/* ============================================
   MEETLY CUSTOM CSS FRAMEWORK
   ============================================ */

/* CSS Custom Properties */
:root {
  --primary: #4F6DF5;
  --primary-light: #6B7DFF;
  --primary-dark: #3A52D5;
  --secondary: #6C757D;
  --success: #28A745;
  --warning: #FFC107;
  --danger: #DC3545;
  --info: #17A2B8;
  
  --bg-light: #F8F9FA;
  --bg-white: #FFFFFF;
  --border-light: #E9ECEF;
  --border-dark: #DEE2E6;
  --text-dark: #212529;
  --text-muted: #6C757D;
  
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  --font-size-xxxl: 2rem;
  
  --transition: all 0.3s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-xxxl); }
h2 { font-size: var(--font-size-xxl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

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

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

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }

.lead {
  font-size: var(--font-size-lg);
  font-weight: 300;
}

.small, small {
  font-size: var(--font-size-sm);
}

/* ============================================
   GRID & LAYOUT UTILITIES
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: calc(var(--spacing-md) * -1);
}

.col {
  flex: 1 1 auto;
  padding: var(--spacing-md);
}

.col-12 { width: 100%; }
.col-6 { width: 50%; }
.col-4 { width: 33.333%; }
.col-3 { width: 25%; }
.col-2 { width: 16.667%; }
.col-1 { width: 8.333%; }

@media (max-width: 768px) {
  .col { width: 100%; }
  .col-6, .col-4, .col-3, .col-2, .col-1 { width: 100%; }
}

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ============================================
   SPACING UTILITIES
   ============================================ */

.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-xxl { margin-top: var(--spacing-xxl); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-xxl { margin-bottom: var(--spacing-xxl); }

.m-0 { margin: 0; }
.m-auto { margin: auto; }

.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
  background-color: #5a6268;
}

.btn-danger {
  background-color: var(--danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: #c82333;
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-light);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  background-color: var(--bg-light);
  font-weight: 600;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-light);
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: var(--text-dark);
}

.input,
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: var(--transition);
  background-color: var(--bg-white);
}

.input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 109, 245, 0.1);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

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

.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.checkbox-item input,
.radio-item input {
  width: auto;
  margin: 0;
}

.form-help {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid;
  border-radius: var(--radius-md);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

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

.alert-warning {
  background-color: #fff3cd;
  border-color: #ffeaa7;
  color: #856404;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: #f5c6cb;
  color: #721c24;
}

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

.alert-close {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 1.5rem;
  margin-left: auto;
  padding: 0;
}

/* ============================================
   NAVIGATION BAR
   ============================================ */

.navbar {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

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

.navbar-menu a {
  color: var(--text-dark);
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.navbar-menu a:hover {
  color: var(--primary);
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.navbar-menu a:hover::after {
  width: 100%;
}

/* Language Switcher Styling */
.language-switcher {
  list-style: none;
}

.language-picker {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background-color: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs) var(--spacing-md);
  transition: var(--transition);
  cursor: pointer;
}

.language-picker:hover {
  background-color: var(--bg-white);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 109, 245, 0.1);
}

.language-icon {
  font-size: 1.2rem;
  line-height: 1;
  user-select: none;
}

.language-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: transparent;
  border: none;
  padding: 0;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-dark);
  cursor: pointer;
  outline: none;
  min-width: 80px;
}

.language-select:focus {
  outline: none;
}

.language-arrow {
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: var(--transition);
  user-select: none;
  pointer-events: none;
}

.language-picker:hover .language-arrow {
  color: var(--primary);
}

/* Hamburger Menu Toggle Button */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 101;
  transition: var(--transition);
}

.navbar-toggle-icon {
  width: 25px;
  height: 3px;
  background-color: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar-toggle:hover .navbar-toggle-icon {
  background-color: var(--primary);
}

