/* ============================================================
   İSM YAZILIM — Tanıtım Sitesi v2
   Tam koyu modern tema: aurora gradyanlar, cam kartlar, bento grid
   ============================================================ */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url('../fonts/sg-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url('../fonts/sg-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Açık (light) tema — sayfa gövdesi */
  --bg: #FBFAFD;
  --bg-2: #F2F1F7;
  --ink: #191322;
  --muted: #5F5A6E;
  --line: rgba(25, 19, 34, .11);
  --glass: #FFFFFF;
  --glass-2: #F5F4F9;
  --card-shadow: 0 6px 22px rgba(25, 19, 34, .07);
  /* Koyu bölümler (hero, footer, CTA) için ayrı zemin */
  --bg-dark: #05070D;
  --red: #E50019;
  --red-deep: #C00016;
  --purple: #7C3AED;
  --purple-deep: #6D28D9;
  --grad: linear-gradient(100deg, var(--red) 0%, var(--purple) 100%);
  --accent: var(--red);
  --accent-glow: rgba(229, 0, 25, .28);
  --radius: 18px;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}

.theme-purple { --accent: var(--purple); --accent-glow: rgba(124, 58, 237, .28); }

/* Koyu bölümler kendi içinde koyu-tema token'ları kullanır */
.hero, .phero, .cta, .section--dark, .search-showcase, .site-footer {
  --ink: #EDF0F7;
  --muted: #9AA0B0;
  --line: rgba(255, 255, 255, .10);
  --glass: rgba(255, 255, 255, .045);
  --glass-2: rgba(255, 255, 255, .07);
  --card-shadow: 0 12px 32px rgba(0, 0, 0, .45);
  color: var(--ink);
}
.hero, .phero, .cta, .section--dark, .search-showcase, .site-footer { background: var(--bg-dark); }

/* Açık zemindeki kartlar gölgeyle ayrışır */
.bcard, .feature-card, .pillar, .value-card, .problem-card,
.sys-item, .step, .faq-item, .audience__box { box-shadow: var(--card-shadow); }

/* SmartB4B vitrin kartı koyu görsel üstünde — metni beyaz kalır */
.bcard--feature h3 { color: #fff; }
.bcard--feature p { color: rgba(255, 255, 255, .74); }
.bcard--feature .bcard__link { color: #fff; }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Nokta ızgara dokusu */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(25, 19, 34, .05) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: min(1200px, 92%); margin-inline: auto; position: relative; z-index: 1; }

::selection { background: var(--purple); color: #fff; }

/* ---------- Aurora küreleri ---------- */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
  pointer-events: none;
  animation: orbFloat 14s ease-in-out infinite alternate;
}
.orb--red { background: radial-gradient(circle, rgba(229, 0, 25, .55), transparent 70%); }
.orb--purple { background: radial-gradient(circle, rgba(109, 74, 209, .55), transparent 70%); animation-delay: -7s; }
@keyframes orbFloat {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(60px, -40px) scale(1.15); }
}

/* ---------- Tipografi ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.03em;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  background: var(--glass);
  padding: .45rem 1.1rem;
  border-radius: 999px;
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 12px var(--accent-glow);
}

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .9rem 1.8rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: .95rem;
  font-family: var(--font-display);
  letter-spacing: .01em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
  position: relative;
}
.btn:hover { transform: translateY(-2px); }
.btn--grad {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 32px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, .25);
}
.btn--grad:hover { box-shadow: 0 12px 44px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, .25); }
.btn--ghost {
  border-color: var(--line);
  background: var(--glass);
  color: var(--ink);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover { border-color: rgba(255, 255, 255, .3); background: var(--glass-2); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 253, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled { border-color: var(--line); background: rgba(251, 250, 253, .92); box-shadow: 0 4px 20px rgba(25, 19, 34, .05); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 72px;
}
.site-header__logo img {
  height: 34px;
  width: auto;
}

.site-nav { display: flex; align-items: center; gap: .2rem; }
.site-nav > li { position: relative; }
.site-nav a {
  display: block;
  padding: .5rem .95rem;
  font-weight: 600;
  font-size: .92rem;
  color: var(--muted);
  border-radius: 10px;
  transition: color .2s ease, background .2s ease;
}
.site-nav > li > a:hover, .site-nav > li > a.is-active { color: var(--ink); background: var(--glass-2); }

