/* ==========================================================================
   ETrade Shop Bilgi Teknolojileri — Design System
   Palette: near-black ground with a teal accent and a violet secondary,
   both drawn from the ETrade Shop logo's cart-icon gradient — reserved for
   one gradient detail per page (hero word, glows) plus interactive states.
   Type: Sora (display) / Work Sans (body) / JetBrains Mono (labels, data).
   This is a deliberate single dark identity (no light-mode swap) — colors
   are painted explicitly throughout.
   ========================================================================== */

:root{
  --bg:            #090c11;
  --bg-elevated:   #0e131b;
  --bg-card:       #121826;
  --bg-card-hover: #161e2e;
  --border:        #212a3a;
  --border-soft:   #1a212e;
  --text:          #edf1f6;
  --text-muted:    #92a0b5;
  --text-faint:    #5b6a80;
  --accent:        #3fa7c4;
  --accent-strong: #5fc7dd;
  --accent-soft:   rgba(63,167,196,0.12);
  --accent-border: rgba(63,167,196,0.35);
  --accent-2:      #7458c9;
  --success:       #4ecb8d;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

*, *::before, *::after{ box-sizing: border-box; }

html{
  background: var(--bg);
  color-scheme: dark;
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Work Sans", -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width: 100%; display: block; }
[hidden]{ display: none !important; }

a{ color: inherit; text-decoration: none; }

h1, h2, h3, h4{
  font-family: "Sora", "Work Sans", sans-serif;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}

p{ margin: 0; }

.mono{
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

.eyebrow{
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  background: var(--accent-soft);
}

.h1{ font-size: clamp(2.4rem, 4.6vw, 4.25rem); }
.h2{ font-size: clamp(1.7rem, 2.8vw, 2.5rem); }
.h3{ font-size: clamp(1.2rem, 1.4vw, 1.4rem); }

.lede{
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  color: var(--text-muted);
  max-width: 60ch;
}

.body-muted{ color: var(--text-muted); }

::selection{ background: var(--accent-soft); color: var(--text); }

:focus-visible{
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Layout --------------------------------------------------------------- */

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

section{
  padding-block: clamp(56px, 9vw, 120px);
}

.section-head{
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: clamp(36px, 5vw, 56px);
  max-width: 640px;
}

.section-head.center{
  align-items: center;
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
}

.section-head .h2{
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
}

/* Background texture ----------------------------------------------------- */

.grid-veil{
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 60% 20%, black 40%, transparent 90%);
  opacity: 0.6;
  pointer-events: none;
}

/* Buttons ---------------------------------------------------------------- */

.btn{
  --btn-pad-y: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: var(--btn-pad-y) 1.5rem;
  border-radius: 999px;
  font-family: "Work Sans", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}

.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0); }

.btn-primary{
  background: var(--accent);
  color: #051023;
  box-shadow: 0 8px 24px -8px rgba(63,167,196,0.55);
}
.btn-primary:hover{ background: var(--accent-strong); }

.btn-ghost{
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--accent-border); background: var(--accent-soft); }

.btn-sm{ padding: 0.6rem 1.1rem; font-size: 0.85rem; }

.link-arrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--accent-strong);
  font-size: 0.95rem;
}
.link-arrow svg{ transition: transform 0.18s ease; width: 16px; height: 16px; }
.link-arrow:hover svg{ transform: translateX(4px); }

/* Navigation --------------------------------------------------------------- */

.site-header{
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(9,12,17,0.7);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  transition: border-color 0.25s ease, background 0.25s ease;
}
.site-header.is-scrolled{
  border-bottom-color: var(--border);
  background: rgba(9,12,17,0.92);
}

.nav-inner{
  max-width: 1560px;
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.brand-mark{ width: 30px; height: 30px; flex-shrink: 0; }

.brand-word{
  background: linear-gradient(120deg, var(--text) 40%, var(--accent-strong) 75%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-logo-chip{
  display: inline-flex;
  align-items: center;
  background: #eef1f6;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 7px 12px;
  line-height: 0;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.brand:hover .brand-logo-chip{
  transform: translateY(-1px);
  box-shadow: 0 6px 18px -8px rgba(63,167,196,0.5);
}
.brand-logo-img{ height: 24px; width: auto; display: block; }

.footer-brand .brand-logo-chip{ padding: 9px 15px; }
.footer-brand .brand-logo-img{ height: 28px; }

.legal-name{
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--text-faint);
  line-height: 1.6;
}

