/* ────────────────────────────────────────────────────────────────
   Agent Idea Intake — local prototype
   Plain CSS, no framework. Mobile-friendly. Boomi-ish palette.
   ──────────────────────────────────────────────────────────────── */

:root {
  --color-bg: #f7f8fa;
  --color-card: #ffffff;
  --color-text: #1a1a2e;
  --color-muted: #5f6c80;
  --color-border: #d8dde6;
  --color-border-focus: #1f4e79;
  --color-primary: #1f4e79;
  --color-primary-hover: #16385a;
  --color-accent: #b51a76;
  --color-success: #1d8348;
  --color-error: #c0392b;
  --color-required: #c0392b;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(20, 30, 50, 0.06), 0 8px 24px rgba(20, 30, 50, 0.04);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* ── Header ─────────────────────────────────────────────────── */
.page-header { margin-bottom: 2rem; }

.brand {
  display: inline-block;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0;
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 56ch;
}

/* ── Form sections ──────────────────────────────────────────── */
.form-section {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 0.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.section-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

/* ── Fields ─────────────────────────────────────────────────── */
.field {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.375rem;
  color: var(--color-text);
}

.required {
  color: var(--color-required);
  font-weight: 400;
  margin-left: 2px;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font: inherit;
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.15);
}

textarea {
  resize: vertical;
  min-height: 80px;
  font-family: var(--font-stack);
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='%235f6c80' d='M4 6l4 4 4-4z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.helper {
  margin: 0.375rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}

.field.invalid input,
.field.invalid textarea,
.field.invalid select {
  border-color: var(--color-error);
}

.field.invalid .helper { color: var(--color-error); }

/* ── Footer ─────────────────────────────────────────────────── */
.form-footer {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: 0;
  padding: 0.75rem 1.5rem;
  font: inherit;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.15s, transform 0.05s;
}

.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }
.btn-primary:active:not(:disabled) { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 0.625rem 1.25rem;
  font: inherit;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
}

.btn-secondary:hover { background: rgba(31, 78, 121, 0.06); }

.status { margin: 0; font-size: 0.875rem; color: var(--color-muted); }
.status.error { color: var(--color-error); }
.status.success { color: var(--color-success); }

/* ── Success card ───────────────────────────────────────────── */
.success-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--color-success);
}

.success-card h2 { margin: 0.5rem 0; color: var(--color-text); }
.success-card p { color: var(--color-muted); margin: 0.5rem 0; }
.success-card .muted { font-size: 0.875rem; }

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(29, 131, 72, 0.12);
  color: var(--color-success);
  border-radius: 50%;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.success-card .btn-secondary { margin-top: 1rem; }

/* ── Mobile tweaks ──────────────────────────────────────────── */
@media (max-width: 540px) {
  .container { padding: 1.5rem 1rem 3rem; }
  .form-section { padding: 1.25rem 1rem 0.25rem; }
  .page-header h1 { font-size: 1.625rem; }
}