/* ITSS — FacturaSer · Landing SaaS · Bootstrap 5.3 + tokens propios */

:root {
    --fs-navy: #0f2a43;
    --fs-navy-deep: #071525;
    --fs-green: #1fa463;
    --fs-green-hover: #178a52;
    --fs-cyan: #06b6d4;
    --fs-surface: #f4f7fb;
    --fs-muted: #64748b;
    --fs-radius: 12px;
    --fs-shadow: 0 18px 48px rgba(15, 42, 67, 0.12);
}

body.fs-landing {
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    color: #0f172a;
    background: #fff;
}

.fs-landing a { text-decoration: none; }

.fs-nav {
    background: #071525;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1040;
}

.fs-nav .navbar-brand {
    padding-top: 0;
    padding-bottom: 0;
    margin-right: 0.75rem;
    line-height: 0;
}

.fs-nav .navbar-brand img,
.fs-nav .fs-nav-logo {
    display: block;
    width: auto;
    height: auto;
    max-height: 52px;
    max-width: min(220px, 58vw);
    object-fit: contain;
    object-position: left center;
    background: transparent;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35));
}

@media (min-width: 992px) {
    .fs-nav .navbar-brand img,
    .fs-nav .fs-nav-logo {
        max-height: 56px;
        max-width: 240px;
    }
}

.fs-nav .nav-link {
    color: rgba(248, 250, 252, 0.85) !important;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem !important;
}

.fs-nav .nav-link:hover,
.fs-nav .nav-link:focus { color: var(--fs-cyan) !important; }

.fs-btn-ghost {
    color: #f8fafc !important;
    border: 1px solid rgba(248, 250, 252, 0.35);
    border-radius: 999px;
    padding: 0.45rem 1.1rem !important;
    font-weight: 700;
    font-size: 0.85rem;
}

.fs-btn-ghost:hover {
    border-color: var(--fs-cyan);
    color: var(--fs-cyan) !important;
}

.fs-btn-primary {
    background: linear-gradient(180deg, var(--fs-green) 0%, var(--fs-green-hover) 100%);
    border: none;
    color: #fff !important;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.5rem 1.25rem !important;
    box-shadow: 0 8px 24px rgba(31, 164, 99, 0.35);
}

.fs-btn-primary:hover {
    filter: brightness(1.05);
    color: #fff !important;
}

.fs-btn-outline-light {
    border-radius: 999px;
    font-weight: 700;
    padding: 0.5rem 1.25rem !important;
}

.fs-hero {
    position: relative;
    overflow: hidden;
    background: radial-gradient(1200px 600px at 10% -10%, rgba(6, 182, 212, 0.25), transparent 55%),
        linear-gradient(165deg, var(--fs-navy-deep) 0%, var(--fs-navy) 48%, #123552 100%);
    color: #f8fafc;
    padding: 5.5rem 0 4.5rem;
}

.fs-hero::after {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(31, 164, 99, 0.18), transparent 70%);
    pointer-events: none;
}

.fs-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #cbd5e1;
}

.fs-hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: -0.03em;
    max-width: 16ch;
}

.fs-hero-lead {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.55;
    color: #cbd5e1;
    max-width: 38rem;
}

.fs-hero-panel {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--fs-radius);
    padding: 1.25rem 1.35rem;
    backdrop-filter: blur(8px);
}

.fs-hero-panel li {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    margin-bottom: 0.65rem;
    font-size: 0.95rem;
    color: #e2e8f0;
}

.fs-hero-panel .bi { color: var(--fs-green); flex-shrink: 0; margin-top: 0.15rem; }

.fs-section {
    padding: 4.5rem 0;
}

.fs-section-alt { background: var(--fs-surface); }

.fs-section-head {
    max-width: 42rem;
    margin: 0 auto 2.5rem;
    text-align: center;
}

.fs-section-head h2 {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--fs-navy);
}

.fs-section-head p { color: var(--fs-muted); font-size: 1.05rem; }

.fs-feature-card {
    height: 100%;
    border: 1px solid #e2e8f0;
    border-radius: var(--fs-radius);
    padding: 1.5rem 1.35rem;
    background: #fff;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fs-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--fs-shadow);
}

