/* ============================================================
   ECOL — GLOBAL STYLE
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }
ul, ol { padding: 0; margin: 0; list-style: none; }

/* Tipografi */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text);
}
h1 { font-size: clamp(2.25rem, 4.5vw, var(--fs-5xl)); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.75rem, 3.2vw, var(--fs-3xl)); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
p { margin: 0; color: var(--color-text-soft); line-height: var(--lh-relaxed); }

/* --- Layout helpers --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.section {
  padding: clamp(4rem, 9vw, var(--sp-32)) 0;
}
.section-tight { padding: clamp(3rem, 6vw, var(--sp-20)) 0; }
.section-bg-soft { background: var(--color-bg-soft); }

/* Görsel olarak gizli ama ekran okuyucuya açık */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Skip link (a11y) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-deep);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  z-index: 9999;
}
.skip-link:focus { top: 1rem; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), background var(--t-base);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.brand__mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand__mark svg,
.brand__mark img {
  width: 100%;
  height: 100%;
  display: block;
}
.brand__name {
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-deep);
}
.brand__sub {
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--color-text-mute);
  letter-spacing: 0;
  margin-left: 0.25rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
/* Nav içinde buton olmayan linklerin stilleri (buton sınıflarını ezmeyelim) */
.nav a:not(.btn) {
  position: relative;
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-md);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav a:not(.btn):hover { color: var(--color-text); background: var(--color-bg-mute); }
.nav a.is-active:not(.btn) { color: var(--color-text); }
.nav a.is-active:not(.btn)::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -2px;
  transform: translateX(-50%);
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-brand);
}
.nav__cta { margin-left: 0.5rem; }

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
}
.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  border-radius: 2px;
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--t-base);
}
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

/* ============================================================
   BUTON
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  padding: 0 1.125rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-base), background var(--t-base), color var(--t-base), border-color var(--t-base);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--sm { height: 36px; padding: 0 0.875rem; font-size: 0.875rem; }
.btn--lg { height: 52px; padding: 0 1.5rem; font-size: 1rem; }

/* Birincil — siteyi domine eden navy CTA */
.btn--primary {
  background: var(--color-deep);
  color: #fff;
}
.btn--primary:hover { background: var(--color-deep-2); box-shadow: var(--shadow-md); }

/* Marka — navy → teal sofistike gradyan, sitenin ana CTA stili */
.btn--brand {
  color: #fff;
  background: var(--color-deep);
  background-image: var(--gradient-brand);
  box-shadow: var(--shadow-glow);
}
.btn--brand:hover {
  background-image: var(--gradient-brand-bright);
  box-shadow: var(--shadow-brand-glow);
  transform: translateY(-1px);
}

/* Aksent — sıcak turuncu, SADECE özel "Demo iste" tipi conversion CTA için */
.btn--accent {
  color: #fff;
  background: var(--color-accent);
  box-shadow: var(--shadow-accent-glow);
}
.btn--accent:hover { background: var(--color-accent-dark); transform: translateY(-1px); }

/* İkincil — outline */
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--ghost:hover { background: var(--color-bg-mute); border-color: var(--color-text-subtle); }

.btn--link {
  height: auto;
  padding: 0;
  background: transparent;
  color: var(--color-brand);
}
.btn--link:hover { color: var(--color-deep); }

.btn .ic { width: 18px; height: 18px; flex-shrink: 0; }

/* Eyebrow / küçük başlık — varsayılan nötr, modifierlar ile renk */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  background: var(--color-bg-mute);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
}
.eyebrow.is-brand {
  color: var(--color-brand-dark);
  background: var(--color-brand-soft);
  border-color: transparent;
}
.eyebrow.is-accent {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  border-color: transparent;
}
.eyebrow.is-deep {
  color: var(--color-deep);
  background: rgba(15, 44, 76, 0.06);
  border-color: transparent;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: clamp(5rem, 12vw, 9rem) 0 clamp(3rem, 7vw, 6rem);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  z-index: -1;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(15,23,42,0.06) 1px, transparent 0);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 80%);
  z-index: -1;
}
.hero__inner {
  display: grid;
  gap: var(--sp-6);
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}
.hero__lead {
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--color-text-mute);
  max-width: 660px;
  margin: 0 auto;
}
.hero__cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
  margin-top: var(--sp-2);
}

.hero__hint {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--sp-4);
  font-size: 0.8125rem;
  color: var(--color-text-mute);
}
.hero__hint .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(22,163,108,0.16);
}

