:root {
    --c-primary:   #003372;
    --c-primary-m: #00429a;
    --c-primary-l: #0055c8;
    --c-accent:    #22c55e;
    --c-accent-d:  #16a34a;
    --c-dark:      #0a0f1e;
    --c-gray:      #f1f5f9;
    --c-text:      #334155;
    --c-muted:     #64748b;
  }
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { font-family: 'Inter', system-ui, sans-serif; color: var(--c-text); background: #fff; }

  /* ── Navbar ─────────────────────────────────────── */
  #navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    transition: background .3s, box-shadow .3s, padding .3s;
    padding: 1rem 0;
  }
  #navbar.scrolled { background: #fff; box-shadow: 0 1px 20px rgba(0,0,0,.08); padding: .6rem 0; }
  .navbar-logo-icon { height: 34px; width: 34px; }
  .navbar-brand-text { font-size: 1.05rem; font-weight: 800; color: #fff; margin-left: .6rem; transition: color .2s; }
  .navbar-brand-text b { color: var(--c-accent); font-weight: 800; }
  #navbar.scrolled .navbar-brand-text { color: var(--c-primary); }
  .nav-link { color: rgba(255,255,255,.88) !important; font-weight: 500; font-size: .925rem; transition: color .2s; }
  .nav-link:hover { color: #fff !important; }
  #navbar.scrolled .nav-link { color: var(--c-primary) !important; }
  #navbar.scrolled .nav-link:hover { color: var(--c-primary-l) !important; }
  .btn-nav-login {
    background: var(--c-accent); color: #fff; border: none;
    padding: .45rem 1.25rem; border-radius: 8px;
    font-weight: 600; font-size: .9rem;
    transition: background .2s, transform .15s;
  }
  .btn-nav-login:hover { background: var(--c-accent-d); color: #fff; transform: translateY(-1px); }
  .navbar-toggler-icon-custom {
    display: inline-block; width: 22px; height: 2px;
    background: #fff; position: relative;
    box-shadow: 0 6px 0 #fff, 0 -6px 0 #fff;
  }
  #navbar.scrolled .navbar-toggler-icon-custom,
  #navbar.scrolled .navbar-toggler-icon-custom::before,
  #navbar.scrolled .navbar-toggler-icon-custom::after {
    background: var(--c-primary);
    box-shadow: 0 6px 0 var(--c-primary), 0 -6px 0 var(--c-primary);
  }

  /* ── Hero ─────────────────────────────────────── */
  #hero {
    min-height: 100vh;
    background:
      radial-gradient(ellipse 900px 600px at 15% 20%, rgba(0,85,200,.35) 0%, transparent 60%),
      linear-gradient(120deg, #0a0f1e 0%, #00265c 55%, #003372 100%);
    display: flex; align-items: center;
    padding: 7rem 0 5rem;
  }
  .hero-badge {
    display: inline-flex; align-items: center; gap: .5rem;
    background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.35);
    color: #86efac; padding: .4rem 1rem; border-radius: 100px;
    font-size: .78rem; font-weight: 700; letter-spacing: .04em;
    text-transform: uppercase; margin-bottom: 1.75rem;
  }
  .hero-title {
    font-size: clamp(2rem, 5.5vw, 3.5rem);
    font-weight: 800; color: #fff; line-height: 1.12;
    letter-spacing: -.5px; margin-bottom: 1.25rem;
  }
  .hero-title em { color: var(--c-accent); font-style: normal; }
  .hero-sub {
    font-size: 1.1rem; color: rgba(255,255,255,.75);
    max-width: 520px; line-height: 1.75; margin-bottom: 2.5rem;
  }
  .btn-primary-cta {
    display: inline-flex; align-items: center; gap: .5rem;
    background: var(--c-accent); color: #fff; border: none;
    padding: .9rem 2rem; border-radius: 10px;
    font-weight: 700; font-size: 1rem;
    transition: background .2s, transform .15s, box-shadow .2s;
    box-shadow: 0 4px 24px rgba(34,197,94,.4);
    text-decoration: none;
  }
  .btn-primary-cta:hover { background: var(--c-accent-d); transform: translateY(-2px); color: #fff; }
  .btn-outline-cta {
    display: inline-flex; align-items: center; gap: .5rem;
    background: rgba(255,255,255,.08); color: #fff;
    border: 1.5px solid rgba(255,255,255,.35);
    padding: .9rem 2rem; border-radius: 10px;
    font-weight: 600; font-size: 1rem;
    transition: border-color .2s, background .2s, transform .15s;
    text-decoration: none;
  }
  .btn-outline-cta:hover { border-color: rgba(255,255,255,.7); background: rgba(255,255,255,.14); transform: translateY(-2px); color: #fff; }

