/* Romalux Electric — componentes base (CSS puro, sin dependencias).
   Requiere tokens.css y la fuente Barlow 400/500/600/700 (Google Fonts). */

.rx, .rx * { box-sizing: border-box; }
.rx { font-family: var(--font-sans); color: var(--text-primary); font-size: 17px; line-height: 27px; -webkit-font-smoothing: antialiased; }

/* ---------- Botones ---------- */
.rx-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: var(--space-3) var(--space-5);
  font-family: var(--font-sans); font-size: 16px; line-height: 20px; font-weight: 600;
  border-radius: var(--radius-md); border: 2px solid transparent;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.rx-btn svg { width: 20px; height: 20px; flex: none; stroke-width: 2; }
.rx-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.rx-btn--primary { background: var(--primary); color: var(--text-inverse); }
.rx-btn--primary:hover, .rx-btn--primary.is-hover { background: var(--primary-hover); }

.rx-btn--secondary { background: var(--background); color: var(--text-primary); border-color: var(--primary); }
.rx-btn--secondary:hover, .rx-btn--secondary.is-hover { background: var(--surface); }

.rx-btn--whatsapp { background: var(--whatsapp); color: var(--text-inverse); }
.rx-btn--whatsapp:hover, .rx-btn--whatsapp.is-hover { background: var(--whatsapp-hover); }

.rx-btn--link { background: none; border: 0; padding: var(--space-1) 0; min-height: 0; color: var(--text-primary); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.rx-btn--link:hover { text-decoration-thickness: 2px; }

.rx-btn.is-focus { outline: 2px solid var(--focus); outline-offset: 2px; }
.rx-btn:disabled, .rx-btn.is-disabled {
  background: var(--surface-strong); color: var(--border-strong); border-color: var(--surface-strong); cursor: not-allowed;
}
.rx-btn--sm { min-height: 40px; padding: var(--space-2) var(--space-4); font-size: 15px; }
.rx-btn--block { display: flex; width: 100%; }

/* sobre fondos oscuros */
.rx-on-dark .rx-btn:focus-visible, .rx-on-dark .rx-btn.is-focus { outline-color: var(--focus-inverse); }
.rx-on-dark .rx-btn--secondary { background: transparent; color: var(--text-inverse); border-color: var(--text-inverse); }
.rx-on-dark .rx-btn--secondary:hover { background: var(--border-inverse); }

/* ---------- Formularios ---------- */
.rx-field { display: flex; flex-direction: column; gap: var(--space-2); }
.rx-label { font-size: 15px; line-height: 20px; font-weight: 600; color: var(--text-primary); }
.rx-label .rx-req { color: var(--text-secondary); font-weight: 400; }
.rx-help { font-size: 14px; line-height: 21px; color: var(--text-secondary); }
.rx-help--error { color: var(--error); display: flex; gap: var(--space-1); align-items: center; }
.rx-help--error svg { width: 16px; height: 16px; }

.rx-input, .rx-select, .rx-textarea {
  width: 100%; min-height: 48px; padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans); font-size: 16px; line-height: 22px; color: var(--text-primary);
  background: var(--background); border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.rx-input::placeholder, .rx-textarea::placeholder { color: var(--text-tertiary); }
.rx-input:hover, .rx-select:hover, .rx-textarea:hover, .rx-input.is-hover { border-color: var(--primary); }
.rx-input:focus, .rx-select:focus, .rx-textarea:focus, .rx-input.is-focus, .rx-textarea.is-focus, .rx-select.is-focus {
  outline: none; border-color: var(--focus); box-shadow: 0 0 0 1px var(--focus);
}
.rx-input.is-error, .rx-textarea.is-error { border-color: var(--error); box-shadow: 0 0 0 1px var(--error); }
.rx-input:disabled, .rx-select:disabled, .rx-textarea:disabled, .rx-input.is-disabled {
  background: var(--surface-strong); border-color: var(--surface-strong); color: var(--text-tertiary); cursor: not-allowed;
}
.rx-textarea { min-height: 128px; resize: vertical; }
.rx-select {
  appearance: none; -webkit-appearance: none; padding-right: 44px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23111111' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}

