/* 
 * Sarah's Bookings - Base Stylesheet
 * A comprehensive booking system for various businesses
 */

/* -----------------------------
 * Table of Contents
 * -----------------------------
 * 1. CSS Reset/Normalize
 * 2. Variables
 * 3. Typography
 * 4. Layout & Grid System
 * 5. Components
 *    5.1 Buttons
 *    5.2 Forms
 *    5.3 Navigation
 *    5.4 Cards
 *    5.5 Modals
 * 6. Utilities
 * 7. Responsive Design
 * -----------------------------
 */

/* -----------------------------
 * 1. CSS Reset/Normalize
 * -----------------------------
 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul, ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@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;
    scroll-behavior: auto !important;
  }
}

/* -----------------------------
 * 2. Variables
 * -----------------------------
 */
:root {
  /* Color Palette - Primary */
  --color-primary: #3498db;
  --color-primary-light: #5dade2;
  --color-primary-dark: #2980b9;
  
  /* Color Palette - Secondary */
  --color-secondary: #2c3e50;
  --color-secondary-light: #34495e;
  --color-secondary-dark: #1a252f;
  
  /* Color Palette - Accent */
  --color-accent: #e74c3c;
  --color-accent-light: #ec7063;
  --color-accent-dark: #c0392b;
  
  /* Color Palette - Neutral */
  --color-white: #ffffff;
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;
  --color-black: #000000;
  
  /* Color Palette - Feedback */
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-error: #e74c3c;
  --color-info: #3498db;
  
  /* Typography */
  --font-family-base: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-family-heading: 'Poppins', var(--font-family-base);
  
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1.125rem;  /* 18px */
  --font-size-lg: 1.25rem;   /* 20px */
  --font-size-xl: 1.5rem;    /* 24px */
  --font-size-2xl: 1.875rem; /* 30px */
  --font-size-3xl: 2.25rem;  /* 36px */
  --font-size-4xl: 3rem;     /* 48px */
  
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  
  /* Border Radius */
  --border-radius-sm: 0.25rem;  /* 4px */
  --border-radius-md: 0.5rem;   /* 8px */
  --border-radius-lg: 1rem;     /* 16px */
  --border-radius-full: 9999px;
  
  /* Box Shadow */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --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-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Z-index */
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-md);
  
  /* Grid */
  --grid-columns: 12;
  --grid-gap: var(--spacing-md);
}

/* -----------------------------
 * 3. Typography
 * -----------------------------
 */
body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  color: var(--color-gray-800);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

h5 {
  font-size: var(--font-size-md);
}

h6 {
  font-size: var(--font-size-base);
}

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

a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

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

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-primary);
}

/* -----------------------------
 * 4. Layout & Grid System
 * -----------------------------
 */
.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-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
}

.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  gap: var(--grid-gap);
}

/* Flexbox utilities */
.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.flex-1 {
  flex: 1;
}

.modal[hidden] {
  display: none !important;
}

/* Grid layout for specific components */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.businesses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

/* -----------------------------
 * 5. Components
 * -----------------------------
 */

/* 5.1 Buttons */
.button {
  display: inline-block;
  font-weight: var(--font-weight-medium);
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.button:hover, .button:focus {
  text-decoration: none;
}

.button-primary {
  color: var(--color-white);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.button-primary:hover, .button-primary:focus {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

.button-secondary {
  color: var(--color-white);
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.button-secondary:hover, .button-secondary:focus {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-white);
}

.button-outline {
  color: var(--color-primary);
  background-color: transparent;
  border-color: var(--color-primary);
}

.button-outline:hover, .button-outline:focus {
  color: var(--color-white);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* 5.2 Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="time"],
input[type="search"],
select,
textarea {
  display: block;
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  background-clip: padding-box;
  border: 1px solid var(--color-gray-400);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
input[type="search"]:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.form-checkbox {
  display: flex;
  align-items: center;
}

.form-checkbox input[type="checkbox"] {
  margin-right: var(--spacing-sm);
}

.form-footer {
  margin-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
}

/* 5.3 Navigation */
.site-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-index-sticky);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo h1 {
  font-size: var(--font-size-xl);
  margin-bottom: 0;
  color: var(--color-primary);
}

.main-navigation {
  flex: 1;
  margin: 0 var(--spacing-xl);
}

.menu {
  display: flex;
  justify-content: center;
}

.menu-item {
  margin: 0 var(--spacing-md);
}

.menu-item a {
  color: var(--color-gray-700);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.menu-item a:hover,
.menu-item a:focus,
.current-menu-item a {
  color: var(--color-primary);
  text-decoration: none;
}

.current-menu-item a {
  font-weight: var(--font-weight-semibold);
}

.user-actions {
  display: flex;
  align-items: center;
}

.user-actions .button {
  margin-left: var(--spacing-sm);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.icon-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-secondary);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* 5.4 Cards */
.category-card {
  display: block;
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.category-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

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

.category-card p {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

.business-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.business-card:hover {
  box-shadow: var(--shadow-md);
}

.business-image {
  height: 200px;
  background-color: var(--color-gray-200);
  position: relative;
}

.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background-color: var(--color-gray-200);
  color: var(--color-gray-500);
  font-weight: var(--font-weight-medium);
}

.image-placeholder.small {
  height: 50px;
  width: 50px;
  border-radius: 50%;
}

.business-info {
  padding: var(--spacing-lg);
}

.business-info h3 {
  margin-bottom: var(--spacing-xs);
}

.business-type {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.business-rating {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.stars {
  color: var(--color-warning);
  margin-right: var(--spacing-xs);
}

.rating-count {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

.business-location {
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-md);
}

