/* === VARIABLES — Paleta oficial AIREVIA MX 2026 === */
/* Azul Institucional A: #1F376D | Azul Secundario B: #5895CE | Negro: #1A1A1A */
:root {
    --azul-marino: #1F376D;      /* Azul Institucional A — primario */
    --azul-airevia: #1F376D;     /* Azul Institucional A — mismo */
    --azul-brillante: #5895CE;   /* Azul Secundario B */
    --azul-suave: #deeaf7;       /* Azul Secundario B al 15% */
    --blanco: #ffffff;
    --gris-claro: #f4f7f9;
    --gris-borde: #eeeeee;
    --gris-texto: #666666;
    --negro-marca: #1A1A1A;      /* Negro oficial de marca */
    --rojo-error: #ff4d4d;
    --fuente-principal: 'Exo 2', sans-serif;
}

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

body {
    font-family: var(--fuente-principal);
    line-height: 1.6;
    color: #333;
    background-color: var(--blanco);
    overflow-x: hidden;
}

.contacto-valor-normal {
    white-space: normal;
}

/* Hero bullets */
.hero-bullets {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 22px;
}
.hero-bullet {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 1rem;
    color: rgba(255,255,255,0.88);
    font-weight: 400;
    line-height: 1.5;
}
.hero-bullet i {
    color: #5895CE;
    font-size: 0.5rem;
    margin-top: 7px;
    flex-shrink: 0;
}

/* Bloque contexto HVAC */
.hero-hvac-bloque {
    background: rgba(255,255,255,0.07);
    border-left: 3px solid var(--azul-brillante);
    border-radius: 0 10px 10px 0;
    padding: 14px 18px;
    margin-bottom: 28px;
    max-width: 600px;
}
.hero-hvac-bloque p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.65;
    margin: 0;
}
.hero-hvac-bloque strong { color: #fff; }

/* Botones hero en fila */
.hero-ctas {
    display: flex;
    gap: 14px;
    margin-bottom: 44px;
    flex-wrap: wrap;
}
.btn-hero-sec {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--blanco);
    padding: 15px 28px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    border: 1.5px solid rgba(255,255,255,0.35);
    font-family: var(--fuente-principal);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}
.btn-hero-sec:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.7);
    transform: translateY(-2px);
}

/* Nosotros — párrafo y frase destacada */
.nos-parrafo {
    background: var(--gris-claro);
    border-left: 4px solid var(--azul-brillante);
    border-radius: 0 12px 12px 0;
    padding: 18px 20px;
    margin-bottom: 18px;
}
.nos-parrafo p {
    font-size: 0.97rem;
    color: #333;
    line-height: 1.7;
    margin: 0;
}

.nos-frase-destacada {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: linear-gradient(135deg, #1F376D, #2d4f8e);
    border-radius: 14px;
    padding: 20px 22px;
    margin-bottom: 18px;
    color: rgba(255,255,255,0.9);
    font-size: 1rem;
    font-style: italic;
    line-height: 1.6;
}
.nos-frase-destacada i {
    color: #5895CE;
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-top: 2px;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 8%;
    background-color: var(--azul-marino);
    color: var(--blanco);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.logo,
.logo picture { display: flex; align-items: center; }
.logo-img {
    height: 90px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* === NOSOTROS === */
.nos-header {
    display: flex; align-items: center;
    gap: 18px; margin-bottom: 24px;
}
.nos-logo-wrap {
    width: 140px; height: 140px; min-width: 140px;
    background: var(--azul-suave);
    border-radius: 20px;
    display: flex; justify-content: center; align-items: center;
    padding: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(88,149,206,0.15);
}
.nos-logo {
    width: 100%; height: 100%;
    object-fit: contain;
}
.nos-logo-wrap picture,
.det-galeria-foto picture {
    display: block;
    width: 100%;
    height: 100%;
}
.nos-header-sep {
    width: 3px; height: 100px;
    background: var(--azul-brillante);
    border-radius: 2px; flex-shrink: 0;
}
.nos-titulo {
    font-size: 2rem; font-weight: 800;
    color: var(--azul-airevia); margin: 0 0 4px;
    border-left: none !important; padding-left: 0 !important;
}
.nos-subtitulo { font-size: 0.95rem; color: var(--gris-texto); margin: 0; }

/* Grid 2x2 */
.nos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}
.nos-card {
    background: var(--blanco);
    border: 1.5px solid #eef0f4;
    border-radius: 14px;
    padding: 20px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    will-change: transform;
    transform: translateZ(0);
    position: relative;
    overflow: hidden;
}
.nos-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--azul-brillante), #5895CE);
    border-radius: 14px 14px 0 0;
    opacity: 0;
    transition: opacity 0.22s;
}
.nos-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(88,149,206,0.12);
    border-color: #c8dff6;
}
.nos-card:hover::before { opacity: 1; }

.nos-card-icon {
    width: 44px; height: 44px; min-width: 44px;
    background: var(--azul-suave);
    border-radius: 12px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.2rem; color: var(--azul-brillante);
    transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
    will-change: transform;
}
.nos-card:hover .nos-card-icon {
    background: var(--azul-brillante);
    color: var(--blanco);
    transform: rotate(-8deg) scale(1.08);
}
.nos-card h4 {
    font-size: 0.97rem; font-weight: 700;
    color: var(--azul-airevia); margin: 0 0 6px;
}
.nos-card p {
    font-size: 0.84rem; color: var(--gris-texto);
    line-height: 1.55; margin: 0;
}