.dropdown__menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  translate: -50% 0;
  min-width: 320px;
  background: rgba(255, 255, 255, .98);
  backdrop-filter: blur(24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(25, 19, 34, .16);
  padding: .6rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.dropdown:hover .dropdown__menu,
.dropdown.is-open .dropdown__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown__menu a { display: flex; flex-direction: column; gap: .05rem; padding: .6rem .85rem; border-radius: 10px; color: var(--ink); }
.dropdown__menu a:hover { background: var(--glass-2); }
.dropdown__menu small { color: var(--muted); font-weight: 400; font-size: .78rem; }
.dropdown__menu .menu-sep { margin: .45rem .85rem; border: 0; border-top: 1px solid var(--line); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------- Bölümler ---------- */
.section { padding: 6.5rem 0; position: relative; }
.section__head { max-width: 760px; margin-bottom: 3.5rem; position: relative; }
.section__head--center { margin-inline: auto; text-align: center; }
.section__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -.03em; }
.section__desc { margin-top: 1.1rem; color: var(--muted); font-size: 1.06rem; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center right;
  opacity: .32;
  mask-image: linear-gradient(to bottom, black 55%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  mask-image: linear-gradient(to bottom, black 55%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent);
}
@media (max-width: 720px), (prefers-reduced-motion: reduce) {
  .hero__video { display: none; }
}
.hero .orb--red { width: 560px; height: 560px; top: -180px; right: -120px; }
.hero .orb--purple { width: 520px; height: 520px; bottom: -220px; left: -140px; }
.hero__inner {
  position: relative;
  z-index: 1;
  padding: 8.5rem 0 5.5rem;
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.04;
  letter-spacing: -.04em;
}
.hero__sub {
  margin: 1.6rem auto 0;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--muted);
  max-width: 620px;
}
.hero__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-top: 2.6rem; }

/* Hero altı sayaçlar */
.hero__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 3.5rem auto 3rem;
  backdrop-filter: blur(10px);
}
.stat { background: rgba(8, 11, 20, .75); padding: 1.8rem 1rem; text-align: center; }
.stat__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  letter-spacing: -.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__label { margin-top: .2rem; font-size: .88rem; color: var(--muted); }

/* ---------- Bento grid ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.1rem;
}
.bcard {
  --mx: 50%;
  --my: 50%;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: 1.9rem 1.7rem;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
  grid-column: span 2;
}
.bcard:hover { transform: translateY(-5px); border-color: rgba(255, 255, 255, .18); }
/* fare takipli parlama */
.bcard::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(480px circle at var(--mx) var(--my), var(--card-glow, rgba(139, 92, 246, .16)), transparent 45%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.bcard:hover::before { opacity: 1; }
.bcard--red { --card-glow: rgba(255, 45, 70, .14); }
.bcard > * { position: relative; z-index: 1; }

.bcard--feature {
  grid-column: span 4;
  grid-row: span 1;
  min-height: 300px;
  justify-content: flex-end;
  background-size: cover;
  background-position: center;
}
.bcard--feature::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 7, 13, .95) 20%, rgba(5, 7, 13, .35) 60%, rgba(5, 7, 13, .15));
}
.bcard--feature > * { z-index: 2; }

.bcard__logo { height: 26px; width: auto; align-self: flex-start; }
.bcard--feature .bcard__logo { height: 32px; }
.bcard__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--glass-2);
  border: 1px solid var(--line);
  color: var(--red);
}
.bcard__icon svg { width: 22px; height: 22px; }
.bcard h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; letter-spacing: -.01em; }
.bcard p { font-size: .92rem; color: var(--muted); flex: 1; }
.bcard--feature p { flex: 0; max-width: 460px; }
.bcard__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-display);
  font-size: .88rem;
  font-weight: 700;
  color: var(--ink);
}
.bcard__link::after { content: '→'; color: var(--accent); transition: transform .2s ease; }
.bcard:hover .bcard__link::after { transform: translateX(5px); }