/* Hero "device" mock */
.hero__visual {
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  position: relative;
}
.device {
  margin: 0 auto;
  max-width: 1040px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.device__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
}
.device__dot { width: 10px; height: 10px; border-radius: 50%; background: #E2E8F0; }
.device__dot.r { background: #FCA5A5; }
.device__dot.y { background: #FDE68A; }
.device__dot.g { background: #86EFAC; }
.device__url {
  margin-left: 0.5rem;
  padding: 0.375rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-mute);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}
.device__body {
  padding: clamp(1rem, 3vw, 2rem);
  background:
    radial-gradient(60% 80% at 50% 0%, rgba(15,44,76,0.06), transparent 70%),
    var(--color-bg);
}

/* ============================================================
   GENEL BÖLÜM — Section header
   ============================================================ */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--sp-12);
  display: grid;
  gap: var(--sp-3);
}
.section-head--left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}
.section-head h2 + p { color: var(--color-text-mute); font-size: 1.0625rem; }

/* ============================================================
   FEATURE GRID
   ============================================================ */
.grid {
  display: grid;
  gap: var(--sp-5);
}
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.feature {
  padding: var(--sp-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}
.feature__icon {
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  margin-bottom: var(--sp-4);
}
.feature__icon svg { width: 22px; height: 22px; }
.feature h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
}
.feature p { font-size: 0.9375rem; }

/* ============================================================
   ÜRÜN KARTI (Çözümler)
   ============================================================ */
.product-card {
  position: relative;
  display: grid;
  gap: var(--sp-5);
  padding: var(--sp-8);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.product-card--featured {
  background: var(--gradient-deep);
  color: #fff;
  border-color: transparent;
}
.product-card--featured h3,
.product-card--featured p { color: #fff; }
.product-card--featured p { color: rgba(255,255,255,0.78); }
.product-card--featured::after {
  content: '';
  position: absolute;
  inset: -40% -40% auto auto;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,184,196,0.32), transparent 65%);
  z-index: -1;
}

.product-card__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.product-card__logo {
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  font-family: var(--font-display);
  font-weight: 800;
  background: var(--color-bg-mute);
  color: var(--color-text);
}
.product-card--featured .product-card__logo {
  background: rgba(255,255,255,0.10);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.16);
}
.product-card__title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.product-card__title small {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  margin-top: 0.25rem;
}
.product-card--featured .product-card__title small { color: rgba(255,255,255,0.62); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-bg-mute);
  color: var(--color-text-soft);
}
.tag--live { background: var(--color-accent-soft); color: var(--color-accent-dark); }
.tag--soon { background: var(--color-brand-soft); color: var(--color-brand-dark); }
.tag--planned { background: #FEF3C7; color: #B45309; }

.product-card__list { display: grid; gap: 0.5rem; }
.product-card__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-soft);
}
.product-card--featured .product-card__list li { color: rgba(255,255,255,0.85); }
.product-card__list li::before {
  content: '';
  width: 6px; height: 6px;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--color-brand);
  flex-shrink: 0;
}
.product-card--featured .product-card__list li::before {
  background: var(--color-brand-bright);
}

.product-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* ============================================================
   STATS
   ============================================================ */
.stats {
  display: grid;
  gap: var(--sp-6);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: var(--sp-8);
  border-radius: var(--radius-xl);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border-soft);
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__lbl {
  font-size: 0.875rem;
  color: var(--color-text-mute);
  margin-top: 0.25rem;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  position: relative;
  padding: clamp(3rem, 7vw, 5rem) clamp(1.5rem, 5vw, 3.5rem);
  border-radius: var(--radius-2xl);
  background: var(--gradient-deep);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: -50% auto auto -10%;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,184,196,0.32), transparent 65%);
  z-index: -1;
}
.cta-band::after {
  content: '';
  position: absolute;
  inset: auto -10% -50% auto;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31,142,150,0.30), transparent 65%);
  z-index: -1;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.78); }
.cta-band__inner {
  display: grid;
  gap: var(--sp-5);
  max-width: 720px;
}
.cta-band__cta { display: inline-flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: 0.5rem; }

/* ============================================================
   FORM
   ============================================================ */
.form {
  display: grid;
  gap: var(--sp-4);
}
.field {
  display: grid;
  gap: 0.375rem;
}
.field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-soft);
  letter-spacing: 0.01em;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 0.75rem 0.875rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 16px;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 4px rgba(31,142,150,0.16);
}
.field textarea { resize: vertical; min-height: 120px; }

.field--row { grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 640px) { .field--row { grid-template-columns: 1fr; } }

