/* ============================================================
   COLLAPSSI WEB SİTESİ - ANA STİL DOSYASI
   Renkleri değiştirmek isterseniz aşağıdaki :root bölümünü düzenleyin.
   ============================================================ */

:root {
  --mor-koyu: #3b1578;      /* Ana koyu mor */
  --mor: #6d28d9;           /* Collapssi moru */
  --mor-acik: #8b5cf6;      /* Açık mor */
  --lime: #c8ff4d;          /* Vurgu rengi (tekliflerdeki sarı-yeşil) */
  --beyaz: #ffffff;
  --krem: #f7f5ff;          /* Açık zemin */
  --metin: #241b35;         /* Koyu metin */
  --metin-soluk: #6f6788;   /* Soluk metin */
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Manrope', 'Segoe UI', sans-serif;
  color: var(--metin);
  background: var(--beyaz);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, .display {
  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

/* ============ NOKTALI DESEN (teklif kapaklarındaki imza desen) ============ */
.dot-field {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.35) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(225deg, #000 0%, transparent 55%);
          mask-image: linear-gradient(225deg, #000 0%, transparent 55%);
}

/* ============ ÜST MENÜ ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #ece8f8;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--mor-koyu);
}

.brand img { height: 42px; width: auto; }

.nav-links {
  display: flex;
  gap: 1.8rem;
  align-items: center;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--metin-soluk);
  transition: color 0.2s;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover { color: var(--mor); }
.nav-links a.aktif { color: var(--mor-koyu); border-bottom-color: var(--lime); }

.btn {
  display: inline-block;
  padding: 0.8rem 1.7rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn:hover { transform: translateY(-2px); }

.btn-mor {
  background: linear-gradient(135deg, var(--mor) 0%, var(--mor-koyu) 100%);
  color: var(--beyaz);
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.35);
}

.btn-lime {
  background: var(--lime);
  color: #2a3a00;
  box-shadow: 0 8px 24px rgba(200, 255, 77, 0.4);
}

.btn-cizgili {
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--beyaz);
  background: transparent;
}
.btn-cizgili:hover { border-color: var(--lime); color: var(--lime); }

/* Mobil menü düğmesi */
.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.7rem;
  color: var(--mor-koyu);
  cursor: pointer;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  background: linear-gradient(140deg, var(--mor-koyu) 0%, var(--mor) 60%, var(--mor-acik) 100%);
  color: var(--beyaz);
  padding: 6.5rem 0 7rem;
  overflow: hidden;
}

.hero-ic {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 1.6rem;
}

.eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lime);
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  margin-bottom: 1.4rem;
}

.hero h1 .vurgu {
  color: var(--lime);
  position: relative;
  white-space: nowrap;
}

.hero p.tanitim {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: 2.2rem;
}

.hero-butonlar { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-logo-filigran {
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 420px;
  opacity: 0.1;
  z-index: 1;
}

/* ============ BÖLÜM BAŞLIKLARI ============ */
.bolum { padding: 5.5rem 0; }
.bolum.krem { background: var(--krem); }
.bolum.mor-zemin {
  background: linear-gradient(140deg, var(--mor-koyu), var(--mor));
  color: var(--beyaz);
  position: relative;
  overflow: hidden;
}

.bolum-baslik { max-width: 640px; margin-bottom: 3rem; }

.bolum-baslik .etiket {
  color: var(--mor);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.7rem;
}

.mor-zemin .bolum-baslik .etiket { color: var(--lime); }

.bolum-baslik h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
}

.bolum-baslik p {
  margin-top: 0.9rem;
  color: var(--metin-soluk);
  font-size: 1.05rem;
}

.mor-zemin .bolum-baslik p { color: rgba(255,255,255,0.8); }

/* ============ HİZMET KARTLARI ============ */
.kart-izgara {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}

.hizmet-kart {
  background: var(--beyaz);
  border: 1px solid #ece8f8;
  border-radius: 18px;
  padding: 2rem 1.7rem;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  position: relative;
}

.hizmet-kart:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(59, 21, 120, 0.12);
  border-color: var(--mor-acik);
}

.hizmet-kart .ikon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--mor), var(--mor-acik));
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.hizmet-kart h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.hizmet-kart p { color: var(--metin-soluk); font-size: 0.95rem; }

