/* ============================================================
   Helvetia Coris EMI — styles
   ============================================================ */
:root {
  --orange: #e87722;
  --green: #56966e;
  --green-light: #e6f0e9;
  --dark: #1a2733;
  --muted: #697078;
  --line: #d5dbe2;
  --bg: #f4f6f8;
  --card: #ffffff;
  --err: #c0392b;
  --ok: #1e7a43;
  --warn: #b7791f;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
body {
  font-family: "Sarabun", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--dark);
  font-size: 15px;
  line-height: 1.5;
}

/* ---------- topbar ---------- */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; }
.brand-mark { color: var(--orange); font-size: 13px; }
.lang { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.lang-label { color: var(--muted); font-size: 13px; }
.lang-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--dark);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 13px;
  cursor: pointer;
}
.lang-btn.active { background: var(--green); border-color: var(--green); color: #fff; }

/* ---------- layout ---------- */
.container { max-width: 960px; margin: 0 auto; padding: 18px 20px 40px; }

.doc-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12.5px;
  margin-bottom: 12px;
}
.doc-meta-ref { white-space: nowrap; }

.brand-hero {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 4px 0 0;
}
.brand-coris { font-size: 30px; font-weight: 800; color: var(--orange); letter-spacing: 1px; }
.brand-helvetia { font-size: 24px; font-weight: 700; color: var(--dark); }
.brand-title { display: flex; align-items: baseline; gap: 12px; margin: 0 0 16px; }
.brand-emi { font-size: 26px; font-weight: 800; color: var(--dark); }
.brand-sub { font-size: 18px; font-weight: 600; color: var(--muted); }

.alert {
  border-radius: 8px;
  padding: 10px 14px;
  margin: 0 0 16px;
  font-size: 13.5px;
  border: 1px solid;
}
.alert.warn { background: #fff8e6; border-color: #f0d99a; color: #7a5b12; }

/* ---------- form ---------- */
.form-section {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 16px;
}
.section-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--green);
  border-left: 4px solid var(--orange);
  padding-left: 10px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
}
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }

.field { margin-bottom: 2px; }
.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}
input[type="text"], input[type="email"], input[type="tel"], textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--dark);
}
input:focus, textarea:focus { outline: 2px solid var(--green-light); border-color: var(--green); }
textarea { resize: vertical; min-height: 44px; }

.radio-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; padding: 4px 0; }
.radio, .checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  cursor: pointer;
}
.radio input, .checkbox input { width: 16px; height: 16px; accent-color: var(--green); }
.checkbox .fake {
  display: none;
  width: 16px; height: 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  text-align: center;
  line-height: 15px;
  font-size: 12px;
  color: #fff;
  background: #fff;
}

.help-text { font-size: 12px; color: var(--muted); margin: 4px 0 0; }

/* ---------- signature ---------- */
.sig-date { max-width: 300px; }
.sig-box { margin-top: 12px; }
.sig-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}
.sig-canvas-wrap { position: relative; max-width: 460px; }
.sig-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 130px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  touch-action: none;
  cursor: crosshair;
}
.sig-name { margin-top: 6px; border-style: dashed; color: var(--muted); }
.sig-clear {
  position: absolute;
  top: 6px; right: 6px;
  background: rgba(255,255,255,.92);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3px 9px;
  font-size: 11.5px;
  cursor: pointer;
  color: var(--muted);
}
.sig-clear:hover { color: var(--err); border-color: var(--err); }
.sig-caption { font-size: 12px; color: var(--muted); margin: 5px 0 0; font-weight: 600; }

/* ---------- consent / actions ---------- */
.consent-section { border-top: 3px solid var(--green-light); }
.consent-field { display: flex; gap: 10px; align-items: flex-start; }
.consent-field .checkbox { margin-top: 2px; }
.consent-field .checkbox input { width: 18px; height: 18px; flex: none; }
.consent-label { font-size: 13px; color: var(--dark); }
.d6-note { margin: 10px 0 2px; font-size: 12px; color: var(--muted); font-style: italic; }

.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: #d56a14; }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--dark); }
.btn-secondary:hover { background: var(--green-light); }
.hidden { display: none !important; }

.send-note { font-size: 12.5px; color: var(--muted); margin: 12px 0 6px; }

.status {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  display: none;
}
.status.ok { display: block; background: #e9f7ef; color: var(--ok); border: 1px solid #bfe6cd; }
.status.err { display: block; background: #fdeceb; color: var(--err); border: 1px solid #f2c6c2; }
.status.warn { display: block; background: #fff8e6; color: var(--warn); border: 1px solid #f0d99a; }
.status.info { display: block; background: #eef4fb; color: #2c5d9c; border: 1px solid #cfe0f3; }

.field.invalid input, .field.invalid textarea,
.sig-box.invalid canvas, .consent-field.invalid {
  border-color: var(--err);
  box-shadow: 0 0 0 2px rgba(192, 57, 43, .12);
}

/* ---------- footer ---------- */
.footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--muted);
  font-size: 12.5px;
}
.collapsible { margin-bottom: 8px; }
.collapsible summary { cursor: pointer; font-weight: 600; color: var(--dark); }
.footer-note { margin: 10px 0 4px; }
.footer-brand { font-weight: 700; color: var(--orange); }

/* ---------- thanks ---------- */
.thanks-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  margin-top: 30px;
}
.thanks-card h1 { margin: 0 0 12px; color: var(--green); }
.thanks-card a { color: var(--orange); font-weight: 600; }