.form__feedback {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: none;
}
.form__feedback.is-success { display: block; background: var(--color-accent-soft); color: var(--color-accent-dark); }
.form__feedback.is-error { display: block; background: #FEE2E2; color: #991B1B; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: var(--sp-16) 0 var(--sp-8);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
}
.site-footer__grid {
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1.5fr repeat(3, 1fr);
}
.site-footer h4 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  margin-bottom: 0.875rem;
}
.site-footer ul { display: grid; gap: 0.5rem; }
.site-footer a { color: var(--color-text-soft); font-size: 0.9375rem; transition: color var(--t-fast); }
.site-footer a:hover { color: var(--color-brand-dark); }
.site-footer__about p { color: var(--color-text-mute); font-size: 0.9375rem; max-width: 320px; }
.site-footer__bot {
  margin-top: var(--sp-12);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-mute);
  flex-wrap: wrap;
}

/* ============================================================
   ABOUT — TIMELINE
   ============================================================ */
.timeline {
  display: grid;
  gap: 0;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-brand), var(--color-accent));
  border-radius: 2px;
}
.timeline__item {
  position: relative;
  padding: 0 0 var(--sp-8) var(--sp-12);
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-brand);
  box-shadow: 0 0 0 4px rgba(31,142,150,0.10);
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-brand-dark);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

/* ============================================================
   VALUE GRID (about)
   ============================================================ */
.value {
  padding: var(--sp-6);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}
.value__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--color-brand-dark);
}
.value h3 { margin-top: 0.5rem; margin-bottom: 0.5rem; font-size: 1.125rem; }

/* ============================================================
   CONTACT INFO
   ============================================================ */
.contact-grid {
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1.1fr 1fr;
  align-items: start;
}
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: var(--sp-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}
.contact-card__icon {
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  flex-shrink: 0;
}
.contact-card h4 { font-size: 0.875rem; font-weight: 600; color: var(--color-text-mute); margin-bottom: 0.125rem; letter-spacing: 0.02em; }
.contact-card p, .contact-card a { color: var(--color-text); font-weight: 500; }
.contact-card a:hover { color: var(--color-brand-dark); }

/* ============================================================
   REFERANSLAR — logo placeholder + testimonial
   ============================================================ */
.grid--1 { grid-template-columns: 1fr; }

.logo-slot {
  aspect-ratio: 16 / 7;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-3);
  position: relative;
  overflow: hidden;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.logo-slot:empty {
  border-style: dashed;
}
.logo-slot:empty::after {
  content: 'logo yakında';
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-subtle);
  text-transform: uppercase;
}
.logo-slot img {
  max-width: 80%;
  max-height: 72%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.78;
  filter: grayscale(15%);
  transition: opacity var(--t-base), filter var(--t-base);
}
.logo-slot:hover {
  border-color: var(--color-brand);
  box-shadow: 0 4px 20px -10px rgba(14, 165, 233, 0.25);
}
.logo-slot:hover img {
  opacity: 1;
  filter: grayscale(0);
}
/* Beyaz/transparan zeminli logolar (koyu zemine göre tasarlanmış)
   için renk inversiyonu — beyaz → koyu */
.logo-slot--invert img {
  filter: invert(1) brightness(0.85) grayscale(15%);
}
.logo-slot--invert:hover img {
  filter: invert(1) brightness(0.95) grayscale(0);
}

/* ============================================================
   TESTIMONIAL
   ============================================================ */
.testimonial {
  margin: 0;
  padding: var(--sp-6) var(--sp-8);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  position: relative;
}
.testimonial::before {
  content: '"';
  position: absolute;
  top: -0.25rem;
  left: 1rem;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-brand-soft);
  line-height: 1;
  pointer-events: none;
}
.testimonial p {
  font-size: 1.0625rem;
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-4);
}
.testimonial footer {
  font-size: 0.875rem;
  color: var(--color-text-mute);
}
.testimonial__author { font-weight: 600; color: var(--color-text); }
.testimonial__role { color: var(--color-text-mute); }

/* ============================================================
   MODULE CARD (B2B Modüller)
   ============================================================ */
.module-card {
  padding: var(--sp-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.module-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-brand);
}
.module-card__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.625rem;
}
.module-card__icon {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  flex-shrink: 0;
}
.module-card__icon svg { width: 18px; height: 18px; }
.module-card h3 { font-size: 1rem; font-weight: 700; }
.module-card p { font-size: 0.875rem; line-height: var(--lh-snug); }

