/* =============================================
   SERVICIO CUAUTLA - PEMEX Landing Page
   Paleta: Verde PEMEX #006633 | Rojo #DA2128
   ============================================= */

/* ---------- VARIABLES & RESET ---------- */
:root {
  --pemex-green: #006633;
  --pemex-green-dark: #004d26;
  --pemex-green-light: #00873f;
  --pemex-red: #DA2128;
  --pemex-red-dark: #b51a1f;
  --text-dark: #1a1a2e;
  --text-mid: #4a4a6a;
  --text-light: #7a7a9a;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --border: #e8e8f0;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.16);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --container: 1180px;
  --nav-height: 80px;
  --topbar-height: 44px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-height) + var(--nav-height));
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--pemex-green);
  color: #fff;
  border-color: var(--pemex-green);
}
.btn--primary:hover {
  background: var(--pemex-green-dark);
  border-color: var(--pemex-green-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--pemex-green);
  border-color: var(--pemex-green);
}
.btn--outline:hover {
  background: var(--pemex-green);
  color: #fff;
  transform: translateY(-1px);
}

.btn--outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
  font-size: 14px;
  padding: 10px 20px;
}
.btn--outline-light:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
}

.btn--lg { padding: 16px 32px; font-size: 16px; }
.btn--full { width: 100%; justify-content: center; }

/* ---------- SECTION HEADERS ---------- */
.section-header { text-align: center; margin-bottom: 48px; }

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.2;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--pemex-green), var(--pemex-red));
  border-radius: 2px;
  margin: 12px auto 0;
}

.section-subtitle {
  color: var(--text-mid);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}

/* =============================================
   BILLING TOP BAR
   ============================================= */
.billing-topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(90deg, #006633 0%, #007a3d 50%, #006633 100%);
  border-bottom: 3px solid var(--pemex-red);
}

.billing-topbar__link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 24px;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  min-height: var(--topbar-height);
  transition: background var(--transition);
}

.billing-topbar__link:hover {
  background: rgba(255,255,255,0.08);
}

.billing-topbar__icon { font-size: 18px; }

.billing-topbar__text strong { font-weight: 700; color: #ffe066; }

.billing-topbar__arrow {
  font-size: 18px;
  font-weight: 700;
  color: #ffe066;
  transition: transform var(--transition);
}

.billing-topbar__link:hover .billing-topbar__arrow {
  transform: translateX(4px);
}

.billing-topbar--offline {
  background: linear-gradient(90deg, #7a4f00 0%, #9a6300 50%, #7a4f00 100%);
  border-bottom-color: #e6a817;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: sticky;
  top: var(--topbar-height);
  z-index: 999;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  height: var(--nav-height);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar__logo-wrap { width: 64px; height: 64px; display: flex; align-items: center; }

.navbar__logo { width: 64px; height: 64px; object-fit: contain; }

.navbar__logo-fallback {
  width: 64px;
  height: 64px;
  background: var(--pemex-green);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
}

.logo-pemex-text {
  color: #fff;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.navbar__brand-text { display: flex; flex-direction: column; }

.navbar__brand-name {
  font-weight: 700;
  font-size: 16px;
  color: var(--text-dark);
  line-height: 1.2;
}

.navbar__brand-sub {
  font-size: 11px;
  color: var(--text-light);
  font-weight: 400;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-mid);
  transition: all var(--transition);
}

.navbar__link:hover {
  color: var(--pemex-green);
  background: rgba(0,102,51,0.06);
}

.navbar__link--factura {
  background: var(--pemex-green);
  color: #fff !important;
  font-weight: 700;
  padding: 9px 18px;
  margin-left: 8px;
}

.navbar__link--factura:hover {
  background: var(--pemex-green-dark) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.navbar__link--factura-offline {
  background: #b45309 !important;
}

.navbar__link--factura-offline:hover {
  background: #92400e !important;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.navbar__toggle span {
  display: block;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

.navbar__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.is-open span:nth-child(2) { opacity: 0; }
.navbar__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: calc(100vh - var(--topbar-height) - var(--nav-height));
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--pemex-green-dark) 0%, var(--pemex-green) 40%, #005a2b 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(218,33,40,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 40%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.1));
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.02) 60px,
      rgba(255,255,255,0.02) 61px
    );
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 80px 24px;
  gap: 20px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: 50px;
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  font-weight: 500;
}

.hero__pemex-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.hero__title {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -1px;
}