/* ---------- Değerler (neden İSM) ---------- */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.value-card {
  --mx: 50%; --my: 50%;
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  overflow: hidden;
  transition: border-color .3s ease;
}
.value-card:hover { border-color: rgba(255, 255, 255, .18); }
.value-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(255, 45, 70, .12), transparent 45%);
  opacity: 0;
  transition: opacity .3s ease;
}
.value-card:hover::before { opacity: 1; }
.value-card > * { position: relative; }
.value-card__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .85rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: .9rem;
}
.value-card h3 { font-family: var(--font-display); font-size: 1.06rem; font-weight: 700; margin-bottom: .5rem; }
.value-card p { font-size: .9rem; color: var(--muted); }

/* ---------- Süreç ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; position: relative; }
.step { position: relative; padding: 2rem 1.7rem; background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius); }
.step__num {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  box-shadow: 0 0 24px var(--accent-glow);
  margin-bottom: 1.1rem;
}
.step h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; margin-bottom: .4rem; }
.step p { font-size: .9rem; color: var(--muted); }

/* ---------- Marquee referanslar ---------- */
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  padding: .6rem 0;
}
.marquee__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee--reverse .marquee__track { animation-direction: reverse; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.refs__item {
  white-space: nowrap;
  padding: .7rem 1.6rem;
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  color: var(--muted);
  transition: color .2s ease, border-color .2s ease;
}
.refs__item:hover { color: var(--ink); border-color: rgba(255, 255, 255, .25); }
.refs__note { margin-top: 2.2rem; text-align: center; color: var(--muted); font-size: .95rem; }
.refs__wall { display: flex; flex-direction: column; gap: 1rem; }
.refs__logo {
  flex: 0 0 auto;
  height: 72px;
  width: 158px;
  display: grid;
  place-items: center;
  padding: 12px 20px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: -8px 7px 5px rgba(0, 0, 0, .25);
}
.refs__logo img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  object-fit: contain;
}

/* ---------- CTA ---------- */
.cta { position: relative; overflow: hidden; }
.cta .orb--red { width: 460px; height: 460px; top: -160px; left: 8%; }
.cta .orb--purple { width: 460px; height: 460px; bottom: -180px; right: 6%; }
.cta__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  padding: 4.5rem 2rem;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 28px;
  backdrop-filter: blur(16px);
}
.cta h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -.03em; line-height: 1.1; }
.cta p { margin-top: 1.1rem; color: var(--muted); font-size: 1.05rem; }
.cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-top: 2.4rem; }
.cta__meta { margin-top: 1.8rem; font-size: .9rem; color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-dark); position: relative; z-index: 1; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; padding: 4rem 0 3rem; }
.site-footer__logo { height: 32px; width: auto; filter: brightness(0) invert(1); opacity: .95; }
.site-footer__about { margin-top: 1.2rem; font-size: .92rem; color: var(--muted); max-width: 380px; }
.site-footer h3 { font-family: var(--font-display); font-size: .95rem; font-weight: 700; margin-bottom: 1.1rem; }
.site-footer li { margin-bottom: .55rem; color: var(--muted); font-size: .92rem; }
.site-footer a { font-size: .92rem; color: var(--muted); transition: color .2s ease; }
.site-footer a:hover { color: var(--ink); }
.site-footer__bottom { border-top: 1px solid var(--line); padding: 1.4rem 0; font-size: .85rem; color: var(--muted); }

/* ---------- Ürün sayfası ---------- */
.phero { position: relative; overflow: hidden; }
.phero .orb--red { width: 480px; height: 480px; top: -160px; right: -100px; }
.phero .orb--purple { width: 480px; height: 480px; top: 40%; left: -160px; }
.theme-purple .phero .orb--red { background: radial-gradient(circle, rgba(109, 74, 209, .5), transparent 70%); }
.phero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 4rem;
  align-items: center;
  padding: 6rem 0 6.5rem;
}
/* Video arka planlı ürün hero'su (ana sayfa gibi ortalanmış) */
.phero--video .orb--red { top: -160px; right: -120px; }
.phero--video .orb--purple { top: auto; bottom: -200px; left: -140px; }
.phero__center {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
  padding: 6.5rem 0 6.5rem;
}
.phero__center .phero__logo { margin-inline: auto; }
.phero__center .phero__sub { margin-inline: auto; }
.phero__center .phero__actions { justify-content: center; }