/* ============================================================
   USE CASE (B2B Roller)
   ============================================================ */
.usecase {
  padding: var(--sp-6);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.usecase:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.usecase__role {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-brand-dark);
  background: var(--color-brand-soft);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
}
.usecase h3 { font-size: 1.125rem; margin-bottom: 0.75rem; }
.usecase ul { display: grid; gap: 0.375rem; }
.usecase ul li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-soft);
}
.usecase ul li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--color-brand);
  margin-top: 0.5rem;
  flex-shrink: 0;
}

/* Product byline (B2B Platform header alt yazı) */
.product-by {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
}

/* ============================================================
   COMPARISON (Karşılaştırma sayfası)
   ============================================================ */
.compare-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.compare-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  min-width: 760px;
}
.compare-table thead th {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  text-align: left;
  padding: var(--sp-5) var(--sp-4);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  vertical-align: bottom;
  z-index: 2;
}
.compare-table thead th:first-child {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
}
.compare-table th.is-featured {
  background: linear-gradient(180deg, rgba(43,184,196,0.12), rgba(43,184,196,0.02));
}
.compare-product {
  display: grid;
  gap: 0.375rem;
}
.compare-product__logo {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-bg-mute);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--color-text);
}
.compare-product--featured .compare-product__logo {
  background: var(--gradient-brand);
  color: #fff;
}
.compare-product__name { font-size: 1rem; font-weight: 700; }
.compare-product__cat {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-mute);
}
.compare-table tbody tr { transition: background var(--t-fast); }
.compare-table tbody tr:hover { background: var(--color-bg-soft); }
.compare-table tbody td,
.compare-table tbody th {
  padding: var(--sp-4);
  border-bottom: 1px solid var(--color-border-soft);
  vertical-align: top;
}
.compare-table tbody th {
  font-weight: 500;
  color: var(--color-text-soft);
  text-align: left;
  width: 32%;
  background: var(--color-bg-soft);
}
.compare-table tbody td {
  color: var(--color-text);
  font-weight: 500;
  width: 22.66%;
}
.compare-table td.is-featured {
  background: rgba(43,184,196,0.04);
}
.compare-table tbody tr:last-child td,
.compare-table tbody tr:last-child th { border-bottom: 0; }
.compare-row-head {
  background: var(--color-bg-mute) !important;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}
.compare-row-head th { padding: 0.625rem var(--sp-4) !important; }
.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
}
.check--off {
  background: var(--color-bg-mute);
  color: var(--color-text-subtle);
}
.check svg { width: 14px; height: 14px; }
.compare-cta {
  margin-top: var(--sp-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .menu-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: calc(var(--header-h) + 8px);
    right: var(--container-pad);
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: var(--sp-3);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
    pointer-events: none;
    transform-origin: top right;
    transition: opacity var(--t-base), transform var(--t-base);
  }
  .nav.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }
  .nav a:not(.btn) { padding: 0.625rem 0.875rem; }
  .nav a.is-active:not(.btn)::after { display: none; }
  .nav__cta { margin-left: 0; margin-top: 0.25rem; }
  .menu-toggle.is-open span { background: transparent; }
  .menu-toggle.is-open span::before { transform: translateY(6px) rotate(45deg); }
  .menu-toggle.is-open span::after  { transform: translateY(-6px) rotate(-45deg); }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; padding: var(--sp-5); }
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__bot { flex-direction: column; align-items: flex-start; }
  .product-card { padding: var(--sp-6); }
  .product-card__foot { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 460px) {
  .stats { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }
}

/* ============================================================
   REVEAL ANIMASYONU (mevcut)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--t-slow), transform var(--t-slow);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-reveal="left"]  { transform: translateX(-24px); }
.reveal[data-reveal="left"].is-visible  { transform: translateX(0); }
.reveal[data-reveal="right"] { transform: translateX(24px); }
.reveal[data-reveal="right"].is-visible { transform: translateX(0); }
.reveal[data-reveal="zoom"]  { transform: scale(0.94); }
.reveal[data-reveal="zoom"].is-visible  { transform: scale(1); }

/* Stagger child animasyonu (grid içi) */
.reveal[data-stagger] > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1),
              transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--i, 0) * 70ms);
}
.reveal[data-stagger].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   MODERN ANIMATIONS — 2026
   ============================================================ */

/* Hero gradient mesh — yumuşakça nefes alan arka plan */
@keyframes meshFloat {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(2%, -2%, 0) scale(1.06); }
}
.hero { background-image: var(--gradient-mesh); background-attachment: fixed; }
.hero::before {
  animation: meshFloat 18s ease-in-out infinite;
  will-change: transform;
}

