/* ========================================
   FUTURE TECH TIMELINE STYLES
   Paste this into your existing style.css
   ======================================== */

/* Container */
.future-timeline-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 10px;
    font-family: 'Arial', sans-serif;
    background: var(--color-one);
}

.future-timeline-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.future-timeline-header h2 {
    color: var(--color-two);
    font-size: 2.5em;
    margin: 0 0 15px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-two), var(--color-four));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-subtitle {
    color: var(--color-two);
    font-size: 1.2em;
    opacity: 0.8;
    margin: 0;
    font-weight: 300;
}

/* Timeline structure */
.future-timeline {
    position: relative;
    margin: 0 auto;
    padding: 20px 0;
}

.future-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--color-four), var(--color-two));
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
    opacity: 0.6;
}

/* Timeline items */
.future-timeline-item {
    padding: 10px 30px;
    position: relative;
    width: 48%;
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    margin-bottom: 40px;
}

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

.future-timeline-item.left {
    left: 0;
    text-align: right;
}

.future-timeline-item.right {
    left: 52%;
    text-align: left;
}

/* Year marker */
.timeline-year-marker {
    position: absolute;
    width: 140px;
    height: 140px;
    background: var(--color-one);
    border: 4px solid var(--color-four);
    border-radius: 50%;
    top: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.future-timeline-item.left .timeline-year-marker {
    right: -70px;
}

.future-timeline-item.right .timeline-year-marker {
    left: -70px;
}

.timeline-year-marker:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.year-text {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--color-four);
    line-height: 1;
}

.years-until {
    font-size: 0.75em;
    color: var(--color-two);
    opacity: 0.7;
    margin-top: 5px;
}

/* Time status colors */
.future-timeline-item.achieved .timeline-year-marker {
    border-color: #4CAF50;
    background: linear-gradient(135deg, #E8F5E9, var(--color-one));
}

.future-timeline-item.happening .timeline-year-marker {
    border-color: #FF9800;
    background: linear-gradient(135deg, #FFF3E0, var(--color-one));
    animation: pulse 2s infinite;
}

.future-timeline-item.near .timeline-year-marker {
    border-color: var(--color-four);
}

.future-timeline-item.medium .timeline-year-marker {
    border-color: var(--color-two);
    opacity: 0.9;
}

.future-timeline-item.far .timeline-year-marker {
    border-color: var(--color-three);
    opacity: 0.75;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15); }
    50% { transform: scale(1.05); box-shadow: 0 6px 25px rgba(255, 152, 0, 0.4); }
}

/* Content box */
.future-timeline-content {
    padding: 25px;
    background: var(--color-one);
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid var(--color-three);
}

.future-timeline-item.left .future-timeline-content {
    margin-right: 90px;
}

.future-timeline-item.right .future-timeline-content {
    margin-left: 90px;
}

.future-timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* Milestone header */
.milestone-header {
    margin-bottom: 20px;
}

.milestone-header h3 {
    margin: 0 0 12px;
    color: var(--color-two);
    font-size: 1.7em;
    font-weight: 600;
    line-height: 1.3;
}

.milestone-badges {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.future-timeline-item.left .milestone-badges {
    justify-content: flex-end;
}

/* Badges */
.impact-badge, .probability-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.impact-badge.impact-low {
    background: #E3F2FD;
    color: #1976D2;
}

.impact-badge.impact-medium {
    background: #FFF3E0;
    color: #F57C00;
}

.impact-badge.impact-high {
    background: #FFEBEE;
    color: #C62828;
}

.impact-badge.impact-revolutionary {
    background: linear-gradient(135deg, #D500F9, #651FFF);
    color: white;
}

.probability-badge {
    background: var(--color-three);
    color: var(--color-two);
}

/* Description */
.milestone-description {
    margin: 0 0 20px;
    color: var(--color-two);
    font-size: 1.05em;
    line-height: 1.7;
}

/* Requirements and Applications */
.milestone-requirements,
.milestone-applications {
    margin: 15px 0;
    padding: 15px;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 12px;
    border-left: 4px solid var(--color-four);
}

.milestone-requirements strong,
.milestone-applications strong {
    color: var(--color-two);
    font-size: 0.95em;
    display: block;
    margin-bottom: 8px;
}

.milestone-requirements ul,
.milestone-applications ul {
    margin: 0;
    padding-left: 20px;
    color: var(--color-two);
}

.milestone-requirements li,
.milestone-applications li {
    margin: 6px 0;
    font-size: 0.95em;
    line-height: 1.5;
}

/* Details */
.milestone-details {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 15px 0;
}

.future-timeline-item.left .milestone-details {
    justify-content: flex-end;
}

.detail-tag {
    background: var(--color-three);
    color: var(--color-two);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.85em;
}

/* Sources */
.milestone-sources {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 2px solid var(--color-three);
}

.milestone-sources strong {
    color: var(--color-two);
    font-size: 0.9em;
    display: block;
    margin-bottom: 8px;
}

.source-link {
    display: inline-block;
    color: var(--color-four);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9em;
    transition: color 0.2s ease;
}

.source-link:hover {
    color: var(--color-two);
    text-decoration: underline;
}

/* Decade markers */
.decade-marker {
    position: relative;
    text-align: center;
    margin: 60px 0;
    z-index: 1;
}

.decade-line {
    height: 2px;
    background: var(--color-three);
    opacity: 0.5;
}

.decade-label {
    display: inline-block;
    background: var(--color-one);
    color: var(--color-two);
    padding: 8px 25px;
    border-radius: 25px;
    font-size: 1.4em;
    font-weight: 700;
    border: 3px solid var(--color-three);
    position: relative;
    top: -20px;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .future-timeline::before {
        left: 30px;
    }
    
    .future-timeline-item {
        width: 100%;
        padding: 10px 20px 10px 100px;
        text-align: left !important;
    }
    
    .future-timeline-item.left,
    .future-timeline-item.right {
        left: 0;
    }
    
    .timeline-year-marker {
        width: 100px;
        height: 100px;
        left: -35px !important;
        right: auto !important;
    }
    
    .year-text {
        font-size: 1.4em;
    }
    
    .years-until {
        font-size: 0.65em;
    }
    
    .future-timeline-item.left .future-timeline-content,
    .future-timeline-item.right .future-timeline-content {
        margin-left: 0;
        margin-right: 0;
    }
    
    .future-timeline-content {
        border-radius: 15px;
    }
    
    .future-timeline-header h2 {
        font-size: 1.8em;
    }
    
    .timeline-subtitle {
        font-size: 1em;
    }
    
    .milestone-header h3 {
        font-size: 1.4em;
    }
    
    .milestone-badges {
        justify-content: flex-start !important;
    }
    
    .milestone-details {
        justify-content: flex-start !important;
    }
    
    .decade-label {
        font-size: 1.1em;
        padding: 6px 18px;
    }
}

/* Print styles */
@media print {
    .future-timeline-item {
        page-break-inside: avoid;
    }
}