/* Banner */
.nos-banner {
    display: flex; align-items: center;
    justify-content: space-between; gap: 16px;
    background: linear-gradient(135deg, #1F376D, #2a4a8a);
    border-radius: 14px;
    padding: 18px 22px;
    flex-wrap: wrap;
}
.nos-banner-izq {
    display: flex; align-items: center; gap: 14px;
    color: rgba(255,255,255,0.85); font-size: 0.88rem;
}
.nos-banner-izq i { color: #5895CE; font-size: 1.3rem; flex-shrink: 0; }
.nos-banner-izq div { display: flex; flex-direction: column; gap: 2px; }
.nos-banner-izq strong { color: #fff; font-size: 0.95rem; }
.nos-banner-izq span { color: rgba(255,255,255,0.65); font-size: 0.8rem; }
.nos-banner-btn {
    display: flex; align-items: center; gap: 8px;
    background: var(--azul-brillante); color: var(--blanco);
    border: none; border-radius: 10px; padding: 11px 20px;
    font-family: var(--fuente-principal); font-size: 0.9rem; font-weight: 700;
    cursor: pointer; transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
}
.nos-banner-btn:hover { background: #1F376D; transform: translateY(-1px); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 18px;
    align-items: center;
}
.nav-links > li {
    flex: 0 0 auto;
}
.nav-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 38px;
    box-sizing: border-box;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 7px 16px;
    border-radius: 50px;
    border: 1px solid transparent;
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    letter-spacing: 0.3px;
    line-height: 1;
    white-space: nowrap;
}
.nav-links a i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 1.15em;
    width: 1.15em;
    line-height: 1;
}
.nav-links a:hover {
    color: var(--blanco);
    border-color: rgba(88,149,206,0.5);
    background: rgba(88,149,206,0.2);
    backdrop-filter: blur(4px);
}

.nav-auth-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 2px;
    padding-left: 16px;
    border-left: 1px solid rgba(255,255,255,0.18);
}

.nav-links a.nav-auth-link {
    padding: 8px 13px;
    color: rgba(255,255,255,0.92);
    border-color: rgba(88,149,206,0.34);
    background: rgba(255,255,255,0.06);
}

.nav-links a.nav-cotizador {
    width: 116px;
    flex: 0 0 116px;
    padding-inline: 14px;
    color: #fff;
    border-color: rgba(88,149,206,0.62);
    background: linear-gradient(180deg, #5895CE, #4384c9);
    box-shadow: 0 8px 18px rgba(0,0,0,0.14);
}

.nav-links a.nav-cotizador:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.34);
    background: linear-gradient(180deg, #66a8e5, #4a8ed4);
}

.nav-links a.nav-auth-primary {
    color: #fff;
    border-color: rgba(88,149,206,0.72);
    background: linear-gradient(180deg, #5895CE, #3f7cbe);
    box-shadow: 0 8px 18px rgba(0,0,0,0.18);
}

.nav-links a.nav-auth-link:hover {
    transform: translateY(-1px);
    border-color: rgba(255,255,255,0.38);
    background: rgba(88,149,206,0.24);
}

.nav-links a.nav-auth-primary:hover {
    background: linear-gradient(180deg, #66a8e5, #4688cc);
}

/* === HAMBURGER === */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1100;
}
.hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--blanco);
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Animación hamburger → X */
.hamburger.activo span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger.activo span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger.activo span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* === HERO === */
.hero {
    min-height: 100vh;
    background-image:
        linear-gradient(105deg, rgba(15,25,65,0.97) 0%, rgba(31,55,109,0.92) 45%, rgba(88,149,206,0.55) 100%),
        url('imagenes_Proyecto/sugarfood_1.jpeg');
    background-image:
        linear-gradient(105deg, rgba(15,25,65,0.97) 0%, rgba(31,55,109,0.92) 45%, rgba(88,149,206,0.55) 100%),
        image-set(
            url('imagenes_Proyecto/sugarfood_1.webp') type('image/webp'),
            url('imagenes_Proyecto/sugarfood_1.jpeg') type('image/jpeg')
        );
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: var(--blanco);
    padding: 130px 8% 70px;
    position: relative;
    overflow: hidden;
}

/* Línea decorativa lateral izquierda */
.hero::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, transparent, var(--azul-brillante), transparent);
}

.hero-content { max-width: 680px; position: relative; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(88,149,206,0.2);
    border: 1px solid rgba(88,149,206,0.5);
    color: #a8c8e8;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    padding: 9px 18px;
    border-radius: 50px;
    text-transform: uppercase;
    margin-bottom: 32px;
    backdrop-filter: blur(4px);
}
.hero-badge::before {
    content: '';
    width: 8px; height: 8px;
    background: #5895CE;
    border-radius: 50%;
    box-shadow: 0 0 8px #5895CE;
    animation: pulso 1.8s infinite;
}
@keyframes pulso {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(1.4); }
}

.hero-titulo {
    font-size: 5.5rem;
    font-weight: 800;
    line-height: 1.0;
    margin-bottom: 24px;
    letter-spacing: -2px;
    text-shadow: 0 2px 30px rgba(0,0,0,0.4);
}
/* Palabra resaltada en azul */
.hero-titulo .highlight {
    color: #5895CE;
}

.hero-subtitulo {
    font-size: 1.35rem;
    font-weight: 400;
    color: rgba(255,255,255,0.75);
    margin-bottom: 16px;
    line-height: 1.5;
    border-left: 3px solid var(--azul-brillante);
    padding-left: 14px;
}

.hero-descripcion {
    font-size: 1rem;
    font-weight: 300;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 560px;
}

/* Tarjetas de contacto dentro del hero */
.hero-contacto {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 780px;
}

.contacto-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 13px;
    padding: 12px 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(6px);
}
.contacto-card:hover {
    background: rgba(88,149,206,0.2);
    border-color: rgba(88,149,206,0.4);
    transform: translateY(-2px);
}

.contacto-icono {
    width: 46px;
    height: 46px;
    min-width: 46px;
    background: rgba(88,149,206,0.3);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    color: #5895CE;
}

.contacto-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #5895CE;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.contacto-valor {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--blanco);
    line-height: 1.35;
}

