/* === TKLoop Brand Website Styles === */
:root {
  --bg-dark: #0f1115;
  --bg-card: #1a1d24;
  --bg-lighter: #22262f;
  --orange: #f97316;
  --orange-light: #fb923c;
  --orange-dark: #ea580c;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #2d3340;
  --white: #ffffff;
  --radius: 12px;
  --max-width: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.7;
}

/* === Navbar === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(15,17,21,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 68px;
}
.logo { font-size: 1.6rem; font-weight: 800; color: var(--white); text-decoration: none; letter-spacing: -0.5px; }
.logo span { color: var(--orange); }
.nav-links { display: flex; list-style: none; gap: 36px; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--orange-light); }
.btn-nav {
  background: var(--orange); color: var(--white); padding: 10px 24px;
  border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 0.9rem;
  transition: background 0.2s;
}
.btn-nav:hover { background: var(--orange-dark); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* === Hero === */
.hero {
  min-height: 85vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0f1115 0%, #1a1d24 40%, #1e293b 70%, #312e1e 100%);
  margin-top: 68px;
}
.hero::before {
  content: ''; position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(249,115,22,0.15) 0%, transparent 70%);
}
.hero::after {
  content: ''; position: absolute; bottom: -100px; left: -100px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(249,115,22,0.1) 0%, transparent 70%);
}
.hero-content {
  text-align: center; position: relative; z-index: 2; padding: 0 24px; max-width: 800px;
}
.hero-content h1 { font-size: 3.8rem; font-weight: 900; color: var(--white); line-height: 1.15; margin-bottom: 20px; letter-spacing: -1px; }
.hero-content h1 span { color: var(--orange); display: block; }
.hero-content p { font-size: 1.25rem; color: var(--text-muted); margin-bottom: 40px; max-width: 560px; margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn-primary {
  background: var(--orange); color: var(--white); padding: 14px 36px;
  border-radius: 10px; text-decoration: none; font-weight: 700; font-size: 1rem;
  transition: all 0.2s; display: inline-block;
}
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-1px); }
.btn-outline {
  border: 2px solid var(--border); color: var(--text); padding: 14px 36px;
  border-radius: 10px; text-decoration: none; font-weight: 600; font-size: 1rem;
  transition: all 0.2s; display: inline-block;
}
.btn-outline:hover { border-color: var(--orange); color: var(--orange-light); }

/* === Sections === */
section { padding: 100px 24px; }
.section-title { text-align: center; font-size: 2.4rem; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.section-sub { text-align: center; color: var(--text-muted); font-size: 1.1rem; max-width: 500px; margin: 0 auto 60px; }

/* === Category Cards === */
.cat-grid {
  max-width: var(--max-width); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.cat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 40px 28px; text-align: center; text-decoration: none;
  transition: all 0.3s;
}
.cat-card:hover { border-color: var(--orange); transform: translateY(-4px); box-shadow: 0 8px 30px rgba(249,115,22,0.1); }
.cat-icon { font-size: 3rem; margin-bottom: 20px; }
.cat-card h3 { color: var(--white); font-size: 1.2rem; margin-bottom: 10px; }
.cat-card p { color: var(--text-muted); font-size: 0.9rem; }

/* === Feature Banner === */
.feature-banner {
  background: linear-gradient(135deg, #1a1405 0%, #1f1a0a 50%, #0f1115 100%);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.feature-content {
  max-width: var(--max-width); margin: 0 auto; text-align: center;
}
.badge {
  display: inline-block; background: rgba(249,115,22,0.2); color: var(--orange-light);
  padding: 6px 18px; border-radius: 20px; font-size: 0.9rem; font-weight: 600; margin-bottom: 20px;
}
.feature-content h2 { font-size: 2.2rem; color: var(--white); margin-bottom: 16px; }
.feature-content p { color: var(--text-muted); font-size: 1.1rem; max-width: 500px; margin: 0 auto 30px; }

/* === Promise === */
.promise-grid {
  max-width: var(--max-width); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
}
.promise-item { text-align: center; padding: 30px 20px; }
.promise-icon {
  width: 48px; height: 48px; border-radius: 12px; background: rgba(249,115,22,0.15);
  color: var(--orange-light); display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.3rem; font-weight: 700;
}
.promise-item h4 { color: var(--white); font-size: 1.1rem; margin-bottom: 8px; }
.promise-item p { color: var(--text-muted); font-size: 0.9rem; }

