@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #0D1B2A;           /* Deep Navy (Brand Primary) */
  --card-bg: #1B2E45;          /* Dark Slate */
  --accent: #00C9A7;           /* Electric Teal (Brand Accent) */
  --accent-faded: rgba(0, 201, 167, 0.1);
  --text-white: #FFFFFF;
  --text-slate: #A0B8CC;       /* Light Slate (Brand Secondary) */
  --border: #2D4159;           /* Borders */
  --amber: #F5A623;            /* Primary CTA Amber */
  --font-main: 'Inter', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
  background-color: var(--primary);
  color: var(--text-white);
  font-family: var(--font-main);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, .btn, .logo {
  font-family: var(--font-main);
  letter-spacing: -0.02em;
}

.text-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

header {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  background-color: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 42px;
  display: block;
}

nav ul {
  display: flex;
  gap: 3rem;
  list-style: none;
}

nav a {
  color: var(--text-slate);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

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

/* HERO SECTION */
.hero {
  padding: 12rem 0;
  background: linear-gradient(rgba(13, 27, 42, 0.75), rgba(13, 27, 42, 0.95)), url('../img/industrial_hero.png') center/cover no-repeat;
  text-align: center;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

h1 {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 2.5rem;
  text-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.hero p {
  font-size: 1.35rem;
  color: var(--text-white);
  opacity: 0.9;
  margin-bottom: 4rem;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
}

/* BUTTONS */
.cta-group {
  display: flex;
  gap: 2rem;
  justify-content: center;
}

.btn {
  padding: 1.1rem 2.5rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  border-radius: 2px;
  text-align: center;
}

.btn-primary {
  background-color: var(--amber);
  color: #000000;
}

.btn-primary:hover {
  transform: translateY(-3px);
  filter: brightness(1.1);
  box-shadow: 0 15px 30px -5px rgba(245, 166, 35, 0.3);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-white);
  background-color: rgba(255,255,255,0.02);
}

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

/* TRUST BAR */
.trust-bar {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 5rem;
}

.badge {
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--text-slate);
  opacity: 0.5;
}

/* CARDS */
.products { padding: 10rem 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 3rem; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 4rem 3rem;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.card:hover { border-color: var(--accent); transform: translateY(-5px); }

.card-id { font-family: 'Courier New', monospace; font-size: 0.75rem; background: rgba(255,255,255,0.1); padding: 0.3rem 0.8rem; display: inline-block; margin-bottom: 1.5rem; color: var(--accent); font-weight: 700; width: fit-content; }

.card-title { font-size: 1.75rem; margin-bottom: 1.5rem; line-height: 1.2; }

.card-list { list-style: none; margin-bottom: 3rem; flex-grow: 1; }
.card-list li { margin-bottom: 0.75rem; color: var(--text-slate); font-size: 0.95rem; position: relative; padding-left: 1.25rem; }
.card-list li::before { content: "·"; position: absolute; left: 0; color: var(--accent); font-weight: 900; }

.card-format { font-size: 0.75rem; color: var(--text-white); opacity: 0.6; margin-bottom: 2rem; display: block; border-top: 1px solid var(--border); padding-top: 1.5rem; }

.card-price { font-size: 2.5rem; font-weight: 800; margin-bottom: 2.5rem; }

/* STEPS SECTION */
.steps-section { padding: 10rem 0; background-color: #0b111a; border-top: 1px solid var(--border); }
.steps-container { display: flex; justify-content: space-between; gap: 4rem; position: relative; }

.step { flex: 1; position: relative; text-align: center; }
.step-number { width: 60px; height: 60px; border: 2px solid var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 2.5rem; font-size: 1.5rem; font-weight: 800; color: var(--accent); background: var(--primary); }

.step h4 { font-size: 1.25rem; margin-bottom: 1rem; color: var(--text-white); }
.step p { color: var(--text-slate); font-size: 0.95rem; }

/* CREDIBILITY SECTION */
.why-section { padding: 10rem 0; background-color: var(--card-bg); }
.why-content { display: grid; grid-template-columns: 1fr 1fr; gap: 8rem; align-items: center; }

.stats-row { display: flex; gap: 4rem; margin-top: 4rem; }
.stat-box { flex: 1; }
.stat-val { font-size: 2.5rem; font-weight: 800; color: var(--accent); display: block; margin-bottom: 0.5rem; }
.stat-label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; color: var(--text-slate); letter-spacing: 0.1em; }

/* FEATURES SECTION */
.features-section { padding: 10rem 0; border-top: 1px solid var(--border); }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem 8rem; margin-top: 5rem; }
.feature-item { display: flex; align-items: flex-start; gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--border); }
.feature-item svg { flex-shrink: 0; margin-top: 0.25rem; }

/* FAQ SECTION */
.faq-section { padding: 10rem 0; border-top: 1px solid var(--border); }
.faq-list { max-width: 800px; margin: 5rem auto 0; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary { list-style: none; padding: 2.5rem 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 1.1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 1.5rem; transition: transform 0.3s; }
.faq-item[open] summary::after { content: "−"; }
.faq-content { padding-bottom: 2.5rem; color: var(--text-slate); line-height: 1.8; }

/* CONTACT */
.contact-section { padding: 10rem 0; border-top: 1px solid var(--border); background-color: var(--primary); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10rem; }
.form-group { margin-bottom: 2rem; }
.form-group label { display: block; margin-bottom: 0.75rem; font-weight: 700; font-size: 0.8rem; color: var(--text-slate); letter-spacing: 0.1em; }
.form-control { width: 100%; background: #111111; border: 1px solid var(--border); padding: 1.4rem; color: white; font-family: var(--font-main); font-size: 1rem; border-radius: 0; }
.form-control:focus { outline: none; border-color: var(--accent); }

/* FOOTER */
footer { padding: 10rem 0 5rem; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 8rem; }
.footer-nav h5 { font-size: 0.85rem; color: white; margin-bottom: 2rem; letter-spacing: 0.1em; }
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 1rem; }
.footer-nav a { text-decoration: none; color: var(--text-slate); font-size: 0.95rem; }
.footer-nav a:hover { color: var(--accent); }

@media (max-width: 992px) {
  h1 { font-size: 3rem; }
  .grid, .steps-container, .why-content, .form-grid, .footer-grid, .feature-grid { grid-template-columns: 1fr; display: flex; flex-direction: column; }
  .steps-container { gap: 6rem; }
  .stats-row { flex-wrap: wrap; gap: 2rem; }
  .stat-box { flex: 1 1 100%; }
  .hero { padding: 10rem 0; }
}