/* === COMPONENTS: BOTONS === */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.2;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
  box-shadow: var(--shadow-xs);
  box-sizing: border-box;
  min-height: 48px;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--outline {
  background-color: rgba(255, 255, 255, 0.88);
  color: var(--color-principal);
  border-color: var(--color-border);
  box-shadow: var(--shadow-xs);
}

.btn--outline:hover {
  background-color: var(--color-blau-clar);
  border-color: var(--color-principal);
  color: var(--color-principal);
  box-shadow: var(--shadow-xs);
}

.btn--secondary {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-principal);
  color: var(--color-principal);
}

.btn--soft {
  background: var(--color-daurat-soft);
  color: var(--color-daurat-fosc);
  border-color: rgba(166, 124, 0, 0.24);
  box-shadow: none;
}

.btn--soft:hover {
  background: var(--gradient-daurat);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(166, 124, 0, 0.18);
}

.btn--filter,
.btn--primary,
.btn-external {
  background: var(--gradient-blau);
  color: #fff;
  border-color: rgba(11, 21, 38, 0.08);
}

.btn--filter {
  box-shadow: 0 18px 34px rgba(19, 44, 99, 0.22);
}

.btn--primary {
  box-shadow: 0 18px 34px rgba(19, 44, 99, 0.2);
}

.btn-external {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: auto;
  max-width: 100%;
  padding: 0 18px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(27, 46, 94, 0.98), rgba(38, 73, 156, 0.92));
  border-color: rgba(27, 46, 94, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.10),
    0 12px 24px rgba(19, 44, 99, 0.16);
  font-size: 0.96rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.btn--filter:hover,
.btn--primary:hover,
.btn-external:hover {
  filter: brightness(1.04);
}

.btn-external::before {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-radius: 50%;
  opacity: 0.88;
  flex: 0 0 16px;
  box-sizing: border-box;
  background:
    linear-gradient(currentColor, currentColor) center / 2px 100% no-repeat,
    linear-gradient(currentColor, currentColor) center / 100% 2px no-repeat;
}

.btn-external::after {
  content: "↗";
  font-size: 0.9rem;
  line-height: 1;
  opacity: 0.82;
}

.btn--primary.disabled,
.btn--primary:disabled {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

.btn--disabled,
.btn:disabled {
  background-color: var(--color-surface-3);
  color: var(--color-subtext);
  cursor: not-allowed;
  pointer-events: none;
  border-color: transparent;
  opacity: 0.6;
  box-shadow: none;
}

.btn--text {
  background: none;
  color: var(--color-principal);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-s);
  cursor: pointer;
  box-shadow: none;
}

.btn--text:hover {
  color: var(--color-principal-fosc);
  background-color: var(--color-blau-clar);
}

.btn .icon-plus {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  vertical-align: middle;
}

.back-to-index,
.btn--back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  text-decoration: none;
  transition: var(--transition);
}

.back-to-index:hover,
.btn--back:hover {
  background-color: var(--color-surface-2);
  border-color: var(--color-principal);
  color: var(--color-principal);
}

.back-to-index--perfil {
  left: 235px;
  top: 150px;
}

.boto-accions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.btn-editar {
  background-color: var(--color-principal);
  color: #fff;
  border: 1px solid transparent;
  padding: 6px 12px;
  border-radius: var(--radius-s);
  cursor: pointer;
  transition: var(--transition);
}

.btn-editar:hover {
  background-color: var(--color-principal-fosc);
}

.btn-esborrar {
  background-color: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 6px 12px;
  border-radius: var(--radius-s);
  cursor: pointer;
  transition: var(--transition);
}

.btn-esborrar:hover {
  background-color: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
}

.btn--register {
  background: linear-gradient(135deg, rgba(255, 247, 223, 0.98), rgba(243, 229, 181, 0.95));
  color: var(--color-principal-fosc);
  border: 1px solid rgba(217, 180, 74, 0.52);
  border-radius: var(--radius);
  padding: 0.8rem 1.25rem;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 16px 30px rgba(165, 122, 18, 0.14);
}

.btn--register:hover {
  background: var(--gradient-daurat);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(166, 124, 0, 0.18);
}

.btn--soft,
.btn-external {
  min-height: 44px;
  font-family: var(--font-secondary);
}

.btn-like {
  border: 1px solid transparent;
  cursor: pointer;
  border-radius: 10px;
  padding: 6px 10px;
  background: #eef6ff;
  color: #0a4a6b;
  font-weight: 700;
  transition: var(--transition);
}

.btn-like[aria-pressed="true"] {
  background: #dff2ff;
}

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

.btn--unfollow:hover {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
}

.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.15s ease;
}

.theme-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
  transform: scale(1.05);
}

[data-theme="dark"] .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .btn--register {
  background-color: var(--color-daurat);
  color: #0b1220;
  border-color: var(--color-daurat-fosc);
}

[data-theme="dark"] .btn--register:hover {
  background-color: var(--color-daurat-fosc);
  color: #0b1220;
}