/* ============================================================
   Brif — Ultra-modern redesign
   ============================================================ */

.brif-shell {
  --brif-accent:        #2563eb;
  --brif-accent-2:      #7c3aed;
  --brif-accent-3:      #ec4899;
  --brif-accent-soft:   rgba(37, 99, 235, .08);
  --brif-accent-ring:   rgba(37, 99, 235, .22);
  --brif-surface:       rgba(255,255,255,.88);
  --brif-surface-glass: rgba(255,255,255,.6);
  --brif-border:        rgba(15, 23, 42, .08);
  --brif-border-input:  rgba(15, 23, 42, .16);
  --brif-text:          #0f172a;
  --brif-text-2:        #475569;
  --brif-text-3:        #94a3b8;
  --brif-radius:        24px;
  --brif-radius-sm:     16px;
  --brif-radius-xs:     12px;

  position: relative;
  margin: 0 0 40px;
  padding: 0;
  background: var(--brif-surface);
  border: 1px solid rgba(124,58,237,.15);
  border-radius: var(--brif-radius);
  box-shadow:
    0 1px 2px rgba(0,0,0,.04),
    0 24px 60px -12px rgba(37,99,235,.15),
    0 10px 40px -8px rgba(124,58,237,.12);
  overflow: hidden;
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
}

/* Фоновые декоративные орбы */
.brif-shell::before,
.brif-shell::after {
  content: "";
  position: absolute; border-radius: 50%;
  pointer-events: none; filter: blur(80px);
  z-index: 0;
}
.brif-shell::before {
  width: 420px; height: 420px;
  top: -200px; left: -120px;
  background: radial-gradient(circle, rgba(124,58,237,.35), transparent 70%);
  animation: brifOrb 18s ease-in-out infinite;
}
.brif-shell::after {
  width: 380px; height: 380px;
  bottom: -180px; right: -100px;
  background: radial-gradient(circle, rgba(236,72,153,.3), transparent 70%);
  animation: brifOrb 22s ease-in-out infinite reverse;
}
@keyframes brifOrb {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(40px,-30px) scale(1.15); }
}

.brif-shell > * { position: relative; z-index: 1; }

html[data-theme="dark"] .brif-shell {
  --brif-accent: #60a5fa;
  --brif-accent-2: #a855f7;
  --brif-accent-3: #f472b6;
  --brif-accent-soft: rgba(96, 165, 250, .1);
  --brif-accent-ring: rgba(96, 165, 250, .24);
  --brif-surface: rgba(30,41,59,.88);
  --brif-surface-glass: rgba(30,41,59,.6);
  --brif-border: rgba(148, 163, 184, .14);
  --brif-border-input: rgba(148, 163, 184, .2);
  --brif-text: #f1f5f9;
  --brif-text-2: #cbd5e1;
  --brif-text-3: #94a3b8;
  border-color: rgba(168,85,247,.25);
  box-shadow:
    0 1px 2px rgba(0,0,0,.2),
    0 24px 60px -12px rgba(96,165,250,.2),
    0 10px 40px -8px rgba(168,85,247,.2);
}

/* --- Hero (description block inside shell) --- */
.brif-hero {
  padding: 28px 28px 22px;
  position: relative;
}
.brif-hero::after {
  content: "";
  position: absolute; left: 28px; right: 28px; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124,58,237,.3) 20%, rgba(236,72,153,.3) 80%, transparent);
}
.brif-hero-desc {
  margin: 0;
  color: var(--brif-text-2);
  font-size: 1.02rem;
  line-height: 1.7;
  max-width: 720px;
}

/* --- Steps indicator --- */
.brif-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 24px 28px;
  margin: 0;
  flex-wrap: wrap;
}
.brif-step {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  position: relative; z-index: 1;
}
.brif-step-num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brif-accent), var(--brif-accent-2));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 15px;
  box-shadow: 0 6px 16px rgba(37,99,235,.28), inset 0 1px 0 rgba(255,255,255,.3);
  position: relative;
}
.brif-step-num::after {
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--brif-accent-ring);
  opacity: .5;
}
.brif-step-label {
  font-size: 11.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--brif-text-2);
}
.brif-step-line {
  flex: 0 1 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--brif-accent-ring), var(--brif-accent-soft));
  margin: 0 10px;
  position: relative; top: -13px;
}

