/* ============================================================================
   CYBER4BUSINESS — BRAND SYSTEM v1.0
   Midnight / Signal Blue / Cyber Cyan / Slate / Cloud / Paper
   Display: Space Grotesk · Text: IBM Plex Sans · Mono: IBM Plex Mono
   ============================================================================ */

:root {
  /* Core palette */
  --midnight: #0a0f1c;
  --signal-blue: #2b59ff;
  --cyber-cyan: #23c4d8;
  --slate: #33405a;

  /* Neutrals (light → dark) */
  --paper: #f6f8fb;
  --cloud: #e9eef5;
  --n-100: #f1f4f9;
  --n-200: #dfe5ee;
  --n-300: #c0c7d4;
  --n-400: #b4bbc6;
  --n-500: #8a94a6;
  --n-600: #6b7688;
  --n-700: #5b6577;
  --n-800: #4a5568;

  /* Semantic */
  --bg: var(--paper);
  --bg-alt: var(--n-100);
  --card: #ffffff;
  --border: var(--n-200);
  --text: var(--midnight);
  --muted: var(--n-700);
  --accent: var(--signal-blue);
  --accent-2: var(--cyber-cyan);
  --danger: #d0304a;
  --radius: 12px;

  /* Reversed (dark) surfaces */
  --dark-bg: var(--midnight);
  --dark-card: #10182b;
  --dark-border: #1c2540;
  --dark-text: #ffffff;
  --dark-muted: var(--n-400);

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-text: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-text);
  line-height: 1.65;
  font-size: 15px;
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.5px; }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 20px;
}

.logo { display: flex; align-items: center; }
.logo img { height: 30px; width: auto; display: block; }

nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
}

nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.92rem;
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  font-family: var(--font-text);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(43, 89, 255, 0.28); }

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

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

.dark-section .btn-outline,
.hero .btn-outline { border-color: var(--dark-border); color: var(--dark-text); }
.dark-section .btn-outline:hover,
.hero .btn-outline:hover { border-color: var(--accent-2); color: var(--accent-2); }

/* Reversed / dark sections */
.dark-section {
  background: var(--dark-bg);
  color: var(--dark-text);
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
}

.dark-section .muted-text,
.dark-section p { color: var(--dark-muted); }

.dark-section h1, .dark-section h2, .dark-section h3 { color: #ffffff; }

/* Hero */
.hero {
  padding: 88px 0 76px;
  position: relative;
  overflow: hidden;
  background: var(--dark-bg);
  border-bottom: 1px solid var(--dark-border);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(43, 89, 255, 0.35), transparent 45%),
    radial-gradient(circle at 85% 0%, rgba(35, 196, 216, 0.25), transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.dark-section .eyebrow, .hero .eyebrow { color: var(--accent-2); }

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #ffffff;
  letter-spacing: -1px;
}

.hero p.lead {
  color: var(--dark-muted);
  font-size: 1.08rem;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.terminal {
  background: #060a14;
  border-radius: 10px;
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-2);
  border: 1px solid var(--dark-border);
  line-height: 1.9;
}

.terminal .line { margin-bottom: 8px; }
.terminal .prompt { color: var(--accent); font-weight: 600; }

/* Sections */
section { padding: 76px 0; }

.section-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }

.section-header h2 { font-size: 1.9rem; margin-bottom: 14px; }

.section-header p { color: var(--muted); }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 16px 32px rgba(10, 15, 28, 0.06); }

.dark-section .card {
  background: var(--dark-card);
  border-color: var(--dark-border);
}

.dark-section .card:hover { border-color: var(--accent-2); box-shadow: 0 16px 32px rgba(0,0,0,0.3); }

.dark-section .card p { color: var(--dark-muted); }

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: rgba(43, 89, 255, 0.08);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.dark-section .card .icon { background: rgba(35, 196, 216, 0.12); color: var(--accent-2); }

.card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--text); }
.dark-section .card h3 { color: #ffffff; }

.card p { color: var(--muted); font-size: 0.94rem; }

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

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stats .num { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.stats .label { color: var(--muted); font-size: 0.86rem; margin-top: 6px; }

.dark-section .stats .num { color: var(--accent-2); }
.dark-section .stats .label { color: var(--dark-muted); }

.cta-banner {
  text-align: center;
  background: var(--dark-bg);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  padding: 56px 32px;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(43, 89, 255, 0.3), transparent 60%);
  pointer-events: none;
}