.rx-check { display: inline-flex; align-items: flex-start; gap: var(--space-3); font-size: 16px; line-height: 24px; color: var(--text-primary); cursor: pointer; }
.rx-check input {
  appearance: none; -webkit-appearance: none; flex: none; margin: 2px 0 0;
  width: 20px; height: 20px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--background); display: grid; place-content: center; cursor: pointer;
}
.rx-check input::after { content: ""; width: 11px; height: 6px; border: solid var(--text-inverse); border-width: 0 0 2px 2px; transform: rotate(-45deg) translate(1px, -1px); opacity: 0; }
.rx-check input:checked { background: var(--primary); border-color: var(--primary); }
.rx-check input:checked::after { opacity: 1; }
.rx-check input:hover { border-color: var(--primary); }
.rx-check input:focus-visible, .rx-check input.is-focus { outline: 2px solid var(--focus); outline-offset: 2px; }
.rx-check input:disabled { background: var(--surface-strong); border-color: var(--surface-strong); cursor: not-allowed; }
.rx-check.is-disabled { color: var(--text-tertiary); cursor: not-allowed; }
.rx-check a { color: var(--text-primary); text-underline-offset: 3px; }

/* ---------- Cards ---------- */
.rx-card {
  background: var(--background); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3);
}
.rx-card--surface { background: var(--surface); border-color: var(--surface); }
.rx-card__title { margin: 0; font-size: 19px; line-height: 26px; font-weight: 600; }
.rx-card__text { margin: 0; font-size: 17px; line-height: 27px; color: var(--text-secondary); }

.rx-service {
  background: var(--background); border: 1px solid var(--border); border-radius: var(--radius-md);
  overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.rx-service:hover, .rx-service.is-hover { border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.rx-service:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.rx-service__media { aspect-ratio: 4 / 3; background: var(--surface-strong); }
.rx-service__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.rx-service__body { padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
.rx-service__icon { width: 40px; height: 40px; display: grid; place-items: center; background: var(--surface); border-radius: var(--radius-sm); color: var(--text-primary); }
.rx-service__icon svg { width: 22px; height: 22px; stroke-width: 1.75; }
.rx-service__title { margin: 0; font-size: 19px; line-height: 26px; font-weight: 600; }
.rx-service__text { margin: 0; font-size: 16px; line-height: 25px; color: var(--text-secondary); }
.rx-service__more { margin-top: auto; padding-top: var(--space-2); display: inline-flex; align-items: center; gap: var(--space-2); font-size: 16px; font-weight: 600; color: var(--text-primary); }
.rx-service__more svg { width: 18px; height: 18px; transition: transform .15s ease; }
.rx-service:hover .rx-service__more svg { transform: translateX(2px); }

/* ---------- Badge ---------- */
.rx-badge {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 var(--space-2);
  font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius-sm); background: var(--surface); color: var(--text-primary); white-space: nowrap;
}
.rx-badge svg { width: 14px; height: 14px; stroke-width: 2; }
.rx-badge--dark { background: var(--primary); color: var(--text-inverse); }
.rx-badge--accent { background: var(--accent); color: var(--text-primary); }
.rx-badge--outline { background: transparent; border: 1px solid var(--border-strong); }
.rx-badge--success { background: var(--success-soft); color: var(--success); }
.rx-badge--warning { background: var(--warning-soft); color: var(--warning); }
.rx-badge--error { background: var(--error-soft); color: var(--error); }

/* ---------- Iconos ---------- */
.rx-icon { width: 24px; height: 24px; stroke-width: 1.75; color: var(--text-primary); flex: none; }
.rx-icon--sm { width: 18px; height: 18px; stroke-width: 2; }
.rx-icon--lg { width: 32px; height: 32px; stroke-width: 1.5; }
.rx-icon-box { width: 48px; height: 48px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--surface); }
.rx-icon-box--dark { background: var(--primary); }
.rx-icon-box--dark svg { color: var(--accent); }

/* ---------- Separadores ---------- */
.rx-divider { border: 0; height: 1px; background: var(--border); margin: 0; width: 100%; }
.rx-divider--strong { background: var(--primary); }
.rx-divider--inverse { background: var(--border-inverse); }
.rx-eyebrow { display: inline-flex; flex-direction: column; gap: var(--space-2); font-size: 13px; line-height: 16px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--text-secondary); }
.rx-eyebrow::after { content: ""; width: 40px; height: 3px; background: var(--accent); }

/* ---------- Avisos ---------- */
.rx-alert { display: flex; gap: var(--space-3); padding: var(--space-4); border-radius: var(--radius-sm); font-size: 16px; line-height: 24px; }
.rx-alert svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.rx-alert--success { background: var(--success-soft); color: var(--success); }
.rx-alert--warning { background: var(--warning-soft); color: var(--warning); }
.rx-alert--error { background: var(--error-soft); color: var(--error); }
.rx-alert strong { font-weight: 600; }