/* --- Form --- */
.brif-form {
  padding: 0 28px 28px;
  display: flex; flex-direction: column; gap: 20px;
}

/* --- Section card --- */
.brif-section {
  background: var(--brif-surface-glass);
  border: 1px solid var(--brif-border);
  border-radius: var(--brif-radius-sm);
  padding: 22px 24px;
  box-shadow: 0 2px 8px rgba(15,23,42,.03), inset 0 1px 0 rgba(255,255,255,.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}
.brif-section:hover {
  border-color: rgba(124,58,237,.2);
  box-shadow: 0 6px 20px rgba(124,58,237,.1), inset 0 1px 0 rgba(255,255,255,.5);
  transform: translateY(-1px);
}
html[data-theme="dark"] .brif-section:hover {
  box-shadow: 0 6px 20px rgba(168,85,247,.15), inset 0 1px 0 rgba(255,255,255,.05);
}

.brif-section-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 18px;
}
.brif-section-icon {
  width: 40px; height: 40px; flex: 0 0 40px;
  padding: 9px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brif-accent), var(--brif-accent-2));
  color: #fff;
  box-shadow: 0 6px 14px rgba(37,99,235,.3), inset 0 1px 0 rgba(255,255,255,.3);
}
.brif-section h2 {
  margin: 0;
  font-size: 18px; font-weight: 800; letter-spacing: -.01em;
  color: var(--brif-text);
}

/* --- Fields --- */
.brif-fields-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.brif-fields-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
@media (max-width: 720px) {
  .brif-fields-2col, .brif-fields-3col { grid-template-columns: 1fr; }
}

.brif-field, .brif-input-group {
  display: flex; flex-direction: column; gap: 6px;
}
.brif-field-label {
  font-size: 12.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em;
  color: var(--brif-text-2);
}

.brif-field textarea,
.brif-input-wrap input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--brif-radius-xs);
  border: 1.5px solid var(--brif-border-input);
  background: var(--brif-surface);
  color: var(--brif-text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color .18s, box-shadow .22s, background .22s;
  outline: none;
  resize: vertical;
  box-sizing: border-box;
}
.brif-input-wrap { position: relative; }
.brif-input-wrap input { padding-left: 42px; }
.brif-input-icon {
  position: absolute; left: 12px; top: 50%;
  width: 18px; height: 18px;
  transform: translateY(-50%);
  color: var(--brif-text-3);
  pointer-events: none;
  transition: color .18s;
}

.brif-field textarea:focus,
.brif-input-wrap input:focus {
  border-color: var(--brif-accent-2);
  box-shadow: 0 0 0 4px rgba(124,58,237,.14);
  background: #fff;
}
html[data-theme="dark"] .brif-field textarea:focus,
html[data-theme="dark"] .brif-input-wrap input:focus {
  background: rgba(15,23,42,.95);
  box-shadow: 0 0 0 4px rgba(168,85,247,.22);
}
.brif-input-wrap input:focus ~ .brif-input-icon { color: var(--brif-accent-2); }

.brif-has-error .brif-input-wrap input,
.brif-has-error textarea {
  border-color: #ef4444;
  box-shadow: 0 0 0 4px rgba(239,68,68,.14);
}
.brif-input-err {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: 50%;
  background: #ef4444; color: #fff;
  font-weight: 800; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  animation: brifShake .4s ease;
}
@keyframes brifShake {
  0%,100% { transform: translateY(-50%) translateX(0); }
  25%     { transform: translateY(-50%) translateX(-3px); }
  75%     { transform: translateY(-50%) translateX(3px); }
}

/* --- Upload zone --- */
.brif-upload-zone {
  border: 2px dashed rgba(124,58,237,.3);
  border-radius: var(--brif-radius-sm);
  padding: 22px;
  background: linear-gradient(135deg, rgba(124,58,237,.03), rgba(236,72,153,.02));
  transition: border-color .18s, background .22s, transform .18s;
  cursor: pointer;
}
.brif-upload-zone:hover {
  border-color: var(--brif-accent-2);
  background: linear-gradient(135deg, rgba(124,58,237,.06), rgba(236,72,153,.04));
}
.brif-upload-idle {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  text-align: center;
}
.brif-upload-idle svg { transition: transform .2s; }
.brif-upload-zone:hover .brif-upload-idle svg { transform: translateY(-2px); }

