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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

:root {
  --bg: #0a0a0b;
  --bg-elevated: #111113;
  --bg-card: #15151a;
  --bg-card-hover: #1c1c22;
  --border: #26262d;
  --border-bright: #3a3a44;
  --text: #f0f0f3;
  --text-dim: #a5a5b0;
  --text-muted: #6b6b76;
  --accent: #ffb347;
  --accent-bright: #ffc97a;
  --accent-soft: rgba(255, 179, 71, 0.12);
  --accent-glow: rgba(255, 179, 71, 0.35);
  --gradient: linear-gradient(135deg, #ffb347 0%, #ff7e5f 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --container: 1140px;
  --section-y: clamp(64px, 8vw, 120px);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

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

/* ============================================================
   Background decoration
   ============================================================ */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 70%);
}
.bg-glow {
  position: fixed; top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px; z-index: -1; pointer-events: none;
  background: radial-gradient(ellipse, var(--accent-glow), transparent 60%);
  filter: blur(80px); opacity: 0.55;
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 11, 0.7);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 32px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 16px;
}
.brand-mark {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: var(--gradient); color: #1a1a1a;
  border-radius: 8px; font-weight: 800; font-size: 13px;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex; gap: 28px; margin-left: auto; margin-right: auto;
}
.nav-links a {
  color: var(--text-dim); font-size: 14px; font-weight: 500;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 9px 18px;
  background: var(--accent); color: #1a1a1a;
  border-radius: 999px;
  font-size: 14px; font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--accent-glow); }
.nav-toggle {
  display: none;
  flex-direction: column; gap: 4px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
}
.hero-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 179, 71, 0.25);
  border-radius: 999px;
  font-size: 13px; font-weight: 500; color: var(--accent-bright);
  margin-bottom: 24px;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 12px rgba(74, 222, 128, 0.6);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.15); }
}
.hero-name {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800; letter-spacing: -0.03em;
  line-height: 1.05; margin-bottom: 12px;
}
.hero-name .accent {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-role {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim); font-weight: 500;
  margin-bottom: 20px;
}
.hero-tagline {
  font-size: clamp(15px, 1.2vw, 17px);
  color: var(--text-dim); line-height: 1.7;
  max-width: 580px; margin-bottom: 28px;
}
.hero-tagline strong { color: var(--text); font-weight: 600; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 32px;
}
.meta-item {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--text-muted);
}
.meta-item svg { color: var(--accent); }
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 12px;
}

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600; font-size: 14.5px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary {
  background: var(--accent); color: #1a1a1a;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px var(--accent-glow); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border-bright);
}
.btn-ghost:hover { background: var(--bg-card); border-color: var(--accent); }

.hero-avatar {
  position: relative; justify-self: center;
  width: 280px; height: 280px;
}
.avatar-ring {
  width: 100%; height: 100%; border-radius: 50%;
  padding: 4px; background: var(--gradient);
  box-shadow: 0 20px 60px var(--accent-glow);
}
.avatar-ring img {
  width: 100%; height: 100%; border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg);
}
.avatar-card {
  position: absolute;
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-card); border: 1px solid var(--border-bright);
  padding: 10px 16px; border-radius: 999px;
  box-shadow: var(--shadow-md);
  font-size: 13px; font-weight: 600;
  animation: float 4s ease-in-out infinite;
}
.avatar-card-1 { top: 10%; left: -40px; }
.avatar-card-2 { bottom: 14%; right: -40px; animation-delay: 1.5s; }
.card-emoji { font-size: 16px; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ============================================================
   Impact / Stats
   ============================================================ */
.impact {
  padding: 32px 0 clamp(40px, 6vw, 72px);
}
.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.stat { text-align: center; padding: 8px; }
.stat-number {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; letter-spacing: -0.03em;
  font-family: var(--font-sans);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 13px; color: var(--text-dim);
  font-weight: 500;
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: var(--section-y) 0;
  position: relative;
}
.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015) 50%, transparent);
}
.section-head {
  max-width: 720px; margin-bottom: 48px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.15; margin-bottom: 16px;
}
.section-sub {
  font-size: 16px; color: var(--text-dim); line-height: 1.7;
  max-width: 620px;
}

/* ============================================================
   App grid
   ============================================================ */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.app-card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.app-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
}
.app-card-featured {
  border-color: rgba(255, 179, 71, 0.4);
  background: linear-gradient(180deg, rgba(255, 179, 71, 0.06), var(--bg-card));
}
.app-card-featured:hover { border-color: var(--accent); }
.app-badge {
  position: absolute; top: -10px; right: 20px;
  padding: 4px 10px;
  background: var(--accent); color: #1a1a1a;
  font-size: 11px; font-weight: 700; letter-spacing: 0.04em;
  border-radius: 999px; text-transform: uppercase;
}
.app-card-head {
  display: flex; gap: 14px; margin-bottom: 16px;
}
.app-icon {
  width: 60px; height: 60px; border-radius: 14px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.app-meta { flex: 1; min-width: 0; }
.app-name {
  font-size: 17px; font-weight: 700; line-height: 1.2;
  margin-bottom: 2px;
}
.app-sub {
  font-size: 13px; color: var(--text-dim);
  margin-bottom: 6px;
}
.app-rating {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px;
}
.stars {
  color: var(--accent);
  letter-spacing: 1px;
}
.rating-count {
  color: var(--text-muted);
}
.app-desc {
  font-size: 14px; color: var(--text-dim);
  line-height: 1.6; flex: 1;
  margin-bottom: 16px;
}
.app-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 16px;
}
.tag {
  padding: 4px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11.5px; color: var(--text-dim);
  font-family: var(--font-mono); font-weight: 500;
}
.app-arrow {
  font-size: 13px; font-weight: 600; color: var(--accent);
  transition: transform 0.2s ease;
  margin-top: auto;
}
.app-card:hover .app-arrow {
  transform: translateX(4px);
}

