/* ================================================================
   HLC Ingeniería y Construcción SAC — Custom Stylesheet
   Paleta: azul #00417F | dorado #D0B610 | gris #7E8B9A | fondo #F4F6F8
   ================================================================ */

/* ── Variables ─────────────────────────────────────────────────── */
:root {
    --hlc-blue:      #00417F;
    --hlc-blue-dark: #002F5C;
    --hlc-blue-mid:  #005099;
    --hlc-orange:    #D0B610;
    --hlc-orange-dk: #B09B0D;
    --hlc-gray:      #7E8B9A;
    --hlc-light:     #F4F6F8;
    --hlc-white:     #FFFFFF;

    --font-main:     'Barlow', system-ui, -apple-system, sans-serif;
    --transition:    0.25s ease;
    --radius:        6px;
    --shadow-sm:     0 2px 8px rgba(0, 0, 0, .08);
    --shadow-md:     0 6px 24px rgba(0, 0, 0, .12);
    --shadow-orange: 0 8px 28px rgba(208, 182, 16, .28);
}

/* ── Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    font-size: 1rem;
    line-height: 1.7;
    color: #2A3040;
    background-color: var(--hlc-light);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    font-weight: 700;
    line-height: 1.25;
    color: var(--hlc-blue);
}

a { color: var(--hlc-orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--hlc-orange-dk); }

img { max-width: 100%; height: auto; }

/* ── Helper colors ─────────────────────────────────────────────── */
.text-hlc-blue   { color: var(--hlc-blue)   !important; }
.text-hlc-orange { color: var(--hlc-orange) !important; }
.text-hlc-gray   { color: var(--hlc-gray)   !important; }
.bg-hlc-blue     { background-color: var(--hlc-blue)   !important; }
.bg-hlc-orange   { background-color: var(--hlc-orange) !important; }
.bg-hlc-light    { background-color: var(--hlc-light)  !important; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn-hlc {
    background-color: var(--hlc-orange);
    color: #fff;
    border: 2px solid var(--hlc-orange);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .9rem;
    letter-spacing: .03em;
    transition: background-color var(--transition), border-color var(--transition),
                box-shadow var(--transition), transform var(--transition);
}
.btn-hlc:hover,
.btn-hlc:focus-visible {
    background-color: var(--hlc-orange-dk);
    border-color:     var(--hlc-orange-dk);
    color: #fff;
    box-shadow: var(--shadow-orange);
    transform: translateY(-1px);
}
.btn-hlc:active { transform: translateY(0); }

.btn-hlc-outline {
    background-color: transparent;
    color: var(--hlc-orange);
    border: 2px solid var(--hlc-orange);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .9rem;
    transition: background-color var(--transition), color var(--transition),
                box-shadow var(--transition), transform var(--transition);
}
.btn-hlc-outline:hover,
.btn-hlc-outline:focus-visible {
    background-color: var(--hlc-orange);
    color: #fff;
    box-shadow: var(--shadow-orange);
    transform: translateY(-1px);
}

/* Blue variant */
.btn-hlc-blue {
    background-color: var(--hlc-blue);
    color: #fff;
    border: 2px solid var(--hlc-blue);
    border-radius: var(--radius);
    font-weight: 600;
    transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-hlc-blue:hover {
    background-color: var(--hlc-blue-mid);
    color: #fff;
    transform: translateY(-1px);
}

/* ── Section title ─────────────────────────────────────────────── */
.section-title {
    position: relative;
    padding-left: 1.1rem;
    margin-bottom: .5rem;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800;
}
.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: .15em;
    bottom: .15em;
    width: 4px;
    border-radius: 2px;
    background-color: var(--hlc-orange);
}
.section-subtitle {
    color: var(--hlc-gray);
    font-size: 1.05rem;
    font-weight: 400;
    margin-bottom: 2.5rem;
}

/* ── Top Bar ───────────────────────────────────────────────────── */
.topbar-hlc {
    background-color: var(--hlc-blue);
    font-size: .8rem;
}
.topbar-phone {
    color: rgba(255,255,255,.85);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: .02em;
    transition: color var(--transition);
}
.topbar-phone:hover { color: var(--hlc-orange); }
.topbar-social {
    color: rgba(255,255,255,.7);
    font-size: .9rem;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: color var(--transition), background-color var(--transition);
}
.topbar-social:hover { color: #fff; background-color: rgba(255,255,255,.12); }

/* ── Navbar ────────────────────────────────────────────────────── */
.nav-hlc {
    background-color: #fff !important;
    padding-top: .6rem;
    padding-bottom: .6rem;
    box-shadow: 0 2px 12px rgba(0,0,0,.10);
    border-bottom: 2px solid var(--hlc-orange);
    transition: padding var(--transition), box-shadow var(--transition);
}
.nav-hlc.scrolled {
    padding-top: .35rem;
    padding-bottom: .35rem;
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
}

