/* Interactive Curved Resume Timeline Pro - Stylesheet */

:root {
  /* Color Palette & Customizer Variables */
  --ic-bg-color: #f7f6f0;
  --ic-card-bg: #ffffff;
  --ic-card-border: rgba(0, 0, 0, 0.06);
  --ic-card-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
  
  --ic-primary-color: #1a1a1a;
  --ic-text-muted: #555555;
  --ic-accent-color: #d4a300; /* Bold Yellow / Gold accent matching video */
  --ic-accent-light: #fff8d6;
  
  --ic-line-color: #dcd8c8;
  --ic-tracer-color: #eab308;
  
  --ic-font-ar: 'Cairo', 'Tajawal', sans-serif;
  --ic-font-en: 'Outfit', 'Inter', sans-serif;
  
  --ic-card-radius: 20px;
  --ic-transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Dark Theme Support */
.ic-timeline-wrapper.ic-dark-theme {
  --ic-bg-color: #121316;
  --ic-card-bg: #1e2025;
  --ic-card-border: rgba(255, 255, 255, 0.08);
  --ic-card-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
  --ic-primary-color: #f3f4f6;
  --ic-text-muted: #9ca3af;
  --ic-line-color: #2e323b;
  --ic-accent-light: rgba(234, 179, 8, 0.15);
}

/* Container */
.ic-timeline-wrapper {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 80px 20px;
  box-sizing: border-box;
  font-family: var(--ic-font-ar);
  direction: rtl;
  color: var(--ic-primary-color);
  background-color: var(--ic-bg-color);
  border-radius: 24px;
}

.ic-timeline-wrapper[dir="ltr"],
.ic-timeline-wrapper.ic-lang-en {
  direction: ltr;
  font-family: var(--ic-font-en);
}

/* Section Header */
.ic-timeline-header {
  text-align: center;
  margin-bottom: 50px;
}

.ic-timeline-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0 0 15px 0;
  letter-spacing: -0.5px;
  color: var(--ic-primary-color);
}

.ic-timeline-subtitle {
  font-size: 1.1rem;
  color: var(--ic-text-muted);
  margin: 0;
}

/* Category Filter Tabs */
.ic-timeline-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 25px;
  flex-wrap: wrap;
}

.ic-filter-btn {
  background: var(--ic-card-bg);
  border: 1px solid var(--ic-card-border);
  color: var(--ic-primary-color);
  padding: 10px 24px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--ic-transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.ic-filter-btn:hover {
  transform: translateY(-2px);
  border-color: var(--ic-accent-color);
}

.ic-filter-btn.active {
  background: var(--ic-primary-color);
  color: #ffffff;
  border-color: var(--ic-primary-color);
}

/* SVG Line & Canvas Area */
.ic-timeline-container {
  position: relative;
  width: 100%;
  margin-top: 30px;
}

.ic-svg-line-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.ic-svg-path {
  fill: none;
  stroke: var(--ic-line-color);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.3s ease, stroke-dashoffset 0.08s linear;
}

.ic-tracer-dot {
  fill: var(--ic-tracer-color);
  filter: drop-shadow(0 0 10px var(--ic-tracer-color));
  transition: opacity 0.3s ease, r 0.3s ease;
}

/* Timeline Nodes/Cards Structure */
.ic-timeline-list {
  display: flex;
  flex-direction: column;
  gap: 60px;
  position: relative;
  z-index: 2;
  padding: 20px 0;
}

.ic-timeline-item {
  display: flex;
  align-items: center;
  width: 100%;
  position: relative;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.ic-timeline-item.ic-hidden {
  display: none !important;
}

.ic-timeline-item.ic-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Alternating Card Placement */
.ic-timeline-item.ic-item-left {
  justify-content: flex-start;
}

.ic-timeline-item.ic-item-right {
  justify-content: flex-end;
}

/* Timeline Card */
.ic-card {
  width: 46%;
  background: var(--ic-card-bg);
  border: 1px solid var(--ic-card-border);
  border-radius: var(--ic-card-radius);
  padding: 28px 32px;
  box-shadow: var(--ic-card-shadow);
  position: relative;
  transition: var(--ic-transition);
  box-sizing: border-box;
}

.ic-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: rgba(212, 163, 0, 0.3);
}

/* Node Point (Circle on card edge) */
.ic-node-point {
  position: absolute;
  top: 40px;
  width: 16px;
  height: 16px;
  background: var(--ic-card-bg);
  border: 3.5px solid var(--ic-accent-color);
  border-radius: 50%;
  z-index: 3;
  box-shadow: 0 0 0 4px var(--ic-accent-light);
}

.ic-timeline-wrapper[dir="rtl"] .ic-item-left .ic-node-point {
  left: -8px;
}

.ic-timeline-wrapper[dir="rtl"] .ic-item-right .ic-node-point {
  right: -8px;
}

.ic-timeline-wrapper[dir="ltr"] .ic-item-left .ic-node-point {
  right: -8px;
}

.ic-timeline-wrapper[dir="ltr"] .ic-item-right .ic-node-point {
  left: -8px;
}

/* Year Badge */
.ic-card-year {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--ic-accent-color);
  line-height: 1;
  margin-bottom: 12px;
  display: inline-block;
  letter-spacing: -0.5px;
}

/* Badge Tag */
.ic-card-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--ic-accent-light);
  color: var(--ic-accent-color);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.ic-timeline-wrapper[dir="rtl"] .ic-card-badge {
  margin-right: 10px;
}

.ic-timeline-wrapper[dir="ltr"] .ic-card-badge {
  margin-left: 10px;
}

/* Title & Description */
.ic-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 10px 0;
  line-height: 1.35;
  color: var(--ic-primary-color);
}

.ic-card-institution {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ic-accent-color);
  margin-bottom: 12px;
}

.ic-card-description {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--ic-text-muted);
  margin: 0 0 20px 0;
}

/* Card Footer / Meta */
.ic-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--ic-card-border);
  margin-top: 15px;
}

.ic-meta-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ic-author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--ic-card-border);
}

.ic-author-info {
  display: flex;
  flex-direction: column;
}

.ic-author-handle {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ic-primary-color);
}

.ic-author-time {
  font-size: 0.78rem;
  color: var(--ic-text-muted);
}

.ic-btn-readmore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: transparent;
  border: 1px solid var(--ic-card-border);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ic-primary-color);
  text-decoration: none;
  transition: var(--ic-transition);
}

.ic-btn-readmore:hover {
  background: var(--ic-primary-color);
  color: #ffffff;
  border-color: var(--ic-primary-color);
}

/* Responsive Mobile Rules */
@media (max-width: 768px) {
  .ic-card {
    width: 88%;
  }

  .ic-timeline-item.ic-item-left,
  .ic-timeline-item.ic-item-right {
    justify-content: flex-end;
  }

  .ic-timeline-wrapper[dir="rtl"] .ic-timeline-item.ic-item-left,
  .ic-timeline-wrapper[dir="rtl"] .ic-timeline-item.ic-item-right {
    justify-content: flex-start;
  }

  .ic-card-year {
    font-size: 1.8rem;
  }

  .ic-card-title {
    font-size: 1.15rem;
  }
}