/* ===========================================================
   sec-4.css — CONFIGURATIONS (price cards) + EMI CALCULATOR
   =========================================================== */
#section-4 {
  padding: 105px 0 115px;
  background: var(--bg-2);
}

.section-4-intro {
  display: grid;
  grid-template-columns: 1.05fr 0.65fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 55px;
}

.section-4-intro-copy .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: var(--gold);
}

.section-4-intro-copy .eyebrow::before {
  content: "";
  width: 44px;
  height: 1px;
  background: var(--gold);
}

.section-4-intro h2 {
  margin: 20px 0 0;
  font-family: var(--serif);
  font-size: clamp(48px, 5.4vw, 76px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.section-4-intro > p {
  margin: 0 0 5px;
  max-width: 390px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.config-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.config-card {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 1fr);
  height: 400px;
  min-height: 0;
  background: #0d1927;
  border: 1px solid rgba(255, 255, 255, 0.13);
  overflow: hidden;
  transition:
    transform 0.35s ease,
    border-color 0.35s ease;
}

.config-card:hover {
  transform: translateY(-3px);
  border-color: rgba(214,177,91,0.45);
}

.config-art {
  position: relative;
  height: 400px;
  min-height: 0;
  overflow: hidden;
  background: #101d2b;
}

.config-art img {
  display: block;
  width: 100%;
  height: 400px;
  min-height: 0;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.config-card:hover .config-art img {
  transform: scale(1.025);
}

.config-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to top,
      rgba(5,10,17,0.78) 0%,
      rgba(5,10,17,0.08) 48%,
      transparent 72%
    );
  pointer-events: none;
}

.config-image-title {
  position: absolute;
  z-index: 2;
  left: 30px;
  bottom: 27px;
  display: flex;
  flex-direction: column;
}

.config-image-title span {
  font-family: var(--serif);
  font-size: 42px;
  line-height: 1;
  color: #fff;
}

.config-image-title small {
  margin-top: 7px;
  font-family: var(--sans);
  font-size: 15px;
  color: rgba(255,255,255,0.88);
}

.config-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 45px 42px;
  background: #0b1724;
}

.config-meta {
  display: grid;
  gap: 0;
  margin: 0 0 30px;
}

.config-meta .row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 0 0 25px;
  margin-bottom: 25px;
  border-bottom: 1px solid rgba(255,255,255,0.13);
}

.config-meta .row .k {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.57);
}

.config-meta .row .v {
  font-family: var(--serif);
  font-size: 27px;
  color: var(--ink);
}

.config-meta .row .v.price {
  font-size: 43px;
  line-height: 1;
  color: var(--ink)
}

.config-card .btn {
  width: 100%;
  min-height: 56px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--gold-soft);
  letter-spacing: 0.17em;
}

.config-card .btn:hover {
  background: var(--gold);
  color: var(--accent-950);
}

.emi-wrap {
  margin-top: 18px;
}

.emi-card {
  display: grid;
  column-gap: 45px;
  background: #091522;
  border: 1px solid rgba(255,255,255,0.13);
  color: var(--ink);
  position: relative;
  grid-template-columns: minmax(220px, .36fr) minmax(0, 1.64fr);
  grid-template-rows: auto auto;
  column-gap: 0;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 25px 65px rgba(0,0,0,.25), inset 0 1px rgba(255,255,255,.04);
}

.emi-heading {
  display: flex;
  align-items: flex-start;
  grid-column: 1;
  grid-row: 1 / span 2;
  align-items: center;
  padding: 38px 30px;
  border-right: 1px solid rgba(255,255,255,.11);
  background: linear-gradient(155deg, rgba(255,255,255,.045), rgba(255,255,255,0) 72%);
}

.emi-heading .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #e1c77f;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.emi-heading .eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, #f0d88e, #b88f48);
}

.emi-heading > div { position: relative; z-index: 1; }

.emi-heading::after {
  content: "";
  position: absolute;
  right: -54px;
  bottom: -76px;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(225,195,125,.16);
  border-radius: 50%;
  box-shadow: 0 0 0 13px rgba(225,195,125,.025), 0 0 0 28px rgba(225,195,125,.02);
  pointer-events: none;
}

