/* ==================== MOBILE NAV ==================== */
@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  /* Menü açıkken header en üste çıksın */
  body.nav-open .header {
    z-index: 9999;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: #004d2e;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 100;
    overflow: hidden;
  }

  .nav.open {
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    gap: var(--space-10);
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .nav__link {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 400;
    color: var(--color-white);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .nav__link::after {
    display: none;
  }

  .nav__link:hover {
    color: var(--color-gold);
  }

  .nav__link--active {
    color: rgba(255, 255, 255, 0.6);
  }

  body.nav-open {
    overflow: hidden;
  }
}

/* ==================== TABLET ==================== */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-6xl: 3rem;
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  .spec-grid {
    grid-template-columns: 1fr;
  }
}

/* ==================== MOBILE ==================== */
@media (max-width: 768px) {
  :root {
    --text-4xl: 1.875rem;
    --text-5xl: 2.25rem;
    --text-3xl: 1.5rem;
    --container-padding: 1rem;
  }

  .section {
    padding: var(--space-12) 0;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .stats__number {
    font-size: var(--text-3xl);
  }

  .features {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .feature {
    padding: var(--space-4);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .page-hero {
    height: 300px;
  }

  .page-hero__content h1 {
    font-size: var(--text-3xl);
  }

  .card__specs {
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  /* Hero section mobile */
  .hero {
    min-height: 100vh;
  }

  .hero__logo {
    width: 100px !important;
  }

  .hero__title {
    font-size: var(--text-xl);
    letter-spacing: 0.1em;
  }

  .hero__subtitle {
    font-size: var(--text-sm);
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ==================== SMALL MOBILE ==================== */
@media (max-width: 480px) {
  .features {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .filter {
    flex-direction: column;
    align-items: center;
  }
}