/* =========================================================
   Survey forms — Buyer & Supplier Readiness Pulse
   White canvas, coloured banner per audience.
   ========================================================= */

body.sf-page {
  background: var(--white);
  color: var(--ink-900);
}

.sf-shell {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 var(--gutter) 8vh;
}

/* ---------- Banner ---------- */
.sf-banner {
  padding: clamp(1.6rem, 4vh, 2.4rem) var(--gutter) clamp(2.4rem, 6vh, 3.4rem);
  color: var(--white);
  text-align: center;
}

.sf-banner--buyer {
  background: linear-gradient(120deg, var(--blue-deep) 0%, var(--blue) 55%, #5ee0f7 130%);
}

.sf-banner--supplier {
  background: linear-gradient(120deg, #4f8f5f 0%, var(--green) 55%, #c1d177 130%);
}

.sf-banner--partner {
  background: linear-gradient(120deg, #4a3fb3 0%, #7f6fe0 55%, #c9b8ff 130%);
}

.sf-back {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: clamp(1.2rem, 4vh, 2rem);
  color: var(--white);
  opacity: .85;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: .95rem;
  text-decoration: none;
  transition: opacity .25s var(--ease);
}
.sf-back:hover { opacity: 1; }
.sf-back svg { transform: rotate(180deg); flex: none; }

.sf-kicker {
  margin: 0 0 .6rem;
  font-family: var(--font-ui);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
  opacity: .85;
}

.sf-title {
  margin: 0 auto;
  max-width: 44rem;
  font-family: "K2D", var(--font-ui);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.25;
}

.sf-subtitle {
  margin: .75rem auto 0;
  max-width: 42rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  opacity: .95;
  line-height: 1.5;
}

.sf-meta {
  margin: 1rem 0 0;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: .85rem;
  opacity: .85;
}

/* ---------- Contact details ---------- */
.sf-contact {
  margin-top: clamp(1.8rem, 5vh, 2.6rem);
  padding: 1.3rem 1.4rem 1.5rem;
  border: 1px solid var(--chip-line);
  border-radius: 14px;
  background: var(--chip-bg);
}

.sf-contact__title {
  margin: 0 0 1rem;
  font-family: "K2D", var(--font-ui);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink-900);
}

.sf-contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 640px) {
  .sf-contact__grid { grid-template-columns: 1fr; }
}

.sf-field {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: .85rem;
  color: var(--ink-700);
}

.sf-field__label { display: block; }
.sf-field .sf-req { color: var(--mark-blue); }
.sf-page--supplier .sf-field .sf-req { color: #4f8f5f; }

.sf-field input {
  padding: .65rem .8rem;
  border: 1px solid var(--chip-line);
  border-radius: 10px;
  background: var(--white);
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: .95rem;
  color: var(--ink-900);
}
.sf-field input:focus { outline: none; border-color: var(--mark-blue); }
.sf-page--supplier .sf-field input:focus { border-color: #4f8f5f; }

/* Honeypot — hidden from people, still reachable by bots that fill every field */
.sf-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Section labels ---------- */
.sf-section {
  margin: clamp(2.2rem, 5vh, 3rem) 0 1.1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--chip-line);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-600);
}
.sf-section:first-of-type { margin-top: clamp(1.8rem, 5vh, 2.6rem); }

/* ---------- Question card ---------- */
.sf-q {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 1rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--chip-line);
}
.sf-q:last-child { border-bottom: none; }

.sf-q__num {
  font-family: "K2D", var(--font-ui);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--mark-blue);
  line-height: 1.5;
}
.sf-page--supplier .sf-q__num { color: #4f8f5f; }

.sf-q__body { min-width: 0; }

.sf-q__text {
  margin: 0;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: clamp(1rem, 1.3vw, 1.08rem);
  color: var(--ink-900);
  line-height: 1.45;
}

.sf-q__hint {
  margin: .35rem 0 0;
  font-family: var(--font-ui);
  font-weight: 400;
  font-style: italic;
  font-size: .88rem;
  color: var(--ink-600);
}

/* ---------- Options: radio / checkbox ---------- */
.sf-options {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  margin-top: 1rem;
}

