/* ===== Collab Page – همکاری با دی‌یر ===== */

.collab-page {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  padding: clamp(72px, 10vh, 96px) 16px 96px;
  background:
    radial-gradient(
      ellipse 83.45% 50.99% at 100% 72.62%,
      #bc3c3c 0%,
      rgba(255, 255, 255, 0) 100%
    ),
    radial-gradient(
      ellipse 76.13% 72.86% at 29.43% 60.99%,
      #4b8a45 0%,
      rgba(255, 255, 255, 0) 100%
    ),
    radial-gradient(
      ellipse 36.42% 109.3% at 79.37% 12.05%,
      #7300ff 0%,
      rgba(255, 255, 255, 0) 100%
    ),
    #ffffff;

  background-size: 180% 180%;
  background-position: center top;
  background-repeat: no-repeat;

  overflow-y: auto; 
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
}

/* گوزن برگشت */
.collab__back {
  position: absolute;
  left: 0;
  top: 0;
  width: clamp(72px, 8vw, 120px);
  height: clamp(72px, 8vw, 120px);
  display: block;
  z-index: 2;
}
.collab__back img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

/* ستون اصلی محتوا */
.collab__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px; /* نزدیک همون 453 فیگما + حاشیه */
  margin: 0 auto;
  text-align: center;
  font-family: "B Zar", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* هدر */
.collab__header {
  margin-bottom: clamp(48px, 7vh, 64px);
}

.collab__title {
  font-family: "B Zar Bold";
  font-weight: 700;
  font-size: clamp(40px, 8vw, 128px);
  color: #ffffff;
  text-shadow: 0 0 24px rgba(0, 0, 0, 0.6);
  margin: 0 auto 12px auto;
  width: fit-content;
  max-width: 100%;
  text-align: center;
  display: block;
}

.collab__subtitle {
  font-size: clamp(18px, 2.4vw, 32px);
  color: #000000;
  margin: 0;
}

/* استک سکشن‌ها */
.collab__sections {
  display: flex;
  flex-direction: column;
  gap: 70px; /* مثل فیگما */
}

/* هر سکشن */
.collab-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px; /* فاصله تیتر تا باکس‌ها */
}

.collab-section__title {
  font-family: "B Zar Bold";
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700;
  color: #000000;
  margin: 0;
}

/* باکس‌ها (Box A / Box B) */
.collab-box {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
}

/* تیتر سفید داخل باکس */
.collab-box__title {
  font-family: "B Zar Bold";
  color: #ffffff;
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 700;
  margin: 0;
  text-shadow: 0 0 16px rgba(0, 0, 0, 0.55);
}

/* متن مشکی داخل باکس */
.collab-box__body {
  color: #000000;
  font-size: clamp(16px, 2.2vw, 24px);
  font-weight: 400;
  line-height: 1.9;
  margin: 0;
}

/* فرم */
.collab-section--form {
  margin-bottom: 16px;
}

.collab-form {
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.16);
  padding: 20px 20px 24px;
  box-sizing: border-box;
  color: #000000;
}

.collab-form__hint {
  font-size: 14px;
  opacity: 0.8;
  margin: 0 0 16px;
}

.collab-form__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.collab-form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 768px) {
  .collab-form__row {
    grid-template-columns: 1fr;
  }
}

.collab-form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  text-align: right;
}

.collab-form__field span {
  font-weight: 600;
  color: #000000;
}

.collab-form__field input,
.collab-form__field textarea,
.collab-form__field select {
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.25);
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.96);
  outline: none;
  resize: vertical;
  transition: border-color 0.18s ease, box-shadow 0.18s ease,
    background 0.18s ease;
  color: #000000;
}

.collab-form__field input:focus,
.collab-form__field textarea:focus,
.collab-form__field select:focus {
  border-color: #000000;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.16);
  background: #ffffff;
}

/* دکمه ارسال */
.collab-form__submit {
  align-self: center;
  margin-top: 8px;
  padding: 10px 32px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  background: #000000;
  color: #ffffff;
  letter-spacing: 0.06em;
  transition: transform 0.16s ease, box-shadow 0.16s ease,
    background 0.16s ease;
}

.collab-form__submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  background: #111111;
}

.collab-form__submit:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ریسپانسیو موبایل */
@media (max-width: 640px) {
  .collab-page {
    padding-top: 96px;
    padding-bottom: 72px;
  }

  .collab__inner {
    max-width: 100%;
  }

  .collab__title {
    font-size: clamp(32px, 10vw, 48px);
  }

  .collab__subtitle {
    font-size: 16px;
  }
}