.phero__logo { height: 42px; width: auto; margin-bottom: 1.8rem; }
.phero__badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.2rem;
}
.phero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  line-height: 1.06;
  letter-spacing: -.035em;
}
.phero__sub { margin-top: 1.3rem; font-size: 1.08rem; color: var(--muted); max-width: 520px; }
.phero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }
.phero__media { position: relative; }
.phero__media::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: var(--grad);
  filter: blur(60px);
  opacity: .3;
  border-radius: 30px;
}
.phero__media img {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, .15);
  box-shadow: 0 40px 100px rgba(0, 0, 0, .6);
}

.intro__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.intro__grid h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -.03em; line-height: 1.15; }
.intro__grid p { color: var(--muted); font-size: 1.04rem; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.feature-card {
  --mx: 50%; --my: 50%;
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.7rem 1.5rem;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(255, 255, 255, .18); }
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx) var(--my), var(--accent-glow), transparent 50%);
  opacity: 0;
  transition: opacity .3s ease;
}
.feature-card:hover::before { opacity: .5; }
.feature-card > * { position: relative; }
.feature-card__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--glass-2);
  border: 1px solid var(--line);
  color: var(--accent);
  margin-bottom: 1rem;
}
.feature-card__icon svg { width: 21px; height: 21px; }
.feature-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: .4rem; }
.feature-card p { font-size: .89rem; color: var(--muted); }

.audience__box {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.6rem;
  align-items: start;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 2.4rem;
  position: relative;
  overflow: hidden;
}
.audience__box::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--grad);
}
.audience__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--glass-2);
  border: 1px solid var(--line);
  color: var(--accent);
}
.audience__icon svg { width: 25px; height: 25px; }
.audience__box h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; margin-bottom: .4rem; }
.audience__box p { color: var(--muted); }

.eco__links { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.eco__link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.3rem;
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .9rem;
  transition: border-color .2s ease, background .2s ease;
}
.eco__link:hover { border-color: var(--accent); background: var(--glass-2); }

/* ---------- SmartB4B özel bölümler ---------- */
/* Güven şeridi — hero'yu içeriğe bağlar */
.trust-strip {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: .5rem 1.4rem;
  max-width: 940px; margin: 0 auto 3.5rem; padding: .95rem 1.7rem;
  background: var(--glass); border: 1px solid var(--line); border-radius: 999px;
}
.trust-strip span {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-display); font-size: .85rem; font-weight: 600; color: var(--muted);
}
.trust-strip span::before {
  content: ''; flex: 0 0 auto;
  width: 6px; height: 6px; border-radius: 50%; background: var(--grad);
}

/* Değer sütunları (nedir'in üç ana vaadi) */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 2.6rem; }
.pillar {
  --mx: 50%; --my: 50%;
  position: relative; text-align: center;
  padding: 2.4rem 1.9rem;
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s ease, border-color .25s ease;
}
.pillar:hover { transform: translateY(-5px); border-color: rgba(255, 255, 255, .18); }
.pillar::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(139, 92, 246, .13), transparent 45%);
  opacity: 0; transition: opacity .3s ease;
}
.pillar:hover::before { opacity: 1; }
.pillar > * { position: relative; }
.pillar__icon {
  width: 56px; height: 56px; margin: 0 auto 1.2rem;
  display: grid; place-items: center; border-radius: 15px;
  background: var(--glass-2); border: 1px solid var(--line); color: var(--purple);
}
.pillar__icon svg { width: 27px; height: 27px; }
.pillar h3 { font-family: var(--font-display); font-size: 1.12rem; font-weight: 700; margin-bottom: .5rem; }
.pillar p { font-size: .92rem; color: var(--muted); }

/* Özellik kategorileri */
.feat-cat + .feat-cat { margin-top: 2.6rem; }
.feat-cat__label {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display); font-size: .82rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 1.3rem;
}
.feat-cat__label::before { content: ''; width: 22px; height: 2px; border-radius: 2px; background: var(--grad); }

@media (max-width: 900px) { .pillars { grid-template-columns: 1fr; } }

/* Sorun kartları */
.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.problem-card {
  position: relative;
  padding: 1.7rem 1.5rem;
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
}
.problem-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: .5rem; }
.problem-card p { font-size: .9rem; color: var(--muted); }

