/* =====================================================================
   AseContable - Landing
   Colores de marca (manual): Naranja #F39200 | Gris #868686 | Negro #1D1D1B
   Tipografía de marca: Sylfaen (títulos) + Segoe UI (texto), con respaldo web.
   ===================================================================== */

:root {
    --naranja: #F39200;
    --naranja-osc: #d77f00;
    --naranja-claro: #ffb84d;
    --gris: #868686;
    --gris-claro: #e9e9e9;
    --gris-bg: #f5f5f6;
    --negro: #1D1D1B;
    --blanco: #ffffff;

    --texto: #3a3a39;
    --radio: 16px;
    --sombra: 0 10px 30px rgba(29, 29, 27, .08);
    --sombra-fuerte: 0 18px 45px rgba(243, 146, 0, .22);
    --transicion: .35s cubic-bezier(.2, .7, .2, 1);

    --fuente-titulo: 'Sylfaen', 'PT Serif', Georgia, 'Times New Roman', serif;
    --fuente-texto: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 86px; }

body {
    margin: 0;
    font-family: var(--fuente-texto);
    color: var(--texto);
    background: var(--blanco);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--fuente-titulo);
    color: var(--negro);
    line-height: 1.15;
    margin: 0 0 .4em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1160px, 92%); margin-inline: auto; }

/* ---------------------- Botones ---------------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: .5rem;
    padding: .85rem 1.6rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transicion), box-shadow var(--transicion), background var(--transicion), color var(--transicion);
}
.btn-primary {
    background: var(--naranja);
    color: var(--blanco);
    box-shadow: var(--sombra-fuerte);
}
.btn-primary:hover { background: var(--naranja-osc); transform: translateY(-3px); }
.btn-ghost {
    background: transparent;
    color: var(--negro);
    border-color: var(--gris-claro);
}
.btn-ghost:hover { border-color: var(--naranja); color: var(--naranja); transform: translateY(-3px); }
.btn-block { width: 100%; }

/* ---------------------- Header / Nav ---------------------- */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: box-shadow var(--transicion), border-color var(--transicion);
}
.site-header.scrolled {
    box-shadow: 0 6px 20px rgba(29, 29, 27, .07);
    border-bottom-color: var(--gris-claro);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: .7rem 0; }
.brand-logo { height: 46px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav a {
    font-weight: 600; color: var(--negro); position: relative; padding: .3rem 0;
}
.main-nav a:not(.nav-cta)::after {
    content: ''; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
    background: var(--naranja); transition: width var(--transicion);
}
.main-nav a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
    background: var(--naranja); color: #fff !important;
    padding: .55rem 1.3rem; border-radius: 999px;
    box-shadow: 0 8px 20px rgba(243, 146, 0, .25);
}
.nav-cta:hover { background: var(--naranja-osc); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 3px; background: var(--negro); border-radius: 3px; transition: var(--transicion); }

/* ---------------------- Hero ---------------------- */
.hero {
    position: relative; overflow: hidden;
    padding: 150px 0 120px;
    background: linear-gradient(135deg, #fff 0%, #fff 55%, #fff7ec 100%);
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0; opacity: .9;
    background:
        radial-gradient(circle at 85% 20%, rgba(243, 146, 0, .12), transparent 45%),
        radial-gradient(circle at 95% 90%, rgba(134, 134, 134, .10), transparent 40%);
}
/* Flecha/arco naranja decorativo (motivo del logo) */
.hero-bg::after {
    content: ''; position: absolute; right: -120px; bottom: -160px;
    width: 520px; height: 520px; border-radius: 50%;
    border: 60px solid var(--naranja); border-right-color: transparent; border-bottom-color: transparent;
    transform: rotate(35deg); opacity: .10;
}
.hero-grid {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center;
}
.eyebrow {
    display: inline-block; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
    font-size: .8rem; color: var(--naranja); margin-bottom: 1rem;
}
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
.hero h1 .accent { color: var(--naranja); font-style: italic; }
.hero .lead { font-size: 1.2rem; color: var(--gris); max-width: 34ch; margin: 1.2rem 0 2rem; }
.hero .lead strong { color: var(--negro); }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 1.4rem; flex-wrap: wrap; margin-top: 2rem; color: var(--gris); font-weight: 600; font-size: .95rem; }
.hero-trust span { color: var(--negro); }

