/* Custom Styles for the Digital Neural Network Theme */
:root {
    --dark-navy: #0a192f;
    --light-navy: #112240;
    --lightest-navy: #233554;
    --slate: #8892b0;
    --light-slate: #a8b2d1;
    --lightest-slate: #ccd6f6;
    --cyan: #64ffda;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--dark-navy);
    color: var(--slate);
    font-family: var(--font-mono);
    line-height: 1.5;
}

/* Navbar */
#navbar {
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    transition: box-shadow 0.3s ease, padding 0.3s ease;
    padding: 1.5rem 0;
}

#navbar.scrolled {
    box-shadow: 0 10px 30px -10px rgba(10, 25, 47, 0.7);
    padding: 1rem 0;
}

.nav-link {
    color: var(--lightest-slate);
    position: relative;
    transition: color 0.3s ease;
    padding-bottom: 5px;
}
.nav-link:hover {
    color: var(--cyan);
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--cyan);
    transition: width 0.3s ease;
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}


/* Canvas Background */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.3;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--dark-navy);
}
::-webkit-scrollbar-thumb {
    background: var(--lightest-navy);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--slate);
}

/* Typing animation cursor */
.typing-cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background-color: var(--cyan);
    margin-left: 5px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Fade-in animation for sections */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Professional Experience Timeline */
.timeline-item .details {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out, opacity 0.5s ease-in-out, padding 0.5s ease-in-out;
    padding: 0 1.5rem;
}

.timeline-item.active .details {
    max-height: 500px; /* Adjust as needed */
    opacity: 1;
    padding: 1.5rem;
}

.timeline-tab.active {
    color: var(--cyan);
    border-color: var(--cyan);
    background-color: var(--light-navy);
}

/* Skills Grid */
.skill-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
}
.skill-item:hover {
    transform: translateY(-5px);
    color: var(--cyan);
    box-shadow: 0 0 15px 0 rgba(100, 255, 218, 0.3);
}

/* Social Icons */
.social-link svg {
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-link:hover svg {
    transform: translateY(-3px);
    color: var(--cyan);
}

/* Project Card */
.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -15px rgba(10, 25, 47, 0.7);
}


#mobile-menu {
    background-color: var(--light-navy);
}

#mobile-menu.open {
    transform: translateX(0);
}