/* =================================================================== */
/* ARCHIVO DE ESTILOS PRINCIPAL - VERSIÓN REDISEÑO
/* =================================================================== */

/* --- 1. Definición de Variables y Estilos Globales (Minimalista Minero) --- */
:root {
    --dark-green: #1a1a1a;
    --primary-green: #2d2d2d;
    --mining-gold: #d4af37;
    --mining-gold-dark: #b8962f;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --dark-green-transparent: rgba(26, 26, 26, 0.92);
    --mining-accent: #8b7355;
    --navbar-height: 120px;
    --hero-slide-min-h: 420px;
    --hero-slider-h: clamp(420px, 60vh, 620px);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    background-color: var(--white);
}

/* Scroll to top */
.scroll-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1080;
    width: 48px;
    height: 48px;
    border: 0;
    border-radius: 13px;
    background: var(--mining-gold);
    color: #ffffff;
    display: grid;
    place-items: center;
    box-shadow: 0 10px 26px rgba(0,0,0,0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease, background 180ms ease;
}

.scroll-to-top i {
    font-size: 1.25rem;
    line-height: 1;
}

.scroll-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--mining-gold-dark);
}

.scroll-to-top:focus-visible {
    outline: 3px solid rgba(255,255,255,0.6);
    outline-offset: 3px;
}

/* Botones Minimalistas */
.btn-primary {
    background: linear-gradient(135deg, var(--mining-gold), var(--mining-gold-dark));
    border: none;
    color: var(--dark-green);
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 0.85rem 2rem;
    border-radius: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    font-size: 0.9rem;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212,175,55,0.4);
    background: linear-gradient(135deg, var(--mining-gold-dark), var(--mining-gold));
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-outline-light {
    border: 2px solid var(--mining-gold);
    color: var(--mining-gold);
    background: transparent;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 0.85rem 2rem;
    border-radius: 0;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn-outline-light:hover {
    background: var(--mining-gold);
    color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212,175,55,0.3);
}



/* --- 3. Hero Slider (Minimalista Elegante) --- */
.hero-slider {
    height: var(--hero-slider-h);
    min-height: var(--hero-slide-min-h);
    color: var(--white);
    margin-top: var(--navbar-height, 160px);
    position: relative;
}

.swiper-slide {
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center !important;
    justify-content: center;
    text-align: center;
    box-sizing: border-box;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.7), rgba(26,26,26,0.5));
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(0.65rem, 1.2vw, 1.25rem);
    padding: clamp(0.9rem, 2.2vw, 2rem) 1rem;
    box-sizing: border-box;
    min-height: 0;
    animation: heroFadeIn 1.2s ease-out;
}

.hero-content h1 {
    font-weight: 300 !important;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    letter-spacing: 8px;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
    max-width: min(100%, 64rem);
    overflow-wrap: anywhere;
}

.hero-content h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: var(--mining-gold);
    animation: lineExpand 1s ease-out 0.5s forwards;
    width: 0;
}

.hero-green h1 {
    color: var(--white) !important;
}

.hero-green h1 strong {
    color: var(--mining-gold);
    font-weight: 700;
}

.hero-slider .swiper-button-prev,
.hero-slider .swiper-button-next {
    color: var(--mining-gold);
    background: rgba(26,26,26,0.7);
    width: 50px;
    height: 50px;
    border-radius: 0;
    transition: all 0.3s ease;
}

.hero-slider .swiper-button-prev:hover,
.hero-slider .swiper-button-next:hover {
    background: var(--mining-gold);
    color: var(--dark-green);
}

.hero-slider .swiper-button-prev::after,
.hero-slider .swiper-button-next::after {
    font-size: 20px;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes lineExpand {
    to { width: 100px; }
}

/* Slide especial de aniversario */
.anniversary-slide {
    background-size: cover !important;
    background-position: center !important;
}

.anniversary-slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        rgba(26,26,26,0.85) 0%,
        rgba(45,45,45,0.75) 50%,
        rgba(212,175,55,0.25) 100%
    );
    z-index: 1;
}

.anniversary-hero-content {
    z-index: 2;
    position: relative;
    text-align: center;
    animation: anniversaryFadeInUp 1.5s ease-out;
}

.anniversary-badge-large {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--mining-gold), var(--mining-gold-dark));
    border-radius: 50%;
    width: clamp(120px, 18vh, 200px);
    height: clamp(120px, 18vh, 200px);
    padding: clamp(1rem, 2vh, 2rem);
    justify-content: center;
    box-shadow: 0 15px 50px rgba(212,175,55,0.4);
    position: relative;
    animation: anniversaryPulseGlow 3s ease-in-out infinite;
}

