/* ═══════════════════════════════════════════════════════════
   BRIEFING PAGE — FORMULÁRIO DE PRÉ-BRIEFING
   Estilo de inputs: caixas com fundo (padrão do site)
   ═══════════════════════════════════════════════════════════ */

/* ── Page Layout ─────────────────────────────────────────── */
.briefing-page {
  min-height: 100vh;
  background: var(--color-surface);
  padding-top: var(--nav-height);
}

.briefing__hero {
  padding-block: var(--space-20) var(--space-12);
}

.briefing__title {
  font-size: clamp(2.5rem, 8vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--color-content);
  margin-bottom: var(--space-4);
}

.briefing__title em {
  font-style: normal;
  color: var(--color-primary);
}

.briefing__sub {
  font-size: var(--fs-md);
  color: var(--color-content-60);
  max-width: 55ch;
  line-height: 1.7;
}

/* ── Form Layout (seções stepadas) ──────────────────────── */
.briefing__form {
  display: flex;
  flex-direction: column;
  gap: clamp(4rem, 10vw, 8rem);
  padding-bottom: var(--space-24);
}

.briefing__section {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: var(--space-12);
  align-items: start;
}

/* ── Sticky sidebar com número e título ─────────────────── */
.briefing__section-head {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
}

.briefing__step-num {
  display: block;
  font-size: clamp(5rem, 10vw, 9rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.18;
  user-select: none;
  margin-bottom: -0.3em;
}

.briefing__section-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-content);
  line-height: 1.2;
}

/* ── Campo Grid ─────────────────────────────────────────── */
.briefing__fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.briefing__row {
  display: grid;
  gap: var(--space-3);
}

.briefing__row--2 {
  grid-template-columns: 1fr 1fr;
}

.briefing__row--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* ── Grupos de campo (reutiliza os tokens do form antigo) ── */
.briefing-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* Label: mesmo estilo do form original */
.briefing-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-content-30);
}

/* Input: reutiliza totalmente .form-input */
.briefing-input {
  background: var(--color-surface-02);
  border: 1px solid var(--color-border);
  color: var(--color-content);
  padding: 14px 16px;
  font-size: var(--fs-sm);
  font-family: var(--font-primary);
  border-radius: var(--radius-none);
  transition: border-color var(--dur-fast) var(--ease-smooth),
              background var(--dur-fast) var(--ease-smooth);
  outline: none;
  width: 100%;
}

.briefing-input::placeholder {
  color: var(--color-content-30);
}

.briefing-input:focus {
  border-color: var(--color-primary);
  background: rgba(49, 121, 255, 0.03);
}

/* Select */
.briefing-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 7L11 1' stroke='%23151515' stroke-opacity='0.5' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.briefing-select option {
  background: var(--color-surface-02);
  color: var(--color-content);
}

/* Textarea */
.briefing-textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

/* ── Divisor entre seções ───────────────────────────────── */
.briefing__divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* ── Submit ─────────────────────────────────────────────── */
.briefing__submit-wrap {
  padding-top: var(--space-3);
}

/* ── Status messages ────────────────────────────────────── */
.briefing-status {
  display: none;
  align-items: flex-start;
  gap: var(--space-2);
  padding: 14px 16px;
  font-size: var(--fs-sm);
  line-height: 1.5;
  border: 1px solid transparent;
  margin-top: var(--space-2);
}

.briefing-status svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}

.briefing-status--success {
  display: flex;
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.35);
  color: #15803d;
}

.briefing-status--error {
  display: flex;
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.35);
  color: #b91c1c;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .briefing__section {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .briefing__section-head {
    position: static;
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
  }

  .briefing__step-num {
    font-size: 4rem;
    margin-bottom: 0;
    opacity: 0.22;
  }
}

@media (max-width: 640px) {
  .briefing__row--2,
  .briefing__row--3 {
    grid-template-columns: 1fr;
  }
}