/* ===== OTURUM SAYFASI ===== */

.oturum-page {
  background: #f4fbff;
}

.oturum-banner {
  min-height: 1270px;

  background-image: url("../img/oturum.png");
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;

  display: flex;
  justify-content: center;
  align-items: center;

  padding: 40px 20px;
}

/* ===== ŞEFFAF KUTU ===== */

.oturum-overlay-box {
  width: 1100px;
  max-width: 96%;

  padding: 30px;

  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.45);

  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);

  text-align: center;

 color: #b30000;

  transform: translateY(-120px);

  box-shadow: 0 0 45px rgba(0,0,0,0.35);

  transition: 0.35s ease;
}

.oturum-overlay-box:hover {
  transform: translateY(-120px) scale(1.02);

  box-shadow: 0 0 65px rgba(255,255,255,0.25);
}

/* ===== FORM ===== */

.oturum-form,
.oturum-form * {
  box-sizing: border-box;
}

.oturum-form {
  width: 100%;
}

.oturum-form h1 {
  font-size: 32px;

  margin-bottom: 20px;

  color: #e10000;

  font-weight: bold;

  text-shadow: none;
}

/* ===== GRID ===== */

.oturum-form-grid {
  display: grid;

  grid-template-columns: repeat(3, minmax(0, 1fr));

  gap: 12px;
}

/* ===== INPUTLAR ===== */

.oturum-form input,
.oturum-form select,
.oturum-form textarea,
.oturum-form .date-field {
  width: 100%;

  min-height: 46px;

  padding: 12px 14px;

  border-radius: 10px;

  border: 1px solid rgba(255,255,255,0.55);

  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);

  color: #0d2b5c;

  font-size: 14px;
  font-weight: 600;

  outline: none;
}

/* ===== PLACEHOLDER ===== */

.oturum-form input::placeholder,
.oturum-form textarea::placeholder {
  color: rgba(13,43,92,0.72);
}

/* ===== SELECT ===== */

.oturum-form select option {
  color: #111;
}

/* ===== FOCUS ===== */

.oturum-form input:focus,
.oturum-form select:focus,
.oturum-form textarea:focus,
.oturum-form .date-field:focus-within {
  border-color: #e10000;

  box-shadow: 0 0 12px rgba(225,0,0,0.45);
}

/* ===== TARİH ALANLARI ===== */

.oturum-form .date-field {
  display: flex;

  align-items: center;

  gap: 8px;
}

.oturum-form .date-field span {
  min-width: 145px;

  font-size: 13px;
  font-weight: 600;

  color: rgba(13,43,92,0.82);

  white-space: nowrap;
}

.oturum-form .date-field input[type="date"] {
  flex: 1;

  width: auto;
  min-width: 0;
  min-height: auto;

  padding: 0;

  border: none;

  background: transparent;
  backdrop-filter: none;

  color: #0d2b5c;

  font-size: 13px;
  font-weight: 600;

  cursor: pointer;
}

.oturum-form .date-field input[type="date"]:focus {
  box-shadow: none;
}

/* ===== TEXTAREA ===== */

.oturum-form textarea {
  min-height: 55px;

  resize: vertical;

  margin-top: 12px;
}

/* ===== BUTON ===== */

.oturum-form-btn {
  display: block;

  margin: 18px auto 0;

  padding: 14px 36px;

  border: none;
  border-radius: 30px;

  background: #e10000;

  color: white;

  font-size: 16px;
  font-weight: bold;

  cursor: pointer;

  box-shadow: 0 0 22px rgba(225,0,0,0.55);

  transition: 0.3s;
}

.oturum-form-btn:hover {
  background: #ff7a00;

  transform: scale(1.06);
}

/* ===== TELEFON ===== */

@media (max-width: 900px) {

  .oturum-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .oturum-form .date-field span {
    min-width: 150px;
  }
}

@media (max-width: 600px) {

  .oturum-banner {
    min-height: auto;

    padding: 80px 15px;

    background-size: cover;
  }

  .oturum-overlay-box {
    transform: none;
  }

  .oturum-overlay-box:hover {
    transform: scale(1.01);
  }

  .oturum-form-grid {
    grid-template-columns: 1fr;
  }

  .oturum-form h1 {
    font-size: 24px;
  }

  .oturum-form .date-field {
    flex-direction: column;

    align-items: flex-start;
  }

  .oturum-form .date-field span {
    min-width: auto;
  }

  .oturum-form .date-field input[type="date"] {
    width: 100%;
  }
}