/* Logo */
.hlc-logo-img {
    height: 52px;
    width: auto;
}
@media (max-width: 575.98px) {
    .hlc-logo-img { height: 40px; }
}

/* Nav links */
.nav-hlc .nav-link {
    color: var(--hlc-blue) !important;
    font-size: .82rem;
    font-weight: 600;
    padding: .4rem .6rem !important;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-radius: var(--radius);
    transition: color var(--transition), background-color var(--transition);
}
.nav-hlc .nav-link:hover,
.nav-hlc .nav-link:focus-visible {
    color: var(--hlc-orange) !important;
    background-color: rgba(208,182,16,.08);
}
.nav-hlc .nav-link.active {
    color: var(--hlc-orange) !important;
}

/* Toggler */
.nav-hlc .navbar-toggler {
    border-color: rgba(0,65,127,.3);
}
.nav-hlc .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280%2C65%2C127%2C0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Dropdown */
.dropdown-hlc {
    background-color: #fff;
    border: 1px solid #e5e9ef;
    border-top: 3px solid var(--hlc-orange);
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow-md);
    min-width: 250px;
}
.dropdown-hlc .dropdown-item {
    color: var(--hlc-blue);
    font-size: .82rem;
    font-weight: 500;
    padding: .55rem 1rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    transition: color var(--transition), background-color var(--transition);
}
.dropdown-hlc .dropdown-item:hover,
.dropdown-hlc .dropdown-item.active {
    color: var(--hlc-orange);
    background-color: rgba(208,182,16,.08);
}

/* ── Hero gradient ─────────────────────────────────────────────── */
.hero-gradient {
    background: linear-gradient(135deg, var(--hlc-blue-dark) 0%, var(--hlc-blue-mid) 60%, #1a3a6b 100%);
    position: relative;
    overflow: hidden;
}
.hero-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/img/hero-pattern.svg') center/cover no-repeat;
    opacity: .06;
    pointer-events: none;
}

/* ── Page hero (banner interno) ────────────────────────────────── */
.page-hero {
    position: relative;
    min-height: 240px;
    display: flex;
    align-items: center;
    background-color: var(--hlc-blue);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(7,22,40,.88) 40%, rgba(7,22,40,.5));
}
.page-hero-content,
.page-hero .container {
    position: relative;
    z-index: 2;
}
.page-hero h1 { color: #fff; font-size: clamp(1.6rem, 4vw, 2.8rem); }
.page-hero .breadcrumb-item,
.page-hero .breadcrumb-item a { color: rgba(255,255,255,.65); font-size: .85rem; }
.page-hero .breadcrumb-item.active { color: var(--hlc-orange); }
.page-hero .breadcrumb-divider { color: rgba(255,255,255,.4); }

/* ── Cards de servicio ─────────────────────────────────────────── */
.card-servicio {
    background: #fff;
    border: 1px solid #e5e9ef;
    border-radius: calc(var(--radius) * 1.5);
    padding: 2rem 1.5rem;
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    cursor: default;
}
.card-servicio:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-orange);
    border-color: rgba(208,182,16,.35);
}
.card-servicio .icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: rgba(208,182,16,.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--hlc-orange);
    margin-bottom: 1.2rem;
    transition: background-color var(--transition), transform var(--transition);
}
.card-servicio:hover .icon-wrap {
    background-color: var(--hlc-orange);
    color: #fff;
    transform: scale(1.08);
}
.card-servicio h4 { font-size: 1.05rem; margin-bottom: .5rem; }
.card-servicio p  { font-size: .9rem; color: var(--hlc-gray); margin-bottom: 0; }

/* ── Stat boxes ────────────────────────────────────────────────── */
.stat-box {
    text-align: center;
    padding: 1.8rem 1.2rem;
}
.stat-number {
    display: block;
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--hlc-orange);
    line-height: 1;
    margin-bottom: .3rem;
}
.stat-label {
    font-size: .88rem;
    font-weight: 500;
    color: var(--hlc-gray);
    text-transform: uppercase;
    letter-spacing: .06em;
}

/* ── Client logos ──────────────────────────────────────────────── */
.client-logo {
    filter: grayscale(100%) opacity(50%);
    transition: filter var(--transition), opacity var(--transition);
    max-height: 52px;
    object-fit: contain;
}
.client-logo:hover { filter: grayscale(0%) opacity(100%); }