.contacto-card a,
.contacto-card a:visited,
.contacto-card a:hover,
.contacto-card a:active,
a[href^="tel"] {
    color: var(--blanco);
    text-decoration: none;
}

/* === FOOTER === */
.footer {
    background: #1F376D;
    color: var(--blanco);
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}

/* === MODALES === */
.overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(8px);
    z-index: 2000;
    overflow-y: auto;
}
.modal-card {
    background: var(--blanco);
    width: 90%;
    max-width: 900px;
    margin: 50px auto;
    padding: 40px;
    border-radius: 15px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    animation: slideIn 0.4s ease-out;
}
@keyframes slideIn {
    from { transform: translateY(-30px); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.close-btn { position: absolute; right: 25px; top: 15px; font-size: 35px; cursor: pointer; color: var(--azul-marino); transition: color 0.2s; z-index: 10; }
.close-btn:hover { color: var(--azul-brillante); }

.modal-body h2 { color: var(--azul-airevia); font-size: 2.2rem; margin-bottom: 15px; border-left: 6px solid var(--azul-brillante); padding-left: 15px; }
.modal-body p { margin-bottom: 15px; color: var(--gris-texto); font-size: 1.1rem; }
.modal-img { width: 100%; height: 300px; object-fit: cover; border-radius: 10px; margin-bottom: 20px; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }

.modal-list { list-style: none; margin: 20px 0; }
.modal-list li { padding: 12px 0 12px 30px; border-bottom: 1px solid var(--gris-borde); position: relative; }
.modal-list li::before { content: "✓"; position: absolute; left: 0; color: var(--azul-brillante); font-weight: bold; font-size: 1.2rem; }

/* === BENEFICIOS === */
.benef-header {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 24px;
}
.benef-header-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: var(--azul-suave);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    color: var(--azul-airevia);
}
.benef-header-sep {
    width: 3px;
    height: 52px;
    background: var(--azul-brillante);
    border-radius: 2px;
    flex-shrink: 0;
}
.benef-titulo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--azul-airevia);
    margin: 0 0 4px;
    border-left: none !important;
    padding-left: 0 !important;
}
.benef-subtitulo {
    font-size: 0.95rem;
    color: var(--gris-texto);
    margin: 0;
}

/* Grid 3 columnas */
.benef-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.benef-card {
    background: var(--blanco);
    border: 1.5px solid #eef0f4;
    border-radius: 14px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    position: relative;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
}
.benef-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--azul-brillante), #5895CE);
    border-radius: 14px 14px 0 0;
    opacity: 0;
    transition: opacity 0.25s;
}
.benef-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(88,149,206,0.12);
    border-color: #c8dff6;
}
.benef-card:hover::before { opacity: 1; }
.benef-card-icon {
    width: 52px;
    height: 52px;
    background: #eaf2fb;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--azul-brillante);
    margin-bottom: 16px;
    transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease; will-change: transform;
}
.benef-card:hover .benef-card-icon {
    background: var(--azul-brillante);
    color: var(--blanco);
    transform: rotate(-8deg) scale(1.08);
}
.benef-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #0d1b2e;
    margin: 0 0 10px;
    line-height: 1.3;
}
.benef-card-linea {
    width: 28px;
    height: 3px;
    background: var(--azul-brillante);
    border-radius: 2px;
    margin-bottom: 12px;
    transition: width 0.3s ease;
}
.benef-card:hover .benef-card-linea { width: 48px; }
.benef-card p {
    font-size: 0.88rem;
    color: var(--gris-texto);
    line-height: 1.55;
    margin: 0;
}

/* Banner inferior */
.benef-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: var(--gris-claro);
    border-radius: 14px;
    padding: 18px 22px;
    flex-wrap: wrap;
}
.benef-banner-izq {
    display: flex;
    align-items: center;
    gap: 14px;
}
.benef-banner-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: var(--azul-brillante);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    color: var(--blanco);
}
.benef-banner-izq div {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.benef-banner-izq strong {
    font-size: 0.95rem;
    color: #0d1b2e;
    font-weight: 700;
}
.benef-banner-izq span {
    font-size: 0.83rem;
    color: var(--gris-texto);
}
.benef-banner-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--azul-brillante);
    color: var(--blanco);
    border: none;
    border-radius: 10px;
    padding: 12px 22px;
    font-family: var(--fuente-principal);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
}
.benef-banner-btn:hover {
    background: var(--azul-airevia);
    transform: translateY(-1px);
}

/* === PROYECTOS === */
.proy-header {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 24px;
}
.proy-header-icon {
    width: 60px; height: 60px; min-width: 60px;
    background: var(--azul-suave);
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.6rem;
    color: var(--azul-airevia);
}
.proy-header-sep {
    width: 3px; height: 52px;
    background: var(--azul-brillante);
    border-radius: 2px; flex-shrink: 0;
}
.proy-titulo {
    font-size: 2rem; font-weight: 800;
    color: var(--azul-airevia); margin: 0 0 4px;
    border-left: none !important; padding-left: 0 !important;
}
.proy-subtitulo {
    font-size: 0.95rem;
    color: var(--gris-texto);
    margin: 0;
}

/* Grid 3 columnas */
.proy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}

/* Card individual */
.proy-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--blanco);
    border: 1.5px solid #eef0f4;
    border-radius: 14px;
    padding: 18px 16px;
    cursor: pointer;
    text-align: left;
    font-family: var(--fuente-principal);
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    will-change: transform;
    transform: translateZ(0);
    position: relative;
    overflow: hidden;
}
.proy-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--azul-brillante), #a8c8e8);
    border-radius: 14px 14px 0 0;
    opacity: 0;
    transition: opacity 0.22s;
}
.proy-card:hover {
    border-color: #c8dff6;
    box-shadow: 0 10px 24px rgba(88,149,206,0.12);
    transform: translateY(-4px);
}
.proy-card:hover::before { opacity: 1; }

