:root {
  --bg: #0b0f14;
  --bg-muted: #0f151d;
  --card: #111821;
  --text: #e6edf3;
  --text-muted: #9ba7b4;
  --accent: #48d1cc;
  --accent-soft: rgba(72, 209, 204, 0.12);
  --border: rgba(255, 255, 255, 0.08);
  --max-width: 1120px;
  --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(72, 209, 204, 0.08), transparent 35rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.container {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

.narrow { max-width: 780px; }
.section { padding: 96px 0; scroll-margin-top: 96px; }
.muted { background: rgba(15, 21, 29, 0.68); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px max(16px, calc((100vw - var(--max-width)) / 2));
  background: rgba(11, 15, 20, 0.84);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand img {
  border-radius: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
}

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

.nav-cta {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text) !important;
  background: var(--accent-soft);
}

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

h1, h2, h3 {
  line-height: 1.12;
  margin: 0 0 18px;
}

h1 { font-size: clamp(3rem, 8vw, 6rem); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 18px; }

.hero-text,
.section-lead {
  font-size: 1.18rem;
  color: var(--text-muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.18);
}

.button.primary {
  background: var(--accent);
  color: #061012;
  border-color: var(--accent);
}

.button.secondary {
  background: var(--accent-soft);
  color: var(--text);
}

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

.button:disabled {
  cursor: not-allowed;
  opacity: 0.7;
  transform: none;
}

.hero-card,
.feature-card,
.project-card,
.contact-form,
blockquote {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.hero-logo {
  border-radius: 22px;
  margin-bottom: 20px;
  box-shadow: 0 18px 60px rgba(72, 209, 204, 0.1);
}

.card-label {
  color: var(--accent);
  font-weight: 700;
  margin-top: 0;
}

.hero-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.hero-card ul {
  padding-left: 20px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.feature-grid,
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.feature-card p,
.project-card p,
.muted-text { color: var(--text-muted); }

.principles-grid p {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}

blockquote {
  margin: 32px 0 0;
  font-size: 1.2rem;
  border-left: 4px solid var(--accent);
}

.project-card { margin-top: 28px; }

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.badge-row span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--text-muted);
}

.contact-form {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text-muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
}

select option {
  background: var(--bg-muted);
  color: var(--text);
}

textarea { resize: vertical; }

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(72, 209, 204, 0.45);
  outline-offset: 2px;
}

.hp-field { display: none; }

.form-status {
  min-height: 1.5em;
  margin-bottom: 0;
}

.form-status[data-type="success"] { color: var(--accent); }
.form-status[data-type="error"] { color: #ff9b9b; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px max(16px, calc((100vw - var(--max-width)) / 2));
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.site-footer p { margin: 0; }

.site-footer div {
  display: flex;
  gap: 16px;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

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

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .feature-grid,
  .principles-grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 520px) {
  .button,
  .button-row,
  .button-row a {
    width: 100%;
  }

  .button-row { align-items: stretch; }
  h1 { font-size: 3rem; }
}