/* ── Footer ────────────────────────────────────────────────────── */
.footer-hlc {
    background-color: var(--hlc-blue);
    color: rgba(255,255,255,.65);
    margin-top: auto;
}
.footer-heading {
    color: var(--hlc-white);
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .12em;
    margin-bottom: 1rem;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li { margin-bottom: .4rem; }
.footer-links a {
    color: rgba(255,255,255,.6);
    font-size: .88rem;
    transition: color var(--transition), padding-left var(--transition);
    display: flex;
    align-items: center;
    gap: .3rem;
}
.footer-links a i { font-size: .6rem; color: var(--hlc-orange); }
.footer-links a:hover { color: var(--hlc-orange); padding-left: .25rem; }

.footer-contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: .65rem;
    margin-bottom: .9rem;
    font-size: .88rem;
}
.footer-contact-list i { margin-top: .15rem; flex-shrink: 0; }
.footer-contact-list a { color: rgba(255,255,255,.65); }
.footer-contact-list a:hover { color: var(--hlc-orange); }

.footer-divider { border-color: rgba(255,255,255,.1); }

/* Certificaciones */
.cert-badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    background-color: rgba(208,182,16,.15);
    color: var(--hlc-orange);
    border: 1px solid rgba(208,182,16,.35);
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 600;
    padding: .28rem .75rem;
    letter-spacing: .04em;
}

/* Social icons */
.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.65);
    font-size: 1rem;
    transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}
.social-icon:hover { background-color: var(--hlc-orange); color: #fff; border-color: var(--hlc-orange); }

/* ── WhatsApp FAB ──────────────────────────────────────────────── */
.whatsapp-fab {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1050;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: #25D366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 16px rgba(37,211,102,.45);
    transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-fab:hover {
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 6px 22px rgba(37,211,102,.6);
}

/* ── Scroll-reveal (JS driven) ─────────────────────────────────── */
[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .55s ease, transform .55s ease;
}
[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}
[data-reveal="left"]  { transform: translateX(-28px); }
[data-reveal="left"].revealed  { transform: translateX(0); }
[data-reveal="right"] { transform: translateX(28px); }
[data-reveal="right"].revealed { transform: translateX(0); }
[data-reveal="scale"] { transform: scale(.92); }
[data-reveal="scale"].revealed { transform: scale(1); }

/* ── General section spacing ───────────────────────────────────── */
.section-pad { padding-top: 5rem; padding-bottom: 5rem; }
.section-pad-sm { padding-top: 3rem; padding-bottom: 3rem; }

/* ── Project filter tabs ───────────────────────────────────────── */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 2rem;
}
.filter-tabs .filter-btn {
    padding: .4rem 1.1rem;
    border-radius: 20px;
    border: 1.5px solid #d0d6de;
    background: transparent;
    font-size: .85rem;
    font-weight: 500;
    color: var(--hlc-gray);
    cursor: pointer;
    transition: all var(--transition);
}
.filter-tabs .filter-btn:hover,
.filter-tabs .filter-btn.active {
    border-color: var(--hlc-orange);
    background-color: var(--hlc-orange);
    color: #fff;
}

/* ── Divider accent ────────────────────────────────────────────── */
.divider-hlc {
    width: 50px;
    height: 3px;
    background-color: var(--hlc-orange);
    border-radius: 2px;
    margin: .75rem 0 1.5rem;
}
.divider-hlc.center { margin-left: auto; margin-right: auto; }

/* ── Toast notifications ───────────────────────────────────────── */
#toast-container {
    position: fixed;
    bottom: 5rem;
    right: 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.hlc-toast {
    min-width: 240px;
    max-width: 320px;
    background: var(--hlc-blue);
    color: #fff;
    border-left: 4px solid var(--hlc-orange);
    border-radius: var(--radius);
    padding: .8rem 1.1rem;
    font-size: .88rem;
    box-shadow: var(--shadow-md);
    animation: toastIn .3s ease forwards;
}
.hlc-toast.toast-success { border-left-color: #28a745; }
.hlc-toast.toast-error   { border-left-color: #dc3545; }
.hlc-toast.toast-info    { border-left-color: var(--hlc-orange); }
@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .nav-hlc .navbar-collapse {
        background-color: var(--hlc-blue-dark);
        margin-top: .5rem;
        border-radius: var(--radius);
        padding: .75rem 1rem;
        border: 1px solid rgba(255,255,255,.08);
    }
    .nav-hlc .nav-link { padding: .55rem .75rem !important; }
    .nav-hlc .btn-hlc  { margin-top: .5rem; width: 100%; text-align: center; }
    .dropdown-hlc {
        background-color: rgba(255,255,255,.04);
        border: none;
        box-shadow: none;
    }
}

@media (max-width: 767.98px) {
    .section-pad { padding-top: 3.5rem; padding-bottom: 3.5rem; }
    .stat-box    { padding: 1.2rem .8rem; }
    .page-hero   { min-height: 180px; }
}

@media (max-width: 575.98px) {
    .section-title { font-size: 1.5rem; }
    .whatsapp-fab  { width: 50px; height: 50px; font-size: 1.4rem; }
}