.hizmet-kart .detay-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--mor);
  font-weight: 700;
  font-size: 0.9rem;
}

/* ============ SÜREÇ (4 AŞAMA) ============ */
.asamalar { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.4rem; position: relative; z-index: 2; }

.asama {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 18px;
  padding: 1.8rem 1.5rem;
}

.asama .no {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--lime);
  display: block;
  margin-bottom: 0.6rem;
}

.asama h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.asama p { font-size: 0.92rem; color: rgba(255,255,255,0.78); }

/* ============ REFERANS KARTLARI ============ */
.referans-kart {
  background: var(--beyaz);
  border-radius: 20px;
  border: 1px solid #ece8f8;
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.referans-kart .sektor {
  display: inline-block;
  width: fit-content;
  background: var(--krem);
  color: var(--mor);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
}

.referans-kart h3 { font-size: 1.3rem; }
.referans-kart p { color: var(--metin-soluk); font-size: 0.97rem; }

.sonuc-listesi { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.4rem; }
.sonuc-listesi li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.93rem;
  color: var(--metin);
}
.sonuc-listesi li::before {
  content: "✓";
  color: var(--mor);
  font-weight: 800;
  flex-shrink: 0;
}

/* ============ CTA ŞERİDİ ============ */
.cta-serit {
  background: var(--lime);
  border-radius: 24px;
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  color: #243300;
}

.cta-serit h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); max-width: 520px; }
.cta-serit p { font-weight: 600; margin-top: 0.4rem; }

/* ============ İLETİŞİM ============ */
.iletisim-izgara {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.iletisim-kart {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--beyaz);
  border: 1px solid #ece8f8;
  border-radius: 16px;
  padding: 1.3rem 1.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  transition: border-color 0.2s, transform 0.2s;
}

.iletisim-kart:hover { border-color: var(--mor-acik); transform: translateX(4px); }

.iletisim-kart .ikon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--krem);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.iletisim-kart small { display: block; color: var(--metin-soluk); font-weight: 500; }

.form-kutu {
  background: var(--beyaz);
  border: 1px solid #ece8f8;
  border-radius: 20px;
  padding: 2.2rem;
  box-shadow: 0 20px 50px rgba(59,21,120,0.07);
}

.form-kutu label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin: 1.1rem 0 0.4rem;
}

.form-kutu input,
.form-kutu select,
.form-kutu textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid #ece8f8;
  border-radius: 12px;
  font-size: 0.95rem;
  font-family: inherit;
}

.form-kutu input:focus,
.form-kutu select:focus,
.form-kutu textarea:focus {
  outline: none;
  border-color: var(--mor-acik);
}

.form-kutu textarea { min-height: 110px; resize: vertical; }

/* ============ ALT BİLGİ (FOOTER) ============ */
.site-footer {
  background: var(--mor-koyu);
  color: rgba(255,255,255,0.75);
  padding: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.footer-izgara {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  position: relative;
  z-index: 2;
}

.site-footer .brand { color: var(--beyaz); margin-bottom: 1rem; }
.site-footer h4 { color: var(--beyaz); margin-bottom: 1rem; font-size: 1rem; }
.site-footer a { display: block; padding: 0.25rem 0; font-size: 0.93rem; transition: color 0.2s; }
.site-footer a:hover { color: var(--lime); }

.footer-alt {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  position: relative;
  z-index: 2;
}

.footer-slogan {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--lime);
  font-style: italic;
}

/* ============ WHATSAPP SABİT BUTON ============ */
.wa-buton {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 200;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25d366;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s;
}

.wa-buton:hover { transform: scale(1.1); }
.wa-buton svg { width: 32px; height: 32px; fill: #fff; }

/* ============ SCROLL ANİMASYONU ============ */
.gorun {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.gorun.aktif { opacity: 1; transform: none; }

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

/* ============ MOBİL ============ */
@media (max-width: 860px) {
  .menu-btn { display: block; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--beyaz);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.1rem;
    border-bottom: 1px solid #ece8f8;
    display: none;
  }

  .nav-links.acik { display: flex; }

  .iletisim-izgara { grid-template-columns: 1fr; }
  .footer-izgara { grid-template-columns: 1fr; gap: 2rem; }
  .hero { padding: 4.5rem 0 5rem; }
  .hero-logo-filigran { width: 280px; right: -60px; }
  .cta-serit { padding: 2.2rem; }
}