:root {
  --ta-blue: #4A9FE8;
  --ta-blue-dark: #2F7BC4;
  --ta-blue-deeper: #1F5E9E;
  --ta-blue-soft: #E7F2FC;
  --ta-blue-softer: #F4F9FE;
  --ta-green: #4FBE6F;
  --ta-green-dark: #379A55;
  --ink: #0F2742;
  --ink-soft: #4A5B73;
  --ink-muted: #7A8AA0;
  --line: #E2EAF3;
  --line-strong: #C9D6E5;
  --bg: #FFFFFF;
  --danger: #D94E4E;
  --warn-bg: #FFF7E5;
  --warn-ink: #8A5A00;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15, 39, 66, 0.04), 0 2px 6px rgba(15, 39, 66, 0.05);
  --shadow-md: 0 4px 14px rgba(15, 39, 66, 0.07), 0 14px 40px rgba(15, 39, 66, 0.08);
  --shadow-lg: 0 10px 36px rgba(31, 94, 158, 0.12), 0 30px 70px rgba(31, 94, 158, 0.10);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}
.brand img {
  height: 38px;
  display: block;
}
.tag-pill {
  font-size: 13px;
  font-weight: 600;
  color: var(--ta-blue-deeper);
  background: var(--ta-blue-soft);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid #D2E5F8;
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 56px;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(79, 190, 111, 0.13), transparent 65%),
    radial-gradient(800px 600px at 0% 0%, rgba(74, 159, 232, 0.18), transparent 65%),
    linear-gradient(180deg, var(--ta-blue-softer) 0%, #FFFFFF 100%);
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ta-blue-dark);
  background: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
}
.lede {
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--ink-soft);
  max-width: 680px;
  margin: 0 0 36px;
}
.role-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 8px 4px;
  box-shadow: var(--shadow-sm);
  max-width: 560px;
}
.role-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  gap: 16px;
}
.role-card__row:last-child { border-bottom: none; }
.role-label {
  color: var(--ink-muted);
  font-weight: 500;
  font-size: 14px;
}
.role-value {
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  text-align: right;
}
.role-description {
  margin-top: 48px;
  max-width: 760px;
}
.role-description h2 {
  font-size: 22px;
  margin: 0 0 12px;
  font-weight: 700;
}
.role-description p {
  color: var(--ink-soft);
  margin: 0 0 18px;
}
.role-points {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--ink-soft);
}
.role-points li {
  position: relative;
  padding: 8px 0 8px 28px;
}
.role-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ta-green);
  box-shadow: 0 0 0 4px rgba(79, 190, 111, 0.18);
}

/* ---------- Form ---------- */
.form-section {
  padding: 40px 0 100px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--ta-blue-softer) 100%);
}
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 48px);
  box-shadow: var(--shadow-lg);
}
.form-card h2 {
  font-size: 28px;
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.form-sub {
  color: var(--ink-muted);
  margin: 0 0 28px;
}
.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  font-size: 15px;
}
.field-help {
  margin: -4px 0 10px;
  font-size: 13px;
  color: var(--ink-muted);
}
.req { color: var(--danger); margin-left: 2px; }

input[type="text"],
input[type="email"],
input[type="tel"],
select {
  width: 100%;
  padding: 13px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line-strong);
  border-radius: 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
input:focus, select:focus {
  border-color: var(--ta-blue);
  box-shadow: 0 0 0 4px rgba(74, 159, 232, 0.15);
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237A8AA0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 42px;
}

.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 600px) {
  .row-2 { grid-template-columns: 1fr; }
}

/* Radio cards */
.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 480px) {
  .radio-group { grid-template-columns: 1fr; }
}
.radio-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1.5px solid var(--line-strong);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 500;
  background: #fff;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.radio-card:hover { border-color: var(--ta-blue); }
.radio-card input { accent-color: var(--ta-blue); transform: scale(1.1); }
.radio-card input:checked + span { color: var(--ta-blue-deeper); }
.radio-card:has(input:checked) {
  border-color: var(--ta-blue);
  background: var(--ta-blue-soft);
  box-shadow: 0 0 0 3px rgba(74, 159, 232, 0.12);
}

/* File upload */
.file-drop {
  position: relative;
  border: 2px dashed var(--line-strong);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  background: var(--ta-blue-softer);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.file-drop:hover, .file-drop.drag {
  border-color: var(--ta-blue);
  background: var(--ta-blue-soft);
}
.file-drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.file-drop__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--ta-blue-dark);
  pointer-events: none;
}
.file-drop__label {
  font-weight: 600;
  color: var(--ink);
}
.file-drop__name {
  font-size: 13px;
  color: var(--ta-blue-deeper);
  font-weight: 600;
  margin-top: 4px;
}

/* Warn */
.warn {
  margin: 12px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--warn-bg);
  color: var(--warn-ink);
  font-size: 14px;
  border: 1px solid #F3DFA7;
}
.hidden { display: none !important; }

/* Submit */
.btn-primary {
  width: 100%;
  margin-top: 12px;
  padding: 16px 24px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--ta-blue) 0%, var(--ta-blue-dark) 100%);
  border: none;
  border-radius: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 6px 16px rgba(74, 159, 232, 0.35);
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease;
}
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 8px 22px rgba(74, 159, 232, 0.45); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; box-shadow: none; }

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.form-msg {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 500;
}
.form-msg.success {
  background: rgba(79, 190, 111, 0.12);
  color: var(--ta-green-dark);
  border: 1px solid rgba(79, 190, 111, 0.4);
}
.form-msg.error {
  background: rgba(217, 78, 78, 0.08);
  color: var(--danger);
  border: 1px solid rgba(217, 78, 78, 0.3);
}

/* Footer */
.site-footer {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 14px;
  text-align: center;
  background: #fff;
}