.fs-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 42, 67, 0.08);
    color: var(--fs-navy);
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.fs-feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--fs-navy);
}

.fs-feature-card p {
    margin: 0;
    color: var(--fs-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.fs-benefit {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.fs-benefit .bi {
    font-size: 1.5rem;
    color: var(--fs-green);
}

.fs-pricing-card {
    height: 100%;
    border: 1px solid #e2e8f0;
    border-radius: var(--fs-radius);
    padding: 1.75rem 1.5rem;
    background: #fff;
    position: relative;
}

.fs-pricing-card.featured {
    border-color: var(--fs-green);
    box-shadow: var(--fs-shadow);
}

.fs-pricing-card .badge-popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--fs-green);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
}

.fs-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--fs-navy);
    line-height: 1.1;
}

.fs-price small {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fs-muted);
}

.fs-pricing-card ul {
    margin: 1.25rem 0 0;
    padding: 0;
    list-style: none;
}

.fs-pricing-card li {
    padding: 0.4rem 0;
    font-size: 0.92rem;
    color: #334155;
    border-bottom: 1px dashed #e2e8f0;
}

.fs-pricing-card li .bi { color: var(--fs-green); margin-right: 0.35rem; }

.fs-pricing-linear .fs-price small {
    display: inline;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

.fs-pricing-calc {
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

.fs-pricing-calc .form-range::-webkit-slider-thumb {
    background: var(--fs-green);
}

.fs-pricing-calc .form-range::-moz-range-thumb {
    background: var(--fs-green);
}

#contacto {
    position: relative;
    z-index: 1;
}
#contacto .fs-contact-form .btn,
#contacto .fs-contact-form .small {
    position: static;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
}
.fs-contact-wrap {
    border-radius: calc(var(--fs-radius) + 4px);
    overflow: hidden;
    box-shadow: var(--fs-shadow);
    border: 1px solid #e2e8f0;
}

.fs-contact-aside {
    background: linear-gradient(160deg, var(--fs-navy) 0%, #123552 100%);
    color: #e2e8f0;
    padding: 2rem 1.75rem;
}

.fs-contact-form {
    padding: 2rem 1.75rem;
    background: #fff;
}

.fs-contact-form .form-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #475569;
}

.fs-contact-form .form-control,
.fs-contact-form .form-select {
    border-radius: 10px;
    border-color: #cbd5e1;
    padding: 0.65rem 0.85rem;
}

.fs-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.fs-faq .accordion-button:not(.collapsed) {
    background: rgba(31, 164, 99, 0.08);
    color: var(--fs-navy);
    box-shadow: none;
}

.fs-faq .accordion-button { font-weight: 700; color: var(--fs-navy); }

.fs-footer {
    background: var(--fs-navy-deep);
    color: #94a3b8;
    padding: 3rem 0 2rem;
    font-size: 0.92rem;
}

.fs-footer a { color: #e2e8f0; }
.fs-footer a:hover { color: var(--fs-cyan); }

.fs-hub-pago {
    padding: 1.25rem 0 0.5rem;
    background: #fff;
}

.fs-hub-pago__card {
    border: 2px solid var(--fs-green);
    border-radius: var(--fs-radius);
    padding: 1.35rem 1.5rem;
    background: linear-gradient(135deg, rgba(31, 164, 99, 0.06), rgba(15, 42, 67, 0.04));
    box-shadow: var(--fs-shadow);
}

.fs-hub-pago__eyebrow {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--fs-green);
}

.fs-pago-bar {
    background: linear-gradient(90deg, rgba(31, 164, 99, 0.12), rgba(6, 182, 212, 0.08));
    border-bottom: 1px solid rgba(15, 42, 67, 0.08);
    padding: 0.85rem 0;
}

