/* ========== Base ========== */
:root{
  --navy-900:#131D44;
  --navy-850:#0F1F4C;
  --navy-800:#132462;
  --navy-700:#1D3172;
  --ink:#0D1020;
  --muted:#AEB9DD;
  --muted-2:#C9D2F2;
  --bg:#F6F8F9;
  --btn:#2F80ED;
  --btn-hover:#256FCE;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:10px;
  --shadow: 0 16px 40px rgba(0,0,0,.25);
  --container: 1180px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:#fff;
  background: var(--navy-850);
  line-height:1.6;
}

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

.container{
  width:min(var(--container), calc(100% - 48px));
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:16px;
  padding:10px 14px;
  background:#fff;
  color:#000;
  border-radius:10px;
  z-index:1000;
}
.skip-link:focus{ left:16px; }

.section{ padding: 88px 0; }

/* ========== Typography ========== */
.h1, .h2{
  font-family: "Playfair Display", Georgia, serif;
  margin:0 0 18px;
  letter-spacing: -0.02em;
}
.h1{ font-size: clamp(44px, 4.2vw, 72px); line-height: 1.04; }
.h2{ font-size: clamp(34px, 3.1vw, 52px); line-height: 1.12; }
.h3{ font-size: 26px; line-height: 1.2; margin: 0 0 10px; }

.lead{
  max-width: 520px;
  margin: 0 0 28px;
  color: rgba(255,255,255,.90);
  font-size: 15px;
}
.eyebrow{
  margin:0 0 10px;
  color: rgba(47,128,237,.95);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.center{ text-align:center; }
.dark{ color: var(--ink); }
.mt-xl{ margin-top: 30px; }

/* ========== Header ========== */
.site-header{
  position: sticky;
  top:0;
  z-index: 50;
  background: rgba(19,36,98,.65);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height: 76px;
}

/* --- MOBILE MENU (WORKING: details/summary) --- */
/* Use with:
   <details class="mobile-nav">
     <summary class="nav-toggle">...</summary>
     <div class="mobile-nav__panel">...</div>
   </details>
*/
.mobile-nav{
  display:none;            /* enabled only on mobile */
  position: relative;
}

/* remove default marker */
.mobile-nav > summary{ list-style:none; }
.mobile-nav > summary::-webkit-details-marker{ display:none; }

/* Toggle button (works for <summary> or <button>) */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:0;
  background:transparent;
  padding: 10px 8px;
  border-radius: 10px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle:focus-visible{
  outline: 3px solid rgba(255,255,255,.60);
  outline-offset: 3px;
}

.nav-toggle__icon{
  width: 22px;
  height: 14px;
  display:block;
  position: relative;
}

/* hamburger lines */
.nav-toggle__icon:before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height: 2px;
  background: rgba(255,255,255,.92);
  border-radius: 999px;
  box-shadow:
    0 6px 0 rgba(255,255,255,.92),
    0 12px 0 rgba(255,255,255,.92);
}

/* Mobile dropdown panel */
.mobile-nav__panel{
  position: fixed;
  left: 0;
  right: 0;
  top: 64px; /* sync with mobile header height */
  padding: 18px 24px 20px;

  background: rgba(19,36,98,.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.10);
  z-index: 999;

  /* closed state */
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}

.mobile-nav[open] .mobile-nav__panel{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav__links{
  display:flex;
  flex-direction:column;
  gap: 14px;
}

.mobile-nav__links a{
  color: rgba(255,255,255,.92);
  text-decoration:none;
  font-weight: 600;
  font-size: 16px;
}
.mobile-nav__links a:hover{
  color:#fff;
  text-decoration: underline;
  text-underline-offset: 6px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap: 12px;
  text-decoration:none;
  color:#fff;
  font-weight:600;
  letter-spacing: .01em;
}
.brand-logo{ display:block; height: 36px; width: auto; }

/* Desktop nav */
.nav,
.nav--desktop{
  display:flex;
  gap: 28px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.nav a,
.nav--desktop a{
  color: rgba(255,255,255,.92);
  text-decoration:none;
  font-weight: 600;
  font-size: 16px;
}
.nav a:hover,
.nav--desktop a:hover{ color:#fff; text-decoration: underline; text-underline-offset: 6px; }

/* ========== Buttons ========== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  border:0;
  cursor:pointer;
  font-weight: 600;
  color:#fff;
  background: var(--btn);
  padding: 14px 28px;
  border-radius: 999px;
  min-height: 54px;
  box-shadow: 0 18px 46px rgba(47,128,237,.30);
}
.btn:hover{ background: var(--btn-hover); }
.btn:focus-visible{
  outline: 3px solid rgba(255,255,255,.75);
  outline-offset: 3px;
}

/* ========== Media helpers ========== */
.img-cover{ width:100%; height:100%; object-fit: cover; }
.card-media{
  border-radius: var(--radius-xl);
  overflow:hidden;
  background: rgba(255,255,255,.06);
  box-shadow: var(--shadow);
}

