/* ==========================================================================
   TEFAŞ — Yerleşim: container, section, grid, header, footer
   ========================================================================== */

/* --- Sayfa gövdesi ------------------------------------------------------ */
.tf-page {
  background: var(--tf-white);
  color: var(--tf-ink);
  overflow-x: hidden;
}

/* --- Container ---------------------------------------------------------- */
.tf-container {
  max-width: var(--tf-container);
  margin: 0 auto;
  padding-left: var(--tf-gutter);
  padding-right: var(--tf-gutter);
}

/* --- Section ------------------------------------------------------------ */
.tf-section { position: relative; }
.tf-section > .tf-container {
  padding-top: var(--tf-section-y);
  padding-bottom: var(--tf-section-y);
}

.tf-section--white { background: var(--tf-white); }
.tf-section--alt   { background: var(--tf-bg-alt); }
.tf-section--blue  { background: var(--tf-blue); color: #fff; }
.tf-section--navy  { background: var(--tf-navy); color: #fff; }
.tf-section--top-line { border-top: 1px solid var(--tf-line); }

.tf-section--tight > .tf-container { padding-top: 80px; padding-bottom: 80px; }
.tf-section--slim  > .tf-container { padding-top: 56px; padding-bottom: 56px; }

/* --- Grid yardımcıları -------------------------------------------------- */
.tf-grid { display: grid; }
.tf-grid--gap-24 { gap: 24px; }
.tf-grid--gap-32 { gap: 32px; }
.tf-grid--gap-40 { gap: 40px; }
.tf-grid--gap-56 { gap: 56px; }

/* Otomatik sığdırma — minimum kolon genişliğine göre kırılır */
.tf-grid--auto-150 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.tf-grid--auto-160 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.tf-grid--auto-240 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.tf-grid--auto-250 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.tf-grid--auto-280 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.tf-grid--auto-300 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.tf-grid--auto-320 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.tf-grid--start   { align-items: start; }
.tf-grid--stretch { align-items: stretch; }

/* Hücreler arası 1px çizgi efekti (arka plan sızdırma tekniği) */
.tf-grid--hairline {
  gap: 1px;
  background: var(--tf-line);
  border: 1px solid var(--tf-line);
}

/* --- Header ------------------------------------------------------------- */
.tf-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--tf-line);
}

.tf-header__inner {
  max-width: var(--tf-container);
  margin: 0 auto;
  padding: 16px var(--tf-gutter);
  display: flex;
  align-items: center;
  gap: 32px;
}

.tf-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.tf-header__logo .tf-logo { height: 42px; }

.tf-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 15px;
  font-weight: 500;
}
.tf-nav a { color: var(--tf-ink); }
.tf-nav__cta-mobile { display: none; }
.tf-nav a:hover,
.tf-nav a.is-active { color: var(--tf-red); }

.tf-header__cta { flex-shrink: 0; }

/* Mobil menü düğmesi — geniş ekranda gizli */
.tf-nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--tf-line-strong);
  color: var(--tf-navy);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.tf-nav-toggle:hover { border-color: var(--tf-blue); }
.tf-nav-toggle__bars,
.tf-nav-toggle__bars::before,
.tf-nav-toggle__bars::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  content: '';
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.tf-nav-toggle__bars::before { transform: translateY(-6px); }
.tf-nav-toggle__bars::after  { transform: translateY(4px); }
.tf-nav-toggle[aria-expanded="true"] .tf-nav-toggle__bars { background: transparent; }
.tf-nav-toggle[aria-expanded="true"] .tf-nav-toggle__bars::before { transform: rotate(45deg); }
.tf-nav-toggle[aria-expanded="true"] .tf-nav-toggle__bars::after  { transform: translateY(-2px) rotate(-45deg); }

@media (max-width: 900px) {
  .tf-header__inner { gap: 16px; }
  .tf-nav-toggle { display: flex; }

  .tf-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 8px var(--tf-gutter) 16px;
    background: #fff;
    border-bottom: 1px solid var(--tf-line);
  }
  .tf-nav.is-open { display: flex; }
  .tf-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--tf-line);
    font-size: 16px;
  }
  .tf-nav a:last-child { border-bottom: 0; }
  .tf-nav__cta-mobile {
    display: block;
    margin-top: 12px;
    padding: 14px 20px;
    background: var(--tf-red);
    color: #fff;
    font-weight: 700;
    text-align: center;
    border-bottom: 0;
  }
  .tf-nav__cta-mobile:hover { background: var(--tf-red-dark); color: #fff; }

  .tf-header__cta { display: none; }
}

/* --- Footer ------------------------------------------------------------- */
.tf-footer {
  background: var(--tf-navy);
  color: #fff;
}
.tf-footer__inner {
  max-width: var(--tf-container);
  margin: 0 auto;
  padding: 60px var(--tf-gutter) 96px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}
/* components.css'teki .tf-logo (42px) sonra yüklendiği için eşit
   özgüllükte kazanıyordu; kapsayıcıyla özgüllüğü artırıyoruz. */
.tf-footer .tf-footer__logo { height: 46px; }
.tf-footer__about {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.65);
  max-width: 30ch;
}
.tf-footer__title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tf-red);
}
.tf-footer__body {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  font-style: normal;
  color: rgba(255, 255, 255, 0.75);
}
.tf-footer__links {
  margin-top: 12px;
  display: grid;
  gap: 8px;
  font-size: 14px;
}
.tf-footer a { color: #fff; }
.tf-footer a:hover { color: var(--tf-red); }
.tf-footer a.tf-footer__link--accent { color: var(--tf-red); }
.tf-footer a.tf-footer__link--accent:hover { color: #fff; }

.tf-footer__legal {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding: 20px var(--tf-gutter);
  max-width: var(--tf-container);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* --- Sabit mobil CTA barı ---------------------------------------------- */
.tf-mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.97);
  border-top: 1px solid var(--tf-line);
  padding: 10px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.tf-mobile-bar__text {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  line-height: 1.35;
  color: var(--tf-muted);
}
.tf-mobile-bar .tf-btn { flex-shrink: 0; }

/* Bar açıkken footer'ın altında boşluk bırak */
body.tf-has-mobile-bar .tf-footer__legal { padding-bottom: 84px; }

@media (min-width: 901px) {
  .tf-mobile-bar { display: none; }
  body.tf-has-mobile-bar .tf-footer__legal { padding-bottom: 20px; }
}

/* --- Genel duyarlılık --------------------------------------------------- */
@media (max-width: 720px) {
  :root {
    --tf-section-y: 60px;
    --tf-gutter: 18px;
  }
  .tf-section--tight > .tf-container { padding-top: 56px; padding-bottom: 56px; }
  .tf-footer__inner { padding: 48px var(--tf-gutter) 72px; gap: 32px; }
}