/* ==========================================================================
   SV Solución Vertical - Custom Design System & CSS Stylesheet
   ========================================================================== */

/* 1. Design Tokens (CSS Custom Properties) */
:root {
    /* Color Palette */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-text-primary: #000000;
    --color-text-secondary: #212529;
    --color-text-muted: #6c757d;
    --color-border-light: rgba(0, 0, 0, 0.08);
    --color-border-dark: rgba(255, 255, 255, 0.15);

    /* Premium Brand Accents (Safety & Professional Cyan/Aqua) */
    --color-accent: #00FFFF;
    --color-accent-rgb: 0, 255, 255;
    --color-accent-hover: #00cccc;

    /* White Background Brand Accent (Cobalt Blue for contrast) */
    --color-accent-light: #0047AB;
    --color-accent-light-rgb: 0, 71, 171;
    --color-accent-light-hover: #003380;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Montserrat', sans-serif;

    /* Transitions & Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.15s ease-in-out;
}

/* 2. Global Resets & HTML Setup */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    /* Offset for the sticky navbar */
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6,
.display-1,
.display-3,
.display-5 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Accessibility Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--color-text-primary) !important;
    outline-offset: 4px;
}

/* 3. Helper Utilities & Layout Extensions */
.py-6 {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.tracking-wider {
    letter-spacing: 0.08em;
}

.tracking-widest {
    letter-spacing: 0.15em;
}

.text-accent {
    color: var(--color-accent) !important;
}

.bg-accent {
    background-color: var(--color-accent) !important;
}

.icon-box-accent {
    background-color: rgba(var(--color-accent-rgb), 0.08);
    color: var(--color-accent);
    padding: 0.75rem;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    border: 1px solid rgba(var(--color-accent-rgb), 0.15);
}

.icon-box-accent:hover {
    background-color: var(--color-accent);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(var(--color-accent-rgb), 0.25);
}

.text-accent-light {
    color: var(--color-accent-light) !important;
}

.bg-accent-light {
    background-color: var(--color-accent-light) !important;
}

.icon-box-accent-light {
    background-color: rgba(var(--color-accent-light-rgb), 0.08);
    color: var(--color-accent-light);
    padding: 0.75rem;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    border: 1px solid rgba(var(--color-accent-light-rgb), 0.15);
}

.icon-box-accent-light:hover {
    background-color: var(--color-accent-light);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(var(--color-accent-light-rgb), 0.25);
}

.btn-accent-light {
    background-color: var(--color-accent-light);
    color: #ffffff;
    border: 1px solid var(--color-accent-light);
    border-radius: 0;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    transition: var(--transition-smooth);
}

.btn-accent-light:hover {
    background-color: var(--color-accent-light-hover);
    color: #ffffff;
    border-color: var(--color-accent-light-hover);
    box-shadow: 0 0.5rem 1.5rem rgba(var(--color-accent-light-rgb), 0.35);
}


/* 4. Navigation (Header) */
.navbar {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand span {
    font-family: var(--font-display);
}

.navbar-nav .nav-link {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
    opacity: 0.75;
    transition: var(--transition-fast);
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--bs-navbar-nav-link-padding-x, 0.5rem);
    right: var(--bs-navbar-nav-link-padding-x, 0.5rem);
    height: 2px;
    background-color: #ffffff;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    opacity: 1 !important;
}

.navbar-nav .nav-link.active::after,
.navbar-nav .nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* 5. Hero Section */
.hero-section {
    min-height: 80vh;
}

.min-vh-75 {
    min-height: 75vh;
}

/* Fallback/Background for the Hero Section */
.hero-bg {
    background-color: #121212;
    background-image:
        radial-gradient(at 0% 0%, rgba(33, 37, 41, 0.4) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 0, 0, 0.6) 0px, transparent 50%),
        url('images/fondo_cabecera_bn.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-placeholder-image {
    background: transparent;
}

.hero-overlay {
    z-index: 1;
}

/* Flashing Scroll Button Animation */
@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(8px);
    }
}