.hero__subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  color: rgba(255,255,255,0.8);
  font-weight: 400;
  max-width: 480px;
}

.hero__info {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  background: rgba(255,255,255,0.08);
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.12);
}

/* HERO BILLING CTA - el elemento más importante */
.hero__factura-cta {
  margin: 12px 0;
  width: 100%;
  max-width: 520px;
}

.btn-factura-hero {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border-radius: var(--radius);
  padding: 20px 28px;
  width: 100%;
  transition: all var(--transition);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  border: 3px solid rgba(255,255,255,0.3);
}

.btn-factura-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.35);
  border-color: #ffe066;
}

.btn-factura-hero__icon {
  font-size: 36px;
  flex-shrink: 0;
}

.btn-factura-hero__content {
  flex: 1;
  text-align: left;
}

.btn-factura-hero__title {
  display: block;
  font-size: 18px;
  font-weight: 800;
  color: var(--pemex-green-dark);
  line-height: 1.2;
}

.btn-factura-hero__sub {
  display: block;
  font-size: 13px;
  color: var(--text-mid);
  margin-top: 2px;
}

.btn-factura-hero__arrow {
  color: var(--pemex-green);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.btn-factura-hero:hover .btn-factura-hero__arrow {
  transform: translateX(4px);
}

.btn-factura-hero--offline .btn-factura-hero__title { color: #92400e; }
.btn-factura-hero--offline .btn-factura-hero__arrow { color: #b45309; }
.btn-factura-hero--offline:hover { border-color: #fcd34d; }

.hero__scroll-cta {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  transition: color var(--transition);
  margin-top: 8px;
}

.hero__scroll-cta:hover { color: #fff; }

/* =============================================
   FACTURA SECTION
   ============================================= */
.factura-section {
  background: var(--bg-light);
  border-top: 4px solid var(--pemex-red);
  padding: 72px 0;
}

.factura-section__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.factura-section__title {
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}

.factura-section__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background: var(--pemex-red);
  border-radius: 2px;
  margin-top: 12px;
}

.factura-section__desc {
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.factura-section__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.factura-section__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-dark);
}

.factura-section__list li svg { color: var(--pemex-green); flex-shrink: 0; }

.factura-section__card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.factura-section__card-icon { font-size: 56px; }

.factura-section__card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
}

.factura-section__card p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.6;
}

.factura-section__card-note {
  font-size: 12px;
  color: var(--text-light);
  margin-top: -4px;
}

.billing-offline-card {
  border-color: #fcd34d;
  background: #fffbeb;
}

.billing-offline-card h3 { color: #92400e; }
.billing-offline-card .factura-section__card-note a { color: #b45309; }
.billing-offline-card .factura-section__card-note a:hover { text-decoration: underline; }

/* =============================================
   SERVICES
   ============================================= */
.services-section {
  padding: 80px 0;
  background: #fff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.service-card {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--pemex-green), var(--pemex-red));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.service-card__icon--magna { background: rgba(0,102,51,0.1); color: var(--pemex-green); }
.service-card__icon--premium { background: rgba(218,33,40,0.1); color: var(--pemex-red); }
.service-card__icon--diesel { background: rgba(26,26,46,0.08); color: var(--text-dark); }

.service-card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.service-card__desc {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-card__badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.service-card__badge--green { background: rgba(0,102,51,0.1); color: var(--pemex-green); }
.service-card__badge--red { background: rgba(218,33,40,0.1); color: var(--pemex-red); }
.service-card__badge--dark { background: rgba(26,26,46,0.08); color: var(--text-mid); }

.services-extra {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--pemex-green-dark);
  border-radius: var(--radius);
  padding: 28px;
}

.services-extra__item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  font-weight: 500;
}

.services-extra__item svg { color: #6ee47a; flex-shrink: 0; }

/* =============================================
   LOCATION
   ============================================= */
.location-section {
  padding: 80px 0 0;
  background: var(--bg-light);
}

.location-section__map-wrap {
  margin: 0 0 0;
  border-top: 4px solid var(--pemex-green);
  border-bottom: 4px solid var(--pemex-green);
  overflow: hidden;
}

.location-section__map-wrap iframe {
  display: block;
  width: 100%;
  height: 420px;
  filter: grayscale(15%);
}

.location-section__info {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 32px 0;
}

.location-info-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 200px;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.location-info-card svg { color: var(--pemex-green); flex-shrink: 0; margin-top: 2px; }

