/* ======== GLOBAL STYLES & THEME V8.0 ======== */
:root {
    --background-color: #0a0f2c;
    --surface-color: #10182c;
    --primary-accent: #00f5c3;
    --secondary-accent: #c869ff;
    --text-color: #e6f1ff;
    --text-muted-color: #a8b2d1;
    --border-color: #232a55;
    --font-heading: 'Satoshi', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    cursor: none;
}
body.modal-open {
    overflow: hidden;
}
body, a {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#background-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
#scroll-progress-bar { position: fixed; top: 0; left: 0; height: 4px; background: var(--primary-accent); width: 0%; z-index: 9999; transform: translateZ(0); }
.cursor, .cursor-follower { position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9998; border-radius: 50%; }
.cursor { width: 8px; height: 8px; background-color: var(--primary-accent); }
.cursor-follower { width: 30px; height: 30px; background-color: rgba(0, 245, 195, 0.2); transition: transform 0.1s ease-out, background-color 0.2s, width 0.2s, height 0.2s; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--text-color); line-height: 1.2; font-weight: 700; }
.section-title { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 4rem; text-align: center; }
.subtitle { font-size: clamp(1rem, 2.5vw, 1.25rem); color: var(--text-muted-color); max-width: 600px; font-weight: 400; }
section { padding: 8rem 0; position: relative; }

/* ======== NAVIGATION ======== */
.navbar { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; padding: 1.5rem 0; transition: all 0.3s ease; }
.navbar.scrolled { background-color: rgba(10, 15, 44, 0.7); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 1.8rem; font-weight: 700; color: var(--text-color); text-decoration: none; }
.nav-menu { list-style: none; display: flex; gap: 2.5rem; }
.nav-menu a { color: var(--text-muted-color); text-decoration: none; font-weight: 500; font-size: 1rem; transition: color 0.3s ease; }
.nav-menu a:hover { color: var(--primary-accent); }

/* ======== HOME SECTION (REDESIGNED) ======== */
.home-section { min-height: 100vh; display: flex; align-items: center; }
.home-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 4rem; }
#headline-canvas-container { width: 100%; height: auto; }
.home-intro-text { text-align: right; }
.home-intro-text .subtitle { margin-left: auto; margin-bottom: 2rem; opacity: 0; }
.home-buttons { opacity: 0; }
.btn { display: inline-block; padding: 1rem 2.5rem; border-radius: 50px; text-decoration: none; font-weight: 500; font-family: var(--font-heading); transition: all 0.3s ease; border: 1px solid var(--primary-accent); cursor: none; }
.btn-primary { background: var(--primary-accent); color: var(--background-color); }
.btn-primary:hover { background: transparent; color: var(--primary-accent); }

/* ======== ABOUT SECTION (REDESIGNED) ======== */
#about { background-color: var(--surface-color); }
.timeline-container { position: relative; max-width: 700px; margin: 4rem auto 0; }
.timeline-line { position: absolute; left: 24px; top: 0; bottom: 0; width: 2px; background-color: var(--border-color); }
.timeline-item { position: relative; padding: 1rem 0 3rem 60px; opacity: 0; transform: translateY(30px); }
.timeline-item.is-visible { opacity: 1; transform: translateY(0); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.timeline-icon { position: absolute; left: 0; top: 1rem; width: 50px; height: 50px; background-color: var(--surface-color); border: 2px solid var(--border-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--primary-accent); transition: all 0.3s ease; }
.timeline-item.is-visible .timeline-icon { transform: scale(1); border-color: var(--primary-accent); }
.timeline-content { transition: all 0.3s ease; border-radius: 8px; padding: 1rem; }
.timeline-item:hover .timeline-content { background-color: var(--surface-color); transform: translateX(10px); }
.timeline-item:hover .timeline-icon { transform: scale(1.1); box-shadow: 0 0 15px var(--primary-accent); }
.timeline-content h3 { font-size: 1.5rem; margin-bottom: 0.5rem; color: var(--primary-accent); }
.timeline-content p { color: var(--text-muted-color); }

