/* ===== Reset & Variables ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0e17;
    --bg-alt: #0d1117;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-terminal: #0d1117;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --accent: #38bdf8;
    --accent-dark: #0ea5e9;
    --accent-glow: rgba(56, 189, 248, 0.15);
    --green: #34d399;
    --orange: #fb923c;
    --purple: #a78bfa;
    --red: #f87171;
    --yellow: #fbbf24;
    --border: #1e293b;
    --border-light: #334155;
    --radius: 12px;
    --radius-sm: 8px;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

/* ===== Utility ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navbar ===== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition);
}

nav.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-bracket {
    color: var(--accent);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 8px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

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

/* ===== Hero ===== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg-grid {
    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: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    max-width: 780px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--accent);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

#hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.hero-prefix {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--green);
    font-weight: 600;
}

.hero-title-wrapper h2 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent);
}

.cursor {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.3);
}

.btn-accent {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--accent);
}

.btn-accent:hover {
    background: rgba(56, 189, 248, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--border);
    color: var(--text);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
    margin-top: 32px;
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    font-size: 0.75rem;
    letter-spacing: 1px;
    animation: float 3s ease-in-out infinite;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-dim);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 3px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(10px); opacity: 0; }
}

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

/* ===== Sections ===== */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.section-num {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent);
    font-weight: 500;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 2px;
    background: var(--border);
    margin-left: 12px;
}

.subsection-title {
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
    margin: 56px 0 24px;
    color: var(--text-muted);
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    margin-bottom: 56px;
}

.about-text p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.about-text strong {
    color: var(--accent);
}

/* Terminal */
.about-terminal {
    background: var(--bg-terminal);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(30, 41, 59, 0.5);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
}

.terminal-line {
    color: var(--text-muted);
}

.prompt {
    color: var(--green);
    margin-right: 8px;
}

.cursor-inline {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

.terminal-output {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 8px 0;
    white-space: pre;
}

.json-key { color: var(--accent); }
.json-str { color: var(--green); }

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 16px;
    text-align: center;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

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

.stat:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(56, 189, 248, 0.1);
}

.stat-num {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ===== Skills ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.skill-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.skill-category:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(56, 189, 248, 0.08);
}

.skill-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.skill-icon i {
    color: var(--accent);
    font-size: 1.1rem;
}

.skill-category h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 14px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.skill-tags span {
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.12);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tags span:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.3);
}

/* ===== Experience / Timeline ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--border));
}

.timeline-item {
    position: relative;
    padding-left: 64px;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateX(-20px);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-dot {
    position: absolute;
    left: 16px;
    top: 8px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: rgba(56, 189, 248, 0.3);
}

.timeline-header {
    margin-bottom: 20px;
}

.timeline-role {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.timeline-company {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 2px;
}

.timeline-product {
    color: var(--text-muted);
    font-weight: 400;
}

.timeline-meta {
    display: flex;
    gap: 20px;
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--text-dim);
}

.timeline-meta i {
    margin-right: 4px;
}

.timeline-highlights {
    display: grid;
    gap: 12px;
}

.highlight-card {
    display: flex;
    gap: 14px;
    padding: 14px;
    border-radius: var(--radius-sm);
    background: rgba(56, 189, 248, 0.03);
    border: 1px solid transparent;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(10px);
}

.highlight-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.highlight-card:hover {
    border-color: rgba(56, 189, 248, 0.15);
    background: rgba(56, 189, 248, 0.06);
}

.highlight-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 8px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.highlight-icon i {
    color: var(--accent);
    font-size: 0.85rem;
}

.highlight-card strong {
    font-size: 0.9rem;
    display: block;
    margin-bottom: 4px;
}

.highlight-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== Projects ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    display: flex;
    flex-direction: column;
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(56, 189, 248, 0.08);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.project-icon {
    font-size: 1.3rem;
    color: var(--accent);
}

.project-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

/* Architecture flow */
.project-arch {
    background: var(--bg-terminal);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 16px;
    overflow-x: auto;
}

.arch-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    flex-wrap: nowrap;
    min-width: max-content;
}

.arch-node {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    background: var(--accent-glow);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--accent);
    white-space: nowrap;
}

.arch-arrow {
    color: var(--text-dim);
    font-size: 0.7rem;
}

.project-details {
    list-style: none;
    margin-bottom: 16px;
    flex: 1;
}

.project-details li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.project-details li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.project-tech span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* ===== Certifications ===== */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.cert-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.cert-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.cert-icon.aws {
    background: rgba(255, 153, 0, 0.1);
    color: #ff9900;
    border: 1px solid rgba(255, 153, 0, 0.2);
}

.cert-icon.azure {
    background: rgba(0, 120, 212, 0.1);
    color: #0078d4;
    border: 1px solid rgba(0, 120, 212, 0.2);
}

.cert-icon.python {
    background: rgba(55, 118, 171, 0.1);
    color: #3776ab;
    border: 1px solid rgba(55, 118, 171, 0.2);
}

.cert-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 0.82rem;
    color: var(--text-dim);
}

/* Education */
.education-card {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 500px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.education-card:hover {
    border-color: var(--accent);
}

.edu-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 12px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.edu-icon i {
    color: var(--accent);
    font-size: 1.2rem;
}

.education-card h3 {
    font-size: 1rem;
    font-weight: 600;
}

.education-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== Contact ===== */
#contact {
    text-align: center;
}

.contact-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
    max-width: 700px;
    margin: 0 auto 16px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.contact-card i {
    color: var(--accent);
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

/* ===== Footer ===== */
footer {
    text-align: center;
    padding: 40px 24px;
    border-top: 1px solid var(--border);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-dim);
    font-size: 1.1rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

footer p {
    color: var(--text-dim);
    font-size: 0.82rem;
}

footer .fa-heart {
    color: var(--red);
}

.footer-copy {
    margin-top: 8px;
    font-size: 0.75rem !important;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #hero h1 { font-size: 2.8rem; }
    .hero-title-wrapper h2, .hero-prefix, .cursor { font-size: 1.1rem; }
    .section-title { font-size: 1.6rem; }

    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 260px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 4px;
        border-left: 1px solid var(--border);
        transition: var(--transition);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        display: block;
        padding: 12px 16px;
        font-size: 1rem;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline::before { left: 16px; }
    .timeline-item { padding-left: 48px; }
    .timeline-dot { left: 8px; }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .cert-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    #hero h1 { font-size: 2.2rem; }
    .hero-links { flex-direction: column; align-items: center; }
    .hero-links .btn { width: 100%; justify-content: center; }
    .stats { grid-template-columns: 1fr 1fr; }
    .stat:last-child { grid-column: span 2; }

    .arch-flow {
        justify-content: flex-start;
    }
}