.demo-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 13%, rgba(25,221,242,.1), transparent 25%),
    linear-gradient(180deg, #05090d 0%, #071018 100%);
}

.demo-header { grid-template-columns: 1fr auto; }
.demo-back { color: #9dacb5; font: 600 10px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.demo-back:hover { color: var(--cyan); }

.demo-main {
  display: grid;
  grid-template-columns: minmax(0,.82fr) minmax(620px,1.18fr);
  gap: 7vw;
  max-width: 1680px;
  margin: 0 auto;
  padding: 145px 4vw 100px;
}

.demo-intro { align-self: start; position: sticky; top: 125px; }
.demo-kicker { display: flex; align-items: center; gap: 12px; color: var(--cyan); font: 500 10px var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.demo-kicker span { width: 30px; height: 1px; background: var(--cyan); }
.demo-intro > h1 { max-width: 750px; margin: 28px 0; font-size: clamp(48px,5.2vw,82px); line-height: .96; letter-spacing: -.065em; font-weight: 650; }
.demo-intro > h1 em { color: var(--cyan); font-style: normal; }
.demo-lead { max-width: 690px; margin: 0; color: #a7b4bc; font-size: 16px; line-height: 1.75; }

.demo-expect { margin-top: 58px; border-top: 1px solid var(--line2); }
.demo-expect > span { display: block; padding: 16px 0; color: #71838e; font: 600 9px var(--mono); letter-spacing: .13em; }
.demo-expect article { display: grid; grid-template-columns: 42px 1fr; gap: 18px; padding: 19px 0; border-top: 1px solid var(--line); }
.demo-expect article > b { color: var(--cyan); font: 500 9px var(--mono); }
.demo-expect h2 { margin: 0 0 7px; font-size: 15px; }
.demo-expect p { margin: 0; color: #7f909a; font-size: 11px; line-height: 1.6; }
.demo-proof { margin-top: 32px; padding: 23px 25px; border: 1px solid #24404d; background: rgba(10,28,38,.55); }
.demo-proof strong { color: var(--cyan); font-size: 14px; }
.demo-proof p { margin: 8px 0 0; color: #8fa0aa; font-size: 11px; line-height: 1.6; }

.demo-form-panel { padding: 42px; border: 1px solid #24404d; background: rgba(9,18,25,.88); box-shadow: 0 40px 100px rgba(0,0,0,.36); }
.form-heading { padding-bottom: 35px; border-bottom: 1px solid var(--line2); }
.form-heading > span { color: var(--cyan); font: 600 9px var(--mono); letter-spacing: .14em; }
.form-heading h2 { margin: 15px 0 12px; font-size: clamp(34px,3.2vw,54px); line-height: 1; letter-spacing: -.05em; }
.form-heading p { max-width: 650px; margin: 0; color: #82939d; font-size: 12px; line-height: 1.65; }

.demo-form-panel fieldset { margin: 0; padding: 35px 0; border: 0; border-bottom: 1px solid var(--line); }
.demo-form-panel legend { width: 100%; margin-bottom: 25px; color: white; font-size: 14px; font-weight: 700; }
.demo-form-panel legend b { margin-right: 12px; color: var(--cyan); font: 500 9px var(--mono); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 18px; }
.form-grid label, .message-field { display: grid; gap: 9px; }
.form-grid label.wide { grid-column: 1 / -1; }
.form-grid label > span, .message-field > span { color: #adbbc3; font: 500 10px var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.form-grid small, .message-field small { color: #657780; font-size: 9px; text-transform: none; }

.demo-form-panel input,
.demo-form-panel select,
.demo-form-panel textarea {
  width: 100%;
  border: 1px solid #294553;
  border-radius: 0;
  outline: none;
  background: #071018;
  color: white;
  font: 500 14px var(--sans);
  transition: border-color .2s, box-shadow .2s;
}
.demo-form-panel input, .demo-form-panel select { height: 52px; padding: 0 15px; }
.demo-form-panel textarea { min-height: 135px; padding: 15px; resize: vertical; line-height: 1.55; }
.demo-form-panel select { appearance: none; background-image: linear-gradient(45deg,transparent 50%,#6f8793 50%),linear-gradient(135deg,#6f8793 50%,transparent 50%); background-position: calc(100% - 18px) 23px,calc(100% - 13px) 23px; background-size: 5px 5px; background-repeat: no-repeat; }
.demo-form-panel input:focus,
.demo-form-panel select:focus,
.demo-form-panel textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(25,221,242,.08); }
.demo-form-panel input:user-invalid,
.demo-form-panel select:user-invalid { border-color: var(--red); }
::placeholder { color: #52646e; }

.focus-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 24px; }
.focus-grid label { position: relative; }
.focus-grid input { position: absolute; opacity: 0; pointer-events: none; }
.focus-grid span { display: flex; align-items: center; min-height: 46px; padding: 0 13px 0 39px; border: 1px solid #294553; color: #9babb4; font-size: 11px; cursor: pointer; }
.focus-grid span::before { content: ""; position: absolute; left: 14px; width: 12px; height: 12px; border: 1px solid #49616e; }
.focus-grid input:checked + span { border-color: var(--cyan); color: white; background: rgba(25,221,242,.06); }
.focus-grid input:checked + span::before { border-color: var(--cyan); background: var(--cyan); box-shadow: inset 0 0 0 3px #071018; }

