/* Timeline Styles - Atlantic Group Infographic Design */

.timeline-main {
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
  min-height: 100vh;
  background: #F7F5F0;
  position: relative;
}

/* Removed top border - using clean background */

.timeline-container {
  max-width: min(90%, 1000px);
  margin: 0 auto;
  box-sizing: border-box;
}

/* Responsive adjustments */
@media screen and (max-width: 767px) {
  .timeline-container {
    padding: var(--spacing-md);
  }

  .timeline-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    width: 100%;
    min-width: 0;
  }

  .search-input {
    width: 100%;
  }
}

@media screen and (min-width: 1024px) {
  .timeline-container {
    max-width: min(95%, 1200px);
    padding: var(--spacing-xl);
  }
}

.page-header {
  text-align: center;
  margin-bottom: clamp(var(--spacing-sm), 1.5vw + 0.5rem, var(--spacing-md));
  padding-bottom: clamp(var(--spacing-xs), 1vw + 0.25rem, var(--spacing-sm));
  border-bottom: 0.125rem solid rgba(46, 204, 113, 0.2);
}

.page-title {
  font-size: clamp(var(--font-size-md), 2vw + 0.5rem, var(--font-size-lg));
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-heading);
}

.page-subtitle {
  font-size: clamp(var(--font-size-sm), 1.2vw + 0.4rem, var(--font-size-sm));
  color: var(--text-muted);
  margin-bottom: 0;
}

.timeline-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(var(--spacing-xs), 1.5vw + 0.25rem, var(--spacing-md));
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  padding: clamp(var(--spacing-sm), 2vw + 0.5rem, var(--spacing-md));
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border: 1px solid rgba(46, 204, 113, 0.1);
  box-sizing: border-box;
  width: 100%;
}

.search-box {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.search-input {
  flex: 1;
  min-width: 0;
  max-width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-md);
  font-family: var(--font-body);
  border: none;
  border-radius: var(--border-radius);
  background-color: #f0f0f0;
  color: var(--text-main);
  transition: all var(--transition);
  text-align: right;
  direction: rtl;
  box-sizing: border-box;
  width: 100%;
}

.search-input:focus {
  outline: none;
  background-color: #e8e8e8;
  box-shadow: 0 0 0 0.1875rem rgba(46, 204, 113, 0.1);
}

.filter-box {
  display: flex;
  align-items: center;
  gap: clamp(var(--spacing-xs), 1vw + 0.25rem, var(--spacing-sm));
  flex-wrap: wrap;
}

.filter-label {
  font-size: clamp(var(--font-size-sm), 1.2vw + 0.4rem, var(--font-size-sm));
  color: var(--text-main);
  font-weight: 500;
  white-space: nowrap;
}

.type-filter {
  padding: clamp(var(--spacing-xs), 1.5vw + 0.25rem, var(--spacing-sm)) clamp(var(--spacing-sm), 2vw + 0.5rem, var(--spacing-md));
  font-size: clamp(var(--font-size-sm), 1.5vw + 0.5rem, var(--font-size-md));
  font-family: var(--font-body);
  border: none;
  border-radius: var(--border-radius);
  background-color: #f0f0f0;
  cursor: pointer;
  transition: all var(--transition);
  box-sizing: border-box;
  min-width: 0;
}

.type-filter:focus {
  outline: none;
  background-color: #e8e8e8;
  box-shadow: 0 0 0 0.1875rem rgba(46, 204, 113, 0.1);
}

/* ============================================
   Vertical Zig-Zag Timeline Design (Atlantic Group Style)
   ============================================ */

.timeline {
  position: relative;
  padding: var(--spacing-xl) 0.5rem; /* px-2 on mobile */
  width: 100%;
  max-width: 896px; /* max-w-4xl */
  margin: 0 auto;
}

@media screen and (min-width: 768px) {
  .timeline {
    padding: var(--spacing-xl) var(--spacing-md); /* md:px-4 */
  }
}

/* Main Timeline Wrapper - Vertical Stack */
.timeline-wrapper {
  position: relative;
  width: 100%;
  padding: var(--spacing-md) 0;
}

