:root {
  --bg: #0a0a0f;
  --bg-alt: #0d0d14;
  --surface: #14141c;
  --surface-2: #1a1a25;
  --border: rgba(255, 255, 255, 0.08);
  --blue: #4f6bff;
  --blue-bright: #6f86ff;
  --blue-deep: #2f44d4;
  --white: #f5f5f7;
  --muted: #9a9aa8;
  --radius: 16px;
  --max: 1180px;
  --nav-h: 76px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  background: var(--bg);
  color: var(--white);
  font-family: "Inter", system-ui, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.15;
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

::selection {
  background: var(--blue);
  color: #fff;
}

.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.3s ease, box-shadow 0.3s ease, height 0.3s ease;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border);
  height: 64px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo i {
  color: var(--blue-bright);
  font-size: 1.1rem;
}

.nav-menu {
  display: flex;
  gap: 36px;
}

.nav-link {
  position: relative;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--blue-bright);
  transition: width 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--white);
  padding: 8px 12px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.lang-toggle:hover {
  border-color: var(--blue);
  transform: translateY(-1px);
}

.lang-toggle .fi {
  border-radius: 3px;
  width: 22px;
  height: 16px;
}

.lang-caret {
  font-size: 0.65rem;
  color: var(--muted);
  transition: transform 0.25s ease;
}

.lang-switch {
  position: relative;
}

.lang-switch.open .lang-caret {
  transform: rotate(180deg);
}

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 168px;
  list-style: none;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 110;
}

.lang-switch.open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: none;
  border: 0;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-option:hover {
  background: var(--surface);
  color: var(--white);
}

.lang-option .fi {
  width: 22px;
  height: 16px;
  border-radius: 3px;
  flex-shrink: 0;
}

.lang-option span:nth-child(2) {
  flex: 1;
}

.lang-check {
  font-size: 0.72rem;
  color: var(--blue-bright);
  opacity: 0;
}

.lang-option.active {
  color: var(--white);
}

.lang-option.active .lang-check {
  opacity: 1;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 4px;
}

.nav-burger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-burger.open span:nth-child(2) {
  opacity: 0;
}

.nav-burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.55;
  z-index: 0;
}

.blob-1 {
  width: 440px;
  height: 440px;
  background: var(--blue-deep);
  top: -120px;
  right: -80px;
  animation: float 14s ease-in-out infinite;
}

.blob-2 {
  width: 380px;
  height: 380px;
  background: #1b2a8a;
  bottom: -140px;
  left: -100px;
  animation: float 18s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(40px, 30px); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--blue-bright);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.eyebrow-line {
  width: 40px;
  height: 2px;
  background: var(--blue-bright);
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.6rem);
  letter-spacing: -0.03em;
}

.hero-role {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 600;
  margin-top: 6px;
  color: var(--muted);
}

.rotating {
  color: var(--blue-bright);
  border-right: 2px solid var(--blue-bright);
  padding-right: 3px;
  animation: caret 0.8s step-end infinite;
}

@keyframes caret {
  50% { border-color: transparent; }
}

.hero-desc {
  color: var(--muted);
  max-width: 520px;
  margin: 22px 0 30px;
  font-size: 1.04rem;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep));
  color: #fff;
  box-shadow: 0 8px 24px rgba(79, 107, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(79, 107, 255, 0.5);
}

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

.btn-ghost:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
}

.hero-social {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}

.hero-social a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 1rem;
  transition: all 0.2s ease;
}

.hero-social a:hover {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
  transform: translateY(-3px);
}

.hero-avatar {
  position: relative;
  width: 320px;
  height: 320px;
  margin: 0 auto;
}

.avatar-glow {
  position: absolute;
  inset: -30px;
  background: radial-gradient(circle, rgba(79, 107, 255, 0.55), transparent 65%);
  filter: blur(20px);
}

.avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px dashed rgba(79, 107, 255, 0.4);
  animation: spin 24s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.avatar-img {
  position: absolute;
  inset: 14px;
  width: calc(100% - 28px);
  height: calc(100% - 28px);
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid rgba(79, 107, 255, 0.5);
  background: var(--surface);
}

.avatar-badge {
  position: absolute;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 1.4rem;
  color: var(--blue-bright);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
  animation: bob 4s ease-in-out infinite;
}

.avatar-badge-1 { top: 6%; left: -22px; }
.avatar-badge-2 { bottom: 14%; left: -10px; animation-delay: 1s; }
.avatar-badge-3 { top: 22%; right: -22px; animation-delay: 2s; }

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.scroll-down {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  animation: bob 2.4s ease-in-out infinite;
  transition: all 0.2s ease;
}

.scroll-down:hover {
  color: #fff;
  border-color: var(--blue);
}

.section {
  padding: 110px 0;
  position: relative;
}

.section-alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  color: var(--blue-bright);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--muted);
  margin-top: 14px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}

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

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.info-card:hover {
  transform: translateX(6px);
  border-color: var(--blue);
}

.info-card i {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(79, 107, 255, 0.12);
  color: var(--blue-bright);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.info-card h4 {
  font-size: 1rem;
}

.info-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.stats {
  background: linear-gradient(180deg, var(--bg-alt), var(--bg));
  border-block: 1px solid var(--border);
  padding: 64px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue-bright), #fff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-plus {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--blue-bright);
}

.stat p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 6px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.skill-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.skill-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.skill-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(79, 107, 255, 0.2), rgba(79, 107, 255, 0.05));
  color: var(--blue-bright);
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.skill-card h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags span {
  font-size: 0.82rem;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 5px 11px;
  border-radius: 8px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.skill-card:hover .tags span {
  color: var(--white);
  border-color: rgba(79, 107, 255, 0.4);
}

.exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.exp-card {
  padding: 30px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.exp-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-bright), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.exp-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue);
}

.exp-card:hover::before {
  transform: scaleX(1);
}

.exp-card i {
  font-size: 1.6rem;
  color: var(--blue-bright);
  margin-bottom: 16px;
}

.exp-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.exp-card p {
  color: var(--muted);
  font-size: 0.94rem;
}

.high-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.high-card {
  padding: 30px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.high-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue);
}

.high-card-feature {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(150deg, rgba(79, 107, 255, 0.16), var(--surface));
  border-color: rgba(79, 107, 255, 0.35);
}

.high-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(79, 107, 255, 0.14);
  color: var(--blue-bright);
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.high-card h3 {
  font-size: 1.18rem;
  margin-bottom: 10px;
}

.high-card p {
  color: var(--muted);
  font-size: 0.94rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.contact-card {
  padding: 38px 26px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-8px);
  border-color: var(--blue);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.5);
}

.contact-card i {
  font-size: 2rem;
  color: var(--blue-bright);
  margin-bottom: 14px;
}

.contact-card h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.contact-card span {
  color: var(--muted);
  font-size: 0.9rem;
  word-break: break-word;
}

.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: all 0.2s ease;
}

.footer-social a:hover {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.footer-copy {
  color: var(--muted);
  font-size: 0.88rem;
}

.back-to-top {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 90;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep));
  color: #fff;
  box-shadow: 0 8px 24px rgba(79, 107, 255, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
}

@media (max-width: 920px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 56px;
  }

  .eyebrow,
  .hero-cta,
  .hero-social {
    justify-content: center;
  }

  .hero-desc {
    margin-inline: auto;
  }

  .hero-avatar {
    order: -1;
    width: 260px;
    height: 260px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .high-card-feature {
    grid-row: auto;
    grid-column: span 2;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 24px;
  }
}

@media (max-width: 720px) {
  .nav-burger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    transform: translateY(-130%);
    transition: transform 0.35s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 24px;
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

  .section {
    padding: 80px 0;
  }

  .skills-grid,
  .exp-grid,
  .high-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .high-card-feature {
    grid-column: auto;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@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;
  }
}