:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eff6ff;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

.brief-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.brief-header {
  text-align: center;
  margin-bottom: 36px;
}

.brief-logo {
  max-width: 220px;
  height: auto;
  margin-bottom: 20px;
}

.brief-logo-link {
  display: inline-block;
  line-height: 0;
}

.brief-logo-link:hover .brief-logo {
  opacity: 0.85;
}

.brief-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.brief-header h1 {
  margin: 0 0 10px;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brief-header p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  max-width: 560px;
  margin-inline: auto;
}

.brief-notice {
  margin-top: 14px !important;
  padding: 12px 16px;
  background: var(--accent-soft);
  border-radius: 8px;
  color: #1e40af !important;
  font-size: 0.875rem !important;
  max-width: 620px !important;
}

.brief-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.field-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.field-label {
  display: block;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 6px;
}

.field-label .req {
  color: var(--danger);
}

.field-hint {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.875rem;
}

.field-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.example-chip {
  border: 1px solid var(--border);
  background: #f9fafb;
  color: var(--muted);
  font-size: 0.8125rem;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.example-chip:hover,
.example-chip.selected {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.field-file-upload {
  margin-top: 12px;
}

.field-file-upload .field-hint {
  margin-bottom: 8px;
}

.upload-zone--compact {
  padding: 14px 16px;
}

.upload-zone--compact p {
  margin: 0 0 4px;
  font-size: 0.875rem;
}

.upload-zone--compact small {
  font-size: 0.75rem;
}

.text-input,
.text-area {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.text-input:focus,
.text-area:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.text-input.invalid,
.text-area.invalid {
  border-color: var(--danger);
}

.text-area {
  min-height: 110px;
  resize: vertical;
}

.field-error {
  display: none;
  margin-top: 8px;
  font-size: 0.8125rem;
  color: var(--danger);
}

.field-error.visible {
  display: block;
}

.card-grid {
  display: grid;
  gap: 12px;
}

.card-grid--goal {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.card-grid--mood {
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}

.card-grid--font {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  align-items: stretch;
}

.card-grid--audience {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.choice-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  text-align: left;
  padding: 0;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
}

.choice-card:hover {
  border-color: #93c5fd;
  box-shadow: var(--shadow);
}

.choice-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.choice-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 16px 16px 0;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
}

.choice-card__icon img,
.choice-card__icon svg {
  width: 24px;
  height: 24px;
}

.choice-card__body {
  padding: 12px 16px 16px;
}

.choice-card__title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.choice-card__desc {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.4;
}

.choice-card--mood .choice-card__preview {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
  background: #f3f4f6;
}

.choice-card--mood .choice-card__body {
  padding: 10px 12px 12px;
}

.choice-card--font {
  height: 100%;
}

.choice-card--font .font-sample {
  flex: 0 0 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.625rem;
  padding: 0 10px;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
}

.choice-card--font .font-sample__inner {
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
}

.choice-card--font .font-sample--neutral {
  color: var(--muted);
}

.choice-card--font .font-sample--custom {
  font-family: "Outfit", sans-serif;
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--text);
}

.choice-card--font .font-sample--display {
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

.choice-card--font .font-sample--retro {
  font-size: 1.45rem;
}

.choice-card--font .choice-card__body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  padding: 0;
  text-align: center;
  width: 100%;
  min-height: 0;
}

.choice-card--font .choice-card__title {
  flex: 0 0 2.6em;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  margin: 0;
  text-align: center;
  line-height: 1.25;
  box-sizing: border-box;
}

.choice-card--font .choice-card__desc {
  flex: 0 0 3.25em;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 0 10px 10px;
  margin: 0;
  text-align: center;
  line-height: 1.4;
  box-sizing: border-box;
}

.font-preview-block {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.font-preview-display {
  margin: 14px 0 0;
  padding: 20px 16px;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  word-break: break-word;
  font-family: 'Inter', sans-serif;
  font-size: 1.75rem;
  line-height: 1.3;
  background: #f9fafb;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--text);
  transition: font-family 0.15s;
}

