html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden; /* Scroll'u engelle */
    background-color: #000; /* Video yüklenmezse diye siyah arka plan */
}

.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: 1;
}

.video-background video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100vw;
    min-height: 100vh;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
}

.black-filter {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.623); /* Yarı saydam siyah filtre */
    z-index: 2;
}

.content {
    position: relative;
    z-index: 3;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.border {
    position: relative;
    width: calc(100vw - 6rem);
    height: calc(100vh - 6rem);
    margin: 3rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 5px solid rgb(255, 255, 255);
}

.main-content {
  position: relative;
  z-index: 4;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  pointer-events: auto;
  gap: 1.5rem;
}

.main-content.minimal {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.2rem;
  background: none;
  z-index: 3;
}

.logo-minimal {
  height: 64px;
  margin-bottom: 1.2rem;
}

.slogan {
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
  text-align: center;
  margin-bottom: 0.8rem;
  letter-spacing: 1px;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-form input[type="email"] {
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 2rem 0 0 2rem;
  outline: none;
  font-size: 1rem;
  min-width: 220px;
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.newsletter-form input[type="email"]::placeholder {
  color: #eee;
  opacity: 0.8;
}

.newsletter-form button {
  padding: 0.7rem 1.2rem;
  border: none;
  border-radius: 0 2rem 2rem 0;
  background: #fff;
  color: #222;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.newsletter-form button:hover {
  background: #222;
  color: #fff;
}

.social-icons {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
}

.social-icons a {
  display: flex;
  align-items: center;
  transition: transform 0.2s;
}

.social-icons a:hover {
  transform: scale(1.15);
}

.footer {
  color: #fff;
  opacity: 0.7;
  font-size: 0.95rem;
  text-align: center;
  margin-top: 1.5rem;
  position: fixed;
  bottom: 1rem;
}

@media (max-width: 768px) {
    .border {
        width: calc(100vw - 2rem);
        height: calc(100vh - 9rem);
        margin: 1rem;
    }

    .main-content {
        gap: 1.5rem;
    }

    .slogan {
        font-size: 1.2rem;
        letter-spacing: 0.5px;
    }

    .newsletter-form input[type="email"] {
        min-width: 180px;
    }

    .newsletter-form button {
        padding: 0.7rem 1rem;
    }

    .footer {
        font-size: 0.85rem;
    }

    .slogan {
        font-size: 1.1rem;
        margin-bottom: 0.6rem;
    }

    .slogan {
        font-size: 1rem;
        letter-spacing: 0.3px;
    }

    .newsletter-form input[type="email"] {
        min-width: 160px;
        font-size: 0.9rem;
    }

    .newsletter-form button {
        font-size: 0.9rem;
    }
}