:root {
  --color-primary: #1B3E8F;
  --color-primary-dark: #122A63;
  --color-primary-light: #EAF0FF;
  --color-accent: #0EA5A6;
  --color-dark: #0F172A;
  --color-text: #334155;
  --color-muted: #64748B;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-border: #E2E8F0;
  --radius: 14px;
  --container-w: 1160px;
  --font: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}
h1, h2, h3, h4 { color: var(--color-dark); line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
a { color: var(--color-primary); text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: .6em;
}

.capability-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 14px;
}
.capability-list li {
  position: relative;
  padding-left: 24px;
  font-size: .88rem;
  color: var(--color-text);
  line-height: 1.45;
}
.capability-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: .68rem;
  font-weight: 800;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  white-space: nowrap;
  gap: .5em;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { background: transparent; border-color: var(--color-border); color: var(--color-dark); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { 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(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 12px;
  min-height: 72px;
  padding-top: 8px;
  padding-bottom: 8px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-dark);
  white-space: nowrap;
}
.main-nav { display: flex; gap: 22px; }
.main-nav a { color: var(--color-text); font-weight: 500; font-size: .93rem; white-space: nowrap; }
.main-nav a:hover { color: var(--color-primary); }
.nav-doc-link { display: none; }
.header-actions { display: flex; align-items: center; flex-shrink: 0; gap: 12px; }
.btn-doc { white-space: nowrap; }
.nav-toggle {
  display: none;
  flex-direction: column;
  flex-shrink: 0;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--color-dark); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--color-primary-light), #fff 70%);
  padding: 72px 0;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
}
.hero-text p { color: var(--color-muted); font-size: 1.05rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 24px 0; }
.hero-highlights { display: flex; gap: 22px; flex-wrap: wrap; }
.hero-highlights li {
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-dark);
  padding-left: 20px;
  position: relative;
}
.hero-highlights li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}
.mock-panel-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  box-shadow: 0 32px 64px -28px rgba(15, 23, 42, .28), 0 10px 24px -16px rgba(15, 23, 42, .15);
  padding: 22px 22px 20px;
}
.mock-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(14,165,166,.1);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.mock-live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: mock-pulse 1.6s ease-in-out infinite;
}
@keyframes mock-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.7); }
}
.mock-rows {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.mock-rows::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 26px;
  bottom: 26px;
  width: 2px;
  background: var(--color-border);
}
.mock-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
}
.mock-icon {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.mock-icon svg { width: 18px; height: 18px; }
.mock-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.mock-text strong { font-size: .92rem; font-weight: 700; color: var(--color-dark); }
.mock-text em {
  font-style: normal;
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-accent);
}

/* Section shared */
section { padding: 80px 0; }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head p { color: var(--color-muted); }
.roles, .integrations, .advantages { background: var(--color-bg-alt); }

/* Flow */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.flow-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
.flow-card:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -26px;
  top: 32px;
  color: var(--color-border);
  font-size: 1.4rem;
}
.flow-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  margin-bottom: 12px;
}
.flow-card p { color: var(--color-muted); font-size: .88rem; margin: 0; }

/* Roles */
.role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 20px;
}
.role-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  border-top: 3px solid var(--color-primary);
  transition: transform .18s ease, box-shadow .18s ease;
}
.role-card:hover { transform: translateY(-4px); box-shadow: 0 20px 36px -24px rgba(15, 23, 42, .3); }
.role-card p { color: var(--color-muted); margin: 0; font-size: .92rem; }
.role-note {
  text-align: center;
  color: var(--color-muted);
  font-size: .9rem;
  margin: 32px 0 0;
}

/* Portal */
.portal { background: var(--color-primary-light); }
.portal .section-head { max-width: 720px; }
.portal .section-head blockquote {
  margin: 20px auto 0;
  max-width: 560px;
  padding: 16px 22px;
  border-left: 4px solid var(--color-primary);
  background: #fff;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-dark);
  font-weight: 600;
  text-align: left;
}
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.portal-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}
.portal-card h3 { color: var(--color-primary); }

/* Scenarios */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 20px;
}
.scenario-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.scenario-card p {
  margin: 0;
  font-style: italic;
  color: var(--color-dark);
  font-weight: 600;
  font-size: .95rem;
}

/* Modules */
.module-group { margin-bottom: 44px; }
.module-group:last-child { margin-bottom: 0; }
.module-group-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--color-primary);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 20px;
}
.module-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease;
}
.module-card:hover { transform: translateY(-4px); box-shadow: 0 20px 36px -24px rgba(15, 23, 42, .3); }
.module-no {
  display: inline-block;
  font-size: .78rem;
  font-weight: 800;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.module-card p { color: var(--color-muted); font-size: .9rem; margin-bottom: 0; }

/* Integrations */
.integration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.integration-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  border-top: 4px solid var(--color-accent);
}
.integration-card p { color: var(--color-muted); margin: 0; font-size: .92rem; }

/* Advantages */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.advantage-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.advantage-card:hover { transform: translateY(-4px); box-shadow: 0 20px 36px -24px rgba(15, 23, 42, .3); }
.advantage-card p { color: var(--color-muted); margin: 0; font-size: .88rem; }

/* Demo */
.demo { background: var(--color-dark); color: #fff; }
.demo .eyebrow { color: #93A3FF; }
.demo h2 { color: #fff; }
.demo-text p { color: #CBD5E1; }
.demo-alt a { color: #93A3FF; font-weight: 600; }
.demo-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.demo-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 14px;
}
.form-row { display: grid; gap: 6px; }
.form-row label { font-size: .85rem; font-weight: 600; color: var(--color-dark); }
.form-row input, .form-row select, .form-row textarea {
  font: inherit;
  padding: 11px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
.form-alert {
  padding: 12px 14px;
  border-radius: 8px;
  font-size: .88rem;
  font-weight: 600;
}
.form-alert-success { background: #ECFDF5; color: #047857; }
.form-alert-error { background: #FEF2F2; color: #B91C1C; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.contact-card {
  display: block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.contact-card h3 { margin-bottom: 6px; }
.contact-card p { color: var(--color-muted); margin: 0; }

/* Footer */
.site-footer { background: var(--color-dark); color: #CBD5E1; padding: 56px 0 0; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.site-footer .logo { color: #fff; }
.footer-brand p { color: #94A3B8; font-size: .9rem; max-width: 320px; }
.social-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  color: #CBD5E1;
  transition: background .15s ease, color .15s ease;
}
.social-links a:hover { background: var(--color-primary); color: #fff; }
.footer-col h4 { color: #fff; font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 14px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: #CBD5E1; font-size: .92rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom { padding: 20px 24px; font-size: .82rem; color: #64748B; }

/* Blog */
.page-hero { background: var(--color-bg-alt); padding: 56px 0 40px; text-align: center; }
.page-hero h1 { margin-bottom: .3em; }
.page-hero p { color: var(--color-muted); max-width: 640px; margin: 0 auto; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.blog-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 20px 36px -24px rgba(15, 23, 42, .3); }
.blog-card-image { aspect-ratio: 1 / 1; background: var(--color-primary-light); overflow: hidden; }
.blog-card-image img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.blog-card-date { font-size: .78rem; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--color-primary); }
.blog-card-body h3 { margin: 0; font-size: 1.1rem; }
.blog-card-body p { color: var(--color-muted); font-size: .9rem; margin: 0; flex: 1; }
.blog-card-more { font-size: .88rem; font-weight: 700; margin-top: 4px; }
.blog-empty { text-align: center; color: var(--color-muted); padding: 40px 0; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 40px; }
.pagination-link { font-weight: 700; }
.pagination-status { color: var(--color-muted); font-size: .9rem; }

.post-header { max-width: 760px; margin: 0 auto 32px; text-align: center; }
.post-date { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--color-primary); margin-bottom: .6em; }
.post-image { max-width: 900px; margin: 0 auto 40px; border-radius: var(--radius); overflow: hidden; }
.post-image img { width: 100%; display: block; }
.post-body { max-width: 720px; margin: 0 auto; font-size: 1.02rem; color: var(--color-text); }
.post-body h2, .post-body h3, .post-body h4 { margin-top: 1.4em; }
.post-body img { border-radius: 10px; margin: 1.2em 0; }
.post-body a { text-decoration: underline; }
.post-back { max-width: 720px; margin: 40px auto 0; }

/* Blog yönetim (admin) */
.admin-shell { min-height: 60vh; display: flex; align-items: center; justify-content: center; padding: 60px 0; }
.admin-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 420px;
}
.admin-form { display: grid; gap: 16px; }
.admin-page { padding: 48px 0 80px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 32px; flex-wrap: wrap; }
.admin-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
.admin-form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 14px;
}
.admin-list { display: flex; flex-direction: column; gap: 10px; }
.admin-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 12px 16px;
}
.admin-list-item span { font-size: .9rem; color: var(--color-muted); white-space: nowrap; }
.admin-list-item strong { font-size: .92rem; color: var(--color-dark); }
.admin-list-empty { color: var(--color-muted); font-size: .9rem; }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-card::after { display: none; }
  .demo-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .admin-layout { grid-template-columns: 1fr; }

  .main-nav {
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 4px;
    padding: 16px 24px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 8px 0; font-size: 1rem; }
  .nav-doc-link { display: block; color: var(--color-primary); font-weight: 700; }
  .nav-toggle { display: flex; }
  .btn-doc { display: none; }
}
@media (max-width: 640px) {
  .logo { font-size: 1.05rem; gap: 6px; }
  .logo img { width: 30px; height: 30px; }
  .header-actions .btn { padding: 9px 14px; font-size: .82rem; }
  section { padding: 56px 0; }
  .flow-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .header-actions .btn { padding: 8px 10px; font-size: .76rem; }
}