/* ======== EXPERTISE SECTION ======== */
.expertise-interactive-map { position: relative; height: 500px; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; align-items: center; justify-items: center; }
.competency-lines { position: absolute; top: 0; left: 0; pointer-events: none; }
.competency-lines line { stroke-width: 1; opacity: 0.1; transition: opacity 0.3s ease; }
.expertise-interactive-map:hover .competency-lines line { opacity: 0.3; }
.competency-node { position: relative; display: flex; align-items: center; justify-content: center; width: 150px; height: 150px; border-radius: 50%; border: 1px solid var(--border-color); cursor: pointer; transition: all 0.3s ease; }
.competency-node:hover { background-color: var(--surface-color); transform: scale(1.1); }
.competency-node span { font-family: var(--font-heading); font-weight: 500; text-align: center; }
.node-pulse { position: absolute; width: 100%; height: 100%; border-radius: 50%; background-color: var(--primary-accent); opacity: 0; animation: pulse 2s infinite; }
@keyframes pulse { 0% { transform: scale(0.9); opacity: 0.5; } 70% { transform: scale(1.3); opacity: 0; } 100% { transform: scale(1.3); opacity: 0; } }
.competency-details-panel { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 300px; text-align: center; pointer-events: none; }
.competency-details-panel h3 { color: var(--primary-accent); font-size: 1.5rem; margin-bottom: 1rem; }
.competency-details-panel ul { list-style: none; }
.competency-details-panel li { color: var(--text-muted-color); opacity: 0; transform: translateY(10px); }

/* ======== PROJECTS SECTION ======== */
#projects { background-color: var(--surface-color); }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; perspective: 1500px; }
.project-card { display: block; background-color: var(--background-color); border-radius: 12px; padding: 2rem; text-decoration: none; color: var(--text-color); border: 1px solid var(--border-color); transition: transform 0.4s ease-out, box-shadow 0.4s ease-out; will-change: transform; }
.project-card h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.project-card p { color: var(--text-muted-color); margin-bottom: 2rem; }
.project-tags { display: flex; gap: 0.5rem; margin-bottom: 2rem; }
.project-tags span { background-color: var(--border-color); color: var(--primary-accent); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; }
.project-link { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-heading); }
.project-link i { transition: transform 0.3s ease; }
.project-card:hover .project-link i { transform: translateX(5px); }

/* ======== VISION SECTION ======== */
#vision { background-color: var(--background-color); }
.vision-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.vision-orb-container { position: relative; width: 100%; padding-top: 100%; }
.vision-lines { position: absolute; top: 0; left: 0; pointer-events: none; }
.vision-lines line { stroke: var(--border-color); stroke-width: 1; }
.vision-orb { position: absolute; top: 50%; left: 50%; width: 100px; height: 100px; background: radial-gradient(circle, var(--primary-accent) 0%, var(--surface-color) 70%); border-radius: 50%; transform: translate(-50%, -50%); box-shadow: 0 0 50px var(--primary-accent); animation: orb-pulse 4s infinite ease-in-out; }
@keyframes orb-pulse { 50% { transform: translate(-50%, -50%) scale(1.1); } }
.vision-pillar { position: absolute; transform: translate(-50%, -50%); transition: transform 0.3s ease; }
.vision-pillar span { display: block; background: var(--surface-color); padding: 0.5rem 1rem; border-radius: 20px; border: 1px solid var(--border-color); white-space: nowrap; }
.vision-pillar:hover { transform: translate(-50%, -50%) scale(1.1); }
#pillar-1 { top: 26.25%; left: 73.75%; }
#pillar-2 { top: 26.25%; left: 26.25%; }
#pillar-3 { top: 73.75%; left: 26.25%; }
#pillar-4 { top: 73.75%; left: 73.75%; }
.vision-text p { font-size: 1.2rem; color: var(--text-muted-color); max-width: 45ch; }

/* ======== FOOTER ======== */
.footer { padding: 6rem 2rem 2rem; background-color: var(--surface-color); text-align: center; }
.footer-cta { margin-bottom: 4rem; }
.footer-cta .section-title { margin-bottom: 1.5rem; }
.footer-cta .subtitle { max-width: 600px; margin: 0 auto 2.5rem auto; }
.footer-bottom { padding-top: 2rem; border-top: 1px solid var(--border-color); }
.footer-bottom .social-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 1.5rem; }
.footer-bottom .social-links a { font-size: 1.5rem; color: var(--text-muted-color); transition: color 0.3s ease; }
.footer-bottom .social-links a:hover { color: var(--primary-accent); }
.footer-bottom p { color: var(--text-muted-color); font-size: 0.9rem; }