.hero-art { display: flex; justify-content: center; }
.hero-bulb {
    width: min(330px, 80%); height: auto;
    filter: drop-shadow(0 25px 40px rgba(243, 146, 0, .25));
    animation: float 5s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-18px); } }

.hero-wave {
    position: absolute; bottom: -1px; left: 0; right: 0; height: 70px;
    background: var(--gris-bg);
    clip-path: polygon(0 60%, 12% 30%, 28% 55%, 45% 20%, 62% 50%, 80% 22%, 100% 55%, 100% 100%, 0 100%);
    opacity: .7;
}

/* ---------------------- Secciones genéricas ---------------------- */
.section { padding: 100px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 3.5rem; }
.kicker {
    display: inline-block; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    font-size: .78rem; color: var(--naranja); margin-bottom: .6rem;
}
.kicker.light { color: var(--naranja-claro); }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.9rem); }
.section-sub { color: var(--gris); font-size: 1.1rem; }
.section-sub.light { color: rgba(255, 255, 255, .8); }

/* ---------------------- Misión / Visión ---------------------- */
.nosotros { background: var(--gris-bg); }
.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.mv-card {
    background: #fff; border-radius: var(--radio); padding: 2.6rem;
    box-shadow: var(--sombra); position: relative; overflow: hidden;
    border-top: 5px solid var(--naranja);
    transition: transform var(--transicion), box-shadow var(--transicion);
}
.mv-card:hover { transform: translateY(-6px); box-shadow: 0 22px 50px rgba(29, 29, 27, .12); }
.mv-card::before {
    content: ''; position: absolute; right: -40px; top: -40px; width: 130px; height: 130px;
    background: radial-gradient(circle, rgba(243, 146, 0, .12), transparent 70%); border-radius: 50%;
}
.mv-icon { color: var(--naranja); margin-bottom: 1rem; }
.mv-card h3 { font-size: 1.7rem; }
.mv-card p { color: var(--texto); font-size: 1.05rem; margin: 0; }

/* ---------------------- Servicios ---------------------- */
.serv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.serv-card {
    background: #fff; border: 1px solid var(--gris-claro); border-radius: var(--radio);
    padding: 2.2rem; transition: transform var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
    position: relative;
}
.serv-card:hover {
    transform: translateY(-8px); box-shadow: var(--sombra-fuerte); border-color: transparent;
}
.serv-icon {
    width: 64px; height: 64px; border-radius: 14px;
    display: grid; place-items: center; color: var(--naranja);
    background: linear-gradient(135deg, #fff3e0, #ffe6c2);
    margin-bottom: 1.2rem; transition: var(--transicion);
}
.serv-card:hover .serv-icon { background: var(--naranja); color: #fff; transform: rotate(-6deg); }
.serv-card h3 { font-size: 1.3rem; }
.serv-card p { color: var(--gris); margin: 0; }

/* ---------------------- Contacto ---------------------- */
.contacto {
    background: var(--negro);
    background-image:
        radial-gradient(circle at 12% 20%, rgba(243, 146, 0, .18), transparent 35%),
        radial-gradient(circle at 90% 80%, rgba(243, 146, 0, .10), transparent 35%);
    color: #fff;
}
.contacto h2 { color: #fff; }
.contacto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: start; }

.contacto-info .kicker { margin-bottom: .6rem; }
.contacto-list { list-style: none; padding: 0; margin: 2rem 0; display: grid; gap: 1.2rem; }
.contacto-list li { display: flex; gap: 1rem; align-items: flex-start; }
.ci-ico {
    flex: 0 0 44px; height: 44px; width: 44px; border-radius: 12px;
    display: grid; place-items: center; font-size: 1.2rem;
    background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12);
}
.contacto-list strong { display: block; color: #fff; font-size: .95rem; }
.contacto-list a, .contacto-list span:not(.ci-ico) { color: rgba(255, 255, 255, .75); }
.contacto-list a:hover { color: var(--naranja-claro); }

