/* ===================================
   ACT Metaphors - Main Styles
   Core Application Styles
   =================================== */

/* ===================================
   CSS Variables
   =================================== */

:root {
  /* Colors - Primary Palette */
  --color-primary: #4A90A4;
  --color-primary-light: #6BA8BA;
  --color-primary-dark: #2D5F6F;
  
  /* Colors - Secondary Palette */
  --color-secondary: #7FB069;
  --color-secondary-light: #9BC084;
  --color-secondary-dark: #5A8F4F;
  
  /* Colors - Accent */
  --color-accent: #E8B4B8;
  --color-accent-dark: #D89CA0;
  
  /* Colors - Neutral */
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;
  
  /* Colors - Semantic */
  --color-success: #7FB069;
  --color-warning: #F4A261;
  --color-error: #E76F51;
  --color-info: #4A90A4;
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: 'Georgia', 'Times New Roman', serif;
  
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 0.75rem;   /* 12px */
  --spacing-lg: 1rem;      /* 16px */
  --spacing-xl: 1.5rem;    /* 24px */
  --spacing-2xl: 2rem;     /* 32px */
  --spacing-3xl: 3rem;     /* 48px */
  
  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
}

/* ===================================
   Base Styles
   =================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-neutral-800);
  background: var(--color-neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-neutral-900);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ===================================
   Skip Link (Accessibility)
   =================================== */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  z-index: 1000;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

/* ===================================
   Header
   =================================== */

.app-header {
  background: white;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.logo-section {
  flex-shrink: 0;
}

.app-title {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin: 0;
  line-height: 1;
}

.app-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-600);
  margin: var(--spacing-xs) 0 0 0;
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-normal);
}

/* ===================================
   Navigation
   =================================== */

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--color-neutral-700);
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: currentColor;
  left: 0;
  transition: transform var(--transition-base);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-sm);
  align-items: center;
}

.nav-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-neutral-700);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background: var(--color-neutral-100);
  color: var(--color-primary);
  text-decoration: none;
}

.nav-link.active {
  background: var(--color-primary);
  color: white;
}

/* ===================================
   Header Actions
   =================================== */

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.search-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--color-neutral-600);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.search-toggle:hover {
  background: var(--color-neutral-100);
  color: var(--color-primary);
}

.crisis-button {
  background: var(--color-error);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.crisis-button:hover {
  background: #D65A3E;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===================================
   Search Container
   =================================== */

.search-container {
  background: var(--color-neutral-50);
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: 1px solid var(--color-neutral-200);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.search-input {
  flex: 1;
  padding: var(--spacing-md);
  border: 2px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-close {
  background: none;
  border: none;
  font-size: var(--font-size-3xl);
  color: var(--color-neutral-500);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.search-close:hover {
  background: var(--color-neutral-200);
  color: var(--color-neutral-700);
}

/* ===================================
   Main Content
   =================================== */

.app-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
  min-height: calc(100vh - 200px);
}

/* ===================================
   Page Sections
   =================================== */

.page {
  display: none;
  animation: fadeIn var(--transition-base);
}

.page.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.page-description {
  color: var(--color-neutral-600);
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-sm);
}

/* ===================================
   Hero Section
   =================================== */

.hero-section {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  color: white;
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-2xl);
}

.hero-title {
  color: white;
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  opacity: 0.95;
}

.quick-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: white;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* ===================================
   Core Processes Section
   =================================== */

.core-processes-section {
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  text-align: center;
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xl);
}

.core-processes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.process-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.process-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.process-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.process-card p {
  color: var(--color-neutral-600);
  margin: 0;
}

/* ===================================
   Disclaimer Section
   =================================== */

.disclaimer-section {
  background: var(--color-neutral-100);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-warning);
  margin-top: var(--spacing-2xl);
}

.disclaimer-section h3 {
  color: var(--color-warning);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.disclaimer-section p {
  color: var(--color-neutral-700);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

/* ===================================
   Filter Controls
   =================================== */

.filter-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.filter-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-700);
}

.filter-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  background: white;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ===================================
   Pagination
   =================================== */

.pagination-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.btn-pagination {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-pagination:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-pagination:disabled {
  background: var(--color-neutral-300);
  cursor: not-allowed;
  opacity: 0.6;
}

