/* =====================================================
   SÉPTICOS SANTA BÁRBARA - Estilos Personalizados
   =====================================================
   Didier Cuervo | 313 381 5853
   ===================================================== */

/* --- Scroll Snapping (Página Principal) --- */
.snap-container {
    scroll-snap-type: none;
    overflow-y: scroll;
    height: 100vh;
    scroll-behavior: smooth;
    touch-action: pan-y;
    overscroll-behavior-y: contain;
}

@media (min-width: 1024px) {
    .snap-container { scroll-snap-type: y mandatory; }
}

.snap-section {
    scroll-snap-align: start;
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

/* --- Ocultar barra de scroll --- */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* --- Puntos de Navegación Lateral --- */
.nav-dots {
    position: fixed; right: 20px; top: 50%;
    transform: translateY(-50%); z-index: 50;
    display: flex; flex-direction: column; gap: 12px;
}

.dot {
    width: 12px; height: 12px; border-radius: 50%;
    background-color: rgba(2, 132, 199, 0.3);
    cursor: pointer; transition: all 0.3s ease;
}

.dot.active {
    background-color: #0284c7; transform: scale(1.4);
    box-shadow: 0 0 8px rgba(2, 132, 199, 0.6);
}

/* --- Comparador Antes y Después --- */
.comparison-slider { position: relative; overflow: hidden; }
.comparison-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
.img-before { clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%); }

.slider-handle {
    position: absolute; top: 0; bottom: 0; left: 50%;
    width: 4px; background: #ffffff; cursor: ew-resize;
    transform: translateX(-50%); box-shadow: 0 0 10px rgba(0,0,0,0.5); z-index: 10;
}

.slider-button {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 40px; height: 40px; background: #0284c7; color: white;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3); pointer-events: none;
}

/* =====================================================
   ANIMACIONES HERO
   ===================================================== */

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0);    }
}

.hero-animate { animation: heroFadeIn 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94) both; }
.hero-delay-1 { animation-delay: 80ms;  }
.hero-delay-2 { animation-delay: 210ms; }
.hero-delay-3 { animation-delay: 350ms; }
.hero-delay-4 { animation-delay: 480ms; }
.hero-delay-5 { animation-delay: 610ms; }
.hero-card-animate { animation: heroFadeIn 900ms cubic-bezier(0.25, 0.46, 0.45, 0.94) 300ms both; }

/* =====================================================
   PÁGINAS DE SERVICIOS
   ===================================================== */

/* --- Breadcrumb --- */
.breadcrumb-bar {
    background: linear-gradient(to right, #0f172a, #0369a1);
    padding: 10px 0; position: relative; z-index: 30;
    margin-top: 64px;
}
@media (min-width: 768px) { .breadcrumb-bar { margin-top: 80px; } }

/* --- Hero de Servicio --- */
.service-hero {
    position: relative; min-height: 70vh;
    display: flex; align-items: center;
    background-size: cover; background-position: center; overflow: hidden;
}
@media (min-width: 768px) { .service-hero { min-height: 80vh; } }

/* --- Timeline Vertical --- */
.timeline { position: relative; padding-left: 52px; }
.timeline::before {
    content: ''; position: absolute; left: 18px; top: 0; bottom: 0;
    width: 3px; background: linear-gradient(to bottom, #0284c7, #06b6d4); border-radius: 2px;
}

.timeline-step {
    position: relative; margin-bottom: 2rem;
    opacity: 0; transform: translateX(-16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.timeline-step.visible { opacity: 1; transform: translateX(0); }

.service-gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

.service-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.service-gallery-item .overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(15, 23, 42, 0.75) 100%);
}

.service-gallery-item .overlay p {
    margin: 0;
    color: #ffffff;
    font-size: 0.95rem;
    line-height: 1.35;
}

.timeline-dot {
    position: absolute; left: -40px; top: 4px;
    width: 36px; height: 36px;
    background: linear-gradient(135deg, #0284c7, #06b6d4);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 800; font-size: 13px;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.4); border: 3px solid white;
}

/* --- Scroll Reveal --- */
.reveal {
    opacity: 0; transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- FAQ Acordeón --- */
.faq-item { border-bottom: 1px solid #e0f2fe; }

.faq-question {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.25rem 0; cursor: pointer;
    transition: color 0.2s ease; user-select: none;
    font-weight: 600; font-size: 0.95rem; color: #1e293b;
}
.faq-question:hover { color: #0284c7; }

.faq-icon {
    width: 32px; height: 32px; background: #e0f2fe; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #0284c7; transition: all 0.3s ease; flex-shrink: 0;
    font-size: 14px;
}
.faq-item.active .faq-icon { background: #0284c7; color: white; transform: rotate(45deg); }

.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), padding 0.3s ease;
    padding-bottom: 0; color: #475569; font-size: 0.9rem; line-height: 1.7;
}
.faq-item.active .faq-answer { max-height: 400px; padding-bottom: 1.25rem; }

/* --- Botón Flotante WhatsApp --- */
.wa-float {
    position: fixed; bottom: 24px; right: 24px; z-index: 999;
    display: flex; align-items: center; gap: 10px;
    background: #16a34a; color: white; padding: 14px 20px;
    border-radius: 50px; box-shadow: 0 8px 25px rgba(22, 163, 74, 0.4);
    font-weight: 700; font-size: 14px; text-decoration: none;
    transition: all 0.3s ease; animation: waPulse 2.5s ease-in-out infinite;
}
.wa-float:hover { background: #15803d; transform: translateY(-2px) scale(1.03); box-shadow: 0 12px 35px rgba(22, 163, 74, 0.5); }

@keyframes waPulse {
    0%, 100% { box-shadow: 0 8px 25px rgba(22, 163, 74, 0.4); }
    50%       { box-shadow: 0 8px 35px rgba(22, 163, 74, 0.65); }
}

/* --- Modal de Tanques --- */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(15,23,42,0.8);
    z-index: 1000; display: flex; align-items: center; justify-content: center;
    padding: 1rem; opacity: 0; visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(4px);
}
.modal-overlay.open { opacity: 1; visibility: visible; }

.modal-box {
    background: white; border-radius: 1.5rem; width: 100%; max-width: 560px;
    max-height: 90vh; overflow-y: auto;
    transform: scale(0.92) translateY(16px);
    transition: transform 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
    box-shadow: 0 25px 60px rgba(0,0,0,0.3);
}
.modal-overlay.open .modal-box { transform: scale(1) translateY(0); }

/* --- Checklist Beneficios --- */
.benefit-check {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 14px 18px; background: white;
    border-radius: 12px; border: 1px solid #e0f2fe;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.25s ease;
}
.benefit-check:hover { border-color: #0284c7; box-shadow: 0 4px 16px rgba(2,132,199,0.1); }

/* --- Card de Catálogo Tanques --- */
.tank-card {
    background: white; border-radius: 1.5rem; overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08); border: 1px solid #e0f2fe;
    transition: all 0.3s ease; cursor: pointer;
}
.tank-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(2,132,199,0.18); border-color: #0284c7; }

/* Responsive WA float */
@media (max-width: 640px) {
    .wa-float span { display: none; }
    .wa-float { padding: 14px; border-radius: 50%; }
}