.emi-heading h3 {
  margin: 11px 0 0;
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  margin-top: 17px;
  font-size: clamp(32px, 3.1vw, 43px);
  line-height: .98;
  letter-spacing: -.025em;
}

.emi-heading p {
  max-width: 210px;
  margin-top: 15px;
  color: rgba(240,241,242,.64);
  font-size: 13px;
  line-height: 1.65;
}

.emi-controls {
  grid-row: 1;
  padding: 27px 28px 24px;
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,0.13);
}

.emi-field {
  min-width: 0;
  padding: 15px 15px 19px;
  border: 1px solid rgba(255,255,255,.09);
  background: linear-gradient(
    145deg, rgba(255,255,255,.035),
    rgba(255,255,255,.012));
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}

.emi-field .emi-field-top {
  justify-content: space-between;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 17px;
}

.emi-field .emi-label {
  font-family: var(--sans);
  text-transform: uppercase;
  color: rgba(255,255,255,0.58);
  font-size: 9px; 
  letter-spacing: .17em;
 }

.emi-field:focus-within {
  border-color: rgba(226,197,127,.48);
  background: linear-gradient(145deg, rgba(226,197,127,.075), rgba(255,255,255,.015));
  transform: translateY(-2px);
}

.emi-field .emi-out {
  white-space: nowrap;
  font-family: var(--serif);
  color: #f0d891; 
  font-size: 22px;
  line-height: 1;
 }

.emi-field input[type="range"] {
  display: block;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255,255,255,.2);
  cursor: pointer;
}

.emi-field input[type="range"]::-webkit-slider-thumb {
  width: 17px;
  height: 17px;
  border: 3px solid #f3dfa9;
  border-radius: 50%;
  appearance: none;
  -webkit-appearance: none;
  background: #c49a4c;
  box-shadow: 0 0 0 4px rgba(224,192,119,.12), 0 3px 9px rgba(0,0,0,.3);
}

.emi-field input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: 3px solid #f3dfa9;
  border-radius: 50%;
  background: #c49a4c;
  box-shadow: 0 0 0 4px rgba(224,192,119,.12), 0 3px 9px rgba(0,0,0,.3);
}

.emi-field input[type="range"]:focus-visible { 
  outline: 2px solid rgba(229,201,137,.7); 
  outline-offset: 8px; 
}

.emi-result {
  display: grid;
  grid-template-columns: 155px 1fr 240px;
  padding-top: 20px;
  grid-column: 2;
  grid-row: 2;
  grid-template-columns: minmax(150px, .68fr) minmax(0, 1.25fr) minmax(185px, .82fr);
  align-items: stretch;
  gap: 18px;
  padding: 20px 28px 25px;
  background: rgba(2,8,14,.2);
}

.emi-monthly-box {
  justify-content: center;
  padding: 15px 15px 19px;
  border: 1px solid rgba(255,255,255,.09);
  background: linear-gradient(145deg, rgba(255,255,255,.035), rgba(255,255,255,.012));
  display: flex;
  flex-direction: column;
}

.emi-result .er-k {
  font-family: var(--sans);
  text-transform: uppercase;
  color: rgba(255,255,255,.72); 
  font-size: 8px; 
  letter-spacing: .17em; 
}

.emi-result .er-v {
  font-family: var(--serif);
  line-height: 1;
  margin-top: 9px;
  color: #f0d58d; 
  font-size: clamp(39px, 4vw, 52px); 
}

.emi-breakdown {
  min-width: 0;
  align-self: center;
  padding: 0 4px;
}

.emi-bar {
  display: flex;
  width: 100%;
  overflow: hidden;
  background: rgba(255,255,255,0.14); 
  height: 8px; 
  border-radius: 2px; 
  box-shadow: 0 0 16px rgba(224,192,119,.08); 
}

.emi-bar .principal {
  background: linear-gradient(90deg, #c49b4e, #f0d58d); 
}

.emi-bar .interest {
  background: rgba(255,255,255,.27); 
}

.emi-split {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  font-family: var(--sans);
  color: rgba(255,255,255,0.68);
  margin-top: 12px; 
  font-size: 9px; 
}

