/* ===== DESIGN SYSTEM ===== */
:root {
    --bg: #060918;
    --bg-2: #0c1024;
    --surface: rgba(15, 22, 41, 0.7);
    --surface-solid: #0f1629;
    --glass: rgba(15, 22, 41, 0.5);
    --glass-border: rgba(99, 102, 241, 0.15);
    --primary: #6366f1;
    --primary-light: #818cf8;
    --accent: #22d3ee;
    --gold: #f59e0b;
    --text: #f1f5f9;
    --text-2: #94a3b8;
    --text-3: #475569;
    --border: rgba(255, 255, 255, 0.06);
    --font-display: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text-2);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection { background: var(--primary); color: white; }

/* ===== CANVAS ===== */
#particles {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* ===== SCROLL PROGRESS ===== */
#progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    width: 0%;
    z-index: 9999;
    transition: width 0.15s ease-out;
}

/* ===== NAV ===== */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all 0.4s var(--ease);
}

#navbar.scrolled {
    background: rgba(6, 9, 24, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -1px;
}

.logo-dot { color: var(--primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
}

.nav-link {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    transition: all 0.3s var(--ease);
    position: relative;
}

.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px;
    background: var(--primary);
    border-radius: 50%;
}

.nav-cta {
    background: var(--primary) !important;
    color: white !important;
    padding: 0.5rem 1.25rem !important;
}

.nav-cta:hover { background: var(--primary-light) !important; transform: translateY(-1px); }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 24px; height: 2px;
    background: var(--text);
    transition: all 0.3s var(--ease);
    display: block;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0; right: -100%;
    width: 280px; height: 100vh;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right 0.5s var(--ease);
}

.mobile-menu.open { right: 0; }

.mobile-menu ul {
    list-style: none;
    text-align: center;
}

.mobile-menu a {
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    display: block;
    padding: 1rem;
    transition: color 0.3s;
}

.mobile-menu a:hover { color: var(--primary); }

/* ===== HERO ===== */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 2rem;
}

.hero-content { position: relative; z-index: 1; }

.hero-greeting {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-light);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 8rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -3px;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--text-2);
    font-weight: 400;
    margin-bottom: 2.5rem;
    min-height: 2.2rem;
}

.cursor {
    color: var(--primary);
    animation: blink 1s infinite;
}

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

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 0.875rem 2rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 100px;
    transition: all 0.4s var(--ease);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    padding: 0.875rem 2rem;
    background: transparent;
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1.5px solid var(--glass-border);
    border-radius: 100px;
    transition: all 0.4s var(--ease);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    padding: 1.5rem 3rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    backdrop-filter: blur(20px);
}

.hero-stat { text-align: center; }

.stat-num {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
}

.stat-plus {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: 700;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-3);
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: float 3s ease-in-out infinite;
}

.mouse {
    width: 22px; height: 36px;
    border: 2px solid var(--text-3);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 3px; height: 8px;
    background: var(--primary);
    border-radius: 3px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-anim 2s infinite;
}

@keyframes scroll-anim {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ===== SECTIONS ===== */
.section {
    padding: 8rem 0;
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header { margin-bottom: 4rem; }

.section-tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-light);
    letter-spacing: 2px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -1px;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.about-lead {
    font-size: 1.2rem;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.about-text p { margin-bottom: 1rem; }
.about-text strong { color: var(--text); }

.about-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.detail-card {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1.25rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.4s var(--ease);
}

.detail-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.1);
}

.detail-icon { font-size: 1.5rem; }
.detail-card h4 { font-size: 0.85rem; color: var(--text); font-weight: 600; margin-bottom: 0.15rem; }
.detail-card p { font-size: 0.8rem; color: var(--text-2); }

/* ===== SKILLS ===== */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.skill-cat-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--text);
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-icon { font-size: 1.2rem; }

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 0.5rem;
    display: block;
}

.skill-bar {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 100px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 100px;
    transition: width 1.5s var(--ease);
}

/* ===== CERTIFICATIONS ===== */
.cert-showcase { display: flex; flex-direction: column; gap: 2.5rem; }

.cert-provider {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 1rem;
    padding-left: 1rem;
    border-left: 3px solid var(--primary);
}

.cert-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.cert-chip {
    padding: 0.6rem 1.25rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-2);
    transition: all 0.3s var(--ease);
    cursor: default;
    backdrop-filter: blur(10px);
}

.cert-chip:hover {
    border-color: var(--primary);
    color: var(--text);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.15);
}

/* ===== AWARDS TIMELINE ===== */
.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}

.timeline-dot {
    position: absolute;
    left: -2.875rem;
    top: 1.5rem;
    width: 14px;
    height: 14px;
    background: var(--bg);
    border: 3px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
}

.timeline-card {
    padding: 1.75rem 2rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.4s var(--ease);
}

.timeline-card:hover {
    border-color: var(--primary);
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.08);
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--primary-light);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.timeline-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--text);
    font-weight: 700;
    margin: 0.5rem 0 0.5rem;
}

.timeline-card p { font-size: 0.9rem; color: var(--text-2); }
.timeline-card strong { color: var(--text); }

/* ===== PROJECTS ===== */
.featured-projects {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 4rem;
}

.fp-card {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.5s var(--ease);
    position: relative;
    overflow: hidden;
}

.fp-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent 60%);
    pointer-events: none;
}

.fp-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.12);
}

.fp-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    color: rgba(99, 102, 241, 0.1);
    line-height: 1;
    min-width: 5rem;
    user-select: none;
}

.fp-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 0.75rem;
}

.fp-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.25rem;
}

.fp-tagline {
    font-size: 1rem;
    color: var(--primary-light);
    font-style: italic;
    margin-bottom: 1rem;
}

.fp-desc { font-size: 0.95rem; margin-bottom: 1.25rem; line-height: 1.8; }

.fp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.fp-tags span {
    padding: 0.3rem 0.75rem;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--primary-light);
    font-weight: 500;
}

.fp-link {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.fp-link:hover { color: var(--text); transform: translateX(4px); }

.sub-heading {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--text);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.project-mini {
    padding: 1.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all 0.4s var(--ease);
    backdrop-filter: blur(10px);
}

.project-mini:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.08);
}

.project-mini h4 {
    font-size: 1rem;
    color: var(--text);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-mini p { font-size: 0.85rem; }

/* ===== FOOTER ===== */
footer {
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 2.5rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s var(--ease);
    backdrop-filter: blur(10px);
}

.social-link svg { width: 18px; height: 18px; }

.social-link:hover {
    border-color: var(--primary);
    color: var(--text);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.15);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-3);
}

/* ===== ANIMATIONS ===== */
.anim-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s var(--ease);
}

.anim-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s !important; }
.delay-2 { transition-delay: 0.3s !important; }
.delay-3 { transition-delay: 0.45s !important; }
.delay-4 { transition-delay: 0.6s !important; }

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s var(--ease);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .skills-grid { grid-template-columns: 1fr; gap: 2rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .fp-card { flex-direction: column; }
    .fp-number { font-size: 2.5rem; min-width: auto; }
    .hero-stats { flex-direction: column; gap: 1rem; padding: 1.5rem 2rem; border-radius: 20px; }
    .hero-stat-divider { width: 60px; height: 1px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .section { padding: 5rem 0; }
    .hero-name { letter-spacing: -1px; }
    .about-details { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .hero-tagline { font-size: 1.1rem; }
    .fp-card { padding: 1.5rem; }
    .timeline { padding-left: 2rem; }
    .timeline-dot { left: -1.85rem; }
}