/* Akıllı arama vitrini */
.search-showcase { position: relative; overflow: hidden; }
.search-showcase__bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .22; z-index: 0;
  -webkit-mask-image: radial-gradient(120% 80% at 50% 40%, black 30%, transparent 75%);
  mask-image: radial-gradient(120% 80% at 50% 40%, black 30%, transparent 75%);
}
.search-showcase .container { position: relative; z-index: 1; }
.search-demo { max-width: 620px; margin: 0 auto; }
.search-box {
  display: flex; align-items: center; gap: .8rem;
  padding: 1.15rem 1.4rem;
  background: rgba(10, 13, 22, .85);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .5), 0 0 0 1px rgba(139, 92, 246, .12);
}
.search-box__icon { color: var(--purple); display: grid; place-items: center; }
.search-box__icon svg { width: 22px; height: 22px; }
.search-typed { font-family: var(--font-display); font-size: 1.15rem; font-weight: 500; color: var(--ink); white-space: nowrap; }
.search-caret { width: 2px; height: 1.3rem; background: var(--purple); animation: caretBlink 1s steps(1) infinite; }
@keyframes caretBlink { 50% { opacity: 0; } }
.search-match { min-height: 2rem; margin-top: .9rem; display: flex; justify-content: center; }
.search-match span {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .4rem 1rem;
  background: rgba(139, 92, 246, .14);
  border: 1px solid rgba(139, 92, 246, .32);
  border-radius: 999px;
  font-size: .84rem; font-weight: 600; color: #c4b5fd;
  opacity: 0; transform: translateY(4px);
  transition: opacity .3s ease, transform .3s ease;
}
.search-match span.show { opacity: 1; transform: none; }
.search-match span::before { content: '✨'; font-size: .9rem; }
.search-results { margin-top: .9rem; display: flex; flex-direction: column; gap: .6rem; min-height: 130px; }
.search-result {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .9rem 1.2rem;
  background: rgba(10, 13, 22, .7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 12px;
  opacity: 0; transform: translateY(8px);
  transition: opacity .35s ease, transform .35s ease;
}
.search-result.show { opacity: 1; transform: none; }
.search-result__name { font-weight: 600; font-size: .96rem; }
.search-result__meta { font-size: .82rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.search-result__check { color: #34d399; flex: 0 0 auto; font-weight: 700; }

/* 10 özellik — numaralı satırlar */
.feat-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
.feat-row {
  --mx: 50%; --my: 50%;
  position: relative;
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 1.1rem;
  align-items: start;
  padding: 1.7rem 1.6rem;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease;
}
.feat-row:hover { transform: translateY(-4px); border-color: rgba(255, 255, 255, .18); }
.feat-row::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(139, 92, 246, .12), transparent 45%);
  opacity: 0; transition: opacity .3s ease;
}
.feat-row:hover::before { opacity: 1; }
.feat-row > * { position: relative; }
.feat-row__no {
  font-family: var(--font-display); font-weight: 700; font-size: .85rem;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-top: .2rem;
}
.feat-row__icon {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 11px; background: var(--glass-2); border: 1px solid var(--line); color: var(--purple);
}
.feat-row__icon svg { width: 21px; height: 21px; }
.feat-row__body h3 { font-family: var(--font-display); font-size: 1.04rem; font-weight: 700; margin-bottom: .35rem; }
.feat-row__body p { font-size: .9rem; color: var(--muted); }
.discount-viz {
  display: inline-flex; align-items: center; gap: .5rem; flex-wrap: wrap;
  margin-top: .9rem; padding: .6rem 1rem;
  background: rgba(139, 92, 246, .1); border: 1px solid rgba(139, 92, 246, .25);
  border-radius: 10px; font-family: var(--font-display); font-weight: 700;
}
.discount-viz span { color: var(--ink); }
.discount-viz em { color: var(--muted); font-style: normal; }
.discount-viz strong {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Sistem düzeyi rozetler */
.sys-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.sys-item {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start;
  padding: 1.5rem 1.5rem;
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius);
}
.sys-item__icon {
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 11px; background: var(--glass-2); border: 1px solid var(--line); color: var(--purple);
}
.sys-item__icon svg { width: 20px; height: 20px; }
.sys-item h3 { font-family: var(--font-display); font-size: .98rem; font-weight: 700; margin-bottom: .25rem; }
.sys-item p { font-size: .86rem; color: var(--muted); }