.nav-links{
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.nav-links li{ flex-shrink: 0; }

.nav-links a{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  white-space: nowrap;
  line-height: 1.3;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.nav-links a:hover{ color: var(--text); background: var(--bg-card-hover); border-color: var(--accent-border); }
.nav-links a[aria-current="page"]{ color: var(--text); background: var(--accent-soft); border-color: var(--accent-border); }

.nav-cta{ display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* Language switcher --------------------------------------------------------- */

.lang-switch{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.lang-switch svg{ width: 15px; height: 15px; flex-shrink: 0; }
.lang-switch:hover{ border-color: var(--accent-border); color: var(--text); background: var(--accent-soft); }

.lang-switch-mobile{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 8px;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 0.98rem;
  border-top: 1px solid var(--border);
  margin-top: 6px;
  padding-top: 16px;
}
.lang-switch-mobile svg{ width: 17px; height: 17px; flex-shrink: 0; }
.lang-switch-mobile:hover{ background: var(--bg-card); color: var(--text); }

.nav-toggle{
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg{ width: 18px; height: 18px; }

.mobile-panel{
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 8px var(--gutter) 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.mobile-panel.is-open{ display: flex; }
.mobile-panel a:not(.lang-switch-mobile):not(.btn){
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.98rem;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.mobile-panel a[aria-current="page"]{ color: var(--accent-strong); background: var(--accent-soft); border-color: var(--accent-border); }
.mobile-panel a:hover{ background: var(--bg-card); color: var(--text); border-color: var(--accent-border); }
.mobile-panel .btn{ margin-top: 10px; }

@media (max-width: 1400px){
  .nav-links{ display: none; }
  .nav-cta .btn{ display: none; }
  .nav-toggle{ display: inline-flex; }
}

/* Breadcrumb ------------------------------------------------------------- */

.breadcrumb{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.breadcrumb a{ color: var(--text-muted); }
.breadcrumb a:hover{ color: var(--accent-strong); }

/* Cards -------------------------------------------------------------------- */

.card{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(24px, 2.6vw, 32px);
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.service-card{
  display: flex;
  flex-direction: column;
  gap: 18px;
  height: 100%;
}
.service-card:hover{
  border-color: var(--accent-border);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.card-icon{
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-strong);
}
.card-icon svg{ width: 24px; height: 24px; }

.service-card h3{
  font-size: 1.3rem;
  align-self: flex-start;
  padding: 8px 16px;
  border: 1px solid var(--accent-border);
  border-radius: 12px;
  background: var(--accent-soft);
}

.tag-list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 6px;
}
.tag{
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
}

/* Feature grid (subpages) ------------------------------------------------- */

.feature-card{
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-card:hover{ border-color: var(--accent-border); }

/* Stats row ----------------------------------------------------------------- */

.stats-row{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
}
.stat{
  padding: 28px 20px;
  text-align: left;
  border-right: 1px solid var(--border);
}
.stat:last-child{ border-right: none; }
.stat .num{
  font-family: "Sora", sans-serif;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.stat .num span{ color: var(--accent-strong); }
.stat .label{
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 760px){
  .stats-row{ grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2){ border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2){ border-bottom: 1px solid var(--border); }
}

/* Process steps ------------------------------------------------------------- */

.process-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.process-step{
  background: var(--bg-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.process-step .step-index{
  font-family: "JetBrains Mono", monospace;
  color: var(--accent-strong);
  font-size: 0.85rem;
}
.process-step h4{ font-size: 1.05rem; }
.process-step p{ font-size: 0.9rem; color: var(--text-muted); }

@media (max-width: 900px){
  .process-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .process-grid{ grid-template-columns: 1fr; }
}

/* Grids ---------------------------------------------------------------------- */

.grid-3{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2{ display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-5{ display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }

/* Services grid: flexes to however many service cards exist, growing the
   last row's cards to fill the width instead of leaving a dangling gap. */
.grid-services{ display: flex; flex-wrap: wrap; gap: 24px; }
.grid-services > .service-card{ flex: 1 1 260px; }

@media (max-width: 1024px){
  .grid-4{ grid-template-columns: repeat(2, 1fr); }
  .grid-5{ grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px){
  .grid-3{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px){
  .grid-3, .grid-2, .grid-4{ grid-template-columns: 1fr; }
  .grid-5{ grid-template-columns: repeat(2, 1fr); }
}

/* Compact category card (product-type tiles: hardware categories, etc.) ------ */

