/*
Theme Name: Physio Resource
Theme URI: https://physioresource.org/
Author: Physio Resource Clinical Tech
Author URI: https://physioresource.org/
Description: Custom, high-performance, accessible healthcare WordPress theme for Physio Resource (Lahore, Pakistan). Features dedicated templates for 17 Departments, 100+ Conditions Treated, Clinician Profiles, Local SEO, and E-E-A-T Medical Content Integrity.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: physio-resource
Tags: medical, healthcare, physiotherapy, accessibility-ready, custom-colors, responsive-layout, translation-ready
*/

/* ==========================================================================
   1. DESIGN SYSTEM & CSS VARIABLES
   ========================================================================== */
:root {
  /* Brand Palette grounded in Physio Resource Identity */
  --pr-primary: #0E4D68;
  --pr-primary-dark: #093447;
  --pr-primary-light: #16688B;
  --pr-primary-tint: #F0F6F9;

  --pr-secondary: #2CB1BC;
  --pr-secondary-dark: #218E97;
  --pr-secondary-light: #E7F7F8;
  --pr-secondary-rgb: 44, 177, 188;

  --pr-accent-warm: #E07A5F;
  --pr-accent-success: #10B981;
  --pr-accent-warning: #F59E0B;
  --pr-accent-alert: #EF4444;

  /* Neutrals */
  --pr-text: #1A2B35;
  --pr-text-muted: #4B6372;
  --pr-text-light: #7A92A1;
  --pr-bg: #FFFFFF;
  --pr-bg-subtle: #F6FAFC;
  --pr-bg-card: #FFFFFF;
  --pr-border: #E1EBEF;
  --pr-border-focus: #0E4D68;

  /* Typography */
  --pr-font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --pr-font-size-base: 1rem;
  --pr-line-height-base: 1.65;

  /* Spacing Scale */
  --pr-space-1: 0.25rem;
  --pr-space-2: 0.5rem;
  --pr-space-3: 0.75rem;
  --pr-space-4: 1rem;
  --pr-space-5: 1.25rem;
  --pr-space-6: 1.5rem;
  --pr-space-8: 2rem;
  --pr-space-10: 2.5rem;
  --pr-space-12: 3rem;
  --pr-space-16: 4rem;
  --pr-space-20: 5rem;

  /* Layout */
  --pr-container-max: 1280px;
  --pr-container-narrow: 900px;
  --pr-radius-sm: 6px;
  --pr-radius-md: 10px;
  --pr-radius-lg: 16px;
  --pr-radius-full: 9999px;

  /* Elevation Shadows */
  --pr-shadow-sm: 0 1px 3px rgba(14, 77, 104, 0.08);
  --pr-shadow-md: 0 4px 12px rgba(14, 77, 104, 0.08);
  --pr-shadow-lg: 0 10px 25px rgba(14, 77, 104, 0.10);
  --pr-shadow-hover: 0 14px 30px rgba(14, 77, 104, 0.14);

  /* Transitions */
  --pr-transition-fast: 150ms ease;
  --pr-transition-normal: 250ms ease;
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--pr-font-family);
  font-size: 16px;
  line-height: var(--pr-line-height-base);
  color: var(--pr-text);
  background-color: var(--pr-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  overflow-x: hidden;
  background-color: var(--pr-bg);
  color: var(--pr-text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Skip link for screen readers */
.skip-link {
  position: absolute;
  top: -999px;
  left: 20px;
  background: var(--pr-primary);
  color: #fff;
  padding: 12px 20px;
  z-index: 100000;
  font-weight: 700;
  border-radius: var(--pr-radius-sm);
  text-decoration: none;
  transition: top var(--pr-transition-fast);
}
.skip-link:focus {
  top: 20px;
}

/* Accessible visible focus outlines */
:focus-visible {
  outline: 3px solid var(--pr-border-focus);
  outline-offset: 3px;
}

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

a {
  color: var(--pr-primary);
  text-decoration: none;
  transition: color var(--pr-transition-fast);
}
a:hover {
  color: var(--pr-secondary-dark);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--pr-primary-dark);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: var(--pr-space-4);
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.6rem, 2.5vw + 0.8rem, 2.35rem); }
h3 { font-size: clamp(1.25rem, 1.5vw + 0.6rem, 1.65rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.08em; }

p {
  margin-bottom: var(--pr-space-4);
  color: var(--pr-text-muted);
}
p:last-child {
  margin-bottom: 0;
}

/* Utility Containers */
.pr-container {
  width: 100%;
  max-width: var(--pr-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--pr-space-5);
  padding-right: var(--pr-space-5);
}

.pr-container-narrow {
  width: 100%;
  max-width: var(--pr-container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--pr-space-5);
  padding-right: var(--pr-space-5);
}

.pr-section {
  padding-top: clamp(2.5rem, 5vw, 5rem);
  padding-bottom: clamp(2.5rem, 5vw, 5rem);
}

