.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 160ms var(--ease), box-shadow 200ms var(--ease),
    background 200ms var(--ease), color 200ms var(--ease),
    border-color 200ms var(--ease), opacity 200ms var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn--ghost:hover {
  background: var(--bg-mist);
  color: var(--ink);
  border-color: var(--bg-mist);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn[disabled],
.btn--primary[disabled] {
  cursor: not-allowed;
  opacity: 0.55;
  background: linear-gradient(135deg, #4a6f82 0%, #2c4858 100%);
  box-shadow: none;
  transform: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  background: var(--accent);
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
}

.badge--lg {
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
}

.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease),
    border-color 240ms var(--ease);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 168, 232, 0.35);
  color: var(--ink);
}

.product-card__media {
  position: relative;
  background: radial-gradient(
      120% 80% at 30% 20%,
      rgba(127, 231, 212, 0.55),
      transparent 60%
    ),
    radial-gradient(
      120% 100% at 80% 90%,
      rgba(0, 168, 232, 0.35),
      transparent 60%
    ),
    linear-gradient(180deg, var(--bg-mist) 0%, #cfeaf6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  min-height: 280px;
}

.product-card__media .badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
}

.product-card__media img {
  width: min(100%, 240px);
  filter: drop-shadow(0 18px 30px rgba(3, 77, 118, 0.25));
  transition: transform 360ms var(--ease);
}

.product-card:hover .product-card__media img {
  transform: translateY(-4px) rotate(-1.5deg);
}

.product-card__body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-card__title {
  margin: 0 0 0.4rem;
  font-size: 1.4rem;
  font-weight: 700;
}

.product-card__desc {
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.product-card__cta {
  font-weight: 600;
  color: var(--brand-deep);
}

.product-card:hover .product-card__cta {
  color: var(--brand);
}

@media (max-width: 720px) {
  .product-card {
    grid-template-columns: 1fr;
  }

  .product-card__body {
    padding: 1.5rem;
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}

.form-field label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.form-field input,
.form-field select,
.form-field textarea {
  font: inherit;
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--ink);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease),
    background 160ms var(--ease);
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: rgba(0, 168, 232, 0.45);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(0, 168, 232, 0.18);
}

.form-field textarea {
  resize: vertical;
  min-height: 130px;
}

.form-field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.12);
}

.form-error {
  margin: 0;
  font-size: 0.85rem;
  color: var(--danger);
  min-height: 1em;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 540px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-success {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  background: rgba(127, 231, 212, 0.25);
  border: 1px solid var(--accent);
  color: var(--ink);
  border-radius: var(--radius-md);
  font-weight: 500;
}