/* ===== CSS VARIABLES ===== */
:root {
    --bg: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c2a;
    --text: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --accent-dark: #0891b2;
    --accent-glow: rgba(6, 182, 212, 0.15);
    --accent-glow-strong: rgba(6, 182, 212, 0.3);
    --border: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(6, 182, 212, 0.2);
    --gradient: linear-gradient(135deg, #06b6d4, #8b5cf6);
    --gradient-text: linear-gradient(135deg, #22d3ee, #a78bfa);
    --shadow: 0 4px 60px rgba(0, 0, 0, 0.5);
    --radius: 12px;
    --radius-lg: 20px;
    --nav-height: 72px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== CURSOR GLOW ===== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
body:hover .cursor-glow { opacity: 1; }

/* ===== CONTAINER ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: all 0.3s ease;
    backdrop-filter: blur(0px);
}
.nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.nav-logo .accent { color: var(--accent); }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
    border-bottom: 1px solid var(--border);
}
.mobile-menu a {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 0;
}
.mobile-menu.open { display: flex; }

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 40px) 0 60px;
    overflow: hidden;
}
#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-light);
    margin-bottom: 24px;
}
.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.hero-title .line { display: block; }
.hero-title .accent { color: var(--accent); }
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 20px;
    min-height: 1.6em;
}
.cursor-blink { animation: blink 1s step-end infinite; }
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}
.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.7;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 30px rgba(6, 182, 212, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(6, 182, 212, 0.4);
}
.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}
.btn-large { padding: 16px 36px; font-size: 1.05rem; }

/* Hero Image - shifted right */
.hero-image {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px 40px 50px 20px;
}
.photo-container {
    position: relative;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}
.photo-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient);
    border-radius: 50%;
    opacity: 0.15;
    filter: blur(40px);
    animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.25; transform: scale(1.05); }
}
.photo-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    border-radius: 50%;
    position: relative;
    z-index: 2;
    filter: grayscale(100%) contrast(1.1);
    transition: filter 0.5s;
}
.photo-container:hover img { filter: grayscale(0%) contrast(1); }
.photo-border {
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: var(--gradient);
    z-index: 1;
    opacity: 0.6;
}

/* Hero Stats Row */
.hero-stats-row {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}
.stat-card {
    background: rgba(22, 22, 31, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 22px;
    text-align: center;
    transition: border-color 0.3s, transform 0.3s;
}
.stat-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
}
.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    display: block;
}
.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 1;
}
.scroll-indicator span {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}
.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}
.wheel {
    width: 3px;
    height: 8px;
    background: var(--accent);
    border-radius: 3px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s infinite;
}
@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

/* ===== PIPELINE DIVIDER ===== */
.pipeline-divider {
    overflow: hidden;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}
.pipeline-track {
    display: flex;
    align-items: center;
    gap: 24px;
    animation: scrollPipeline 25s linear infinite;
    white-space: nowrap;
    width: max-content;
}
@keyframes scrollPipeline {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.pipeline-item {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    padding: 8px 20px;
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    background: var(--accent-glow);
    flex-shrink: 0;
}
.pipeline-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.5;
}

/* ===== SECTIONS ===== */
.section {
    padding: 120px 0;
    position: relative;
}
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.section-number {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}
.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    max-width: 600px;
    line-height: 1.7;
}

/* ===== SOLUTIONS ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    position: relative;
    transition: all 0.4s ease;
    overflow: hidden;
}
.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}
.solution-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--accent-glow);
}
.solution-card:hover::before { opacity: 1; }
.solution-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    position: absolute;
    top: 16px;
    right: 24px;
    line-height: 1;
}
.solution-icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 20px;
}
.solution-icon svg { width: 100%; height: 100%; }
.solution-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.solution-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.solution-tags span {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 4px 12px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border-radius: 100px;
    border: 1px solid rgba(6, 182, 212, 0.15);
}

/* ===== TECH CLOUD ===== */
.tech-cloud {
    text-align: center;
}
.tech-hex-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}
.tech-hex {
    padding: 14px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.4s ease;
    cursor: default;
}
.tech-hex:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--accent-light);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.15);
}
.tech-hex.dimmed {
    opacity: 0.15;
    transform: scale(0.95);
}
.tech-hex.highlighted {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--accent-light);
    box-shadow: 0 0 20px var(--accent-glow);
}
.tech-legend {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}
.tech-filter {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font);
}
.tech-filter:hover, .tech-filter.active {
    border-color: var(--accent);
    color: var(--accent-light);
    background: var(--accent-glow);
}

/* ===== PROJECTS ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.project-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-accent);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--accent-glow);
}
.project-card:hover .project-glow { opacity: 1; }
.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}
.project-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    background: var(--accent-glow);
    border-radius: 100px;
    border: 1px solid rgba(6, 182, 212, 0.15);
}
.project-links a {
    color: var(--text-muted);
    transition: color 0.3s;
    display: inline-block;
}
.project-links a:hover { color: var(--accent); }
.project-links svg { width: 22px; height: 22px; }
.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    transition: color 0.3s;
}
.project-card:hover .project-title { color: var(--accent-light); }
.project-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}
.project-impact {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.project-impact span {
    font-size: 0.8rem;
    font-weight: 600;
    color: #a78bfa;
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 100px;
}
.project-tech { display: flex; flex-wrap: wrap; gap: 8px; }
.project-tech span {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 4px 10px;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 6px;
}
.more-projects { text-align: center; margin-top: 48px; }

/* ===== COMPACT EXPERIENCE ===== */
.exp-compact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}
.exp-compact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s;
    border-left: 3px solid var(--accent);
}
.exp-compact-card:hover {
    border-color: var(--border-accent);
    border-left-color: var(--accent-light);
    background: var(--bg-card-hover);
    transform: translateX(4px);
}
.exp-compact-role {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
}
.exp-compact-company {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 8px;
}
.exp-compact-what {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}
.exp-compact-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.exp-compact-tags span {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    padding: 3px 10px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border-radius: 100px;
    border: 1px solid rgba(6, 182, 212, 0.12);
}

/* ===== EDUCATION ROW ===== */
.edu-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.edu-chip {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 300px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.3s;
    color: var(--accent);
}
.edu-chip:hover { border-color: var(--border-accent); }
.edu-chip div { display: flex; flex-direction: column; }
.edu-chip strong {
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 600;
}
.edu-chip span {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== CONTACT ===== */
.contact-content { text-align: center; }
.contact-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}
.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}
.contact-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all 0.3s;
}
.contact-card:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}
.contact-card svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ===== FOOTER ===== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== ANIMATIONS ===== */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-cta { justify-content: center; }
    .hero-image { order: -1; justify-content: center; padding-right: 0; }
    .photo-container { width: 260px; height: 260px; }
    .hero-stats-row { gap: 12px; }
    .stat-card { padding: 10px 16px; }
    .solutions-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .hero-title { font-size: 2.2rem; }
    .section { padding: 80px 0; }
    .projects-grid { grid-template-columns: 1fr; }
    .exp-compact-grid { grid-template-columns: 1fr; }
    .edu-row { flex-direction: column; }
    .edu-chip { min-width: unset; }
    .contact-links { flex-direction: column; align-items: center; }
    .hero-badge { font-size: 0.7rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .photo-container { width: 200px; height: 200px; }
    .project-card { padding: 24px; }
    .solution-card { padding: 24px; }
}