/* Riffs and Beats — soutien financier (aligné thème ReadAndDigest) */

.rb-support {
  --rb-gold: #c99e66;
  --rb-gold-deep: #a67c45;
  --rb-ink: #222;
  --rb-muted: #555;
  --rb-line: #e5e0d8;
  --rb-soft: #f7f4ef;
  --rb-ok: #2f6b4f;
  --rb-ok-bg: #e8f3ec;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
  color: var(--rb-ink);
  font-family: Raleway, Helvetica, Arial, sans-serif;
}

.rb-support__intro {
  margin-bottom: 1.75rem;
  text-align: left;
}

.rb-support__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rb-gold);
  font-weight: 600;
}

.rb-support__title {
  margin: 0 0 0.75rem;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--rb-ink);
}

.rb-support__lead {
  margin: 0;
  color: var(--rb-muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.rb-support__banner {
  margin-bottom: 1.5rem;
  padding: 1rem 1.15rem;
  background: var(--rb-soft);
}

.rb-support__banner--success {
  background: var(--rb-ok-bg);
  color: var(--rb-ok);
}

.rb-support__banner-title {
  margin: 0;
  font-weight: 600;
}

.rb-support__banner-detail {
  margin: 0.35rem 0 0;
  color: var(--rb-muted);
  font-size: 0.95rem;
}

.rb-support__alert {
  padding: 1rem;
  background: var(--rb-soft);
  border: 1px solid var(--rb-line);
  color: var(--rb-muted);
}

.rb-support__form {
  display: grid;
  gap: 1.35rem;
}

.rb-support__amounts {
  margin: 0;
  padding: 0;
  border: 0;
}

.rb-support__amounts legend {
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rb-muted);
  font-weight: 600;
}

.rb-support__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.rb-support__chip {
  appearance: none;
  border: 1px solid var(--rb-line);
  background: #fff;
  color: var(--rb-ink);
  padding: 0.85rem 0.5rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.rb-support__chip:hover {
  border-color: var(--rb-gold);
  transform: translateY(-1px);
}

.rb-support__chip.is-active {
  border-color: var(--rb-gold);
  background: var(--rb-gold);
  color: #fff;
}

.rb-support__chip:focus-visible {
  outline: 2px solid var(--rb-gold-deep);
  outline-offset: 2px;
}

.rb-support__chip--custom {
  grid-column: 1 / -1;
}

.rb-support__custom label,
.rb-support__field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--rb-muted);
}

.rb-support__custom-row {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--rb-line);
  background: #fff;
}

.rb-support__custom-row:focus-within {
  border-color: var(--rb-gold);
}

.rb-support__custom input,
.rb-support__field input {
  width: 100%;
  border: 1px solid var(--rb-line);
  padding: 0.85rem 0.95rem;
  font: inherit;
  background: #fff;
  color: var(--rb-ink);
}

.rb-support__custom input {
  border: 0;
  flex: 1;
}

.rb-support__custom input:focus,
.rb-support__field input:focus {
  outline: none;
  border-color: var(--rb-gold);
}

.rb-support__currency {
  display: grid;
  place-items: center;
  padding: 0 0.9rem;
  background: var(--rb-soft);
  color: var(--rb-muted);
  font-weight: 600;
  border-left: 1px solid var(--rb-line);
}

.rb-support__hint {
  margin: 0.4rem 0 0;
  font-size: 0.8rem;
  color: #888;
}

.rb-support__error {
  margin: 0;
  color: #8a2f2f;
  font-size: 0.95rem;
}

.rb-support__submit {
  appearance: none;
  border: 0;
  background: var(--rb-ink);
  color: #fff;
  padding: 1rem 1.25rem;
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.rb-support__submit:hover:not(:disabled) {
  background: var(--rb-gold-deep);
  transform: translateY(-1px);
}

.rb-support__submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.rb-support__submit:focus-visible {
  outline: 2px solid var(--rb-gold);
  outline-offset: 3px;
}

.rb-support__secure {
  margin: 0;
  font-size: 0.85rem;
  color: #888;
  line-height: 1.5;
}

.rb-support .is-hidden {
  display: none !important;
}

@media (max-width: 480px) {
  .rb-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .rb-support__chip,
  .rb-support__submit {
    transition: none;
  }

  .rb-support__chip:hover,
  .rb-support__submit:hover:not(:disabled) {
    transform: none;
  }
}