  /* ── Hero call-flow mockup (CSS only, no stock photo) ── */
  .mock-phone {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.15);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-radius: 20px; padding: 1.5rem;
  }
  .mock-row {
    display: flex; align-items: center; gap: .75rem;
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
    border-radius: 12px; padding: .75rem .9rem; margin-bottom: .6rem;
  }
  .mock-row:last-child { margin-bottom: 0; }
  .mock-icon {
    width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: .85rem; color: #fff;
  }
  .mock-title { font-size: .85rem; font-weight: 700; color: #fff; margin: 0; }
  .mock-sub { font-size: .74rem; color: rgba(255,255,255,.5); margin: 0; }
  .mock-badge {
    margin-left: auto; font-size: .68rem; font-weight: 700; padding: .25rem .55rem;
    border-radius: 100px; white-space: nowrap;
  }
  .mock-badge.pending  { background: rgba(245,158,11,.18); color: #fbbf24; }
  .mock-badge.accepted { background: rgba(34,197,94,.18); color: #4ade80; }
  .mock-badge.done     { background: rgba(148,163,184,.18); color: #cbd5e1; }
  .mi-amber { background: linear-gradient(135deg,#b45309,#f59e0b); }
  .mi-navy  { background: linear-gradient(135deg,#003372,#0055c8); }
  .mi-green { background: linear-gradient(135deg,#16a34a,#22c55e); }

  /* ── Stats strip (gerçek özellikler — uydurma sayı yok) ── */
  #stats { background: var(--c-primary); padding: 2.25rem 0; }
  .stat-item { text-align: center; }
  .stat-num { font-size: 1.7rem; font-weight: 800; color: #fff; line-height: 1; }
  .stat-label { font-size: .82rem; color: rgba(255,255,255,.55); margin-top: .4rem; font-weight: 500; }
  .stat-sep { border-left: 1px solid rgba(255,255,255,.15); }

  /* ── Section commons ──────────────────────────── */
  .section-badge {
    display: inline-block;
    background: rgba(0,51,114,.07); color: var(--c-primary);
    font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
    padding: .35rem 1rem; border-radius: 100px; margin-bottom: 1rem;
  }
  .section-title { font-size: clamp(1.65rem, 3vw, 2.3rem); font-weight: 800; color: var(--c-dark); letter-spacing: -.3px; }
  .section-sub { font-size: 1.05rem; color: var(--c-muted); max-width: 560px; margin: 0 auto; line-height: 1.7; }

  /* ── Feature cards ────────────────────────────── */
  #features { padding: 6rem 0; }
  .feature-card {
    background: #fff; border: 1px solid #e2e8f0;
    border-radius: 16px; padding: 2rem; height: 100%;
    transition: transform .22s, box-shadow .22s, border-color .22s;
  }
  .feature-card:hover { transform: translateY(-5px); box-shadow: 0 16px 48px rgba(0,51,114,.1); border-color: rgba(0,51,114,.2); }
  .feature-icon {
    width: 68px; height: 68px; border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.75rem; margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(0,0,0,.1);
  }
  .fi-navy   { background: linear-gradient(135deg, #003372 0%, #0055c8 100%); color: #fff; }
  .fi-green  { background: linear-gradient(135deg, #16a34a 0%, #22c55e 100%); color: #fff; }
  .fi-indigo { background: linear-gradient(135deg, #4f46e5 0%, #818cf8 100%); color: #fff; }
  .fi-amber  { background: linear-gradient(135deg, #b45309 0%, #f59e0b 100%); color: #fff; }
  .feature-card h5 { font-size: 1rem; font-weight: 700; color: var(--c-dark); margin-bottom: .6rem; }
  .feature-card p  { font-size: .9rem; color: var(--c-muted); line-height: 1.65; margin: 0; }

  /* ── How it works ─────────────────────────────── */
  #how { background: var(--c-gray); padding: 6rem 0; }
  .step-num {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--c-primary); color: #fff;
    font-size: 1.3rem; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: 0 6px 20px rgba(0,51,114,.35);
  }
  .step-connector {
    position: absolute; top: 28px;
    left: calc(50% + 28px); right: calc(-50% + 28px);
    border-top: 2px dashed #cbd5e1; z-index: 0;
  }
  .step-card { position: relative; text-align: center; padding: 0 1.25rem; }
  .step-card h5 { font-size: 1rem; font-weight: 700; color: var(--c-dark); margin-bottom: .5rem; }
  .step-card p  { font-size: .88rem; color: var(--c-muted); line-height: 1.65; }

