/* ============================================================
   SentenSearch — açılış sayfası
   ============================================================ */

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

.hero { padding: 72px 0 0; }

.hero-top { text-align: center; max-width: 720px; }

.hero h1 {
  font-size: clamp(34px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 18px 0 16px;
}

.hero .lead {
  font-size: 17px;
  color: var(--muted);
  margin: 0 auto 28px;
  max-width: 34rem;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

.hero-note { margin-top: 18px; font-size: 13px; color: var(--faint); }

/* ---------- Ekran görüntüleri ----------
   Üç gerçek ekran yan yana: ortadaki arama sonucu büyük ve önde,
   yanlardakiler hafif küçük ve geride. Telefon çerçevesi görselin
   etrafına çiziliyor, görsel kendi köşe yarıçapıyla kırpılıyor. */

.shots {
  margin-top: 54px;
  padding: 0 20px 10px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 26px;
  position: relative;
}

/* Arkadaki ışıma: ekranlar boşlukta asılı durmasın. */
.shots::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(900px, 96%);
  height: 70%;
  background: radial-gradient(60% 60% at 50% 60%, rgba(168, 85, 247, 0.26), transparent 70%);
  filter: blur(18px);
  z-index: -1;
}

.shot {
  margin: 0;
  border-radius: 34px;
  padding: 7px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--card-line);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
}

.shot img { border-radius: 27px; display: block; width: 100%; height: auto; }

.shot.main {
  width: 288px;
  z-index: 2;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6), 0 0 70px rgba(168, 85, 247, 0.22);
}

.shot.side { width: 248px; opacity: 0.86; margin-bottom: 26px; }

@media (hover: hover) {
  .shot { transition: transform 0.35s ease, opacity 0.35s ease; }
  .shot:hover { transform: translateY(-8px); opacity: 1; }
}

/* ---------- Adımlar ---------- */

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.step { position: relative; }

.step .num {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 600;
  background: var(--grad);
  color: #fff;
  margin-bottom: 14px;
}

.step h3 { margin: 0 0 6px; font-size: 17px; }

.step p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- Özellikler ---------- */

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.feature .ico {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-line);
}

.feature.ai .ico { background: var(--grad); border-color: transparent; }

.feature h3 { margin: 0 0 6px; font-size: 17px; }

.feature p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- Premium ---------- */

.pro-card {
  border: 1px solid rgba(168, 85, 247, 0.35);
  background:
    linear-gradient(180deg, rgba(168, 85, 247, 0.14), rgba(59, 130, 246, 0.06)),
    var(--card);
  border-radius: 26px;
  padding: 34px;
}

.pro-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 13px 26px;
}

.pro-list li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 14.5px;
}

.pro-list .tick {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 11px;
  background: var(--grad);
  color: #fff;
}

.pro-list b { color: var(--text); font-weight: 600; }

.pro-note { margin: 24px 0 0; font-size: 13px; color: var(--faint); }

/* ---------- SSS ---------- */

.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 10px; }

.faq details {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: 16px;
  padding: 4px 20px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 600;
  font-size: 15.5px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  color: var(--purple);
  font-size: 20px;
  line-height: 1;
}

.faq details[open] summary::after { content: "−"; }

.faq p { margin: 0 0 18px; color: var(--muted); font-size: 14.5px; }

/* ---------- Kapanış çağrısı ---------- */

.cta-box {
  text-align: center;
  border-radius: 30px;
  padding: 54px 28px;
  background:
    radial-gradient(40rem 20rem at 50% 0%, rgba(168, 85, 247, 0.22), transparent 70%),
    var(--card);
  border: 1px solid var(--card-line);
}

.cta-box h2 { font-size: clamp(25px, 4vw, 36px); margin: 0 0 12px; letter-spacing: -0.02em; }

.cta-box p { color: var(--muted); margin: 0 0 26px; }

/* ---------- Görünüme girince belirme ----------
   Gizleme YALNIZCA JS çalışıyorken geçerli (<html class="js">).
   Aksi hâlde script yüklenmezse ya da bir hata verirse sayfanın
   yarısı görünmez kalıyor. */

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }

.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

@media (max-width: 900px) {
  .hero { padding: 48px 0 0; }
  .shots { gap: 14px; }
  .shot.main { width: 216px; }
  .shot.side { width: 186px; margin-bottom: 18px; }
  .steps, .features { grid-template-columns: 1fr; }
  .pro-list { grid-template-columns: 1fr; }
}

/* Telefon genişliğinde üçü yan yana sığmıyor: yatay kaydırma ve
   `scroll-snap` ile her ekran sırayla ortaya oturuyor. */
@media (max-width: 620px) {
  .shots {
    justify-content: flex-start;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 18px;
  }

  .shots::-webkit-scrollbar { display: none; }

  .shot { flex: none; scroll-snap-align: center; }
  .shot.main { width: 236px; }
  .shot.side { width: 236px; opacity: 1; margin-bottom: 0; }
}

/* ---------- Bize ulaşın ---------- */

.contact-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 34px;
  border-radius: 26px;
  border: 1px solid var(--card-line);
  background:
    radial-gradient(30rem 16rem at 12% 0%, rgba(59, 130, 246, 0.16), transparent 70%),
    var(--card);
}

.contact-box h2 { margin: 12px 0 8px; font-size: clamp(22px, 3vw, 30px); letter-spacing: -0.02em; }

.contact-box p { margin: 0; color: var(--muted); max-width: 34rem; font-size: 15px; }

@media (max-width: 620px) {
  .contact-box { padding: 26px; }
  .contact-box .btn { width: 100%; }
}