/* --- Education Page Specific Styles --- */

/* Added a subtle vignette background to focus attention */
body {
    background: radial-gradient(ellipse at center, var(--surface-color) 0%, var(--background-color) 70%);
}

/* Main headline style for the page */
.page-headline {
    text-align: center;
    margin-bottom: 3rem;
}

.page-headline h1 {
    font-size: 2.5rem;
    text-shadow: 0 0 10px var(--primary-color-glow), 0 0 20px rgba(0, 255, 204, 0.3);
    margin-bottom: 0.5rem;
}

.page-headline p {
    color: var(--text-muted-color);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}


/* --- Timeline Container (Skill Tree Trunk) --- */
.timeline {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* The vertical line - the trunk of the skill tree */
.timeline::after {
    content: '';
    position: absolute;
    width: 4px; /* Slightly thicker */
    background: linear-gradient(
            to bottom,
            rgba(0,0,0,0) 0%,
            var(--primary-color) 20%,
            var(--primary-color) 80%,
            rgba(0,0,0,0) 100%
    );
    box-shadow: 0 0 20px var(--primary-color-glow);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    z-index: 1;
}


/* --- Timeline Item (Skill Branch & Node) --- */
.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    margin-bottom: 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

/* The horizontal connector line from trunk to the card */
.timeline-item::before {
    content: '';
    position: absolute;
    top: 39px;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color-glow);
    z-index: 1;
}

.timeline-item:nth-child(odd)::before {
    right: 30px;
}

.timeline-item:nth-child(even)::before {
    left: 30px;
}

/* The dot on the timeline */
.timeline-item::after {
    content: '';
    position: absolute;
    width: 25px; /* Increased size */
    height: 28px; /* Adjusted for hexagon ratio */
    background-color: var(--background-color);
    border: 3px solid var(--primary-color);
    top: 28px;
    border-radius: 0; /* Remove rounding */
    z-index: 2;
    box-shadow: 0 0 20px var(--primary-color-glow);
    transition: all 0.4s ease;
    /* Hexagon shape */
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.timeline-item:nth-child(odd)::after {
    right: -14px;
}

.timeline-item:nth-child(even)::after {
    left: -14px;
}

/* Animate the node on hover like unlocking a skill */
@keyframes spin-glow {
    0% { transform: rotate(0deg); box-shadow: 0 0 20px var(--primary-color-glow); }
    100% { transform: rotate(360deg); box-shadow: 0 0 35px 5px var(--primary-color-glow); }
}

.timeline-item:hover::after {
    background-color: var(--primary-color);
    transform: rotate(360deg);
    box-shadow: 0 0 35px 5px var(--primary-color-glow);
}

/* -- Skill Description Panel -- */

/* Wrapper for the glowing gradient border effect */
.timeline-card-wrapper {
    position: relative;
    padding: 3px; /* Controls the border thickness */
    overflow: hidden;
    /* Angular shape for the wrapper */
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

/* The gradient that forms the border */
.timeline-card-wrapper::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: conic-gradient(
            var(--primary-color),
            var(--primary-color-glow),
            var(--primary-color),
            #333, /* Dark part of the border */
            #333,
            var(--primary-color)
    );
    z-index: -1;
    transition: transform 0.5s ease;
}

/* The content card is now simpler, placed inside the wrapper */
.timeline-content {
    padding: 30px;
    background-color: #1a1a1a; /* Darker, more contrasty */
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
    /* Same angular shape as the wrapper, but slightly smaller */
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}


.timeline-item:hover .timeline-card-wrapper {
    transform: translateY(-5px);
}

.timeline-item:hover .timeline-card-wrapper::before {
    /* Spin the gradient on hover for a cool effect */
    transform: rotate(180deg);
}

/* Icon for each major step in the timeline */
.timeline-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    opacity: 0.1;
    color: var(--primary-color);
    text-shadow: 0 0 15px var(--primary-color);
    transition: opacity 0.3s ease;
}

.timeline-item:hover .timeline-icon {
    opacity: 0.25;
}


/* Styling content inside the card */
.timeline-content h2 {
    margin-top: 0;
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
    color: #fff; /* Ensure high contrast */
}

.timeline-date {
    font-family: var(--font-secondary);
    color: var(--primary-color); /* Highlight the date */
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.timeline-content p, .timeline-content ul {
    margin-bottom: 0;
}

.timeline-content ul {
    list-style-type: none;
    padding-left: 0;
}

.timeline-content ul li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

/* Using a more tech-y bullet point */
.timeline-content ul li::before {
    content: '»';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    top: 8px;
    font-weight: bold;
}


/* --- Tags for Modules & Certs (Data Chips) --- */
.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 1rem;
}

.tag {
    display: inline-block;
    background: rgba(45, 45, 45, 0.8);
    color: var(--text-muted-color);
    padding: 6px 14px;
    border-radius: 0; /* Remove rounding */
    font-size: 0.8rem;
    font-family: var(--font-secondary);
    border: 1px solid #333;
    transition: all 0.3s ease;
    /* NEW: Angular "data chip" shape */
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 100%, 0 100%);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--background-color);
    border-color: var(--primary-color);
    transform: scale(1.05); /* Add a slight pop */
}


/* --- Responsive Design for Timeline --- */
@media screen and (max-width: 900px) {
    .page-headline h1 {
        font-size: 2rem;
    }

    .timeline::after {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 65px; /* Increase padding for icon space */
        padding-right: 15px;
        left: 0 !important;
    }

    .timeline-item::after {
        left: 8px;
    }

    /* Hide the connector lines on mobile as they don't make sense */
    .timeline-item::before {
        display: none;
    }
}