/* ========== Hero ========== */
.hero{
  background:
    radial-gradient(950px 520px at 76% 44%, rgba(255,255,255,.09) 0%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, var(--navy-800) 0%, var(--navy-850) 100%);
  padding-top: 64px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 42px;
  align-items:center;
  min-height: 520px;
}
.hero-media{
  min-height: 340px;
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
  border-radius: 0;
  overflow: visible;
}
.hero-media .img-cover{ display:block; width:100%; height:100%; }

/* ========== Problem ========== */
.problem{ background: var(--navy-800); }
.problem-grid{
  margin-top: 34px;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 54px;
  align-items:center;
}
.problem-copy p{
  margin: 0 0 18px;
  color: rgba(255,255,255,.70);
  max-width: 520px;
}
.quote{
  margin: 64px auto 0;
  max-width: 980px;
  text-align:center;
  font-size: clamp(22px, 2.1vw, 34px);
  line-height: 1.75;
  color: rgba(255,255,255,.92);
}

/* ========== Advantage ========== */
.advantage{ background: var(--navy-800); padding-top: 58px; }
.features-grid{
  margin-top: 44px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.feature-card{
  border-radius: var(--radius-xl);
  overflow:hidden;
  box-shadow: var(--shadow);
}
.feature-media{ height: 320px; }
.feature-body{ padding: 22px 24px 26px; }
.feature-card--light{ background:#fff; }
.feature-card--cream{ background:#ECEEE6; }

.feature-banner{
  margin-top: 22px;
  border-radius: var(--radius-xl);
  overflow:hidden;
  height: 170px;
  position: relative;
  box-shadow: var(--shadow);
  background: #2b0b16;
}
.feature-banner__media{
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 240px at 82% 50%, rgba(79,233,255,.35) 0%, rgba(79,233,255,0) 60%),
    radial-gradient(700px 240px at 65% 40%, rgba(47,128,237,.25) 0%, rgba(47,128,237,0) 60%),
    linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.18) 55%, rgba(0,0,0,0) 100%),
    url("assets/asset-precision.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}
.feature-banner__content{ position:relative; padding: 34px 34px; max-width: 620px; }
.feature-banner .h3{ margin-bottom: 10px; }

/* ========== Software ========== */
.software{ background: var(--navy-800); }
.dx-grid{
  margin-top: 44px;
  background: rgba(255,255,255,.05);
  border-radius: var(--radius-xl);
  padding: 0;
  overflow:hidden;
  display:grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 280px 280px 280px;
}
.dx-tile{
  position:relative;
  background: var(--navy-700);
  border: 1px solid rgba(255,255,255,.05);
}
.dx-img{ overflow:hidden; }
.dx-card{
  padding: 44px 52px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap: 14px;
  background: rgba(29,49,114,.85);
}
.dx-card p{ margin:0; color: rgba(255,255,255,.78); }

.dx-icon{
  width: 28px;
  height: 18px;
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(79,233,255,.95), rgba(47,128,237,.95));
  box-shadow: 0 14px 32px rgba(47,128,237,.20);
}
.dx-icon--spark{
  width: 18px;
  height: 18px;
  transform: rotate(45deg);
  border-radius: 3px;
}
.dx-icon--report{
  width: 20px;
  height: 20px;
  border-radius: 5px;
  position: relative;
}
.dx-icon--report:after{
  content:"";
  position:absolute;
  left: 6px;
  top: 4px;
  width: 8px;
  height: 12px;
  background: rgba(13,16,32,.45);
  border-radius: 2px;
}

/* ========== Value ========== */
.value{
  background: var(--bg);
  color: var(--ink);
  padding-bottom: 0;
}
.value-grid{
  margin-top: 38px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 56px;
  padding-bottom: 42px;
}
.value-title{ margin:0 0 12px; font-size: 24px; font-weight: 700; }
.value-item p{ margin:0; color: rgba(13,16,32,.68); max-width: 340px; }

.value-banner{
  height: 640px;
  overflow: hidden;
}
.value-banner img{ width:100%; height:100%; object-fit: cover; }

/* ========== Numbers ========== */
.numbers{ background: var(--navy-800); }
.numbers-grid{
  margin-top: 44px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px 60px;
  text-align:center;
}
.stat-kpi{ font-weight: 700; font-size: 34px; margin-bottom: 10px; }
.stat-copy{
  margin:0 auto;
  max-width: 320px;
  color: rgba(255,255,255,.72);
  font-size: 14px;
}