/* Timeline Events Container - Vertical Stack */
.timeline-events-container {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
}

/* Timeline Item (Year Card) - Symmetric Grid */
.timeline-item {
  position: relative;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr; /* 2 equal columns */
  gap: 0;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Left Column - Now used for Even Years (0, 2, 4...) */
.timeline-item-left .timeline-event-card {
  grid-column: 2; /* Right column - SWAPPED */
  justify-self: center; /* Center card in right column */
  width: 90%; /* Use more width on mobile */
  max-width: 160px; /* Narrow on mobile */
}

@media screen and (min-width: 768px) {
  .timeline-item-left .timeline-event-card {
    width: 100%;
    max-width: 350px; /* Full width on desktop */
  }
}

/* Right Column - Now used for Odd Years (1, 3, 5...) */
.timeline-item-right .timeline-event-card {
  grid-column: 1; /* Left column - SWAPPED */
  justify-self: center; /* Center card in left column */
  width: 90%; /* Use more width on mobile */
  max-width: 160px; /* Narrow on mobile */
}

@media screen and (min-width: 768px) {
  .timeline-item-right .timeline-event-card {
    width: 100%;
    max-width: 350px; /* Full width on desktop */
  }
}

/* Connector Component - Between Cards - Pure SVG Implementation */
/* Container: ONLY for positioning, NO visual styling */
.timeline-connector-row {
  position: relative;
  width: 100%;
  height: 64px; /* h-16 = 4rem = 64px */
  display: block;
  z-index: 1;
  background: transparent !important; /* CRITICAL: Absolutely NO background color to eliminate square artifacts */
  border: none !important;
  outline: none !important;
  /* NO visual styling whatsoever */
}

/* SVG Element: Pure SVG, NO divs or blocks */
.timeline-connector-svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
  pointer-events: none;
  background: transparent !important; /* CRITICAL: No background */
  fill: none; /* SVG fill is none */
  /* NO border, NO visual styling */
}

/* Path styling: All set via JavaScript SVG attributes */
/* NO CSS styling here to avoid conflicts */
/* All attributes (fill, stroke, stroke-width, stroke-linejoin) are set in JavaScript */
/* This ensures pure SVG implementation with no CSS interference */

/* Timeline Event Card - Base Styles (Infographic Design) */
.timeline-event-card {
  position: relative;
  width: 90%; /* Use more width on mobile */
  max-width: 160px; /* Narrow on mobile */
  border-radius: 12px;
  padding: 0.75rem; /* p-3 on mobile - Reduced padding */
  direction: rtl;
  text-align: right;
  z-index: 2;
  cursor: pointer;
  overflow: visible;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.1); /* Solid offset shadow */
}

@media screen and (min-width: 768px) {
  .timeline-event-card {
    width: 100%;
    max-width: 350px; /* Full width on desktop */
    padding: 1.25rem; /* p-6 on desktop */
  }
}

/* Style A (Filled) - Even Items: Solid Royal Blue Background, White Text */
.timeline-event-card.card-filled {
  background: #4338CA;
  color: #ffffff;
  border: none;
}

/* Style B (Outlined) - Odd Items: Cream Background, Dark Blue Text, Thick Blue Border */
.timeline-event-card.card-outlined {
  background: #F7F5F0;
  color: #3730A3;
  border: 2px solid #4338CA;
}

/* Icon Badge - Removed (no icons in cards) */

/* Event Year/Date - Reduced Size (Compact) */
.timeline-event-year {
  font-size: 1.25rem; /* text-xl on mobile - Increased for readability */
  font-weight: 700; /* font-bold */
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-heading);
  line-height: 1.2;
  text-align: right;
}

@media screen and (min-width: 768px) {
  .timeline-event-year {
    font-size: 1.5rem; /* text-2xl on desktop */
  }
}

/* Year color for Filled Cards - White */
.card-filled .timeline-event-year {
  color: #ffffff;
}

/* Year color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-event-year {
  color: #3730A3;
}