.anniversary-badge-large::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--mining-gold);
    border-radius: 50%;
    opacity: 0.5;
    animation: anniversaryRipple 3s ease-out infinite;
}

.anni-icon-large {
    font-size: 2.5rem;
    color: var(--dark-green);
    animation: anniversarySparkle 2s ease-in-out infinite;
}

.anni-number-huge {
    font-size: clamp(2.5rem, 6vh, 4.5rem);
    font-weight: 900;
    color: var(--dark-green);
    line-height: 1;
    letter-spacing: -2px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.anni-label-large {
    font-size: clamp(1rem, 2.3vh, 1.5rem);
    font-weight: 700;
    color: var(--dark-green);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.anniversary-hero-content h1 {
    font-weight: 300;
    letter-spacing: clamp(1px, 0.7vw, 4px);
    color: var(--white);
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    margin: 0;
    font-size: clamp(1.4rem, 3.2vw, 3rem) !important;
}

.anniversary-divider-hero {
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg,
        transparent,
        var(--mining-gold),
        transparent
    );
    margin: 0 auto;
    animation: anniversaryGlow 2s ease-in-out infinite;
}

.anniversary-message {
    font-size: clamp(0.95rem, 2.1vw, 1.8rem);
    font-weight: 600;
    color: var(--white);
    letter-spacing: clamp(1px, 0.6vw, 3px);
    text-transform: uppercase;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    margin: 0;
    max-width: min(100%, 64rem);
    overflow-wrap: anywhere;
}

.anniversary-period-large {
    font-size: clamp(1.2rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--mining-gold);
    letter-spacing: clamp(2px, 1vw, 5px);
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    margin: 0;
    max-width: min(100%, 64rem);
    overflow-wrap: anywhere;
}

@keyframes anniversaryFadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes anniversaryPulseGlow {
    0%, 100% {
        box-shadow: 0 15px 50px rgba(212,175,55,0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 20px 70px rgba(212,175,55,0.7);
        transform: scale(1.05);
    }
}

@keyframes anniversaryRipple {
    0% {
        opacity: 0.5;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.3);
    }
}

@keyframes anniversaryGlow {
    0%, 100% {
        opacity: 0.8;
        box-shadow: 0 0 20px rgba(212,175,55,0.5);
    }
    50% {
        opacity: 1;
        box-shadow: 0 0 40px rgba(212,175,55,0.8);
    }
}

/* Responsive para slide de aniversario */
@media (max-width: 991.98px) {
    .anniversary-badge-large {
        width: 160px;
        height: 160px;
        padding: 1.5rem;
    }

    .anni-number-huge {
        font-size: 3.5rem;
    }

    .anni-label-large {
        font-size: 1.2rem;
    }

    .anniversary-hero-content h1 {
        font-size: 2rem !important;
        letter-spacing: 2px;
    }

    .anniversary-message {
        font-size: 1.3rem;
        letter-spacing: 2px;
    }

    .anniversary-period-large {
        font-size: 1.8rem;
        letter-spacing: 3px;
    }
}

@media (max-width: 768px) {
    .anniversary-badge-large {
        width: 140px;
        height: 140px;
        padding: 1rem;
    }

    .anni-number-huge {
        font-size: 3rem;
    }

    .anni-label-large {
        font-size: 1rem;
    }

    .anni-icon-large {
        font-size: 2rem;
    }

    .anniversary-hero-content h1 {
        font-size: 1.5rem !important;
        letter-spacing: 1px;
    }

    .anniversary-message {
        font-size: 1.1rem;
        letter-spacing: 1px;
    }

    .anniversary-period-large {
        font-size: 1.5rem;
        letter-spacing: 2px;
    }

    .anniversary-divider-hero {
        width: 100px;
    }
}

@media (max-width: 575.98px) {
    .anniversary-badge-large {
        width: 120px;
        height: 120px;
    }

    .anni-number-huge {
        font-size: 2.5rem;
    }

    .anniversary-hero-content h1 {
        font-size: 1.2rem !important;
    }

    .anniversary-message {
        font-size: 0.95rem;
    }

    .anniversary-period-large {
        font-size: 1.3rem;
    }
}

/* --- 4. Sección Compañía / Misión y Visión (Minimalista) --- */
#about {
    background-color: var(--light-gray);
    padding: 5rem 0;
}