/* Float — hero device hafif yükselip iner */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.hero__visual.is-visible .device {
  animation: float 6s ease-in-out infinite;
  animation-delay: 600ms;
  will-change: transform;
}

/* Shine — buton üstünde hafif parlama */
.btn--brand,
.btn--accent { position: relative; overflow: hidden; isolation: isolate; }
.btn--brand::before,
.btn--accent::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg,
    transparent 30%,
    rgba(255,255,255,0.28) 50%,
    transparent 70%);
  transform: translateX(-120%);
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}
.btn--brand:hover::before,
.btn--accent:hover::before { transform: translateX(120%); }

/* Card — 3D tilt ipucu (hover'da hafif perspektif) */
.product-card,
.feature,
.module-card,
.usecase,
.value {
  transform-style: preserve-3d;
  perspective: 1000px;
}
.product-card:hover,
.feature:hover,
.module-card:hover,
.usecase:hover { transform: translateY(-4px); }

/* Magnetic / spotlight — hover takip eden ışık efekti */
[data-spotlight] {
  position: relative;
  overflow: hidden;
}
[data-spotlight]::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%),
    rgba(43,184,196,0.10), transparent 40%);
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}
[data-spotlight]:hover::after { opacity: 1; }

/* Gradient text — başlıklar için seçenek */
.text-gradient {
  background: var(--gradient-brand-bright);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* Number count — büyüyerek görünür */
.stat__num { display: inline-block; transition: transform var(--t-base); }
.stats:hover .stat:hover .stat__num { transform: scale(1.04); }

/* Scroll progress bar — sayfanın okuma ilerleme çubuğu */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  background: transparent;
  z-index: 200;
  pointer-events: none;
}
.scroll-progress__bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-brand-bright);
  transition: width 80ms linear;
  box-shadow: 0 0 12px rgba(43,184,196,0.6);
}

/* Marquee — logo / referans kayar şeridi */
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  gap: var(--sp-12);
  width: max-content;
  animation: marquee 38s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Pulse — canlı durum noktası */
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0    rgba(22,163,108,0.45); }
  70%  { box-shadow: 0 0 0 10px rgba(22,163,108,0);    }
  100% { box-shadow: 0 0 0 0    rgba(22,163,108,0);    }
}
.hero__hint .dot { animation: pulse-ring 2.4s ease-out infinite; }

/* Section divider — sıkı/yumuşak geçiş için */
.section-divider {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 0 auto;
}

/* ============================================================
   HERO SLIDER (Ana sayfa banner)
   ============================================================ */
.hero-slider {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(2.5rem, 6vw, 5rem);
  background-image: var(--gradient-mesh);
}
.hero-slider::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  z-index: -1;
}
.hero-slider__viewport {
  position: relative;
  width: 100%;
  min-height: clamp(540px, 78vh, 720px);
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1),
              transform 700ms cubic-bezier(0.22, 1, 0.36, 1),
              visibility 0s linear 600ms;
  pointer-events: none;
}
.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  transition-delay: 0s;
}
.hero-slide__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-slide__copy {
  display: grid;
  gap: var(--sp-5);
  align-content: center;
}
.hero-slide__copy h2 {
  font-size: clamp(2.25rem, 4.6vw, 3.75rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.hero-slide__copy h2 small {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(0.875rem, 1.2vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  margin-bottom: 0.5rem;
}
.hero-slide__lead {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--color-text-mute);
  max-width: 56ch;
  line-height: var(--lh-relaxed);
}
.hero-slide__bullets {
  display: grid;
  gap: 0.5rem;
}
.hero-slide__bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  color: var(--color-text-soft);
}
.hero-slide__bullets li::before {
  content: '';
  width: 6px; height: 6px;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--color-brand);
  flex-shrink: 0;
}
.hero-slide__cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}
.hero-slide__visual {
  position: relative;
}
.hero-slide__visual .device {
  margin: 0;
  max-width: 100%;
}

/* Aktif slide content stagger animasyonu */
.hero-slide.is-active .hero-slide__copy > * {
  animation: heroSlideUp 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-slide.is-active .hero-slide__copy > *:nth-child(1) { animation-delay: 80ms; }
.hero-slide.is-active .hero-slide__copy > *:nth-child(2) { animation-delay: 180ms; }
.hero-slide.is-active .hero-slide__copy > *:nth-child(3) { animation-delay: 260ms; }
.hero-slide.is-active .hero-slide__copy > *:nth-child(4) { animation-delay: 340ms; }
.hero-slide.is-active .hero-slide__copy > *:nth-child(5) { animation-delay: 420ms; }
.hero-slide.is-active .hero-slide__visual {
  animation: heroSlideZoom 800ms cubic-bezier(0.22, 1, 0.36, 1) 240ms both;
}
@keyframes heroSlideUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes heroSlideZoom {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

