:root {
  --bg-color: #0F0F0F;
  --surface-color: rgba(26, 26, 26, 0.85);
  --text-primary: #FFFFFF;
  --text-secondary: #888888;
  --accent-primary: #00BFFF;
  --border-color: #262626;
  --title-font: "Syne", sans-serif;
  --body-font: "Inter", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--body-font);
  display: grid;
  grid-template-columns: 300px 1fr 70px;
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 8rem 0; position: relative; }
.section-title { font-family: var(--title-font); font-size: clamp(2rem, 5vw, 3rem); text-align: center; margin-bottom: 4rem; }
.button {
    background-color: var(--accent-primary); color: #000; padding: 0.75rem 1.5rem; border-radius: 50px; font-weight: 700; text-decoration: none; border: none; cursor: pointer;
}

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

/* Left Sidebar */
.left-sidebar {
    grid-column: 1 / 2;
    position: fixed;
    width: 280px;
    height: auto;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--surface-color);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    z-index: 5;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.profile { width: 100%; }
.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1.5rem auto;
    border: 4px solid var(--border-color);
}
.profile-image img { width: 100%; height: 100%; object-fit: cover; }
.profile-name { font-family: var(--title-font); font-size: 2rem; }
.profile-email { color: var(--text-secondary); margin-top: 0.5rem; font-size: 0.9rem; }
.sidebar-bottom { margin-top: auto; width: 100%; }
.social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}
.social-links a {
    color: var(--text-secondary); font-size: 1.25rem; width: 40px; height: 40px; display: grid; place-items: center;
    border-radius: 50%; border: 1px solid var(--border-color); transition: all 0.3s;
}
.social-links a:hover { 
    background-color: var(--accent-primary); 
    color: var(--bg-color); 
    border-color: var(--accent-primary);
    transform: scale(1.15);
}
.get-started-btn {
    background-color: var(--accent-primary); width: 100%; padding: 1rem; border-radius: 50px; color: var(--bg-color);
    text-decoration: none; font-weight: 700; transition: transform 0.3s;
    display: block;
}
.get-started-btn:hover { transform: scale(1.05); }

/* Main Content */
.main-content { grid-column: 2 / 3; position: relative; z-index: 1; }
.hero { height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.hero-title { 
    font-family: var(--title-font); 
    font-size: clamp(3rem, 10vw, 7rem); 
    line-height: 1.1;
}
.hero-subtitle { font-size: clamp(1rem, 2.5vw, 1.25rem); color: var(--text-secondary); margin-top: 1.5rem; margin-bottom: 1.5rem; min-height: 50px; }
.hero-subtitle .char { display: inline-block; opacity: 0; transform: translateY(20px); }
.hero-intro { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 2.5rem auto; }
.resume-button:focus { outline: none; box-shadow: none; }

.hero-stats { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    gap: 1.5rem; 
    flex-wrap: wrap; 
    margin-top: 4rem;
}
.stat-item { 
    text-align: center;
    padding: 1rem 1.5rem;
    background-color: var(--surface-color);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    min-width: 200px;
}
.stat-number { 
    font-family: var(--title-font); 
    font-size: clamp(2rem, 5vw, 2.5rem); 
    color: var(--text-primary); 
    display: block;
}
.stat-label { 
    color: var(--text-secondary); 
    font-size: 0.9rem; 
    margin-top: 0.5rem;
}

.about-container { max-width: 800px; text-align: center; }
.about-container p { color: var(--text-secondary); font-size: 1.1rem; line-height: 1.8; }
.about-container p:not(:last-child) { margin-bottom: 1rem; }

/* --- Universal Card Hover Effect --- */
.stat-item, .timeline-content, .research-item, .project-card, .cert-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.stat-item:hover, .timeline-content:hover, .research-item:hover, .project-card:hover, .cert-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}
/* --- End Universal Card Hover Effect --- */

.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::after { content: ''; position: absolute; width: 2px; background-color: var(--border-color); top: 0; bottom: 0; left: 1rem; }
.timeline-item { padding: 1rem 0 1rem 3rem; position: relative; }
.timeline-dot { position: absolute; width: 16px; height: 16px; background-color: var(--accent-primary); border-radius: 50%; top: 24px; left: 0; transform: translateX(-50%); border: 3px solid var(--bg-color); }
.timeline-content { background-color: var(--surface-color); padding: 1.5rem; border-radius: 8px; border: 1px solid var(--border-color); }
.timeline-content h3 { font-family: var(--title-font); font-size: 1.25rem; }
.timeline-details { font-size: 0.9rem; color: var(--text-secondary); margin-top: 0.5rem; }
.timeline-content p:not(.timeline-details) { font-size: 1rem; margin-top: 1rem; }
.timeline-achievements { list-style: none; padding-left: 0; margin-top: 1rem; text-align: left; }
.timeline-achievements li { color: var(--text-secondary); font-size: 0.9rem; position: relative; padding-left: 1.5rem; margin-bottom: 0.5rem; }
.timeline-achievements li::before {
    content: '\EA7A'; font-family: 'remixicon' !important; position: absolute; left: 0; top: 0;
    color: var(--accent-primary); font-weight: bold;
}
.timeline-achievements li strong { color: var(--text-primary); font-weight: 500; }
.timeline-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.timeline-header h3 { margin-bottom: 0; }
.cert-link { font-size: 0.8rem; font-weight: 500; padding: 0.2rem 0.6rem; border: 1px solid var(--border-color); border-radius: 50px; }
.cert-link:hover { background-color: var(--border-color); }

