/* ============================================================
   M'artte Studio — BRIEFING.CSS
   ============================================================ */

.brf-hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  padding: 120px 40px 80px;
}
.brf-bg { position: absolute; inset: 0; pointer-events: none; }
.brf-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.1;
}
.brf-orb--1 { width: 600px; height: 600px; background: var(--c5); right: -150px; top: -150px; }
.brf-orb--2 { width: 500px; height: 500px; background: var(--c3); left: -100px; bottom: -100px; }

.brf-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
  position: relative;
}

.brf-hero-text { padding-top: 20px; }

.brf-promises {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 24px 0 36px;
}
.brf-promises li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.brf-promises li i { color: var(--c5); }

.brf-alt { margin-top: 24px; }
.brf-alt p { font-size: 0.9rem; color: rgba(255,255,255,0.4); margin-bottom: 14px; }

/* FORM WRAPPER */
.brf-form-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

/* PROGRESS */
.brf-progress {
  display: flex;
  align-items: center;
  padding: 24px 32px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
  gap: 0;
}
.brf-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  transition: var(--transition);
}
.brf-step span {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  transition: var(--transition);
}
.brf-step.active span {
  background: linear-gradient(135deg, var(--c5), var(--c4));
  border-color: transparent;
  box-shadow: 0 0 15px rgba(255,32,121,0.5);
}
.brf-step.active { color: var(--white); }
.brf-step.done span {
  background: rgba(255,32,121,0.3);
  border-color: var(--c5);
  color: var(--c5);
}

.brf-step-line {
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.1);
  margin: 0 12px;
}

/* PANELS */
.brf-panel { display: none; padding: 32px; }
.brf-panel.active { display: block; }
.brf-panel h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 28px;
  color: var(--white);
}

/* FIELDS */
.brf-field { margin-bottom: 22px; }
.brf-field label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  font-weight: 600;
}
.req { color: var(--c5); }
.opt { color: rgba(255,255,255,0.3); font-weight: 400; text-transform: none; letter-spacing: 0; font-size: 0.9em; }

.brf-field input[type="text"],
.brf-field input[type="email"],
.brf-field input[type="tel"],
.brf-field textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.brf-field input:focus,
.brf-field textarea:focus {
  border-color: var(--c5);
  box-shadow: 0 0 0 3px rgba(255,32,121,0.1);
}
.brf-field input::placeholder,
.brf-field textarea::placeholder { color: rgba(255,255,255,0.2); }

/* CHECK OPTIONS */
.brf-checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.brf-check {
  display: flex;
  align-items: center;
  gap: 0;
  cursor: pointer;
}
.brf-check input { display: none; }
.brf-check span {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
  cursor: pointer;
}
.brf-check span i { color: var(--c5); font-size: 0.85rem; }
.brf-check input:checked + span {
  border-color: var(--c5);
  background: rgba(255,32,121,0.1);
  color: var(--white);
  box-shadow: 0 0 12px rgba(255,32,121,0.2);
}
.brf-check span:hover { border-color: rgba(255,32,121,0.4); color: var(--white); }

/* RADIO OPTIONS */
.brf-radios { display: flex; flex-direction: column; gap: 8px; }
.brf-radio { display: flex; align-items: center; cursor: pointer; }
.brf-radio input { display: none; }
.brf-radio span {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  width: 100%;
  transition: var(--transition);
  cursor: pointer;
}
.brf-radio span::before {
  content: '';
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  flex-shrink: 0;
  transition: var(--transition);
}
.brf-radio input:checked + span {
  border-color: var(--c5);
  background: rgba(255,32,121,0.1);
  color: var(--white);
}
.brf-radio input:checked + span::before {
  background: var(--c5);
  border-color: var(--c5);
  box-shadow: 0 0 8px rgba(255,32,121,0.6);
}

/* PRIVACY */
.brf-privacy { display: flex; flex-direction: column; gap: 12px; }
.brf-check-privacy { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; }
.brf-check-privacy input[type="checkbox"] {
  width: 18px; height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--c5);
  cursor: pointer;
}
.brf-check-privacy span { font-size: 0.85rem; color: rgba(255,255,255,0.5); line-height: 1.5; }
.brf-check-privacy a { color: var(--c5); }

/* NAV */
.brf-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.brf-submit { min-width: 200px; justify-content: center; }

/* RESPONSIVE */
@media (max-width: 1000px) {
  .brf-hero-inner { grid-template-columns: 1fr; gap: 50px; }
  .brf-hero { padding: 120px 24px 60px; }
}
@media (max-width: 600px) {
  .brf-checks { grid-template-columns: 1fr; }
  .brf-panel { padding: 24px 20px; }
  .brf-progress { padding: 18px 20px; }
}
/* ── Validación de errores ───────────────────────────────── */
.brf-error {
  border-color: #FF2079 !important;
  box-shadow: 0 0 0 3px rgba(255,32,121,0.18) !important;
}

.brf-error-msg {
  display: block;
  color: #FF2079;
  font-size: 0.8rem;
  margin-top: 6px;
  animation: brf-fadein 0.2s ease;
}

@keyframes brf-fadein {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}