/* ===== K2B Network Solutions ===== */
:root {
  --navy: #0b1f3a;
  --navy-2: #13294b;
  --blue: #1e6bff;
  --blue-dark: #1553c7;
  --teal: #12c2a3;
  --ink: #1b2533;
  --muted: #5b6778;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(11, 31, 58, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }

.container { width: min(1140px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(720px, 100% - 32px); }

h1, h2, h3 { line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -0.01em; margin-bottom: 14px; }
h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
p { color: var(--muted); }

.eyebrow {
  text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem;
  font-weight: 700; color: var(--blue); margin-bottom: 10px;
}
.accent { color: var(--blue); }

/* Buttons */
.btn {
  display: inline-block; background: var(--blue); color: #fff; font-weight: 600;
  padding: 14px 26px; border-radius: 10px; border: 2px solid var(--blue);
  transition: background .2s, transform .2s; cursor: pointer; font-size: 1rem; font-family: inherit;
}
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--line); }
.btn-small { padding: 9px 18px; font-size: 0.92rem; }
.btn-full { width: 100%; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--navy); }
.logo-mark {
  background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff;
  font-weight: 800; padding: 6px 10px; border-radius: 8px; letter-spacing: .04em;
}
.logo-text { font-size: 1.05rem; }
.logo-light { color: #fff; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a:not(.btn) { color: var(--ink); font-weight: 500; font-size: .95rem; }
.site-nav a:not(.btn):hover { color: var(--blue); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .2s; }

/* Hero */
.hero { padding: 80px 0 90px; background: radial-gradient(1200px 500px at 85% -10%, #e5eeff 0%, transparent 60%), var(--bg); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.lead { font-size: 1.15rem; margin: 20px 0 30px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.trust-row { list-style: none; display: flex; gap: 22px; flex-wrap: wrap; margin-top: 28px; font-weight: 600; color: var(--navy); font-size: .95rem; }
.check { color: var(--teal); font-weight: 800; margin-right: 4px; }

/* Dashboard mock */
.mock { background: #fff; border-radius: var(--radius); box-shadow: 0 30px 60px rgba(11,31,58,.18); overflow: hidden; border: 1px solid var(--line); }
.mock-bar { display: flex; align-items: center; gap: 6px; padding: 12px 14px; background: var(--navy); color: #cfd9ea; font-size: .8rem; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: #3c5170; display: inline-block; }
.mock-bar span { margin-left: 10px; }
.mock-body { padding: 18px; display: grid; gap: 16px; }
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mock-stats div { background: var(--bg-alt); border-radius: 10px; padding: 10px 12px; }
.mock-stats small { display: block; color: var(--muted); font-size: .72rem; }
.mock-stats strong { font-size: 1.4rem; color: var(--navy); }
.mock-chart { display: flex; align-items: flex-end; gap: 8px; height: 110px; padding: 10px; background: var(--bg-alt); border-radius: 10px; }
.mock-chart span { flex: 1; background: linear-gradient(180deg, var(--blue), var(--teal)); border-radius: 5px 5px 0 0; }
.mock-list div { display: flex; justify-content: space-between; padding: 8px 2px; border-bottom: 1px solid var(--line); font-size: .85rem; }
.mock-list b { font-weight: 600; color: var(--ink); }
.mock-list em { font-style: normal; font-size: .75rem; font-weight: 700; color: #0f8a55; background: #e3f7ee; padding: 2px 8px; border-radius: 20px; }
.mock-list em.pending { color: #a36300; background: #fff2d9; }
.mock-list em.stock { color: var(--blue-dark); background: #e5eeff; }
.mock-report { font-size: .85rem; background: #eafaf6; color: #0c6b5a; padding: 10px 12px; border-radius: 10px; }

/* Sections */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: linear-gradient(135deg, var(--navy), var(--navy-2)); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p, .section-dark li { color: #c3cfe2; }
.section-dark .eyebrow { color: var(--teal); }
.section-head { max-width: 720px; margin: 0 auto 50px; text-align: center; }
.section-head p { font-size: 1.05rem; }

.cards { display: grid; gap: 24px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.icon { font-size: 1.8rem; width: 56px; height: 56px; display: grid; place-items: center; background: #e5eeff; border-radius: 12px; margin-bottom: 18px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: #fff; border-radius: var(--radius); padding: 26px; border-left: 4px solid var(--blue); }