/* Event Title */
.timeline-event-title {
  font-size: clamp(var(--font-size-md), 1.8vw + 0.5rem, var(--font-size-lg));
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
  text-align: right;
}

/* Title color for Filled Cards - White */
.card-filled .timeline-event-title {
  color: #ffffff;
}

/* Title color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-event-title {
  color: #3730A3;
}

/* Event Description */
.timeline-event-description {
  font-size: clamp(var(--font-size-sm), 1.2vw + 0.4rem, var(--font-size-md));
  line-height: 1.6;
  margin-bottom: var(--spacing-xs);
  text-align: right;
}

/* Description color for Filled Cards - White */
.card-filled .timeline-event-description {
  color: #ffffff;
}

/* Description color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-event-description {
  color: #3730A3;
}

/* Event Person Name */
.timeline-event-person {
  font-size: clamp(var(--font-size-sm), 1.2vw + 0.4rem, var(--font-size-md));
  font-weight: 600;
  margin-top: var(--spacing-xs);
  text-align: right;
}

/* Person color for Filled Cards - White */
.card-filled .timeline-event-person {
  color: #ffffff;
}

/* Person color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-event-person {
  color: #3730A3;
}

/* Year Events List */
.timeline-year-events-list {
  margin-top: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

/* Year Event Item */
.timeline-year-event-item {
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.timeline-year-event-item:last-child {
  border-bottom: none;
}

/* Year Event Text */
.timeline-year-event-text {
  font-size: 0.875rem; /* text-sm - base size */
  line-height: 1.5;
  text-align: right;
}

@media screen and (max-width: 767px) {
  .timeline-year-event-text {
    font-size: 1rem; /* text-base on mobile - Increased for readability */
  }
}

/* Year Event Text color for Filled Cards - White */
.card-filled .timeline-year-event-text {
  color: #ffffff;
}

/* Year Event Text color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-year-event-text {
  color: #3730A3;
}

/* Year Event Date */
.timeline-year-event-date {
  font-size: clamp(var(--font-size-xs), 1vw + 0.3rem, var(--font-size-sm));
  margin-top: 0.25rem;
  font-weight: 500;
  text-align: right;
  opacity: 0.8;
}

/* Year Event Date color for Filled Cards - White */
.card-filled .timeline-year-event-date {
  color: rgba(255, 255, 255, 0.85);
}

/* Year Event Date color for Outlined Cards - Dark Royal Blue */
.card-outlined .timeline-year-event-date {
  color: rgba(55, 48, 163, 0.8);
}

/* Responsive - Mobile: Keep Zig-Zag with Narrow Cards */
@media screen and (max-width: 767px) {
  .timeline-wrapper {
    padding: var(--spacing-lg) 0;
  }

  /* Keep grid structure on mobile - maintain zig-zag */
  .timeline-item {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important; /* Keep 2 columns */
    gap: 0.5rem; /* Small gap on mobile */
  }

  /* Cards remain in their columns, just narrower */
  /* Width and max-width already set above in base styles */

  /* Keep SVG connectors visible on mobile */
  .timeline-connector-row {
    height: 40px; /* Smaller height on mobile */
  }
}

.no-events {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--bg-card);
  border-radius: var(--border-radius);
  color: var(--text-muted);
  font-size: var(--font-size-md);
  box-shadow: var(--box-shadow);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: var(--z-modal);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(0.25rem);
  overflow-y: auto;
}

.modal-content {
  background-color: var(--bg-card);
  margin: 5% auto;
  padding: clamp(var(--spacing-lg), 3vw + var(--spacing-md), var(--spacing-xl));
  border-radius: var(--border-radius);
  width: 90%;
  max-width: 37.5rem;
  box-shadow: 0 0.5rem 2.5rem rgba(0, 0, 0, 0.15);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  border-top: 0.25rem solid #2ecc71;
  animation: fadeInUp 0.3s ease-out;
  box-sizing: border-box;
}

