:root {
  --green: #009c7f; --green-dark: #007a63; --green-light: #e3f3ef;
  --ink: #1f2a24; --muted: #6b7a72; --line: #dde5e0; --bg: #eef3f0; --white: #fff;
  --danger: #c0392b; --radius: 14px;
  --shadow: 0 4px 24px rgba(10,50,30,.06); --shadow-sm: 0 1px 3px rgba(10,50,30,.06);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif; color: var(--ink);
  background: linear-gradient(180deg, #f4f8f6 0%, var(--bg) 100%); min-height: 100vh; padding-bottom: 92px;
}

/* ---- Top bar ---- */
.topbar { background: var(--white); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1000px; margin: 0 auto; display: flex; align-items: center; gap: 14px; padding: 12px 20px; }
.brand-logo { height: 44px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 15px; } .brand-text span { font-size: 12.5px; color: var(--muted); }

/* ---- Hero ---- */
.hero { background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%); color: #fff; text-align: center; padding: 34px 20px 30px; }
.hero h1 { margin: 0 0 4px; font-size: 28px; letter-spacing: -.3px; }
.hero p { margin: 0; opacity: .92; font-size: 15px; }

/* ---- Progress (sticky) ---- */
.progress-wrap { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.progress-inner { max-width: 1000px; margin: 0 auto; display: flex; align-items: center; gap: 12px; padding: 9px 20px; }
.progress-track { flex: 1; height: 7px; background: var(--green-light); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--green), var(--green-dark)); border-radius: 999px; transition: width .3s ease; }
.progress-label { font-size: 12.5px; font-weight: 700; color: var(--green-dark); min-width: 36px; text-align: right; }

.wrap { max-width: 1000px; margin: 22px auto 0; padding: 0 20px; }

/* ---- Intro ---- */
.intro { display: flex; gap: 12px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--green); border-radius: 12px; padding: 14px 16px; font-size: 14px; line-height: 1.5; box-shadow: var(--shadow-sm); }
.intro-ic { flex: 0 0 22px; height: 22px; border-radius: 50%; background: var(--green); color: #fff; font-weight: 700; font-style: italic; font-size: 13px; display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.req { color: var(--danger); font-weight: 700; }

/* ---- Section cards ---- */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 4px 22px 24px; margin: 18px 0; }
.card-head { display: flex; align-items: center; gap: 12px; padding: 16px 0 12px; border-bottom: 1px solid var(--green-light); margin-bottom: 18px; }
.card-head .step { flex: 0 0 30px; height: 30px; border-radius: 50%; background: var(--green-light); color: var(--green-dark); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.card-head h2 { margin: 0; font-size: 17px; color: var(--green-dark); }

/* ---- Sous-groupes ---- */
.subgroup-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .7px; color: var(--green-dark); margin: 22px 0 12px; padding-left: 11px; border-left: 3px solid var(--green); }
.subgroup-title:first-of-type { margin-top: 4px; }
.grid + .subgroup-title { margin-top: 24px; }

.grid { display: grid; gap: 16px 20px; }
.grid + .grid { margin-top: 16px; }
.grid.cols-1 { grid-template-columns: 1fr; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }

/* ---- Fields ---- */
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 13px; font-weight: 600; color: #2c3a33; display: flex; align-items: center; gap: 6px; }
.rtl-tag { font-size: 10px; font-weight: 700; color: var(--green-dark); background: var(--green-light); padding: 1px 6px; border-radius: 999px; }
.control { position: relative; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 12px; border: 1.5px solid var(--line); border-radius: 10px; font-size: 14.5px;
  font-family: inherit; background: #fbfdfc; color: var(--ink); transition: border-color .15s, box-shadow .15s, background .15s;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: #c2cfc8; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green); background: #fff; box-shadow: 0 0 0 3px var(--green-light); }
.field.valid input, .field.valid select, .field.valid textarea { border-color: #8ccdb9; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--danger); background: #fdf4f3; }
.field .help { font-size: 11.5px; color: var(--muted); line-height: 1.35; }
.field .field-err { font-size: 11.5px; color: var(--danger); font-weight: 600; }
.field .other-input { margin-top: 8px; }
textarea { resize: vertical; min-height: 46px; }

/* ---- Sticky submit bar ---- */
.submit-bar { position: fixed; left: 0; right: 0; bottom: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-top: 1px solid var(--line); box-shadow: 0 -4px 20px rgba(10,50,30,.06); z-index: 30; }
.submit-bar-inner { max-width: 1000px; margin: 0 auto; display: flex; align-items: center; justify-content: flex-end; gap: 14px; padding: 12px 20px; }
.btn-primary { background: var(--green); color: #fff; border: none; border-radius: 10px; padding: 12px 26px; font-size: 15px; font-weight: 600; cursor: pointer; transition: background .15s, transform .05s; }
.btn-primary:hover { background: var(--green-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: .55; cursor: default; }

.form-msg { margin: 14px 0 0; font-size: 14px; }
.form-msg.err { color: var(--danger); font-weight: 600; background: #fdf4f3; border: 1px solid #f3c9c4; border-radius: 10px; padding: 12px 14px; }

/* ---- Success ---- */
.success-panel { display: flex; justify-content: center; padding: 44px 20px 90px; }
.success-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 42px 34px; max-width: 540px; text-align: center; }
.success-card .check { width: 72px; height: 72px; border-radius: 50%; background: var(--green-light); color: var(--green-dark); font-size: 38px; line-height: 72px; margin: 0 auto 16px; }
.success-card h2 { color: var(--green-dark); margin: 0 0 8px; }
.success-card > p { color: #4a574f; margin: 6px 0; }
.success-card .ref { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; margin: 20px 0 8px; }
.ref-box { display: inline-block; font-size: 22px; font-weight: 700; color: var(--green-dark); background: var(--green-light); border-radius: 10px; padding: 10px 22px; letter-spacing: 1px; }
.success-card .muted { color: var(--muted); font-size: 13px; margin-top: 18px; }

.site-footer { text-align: center; color: var(--muted); font-size: 13px; padding: 22px; }

@media (max-width: 600px) {
  .grid.cols-1, .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 23px; }
  .submit-bar-inner { align-items: stretch; }
  .btn-primary { width: 100%; }
}