/* 5.5 Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-modal);
}

.modal-content {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 500px;
  padding: var(--spacing-xl);
  position: relative;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  cursor: pointer;
  color: var(--color-gray-600);
}

.modal-close:hover {
  color: var(--color-gray-800);
}

/* Hero Section */
.hero-section {
  background-color: var(--color-gray-100);
  padding: var(--spacing-3xl) 0;
}

.hero-section .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-content {
  flex: 1;
  padding-right: var(--spacing-xl);
}

.hero-content h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
}

.hero-image {
  flex: 1;
  height: 400px;
}

/* How It Works Section */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.step {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  border-radius: 50%;
  margin: 0 auto var(--spacing-md);
}

/* For Business Owners Section */
#for-business-owners {
  background-color: var(--color-gray-100);
}

#for-business-owners .container {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.business-owners-content {
  flex: 1;
}

.business-owners-image {
  flex: 1;
  height: 400px;
}

.features-list {
  margin-bottom: var(--spacing-lg);
}

.features-list li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}

.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
}

/* Testimonials Section */
.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
}

.testimonial-content {
  margin-bottom: var(--spacing-md);
}

.testimonial-content p {
  font-style: italic;
  margin-bottom: 0;
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.author-image {
  margin-right: var(--spacing-md);
}

.author-info h4 {
  margin-bottom: 0;
  font-size: var(--font-size-base);
}

.author-info p {
  margin-bottom: 0;
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

/* Call to Action Section */
#cta {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

#cta h2 {
  color: var(--color-white);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

#cta .button-primary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

#cta .button-primary:hover {
  background-color: transparent;
  color: var(--color-white);
}

#cta .button-secondary {
  background-color: transparent;
  border-color: var(--color-white);
}

/* Footer */
.site-footer {
  background-color: var(--color-secondary);
  color: var(--color-gray-300);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.site-footer h3 {
  color: var(--color-white);
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.social-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-gray-700);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* View All Container */
.view-all-container {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* -----------------------------
 * 6. Utilities
 * -----------------------------
 */
.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;
}

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

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

/* -----------------------------
 * 7. Responsive Design
 * -----------------------------
 */

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 576px) {
  :root {
    --container-padding: var(--spacing-sm);
  }
  
  h1 {
    font-size: var(--font-size-2xl);
  }
  
  h2 {
    font-size: var(--font-size-xl);
  }
  
  .hero-content h2 {
    font-size: var(--font-size-2xl);
  }
  
  .hero-section .container {
    flex-direction: column;
  }
  
  .hero-content {
    padding-right: 0;
    margin-bottom: var(--spacing-xl);
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .footer-columns {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-column {
    margin-bottom: var(--spacing-lg);
  }
  
  #for-business-owners .container {
    flex-direction: column;
  }
  
  .business-owners-content {
    margin-bottom: var(--spacing-xl);
  }
}

/* Medium devices (tablets, 768px and up) */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .main-navigation {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md);
    display: none;
  }
  
  .main-navigation.active {
    display: block;
  }
  
  .menu {
    flex-direction: column;
    align-items: center;
  }
  
  .menu-item {
    margin: var(--spacing-xs) 0;
  }
  
  .site-header .container {
    flex-wrap: wrap;
  }
  
  .user-actions {
    margin-left: auto;
  }
  
  .testimonials-slider {
    grid-template-columns: 1fr;
  }
}

/* Large devices (desktops, 992px and up) */
@media (max-width: 992px) {
  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  :root {
    --container-max-width: 1140px;
  }
}

/* Role toggle buttons */
.role-toggle {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.role-toggle input[type="radio"] {
  display: none;
}

.role-toggle label {
  padding: 10px 20px;
  border: 2px solid #ccc;
  border-radius: 6px;
  cursor: pointer;
  background-color: #f9f9f9;
  transition: all 0.2s ease-in-out;
}

.role-toggle input[type="radio"]:checked + label {
  background-color: #007bff;
  color: white;
  border-color: #007bff;
}

select, input[type="text"] {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  margin-bottom: 1rem;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 1rem;
}

/* In your main CSS file or <style> tag in login.html */
/* Basic Modal Styling - Enhance as needed */
.modal {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6); /* Darker overlay */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050; /* Ensure it's above other content */
    opacity: 0; /* Start hidden for transition */
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}

.modal:not([hidden]) {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease;
}

.modal-content {
    background-color: #fff;
    padding: 25px 30px; /* More padding */
    border-radius: 8px; /* Rounded corners */
    text-align: center;
    min-width: 320px;
    max-width: 450px; /* Max width */
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3); /* Softer shadow */
    position: relative;
    transform: translateY(-20px); /* Start slightly up for transition */
    transition: transform 0.3s ease;
}

.modal:not([hidden]) .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.8rem; /* Larger close icon */
    font-weight: bold;
    color: #888;
    cursor: pointer;
    line-height: 1;
    padding: 0;
}
.modal-close:hover {
    color: #555;
}

/* Alert message styling within the modal */
.modal-content .alert {
    padding: 12px 15px;
    margin-top: 15px; /* Space from title or other content if any */
    border-radius: 5px;
    font-size: 0.95rem;
    text-align: left; /* Or center, depending on preference */
    border-width: 1px;
    border-style: solid;
}

.modal-content .alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.modal-content .alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.modal-content .alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-color: #ffeeba;
}

.modal-content .alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

/* Optional: Add icons to alerts */
.modal-content .alert::before {
    /* content: 'ℹ️'; Example, use appropriate icons */
    /* margin-right: 8px; */
    /* font-weight: bold; */
}
.modal-content .alert-error::before { /* content: '❌ '; */ }
.modal-content .alert-success::before { /* content: '✅ '; */ }