@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600&display=swap");

:root {
  --ink: #0b2239;
  --muted: #6a7a89;
  --brand: #0c8c73;
  --brand-weak: #e6f6f3;
  --accent: #b83b5e;
  --error: #d72c2c;
  --surface: #fff;
  --shadow: 0 16px 44px rgba(10, 36, 60, .18);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 999
}

.modal.is-open {
  display: block
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 18, 28, .55);
  backdrop-filter: blur(2px)
}

.modal__dialog {
  position: relative;
  max-width: 860px;
  margin: 6vh auto;
  background: var(--surface);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 22px 22px 26px
}

.modal__close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: #f2f4f6;
  color: #334;
  cursor: pointer;
  font-size: 20px;
  line-height: 36px
}

.modal__title {
  font-family: "Montserrat", sans-serif;;
  margin: 6px 0 4px;
  color: var(--ink);
  font: 800 28px/1.2 system-ui
}

.modal__subtitle {
  margin: 0 0 12px;
  color: var(--muted)
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px
}

.field--full {
  grid-column: 1/-1
}

label {
  font-weight: 600;
  color: var(--ink)
}

input,
select,
textarea {
  border: 1px solid #e1e6ea;
  border-radius: 10px;
  padding: 10px 12px;
  font: 500 14px/1.4 system-ui;
  outline: 0
}

input:focus,
select:focus,
textarea:focus {
  box-shadow: 0 0 0 3px var(--brand-weak);
  border-color: #bfeee3
}

.error {
  color: var(--error);
  min-height: 14px;
  font-size: 12px
}

.privacy {
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 14px
}

.btn-submit {
  position: relative;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  padding: 12px 18px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px
}

.btn-submit[disabled] {
  opacity: .7;
  cursor: not-allowed
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, .45);
  border-top-color: #fff;
  border-radius: 50%;
  display: none;
  animation: spin .7s linear infinite
}

.btn-submit.is-loading .spinner {
  display: inline-block
}

@keyframes spin {
  to {
    transform: rotate(360deg)
  }
}

@media (max-width:720px) {
  .grid {
    grid-template-columns: 1fr
  }
}

/* ==== responsive modal sizing + internal scroll ==== */

/* give the overlay a little padding so the dialog can shrink on narrow screens */
.modal {
  padding: 12px;
}

/* the dialog is a vertical layout: title, subtitle, then a scrollable form */
.modal__dialog {
  width: min(860px, 100%);
  max-height: calc(100dvh - 8vh);
  /* use dynamic viewport height on mobile */
  overflow: hidden;
  display: grid;
  grid-template-rows: auto auto 1fr;
  /* h2, p, form grows & scrolls */
}

/* make the form the scroll container */
#demoForm {
  overflow: auto;
  min-height: 0;
  /* allow the grid child to shrink */
  -webkit-overflow-scrolling: touch;
  /* smooth iOS scrolling */
  padding-right: 2px;
  /* avoid scrollbar overlap on some UAs */
}

/* keep inputs comfortable on small screens */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  /* single column sooner */
}

/* full-screen modal on very small phones */
@media (max-width: 560px) {
  .modal {
    padding: 0;
  }

  /* edge-to-edge */
  .modal__dialog {
    margin: 0;
    border-radius: 0;
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    grid-template-rows: auto auto 1fr;
  }

  .modal__title {
    font-size: 22px;
  }

  .modal__subtitle {
    font-size: 14px;
  }

  .modal__close {
    top: 8px;
    right: 8px;
  }

  #demoForm {
    padding: 0 16px max(16px, env(safe-area-inset-bottom));
  }
}

/* optional: keep the submit button visible while scrolling */
@supports (position: sticky) {
  #submitBtn {
    position: sticky;
    bottom: 0;
    margin-top: 12px;
  }
}

/* ===== Modal scroll + sticky submit ===== */

/* Make the dialog a 3-row grid: title, subtitle, scrollable form */
.modal__dialog {
  display: grid;
  grid-template-rows: auto auto 1fr;
  /* h2, p, form */
  width: min(860px, 100%);
  max-height: min(92dvh, 820px);
  /* avoid cutting on small screens */
  overflow: hidden;
}

/* The form is the scroll container */
#demoForm {
  overflow: auto;
  min-height: 0;
  /* allow grid child to shrink */
  -webkit-overflow-scrolling: touch;
  padding-right: 2px;
  /* keep scrollbar off the edge */
  padding-bottom: 80px;
  /* 40px breathing room + 40px for sticky btn */
}

/* Keep the submit button always visible (sticky within the scrolling form) */
#submitBtn {
  position: sticky;
  bottom: 24px;
  /* distance from bottom edge */
  z-index: 2;
  margin-top: 16px;
  box-shadow: 0 8px 24px rgba(184, 59, 94, 0.28);
  /* slight elevation */
}

/* Optional: soften the content behind the floating button */
#demoForm::after {
  content: "";
  display: block;
  height: 40px;
  /* breathing space at very end */
}

/* Responsive tweaks */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  /* single column sooner */
}

@media (max-width: 560px) {
  .modal {
    padding: 0;
  }

  .modal__dialog {
    margin: 0;
    border-radius: 0;
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
  }

  #demoForm {
    padding-left: 16px;
    padding-right: 16px;
    padding-bottom: 96px;
    /* bit more room on tiny screens */
  }

  .modal__title {
    font-size: 22px;
  }

  .modal__subtitle {
    font-size: 14px;
  }

  .modal__close {
    top: 8px;
    right: 8px;
  }
}

/* --- Outside padding so the dialog breathes: 40px top/bottom on desktop --- */
.modal {
  padding: 40px 16px;
}

/* outside space (not inside the form) */

/* Dialog is a grid: title, subtitle, scrollable form, fixed footer */
.modal__dialog {
  width: min(860px, 100%);
  margin: auto;
  max-height: calc(100dvh - 80px);
  /* match the 40px top/bottom padding */
  overflow: hidden;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  /* h2, p, FORM, FOOTER */
}

/* Form is the only scrollable area */
#demoForm {
  overflow: auto;
  min-height: 0;
  /* allow it to shrink inside the grid */
  -webkit-overflow-scrolling: touch;
  padding-right: 2px;
  /* keep scrollbar off the edge */
  padding-bottom: 0;
  /* no internal bottom space */
}

/* Footer stays put at the bottom of the dialog */
.modal__footer {
  padding-top: 12px;
  background: transparent;
  display: flex;
  justify-content: flex-start;
  /* or: space-between / center */
}

/* Submit button is normal (not sticky) */
#submitBtn {
  position: static;
  box-shadow: 0 8px 24px rgba(184, 59, 94, 0.18);
}

/* One-column fields sooner for comfort */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Full-height mobile sheet; outside space not needed on tiny phones */
@media (max-width: 560px) {
  .modal {
    padding: 0;
  }

  .modal__dialog {
    margin: 0;
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    border-radius: 0;
    grid-template-rows: auto auto 1fr auto;
  }

  #demoForm {
    padding: 0 16px;
  }

  .modal__footer {
    padding: 12px 16px max(16px, env(safe-area-inset-bottom));
  }

  .modal__title {
    font-size: 22px;
  }

  .modal__subtitle {
    font-size: 14px;
  }

  .modal__close {
    top: 8px;
    right: 8px;
  }
}