.fs-pago-bar__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
}

.fs-pago-bar__title {
    color: var(--fs-navy);
    margin-right: 0.35rem;
}

.fs-pago-bar__text {
    color: var(--fs-muted);
    font-size: 0.95rem;
}

.fs-pago-bar__code {
    font-size: 0.85em;
    color: var(--fs-navy);
}

.fs-pagos-nota-demo {
    height: 100%;
    background: linear-gradient(165deg, #071525 0%, #0f2a43 100%);
    color: #f8fafc;
    border-radius: var(--fs-radius);
    padding: 1.5rem 1.35rem;
    border: 2px solid var(--fs-green);
    box-shadow: var(--fs-shadow);
}
.fs-pagos-nota-demo__label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.85;
    margin-bottom: 0.5rem;
}
.fs-pagos-nota-demo__code {
    font-family: ui-monospace, monospace;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 800;
    word-break: break-all;
    margin: 0 0 1rem;
    color: #86efac;
}
.fs-pagos-nota-demo__hint {
    font-size: 0.9rem;
    line-height: 1.5;
    color: #cbd5e1;
    margin: 0;
}
.fs-pagos-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.fs-pagos-steps li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--fs-radius);
    padding: 1rem 1.1rem;
}
.fs-pagos-steps__n {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    background: var(--fs-green);
    font-size: 0.95rem;
}
.fs-pagos-steps strong { color: var(--fs-navy); }

.fs-pagos-enlace-fijo {
    padding: 1rem 1.15rem;
    border-radius: var(--fs-radius);
    background: #fff;
    border: 1px dashed rgba(15, 42, 67, 0.2);
}

.fs-pagos-enlace-fijo__label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--fs-muted);
}

.fs-pagos-enlace-fijo__url code {
    font-size: 0.85rem;
    word-break: break-all;
    color: var(--fs-navy);
}

.fs-footer-social-label,
.fs-contact-social-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #94a3b8;
    margin: 0;
}
.fs-contact-social-label { color: rgba(248, 250, 252, 0.75); }

.fs-social {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.fs-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: #f8fafc;
    font-size: 1.2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.28);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.fs-social a:hover {
    background: rgba(6, 182, 212, 0.35);
    border-color: var(--fs-cyan);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
    transform: translateY(-2px);
    color: #fff;
}
.fs-social--footer a {
    background: rgba(15, 42, 67, 0.6);
    border-color: rgba(148, 163, 184, 0.35);
}
.fs-social--contact {
    justify-content: flex-start;
}

.fs-footer-copy {
    width: 100%;
    text-align: center;
}

.fs-footer-brand {
    color: #f8fafc;
    font-weight: 800;
    font-size: 1.05rem;
}

.fs-legal-page {
    padding: 3rem 0 4rem;
    max-width: 720px;
}

.fs-legal-page h1 { font-weight: 800; color: var(--fs-navy); }
.fs-legal-page h2 { font-size: 1.15rem; margin-top: 1.75rem; color: var(--fs-navy); }

.fs-wa {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 1050;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #25d366;
    color: #fff;
    font-size: 1.65rem;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.fs-wa:hover {
    color: #fff;
    transform: scale(1.06);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.45);
}

@media (max-width: 991.98px) {
    .fs-hero { padding-top: 4.5rem; }
    .fs-section { padding: 3.25rem 0; }
}

/* Tira de bombillos — mismo tratamiento que .login-lights (login). */
.fs-landing-lights {
    position: sticky;
    top: 0;
    z-index: 1031;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    height: 22px;
    padding: 8px 22px 0;
    box-sizing: content-box;
    background: rgba(7, 21, 37, 0.92);
    pointer-events: none;
}
.fs-landing-lights::before {
    content: "";
    position: absolute;
    top: 12px;
    left: 22px;
    right: 22px;
    height: 2px;
    background: rgba(253, 230, 138, 0.45);
}
.fs-landing-lights span {
    position: relative;
    z-index: 1;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #fde68a;
    box-shadow: 0 0 10px #fbbf24;
    animation: login-twinkle 1.8s ease-in-out infinite;
}
.fs-landing-lights span:nth-child(3n) {
    background: #f87171;
    box-shadow: 0 0 10px #ef4444;
}
.fs-landing-lights span:nth-child(3n + 1) {
    background: #4ade80;
    box-shadow: 0 0 10px #22c55e;
}
.fs-landing-lights span:nth-child(2n) { animation-delay: .4s; }
.fs-landing-lights span:nth-child(3n) { animation-delay: .8s; }
body.fs-landing--navidad .fs-nav.sticky-top {
    top: 30px;
}
@keyframes login-twinkle {
    0%, 100% { opacity: .45; transform: scale(.85); }
    50% { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
    .fs-landing-lights span { animation: none; }
}