/* Icono circular */
.proy-card-icon {
    width: 52px; height: 52px; min-width: 52px;
    background: var(--azul-suave);
    border-radius: 50%;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.2rem;
    color: var(--azul-brillante);
    transition: background 0.22s ease, color 0.22s ease, transform 0.22s ease;
    will-change: transform;
}
.proy-card:hover .proy-card-icon {
    background: var(--azul-brillante);
    color: var(--blanco);
    transform: rotate(-8deg) scale(1.08);
}

/* Texto */
.proy-card-info {
    flex: 1; display: flex; flex-direction: column; gap: 4px;
}
.proy-card-info strong {
    font-size: 0.97rem; font-weight: 700;
    color: var(--azul-airevia);
}
.proy-card-info span {
    font-size: 0.78rem; color: var(--gris-texto); line-height: 1.4;
}

/* Flecha */
.proy-card-arrow {
    color: var(--azul-brillante);
    font-size: 0.85rem;
    opacity: 0.4;
    transition: opacity 0.22s, transform 0.22s;
}
.proy-card:hover .proy-card-arrow { opacity: 1; transform: translateX(3px); }

/* Banner inferior — igual que los otros modales */
.proy-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: linear-gradient(135deg, #1F376D, #2a4a8a);
    border-radius: 14px;
    padding: 18px 22px;
    flex-wrap: wrap;
}
.proy-banner-izq {
    display: flex; align-items: center; gap: 14px;
    font-size: 0.92rem; color: rgba(255,255,255,0.85);
}
.proy-banner-izq i { color: #a8c8e8; font-size: 1.3rem; flex-shrink: 0; }
.proy-banner-izq strong { color: #fff; }
.proy-banner-btn {
    display: flex; align-items: center; gap: 8px;
    background: var(--azul-brillante); color: var(--blanco);
    border: none; border-radius: 10px; padding: 11px 20px;
    font-family: var(--fuente-principal);
    font-size: 0.9rem; font-weight: 700;
    cursor: pointer; transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
}
.proy-banner-btn:hover { background: var(--azul-airevia); transform: translateY(-1px); }

/* Detalle de proyecto */
/* Detalle de proyecto */
.btn-regresar-proyectos {
    background: none;
    border: none;
    color: var(--azul-brillante);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--fuente-principal);
    padding: 0;
    margin-bottom: 4px;
}
.btn-regresar-proyectos:hover { text-decoration: underline; }

.det-wrap { animation: fadeIn 0.35s ease; }

.det-titulo-bloque {
    border-left: 5px solid var(--azul-brillante);
    padding-left: 16px;
    margin: 18px 0 22px;
}
.det-titulo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--azul-airevia);
    margin: 0 0 4px;
    border-left: none !important;
    padding-left: 0 !important;
}
.det-subtitulo {
    font-size: 0.95rem;
    color: var(--gris-texto);
    margin: 0;
}

/* Galería 2x2 */
.det-galeria {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 165px 165px;
    gap: 10px;
    margin-bottom: 18px;
}
.det-galeria-foto {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
}
.det-galeria-foto img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}
.det-galeria-foto:hover img { transform: scale(1.05); }

/* Overlay lupa al hover */
.det-foto-overlay {
    position: absolute;
    inset: 0;
    background: rgba(31,55,109,0.45);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.25s ease;
    font-size: 1.6rem;
    color: #fff;
}
.det-galeria-foto:hover .det-foto-overlay { opacity: 1; }

/* === LIGHTBOX === */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.93);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(6px);
}
.lightbox.activo { display: flex; }

.lightbox img {
    max-width: 88vw;
    max-height: 82vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    animation: fadeIn 0.2s ease;
}

.lightbox-close {
    position: fixed;
    top: 20px; right: 24px;
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 1.4rem;
    width: 44px; height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
    z-index: 10000;
}
.lightbox-close:hover { background: rgba(255,255,255,0.25); }

.lightbox-prev,
.lightbox-next {
    position: fixed;
    top: 50%; transform: translateY(-50%);
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 1.2rem;
    width: 48px; height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
    z-index: 10000;
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255,255,255,0.25); }

.lightbox-counter {
    position: fixed;
    bottom: 20px;
    left: 50%; transform: translateX(-50%);
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    font-family: var(--fuente-principal);
    background: rgba(0,0,0,0.4);
    padding: 5px 14px;
    border-radius: 20px;
}

/* Metadatos */
.det-meta {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--gris-borde);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.det-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 130px;
    padding: 4px 0;
}
.det-meta-item i {
    font-size: 1.1rem;
    color: var(--azul-brillante);
}
.det-meta-item div {
    display: flex;
    flex-direction: column;
}
.det-meta-label {
    font-size: 0.72rem;
    color: var(--gris-texto);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.det-meta-item strong {
    font-size: 0.95rem;
    color: #111;
    font-weight: 700;
}
.det-meta-sep {
    width: 1px;
    height: 36px;
    background: var(--gris-borde);
    margin: 0 16px;
}

/* Descripción */
.det-descripcion {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    border: 1px solid var(--gris-borde);
    border-left: 4px solid var(--azul-brillante);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    background: var(--blanco);
}
.det-desc-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--azul-suave);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--azul-airevia);
}
.det-descripcion h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--azul-airevia);
    margin: 0 0 6px;
}
.det-descripcion p {
    font-size: 0.92rem;
    color: var(--gris-texto);
    line-height: 1.6;
    margin: 0;
}