.brif-file-chip {
  transition: transform .12s, box-shadow .18s;
}
.brif-file-chip:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(34,197,94,.18);
}
.brif-file-del:hover {
  background: rgba(239,68,68,.15) !important;
  color: #dc2626 !important;
}

/* --- Footer (submit) --- */
.brif-footer {
  margin-top: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--brif-border);
  display: flex; flex-direction: column; gap: 16px;
}

.brif-consents { display: flex; flex-direction: column; gap: 10px; }
.brif-consent {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 12.5px; line-height: 1.6;
  color: var(--brif-text-2);
  cursor: pointer;
  position: relative;
}
.brif-consent input[type="checkbox"] {
  position: absolute; opacity: 0; pointer-events: none;
}
.brif-consent-check {
  flex: 0 0 20px;
  width: 20px; height: 20px;
  border: 2px solid var(--brif-border-input);
  border-radius: 6px;
  background: var(--brif-surface);
  transition: background .18s, border-color .18s;
  position: relative;
  margin-top: 1px;
}
.brif-consent input:checked + .brif-consent-check {
  background: linear-gradient(135deg, var(--brif-accent), var(--brif-accent-2));
  border-color: transparent;
}
.brif-consent input:checked + .brif-consent-check::after {
  content: "";
  position: absolute; left: 5px; top: 2px;
  width: 6px; height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.brif-consent a { color: var(--brif-accent); font-weight: 600; }
.brif-has-error .brif-consent-check { border-color: #ef4444; }
.brif-input-err--inline {
  position: static;
  transform: none;
  margin-left: 8px;
  animation: brifShake .4s ease;
}

.brif-error-alert {
  padding: 12px 16px;
  border-radius: var(--brif-radius-xs);
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.25);
  color: #dc2626;
  font-size: 13px; font-weight: 600;
}

.brif-submit {
  align-self: stretch;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 28px;
  font-size: 15px; font-weight: 800; letter-spacing: -.01em;
  color: #fff;
  background: linear-gradient(135deg, var(--brif-accent), var(--brif-accent-2) 50%, var(--brif-accent-3));
  background-size: 200% 200%;
  border: none;
  border-radius: var(--brif-radius-xs);
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(37,99,235,.3), 0 4px 12px rgba(124,58,237,.25), inset 0 1px 0 rgba(255,255,255,.3);
  transition: transform .18s ease, box-shadow .22s ease, background-position .6s ease;
  position: relative; overflow: hidden;
}
.brif-submit:hover {
  transform: translateY(-2px);
  background-position: 100% 100%;
  box-shadow: 0 16px 36px rgba(124,58,237,.4), 0 8px 16px rgba(236,72,153,.28), inset 0 1px 0 rgba(255,255,255,.4);
}
.brif-submit:active { transform: translateY(0) scale(.98); }
.brif-submit::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,.35), transparent 50%);
  opacity: 0;
  transition: opacity .3s;
}
.brif-submit:hover::before { opacity: 1; }
.brif-submit svg { width: 18px; height: 18px; }

/* --- Loader --- */
.brif-loader {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: 60px 28px;
  text-align: center;
}
.brif-loader[hidden] { display: none; }
.brif-loader-pulse {
  width: 50px; height: 50px;
  border-radius: 50%;
  border: 4px solid rgba(124,58,237,.15);
  border-top-color: var(--brif-accent-2);
  border-right-color: var(--brif-accent-3);
  animation: brifSpin .9s linear infinite;
}
@keyframes brifSpin { to { transform: rotate(360deg); } }
.brif-loader p {
  margin: 0;
  font-size: 14px; font-weight: 600;
  color: var(--brif-text-2);
}

#contentOut.is-submitting { opacity: .5; pointer-events: none; }

/* --- Mobile tweaks --- */
@media (max-width: 640px) {
  .brif-hero, .brif-form { padding-left: 18px; padding-right: 18px; }
  .brif-steps { padding: 18px; }
  .brif-step-line { flex: 0 1 28px; margin: 0 6px; }
  .brif-section { padding: 18px; }
  .brif-section h2 { font-size: 16px; }
  .brif-submit { padding: 14px 20px; font-size: 14px; }
}