/* FONA İşitme Cihazları - Global Baz Stil
   Font: Aptos (sistem fontu) – fallback Segoe UI, system-ui.
   SEO/Performans: Görsel eklerken alt metni ve loading="lazy" kullanın. */

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-main);
  background-color: var(--color-bg-main);
  -webkit-font-smoothing: antialiased;
}

/* Açıklama / ikincil metinler */
p,
.section-lead {
  color: var(--color-text-soft);
}

main {
  display: block;
}

/* Başlık hiyerarşisi: tek H1, H2 bölüm, H3 alt başlık */
h1,
h2,
h3,
h4 {
  font-family: var(--font-family-heading);
  color: var(--color-primary);
  margin: 0 0 0.5em;
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-semibold);
  margin-top: 1.25em;
}

h2:first-child {
  margin-top: 0;
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  margin-top: 1em;
}

h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

p {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-soft);
}

/* Uzun metinlerde okunabilirlik: max satır genişliği 700-760px */
.prose,
.service-article,
.blog-article {
  max-width: var(--max-width-reading);
}

strong {
  font-weight: var(--font-weight-semibold);
}

/* Scroll ile yumuşak giriş (Maxtone referansı – pop/bounce yok) */
@media (prefers-reduced-motion: no-preference) {
  .animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

a {
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
  opacity: 0.88;
}

/* Section padding: mobil 48-64px, desktop 80-100px */
section {
  padding-block: var(--section-padding-y-mobile);
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1 0 auto;
}

.page-footer {
  flex-shrink: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width-page);
  margin-inline: auto;
  padding-inline: var(--space-20);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-24);
  }
}

@media (min-width: 1024px) {
  section {
    padding-block: var(--section-padding-y-desktop);
  }

  .container {
    padding-inline: 0;
  }
}

/* Mobil: fontlar hafif küçülsün, okunabilirlik korunsun */
@media (max-width: 767px) {
  html {
    font-size: 15px;
  }

  h1 {
    font-size: clamp(1.75rem, 5.5vw, var(--font-size-h1));
  }

  h2 {
    font-size: clamp(1.5rem, 4.5vw, var(--font-size-h2));
  }

  h3 {
    font-size: clamp(1.25rem, 3.5vw, var(--font-size-h3));
  }
}