/* Botones footer */
.det-footer-btns {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}
.det-btn-secundario {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--blanco);
    color: var(--azul-airevia);
    border: 1.5px solid var(--gris-borde);
    border-radius: 10px;
    padding: 12px 22px;
    font-family: var(--fuente-principal);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}
.det-btn-secundario:hover {
    border-color: var(--azul-brillante);
    color: var(--azul-brillante);
}
.det-btn-primario {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--azul-brillante);
    color: var(--blanco);
    border: none;
    border-radius: 10px;
    padding: 12px 22px;
    font-family: var(--fuente-principal);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
}
.det-btn-primario:hover { background: var(--azul-airevia); }

/* === FORMULARIOS === */
.modal-form { display: flex; flex-direction: column; gap: 15px; margin-top: 20px; }
.modal-form input,
.modal-form textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--fuente-principal);
    font-size: 1rem;
}
.modal-form input:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--azul-brillante);
    box-shadow: 0 0 5px rgba(88,149,206,0.2);
}

.btn-send {
    background: var(--azul-brillante);
    color: var(--blanco);
    padding: 16px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-family: var(--fuente-principal);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.btn-send:hover { background: #1F376D; }
.btn-send:disabled { background: #aaa; cursor: not-allowed; }

#mensaje-status { transition: all 0.3s ease; font-size: 0.95rem; }
.error-mensaje { color: var(--rojo-error); font-size: 0.8rem; margin-top: -10px; margin-bottom: 5px; display: none; font-weight: bold; }
.input-error { border: 2px solid var(--rojo-error) !important; }

/* === SOLUCIONES === */
.sol-header {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 24px;
}
.sol-header-icon {
    width: 60px; height: 60px; min-width: 60px;
    background: var(--azul-suave);
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.6rem;
    color: var(--azul-airevia);
}
.sol-header-sep {
    width: 3px; height: 52px;
    background: var(--azul-brillante);
    border-radius: 2px; flex-shrink: 0;
}
.sol-titulo {
    font-size: 2rem; font-weight: 800;
    color: var(--azul-airevia);
    margin: 0 0 4px;
    border-left: none !important;
    padding-left: 0 !important;
}
.sol-subtitulo { font-size: 0.95rem; color: var(--gris-texto); margin: 0; }

/* Grid 2x2 */
.sol-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}

.sol-card {
    background: var(--blanco);
    border: 1.5px solid #eef0f4;
    border-radius: 16px;
    padding: 22px 20px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    position: relative;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
}
.sol-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--azul-brillante), #5895CE);
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.25s;
}
.sol-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(88,149,206,0.12);
    border-color: #c8dff6;
}
.sol-card:hover::before { opacity: 1; }

.sol-icon-wrap {
    width: 50px; height: 50px;
    background: var(--azul-suave);
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.3rem;
    color: var(--azul-brillante);
    transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease; will-change: transform;
}
.sol-card:hover .sol-icon-wrap {
    background: var(--azul-brillante);
    color: var(--blanco);
    transform: rotate(-8deg) scale(1.08);
}

.sol-card-body { display: flex; flex-direction: column; gap: 8px; }

.sol-card-body h4 {
    font-size: 1rem; font-weight: 700;
    color: var(--azul-airevia); margin: 0;
}
.sol-card-body p {
    font-size: 0.84rem; color: var(--gris-texto);
    line-height: 1.55; margin: 0;
}

.sol-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.sol-tags span {
    font-size: 0.68rem; font-weight: 600;
    color: var(--azul-brillante);
    background: #eaf2fb;
    border: 1px solid #c8dff6;
    border-radius: 20px;
    padding: 3px 9px;
    display: flex; align-items: center; gap: 4px;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.sol-card:hover .sol-tags span {
    background: var(--azul-brillante);
    color: #fff;
    border-color: var(--azul-brillante);
}
.sol-tags span i { font-size: 0.6rem; }

/* Banner inferior */
.sol-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: linear-gradient(135deg, #1F376D, #2a4a8a);
    border-radius: 14px;
    padding: 18px 22px;
    flex-wrap: wrap;
}
.sol-banner-texto {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255,255,255,0.85);
    font-size: 0.92rem;
}
.sol-banner-texto i { color: #5895CE; font-size: 1.1rem; flex-shrink: 0; }
.sol-banner-texto strong { color: #fff; }
.sol-banner-btn {
    display: flex; align-items: center; gap: 8px;
    background: var(--azul-brillante);
    color: var(--blanco);
    border: none; border-radius: 10px;
    padding: 11px 20px;
    font-family: var(--fuente-principal);
    font-size: 0.9rem; font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    white-space: nowrap;
}
.sol-banner-btn:hover { background: #1F376D; transform: translateY(-1px); }

.nos-banner-btn,
.benef-banner-btn,
.proy-banner-btn,
.sol-banner-btn,
.det-btn-primario,
.btn-hero-main {
    text-decoration: none;
}

/* === APLICACIONES === */
.apl-header {
    display: flex; align-items: center;
    gap: 18px; margin-bottom: 24px;
}
.apl-header-icon {
    width: 60px; height: 60px; min-width: 60px;
    background: var(--azul-suave); border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.6rem; color: var(--azul-airevia);
}
.apl-header-sep {
    width: 3px; height: 52px;
    background: var(--azul-brillante);
    border-radius: 2px; flex-shrink: 0;
}
.apl-titulo {
    font-size: 2rem; font-weight: 800;
    color: var(--azul-airevia); margin: 0 0 4px;
    border-left: none !important; padding-left: 0 !important;
}
.apl-subtitulo { font-size: 0.95rem; color: var(--gris-texto); margin: 0; }

/* Grid 3 columnas */
.apl-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 18px;
}

.apl-card {
    background: var(--blanco);
    border: 1.5px solid #eef0f4;
    border-radius: 16px;
    padding: 22px 18px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    position: relative;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
}
/* Línea de color arriba al hover */
.apl-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--azul-brillante), #5895CE);
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.25s;
}
.apl-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(88,149,206,0.12);
    border-color: #c8dff6;
}
.apl-card:hover::before { opacity: 1; }