.cta-banner h2 { font-size: 1.7rem; margin-bottom: 14px; color: #ffffff; position: relative; }
.cta-banner p { color: var(--dark-muted); margin-bottom: 28px; position: relative; }
.cta-banner .btn { position: relative; }

/* Page header (inner pages) */
.page-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.page-header .eyebrow { margin-bottom: 12px; color: var(--accent); }
.page-header h1 { font-size: 2.2rem; margin-bottom: 14px; letter-spacing: -1px; }
.page-header p { color: var(--muted); max-width: 620px; }

/* Team / values */
.value-list { display: grid; gap: 18px; }

.value-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.value-item .num { font-family: var(--font-display); font-weight: 700; color: var(--accent); font-size: 1.05rem; min-width: 32px; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info .item { margin-bottom: 22px; }
.contact-info .item h4 { font-family: var(--font-mono); font-weight: 500; color: var(--accent); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 6px; }
.contact-info .item p, .contact-info .item a { color: var(--text); }

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

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

label { display: block; font-size: 0.82rem; margin-bottom: 6px; color: var(--muted); font-weight: 500; }

input, textarea, select {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(43, 89, 255, 0.12);
}

textarea { min-height: 130px; resize: vertical; }

.form-status { font-size: 0.9rem; margin-top: 8px; }
.form-status.success { color: var(--accent); }
.form-status.error { color: var(--danger); }

/* Footer */
footer {
  border-top: 1px solid var(--dark-border);
  padding: 48px 0 24px;
  background: var(--dark-bg);
  color: var(--dark-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-grid h4 { font-family: var(--font-mono); font-weight: 500; font-size: 0.75rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; color: #ffffff; }

.footer-grid ul { list-style: none; display: grid; gap: 10px; }
.footer-grid ul a { color: var(--dark-muted); font-size: 0.9rem; }
.footer-grid ul a:hover { color: var(--accent-2); }

.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--n-600);
  font-size: 0.82rem;
  font-family: var(--font-mono);
}

/* Concept: "Cyber4Business" */
.concept-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.concept-k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 2.5px;
  color: var(--n-600);
  text-transform: uppercase;
}

.concept-lead {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.5px;
  color: var(--text);
  margin: 10px 0 0;
  line-height: 1.25;
}

.concept-sub {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
  margin: 10px 0 0;
}

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

.concept-rule { height: 1px; background: var(--border); margin: 26px 0; }

.concept-diagram {
  position: relative;
  width: 100%;
  max-width: 340px;
  height: 300px;
  margin: 0 auto;
}

.concept-diamond {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 128px;
  height: 128px;
  border: 2.5px solid var(--midnight);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card);
}

.concept-diamond span {
  transform: rotate(-45deg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 54px;
  color: var(--accent);
}

.concept-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
}

.concept-lbl { position: absolute; }

.concept-lbl b {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 1.2px;
  color: var(--text);
  text-transform: uppercase;
  font-weight: 500;
}

.concept-lbl small { display: block; font-size: 0.7rem; color: var(--n-600); margin-top: 2px; }

@media (max-width: 760px) {
  .concept-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* Partners & Certifications */
.partner-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}

.partner-block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.partner-block-header h3 { font-size: 1.25rem; margin-bottom: 6px; }
.partner-block-header p { color: var(--muted); font-size: 0.92rem; max-width: 520px; }
.partner-block-header a.website-link { font-size: 0.85rem; color: var(--accent); white-space: nowrap; font-weight: 500; }

.badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 20px;
}

.badge-item { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }

.badge-shape {
  width: 120px;
  height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border-width: 4px;
  border-style: solid;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
}

.badge-shape.hexagon {
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.badge-shape.shield {
  clip-path: polygon(50% 0%, 100% 18%, 100% 58%, 50% 100%, 0% 58%, 0% 18%);
}

.badge-shape .badge-title { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-shape .badge-subtitle { font-family: var(--font-mono); font-weight: 500; font-size: 0.66rem; margin-top: 4px; opacity: 0.85; }

.badge-caption { font-size: 0.82rem; color: var(--muted); max-width: 140px; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .grid-3, .grid-2, .contact-grid, .stats, .footer-grid {
    grid-template-columns: 1fr;
  }
  nav { position: fixed; top: 62px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border); display: none; }
  nav.open { display: block; }
  nav ul { flex-direction: column; padding: 20px 24px; gap: 18px; }
  .nav-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
}