/* Kontroller — alt çubuk */
.hero-slider__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
  flex-wrap: wrap;
}
.hero-slider__dots {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}
.hero-slider__dot {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 0.875rem;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text-mute);
  background: transparent;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast);
}
.hero-slider__dot:hover { color: var(--color-text); background: var(--color-bg-mute); }
.hero-slider__dot.is-active {
  color: #fff;
  background: var(--gradient-brand);
}
.hero-slider__dot__bar {
  position: absolute;
  left: 6px; right: 6px;
  bottom: 4px;
  height: 2px;
  background: rgba(255,255,255,0.35);
  border-radius: 2px;
  overflow: hidden;
  display: none;
}
.hero-slider__dot.is-active .hero-slider__dot__bar { display: block; }
.hero-slider__dot__bar::after {
  content: '';
  display: block;
  width: 0;
  height: 100%;
  background: #fff;
  animation: heroProgress var(--hero-duration, 6000ms) linear forwards;
}
.hero-slider.is-paused .hero-slider__dot.is-active .hero-slider__dot__bar::after {
  animation-play-state: paused;
}
@keyframes heroProgress {
  from { width: 0; }
  to   { width: 100%; }
}

.hero-slider__nav {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.hero-slider__btn {
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  transition: transform var(--t-fast), border-color var(--t-fast), background var(--t-fast), color var(--t-fast);
  box-shadow: var(--shadow-sm);
}
.hero-slider__btn:hover {
  transform: translateY(-1px);
  border-color: var(--color-brand);
  color: var(--color-brand-dark);
  background: var(--color-brand-soft);
}
.hero-slider__btn:active { transform: translateY(0); }
.hero-slider__btn svg { width: 18px; height: 18px; }
.hero-slider__btn--play {
  width: auto;
  padding: 0 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  gap: 0.5rem;
}
.hero-slider__btn--play .icon-play  { display: inline-flex; }
.hero-slider__btn--play .icon-pause { display: none; }
.hero-slider.is-paused .hero-slider__btn--play .icon-play  { display: none; }
.hero-slider.is-paused .hero-slider__btn--play .icon-pause { display: inline-flex; }

/* Counter (1 / 4) */
.hero-slider__counter {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-mute);
  letter-spacing: 0.04em;
}
.hero-slider__counter strong { color: var(--color-text); font-weight: 600; }

/* SR-only canlı bölge */
.hero-slider__live {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Mini ürün kartı görseli (ErpBridge / DataImport için sade SVG çerçeve) */
.hero-mini-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  padding: clamp(1rem, 2.5vw, 2rem);
}
.hero-mini-card::before {
  content: '';
  position: absolute;
  inset: -40% -40% auto auto;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,184,196,0.18), transparent 65%);
  pointer-events: none;
}

@media (max-width: 880px) {
  .hero-slide__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
  .hero-slider__viewport { min-height: 0; }
  .hero-slide {
    position: relative;
    inset: auto;
    display: none;
  }
  .hero-slide.is-active { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide,
  .hero-slide.is-active .hero-slide__copy > *,
  .hero-slide.is-active .hero-slide__visual {
    animation: none !important;
    transform: none !important;
    transition: opacity 200ms linear !important;
  }
  .hero-slider__dot__bar::after { animation: none !important; width: 100% !important; }
}

/* ============================================================
   LIVE CHAT WIDGET
   ============================================================ */
.chat-fab {
  position: fixed;
  right: clamp(1rem, 3vw, 1.5rem);
  bottom: clamp(1rem, 3vw, 1.5rem);
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--color-deep);
  background-image: var(--gradient-brand);
  color: #fff;
  border: 0;
  cursor: pointer;
  box-shadow: var(--shadow-brand-glow), 0 16px 36px -12px rgba(15, 44, 76, 0.45);
  z-index: var(--z-chat);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.chat-fab:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: var(--shadow-brand-glow), 0 20px 40px -10px rgba(15, 44, 76, 0.55);
}
.chat-fab:focus-visible {
  outline: 3px solid rgba(43,184,196,0.5);
  outline-offset: 4px;
}
.chat-fab__icon { width: 26px; height: 26px; transition: transform var(--t-base); }
.chat-fab__icon--close { display: none; }
.chat-fab.is-open .chat-fab__icon--open { display: none; }
.chat-fab.is-open .chat-fab__icon--close { display: block; }
.chat-fab__pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(43,184,196,0.55);
  animation: chat-pulse 2.2s ease-out infinite;
  pointer-events: none;
}
@keyframes chat-pulse {
  0%   { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.4);  opacity: 0;   }
}
.chat-fab.is-open .chat-fab__pulse { display: none; }