/* ============================================================
   Timeline / Experience
   ============================================================ */
.timeline {
  display: flex; flex-direction: column; gap: 24px;
}
.role {
  display: grid; grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s ease;
}
.role:hover { border-color: var(--border-bright); }
.role-time { font-family: var(--font-mono); }
.role-date {
  font-size: 13px; font-weight: 600; color: var(--accent);
  letter-spacing: 0.02em;
}
.role-duration {
  font-size: 12px; color: var(--text-muted);
  margin-top: 4px;
}
.role-header { margin-bottom: 14px; }
.role-title {
  font-size: 20px; font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.role-company {
  font-size: 15px; color: var(--text-dim); font-weight: 500;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.role-loc {
  font-size: 12.5px; color: var(--text-muted);
  padding-left: 12px; border-left: 1px solid var(--border);
}
.role-summary {
  font-size: 14.5px; color: var(--text-dim); line-height: 1.7;
  margin-bottom: 14px;
}
.role-bullets {
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 18px;
}
.role-bullets li {
  position: relative; padding-left: 22px;
  font-size: 14px; color: var(--text-dim); line-height: 1.65;
}
.role-bullets li::before {
  content: ''; position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--accent); border-radius: 50%;
}
.role-bullets strong { color: var(--text); font-weight: 600; }
.role-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}

/* ============================================================
   Projects (open source)
   ============================================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.project-card {
  display: flex; flex-direction: column;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.project-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}
.project-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
}
.project-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--accent-soft); border: 1px solid rgba(255, 179, 71, 0.2);
  border-radius: 12px; font-size: 22px;
}
.project-stars {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12.5px; color: var(--text-dim);
  font-family: var(--font-mono);
}
.project-stars svg { color: var(--accent); }
.project-name {
  font-size: 18px; font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.project-tagline {
  font-size: 13px; color: var(--accent);
  font-weight: 500; margin-bottom: 12px;
}
.project-desc {
  font-size: 14px; color: var(--text-dim); line-height: 1.65;
  flex: 1; margin-bottom: 16px;
}
.project-desc strong { color: var(--text); font-weight: 600; }
.project-desc code {
  font-family: var(--font-mono); font-size: 12.5px;
  padding: 1px 6px; background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px; color: var(--text);
}
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.project-cta {
  text-align: center; margin-top: 32px;
  color: var(--text-dim); font-size: 14px;
}
.project-cta a {
  color: var(--accent); font-weight: 600;
  margin-left: 6px;
  font-family: var(--font-mono);
}
.project-cta a:hover { color: var(--accent-bright); }

/* ============================================================
   Skills
   ============================================================ */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.skill-block {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s ease;
}
.skill-block:hover { border-color: var(--border-bright); }
.skill-block-head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.skill-icon { font-size: 22px; }
.skill-block h3 {
  font-size: 15px; font-weight: 700; letter-spacing: -0.01em;
}
.skill-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.skill {
  padding: 5px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 12.5px; color: var(--text);
  font-family: var(--font-mono); font-weight: 500;
  transition: all 0.2s ease;
}
.skill:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  background: var(--accent-soft);
}

/* ============================================================
   Education
   ============================================================ */
.edu-card {
  display: flex; align-items: center; gap: 24px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 600px;
}
.edu-logo {
  width: 64px; height: 64px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 179, 71, 0.25);
  border-radius: 16px;
  font-size: 32px;
  flex-shrink: 0;
}
.edu-degree {
  font-size: 18px; font-weight: 700;
  margin-bottom: 4px;
}
.edu-school {
  font-size: 15px; color: var(--text-dim);
  font-weight: 500; margin-bottom: 4px;
}
.edu-date {
  font-size: 13px; color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============================================================
   Contact
   ============================================================ */
.contact-card {
  position: relative;
  padding: clamp(32px, 5vw, 56px);
  background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.contact-card::before {
  content: ''; position: absolute;
  top: -150px; right: -150px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  filter: blur(60px); opacity: 0.4;
  pointer-events: none;
}
.contact-head { position: relative; max-width: 600px; margin-bottom: 36px; }
.contact-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.2; margin-bottom: 14px;
}
.contact-sub {
  font-size: 16px; color: var(--text-dim); line-height: 1.7;
}
.contact-links {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(195px, 1fr));
  gap: 14px;
}
.contact-link {
  display: flex; align-items: center; gap: 14px;
  padding: 18px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.contact-link:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: rgba(255,255,255,0.04);
}
.contact-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 12px;
  flex-shrink: 0;
}
.contact-label {
  font-size: 12px; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; margin-bottom: 2px;
}
.contact-value {
  font-size: 13.5px; color: var(--text);
  font-weight: 500;
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
  line-height: 1.35;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 32px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: var(--text-muted);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-avatar { width: 220px; height: 220px; }
  .avatar-card-1 { left: -20px; }
  .avatar-card-2 { right: -20px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .role { grid-template-columns: 1fr; gap: 16px; }
  .role-time { display: flex; align-items: baseline; gap: 12px; }
  .role-duration { margin-top: 0; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-cta { margin-left: auto; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 4px;
    padding: 12px 24px 20px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
  }
  .nav.open .nav-links a { padding: 10px 0; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr 1fr; padding: 20px 12px; }
  .stat-number { font-size: 28px; }
  .avatar-card { font-size: 11px; padding: 8px 12px; }
  .role { padding: 20px; }
  .skill-block, .app-card, .project-card { padding: 20px; }
  .footer-inner { flex-direction: column; text-align: center; }
}