.consent { display: grid; grid-template-columns: 18px 1fr; gap: 12px; margin: 28px 0; color: #899aa4; font-size: 10px; line-height: 1.55; cursor: pointer; }
.consent input { width: 16px; height: 16px; margin: 0; accent-color: var(--cyan); }
.submit-row { display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: center; }
.submit-row button { min-height: 56px; padding: 0 23px; border: 0; background: var(--cyan); color: #001015; font: 700 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
.submit-row button:hover { background: white; }
.submit-row button:disabled { opacity: .55; cursor: wait; }
.submit-row button span { margin-left: 20px; }
.submit-row p { margin: 0; color: #697b85; font-size: 10px; line-height: 1.55; }
.form-status { min-height: 20px; margin-top: 18px; color: var(--cyan); font: 500 10px var(--mono); line-height: 1.6; }
.form-status.error { color: var(--red); }
.form-trap { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; }

.demo-footer { max-width: 1680px; margin: 0 auto; }

/* Light theme shared with the main Titan landing page */
.demo-page {
  background: #f4f7f8;
  color: #10191f;
}
.demo-page .demo-header {
  background: rgba(255,255,255,.95);
  border-bottom-color: #dce4e7;
  box-shadow: 0 8px 30px rgba(24,45,56,.04);
}
.demo-page .demo-back { color: #52636d; }
.demo-page .demo-back:hover { color: #087e91; }
.demo-page .demo-lead { color: #435761; }
.demo-page .demo-expect { border-color: #c7d3d8; }
.demo-page .demo-expect > span { color: #60737d; }
.demo-page .demo-expect article { border-color: #d7e0e4; }
.demo-page .demo-expect h2 { color: #14242c; }
.demo-page .demo-expect p { color: #526670; }
.demo-page .demo-proof { border-color: #bfd0d6; background: #eef7f8; }
.demo-page .demo-proof strong { color: #087e91; }
.demo-page .demo-proof p { color: #465a65; }
.demo-page .demo-form-panel {
  border-color: #c8d4d9;
  background: #fff;
  box-shadow: 0 24px 70px rgba(28,52,64,.1);
}
.demo-page .form-heading { border-color: #d7e0e4; }
.demo-page .form-heading > span,
.demo-page .demo-form-panel legend b { color: #087e91; }
.demo-page .form-heading h2,
.demo-page .demo-form-panel legend { color: #10191f; }
.demo-page .form-heading p { color: #526670; }
.demo-page .demo-form-panel fieldset { border-color: #d7e0e4; }
.demo-page .form-grid label > span,
.demo-page .message-field > span { color: #40555f; }
.demo-page .form-grid small,
.demo-page .message-field small { color: #70828b; }
.demo-page .demo-form-panel input,
.demo-page .demo-form-panel select,
.demo-page .demo-form-panel textarea {
  border-color: #bdcbd1;
  background-color: #f8fafb;
  color: #14242c;
}
.demo-page .demo-form-panel select { color-scheme: light; }
.demo-page .demo-form-panel input:focus,
.demo-page .demo-form-panel select:focus,
.demo-page .demo-form-panel textarea:focus { border-color: #087e91; box-shadow: 0 0 0 3px rgba(8,126,145,.1); }
.demo-page ::placeholder { color: #7a8a92; }
.demo-page .focus-grid span { border-color: #bdcbd1; color: #40555f; background: #f8fafb; }
.demo-page .focus-grid span::before { border-color: #83969f; }
.demo-page .focus-grid input:checked + span { border-color: #087e91; color: #10191f; background: #eef7f8; }
.demo-page .focus-grid input:checked + span::before { border-color: #087e91; background: #19ddf2; box-shadow: inset 0 0 0 3px #fff; }
.demo-page .consent { color: #526670; }
.demo-page .submit-row button:hover { background: #10191f; color: #fff; }
.demo-page .submit-row p { color: #60737d; }
.demo-page .form-status { color: #087e91; }
.demo-page .demo-footer { background: #fff; border-color: #d8e1e5; }
.demo-page .demo-footer p,
.demo-page .demo-footer a:not(.logo) { color: #526670; }

@media (max-width: 1100px) {
  .demo-main { grid-template-columns: 1fr; max-width: 900px; }
  .demo-intro { position: static; }
}

@media (max-width: 720px) {
  .demo-header { padding-inline: 20px; }
  .demo-back { font-size: 0; }
  .demo-back::after { content: "← Back"; font-size: 9px; }
  .demo-main { padding: 105px 20px 70px; }
  .demo-intro > h1 { font-size: 49px; }
  .demo-form-panel { padding: 28px 20px; }
  .form-grid, .focus-grid { grid-template-columns: 1fr; }
  .form-grid label.wide { grid-column: 1; }
  .submit-row { grid-template-columns: 1fr; }
  .submit-row button { width: 100%; }
}