/* ===== REQUIRED VARIABLES (Must match index.html) ===== */
:root {
    --bg-dark: #020617;
    --sidebar-bg: #0f172a;
    --accent: #38bdf8;
    --accent-purple: #a855f7;
    --accent-glow: rgba(56, 189, 248, 0.3);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* ===== ACADEMIC TIMELINE CSS ===== */
.academic-wrapper {
    margin-left: 260px; /* Space for sidebar */
    padding: 80px 5%;
    min-height: 100vh;
    background-color: var(--bg-dark);
    position: relative;
    z-index: 1; /* Ensures content stays above background grid */
}

/* Background Grid Overlay (To match Home page) */
.academic-wrapper::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px), 
                      linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

.glow-text {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(90deg, #fff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    line-height: 1.2;
}

.subtitle {
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 60px;
}

/* Timeline Logic */
.timeline-container {
    position: relative;
    max-width: 900px;
    width: 100%;
}

/* The vertical line */
.timeline-container::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 80px;
}

.timeline-node {
    position: absolute;
    left: 14px; /* Centered on line */
    top: 0;
    width: 34px;
    height: 34px;
    background: var(--bg-dark);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    z-index: 2;
}

/* The Glass Cards */
.academic-glass-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 30px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
}

.academic-glass-card:hover {
    border-color: var(--accent);
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.academic-glass-card.latest {
    border-left: 4px solid var(--accent);
    background: linear-gradient(90deg, rgba(56, 189, 248, 0.05), transparent);
}

.year-label {
    display: inline-block;
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.8rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.academic-glass-card h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: #fff;
    font-weight: 700;
}

.institution {
    color: var(--text-dim);
    font-size: 1rem;
    margin-bottom: 25px;
}

/* Detail Grid inside Card */
.academic-details {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
}

.detail-item span {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.detail-item strong {
    font-size: 1.1rem;
    color: #fff;
    font-weight: 600;
}

/* Responsive Fixes */
@media (max-width: 1024px) {
    .academic-wrapper { margin-left: 80px; padding: 60px 5%; }
}

@media (max-width: 600px) {
    .glow-text { font-size: 2rem; }
    .timeline-container::before { left: 20px; }
    .timeline-item { padding-left: 50px; }
    .timeline-node { 
        left: 4px; 
        width: 28px; 
        height: 28px; 
    }
    .academic-glass-card { padding: 20px; }
    .academic-glass-card h3 { font-size: 1.3rem; }
    .academic-details { gap: 15px; }
}