.research-list { max-width: 800px; margin: 0 auto; list-style: none; }
.research-item { display: flex; flex-direction: column; align-items: flex-start; padding: 1.5rem; background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 1rem; }
.research-item h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.research-details { color: var(--text-secondary); font-size: 1rem; margin-bottom: 1rem; text-align: left; }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 2rem; }
.project-card { background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: 10px; overflow: hidden; padding: 2rem; }
.project-content h3 { font-family: var(--title-font); font-size: 1.5rem; margin-bottom: 0.5rem; }
.project-content p { color: var(--text-secondary); margin-bottom: 1rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.project-tags span { background-color: var(--border-color); padding: 0.25rem 0.75rem; border-radius: 50px; font-size: 0.8rem; }
.project-links { display: flex; gap: 1rem; }
.link-button { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--text-secondary); font-weight: 500; }
.link-button:hover { color: var(--text-primary); }

.certs-list { max-width: 800px; margin: 0 auto; list-style: none; }
.cert-item { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem; background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 1rem; }
.cert-item h3 { font-size: 1.25rem; }
.cert-item p { color: var(--text-secondary); }
@media (max-width: 500px) { .cert-item { flex-direction: column; align-items: flex-start; gap: 1rem; } }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.skill-category { grid-column: span 1; }
.skills-grid > div:nth-child(2) { grid-row: 2; grid-column: 1 / 2; }
.skills-grid > div:nth-child(3) { grid-row: 1; grid-column: 2 / 3; }
.skills-grid > div:nth-child(4) { grid-row: 2; grid-column: 2 / 3; }
.skill-category h3 { font-size: 1.2rem; color: var(--accent-primary); margin-bottom: 1rem; }
.skill-category p { color: var(--text-secondary); line-height: 1.8; }

.learning-container { max-width: 800px; text-align: center; }
.learning-intro { color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 3rem; }
.learning-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.learning-item { background-color: var(--surface-color); border: 1px solid var(--border-color); padding: 0.75rem 1.5rem; border-radius: 50px; font-weight: 500; }

.contact-container { max-width: 700px; margin: 0 auto; text-align: center; }
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 3rem; }
.contact-form input, .contact-form textarea {
    background-color: var(--surface-color); border: 1px solid var(--border-color); color: var(--text-primary); padding: 1rem; border-radius: 5px; font-family: var(--body-font); font-size: 1rem;
}
.contact-form textarea { min-height: 150px; }
.contact-form .button { align-self: center; }
.contact-form .button:focus { outline: none; box-shadow: none; }

.footer { text-align: center; padding: 4rem 2rem 2rem; }

/* Right Icon Navigation */
.right-nav {
    grid-column: 3 / 4;
    position: fixed;
    width: 60px;
    height: auto;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--surface-color);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    z-index: 5;
    padding: 1rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.nav-icon {
    color: var(--text-secondary); font-size: 1.3rem; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%;
    transition: all 0.3s; text-decoration: none;
}
.nav-icon.active { background-color: var(--accent-primary); color: var(--bg-color); }
.nav-icon:hover { background-color: var(--accent-primary); color: var(--bg-color); transform: scale(1.15); }

@media (max-width: 1024px) {
    body { grid-template-columns: 1fr; }
    .left-sidebar, .right-nav { display: none !important; }
    .main-content { width: 100%; margin-left: 0; grid-column: 1 / -1; }
}

@media (max-width: 920px) {
    .hero-stats {
        gap: 1rem;
    }
    .stat-item {
        min-width: 180px;
    }
}

@media (max-width: 768px) {

    .section {
        padding: 4rem 0;
    }

    .section-title {
        margin-bottom: 2.5rem;
    }

    .hero-stats {
        margin-top: 2.5rem;
        gap: 1rem;
    }

    .hero-intro {
        margin-bottom: 1.5rem;
    }

    .timeline-content {
        padding: 1rem;
    }
    .project-card {
        padding: 1.5rem;
    }
}