.pr-section-subtle {
  background-color: var(--pr-bg-subtle);
}

/* Buttons */
.pr-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--pr-radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  min-height: 48px; /* Touch target minimum */
  transition: all var(--pr-transition-normal);
  line-height: 1;
}

.pr-btn-primary {
  background-color: var(--pr-primary);
  color: #FFFFFF !important;
  border-color: var(--pr-primary);
}
.pr-btn-primary:hover {
  background-color: var(--pr-primary-dark);
  border-color: var(--pr-primary-dark);
  box-shadow: var(--pr-shadow-md);
  transform: translateY(-2px);
}

.pr-btn-secondary {
  background-color: var(--pr-secondary);
  color: #FFFFFF !important;
  border-color: var(--pr-secondary);
}
.pr-btn-secondary:hover {
  background-color: var(--pr-secondary-dark);
  border-color: var(--pr-secondary-dark);
  transform: translateY(-2px);
}

.pr-btn-outline {
  background-color: transparent;
  color: var(--pr-primary) !important;
  border-color: var(--pr-primary);
}
.pr-btn-outline:hover {
  background-color: var(--pr-primary-tint);
  border-color: var(--pr-primary-dark);
}

.pr-btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF !important;
  border-color: #25D366;
}
.pr-btn-whatsapp:hover {
  background-color: #1EBE5D;
}

.pr-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--pr-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--pr-secondary-light);
  color: var(--pr-primary-dark);
}

/* Card components */
.pr-card {
  background: var(--pr-bg-card);
  border: 1px solid var(--pr-border);
  border-radius: var(--pr-radius-md);
  padding: var(--pr-space-6);
  box-shadow: var(--pr-shadow-sm);
  transition: all var(--pr-transition-normal);
  display: flex;
  flex-direction: column;
}
.pr-card:hover {
  box-shadow: var(--pr-shadow-hover);
  transform: translateY(-4px);
  border-color: var(--pr-secondary);
}

/* Medical Disclaimer Banner */
.pr-medical-disclaimer {
  background-color: #FFFBEB;
  border-left: 4px solid var(--pr-accent-warning);
  padding: var(--pr-space-4) var(--pr-space-5);
  border-radius: var(--pr-radius-sm);
  font-size: 0.88rem;
  color: #92400E;
  margin-top: var(--pr-space-6);
  margin-bottom: var(--pr-space-6);
  line-height: 1.5;
}

/* E-E-A-T Medical Review Tag */
.pr-eeat-box {
  background-color: var(--pr-bg-subtle);
  border: 1px solid var(--pr-border);
  border-radius: var(--pr-radius-md);
  padding: var(--pr-space-4) var(--pr-space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--pr-space-4);
  align-items: center;
  margin-bottom: var(--pr-space-8);
  font-size: 0.88rem;
}
.pr-eeat-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.pr-eeat-item strong {
  color: var(--pr-primary);
}

/* Accessible Accordions (<details>) */
.pr-accordion {
  border: 1px solid var(--pr-border);
  border-radius: var(--pr-radius-md);
  margin-bottom: var(--pr-space-3);
  background: #FFFFFF;
  overflow: hidden;
  transition: border-color var(--pr-transition-fast);
}
.pr-accordion[open] {
  border-color: var(--pr-secondary);
  box-shadow: var(--pr-shadow-sm);
}
.pr-accordion summary {
  padding: var(--pr-space-5);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--pr-primary-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.pr-accordion summary::-webkit-details-marker {
  display: none;
}
.pr-accordion summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--pr-secondary-dark);
  transition: transform var(--pr-transition-fast);
  line-height: 1;
}
.pr-accordion[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}
.pr-accordion-content {
  padding: 0 var(--pr-space-5) var(--pr-space-5) var(--pr-space-5);
  color: var(--pr-text-muted);
  line-height: 1.6;
}

/* Breadcrumbs */
.pr-breadcrumbs {
  font-size: 0.85rem;
  color: var(--pr-text-light);
  margin-bottom: var(--pr-space-4);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.pr-breadcrumbs a {
  color: var(--pr-text-muted);
}
.pr-breadcrumbs a:hover {
  color: var(--pr-primary);
}
.pr-breadcrumbs .separator {
  color: var(--pr-text-light);
}

/* Mobile Sticky Action Bar */
.pr-mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: #FFFFFF;
  border-top: 1px solid var(--pr-border);
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.08);
  padding: 10px 16px;
}
@media (max-width: 768px) {
  .pr-mobile-sticky-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
  }
  body {
    padding-bottom: 70px; /* Space for sticky bar */
  }
}
.pr-mobile-sticky-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 10px 4px;
  border-radius: var(--pr-radius-md);
  text-align: center;
  min-height: 48px;
  text-decoration: none;
}