:root {
  --bg: #0b0f17;
  --bg-elev: #111826;
  --bg-card: #141c2c;
  --border: #1f2a3d;
  --text: #e6ecf5;
  --text-muted: #8b95a8;
  --accent: #6aa8ff;
  --accent-strong: #4b8eff;
  --accent-soft: rgba(106, 168, 255, 0.12);
  --gradient: linear-gradient(135deg, #4b8eff 0%, #8a5cff 60%, #ff5ca8 100%);
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-strong);
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(14px);
  background: rgba(11, 15, 23, 0.72);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--gradient);
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text);
}

.lang-switch {
  display: inline-flex;
  gap: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
}

.lang-switch button {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-switch button.is-active {
  background: var(--accent-soft);
  color: var(--accent);
}

.lang-switch button:hover:not(.is-active) {
  color: var(--text);
}

/* Hero */
.hero {
  position: relative;
  padding: 110px 0 90px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(75, 142, 255, 0.25) 0%, rgba(75, 142, 255, 0) 60%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.hero-title {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 500;
  color: var(--accent);
  margin: 0 0 22px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #0a0f1a;
}

.btn-primary:hover {
  background: #82b6ff;
  color: #0a0f1a;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
}

.hero-stats span {
  padding: 14px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Sections */
section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* About */
.about-body {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.about-lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text);
  margin: 0;
  line-height: 1.45;
}

.about-text {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
}

/* Companies */
.companies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.company-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.company-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
  z-index: 0;
}

.company-card:hover {
  border-color: transparent;
  transform: translateY(-2px);
}

.company-card:hover::before {
  opacity: 0.06;
}

.company-card > * {
  position: relative;
  z-index: 1;
}

.company-role {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}

.company-name {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.company-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 14px;
}

.company-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

/* Trusted by — logo/name strip */
.trusted-by {
  padding: 56px 0 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0) 100%);
}

.trusted-title {
  text-align: center;
  margin: 0 0 24px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.trusted-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 14px 32px;
}

.trusted-logo {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  padding: 6px 4px;
  opacity: 0.85;
  transition: color 0.2s ease, opacity 0.2s ease;
  white-space: nowrap;
}

.trusted-logo:hover {
  color: var(--text);
  opacity: 1;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

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

.project-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.project-client {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-period {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.project-description {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 0.92rem;
  flex: 1;
}

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

.project-tag {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.skill-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}

.skill-card h3 {
  margin: 0 0 16px;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

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

.skill-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Contact */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  background-image: radial-gradient(
    circle at top right,
    rgba(106, 168, 255, 0.12),
    transparent 60%
  );
}

.contact-card h2 {
  margin: 0 0 12px;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.contact-card p {
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

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

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.contact-link .label {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-right: 4px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.footer-inner a {
  color: var(--text-muted);
}

.footer-inner a:hover {
  color: var(--text);
}

/* Terms page */
.terms-page {
  padding: 80px 0;
}

.terms-page h1 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin: 0 0 32px;
  letter-spacing: -0.02em;
}

.terms-back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.terms-section {
  margin-bottom: 28px;
}

.terms-section h2 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.terms-section p {
  margin: 0;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 880px) {
  .about-body {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

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

  .nav-links {
    display: none;
  }

  section {
    padding: 64px 0;
  }

  .hero {
    padding: 70px 0 60px;
  }

  .contact-card {
    padding: 32px 24px;
  }

  .trusted-strip {
    gap: 12px 22px;
  }

  .trusted-logo {
    font-size: 0.9rem;
  }
}