.sf-opt {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  padding: .65rem .85rem;
  border: 1px solid var(--chip-line);
  border-radius: 10px;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: .94rem;
  color: var(--ink-700);
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.sf-opt:hover { border-color: var(--mark-blue); background: var(--chip-bg); }
.sf-page--supplier .sf-opt:hover { border-color: var(--green); }

.sf-opt input[type="radio"],
.sf-opt input[type="checkbox"] {
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: .1rem;
  accent-color: var(--mark-blue);
}
.sf-page--supplier .sf-opt input[type="radio"],
.sf-page--supplier .sf-opt input[type="checkbox"] {
  accent-color: #4f8f5f;
}

.sf-opt:has(input:checked) {
  border-color: var(--mark-blue);
  background: var(--chip-bg);
}
.sf-page--supplier .sf-opt:has(input:checked) { border-color: #4f8f5f; }

.sf-opt--other {
  align-items: center;
  flex-wrap: wrap;
}
.sf-opt__other-input {
  flex: 1 1 10rem;
  min-width: 8rem;
  border: none;
  border-bottom: 1px solid var(--chip-line);
  padding: .2rem .1rem;
  font-family: var(--font-ui);
  font-size: .92rem;
  color: var(--ink-900);
  background: transparent;
}
.sf-opt__other-input:focus { outline: none; border-color: var(--mark-blue); }

/* Grid layout for long option lists */
.sf-options--grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .55rem;
}
@media (max-width: 640px) {
  .sf-options--grid { grid-template-columns: 1fr; }
}

/* ---------- Select dropdown ---------- */
.sf-select {
  width: 100%;
  margin-top: 1rem;
  padding: .75rem .9rem;
  border: 1px solid var(--chip-line);
  border-radius: 10px;
  background: var(--white);
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: .95rem;
  color: var(--ink-900);
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'><path d='M1 1.5 7 7.5 13 1.5' stroke='%23414857' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right .9rem center;
  cursor: pointer;
}
.sf-select:focus { outline: none; border-color: var(--mark-blue); }
.sf-page--supplier .sf-select:focus { border-color: #4f8f5f; }

/* ---------- Likert scale (1–5) ---------- */
.sf-scale {
  margin-top: 1.1rem;
}
.sf-scale__row {
  display: flex;
  gap: .6rem;
  justify-content: space-between;
}
.sf-scale__opt {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .45rem;
  padding: .7rem .4rem;
  border: 1px solid var(--chip-line);
  border-radius: 10px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink-700);
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.sf-scale__opt:hover { border-color: var(--mark-blue); background: var(--chip-bg); }
.sf-scale__opt:has(input:checked) { border-color: var(--mark-blue); background: var(--chip-bg); }
.sf-page--supplier .sf-scale__opt:hover,
.sf-page--supplier .sf-scale__opt:has(input:checked) { border-color: #4f8f5f; }
.sf-scale__opt input { accent-color: var(--mark-blue); }
.sf-page--supplier .sf-scale__opt input { accent-color: #4f8f5f; }

.sf-scale__labels {
  display: flex;
  justify-content: space-between;
  margin-top: .5rem;
  font-family: var(--font-ui);
  font-size: .8rem;
  color: var(--ink-600);
}
.sf-scale__labels span:last-child { text-align: right; }

/* ---------- Open-ended ---------- */
.sf-textarea {
  width: 100%;
  margin-top: 1rem;
  min-height: 6rem;
  padding: .8rem .9rem;
  border: 1px solid var(--chip-line);
  border-radius: 10px;
  font-family: var(--font-ui);
  font-size: .95rem;
  color: var(--ink-900);
  resize: vertical;
}
.sf-textarea:focus { outline: none; border-color: var(--mark-blue); }
.sf-page--supplier .sf-textarea:focus { border-color: #4f8f5f; }

/* ---------- Submit ---------- */
.sf-submit {
  display: flex;
  justify-content: center;
  margin-top: clamp(2rem, 5vh, 3rem);
}
.sf-submit .btn { margin-top: 0; }

.sf-note {
  margin: 1rem 0 0;
  text-align: center;
  font-family: var(--font-ui);
  font-size: .82rem;
  color: var(--ink-600);
}