflow, touch targets, readable text */
html {
  overflow-x: hidden;
}
body {
  overflow-x: hidden;
}
@media (max-width: 640px) {
  .premium-card:hover {
    transform: none; /* avoid hover lift on touch devices */
  }
}
/* Minimum touch target for key CTAs */
a[href^="tel:"], a[href*="wa.me"], .btn-primary, button[type="submit"] {
  min-height: 44px;
}
/* Allow long words (numbers, URLs) to break on small screens */
.break-words-mobile {
  word-break: break-word;
  overflow-wrap: break-word;
}
@media (max-width: 768px) {
  h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
  h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
}