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

:root {
  --bg:       #000000;
  --surface:  #0d0d0d;
  --border:   #1f1f1f;
  --text:     #e8e8e8;
  --muted:    #888888;
  --accent:   #00e5c8;
  --accent-d: #00b39c;
  --danger:   #ff4d4d;
  --success:  #00c27a;
  --font:     'Segoe UI', system-ui, -apple-system, sans-serif;
  --mono:     'Consolas', 'Courier New', monospace;
  --radius:   4px;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-d); }

ul { list-style: none; }

/* ── Utility ──────────────────────────────────────────────────── */
.container {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

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

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform 0.15s;
}
.btn:hover { background: var(--accent-d); border-color: var(--accent-d); color: #000; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  margin-left: 1rem;
}
.btn-outline:hover { background: var(--accent); color: #000; }

/* ── Navigation ───────────────────────────────────────────────── */
header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

.logo {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}
.logo:hover { color: #fff; }

.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 6rem;
}

.hero-tag {
  font-size: 0.8rem;
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-sub {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

/* ── Sections ─────────────────────────────────────────────────── */
.section { padding-block: 6rem; }

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 580px;
  margin-bottom: 3.5rem;
}

/* ── Services grid ────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card {
  background: var(--surface);
  padding: 2.5rem 2rem;
  transition: background var(--transition);
}
.card:hover { background: #111; }

.card-icon {
  font-size: 1.8rem;
  margin-bottom: 1.25rem;
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.25rem;
}

.card ul { display: flex; flex-direction: column; gap: 0.55rem; }

.card li {
  color: var(--muted);
  font-size: 0.9rem;
  padding-left: 1rem;
  position: relative;
}
.card li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ── About ────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 1rem;
}
.about-text .section-title { margin-bottom: 1.5rem; }

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-width: 180px;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.stat { display: flex; flex-direction: column; align-items: center; text-align: center; }
.stat-num {
  font-family: var(--mono);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Contact form ─────────────────────────────────────────────── */
.contact-form {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

input, select, textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

input::placeholder, textarea::placeholder { color: #444; }

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 229, 200, 0.1);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}
select option { background: var(--surface); }

textarea { resize: vertical; min-height: 140px; }

.form-message {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  display: none;
}
.form-message.success {
  display: block;
  background: rgba(0, 194, 122, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}
.form-message.error {
  display: block;
  background: rgba(255, 77, 77, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem;
  background: var(--surface);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.footer-text {
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-small { font-size: 0.78rem; color: #555; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.25rem; }
  .nav-toggle { display: block; position: relative; z-index: 110; }

  .form-row { grid-template-columns: 1fr; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .about-stats {
    flex-direction: row;
    justify-content: space-around;
    min-width: unset;
  }

  .btn-outline { margin-left: 0; margin-top: 0.75rem; }

  .hero-content { padding-block: 3rem; }
}

@media (max-width: 480px) {
  .about-stats { flex-direction: column; align-items: center; }
}