.chat-panel {
  position: fixed;
  right: clamp(1rem, 3vw, 1.5rem);
  bottom: calc(clamp(1rem, 3vw, 1.5rem) + 60px + 12px);
  width: min(360px, calc(100vw - 2rem));
  max-height: min(72vh, 560px);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-chat);
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity var(--t-base), transform var(--t-base);
  display: flex;
  flex-direction: column;
}
.chat-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.chat-panel__head {
  background: var(--gradient-deep);
  color: #fff;
  padding: var(--sp-5) var(--sp-5) var(--sp-4);
  position: relative;
  overflow: hidden;
}
.chat-panel__head::after {
  content: '';
  position: absolute;
  inset: -50% -20% auto auto;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,184,196,0.32), transparent 65%);
  pointer-events: none;
}
.chat-panel__title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.chat-panel__status {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.78);
  position: relative;
  z-index: 1;
}
.chat-panel__status .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(22,163,108,0.28);
}
.chat-panel__body {
  padding: var(--sp-4) var(--sp-5);
  overflow-y: auto;
  flex: 1;
  display: grid;
  gap: var(--sp-3);
}
.chat-msg {
  background: var(--color-bg-mute);
  padding: 0.75rem 0.875rem;
  border-radius: 14px 14px 14px 4px;
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: var(--lh-snug);
  max-width: 90%;
}
.chat-channel {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.875rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
  width: 100%;
  font-family: inherit;
  color: inherit;
}
.chat-channel:hover {
  border-color: var(--color-brand);
  background: var(--color-brand-soft);
  transform: translateX(2px);
}
.chat-channel__icon {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  color: #fff;
}
.chat-channel__icon--wa { background: #25D366; }
.chat-channel__icon--mail { background: var(--color-deep); }
.chat-channel__icon--phone { background: var(--color-accent); }
.chat-channel__icon--form { background: var(--color-brand); }
.chat-channel__icon svg { width: 18px; height: 18px; }
.chat-channel__text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.chat-channel__title {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}
.chat-channel__sub {
  font-size: 0.75rem;
  color: var(--color-text-mute);
}
.chat-channel__chev {
  color: var(--color-text-subtle);
  flex-shrink: 0;
  transition: transform var(--t-fast);
}
.chat-channel:hover .chat-channel__chev { transform: translateX(3px); color: var(--color-brand-dark); }
.chat-panel__foot {
  padding: var(--sp-3) var(--sp-5);
  border-top: 1px solid var(--color-border-soft);
  font-size: 0.75rem;
  color: var(--color-text-mute);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--color-bg-soft);
}
.chat-panel__foot a { color: var(--color-brand-dark); font-weight: 600; }