.page-indicator {
  color: var(--color-neutral-700);
  font-weight: var(--font-weight-medium);
}

/* ===================================
   Empty State
   =================================== */

.empty-state {
  text-align: center;
  padding: var(--spacing-3xl);
}

.empty-state svg {
  color: var(--color-neutral-400);
  margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
  color: var(--color-neutral-700);
  margin-bottom: var(--spacing-md);
}

.empty-state p {
  color: var(--color-neutral-600);
  margin-bottom: var(--spacing-xl);
}

/* ===================================
   Tools Grid
   =================================== */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.tool-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  text-align: center;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-secondary);
}

.tool-card h3 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.tool-card p {
  color: var(--color-neutral-600);
  margin-bottom: var(--spacing-lg);
}

.tool-card .btn {
  width: 100%;
  justify-content: center;
  background: var(--color-secondary);
  color: white;
}

.tool-card .btn:hover {
  background: var(--color-secondary-dark);
}

/* ===================================
   About Page
   =================================== */

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.content-section {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
}

.content-section h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.content-section p {
  color: var(--color-neutral-700);
  line-height: var(--line-height-relaxed);
}

.core-processes-list {
  display: grid;
  gap: var(--spacing-lg);
}

.core-processes-list dt {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.core-processes-list dd {
  color: var(--color-neutral-700);
  line-height: var(--line-height-relaxed);
  margin-left: 0;
  margin-bottom: var(--spacing-md);
}

.usage-list {
  list-style-position: inside;
  color: var(--color-neutral-700);
  line-height: var(--line-height-relaxed);
}

.usage-list li {
  margin-bottom: var(--spacing-sm);
}

/* ===================================
   Modal Base Styles
   =================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal[hidden] {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
}

.modal-content {
  position: relative;
  z-index: var(--z-modal);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn var(--transition-base);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl);
  border-bottom: 2px solid var(--color-neutral-200);
  position: sticky;
  top: 0;
  background: white;
  z-index: 10;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-title {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-3xl);
  color: var(--color-neutral-500);
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  line-height: 1;
  flex-shrink: 0;
}

.modal-close:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-700);
  transform: scale(1.1);
}

.modal-close:active {
  transform: scale(0.95);
}

.modal-body {
  padding: var(--spacing-xl);
}

/* ===================================
   Crisis Modal Specific Styles
   =================================== */

.crisis-modal .modal-content {
  max-width: 600px;
  border-top: 4px solid var(--color-error);
}

.crisis-header {
  background: linear-gradient(135deg, #E89A8F, var(--color-error));
}

.crisis-header .modal-title {
  color: white;
}

.crisis-header .modal-close {
  color: white;
}

.crisis-header .modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.crisis-content {
  text-align: center;
}

.crisis-intro {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-error);
  background: rgba(231, 111, 81, 0.1);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
}

.crisis-resources {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.crisis-resource {
  background: var(--color-neutral-50);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-neutral-200);
}

.crisis-resource h3 {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.crisis-phone {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-error);
  margin: var(--spacing-md) 0;
  font-family: var(--font-family-base);
}

.crisis-resource p:last-child {
  color: var(--color-neutral-600);
  margin: 0;
}

.crisis-content .btn {
  width: 100%;
  justify-content: center;
  background: var(--color-secondary);
  color: white;
}

.crisis-content .btn:hover {
  background: var(--color-secondary-dark);
}

/* ===================================
   Footer
   =================================== */

.app-footer {
  background: var(--color-neutral-800);
  color: var(--color-neutral-300);
  padding: var(--spacing-2xl) var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
}

.footer-disclaimer,
.footer-credits,
.footer-copyright {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
}

.footer-disclaimer {
  font-size: var(--font-size-sm);
  color: var(--color-warning);
}

.footer-credits {
  font-size: var(--font-size-sm);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-500);
  margin: 0;
}

/* ===================================
   Utility Classes
   =================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===================================
   Scrollbar Styling
   =================================== */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-neutral-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-neutral-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neutral-500);
}

/* ===================================
   Focus Styles (Accessibility)
   =================================== */

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}