.emi-card .btn {
  margin-top: 0;
  width: 100%;
  align-self: center;
  min-height: 58px;
  padding: 0 16px;
  border: 1px solid rgba(241,215,151,.9);
  background: linear-gradient(115deg, #f1d990, #cda957);
  color: #101925;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .14em;
  box-shadow: inset 0 1px rgba(255,255,255,.45), 0 7px 22px rgba(0,0,0,.18);
  transition: filter .25s ease, transform .25s ease;
}

.emi-card .btn:hover { 
  filter: brightness(1.08); 
  transform: translateY(-2px); 

}

.emi-card .btn svg { 
  width: 17px; 
  height: 17px; 
  flex: 0 0 auto; 
}

.config-note {
  margin-top: 18px;
  font-family: var(--sans);
  font-size: 10px;
  line-height: 1.6;
  color: var(--ink-mute);
}

@media (max-width: 1000px) {
  #section-4 {
    padding: 85px 0 95px;
  }
  .section-4-intro {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .section-4-intro > p {
    max-width: 550px;
  }
  .config-card {
    grid-template-columns: 1fr;
  }
  .config-art,
  .config-art img {
    min-height: 400px;
  }
  .config-art img { 
    object-fit: cover;
   }
  .emi-card {
     grid-template-columns: 1fr; 
     gap: 0; 
    }
  .emi-heading { 
    grid-column: 1; 
    grid-row: 1; 
    display: block; 
    padding: 0 0 24px; 
    border: 0; 
    background: none; 
  }
  .emi-heading::after { 
    right: -20px; 
    bottom: -45px; 
    width: 120px; 
    height: 120px; 
  }
  .emi-heading > div {
     max-width: 520px; 
    }
  .emi-heading p {
     max-width: 430px; 
    }
  .emi-controls { 
    grid-column: 1; grid-row: 2; 
    padding: 20px 0 24px; 
  }
  .emi-result { 
    grid-column: 1; 
    grid-row: 3; 
    grid-template-columns: minmax(140px,.65fr) minmax(0,1.2fr) minmax(175px,.8fr); padding: 22px 0 0; }
}

@media (max-width: 760px) {
  #section-4 {
    padding: 65px 0 75px;
  }
  .section-4-intro {
    gap: 20px;
    margin-bottom: 35px;
  }
  .section-4-intro h2 {
    font-size: 43px;
  }
  .section-4-intro > p {
    font-size: 15px;
  }
  .config-card {
    grid-template-columns: 1fr;
  }
  .config-art,
  .config-art img {
    min-height: 280px;
  }
  .config-art img { object-fit: cover; }
  .config-image-title {
    left: 20px;
    bottom: 20px;
  }
  .config-image-title span {
    font-size: 34px;
  }
  .config-image-title small {
    font-size: 12px;
  }
  .config-body {
    padding: 30px 22px;
  }
  .config-meta .row .v {
    font-size: 21px;
  }
  .config-meta .row .v.price {
    font-size: 34px;
  }
  .emi-wrap {
    margin-top: 12px;
  }
  .emi-card { 
    padding: 24px 20px; 
  }
  .emi-heading { 
    padding-bottom: 20px; 
  }
  .emi-controls {
    grid-template-columns: 1fr; 
    gap: 10px; 
    padding: 0 0 20px; 
  }
  .emi-field { 
    padding: 14px 14px 18px; 
  }
  .emi-field .emi-field-top { 
    flex-direction: row; 
    align-items: baseline;
    justify-content: space-between; 
    gap: 12px; 
    margin-bottom: 16px;
  }
  .emi-field .emi-out { 
    font-size: 20px;
  }
  .emi-result { 
    grid-template-columns: 1fr; 
    gap: 13px; 
    padding-top: 19px;
   }
  .emi-monthly-box { 
    min-height: 100px;
   }
  .emi-breakdown { 
    padding: 7px 2px; 
  }
  .emi-card .btn { 
    min-height: 54px; 
  }
}

@media (max-width: 420px) {
  .section-4-intro h2 {
    font-size: 38px;
  }
  .config-art,
  .config-art img {
    min-height: 240px;
  }
  .config-art img { object-fit: cover; }
  .config-body {
    padding: 25px 18px;
  }
  .config-meta .row .v.price {
    font-size: 31px;
  }
  .emi-card {
    padding: 23px 17px;
  }
  .emi-split {
    flex-direction: column;
    gap: 5px;
  }
}