.navbar-toggle.active .navbar-toggle-icon:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.navbar-toggle.active .navbar-toggle-icon:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active .navbar-toggle-icon:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-menu {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    max-width: 80vw;
    background-color: var(--bg-white);
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 80px var(--spacing-lg) var(--spacing-lg);
    overflow-y: auto;
    transition: right 0.3s ease;
    z-index: 100;
  }
  
  .navbar-menu.active {
    right: 0;
  }
  
  .navbar-menu li {
    width: 100%;
    border-bottom: 1px solid var(--border-light);
  }
  
  .navbar-menu li:last-child {
    border-bottom: none;
  }
  
  .navbar-menu a {
    display: block;
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-base);
  }
  
  .navbar-menu a::after {
    display: none;
  }
  
  .navbar-menu a:hover {
    padding-left: var(--spacing-sm);
  }
  
  /* Mobile language picker adjustments */
  .language-switcher {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-light);
  }
  
  .language-picker {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
  }
  
  .language-select {
    font-size: var(--font-size-base);
    min-width: 100px;
  }
  
  .language-icon {
    font-size: 1.2rem;
  }
  
  /* Prevent body scroll when menu is open */
  body.nav-open {
    overflow: hidden;
  }
  
  /* Overlay behind mobile menu */
  body.nav-open::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99;
    animation: fadeIn 0.3s ease;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: var(--text-dark);
  color: white;
  margin-top: var(--spacing-xxl);
  padding: var(--spacing-xl) 0;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  list-style: none;
}

.footer-links a {
  color: white;
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-copy {
  font-size: var(--font-size-sm);
  color: #adb5bd;
}

/* ============================================
   TABLES
   ============================================ */

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-white);
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table thead {
  background-color: var(--bg-light);
  font-weight: 600;
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.table tbody tr:hover {
  background-color: var(--bg-light);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ============================================
   MODALS
   ============================================ */

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-content {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

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

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* ============================================
   CALENDAR WIDGET
   ============================================ */

.calendar {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

.calendar-nav {
  display: flex;
  gap: var(--spacing-sm);
}

.calendar-nav button {
  background-color: var(--bg-light);
  border: 1px solid var(--border-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.calendar-weekday {
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-sm);
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  background-color: var(--bg-white);
}

.calendar-day:hover:not(.disabled):not(.other-month) {
  background-color: var(--bg-light);
}

.calendar-day.selected {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
}

.calendar-day.other-month {
  color: var(--text-muted);
  background-color: #f5f5f5;
}

.calendar-day.disabled {
  cursor: not-allowed;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ============================================
   MATRIX VIEW (POLL RESULTS)
   ============================================ */

.matrix-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-white);
  min-width: 500px;
}

.matrix th,
.matrix td {
  padding: var(--spacing-md);
  text-align: center;
  border: 1px solid var(--border-light);
}

.matrix th {
  background-color: var(--primary);
  color: white;
  font-weight: 600;
}

.matrix tbody th {
  background-color: var(--bg-light);
  font-weight: 600;
  text-align: left;
}

.matrix-cell {
  position: relative;
  cursor: default;
}

.matrix-cell.yes {
  background-color: #d4edda;
  color: #155724;
}

.matrix-cell.maybe {
  background-color: #fff3cd;
  color: #856404;
}

.matrix-cell.no {
  background-color: #f8d7da;
  color: #721c24;
}

.matrix-cell.empty {
  background-color: #f5f5f5;
}

.matrix-best {
  border: 3px solid var(--success);
  font-weight: 600;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: var(--spacing-xxl) var(--spacing-lg);
  text-align: center;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   PAGE LAYOUT
   ============================================ */

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  h1 { font-size: var(--font-size-xxl); }
  h2 { font-size: var(--font-size-xl); }
  
  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden { display: none !important; }
.visible { display: block !important; }

.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-white); }
.bg-primary { background-color: var(--primary); }

.border-top { border-top: 1px solid var(--border-light); }
.border-bottom { border-bottom: 1px solid var(--border-light); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }

.shadow { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }