/* nviano.com — marka kılavuzu 1.0
   Nova Indigo #3730D8 · Signal Cyan #22D3EE · Deep Ink #0B1220 · Mist #E9ECF5
   Başlık/footer zemini (onaylı tasarım): #131540 */

:root {
  --indigo: #3730D8;
  --indigo-dark: #2A24A8;
  --cyan: #22D3EE;
  --ink: #0B1220;
  --navy: #131540;
  --navy-border: #2B2D66;
  --mist-tint: #EDEFF9;
  --text: #0B1220;
  --text-muted: #4A5165;
  --lavender: #C7CAE8;
  --lavender-muted: #9CA0CC;
  --lavender-faint: #7A7FA8;
  --card-bg: #F5F6FB;
  --card-border: #E9ECF5;
  --line: #E1E5F2;
  --font-head: Poppins, 'Century Gothic', 'Segoe UI', sans-serif;
  --font-body: Inter, 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--indigo); text-decoration: none; }
a:hover { color: var(--indigo-dark); }

h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

img { max-width: 100%; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ======= HEADER ======= */
.site-header {
  background: var(--navy);
  border-bottom: 1px solid var(--navy-border);
}
.site-header .container {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.site-header .logo img { height: 38px; width: auto; display: block; }

.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { font-size: 15px; font-weight: 400; color: var(--lavender); }
.main-nav a:hover { color: #FFFFFF; }
.main-nav a.active { font-weight: 500; color: #FFFFFF; }

.header-right { display: flex; align-items: center; gap: 20px; }

.lang-switch { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.lang-switch .sep { color: var(--navy-border); }
.lang-switch a, .lang-switch span.current { color: var(--lavender-muted); font-weight: 400; }
.lang-switch a:hover { color: #FFFFFF; }
.lang-switch .current { font-weight: 600; color: #FFFFFF; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  padding: 11px 24px;
  border-radius: 999px;
  white-space: nowrap;
}
.btn-primary { background: var(--indigo); color: #FFFFFF; }
.btn-primary:hover { background: var(--indigo-dark); color: #FFFFFF; }
.btn-outline { background: #FFFFFF; color: var(--indigo); border: 1px solid #C9CDE8; }
.btn-outline:hover { color: var(--indigo-dark); border-color: var(--indigo); }
.btn-lg { font-size: 15px; padding: 14px 30px; }

/* Mobil menü düğmesi */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #FFFFFF;
  margin: 5px 0;
  border-radius: 2px;
}

/* ======= HERO ======= */
.hero { background: var(--mist-tint); }
.hero .container {
  padding-top: 88px;
  padding-bottom: 96px;
  display: flex;
  align-items: center;
  gap: 64px;
}
.hero-copy {
  flex: 1 1 0;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  align-self: flex-start;
  background: #FFFFFF;
  border: 1px solid #DFE3F0;
  border-radius: 999px;
  padding: 8px 16px;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--cyan); display: inline-block;
}
.hero-badge span:not(.dot) {
  font-size: 13px; font-weight: 500; letter-spacing: 0.04em;
  color: var(--text-muted);
}
.hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 52px;
  line-height: 1.12;
  color: var(--text);
}
.hero-copy p { margin: 0; font-size: 18px; line-height: 1.65; color: var(--text-muted); }
.hero-actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; flex-wrap: wrap; }

/* Hero ürün temsili */
.hero-visual { flex: 1 1 0; min-width: 0; }
.mock-window {
  background: #FFFFFF;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(11, 18, 32, 0.10);
  overflow: hidden;
  border: 1px solid var(--line);
}
.mock-titlebar {
  display: flex; align-items: center; gap: 6px;
  padding: 14px 18px;
  border-bottom: 1px solid #EDF0F8;
}
.mock-titlebar span {
  width: 10px; height: 10px; border-radius: 999px;
  background: var(--line); display: inline-block;
}
.mock-body { display: flex; }
.mock-sidebar {
  width: 148px; flex-shrink: 0;
  background: var(--card-bg);
  padding: 20px 16px;
  display: flex; flex-direction: column; gap: 14px;
}
.mock-sidebar span { height: 8px; border-radius: 4px; background: #DFE3F0; display: block; }
.mock-sidebar span:first-child { background: var(--indigo); width: 72px; }
.mock-sidebar span:nth-child(2) { width: 96px; }
.mock-sidebar span:nth-child(3) { width: 84px; }
.mock-sidebar span:nth-child(4) { width: 100px; }
.mock-sidebar span:nth-child(5) { width: 64px; }
.mock-main { flex-grow: 1; padding: 22px; display: flex; flex-direction: column; gap: 18px; }
.mock-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.mock-card {
  background: var(--card-bg); border-radius: 10px; padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
}
.mock-card .label { height: 6px; width: 46px; border-radius: 3px; background: #C9CDE8; display: block; }
.mock-card .value { height: 12px; width: 34px; border-radius: 4px; display: block; }
.mock-card .value.indigo { background: var(--indigo); }
.mock-card .value.cyan { background: var(--cyan); width: 40px; }
.mock-card .value.ink { background: var(--ink); width: 30px; }
.mock-lines { display: flex; flex-direction: column; gap: 10px; }
.mock-lines span { height: 10px; border-radius: 5px; background: #EDF0F8; display: block; }
.mock-lines span:nth-child(1) { width: 100%; }
.mock-lines span:nth-child(2) { width: 88%; }
.mock-lines span:nth-child(3) { width: 94%; }
.mock-lines span:nth-child(4) { width: 70%; }
.mock-chart { display: flex; align-items: flex-end; gap: 10px; height: 72px; }
.mock-chart span { flex-grow: 1; border-radius: 4px 4px 0 0; background: #C9CDE8; display: block; }
.mock-chart span:nth-child(1) { height: 40%; }
.mock-chart span:nth-child(2) { height: 65%; }
.mock-chart span:nth-child(3) { height: 50%; background: var(--indigo); }
.mock-chart span:nth-child(4) { height: 85%; background: var(--indigo); }
.mock-chart span:nth-child(5) { height: 70%; }
.mock-chart span:nth-child(6) { height: 100%; background: var(--indigo); }

/* ======= BÖLÜM ORTAK ======= */
.section { padding: 96px 0; }
.section-head {
  display: flex; flex-direction: column; gap: 12px;
  max-width: 640px; margin-bottom: 48px;
}
.kicker {
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--indigo);
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 36px;
  line-height: 1.2;
  color: var(--text);
}

/* ======= ÜRÜNLER ======= */
.products { background: #FFFFFF; }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.product-card .card-kicker {
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--lavender-faint);
}
.product-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600; font-size: 24px; color: var(--text);
}
.product-card p { margin: 0; font-size: 14px; line-height: 1.65; color: var(--text-muted); flex-grow: 1; }
.product-card .card-link { font-size: 14px; font-weight: 600; color: var(--indigo); }

/* ======= HİZMETLER ======= */
.services { background: var(--mist-tint); }
.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.service-card {
  background: #FFFFFF; border-radius: 16px; padding: 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.service-card svg { width: 28px; height: 28px; }
.service-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 500; font-size: 18px; color: var(--text);
}
.service-card p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--text-muted); }

/* ======= YAKLAŞIM (KOYU) ======= */
.approach { background: var(--navy); }
.approach .kicker { color: var(--cyan); }
.approach .section-head h2 { color: #FFFFFF; }
.approach-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.approach-card {
  border: 1px solid var(--navy-border);
  border-radius: 16px;
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
}
.approach-card .bar {
  width: 28px; height: 3px; border-radius: 2px;
  background: var(--cyan); display: block;
}
.approach-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 500; font-size: 19px; color: #FFFFFF;
}
.approach-card p { margin: 0; font-size: 14px; line-height: 1.65; color: var(--lavender-muted); }

/* ======= CTA ======= */
.cta { background: var(--indigo-dark); }
.cta .container {
  padding-top: 80px; padding-bottom: 80px;
  display: flex; align-items: center; justify-content: space-between; gap: 48px;
}
.cta-copy { display: flex; flex-direction: column; gap: 12px; max-width: 620px; }
.cta h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600; font-size: 34px; line-height: 1.2; color: #FFFFFF;
}
.cta p { margin: 0; font-size: 17px; line-height: 1.6; color: #D9DBFA; }
.cta .btn {
  background: #FFFFFF; color: var(--indigo);
  font-size: 15px; font-weight: 600; padding: 15px 34px; flex-shrink: 0;
}
.cta .btn:hover { color: var(--indigo-dark); }

/* ======= FOOTER ======= */
.site-footer { background: var(--navy); }
.site-footer .container { padding-top: 72px; padding-bottom: 40px; }
.footer-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--navy-border);
}
.footer-brand { display: flex; flex-direction: column; gap: 18px; }
.footer-brand img { height: 38px; width: auto; align-self: flex-start; }
.footer-brand p { margin: 0; font-size: 14px; line-height: 1.65; color: var(--lavender-muted); }
.footer-col { display: flex; flex-direction: column; gap: 14px; }
.footer-col .col-title {
  font-size: 13px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--lavender-faint);
}
.footer-col a { font-size: 14px; color: var(--lavender); }
.footer-col a:hover { color: #FFFFFF; }
.footer-col .muted { font-size: 14px; line-height: 1.6; color: var(--lavender-faint); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding-top: 28px;
}
.footer-bottom .copyright { font-size: 13px; color: var(--lavender-faint); }

/* ======= RESPONSIVE ======= */
@media (max-width: 1024px) {
  .hero h1 { font-size: 42px; }
  .product-grid, .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--navy);
    border-bottom: 1px solid var(--navy-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 0;
    z-index: 50;
  }
  .main-nav.open { display: flex; }
  .main-nav a { display: block; width: 100%; padding: 12px 32px; }
  .site-header { position: relative; }
  .header-right .btn { display: none; }

  .hero .container { flex-direction: column; align-items: stretch; gap: 48px; padding-top: 56px; padding-bottom: 64px; }
  .hero-copy { max-width: none; }
  .section { padding: 64px 0; }
  .approach-grid { grid-template-columns: 1fr; }
  .cta .container { flex-direction: column; align-items: flex-start; padding-top: 56px; padding-bottom: 56px; }
}

@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .hero h1 { font-size: 34px; }
  .section-head h2 { font-size: 28px; }
  .cta h2 { font-size: 26px; }
  .product-grid, .service-grid, .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
}