/* ========== Contact ========== */
.contact{
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-900) 100%);
  padding-top: 92px;
}
.contact-grid{
  display:grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 52px;
  align-items:start;
}
.form{ margin-top: 26px; }
.form-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
}
.field{
  display:flex;
  flex-direction:column;
  gap: 10px;
  margin-bottom: 22px;
}
label{ font-weight: 600; color: rgba(255,255,255,.92); }
input, textarea{
  width: 100%;
  border: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.05);
  color: #fff;
  border-radius: 6px;
  padding: 14px 14px;
  outline:none;
}
input{ height: 52px; }
textarea{ resize: vertical; min-height: 140px; }
input:focus, textarea:focus{
  border-color: rgba(47,128,237,.60);
  box-shadow: 0 0 0 3px rgba(47,128,237,.18);
}

.btn-submit{ width: min(560px, 100%); margin-top: 10px; height: 58px; }
.contact-media{
  border-radius: var(--radius-xl);
  overflow:hidden;
  box-shadow: var(--shadow);
  background: rgba(255,255,255,.06);
  min-height: 420px;
}

/* ========== Footer ========== */
.divider{
  border: none;
  border-top: 1px solid rgba(255,255,255,.18);
  margin: 64px 0 0;
}
.footer{
  padding: 38px 0 20px;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 40px;
}
.footer-cols{ display:flex; gap: 68px; flex-wrap:wrap; }
.footer-title{ font-weight: 700; margin-bottom: 10px; }
.footer-value,
.footer-value a{ color: rgba(255,255,255,.72); text-decoration:none; }
.footer-value a:hover{ text-decoration: underline; text-underline-offset: 5px; }

/* ========== Existing responsive (kept for tablet) ========== */
@media (max-width: 980px){
  .hero-grid, .problem-grid, .contact-grid{ grid-template-columns: 1fr; }
  .features-grid{ grid-template-columns: 1fr; }
  .dx-grid{ grid-template-columns: 1fr; grid-template-rows: repeat(6, 240px); }
  .dx-card{ padding: 34px 28px; }
  .value-grid{ grid-template-columns: 1fr; }
  .numbers-grid{ grid-template-columns: 1fr; }
  .footer{ flex-direction:column; }
  .footer-cols{ gap: 26px 40px; }
}

/* ========== MOBILE REFACTOR (Design-matching + working menu) ========== */
@media (max-width: 600px){
  /* tighter, design-like gutters */
  .container{ width: calc(100% - 48px); }

  .section{ padding: 72px 0; }

  /* header: hamburger + logo */
  .header-inner{
    justify-content:flex-start;
    gap: 14px;
    min-height: 64px;
  }

  /* show working mobile menu */
  .mobile-nav{ display:block; }

  /* hide ONLY the header's desktop nav (safe) */
  .header-inner > .nav,
  .header-inner > .nav--desktop{ display:none; }

  /* hero: stacked, centered button, device image aligned right */
  .hero{ padding-top: 34px; }
  .hero-grid{
    grid-template-columns: 1fr;
    gap: 18px;
    min-height: unset;
  }
  .hero-copy{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
  }
  .hero-copy .btn{ align-self:center; }

  .hero-media{
    min-height: unset;
    display:flex;
    justify-content:flex-end;
    margin-top: 10px;
  }
  .hero-media img{
    height: auto;
    width: min(420px, 96%);
    max-width: 96%;
    transform: translateX(10px);
  }

  /* Problem: tighter spacing like design */
  .problem-grid{ gap: 22px; margin-top: 22px; }
  .quote{ margin-top: 38px; }

  /* Feature cards: reduce media heights for mobile */
  .feature-media{ height: 230px; }
  .feature-body{ padding: 18px 18px 22px; }
  .feature-banner{ height: 150px; }

  /* Software: full-bleed images, taller rows, remove rounded container */
  .dx-grid{
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    border-radius: 0;
    background: transparent;
    overflow: visible;
    display:flex;
    flex-direction:column;
    gap: 0;
  }
  .dx-tile{
    border: 0;
    border-top: 1px solid rgba(255,255,255,.06);
  }
  .dx-tile:first-child{ border-top: 0; }
  .dx-img{ height: 320px; }
  .dx-card{
    padding: 28px 24px;
    background: rgba(29,49,114,.92);
  }

  /* Value: keep list compact + full-bleed banner image shorter (matches design) */
  .value-grid{ gap: 20px; padding-bottom: 28px; }
  .value-item p{ max-width: none; }
  .value-banner{
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    height: 260px;
  }

  /* Numbers: show 4 stats like design */
  .numbers-grid{ gap: 26px; }
  .numbers-grid .stat:nth-child(n+5){ display:none; }

  /* Contact: keep 2-column rows on mobile, reduce gaps */
  .contact{ padding-top: 72px; }
  .form-row{ grid-template-columns: 1fr 1fr; gap: 14px; }
  .field{ margin-bottom: 16px; }
  .btn-submit{ height: 54px; }

  /* Contact image below form */
  .contact-grid{ gap: 28px; }

  /* Footer spacing */
  .divider{ margin-top: 44px; }
}

/* reduce motion */
@media (prefers-reduced-motion: reduce){
  .mobile-nav__panel{ transition:none; }
}