/* === CTA === */
.cta {
  text-align: center;
  background: linear-gradient(135deg, var(--bg-lighter) 0%, var(--bg-card) 100%);
}
.cta h2 { font-size: 2.4rem; color: var(--white); margin-bottom: 16px; }
.cta p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 30px; }

/* === Footer === */
footer { background: #0a0c10; border-top: 1px solid var(--border); padding: 60px 24px 30px; }
.footer-grid {
  max-width: var(--max-width); margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px;
}
.footer-brand p { color: var(--text-muted); margin-top: 12px; font-size: 0.95rem; }
.footer-links h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 16px; }
.footer-links a { display: block; color: var(--text-muted); text-decoration: none; font-size: 0.9rem; margin-bottom: 10px; transition: color 0.2s; }
.footer-links a:hover { color: var(--orange-light); }
.footer-bottom { max-width: var(--max-width); margin: 40px auto 0; padding-top: 24px; border-top: 1px solid var(--border); text-align: center; }
.footer-bottom p { color: var(--text-muted); font-size: 0.85rem; }

/* === Products Page === */
.page-header {
  padding: 140px 24px 60px; text-align: center;
  background: linear-gradient(135deg, #0f1115 0%, #1a1d24 100%);
}
.page-header h1 { font-size: 3rem; color: var(--white); font-weight: 900; }
.page-header p { color: var(--text-muted); font-size: 1.15rem; margin-top: 12px; }

.product-section { max-width: var(--max-width); margin: 0 auto 80px; padding: 0 24px; }
.product-section h2 { font-size: 1.8rem; color: var(--white); margin-bottom: 8px; padding-top: 80px; }
.product-section .subtitle { color: var(--text-muted); margin-bottom: 30px; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; transition: all 0.3s;
}
.product-card:hover { border-color: var(--orange); transform: translateY(-4px); }
.product-card h3 { color: var(--white); font-size: 1.15rem; margin-bottom: 10px; }
.product-card .features { color: var(--text-muted); font-size: 0.9rem; list-style: none; margin: 16px 0; }
.product-card .features li { padding: 4px 0; }
.product-card .features li::before { content: "✓ "; color: var(--orange); }
.price { color: var(--orange-light); font-size: 1.5rem; font-weight: 700; margin: 12px 0; }
.btn-sm {
  background: var(--orange); color: var(--white); padding: 10px 20px;
  border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 0.9rem;
  display: inline-block; transition: background 0.2s;
}
.btn-sm:hover { background: var(--orange-dark); }

/* === About Page === */
.about-section { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.about-section h2 { font-size: 1.8rem; color: var(--white); margin: 50px 0 20px; }
.about-section p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 20px; line-height: 1.8; }
.about-section blockquote {
  border-left: 3px solid var(--orange); padding: 20px 30px;
  margin: 40px 0; background: var(--bg-card); border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic; color: var(--orange-light); font-size: 1.2rem;
}

/* === Contact Page === */
.contact-grid { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 0 24px; }
.contact-info h2 { font-size: 1.6rem; color: var(--white); margin-bottom: 12px; }
.contact-info p { color: var(--text-muted); margin-bottom: 24px; }
.contact-info .info-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 20px; }
.contact-info .info-icon { color: var(--orange); font-size: 1.2rem; margin-top: 2px; }
.contact-info .info-text { color: var(--text-muted); }

.contact-form { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; }
.contact-form h3 { color: var(--white); margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; color: var(--text); font-size: 0.9rem; margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.95rem; font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--orange);
}
.form-group textarea { min-height: 120px; resize: vertical; }

.faq-section { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.faq-item h3 { color: var(--white); font-size: 1.05rem; margin-bottom: 8px; }
.faq-item p { color: var(--text-muted); font-size: 0.95rem; }

/* === Responsive === */
@media (max-width: 1024px) {
  .cat-grid, .promise-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .btn-nav { display: none; }
  .hamburger { display: flex; }
  .hero-content h1 { font-size: 2.4rem; }
  .cat-grid, .promise-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  section { padding: 60px 16px; }
}

/* Nav open on mobile */
.nav-links.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
  background: var(--bg-dark); padding: 20px; gap: 16px; border-bottom: 1px solid var(--border); }