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

:root {
  --bg:        #0d0f12;
  --bg2:       #13171c;
  --bg3:       #1a1f27;
  --border:    #252b35;
  --accent:    #3b8beb;
  --accent2:   #5fa3f5;
  --text:      #e8eaf0;
  --text-muted:#8a92a3;
  --radius:    12px;
  --font:      'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

nav ul {
  display: flex;
  gap: 2rem;
}

nav ul a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ── Buttons ── */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover { background: var(--accent2); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
  transform: translateY(-1px);
}

/* ── Hero ── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: radial-gradient(ellipse at 60% 40%, rgba(59, 139, 235, 0.08) 0%, transparent 70%);
  padding: 4rem 2rem;
}

.hero-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

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

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2.5rem;
}

/* ── Sections ── */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2rem;
}

.section-inner h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-sub {
  color: var(--text-muted);
  margin-bottom: 3rem;
}

/* ── Products ── */
.products { background: var(--bg2); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}

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

.product-card.featured {
  border-color: rgba(59, 139, 235, 0.4);
}

.product-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(59, 139, 235, 0.15);
  color: var(--accent2);
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}

.product-badge.muted {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
}

.product-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.product-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.product-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.feature-list {
  margin-bottom: 1.75rem;
}

.feature-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
}

.store-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.store-btn {
  flex: 1;
  text-align: center;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

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

/* ── About ── */
.about { background: var(--bg); }

.about-content {
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-content p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ── Contact ── */
.contact { background: var(--bg2); }

.contact-form {
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.2s;
  width: 100%;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form textarea { resize: vertical; }

.form-success {
  background: rgba(59, 235, 130, 0.1);
  border: 1px solid rgba(59, 235, 130, 0.3);
  color: #5ff0a0;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.form-error {
  background: rgba(235, 59, 59, 0.1);
  border: 1px solid rgba(235, 59, 59, 0.3);
  color: #f08080;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Mobile ── */
@media (max-width: 640px) {
  .nav-inner { padding: 1rem; }
  nav ul { gap: 1.25rem; }
  .hero { min-height: 80vh; }
  .section-inner { padding: 3.5rem 1.25rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}