/* Admisión — mismo tema que el formulario de contacto de la portada */
.itss-admit {
  scroll-margin-top: 6.25rem;
  margin-top: 0.5rem;
  background: var(--fs-surface);
  color: #0f172a;
  padding: clamp(2.75rem, 6vw, 4.25rem) 1.15rem;
  border-top: 1px solid #e2e8f0;
}
body.fs-landing--navidad .itss-admit { scroll-margin-top: 6.75rem; }
.itss-admit__wrap { max-width: 920px; margin: 0 auto; }
.itss-admit__kicker {
  margin: 0 0 0.45rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--fs-green);
}
.itss-admit h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--fs-navy);
}
.itss-admit__lead, .itss-admit__note, .itss-admit__policy, .itss-admit fieldset p {
  color: var(--fs-muted);
  line-height: 1.6;
  max-width: 42rem;
}
.itss-admit__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.1rem 0 1.5rem; }
.itss-admit__wa {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--fs-navy);
  text-decoration: none;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  font-size: 0.92rem;
  font-weight: 700;
  background: #fff;
}
.itss-admit__wa:hover { border-color: var(--fs-green); color: var(--fs-green); }
.itss-admit__form {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: calc(var(--fs-radius) + 4px);
  box-shadow: var(--fs-shadow);
  padding: clamp(1.15rem, 3vw, 1.75rem);
}
.itss-admit fieldset {
  border: 0;
  margin: 0 0 1.35rem;
  padding: 0;
  min-width: 0;
}
.itss-admit legend {
  float: none;
  width: auto;
  display: block;
  padding: 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fs-navy);
  margin: 0 0 0.85rem;
  line-height: 1.3;
}
.itss-admit legend + * { clear: none; }
.itss-admit__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1rem;
}
.itss-admit__span { grid-column: 1 / -1; }
.itss-admit label {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
  margin: 0;
  min-width: 0;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #475569;
}
.itss-admit input,
.itss-admit select,
.itss-admit textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  background: #fff;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
  line-height: 1.4;
  box-shadow: none;
}
.itss-admit select {
  appearance: none;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem;
  padding-right: 2.25rem;
}
.itss-admit textarea { min-height: 7.5rem; resize: vertical; }
.itss-admit input::placeholder,
.itss-admit textarea::placeholder {
  color: #94a3b8;
  font-weight: 400;
  text-transform: none;
}
.itss-admit input:focus,
.itss-admit select:focus,
.itss-admit textarea:focus {
  outline: none;
  border-color: var(--fs-green);
  box-shadow: 0 0 0 3px rgba(31, 164, 99, 0.18);
}
.itss-admit__check {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 0.65rem;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.95rem;
  font-weight: 500;
  color: #0f172a;
}
.itss-admit__check input {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0.2rem 0 0;
  padding: 0;
  flex: 0 0 auto;
  accent-color: var(--fs-green);
}
.itss-admit__check a { color: var(--fs-green); font-weight: 700; }
.itss-admit__error { color: #b91c1c; margin: 0 0 0.8rem; }
.itss-admit__submitrow { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.itss-admit__submit {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  cursor: pointer;
  background: linear-gradient(180deg, var(--fs-green) 0%, var(--fs-green-hover) 100%);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: normal;
  text-transform: none;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(31, 164, 99, 0.35);
}
.itss-admit__submit:hover { filter: brightness(1.05); color: #fff; }
.itss-admit__ready[hidden], .itss-admit__error[hidden] { display: none !important; }
@media (max-width: 720px) {
  .itss-admit__grid { grid-template-columns: 1fr; }
}