@media (max-width: 1024px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-list { grid-template-columns: 1fr; }
  .sys-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .problem-grid, .sys-grid { grid-template-columns: 1fr; }
  .search-typed { font-size: 1rem; white-space: normal; }
  .feat-row { grid-template-columns: auto 1fr; }
  .feat-row__no { grid-row: 1; }
}

/* ---------- Alt sayfa hero'su (referanslar / iletişim) ---------- */
.hero--page .hero__inner { padding: 6.5rem 0 5rem; }
.hero--page .orb--red { width: 460px; height: 460px; top: -160px; right: -100px; }
.hero--page .orb--purple { width: 440px; height: 440px; bottom: -200px; left: -120px; }

/* Referans grid (statik liste) */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.ref-grid .refs__logo { width: auto; height: 84px; }

/* İletişim kartları */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.contact-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem 1.6rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.contact-card__icon {
  width: 48px; height: 48px; margin-bottom: .5rem;
  display: grid; place-items: center; border-radius: 13px;
  background: var(--accent-soft, rgba(229, 0, 25, .08));
  border: 1px solid var(--line); color: var(--accent);
}
.contact-card__icon svg { width: 24px; height: 24px; }
.contact-card h3 { font-family: var(--font-display); font-size: 1.02rem; font-weight: 700; }
.contact-card p { font-size: .94rem; color: var(--muted); }
.contact-card p a { color: var(--muted); transition: color .2s ease; }
.contact-card p a:hover { color: var(--accent); }
.contact-card__link {
  margin-top: auto; padding-top: .6rem;
  font-family: var(--font-display); font-weight: 700; font-size: .88rem; color: var(--accent);
}

/* Sosyal medya */
.social-block { text-align: center; margin-top: 3rem; }
.social-label {
  display: block; font-family: var(--font-display); font-size: .8rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem;
}
.social-links { display: flex; justify-content: center; gap: .8rem; }
.social-link {
  width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px;
  background: var(--glass); border: 1px solid var(--line); color: var(--ink);
  box-shadow: var(--card-shadow); transition: transform .2s ease, color .2s ease, border-color .2s ease;
}
.social-link:hover { transform: translateY(-3px); color: var(--accent); border-color: var(--accent); }
.social-link svg { width: 22px; height: 22px; }

/* Harita */
.map-wrap {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--card-shadow);
  line-height: 0;
}
.map-wrap iframe { width: 100%; height: 420px; border: 0; display: block; filter: grayscale(.2); }

@media (max-width: 900px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) {
  .contact-grid { grid-template-columns: 1fr; }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .map-wrap iframe { height: 320px; }
}

/* ---------- SSS akordeon ---------- */
.faq { max-width: 820px; margin-inline: auto; display: flex; flex-direction: column; gap: .9rem; }
.faq-item {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s ease;
}
.faq-item[open] { border-color: rgba(255, 255, 255, .18); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.3rem 1.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform .25s ease;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item__a { padding: 0 1.6rem 1.4rem; }
.faq-item__a p { color: var(--muted); font-size: .96rem; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2, .6, .2, 1), transform .7s cubic-bezier(.2, .6, .2, 1); transition-delay: var(--rd, 0s); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb, .marquee__track { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bcard, .bcard--feature { grid-column: span 2; }
  .values-grid, .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .phero__inner { grid-template-columns: 1fr; gap: 3rem; padding: 4.5rem 0; }
  .phero__media { order: -1; }
  .intro__grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 4.2rem 0; }
  .hero__inner { padding: 5.5rem 0 3.5rem; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .bento, .values-grid, .steps-grid, .features-grid { grid-template-columns: 1fr; }
  .bcard, .bcard--feature { grid-column: span 1; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .audience__box { grid-template-columns: 1fr; }
  .cta__inner { padding: 3rem 1.4rem; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(5, 7, 13, .97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: .8rem 4%;
    display: none;
    z-index: 99;
  }
  .site-nav.is-open { display: flex; }
  .dropdown__menu {
    position: static;
    translate: 0 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    margin-left: .9rem;
    background: transparent;
    display: none;
  }
  .dropdown.is-open .dropdown__menu { display: block; }
  .site-header .btn { display: none; }
}