.social-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.social-row a {
    padding: .5rem 1.1rem; border-radius: 999px; font-weight: 600; font-size: .9rem;
    border: 1px solid rgba(255, 255, 255, .2); color: #fff; transition: var(--transicion);
}
.social-row a:hover { background: var(--naranja); border-color: var(--naranja); }

.contacto-form-wrap {
    background: #fff; color: var(--texto); border-radius: var(--radio);
    padding: 2.4rem; box-shadow: 0 30px 60px rgba(0, 0, 0, .3);
}
.contacto-form .field { margin-bottom: 1.1rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contacto-form label { display: block; font-weight: 600; color: var(--negro); margin-bottom: .35rem; font-size: .92rem; }
.contacto-form input, .contacto-form textarea {
    width: 100%; padding: .8rem 1rem; border: 1.5px solid var(--gris-claro); border-radius: 10px;
    font-family: inherit; font-size: 1rem; color: var(--negro); transition: var(--transicion);
    background: #fafafa;
}
.contacto-form input:focus, .contacto-form textarea:focus {
    outline: none; border-color: var(--naranja); background: #fff;
    box-shadow: 0 0 0 4px rgba(243, 146, 0, .12);
}
.contacto-form textarea { resize: vertical; }
.val-msg { color: #d32f2f; font-size: .85rem; }
.val-summary { color: #d32f2f; font-size: .9rem; }
.val-summary ul { margin: 0; padding-left: 1.1rem; }
.alert-ok {
    background: #e8f6ea; border: 1px solid #b8e0bd; color: #1e6b2a;
    padding: 1rem 1.2rem; border-radius: 12px; margin-bottom: 1.3rem;
    display: flex; flex-direction: column; gap: .2rem;
}

/* ---------------------- Footer ---------------------- */
.site-footer { background: #141413; color: rgba(255, 255, 255, .72); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 2.5rem; padding-bottom: 48px; }
.footer-logo { height: 52px; width: auto; margin-bottom: 1rem; }
.footer-tag { max-width: 32ch; color: rgba(255, 255, 255, .6); }
.footer-col h4 { color: #fff; font-family: var(--fuente-texto); font-size: 1rem; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.footer-col a:hover { color: var(--naranja-claro); }
.footer-contact li { font-size: .95rem; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0; font-size: .88rem; color: rgba(255, 255, 255, .5); }

/* ---------------------- WhatsApp flotante ---------------------- */
.wa-float {
    position: fixed; right: 22px; bottom: 22px; z-index: 200;
    width: 58px; height: 58px; border-radius: 50%;
    background: #25d366; color: #fff;
    display: grid; place-items: center;
    box-shadow: 0 12px 28px rgba(37, 211, 102, .45);
    transition: transform var(--transicion);
}
.wa-float:hover { transform: scale(1.1) rotate(-4deg); }

/* ---------------------- Animación reveal ---------------------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------------------- Responsive ---------------------- */
@media (max-width: 900px) {
    .hero-grid, .mv-grid, .contacto-grid { grid-template-columns: 1fr; }
    .serv-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-art { order: -1; }
    .hero-bulb { width: 200px; }
}
@media (max-width: 680px) {
    .nav-toggle { display: flex; }
    .main-nav {
        position: absolute; top: 100%; left: 0; right: 0;
        background: #fff; flex-direction: column; align-items: stretch;
        padding: 1rem; gap: .4rem; box-shadow: var(--sombra);
        transform: translateY(-12px); opacity: 0; pointer-events: none; transition: var(--transicion);
    }
    .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
    .main-nav a { padding: .7rem .4rem; }
    .nav-cta { text-align: center; }
    .serv-grid, .field-row, .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 70px 0; }
    .hero { padding: 120px 0 90px; }
}

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .hero-bulb { animation: none; }
    html { scroll-behavior: auto; }
}