.status-pill {
  display: inline-block; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  background: #fff2d9; color: #a36300; padding: 5px 12px; border-radius: 20px; margin-bottom: 14px;
}
.status-dev { background: rgba(18,194,163,.15); color: var(--teal); margin: 8px 0 22px; }
.card-status { border-top: 4px solid var(--teal); }
.fine-print { text-align: center; font-size: .88rem; margin-top: 26px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split p { margin-bottom: 16px; }
.bullets { list-style: none; margin: 10px 0 10px; }
.bullets li { padding-left: 28px; position: relative; margin-bottom: 10px; }
.bullets li::before { content: "\2713"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }

/* Schedule mock */
.schedule-mock { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); padding: 16px; }
.sched-head { display: grid; grid-template-columns: repeat(5, 1fr); text-align: center; color: #c3cfe2; font-size: .8rem; font-weight: 600; margin-bottom: 10px; }
.sched-body { display: grid; grid-template-columns: repeat(5, 1fr); grid-template-rows: repeat(6, 38px); gap: 6px; }
.slot { border-radius: 8px; padding: 6px 8px; font-size: .75rem; color: #fff; font-weight: 600; line-height: 1.3; }
.slot small { font-weight: 400; opacity: .85; }
.s1 { grid-column: 1; grid-row: 1 / 3; background: var(--blue); }
.s2 { grid-column: 2; grid-row: 2 / 4; background: var(--teal); }
.s3 { grid-column: 3; grid-row: 4 / 7; background: #7a5cff; }
.s4 { grid-column: 4; grid-row: 3 / 6; background: #ff8a3d; }
.s5 { grid-column: 5; grid-row: 1 / 4; background: #2eb5e8; }

/* About stats */
.stat-box { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-box div { background: var(--bg-alt); border-radius: var(--radius); padding: 24px; }
.stat-box strong { display: block; font-size: 1.4rem; color: var(--navy); }
.stat-box span { color: var(--muted); font-size: .92rem; }

/* Form */
.demo-form { background: #fff; padding: 34px; border-radius: var(--radius); box-shadow: var(--shadow); display: grid; gap: 16px; }
.demo-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.demo-form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; color: var(--navy); }
.demo-form input, .demo-form select, .demo-form textarea {
  font: inherit; font-weight: 400; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
.demo-form input:focus, .demo-form select:focus, .demo-form textarea:focus { outline: 2px solid var(--blue); border-color: transparent; }
.demo-form .invalid { border-color: #e0413a; }
.form-note { text-align: center; font-size: .92rem; min-height: 1.4em; }
.form-note.ok { color: #0f8a55; }
.form-note.err { color: #e0413a; }

/* Footer */
.site-footer { background: var(--navy); color: #c3cfe2; padding: 60px 0 0; }
.site-footer p { color: #93a3bb; margin-top: 12px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-grid h4 { color: #fff; margin-bottom: 12px; }
.footer-grid a:not(.logo) { display: block; color: #c3cfe2; margin-bottom: 8px; font-size: .95rem; overflow-wrap: anywhere; }
.footer-grid a:not(.logo):hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding: 20px 0; font-size: .85rem; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .cards-3, .feature-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 10px 16px 20px; gap: 0; display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav .btn { margin-top: 14px; text-align: center; }
}
@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .hero { padding: 50px 0 60px; }
  .cards-3, .cards-2, .feature-grid, .demo-form .row, .stat-box, .footer-grid { grid-template-columns: 1fr; }
  .demo-form { padding: 22px; }
  .hero-actions .btn { width: 100%; text-align: center; }
}

/* Command Center modules + contact */
.modules-head { margin-top: 70px; margin-bottom: 30px; }
.module { border-top: 4px solid var(--blue); }
.module .bullets { margin-top: 14px; }
.module .bullets li { color: var(--muted); }
.contact-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 24px; margin-top: 18px; font-weight: 600; color: var(--navy); }
.contact-row a, .contact-row span { color: var(--navy); }
.contact-row a:hover { color: var(--blue); }
.site-footer address { font-style: normal; color: #c3cfe2; font-size: .95rem; }