.font-preview-display.is-empty-hint {
  font-size: 0.9375rem;
  color: var(--muted);
  font-family: 'Inter', sans-serif !important;
  font-weight: 400 !important;
}

.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.color-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s;
  flex-shrink: 0;
}

.color-btn:hover {
  transform: scale(1.08);
}

.color-btn.selected {
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--accent);
}

.color-btn--custom {
  background: conic-gradient(red, yellow, lime, aqua, blue, magenta, red);
  position: relative;
}

.color-btn--custom::after {
  content: "+";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.color-custom-wrap {
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.color-custom-wrap.visible {
  display: flex;
}

.color-custom-wrap input[type="color"] {
  width: 44px;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 28px 20px;
  text-align: center;
  background: #fafbfc;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.upload-zone__icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  color: var(--accent);
}

.upload-zone p {
  margin: 0 0 4px;
  font-weight: 500;
}

.upload-zone small {
  color: var(--muted);
  font-size: 0.8125rem;
}

.upload-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.upload-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  background: #f9fafb;
  border-radius: 8px;
  font-size: 0.875rem;
}

.upload-list button {
  border: none;
  background: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.8125rem;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.checkbox-row:last-child {
  border-bottom: none;
}

.checkbox-row input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.checkbox-row label {
  font-size: 0.9375rem;
  color: var(--text);
  cursor: pointer;
}

.other-input-wrap {
  display: none;
  margin-top: 12px;
}

.other-input-wrap.visible {
  display: block;
}

.form-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding-top: 8px;
}

.form-actions .brief-notice {
  margin-top: 0 !important;
  text-align: center;
}

.btn-submit {
  appearance: none;
  border: none;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 40px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  box-shadow: var(--shadow-lg);
}

.btn-submit:hover {
  background: var(--accent-hover);
}

.btn-submit:active {
  transform: scale(0.98);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #111827;
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.9375rem;
  opacity: 0;
  transition: transform 0.25s, opacity 0.25s;
  z-index: 100;
  max-width: 90vw;
}

.toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media (max-width: 600px) {
  .brief-page {
    padding: 20px 14px 48px;
  }

  .field-block {
    padding: 18px;
  }

  .card-grid--goal,
  .card-grid--mood,
  .card-grid--font,
  .card-grid--audience {
    grid-template-columns: 1fr 1fr;
  }

  .choice-card--font .font-sample {
    flex-basis: 52px;
    height: 52px;
    font-size: 1.375rem;
  }
}

@media (max-width: 400px) {
  .card-grid--mood,
  .card-grid--style,
  .card-grid--font {
    grid-template-columns: 1fr;
  }
}

/* --- v2: стиль дизайна, брендбук --- */

.field-block.is-hidden {
  display: none !important;
}

.card-grid--mode {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.card-grid--style {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.brandbook-panel {
  display: none;
  margin-top: 16px;
  padding: 16px;
  background: var(--accent-soft);
  border-radius: 10px;
  border: 1px solid #bfdbfe;
}

.brandbook-panel.visible {
  display: block;
}

.choice-card--style .choice-card__preview-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 120px;
  padding: 8px;
  background: #f3f4f6;
  box-sizing: border-box;
}

.choice-card--style .choice-card__preview-wrap--placeholder {
  color: #9ca3af;
  font-size: 2rem;
}

.choice-card--style .choice-card__preview {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.choice-card--style .choice-card__body {
  padding: 10px 12px 14px;
  flex: 1;
}

.choice-card--style .choice-card__desc {
  font-size: 0.8125rem;
  line-height: 1.25;
  margin: 0;
}

@media (max-width: 640px) {
  .card-grid--style,
  .card-grid--mode {
    grid-template-columns: 1fr 1fr;
  }
}