/* Ícono */
.apl-icon-wrap {
    width: 50px; height: 50px;
    background: var(--azul-suave);
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.3rem;
    color: var(--azul-brillante);
    transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease; will-change: transform;
}
.apl-card:hover .apl-icon-wrap {
    background: var(--azul-brillante);
    color: var(--blanco);
    transform: rotate(-8deg) scale(1.08);
}

.apl-card-body { display: flex; flex-direction: column; gap: 7px; }
.apl-num-label { display: none; }

.apl-card-body h4 {
    font-size: 0.98rem; font-weight: 700;
    color: var(--azul-airevia); margin: 0;
}
.apl-card-body p {
    font-size: 0.83rem; color: var(--gris-texto);
    line-height: 1.55; margin: 0;
}

/* Tags */
.apl-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.apl-tags span {
    font-size: 0.68rem; font-weight: 600;
    color: var(--azul-brillante);
    background: #eaf2fb;
    border: 1px solid #c8dff6;
    border-radius: 20px;
    padding: 3px 9px;
    display: flex; align-items: center; gap: 4px;
    transition: background 0.18s ease, color 0.18s ease;
}
.apl-card:hover .apl-tags span {
    background: var(--azul-brillante);
    color: #fff;
    border-color: var(--azul-brillante);
}
.apl-tags span i { font-size: 0.6rem; }

/* Banner inferior */
.apl-banner {
    display: flex; align-items: center;
    justify-content: space-between; gap: 16px;
    background: linear-gradient(135deg, #1F376D, #2a4a8a);
    border-radius: 14px;
    padding: 18px 22px;
    flex-wrap: wrap;
}
.apl-banner-izq {
    display: flex; align-items: center; gap: 14px;
    font-size: 0.92rem; color: rgba(255,255,255,0.8);
}
.apl-banner-izq i { color: #5895CE; font-size: 1.3rem; flex-shrink: 0; }
.apl-banner-izq strong { color: #fff; }
.apl-banner-btn {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1.5px solid rgba(255,255,255,0.25);
    border-radius: 10px;
    padding: 11px 20px;
    font-family: var(--fuente-principal);
    font-size: 0.9rem; font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.apl-banner-btn:hover {
    background: var(--azul-brillante);
    border-color: var(--azul-brillante);
}

/* =====================================================
   RESPONSIVE — móvil (max 768px)
   ===================================================== */
@media (max-width: 768px) {

    /* ── Navbar ── */
    .hamburger { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100vh;
        background: #1F376D;
        justify-content: center;
        align-items: center;
        gap: 35px;
        z-index: 1050;
        animation: fadeIn 0.25s ease;
    }
    .nav-links.abierto { display: flex; }
    .nav-links a { font-size: 1.4rem; font-weight: 700; }
    .nav-auth-group {
        flex-direction: column;
        gap: 14px;
        margin-left: 0;
        padding-left: 0;
        border-left: 0;
    }
    .nav-links a.nav-auth-link {
        justify-content: center;
        min-width: 230px;
        font-size: 1.1rem;
    }

    /* ── Hero ── */
    .hero                  { padding: 110px 6% 60px; }
    .hero-titulo           { font-size: 2.6rem; letter-spacing: -0.5px; }
    .hero-subtitulo        { font-size: 1.2rem; }
    .hero-descripcion      { font-size: 0.95rem; }
    .hero-hvac-bloque      { padding: 14px 16px; }
    .hero-hvac-bloque p    { font-size: 0.9rem; }
    .hero-bullet           { font-size: 0.95rem; }

    /* Tarjetas de contacto: 1 columna, texto en una línea */
    .hero-contacto         { grid-template-columns: 1fr; gap: 12px; }
    .contacto-card         { padding: 16px 18px; gap: 14px; }
    .contacto-valor        { font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

    /* ── Modal base ── */
    .modal-card            { padding: 24px 20px; margin: 14px auto; width: 96%; }
    .overlay               { padding: 0; }

    /* Encabezados de modales */
    .nos-titulo, .benef-titulo, .sol-titulo,
    .apl-titulo, .proy-titulo            { font-size: 1.6rem; }
    .nos-subtitulo, .benef-subtitulo, .sol-subtitulo,
    .apl-subtitulo, .proy-subtitulo      { font-size: 0.9rem; }

    /* Ícono del header */
    .nos-logo-wrap         { width: 60px; height: 60px; min-width: 60px; }
    .nos-header-sep,
    .benef-header-sep,
    .sol-header-sep,
    .apl-header-sep,
    .proy-header-sep       { height: 48px; }

    /* ── Nosotros ── */
    .nos-grid              { grid-template-columns: 1fr; gap: 12px; }
    .nos-parrafo p         { font-size: 0.95rem; }
    .nos-frase-destacada   { font-size: 0.95rem; padding: 18px; }
    .nos-banner            { flex-direction: column; align-items: flex-start; gap: 14px; }
    .nos-banner-btn        { width: 100%; justify-content: center; }

    /* ── Beneficios ── */
    .benef-grid            { grid-template-columns: 1fr; gap: 12px; }
    .benef-card p          { font-size: 0.9rem; }
    .benef-banner          { flex-direction: column; align-items: flex-start; }
    .benef-banner-btn      { width: 100%; justify-content: center; }

    /* ── Proyectos — cuadrícula ── */
    .proy-grid             { grid-template-columns: 1fr; gap: 12px; }
    .proy-card-info strong { font-size: 1rem; }
    .proy-card-info span   { font-size: 0.85rem; }
    .proy-banner           { flex-direction: column; align-items: flex-start; }
    .proy-banner-btn       { width: 100%; justify-content: center; }

    /* ── Proyectos — detalle ── */
    .det-galeria           { grid-template-columns: 1fr 1fr; grid-template-rows: 150px 150px; gap: 8px; }
    .det-titulo-bloque     { margin: 14px 0 18px; }
    .det-titulo            { font-size: 1.5rem; }
    .det-subtitulo         { font-size: 0.88rem; }