.location-info-card strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.location-info-card p,
.location-info-card span {
  font-size: 14px;
  color: var(--text-dark);
  line-height: 1.5;
}

.location-info-card a { color: var(--pemex-green); }
.location-info-card a:hover { text-decoration: underline; }

/* =============================================
   CONTACT
   ============================================= */
.contact-section {
  padding: 80px 0;
  background: #fff;
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
}

.contact-section__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
  max-width: 100%;
  overflow: hidden;
}

.contact-info h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 24px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.contact-info__icon {
  width: 40px;
  height: 40px;
  background: rgba(0,102,51,0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--pemex-green);
}

.contact-info__item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.contact-info__item a,
.contact-info__item span {
  font-size: 14px;
  color: var(--text-dark);
  line-height: 1.5;
}

.contact-info__item a { color: var(--pemex-green); }
.contact-info__item a:hover { text-decoration: underline; }

.contact-info__factura-reminder {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  background: rgba(0,102,51,0.06);
  border: 1px solid rgba(0,102,51,0.15);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-mid);
}

.contact-info__factura-reminder svg { color: var(--pemex-green); flex-shrink: 0; }
.contact-info__factura-reminder a { color: var(--pemex-green); font-weight: 600; }
.contact-info__factura-reminder a:hover { text-decoration: underline; }

/* FORM */
/* Pestañas de formularios */
.contact-form-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.form-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.form-tabs::-webkit-scrollbar {
  height: 2px;
}

.form-tabs::-webkit-scrollbar-track {
  background: transparent;
}

.form-tabs::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.form-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-mid);
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -2px;
  white-space: nowrap;
  min-width: fit-content;
}

.form-tab:hover {
  color: var(--pemex-green);
  background: rgba(0,102,51,0.04);
}

.form-tab.active {
  color: var(--pemex-green);
  border-bottom-color: var(--pemex-green);
}

.form-tab svg {
  opacity: 0.7;
}

.form-tab.active svg {
  opacity: 1;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.contact-form {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* Secciones del formulario */
.form-section {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 16px;
  padding-bottom: 0;
}

.form-section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-section-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: var(--pemex-green);
  border-radius: 2px;
}

/* Filas de formulario */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 0;
}

.form-row .form-group {
  margin-bottom: 12px;
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-row .form-group {
    margin-bottom: 12px;
  }

  .contact-form-wrapper {
    width: 100%;
    max-width: 100%;
    padding: 0;
  }

  .form-tabs {
    gap: 4px;
    margin-bottom: 18px;
    width: 100%;
    max-width: 100%;
  }

  .form-tab {
    font-size: 14px;
    padding: 12px 16px;
    flex: 1;
    min-width: 100px;
  }

  .contact-form {
    padding: 20px 16px;
    width: 100%;
    max-width: 100%;
  }

  .form-section-title {
    font-size: 15px;
    margin-bottom: 10px;
  }

  .form-group,
  .form-row {
    width: 100%;
    max-width: 100%;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px;
    width: 100%;
    max-width: 100%;
  }
}

.form-group {
  margin-bottom: 12px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 5px;
}

.required { color: var(--pemex-red); }
.optional { font-size: 12px; font-weight: 400; color: var(--text-light); }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  max-width: 100%;
  padding: 9px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-family: inherit;
  color: var(--text-dark);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  box-sizing: border-box;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234a4a6a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--pemex-green);
  box-shadow: 0 0 0 3px rgba(0,102,51,0.1);
}

.form-group input.is-error,
.form-group textarea.is-error,
.form-group select.is-error {
  border-color: var(--pemex-red);
  box-shadow: 0 0 0 3px rgba(218,33,40,0.1);
}

.form-group textarea { resize: vertical; min-height: 100px; line-height: 1.5; }

.form-error {
  display: block;
  font-size: 12px;
  color: var(--pemex-red);
  margin-top: 3px;
  min-height: 0;
  line-height: 1.3;
}

.form-status {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
}

.form-status--success {
  background: rgba(0,102,51,0.08);
  color: var(--pemex-green-dark);
  border: 1px solid rgba(0,102,51,0.2);
}

.form-status--error {
  background: rgba(218,33,40,0.06);
  color: var(--pemex-red-dark);
  border: 1px solid rgba(218,33,40,0.15);
}

.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.75);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 60px 0 40px;
}