  /* ── Panel showcase (CSS mockup, gerçek ekran görüntüsü yok) ── */
  #panel { padding: 6rem 0; }
  .panel-mock {
    background: var(--c-dark); border-radius: 20px; padding: 1.5rem;
    box-shadow: 0 32px 80px rgba(0,0,0,.18);
  }
  .panel-mock .pm-head { display: flex; align-items: center; gap: .5rem; margin-bottom: 1rem; }
  .panel-mock .pm-dot { width: 10px; height: 10px; border-radius: 50%; }
  .panel-mock .dot-red   { background: #ef4444; }
  .panel-mock .dot-amber { background: #f59e0b; }
  .panel-mock .dot-green { background: #22c55e; }
  .panel-mock .pm-label { color: rgba(255,255,255,.4); font-size: .75rem; margin-left: .5rem; }
  .footer-icon { height: 26px; width: 26px; }
  .panel-row {
    display: flex; align-items: center; gap: .75rem;
    background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
    border-radius: 10px; padding: .7rem .9rem; margin-bottom: .55rem;
  }
  .panel-row .pr-table { font-size: .82rem; font-weight: 700; color: #fff; min-width: 64px; }
  .panel-row .pr-type { font-size: .78rem; color: rgba(255,255,255,.55); flex: 1; }
  .panel-row .pr-time { font-size: .74rem; color: rgba(255,255,255,.4); }
  .check-item { display: flex; align-items: flex-start; gap: .75rem; margin-bottom: 1rem; }
  .check-icon {
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--c-accent); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: .6rem; flex-shrink: 0; margin-top: .15rem;
  }
  .check-item p { font-size: .95rem; color: var(--c-text); margin: 0; line-height: 1.6; }
  .check-item strong { color: var(--c-dark); }

  /* ── Use cases ─────────────────────────────────── */
  #usecases { background: var(--c-gray); padding: 6rem 0; }
  .uc-card {
    background: #fff; border-radius: 12px; border: 1px solid #e2e8f0;
    padding: 1.5rem 1.25rem; text-align: center; height: 100%;
  }
  .uc-card i { font-size: 1.6rem; color: var(--c-primary); margin-bottom: .9rem; display: block; }
  .uc-card .uc-name { font-size: .95rem; font-weight: 700; color: var(--c-dark); margin-bottom: .3rem; }
  .uc-card .uc-desc { font-size: .8rem; color: var(--c-muted); margin: 0; line-height: 1.5; }

  /* ── Trust / neden section (yerine göre değişen sahte referans yok) ── */
  #trust { padding: 5rem 0; border-top: 1px solid #e2e8f0; }
  .trust-card { text-align: center; padding: 1rem; }
  .trust-card i { font-size: 1.5rem; color: var(--c-accent-d); margin-bottom: .75rem; display: block; }
  .trust-card h6 { font-size: .92rem; font-weight: 700; color: var(--c-dark); margin-bottom: .35rem; }
  .trust-card p { font-size: .82rem; color: var(--c-muted); margin: 0; line-height: 1.55; }

  /* ── Contact ─────────────────────────────────── */
  #contact { padding: 6rem 0; background: #fff; border-top: 1px solid #e2e8f0; }
  .contact-card {
    background: var(--c-gray); border-radius: 16px;
    padding: 2.25rem 2rem; height: 100%;
    display: flex; flex-direction: column; gap: .25rem;
  }
  .contact-card .cc-icon {
    width: 56px; height: 56px; border-radius: 14px;
    background: linear-gradient(135deg, #003372 0%, #0055c8 100%);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; margin-bottom: 1.5rem; flex-shrink: 0;
  }
  .contact-card h6 { font-size: .72rem; font-weight: 700; color: var(--c-muted); letter-spacing: .09em; text-transform: uppercase; margin-bottom: .25rem; }
  .contact-card .cc-title { font-size: 1.05rem; font-weight: 700; color: var(--c-dark); margin-bottom: 1rem; }
  .contact-card p { font-size: .88rem; color: var(--c-text); line-height: 1.7; margin-bottom: 1rem; }
  .contact-card a {
    font-size: .88rem; color: var(--c-text); line-height: 1.5;
    text-decoration: none; display: flex; align-items: center; gap: .45rem;
    padding: .45rem 0; border-top: 1px solid #e2e8f0;
  }
  .contact-card a i { font-size: .85rem; color: var(--c-primary); width: 16px; text-align: center; flex-shrink: 0; }
  .contact-card a:hover { color: var(--c-primary); }

  /* ── CTA ──────────────────────────────────────── */
  #cta {
    background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-primary) 100%);
    padding: 6rem 0; text-align: center;
    position: relative; overflow: hidden;
  }
  #cta::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(34,197,94,.12) 0%, transparent 70%);
  }
  #cta h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; color: #fff; letter-spacing: -.3px; position: relative; }
  #cta p  { color: rgba(255,255,255,.6); font-size: 1.05rem; max-width: 480px; margin: 1rem auto 2.5rem; position: relative; }

  /* ── Footer ───────────────────────────────────── */
  #footer { background: var(--c-dark); padding: 2.5rem 0; }
  #footer .footer-brand { display: flex; align-items: center; gap: .6rem; }
  #footer .footer-brand span { color: #fff; font-weight: 800; font-size: 1rem; }
  #footer .footer-brand span b { color: var(--c-accent); }
  #footer .copy { color: rgba(255,255,255,.35); font-size: .82rem; }
  .footer-link { color: rgba(255,255,255,.4); font-size: .82rem; text-decoration: none; transition: color .2s; }
  .footer-link:hover { color: rgba(255,255,255,.85); }

  /* ── Responsive ───────────────────────────────── */
  @media (max-width: 767.98px) {
    .step-connector { display: none; }
    #hero { padding: 8rem 0 4rem; min-height: auto; }
    .hero-cards { margin-top: 3rem; }
  }