    /* Metadatos en 2 columnas */
    .det-meta              { flex-wrap: wrap; gap: 12px; padding: 14px; }
    .det-meta-sep          { display: none; }
    .det-meta-item         { min-width: 45%; flex: 1; }
    .det-meta-label        { font-size: 0.7rem; }
    .det-meta-item strong  { font-size: 0.92rem; }

    /* Descripción */
    .det-descripcion       { flex-direction: column; gap: 12px; padding: 16px; }
    .det-desc-icon         { width: 44px; height: 44px; font-size: 1.2rem; }
    .det-descripcion h4    { font-size: 0.95rem; }
    .det-descripcion p     { font-size: 0.9rem; }

    /* Botones footer del detalle */
    .det-footer-btns       { flex-direction: column; gap: 10px; }
    .det-btn-secundario,
    .det-btn-primario      { width: 100%; justify-content: center; font-size: 0.95rem; }

    /* ── Soluciones ── */
    .sol-grid              { grid-template-columns: 1fr; gap: 12px; }
    .sol-card-body p       { font-size: 0.9rem; }
    .sol-banner            { flex-direction: column; align-items: flex-start; }
    .sol-banner-btn        { width: 100%; justify-content: center; }

    /* ── Aplicaciones ── */
    .apl-grid              { grid-template-columns: 1fr; gap: 12px; }
    .apl-card-body p       { font-size: 0.9rem; }
    .apl-banner            { flex-direction: column; align-items: flex-start; }
    .apl-banner-btn        { width: 100%; justify-content: center; }

    /* ── Lightbox en móvil ── */
    .lightbox img          { max-width: 96vw; max-height: 78vh; }
    .lightbox-prev         { left: 8px; width: 40px; height: 40px; font-size: 1rem; }
    .lightbox-next         { right: 8px; width: 40px; height: 40px; font-size: 1rem; }
    .lightbox-close        { top: 12px; right: 12px; width: 40px; height: 40px; font-size: 1.2rem; }

    /* ── Footer ── */
    .footer                { font-size: 0.82rem; padding: 18px 12px; }
}

/* Pantallas muy pequeñas (400px o menos) */
@media (max-width: 400px) {
    .hero-titulo           { font-size: 2rem; }
    .det-galeria           { grid-template-rows: 120px 120px; }
    .contacto-valor        { font-size: 0.88rem; }
}

/* Refuerzos generales para evitar desbordes en pantallas pequenas */
img,
video,
canvas,
svg {
    max-width: 100%;
}

.hero-content,
.modal-body,
.nos-card,
.benef-card,
.proy-card,
.sol-card,
.apl-card,
.det-wrap,
.det-meta-item,
.det-descripcion {
    min-width: 0;
}

.hero-titulo,
.modal-body h2,
.nos-titulo,
.benef-titulo,
.proy-titulo,
.sol-titulo,
.apl-titulo,
.det-titulo,
.contacto-valor,
.det-meta-item strong {
    overflow-wrap: anywhere;
    letter-spacing: 0;
}

.modal-card {
    width: min(900px, calc(100vw - 28px));
    max-height: calc(100dvh - 28px);
    overflow: auto;
}

.modal-img {
    height: clamp(180px, 34vh, 300px);
}

@media (max-width: 1120px) {
    .navbar {
        padding: 8px 5%;
    }

    .logo-img {
        height: 76px;
    }

    .nav-links {
        gap: 8px;
    }

    .nav-links a {
        min-height: 36px;
        padding: 7px 10px;
        font-size: 0.82rem;
        gap: 6px;
    }

    .nav-auth-group {
        padding-left: 10px;
    }

    .nav-links a.nav-auth-link {
        padding-inline: 11px;
    }

    .nav-links a.nav-cotizador {
        width: 108px;
        flex-basis: 108px;
        padding-inline: 11px;
    }
}

@media (max-width: 980px) {
    .hamburger { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100vh;
        background: #1F376D;
        justify-content: center;
        align-items: center;
        gap: 28px;
        z-index: 1050;
        animation: fadeIn 0.25s ease;
    }
    .nav-links.abierto { display: flex; }
    .nav-links a {
        min-width: min(280px, 82vw);
        font-size: 1.25rem;
        font-weight: 700;
        padding: 12px 20px;
    }
    .nav-auth-group {
        flex-direction: column;
        gap: 14px;
        margin-left: 0;
        padding-left: 0;
        border-left: 0;
    }
    .nav-links a.nav-auth-link {
        justify-content: center;
        min-width: min(280px, 82vw);
        font-size: 1.1rem;
    }

    .nav-links a.nav-cotizador {
        width: min(280px, 82vw);
        flex-basis: auto;
        min-width: min(280px, 82vw);
    }
}

@media (max-width: 768px) {
    .modal-card {
        width: calc(100vw - 24px);
        max-height: calc(100dvh - 24px);
        margin: 12px auto;
    }

    .hero-badge {
        max-width: 100%;
        white-space: normal;
        letter-spacing: 1.5px;
    }

    .hero-ctas > *,
    .btn-hero-sec {
        width: 100%;
        justify-content: center;
    }

    .contacto-valor {
        white-space: normal;
    }

    .det-galeria {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, minmax(132px, 36vw));
    }

    .lightbox img {
        width: auto;
        height: auto;
    }
}

@media (max-width: 420px) {
    .nos-header,
    .benef-header,
    .proy-header,
    .sol-header,
    .apl-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .nos-header-sep,
    .benef-header-sep,
    .proy-header-sep,
    .sol-header-sep,
    .apl-header-sep {
        display: none;
    }