/* ============================================================
   SEÇİLİM & FOCUS
   ============================================================ */
::selection {
  background: rgba(43,184,196,0.25);
  color: var(--color-deep);
}
:focus-visible {
  outline: 3px solid rgba(43,184,196,0.45);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============================================================
   LOGO ÜRÜN AİLESİ — ECOL paletinde özgün ürün rozetleri
   (Logo Yazılım'ın kendi marka görselleri değil; ürün adlarına
   ait, sitenin tasarım diliyle hazırlanmış özgün rozetler.
   Logo kırmızısı aksan olarak kullanılır; gerçek/resmi logo
   dosyaları sağlanırsa .logo-badge alanına yerleştirilir.)
   ============================================================ */
:root {
  --logo-red: #E30613;
  --logo-red-dark: #B5050F;
  --logo-red-soft: #FDECED;
}
.logo-family {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}
.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4375rem 0.875rem 0.4375rem 0.4375rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-soft);
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-fast), background var(--t-base), color var(--t-base);
}
.logo-chip:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.logo-chip__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px; height: 24px;
  padding: 0 5px;
  border-radius: 7px;
  background-image: var(--gradient-brand);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.logo-chip small {
  font-weight: 500;
  color: var(--color-text-subtle);
  font-size: 0.75rem;
  letter-spacing: 0;
}
.logo-chip--primary {
  background-image: var(--gradient-brand);
  background-color: var(--color-deep);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-glow);
  padding-right: 1rem;
}
.logo-chip--primary .logo-chip__mark { background: rgba(255,255,255,0.18); }
.logo-chip--primary small { color: rgba(255,255,255,0.72); }
.logo-chip--accent {
  background: var(--color-accent-soft);
  border-color: transparent;
  color: var(--color-accent-dark);
}
.logo-chip--accent .logo-chip__mark { background-image: none; background-color: var(--color-accent); }
.logo-chip--accent small { color: var(--color-accent-dark); opacity: 0.72; }
/* Logo kırmızısı — Logo ürünleri için */
.logo-chip--logo .logo-chip__mark { background-image: none; background-color: var(--logo-red); }
.logo-chip--logo:hover { border-color: var(--logo-red); box-shadow: 0 6px 16px -6px rgba(227,6,19,0.30); }
.logo-chip--logo.logo-chip--solid {
  background: var(--logo-red);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 22px -8px rgba(227,6,19,0.40);
  padding-right: 1rem;
}
.logo-chip--logo.logo-chip--solid .logo-chip__mark { background-color: rgba(255,255,255,0.18); }
.logo-chip--logo.logo-chip--solid small { color: rgba(255,255,255,0.78); }

/* Logo uzmanlık kartı — koyu zeminde ürün vurgusu, Logo kırmızısı aksanlı */
.logo-spotlight {
  background-image: var(--gradient-deep);
  color: #fff;
  border-radius: var(--radius-2xl);
  border-top: 3px solid var(--logo-red);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  position: relative;
  overflow: hidden;
}
.logo-spotlight::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--gradient-glow);
  pointer-events: none;
}
.logo-spotlight::before {
  content: "";
  position: absolute; top: -120px; right: -80px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(227,6,19,0.22), transparent 65%);
  pointer-events: none;
}
.logo-spotlight > * { position: relative; z-index: 1; }
.logo-spotlight h3 { color: #fff; font-size: 1.375rem; }
.logo-spotlight p { color: rgba(255,255,255,0.78); }
.logo-spotlight .logo-chip {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
  color: rgba(255,255,255,0.92);
}
.logo-spotlight .logo-chip:hover {
  border-color: var(--color-brand-bright);
  background: rgba(255,255,255,0.10);
}
.logo-spotlight .logo-chip small { color: rgba(255,255,255,0.55); }
.logo-spotlight .logo-chip--logo .logo-chip__mark { background-color: var(--logo-red); }
.logo-spotlight .logo-chip--logo:hover { border-color: var(--logo-red); background: rgba(227,6,19,0.14); }
.logo-spotlight .logo-chip--logo.logo-chip--solid {
  background: var(--logo-red);
  border-color: transparent;
  color: #fff;
}
.logo-spotlight .logo-chip--logo.logo-chip--solid .logo-chip__mark { background-color: rgba(255,255,255,0.20); }
.logo-spotlight .logo-chip--logo.logo-chip--solid small { color: rgba(255,255,255,0.78); }
.logo-spotlight .logo-chip--primary {
  background: #fff;
  color: var(--color-deep);
  border-color: transparent;
}
.logo-spotlight .logo-chip--primary .logo-chip__mark { background-image: var(--gradient-brand); }
.logo-spotlight .logo-chip--primary small { color: var(--color-brand-dark); }

/* Logo "yetkili rozet" alanı — resmi logo dosyaları sağlanırsa <img> buraya gelir */
.logo-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-4);
}
.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  min-width: 120px;
  padding: 0.625rem 1.5rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-fast);
}
.logo-badge:hover { border-color: var(--logo-red); box-shadow: 0 8px 18px -6px rgba(227,6,19,0.22); transform: translateY(-1px); }
.logo-badge img { max-height: 52px; max-width: 360px; object-fit: contain; display: block; }
.logo-spotlight .logo-badge { box-shadow: 0 8px 20px -8px rgba(0,0,0,0.45); }
.logo-badge--ghost {
  border-style: dashed;
  border-color: var(--color-text-subtle);
  background: var(--color-bg-soft);
  color: var(--color-text-mute);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: center;
  line-height: 1.3;
}

/* Print — chat ve gereksiz UI gizle */
@media print {
  .chat-fab, .chat-panel, .scroll-progress, .menu-toggle { display: none !important; }
  .site-header, .site-footer { background: #fff !important; }
}