/* ======== MODAL STYLES ======== */
#modal-container { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 2rem; transition: opacity 0.3s ease; }
#modal-container.hidden { opacity: 0; pointer-events: none; }
.modal-backdrop { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(10, 15, 44, 0.8); backdrop-filter: blur(5px); }
.modal-content { position: relative; background: var(--surface-color); border-radius: 16px; width: 100%; max-width: 800px; max-height: 90vh; overflow-y: auto; border: 1px solid var(--border-color); transform: scale(0.95); opacity: 0; transition: transform 0.3s ease, opacity 0.3s ease; display: none; }
.modal-content.active { display: block; transform: scale(1); opacity: 1; }
.modal-close-btn { position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: var(--text-muted-color); font-size: 1.5rem; cursor: pointer; transition: color 0.3s; z-index: 10; }
.modal-close-btn:hover { color: var(--primary-accent); }
.modal-img { width: 100%; height: 250px; object-fit: cover; border-top-left-radius: 16px; border-top-right-radius: 16px; }
.modal-content h2 { padding: 2rem 2rem 0; font-size: 2rem; }
.modal-body { padding: 2rem; display: grid; gap: 1.5rem; }
.modal-body h3 { color: var(--primary-accent); font-size: 1.2rem; margin-bottom: 0.5rem; }
.modal-body strong { color: var(--primary-accent); font-weight: 700; }

/* ======== RESPONSIVE DESIGN ======== */
@media (max-width: 992px) {
    .home-grid { grid-template-columns: 1fr; text-align: center; }
    .home-intro-text { text-align: center; }
    .home-intro-text .subtitle { margin: 0 auto 2rem auto; }
    #headline-canvas-container { margin-bottom: 1rem; }
    .projects-grid { grid-template-columns: 1fr 1fr; }

    .expertise-interactive-map {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        height: auto;
    }
    .competency-node {
        width: 100%;
        max-width: 300px;
        height: auto;
        padding: 1rem;
    }
    .competency-lines {
        display: none !important;
    }
    .competency-details-panel {
        position: static;
        transform: none;
        width: 100%;
        margin-top: 1rem;
        text-align: center;
        pointer-events: auto;
    }

    /* ** FINAL BUG FIX: Vision Section Mobile Layout ** */
    .vision-grid { 
        grid-template-columns: 1fr; 
        gap: 3rem;
    }
    .vision-orb-container {
        display: block;
        position: relative;
        padding-top: 0;
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }
    .vision-orb-container::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 2px;
        background-color: var(--border-color);
        transform: translateX(-50%);
    }
    .vision-lines, .vision-orb {
        display: none;
    }
    .vision-pillar {
        position: relative;
        left: 50%;
        transform: translateX(-50%);
        width: 80%;
        margin-bottom: 4rem; /* Increased spacing */
        text-align: center;
        opacity: 0;
        animation: fadeInPillar 0.5s ease-out forwards;
        transition: transform 0.2s ease-out; /* Added for tap effect */
    }
    .vision-pillar::before {
        content: '';
        position: absolute;
        left: -40px;
        top: 50%;
        width: 15px;
        height: 15px;
        background-color: var(--primary-accent);
        border-radius: 50%;
        transform: translateY(-50%);
    }
    .vision-pillar:nth-child(even)::before {
        left: auto;
        right: -40px;
    }
    #pillar-1 { animation-delay: 0.1s; }
    #pillar-2 { animation-delay: 0.2s; }
    #pillar-3 { animation-delay: 0.3s; }
    #pillar-4 { animation-delay: 0.4s; }

    @keyframes fadeInPillar {
        from { opacity: 0; transform: translateX(-50%) translateY(20px); }
        to { opacity: 1; transform: translateX(-50%) translateY(0); }
    }
    .vision-pillar:active {
        transform: translateX(-50%) scale(1.05); /* Subtle pop effect on tap */
    }
    .vision-text {
        text-align: center;
    }
    .vision-text p {
        margin: 0 auto;
    }
    /* ** END OF FIX ** */
}

@media (max-width: 768px) {
    body { cursor: auto; }
    .cursor, .cursor-follower { display: none; }
    .nav-menu { display: none; }
    .projects-grid { grid-template-columns: 1fr; }
    .about-narrative-grid { grid-template-columns: 1fr; }
}

/* Apply hover effects only on devices that can hover */
@media (hover: hover) {
    .vision-pillar:hover {
        transform: translateX(-50%) scale(1.1);
    }
}