    .nos-card,
    .nos-frase-destacada,
    .benef-banner-izq,
    .sol-banner-texto,
    .apl-banner-izq {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Proyectos: presentacion movil mas comoda */
@media (max-width: 768px) {
    .proy-header {
        margin-bottom: 18px;
    }

    .proy-header-icon {
        width: 52px;
        height: 52px;
        min-width: 52px;
        border-radius: 13px;
    }

    .proy-titulo {
        font-size: 1.72rem;
        line-height: 1.12;
    }

    .proy-subtitulo {
        max-width: 34rem;
        font-size: 0.94rem;
        line-height: 1.55;
    }

    .proy-grid {
        gap: 14px;
        margin-bottom: 20px;
    }

    .proy-card {
        display: grid;
        grid-template-columns: 48px minmax(0, 1fr) 30px;
        align-items: center;
        gap: 13px;
        min-height: 94px;
        padding: 17px 15px;
        border-color: #dfe8f2;
        border-left: 4px solid var(--azul-brillante);
        border-radius: 12px;
        background:
            linear-gradient(180deg, rgba(255,255,255,0.98), rgba(247,250,253,0.98)),
            var(--blanco);
        box-shadow: 0 8px 22px rgba(31, 55, 109, 0.09);
    }

    .proy-card::before {
        height: 0;
    }

    .proy-card-icon {
        width: 48px;
        height: 48px;
        min-width: 48px;
        border-radius: 12px;
        font-size: 1.08rem;
    }

    .proy-card-info {
        gap: 7px;
    }

    .proy-card-info strong {
        font-size: 1.08rem;
        line-height: 1.2;
    }

    .proy-card-info span {
        font-size: 0.9rem;
        line-height: 1.45;
    }

    .proy-card-arrow {
        width: 30px;
        height: 30px;
        display: grid;
        place-items: center;
        border-radius: 50%;
        background: #eaf2fb;
        color: var(--azul-airevia);
        opacity: 1;
        font-size: 0.78rem;
    }

    .proy-card:hover,
    .proy-card:focus-visible {
        transform: translateY(-2px);
    }

    .proy-banner {
        padding: 18px;
        border-radius: 12px;
    }

    .proy-banner-izq {
        align-items: flex-start;
        line-height: 1.5;
    }

    .btn-regresar-proyectos {
        min-height: 40px;
        display: inline-flex;
        padding: 0 12px;
        border: 1px solid #dfe8f2;
        border-radius: 9px;
        background: #f6f9fc;
        text-decoration: none;
    }

    .det-titulo-bloque {
        margin: 16px 0 18px;
        padding-left: 0;
        border-left: 0;
    }

    .det-titulo {
        font-size: 1.68rem;
        line-height: 1.14;
    }

    .det-subtitulo {
        margin-top: 6px;
        font-size: 0.94rem;
        line-height: 1.5;
    }

    .det-galeria {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        grid-template-rows: 172px 88px;
        gap: 8px;
    }

    .det-galeria-foto:first-child {
        grid-column: 1 / -1;
    }

    .det-galeria-foto {
        border-radius: 11px;
    }

    .det-meta {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 0;
        border: 0;
    }

    .det-meta-item {
        min-width: 0;
        padding: 12px;
        border: 1px solid var(--gris-borde);
        border-radius: 11px;
        background: #fbfcfe;
    }

    .det-meta-item i {
        width: 28px;
        height: 28px;
        display: grid;
        place-items: center;
        border-radius: 8px;
        background: var(--azul-suave);
    }

    .det-descripcion {
        padding: 17px;
        border-radius: 12px;
    }
}

@media (max-width: 420px) {
    .proy-header {
        padding-bottom: 14px;
        border-bottom: 1px solid #eef0f4;
    }

    .proy-card {
        grid-template-columns: 44px minmax(0, 1fr);
        padding: 16px 14px;
    }

    .proy-card-arrow {
        grid-column: 2;
        justify-self: start;
        width: auto;
        height: auto;
        padding: 5px 9px;
        border-radius: 999px;
    }

    .proy-card-arrow::after {
        content: " Ver";
        margin-left: 4px;
        font-size: 0.75rem;
        font-weight: 800;
    }

    .proy-banner-izq {
        flex-direction: column;
        gap: 10px;
    }

    .det-galeria {
        grid-template-rows: 160px 78px;
    }

    .det-meta {
        grid-template-columns: 1fr;
    }
}

/* Visual refresh de la pagina publica */
.btn-hero-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--azul-brillante);
    color: var(--blanco);
    padding: 15px 28px;
    border: 1.5px solid var(--azul-brillante);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 800;
    font-family: var(--fuente-principal);
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
    letter-spacing: 0;
}

.btn-hero-main:hover {
    background: #6aa6dd;
    border-color: #6aa6dd;
    transform: translateY(-2px);
}

@media (min-width: 769px) {
    .hero {
        min-height: 100svh;
        padding-top: 126px;
        padding-bottom: 86px;
    }

    .hero-content {
        max-width: min(900px, 72vw);
    }

    .hero-titulo {
        font-size: clamp(4.4rem, 6.7vw, 5.15rem);
        letter-spacing: 0;
    }

    .hero-subtitulo,
    .hero-descripcion,
    .hero-hvac-bloque {
        max-width: 720px;
    }

    .hero-ctas {
        margin-bottom: 34px;
    }
}

@media (max-width: 768px) {
    .btn-hero-main {
        width: 100%;
    }

    .hero-badge,
    .contacto-card,
    .modal-card,
    .det-foto-overlay,
    .lightbox,
    .nav-links a:hover {
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }

    .hero-badge::before,
    .modal-card,
    .det-wrap,
    .lightbox {
        animation: none;
    }

    .nos-card,
    .benef-card,
    .proy-card,
    .sol-card,
    .apl-card,
    .nos-card-icon,
    .benef-card-icon,
    .proy-card-icon,
    .sol-icon-wrap,
    .apl-card-icon {
        will-change: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}