.animate-bounce {
    animation: bounce 2s infinite;
}

.bottom-4 {
    bottom: 2rem;
}

.hover-opacity-100:hover {
    opacity: 1 !important;
}

/* 6. General Buttons and Elements */
.btn-black {
    background-color: #000000;
    color: #ffffff;
    border: 1px solid #000000;
    border-radius: 0;
    font-family: var(--font-display);
    transition: var(--transition-smooth);
}

.btn-black:hover {
    background-color: var(--color-accent);
    color: #000000;
    border-color: var(--color-accent);
    box-shadow: 0 0.5rem 1rem rgba(var(--color-accent-rgb), 0.2);
}

.btn-light {
    border-radius: 0;
    font-family: var(--font-display);
}

.btn-outline-light {
    border-radius: 0;
    font-family: var(--font-display);
    border-width: 2px;
}

.btn-accent {
    background-color: var(--color-accent);
    color: #000000;
    border: 1px solid var(--color-accent);
    border-radius: 0;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    transition: var(--transition-smooth);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    color: #000000;
    border-color: var(--color-accent-hover);
    box-shadow: 0 0.5rem 1.5rem rgba(var(--color-accent-rgb), 0.35);
}

.btn-outline-accent {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: 0;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    transition: var(--transition-smooth);
}

.btn-outline-accent:hover {
    background-color: var(--color-accent);
    color: #000000;
    border-color: var(--color-accent);
}

/* 7. Nuestros Trabajos (Cards & Visual Grid) */
.transition-hover {
    transition: var(--transition-smooth);
    border: 1px solid var(--color-border-light) !important;
}

.transition-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.05) !important;
    border-color: rgba(0, 0, 0, 0.15) !important;
}

.card-img-overlay {
    transition: var(--transition-smooth);
}

.card:hover .card-img-overlay {
    opacity: 1 !important;
}

.card-img-wrapper .bg-dark,
.card-img-wrapper .service-bg {
    transition: var(--transition-smooth);
}

.card-img-wrapper .bg-dark {
    background-color: #1a1c1e !important;
}

.card-img-wrapper .service-bg {
    background-size: cover;
    background-position: center;
    position: relative;
}

.card-img-wrapper .service-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 0;
    transition: var(--transition-smooth);
}

.card-img-wrapper .service-bg * {
    position: relative;
    z-index: 1;
}

.card:hover .card-img-wrapper .bg-dark,
.card:hover .card-img-wrapper .service-bg {
    transform: scale(1.05);
}

.card:hover .card-img-wrapper .service-bg::before {
    background-color: rgba(0, 0, 0, 0.5);
}


/* 8. Contacto / Formulario Custom Stylings */
.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label {
    color: var(--color-text-primary);
    transform: scale(0.85) translateY(-0.75rem);
    opacity: 0.8;
}

.form-control:focus {
    box-shadow: none;
    border-color: var(--color-text-primary) !important;
}

.form-control::placeholder {
    color: transparent;
}

.map-container iframe {
    filter: grayscale(1) contrast(1.1) invert(0);
    transition: var(--transition-smooth);
}

.map-container:hover iframe {
    filter: grayscale(0) contrast(1) invert(0);
}

/* 9. Transitions */
.transition-all {
    transition: var(--transition-smooth);
}

/* 10. Responsive Tweaks */
@media (max-width: 991.98px) {
    .py-6 {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    .display-3 {
        font-size: 2.5rem;
    }

    .display-5 {
        font-size: 2rem;
    }

    .hero-section {
        min-height: auto;
    }

    .navbar-collapse {
        background-color: #000000;
        padding: 1rem;
        border-radius: 4px;
        border: 1px solid var(--color-border-dark);
    }
}

/* 11. Dropdown Language Switcher Hover Styles */
.dropdown-menu .dropdown-item {
    transition: var(--transition-fast);
}

.dropdown-menu .dropdown-item:hover {
    background-color: var(--color-accent) !important;
    color: #ffffff !important;
}

/* 12. Helper Utilities for Portfolio */
.cursor-pointer {
    cursor: pointer;
}

.hover-accent {
    transition: var(--transition-fast);
}

.hover-accent:hover {
    color: var(--color-accent) !important;
}

.hover-accent-light {
    transition: var(--transition-fast);
}

.hover-accent-light:hover {
    color: var(--color-accent-light) !important;
}