/* Giao diện công cụ tính phí bản quyền nhạc — MỘT NGUỒN cho cả
   pricing.html và tinh-phi-ban-quyen-nhac.html.
   Tách ra 04/10/2026 từ khối <style> của pricing.html, giữ nguyên mọi giá trị.
   Sửa ở đây là sửa cho cả hai trang — đừng chép lại vào trang nào nữa. */

.calc {
  padding: 30px 0 80px
}

.calc-box {
  background: var(--ink-card);
  border: 1px solid var(--line-amber);
  border-radius: 26px;
  padding: 46px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 44px;
  align-items: start;
  position: relative;
  overflow: hidden
}

.calc-box::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 50%;
  height: 160%;
  background: radial-gradient(circle, rgba(245, 166, 35, .08), transparent 70%);
  pointer-events: none
}

.calc-form h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: 6px
}

.calc-form>p {
  font-size: 14px;
  color: var(--txt-dim);
  margin-bottom: 26px
}

.field {
  margin-bottom: 20px
}

.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--txt-dim);
  margin-bottom: 9px;
  text-transform: uppercase;
  letter-spacing: .04em
}

.field select,
.field input {
  width: 100%;
  padding: 13px 16px;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--txt);
  font-family: var(--body);
  font-size: 15px
}

.field select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23F5A623' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center
}

.field select:focus,
.field input:focus {
  outline: none;
  border-color: var(--amber)
}

.field .hint {
  font-size: 11.5px;
  color: var(--txt-faint);
  margin-top: 6px
}

.seg {
  display: flex;
  gap: 8px;
  flex-wrap: wrap
}

.seg button {
  flex: 1;
  min-width: 60px;
  padding: 12px 8px;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--txt-dim);
  font-family: var(--body);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s
}

.seg button.on {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
  font-weight: 600
}

.calc-result {
  background: linear-gradient(135deg, var(--amber-deep), var(--amber));
  border-radius: 20px;
  padding: 34px;
  color: var(--ink);
  position: sticky;
  top: 90px
}

.calc-result .lbl {
  font-size: 13px;
  font-weight: 600;
  opacity: .8;
  margin-bottom: 8px
}

.calc-result .amt {
  font-family: var(--display);
  font-weight: 800;
  font-size: 46px;
  line-height: 1;
  margin-bottom: 4px
}

.calc-result .amt small {
  font-size: 16px;
  font-weight: 600
}

.calc-result .per {
  font-size: 13px;
  opacity: .75;
  margin-bottom: 22px
}

.calc-result .breakdown {
  background: rgba(10, 10, 12, .12);
  border-radius: 12px;
  padding: 18px 20px;
  text-align: left;
  font-size: 13px;
  margin-bottom: 20px
}

.calc-result .breakdown .row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 7px 0;
  gap: 12px
}

.calc-result .breakdown .row b {
  font-weight: 700;
  white-space: nowrap
}

.calc-result .breakdown .row span {
  opacity: .85
}

.calc-result .breakdown .sub {
  font-size: 11px;
  opacity: .65;
  padding: 0 0 6px
}

.calc-result .breakdown .div {
  height: 1px;
  background: rgba(10, 10, 12, .15);
  margin: 6px 0
}

.calc-result .breakdown .row.tot {
  font-size: 15px;
  padding-top: 8px
}

.calc-result .disclaimer {
  font-size: 11px;
  opacity: .7;
  line-height: 1.5;
  margin-bottom: 18px
}

.calc-result .btn {
  width: 100%;
  justify-content: center
}

/* Gộp về một cột khi hẹp. Sua 01/10/2026: tu 980px den 1200px (man hep, hoac
   trinh duyet phong to — phong 150% tren MacBook Air cho be rong CSS ~1000px)
   hai cot + padding 46px + gap 44px khong du cho, cot trai bi day tran ra
   ngoai va chu bi cat. Gop ve mot cot som hon cho khoang nay.
   ⚠ Con tai dien o muc phong cao hon thi nang nguong 1200px len nua. */
@media(max-width:1200px) {
  .calc-box {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px
  }

  .calc-result {
    position: static
  }
}