:root {
  --bg: #ebeff4;
  --surface: #f5f7fa;
  --card: #f1f1f1;
  --ink: #141923;
  --muted: #4f5b6a;
  --line: #d4dce5;
  --blue-500: #2a78d0;
  --blue-600: #1c7de0;
  --blue-700: #145fb6;
  --green: #1e9a6f;
  --amber: #d39b23;
  --shadow: 0 6px 22px rgba(13, 20, 34, 0.06);
  --radius-xl: 22px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 20% 0%, #f8fbff 0%, var(--bg) 45%), var(--bg);
  color: var(--ink);
  font-family: Manrope, "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 72px;
  display: grid;
  grid-template-columns: 72px 1fr 72px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: rgba(241, 241, 241, 0.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.topbar-title {
  text-align: center;
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  font-weight: 700;
}

.icon-btn {
  display: grid;
  place-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin: 0 auto;
  border: none;
  border-radius: 12px;
  background: transparent;
  color: #2c3038;
}

.icon-btn span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 99px;
  background: currentColor;
}

.icon-btn svg {
  width: 26px;
  height: 26px;
}

.page-shell {
  width: min(1120px, 94vw);
  margin: 28px auto 48px;
}

.card {
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #f7f9fc, #f2f5f9);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(24px, 3vw, 44px);
}

.hero-head {
  display: flex;
  gap: clamp(20px, 3vw, 34px);
  align-items: center;
}

.hero-avatar {
  width: clamp(170px, 23vw, 260px);
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 26px;
  object-fit: cover;
  object-position: center 14%;
  border: 1px solid #d8dde6;
  background: linear-gradient(145deg, #dde7f6, #f3f6fb);
  box-shadow: 0 10px 28px rgba(14, 32, 65, 0.14);
  flex-shrink: 0;
}

.logo-tile {
  width: 92px;
  height: 92px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.8rem;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: 0.04em;
  color: #111;
  background: #efefef;
  border: 1px solid #dcdcdc;
  flex-shrink: 0;
}

.hero h1 {
  margin: 2px 0 0;
  font-size: clamp(2rem, 3.2vw, 3.3rem);
  line-height: 1.06;
  max-width: 900px;
}

.hero h1 span {
  display: block;
}

.hero-role {
  margin: 14px 0 0;
  max-width: 760px;
  color: #24303f;
  font-weight: 700;
  line-height: 1.45;
  font-size: clamp(0.98rem, 1.35vw, 1.12rem);
}

.lead {
  margin: clamp(18px, 2vw, 28px) 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 1.55;
  max-width: 840px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-cloud span {
  border-radius: 999px;
  padding: 9px 16px;
  background: #e8f1fd;
  color: #1e4f92;
  border: 1px solid #c7dcf7;
  font-weight: 700;
  font-size: clamp(0.88rem, 1.2vw, 0.96rem);
  white-space: nowrap;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  text-decoration: none;
  border-radius: var(--radius-md);
  padding: 14px 30px;
  font-weight: 700;
  font-size: 1.04rem;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--blue-500), var(--blue-700));
}

.btn-outline {
  color: #1d232b;
  border-color: var(--line);
  background: #f0f0f0;
}

.stats-grid {
  margin-top: 22px;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(230px, 1fr));
}

.stat-item {
  padding: 26px;
}

.stat-item h2 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  font-family: "Space Grotesk", sans-serif;
  color: var(--blue-500);
}

.stat-item:nth-child(3) h2 {
  color: var(--green);
}

.stat-item:nth-child(4) h2 {
  color: var(--amber);
}

.stat-item p {
  margin: 8px 0 0;
  color: #4e545e;
  font-size: 1.2rem;
}

.projects {
  margin-top: 34px;
}

.projects > h2 {
  margin: 0 0 20px;
  font-size: clamp(1.5rem, 2.2vw, 2.1rem);
}

.project-list {
  display: grid;
  gap: 18px;
}

.stack {
  margin-top: 34px;
}

.stack h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2.1rem);
}

.stack-list {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stack-list span {
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid #ccd8e7;
  background: #f2f7ff;
  color: #24496f;
  font-weight: 700;
  font-size: 0.9rem;
}

.project-card {
  overflow: hidden;
}

.project-card img {
  width: 100%;
  height: 235px;
  object-fit: cover;
  display: block;
  filter: saturate(0.95);
}

.expertise {
  margin-top: 34px;
}

.expertise > h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2.1rem);
}

.expertise > p {
  margin: 10px 0 0;
  color: #465466;
  line-height: 1.6;
  max-width: 860px;
}

.expertise-grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
}

.expertise-item {
  padding: 20px;
}

.expertise-item h3 {
  margin: 0;
  font-size: 1.05rem;
}

.expertise-item p {
  margin: 10px 0 0;
  color: #4b5a6b;
  line-height: 1.58;
}

.project-content {
  padding: 26px;
}

.project-content h3 {
  margin: 0;
  font-size: clamp(1.2rem, 1.9vw, 1.95rem);
}

.project-content p {
  margin: 14px 0 0;
  font-size: 1.08rem;
  line-height: 1.6;
  color: #4a515b;
}

.chip-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip-row span {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid #d8d8d8;
  background: #f2f2f2;
  font-size: 0.98rem;
  font-weight: 700;
}

.cta {
  margin-top: 30px;
  padding: clamp(28px, 4vw, 44px);
  border-radius: 22px;
  background: linear-gradient(90deg, #2b95ea 0%, #1a74df 100%);
  color: #f4f8ff;
}

.cta h2 {
  margin: 0;
  font-size: clamp(2rem, 3.4vw, 3.3rem);
}

.cta p {
  margin: 14px 0 0;
  max-width: 680px;
  font-size: clamp(1.06rem, 1.5vw, 1.25rem);
  line-height: 1.5;
  color: rgba(245, 248, 255, 0.9);
}

.btn-deep {
  background: linear-gradient(130deg, #176de0, #0d52bc);
  color: #fff;
}

.btn-white {
  color: #275eb8;
  background: #f5f8ff;
}

.contact {
  margin-top: 24px;
  padding: clamp(24px, 3vw, 34px);
}

.contact h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.4vw, 2.4rem);
}

.contact > p {
  margin: 10px 0 0;
  max-width: 840px;
  color: #46515e;
  line-height: 1.6;
}

.contact-grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(190px, 1fr));
}

.contact-item {
  border-radius: 14px;
  border: 1px solid #d6dce4;
  background: #f6f8fb;
  padding: 16px;
}

.contact-item h3 {
  margin: 0;
  font-size: 1rem;
  color: #1f2d40;
}

.contact-item a,
.contact-item p {
  margin: 8px 0 0;
  display: block;
  line-height: 1.5;
  color: #1a5fb8;
  text-decoration: none;
  word-break: break-word;
}

.contact-item p {
  color: #364252;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 860px) {
  .topbar {
    grid-template-columns: 64px 1fr 64px;
    height: 64px;
  }

  .hero-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .logo-tile {
    width: 74px;
    height: 74px;
    border-radius: 16px;
    font-size: 1.4rem;
  }

  .hero-avatar {
    border-radius: 18px;
  }

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

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

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

  .stack-list span {
    width: fit-content;
  }

  .project-card img {
    height: 210px;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100%, 96vw);
    margin-top: 18px;
  }

  .hero,
  .project-content,
  .stat-item,
  .cta,
  .contact {
    padding: 18px;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .tag-cloud span {
    white-space: normal;
  }
}