.close {
  color: var(--text-muted);
  float: left;
  font-size: var(--font-size-xxl);
  font-weight: bold;
  cursor: pointer;
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-md);
  transition: all var(--transition);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.close:hover,
.close:focus {
  color: var(--text-main);
  background-color: rgba(0, 0, 0, 0.05);
}

.event-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: clamp(var(--font-size-sm), 1.2vw + 0.4rem, var(--font-size-sm));
  font-weight: 500;
  color: var(--text-main);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: clamp(var(--spacing-xs), 1.5vw + 0.25rem, var(--spacing-sm)) clamp(var(--spacing-sm), 2vw + 0.5rem, var(--spacing-md));
  font-size: clamp(var(--font-size-sm), 1.5vw + 0.5rem, var(--font-size-md));
  font-family: var(--font-body);
  border: none;
  border-radius: var(--border-radius);
  transition: all var(--transition);
  background-color: #f0f0f0;
  box-sizing: border-box;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  background-color: #e8e8e8;
  box-shadow: 0 0 0 0.1875rem rgba(46, 204, 113, 0.1);
}

.form-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Responsive - Mobile */
@media screen and (max-width: 767px) {
  .timeline-main {
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md);
  }

  .timeline-container {
    max-width: 100%;
    padding: 0 var(--spacing-md);
  }

  .timeline {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .page-title {
    font-size: var(--font-size-md);
  }

  .timeline-controls {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    align-items: stretch;
  }

  .timeline-controls .btn-primary {
    width: 100%;
    min-height: 2.5rem;
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }

  .search-box {
    width: 100%;
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .search-input {
    width: 100%;
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }

  .filter-box {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-xs);
  }

  .filter-label {
    font-size: var(--font-size-sm);
  }

  .type-filter {
    width: 100%;
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }

  .modal-content {
    padding: var(--spacing-md);
    margin: var(--spacing-sm);
    width: calc(100% - 2rem);
    max-width: calc(100% - 2rem);
  }

  .modal-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .modal-header h2 {
    font-size: var(--font-size-md);
    width: 100%;
  }

  .close {
    position: absolute;
    top: var(--spacing-xs);
    left: var(--spacing-xs);
    width: 2rem;
    height: 2rem;
    font-size: var(--font-size-xl);
  }

  .event-form {
    gap: var(--spacing-sm);
  }

  .form-group {
    gap: var(--spacing-xs);
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }

  .form-group label {
    font-size: var(--font-size-sm);
  }

  .form-actions {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .form-actions button {
    width: 100%;
    min-height: 2.5rem;
    font-size: var(--font-size-sm);
  }
}

@media screen and (max-width: 479px) {
  .timeline-main {
    padding: var(--spacing-xs) var(--spacing-xs) var(--spacing-sm);
  }

  .page-header {
    margin-bottom: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
  }

  .page-title {
    font-size: var(--font-size-sm);
    margin-bottom: 0.25rem;
  }

  .page-subtitle {
    font-size: 0.7rem;
  }

  .timeline {
    padding: var(--spacing-md) var(--spacing-xs);
  }

  .timeline-controls {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .timeline-controls .btn-primary {
    font-size: 0.75rem;
    padding: 0.4rem var(--spacing-sm);
    min-height: 2.25rem;
  }

  .search-input {
    font-size: 0.75rem;
    padding: 0.4rem var(--spacing-sm);
  }

  .type-filter {
    font-size: 0.75rem;
    padding: 0.4rem var(--spacing-sm);
  }

  .modal-content {
    padding: var(--spacing-sm);
    margin: 0.5rem;
    width: calc(100% - 1rem);
    max-width: calc(100% - 1rem);
  }

  .modal-header h2 {
    font-size: var(--font-size-sm);
  }

  .close {
    width: 1.75rem;
    height: 1.75rem;
    font-size: var(--font-size-lg);
  }

  .timeline-event-card {
    padding: var(--spacing-md);
  }

  .timeline-event-year {
    font-size: clamp(1.2rem, 4vw + 0.8rem, 2rem);
  }

  .timeline-event-title {
    font-size: clamp(var(--font-size-sm), 2vw + 0.4rem, var(--font-size-md));
  }
}