.footer__logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer__logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer__brand-name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.footer__tagline {
  font-size: 14px;
  line-height: 1.7;
}

.footer__links h4,
.footer__factura h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 16px;
}

.footer__links ul li {
  margin-bottom: 8px;
}

.footer__links ul li a,
.footer__links ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}

.footer__links ul li a:hover { color: #fff; }
.footer__links ul li svg { flex-shrink: 0; }

.footer__factura p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
}

.footer__bottom p {
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

.footer__bottom a {
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}

.footer__bottom a:hover { color: #fff; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .factura-section__inner { grid-template-columns: 1fr; gap: 40px; }
  .services-extra { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { 
    grid-template-columns: 1fr 1fr;
    padding: 56px 28px 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --topbar-height: 52px;
  }

  .billing-topbar__link {
    flex-wrap: wrap;
    gap: 4px;
    text-align: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 13px;
  }

  .navbar__toggle { display: flex; }

  .navbar__menu {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 12px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    gap: 4px;
  }

  .navbar__menu.is-open { display: flex; }

  .navbar__link { padding: 12px 16px; border-radius: var(--radius-sm); width: 100%; }

  .navbar__link--factura {
    text-align: center;
    margin-left: 0;
    margin-top: 4px;
  }

  .hero__content { padding: 60px 24px; }

  .hero__info {
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }

  .btn-factura-hero { padding: 16px 20px; }
  .btn-factura-hero__title { font-size: 16px; }
  .btn-factura-hero__icon { font-size: 28px; }

  .services-grid { grid-template-columns: 1fr; }
  .services-extra { grid-template-columns: 1fr; }

  .contact-section__inner { 
    grid-template-columns: 1fr; 
    gap: 40px; 
    width: 100%;
    max-width: 100%;
  }

  .contact-form-wrapper {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .contact-form { 
    padding: 24px 18px;
    width: 100%;
    max-width: 100%;
  }

  .form-tabs {
    gap: 4px;
    margin-bottom: 20px;
    width: 100%;
    max-width: 100%;
  }

  .form-tab {
    font-size: 14px;
    padding: 12px 14px;
    gap: 6px;
    flex: 1;
    min-width: 120px;
  }

  .form-group,
  .form-row {
    width: 100%;
    max-width: 100%;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    width: 100%;
    max-width: 100%;
  }

  .location-section__info { flex-direction: column; }
  .location-info-card { min-width: unset; }

  .footer__inner { 
    grid-template-columns: 1fr; 
    gap: 32px;
    padding: 48px 24px 32px;
  }

  .footer__bottom {
    padding: 20px 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }

  .section-header { margin-bottom: 32px; }

  .factura-section,
  .services-section,
  .location-section,
  .contact-section {
    padding: 56px 0;
  }

  .factura-section__card { padding: 28px 20px; }

  .services-section { padding: 56px 0; }

  .btn-factura-hero {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .btn-factura-hero__content { text-align: center; }
  .btn-factura-hero__arrow { display: none; }

  .contact-form-wrapper {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
    padding: 0;
  }

  .form-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 2px;
    margin-bottom: 16px;
    width: 100%;
    max-width: 100%;
  }

  .form-tabs::-webkit-scrollbar {
    display: none;
  }

  .form-tab {
    font-size: 13px;
    padding: 10px 16px;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 140px;
  }

  .form-tab svg {
    display: none;
  }

  .contact-form {
    padding: 18px 14px;
    width: 100%;
    max-width: 100%;
  }

  .form-group,
  .form-row {
    width: 100%;
    max-width: 100%;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    width: 100%;
    max-width: 100%;
  }

  .form-section {
    margin-bottom: 16px;
    padding-bottom: 16px;
  }

  .form-section:last-of-type {
    margin-bottom: 12px;
  }

  .form-section-title {
    margin-bottom: 10px;
  }

  .form-group {
    margin-bottom: 10px;
  }

  .form-section-title {
    font-size: 15px;
  }

  .footer__inner {
    padding: 40px 20px 28px;
    gap: 28px;
  }

  .footer__bottom {
    padding: 18px 20px;
  }

  .footer__links h4,
  .footer__factura h4 {
    font-size: 13px;
  }

  .footer__links ul li a,
  .footer__links ul li,
  .footer__factura p {
    font-size: 13px;
  }

  .footer__bottom p {
    font-size: 12px;
    line-height: 1.6;
  }
}