.category-card{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 22px 18px;
}
.category-card h4{ font-size: 0.98rem; }
.category-card p{ font-size: 0.83rem; color: var(--text-muted); }

/* Hero ------------------------------------------------------------------------ */

.hero{
  position: relative;
  padding-block: clamp(64px, 10vw, 108px) clamp(56px, 8vw, 96px);
  overflow: hidden;
}

.hero-inner{
  display: grid;
  grid-template-columns: 1.05fr 0.85fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  position: relative;
}

.hero-copy{ display: flex; flex-direction: column; gap: 22px; }

.hero .h1 .accent-word{
  background: linear-gradient(120deg, var(--accent-strong), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; margin-top: 6px; }

.hero-art{
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  justify-self: center;
}

@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-art{ order: -1; max-width: 280px; }
}

.page-hero{
  position: relative;
  padding-block: clamp(48px, 7vw, 76px) clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--border-soft);
  overflow: hidden;
}
.page-hero-inner{ position: relative; max-width: 760px; }

/* CTA band --------------------------------------------------------------------- */

.cta-band{
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 15% 0%, var(--accent-soft), transparent 55%),
    var(--bg-card);
  padding: clamp(36px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band .cta-text{ max-width: 520px; display: flex; flex-direction: column; gap: 10px; }
.cta-actions{ display: flex; gap: 12px; flex-wrap: wrap; }

/* Contact ------------------------------------------------------------------------ */

.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-list{ display: flex; flex-direction: column; gap: 20px; margin-top: 8px; }
.contact-item{ display: flex; gap: 14px; align-items: flex-start; }
.contact-item .card-icon{ width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0; }
.contact-item .card-icon svg{ width: 18px; height: 18px; }
.contact-item h4{ font-size: 0.95rem; margin-bottom: 2px; }
.contact-item p, .contact-item a{ font-size: 0.9rem; color: var(--text-muted); }
.contact-item a:hover{ color: var(--accent-strong); }

@media (max-width: 760px){
  .contact-grid{ grid-template-columns: 1fr; }
}

/* Footer --------------------------------------------------------------------------- */

.site-footer{
  border-top: 1px solid var(--border-soft);
  padding-block: 48px 32px;
  background: var(--bg-elevated);
}
.footer-top{
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-soft);
}
.footer-brand p{ margin-top: 14px; color: var(--text-muted); font-size: 0.9rem; max-width: 32ch; }
.footer-col h5{
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 14px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.footer-col ul{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ color: var(--text-muted); font-size: 0.9rem; }
.footer-col a:hover{ color: var(--accent-strong); }
.footer-bottom{
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-faint);
}

@media (max-width: 760px){
  .footer-top{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px){
  .footer-top{ grid-template-columns: 1fr; }
}

/* Reveal animation ------------------------------------------------------------------- */

.reveal{
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: no-preference){
  .reveal{
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.is-visible{ opacity: 1; transform: none; }
}

/* Utility ----------------------------------------------------------------------------- */

.pill{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-card);
}
.pill .dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(78,203,141,0.18);
}

/* WhatsApp floating chat button -------------------------------------------- */

.whatsapp-float{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 200;
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px -8px rgba(0,0,0,0.5);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-float:hover{
  transform: scale(1.08);
  box-shadow: 0 14px 32px -6px rgba(0,0,0,0.6);
}
.whatsapp-float svg{ width: 24px; height: 24px; display: block; }

@media (max-width: 480px){
  .whatsapp-float{ width: 46px; height: 46px; right: 12px; bottom: 12px; }
  .whatsapp-float svg{ width: 22px; height: 22px; }
}

/* Contact form success / error states ---------------------------------- */

.form-success{
  display: none;
  text-align: center;
  padding: 30px 20px;
  border: 1px solid var(--accent-border);
  background: var(--accent-soft);
  border-radius: 12px;
}
.form-success .form-success-icon{
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--accent-strong);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.form-success .form-success-icon svg{ width: 22px; height: 22px; }
.form-success h4{ margin: 0 0 6px; font-size: 1.05rem; color: var(--text); }
.form-success p{ margin: 0; font-size: 0.9rem; color: var(--text-muted); }

.form-error{
  display: none;
  margin-top: 4px;
  padding: 12px 14px;
  border: 1px solid rgba(220,80,80,0.4);
  background: rgba(220,80,80,0.1);
  border-radius: 10px;
  font-size: 0.85rem;
  color: #f0a3a3;
}