.company-info-box-light {
    background-color: var(--dark-green);
    color: var(--white);
    padding: 3rem;
    height: 100%;
    border-radius: 0;
    border-left: 4px solid var(--mining-gold);
    position: relative;
    overflow: hidden;
}

.company-info-box-light::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(212,175,55,0.1), transparent);
    pointer-events: none;
}

.company-info-box-light h2 {
    color: var(--mining-gold);
    font-weight: 300;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.company-info-box-light .text-muted {
    color: rgba(255,255,255,0.85) !important;
    line-height: 1.8;
    font-size: 1.05rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(212,175,55,0.2);
    transition: all 0.3s ease;
}

.info-item:last-child {
    border-bottom: none;
}

.info-item:hover {
    padding-left: 1rem;
    background: rgba(212,175,55,0.05);
}

.icon-circle-light {
    min-width: 70px;
    height: 70px;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-right: 20px;
    background: linear-gradient(135deg, var(--mining-gold), var(--mining-gold-dark));
    color: var(--dark-green);
    flex-shrink: 0;
}

.mission-vision-box-light h3 {
    color: var(--dark-green);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1.1rem;
}

/* --- 5. Sección Parallax (Seguridad - Minimalista) --- */
.parallax-section {
    position: relative;
    padding: 6rem 0;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    color: var(--white);
    border-top: 3px solid var(--mining-gold);
    border-bottom: 3px solid var(--mining-gold);
}

.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26,26,26,0.9), rgba(45,45,45,0.85));
}

.parallax-content {
    position: relative;
    z-index: 2;
}

.parallax-content h2 {
    font-weight: 300;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.parallax-content .lead {
    font-size: 1.1rem;
    line-height: 1.8;
    font-weight: 300;
}

.security-logo {
    max-height: 90px;
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}

.security-logo:hover {
    transform: scale(1.1);
}

/* --- 6. Sección Contadores (Minimalista Elegante) --- */
#counters {
    background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
    padding: 4rem 0;
}

.index-project-stats {
    background: rgba(255,255,255,0.05) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212,175,55,0.3) !important;
    border-radius: 0 !important;
}

.counter-box i {
    font-size: 2.5rem;
    color: var(--mining-gold);
}

.counter-box h3 {
    font-size: 2.8rem;
    font-weight: 300;
    color: var(--white);
    letter-spacing: 2px;
}

.counter-box p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- 7. Footer (Minimalista Elegante) --- */
.main-footer {
    position: relative;
    padding: 4rem 0 2rem;
    color: var(--white);
    background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
    border-top: 3px solid var(--mining-gold);
}

.footer-overlay {
    display: none;
}

.footer-content {
    position: relative;
    z-index: 2;
}

.footer-logo {
    max-width: 180px;
    transition: transform 0.3s ease;
}

.footer-logo:hover {
    transform: scale(1.05);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255,255,255,0.03);
    border-left: 2px solid transparent;
    transition: all 0.3s ease;
}

.footer-contact-item:hover {
    border-left-color: var(--mining-gold);
    background: rgba(255,255,255,0.06);
    padding-left: 1.5rem;
}

.footer-contact-item i {
    font-size: 1.3rem;
    margin-right: 15px;
    margin-top: 5px;
    color: var(--mining-gold);
    flex-shrink: 0;
}

.footer-contact-item span {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
}

.footer-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--mining-gold);
    padding-left: 5px;
}

/* Animación de 30 Aniversario en Footer */
.footer-anniversary-badge {
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem 3rem;
    background: linear-gradient(135deg, var(--mining-gold), var(--mining-gold-dark));
    border-radius: 0;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.footer-anniversary-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: footerShine 3s linear infinite;
}

.footer-anniversary-badge .anni-icon {
    font-size: 3rem;
    color: var(--dark-green);
}

.footer-anniversary-badge .anni-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-anniversary-badge .anni-title {
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--dark-green);
    line-height: 1;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.footer-anniversary-badge .anni-years {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark-green);
    line-height: 1.2;
    letter-spacing: 3px;
}

.footer-anniversary-badge .anni-message {
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(26,26,26,0.85);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

@keyframes footerShine {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* --- 8. Barra de Copyright (Minimalista) --- */
.copyright-bar {
    background-color: var(--dark-green);
    color: rgba(255,255,255,0.7);
    padding: 1.5rem 0;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    border-top: 1px solid rgba(212,175,55,0.2);
}

/* --- 9. Servicios (Minimalista Grid) --- */
.services-section {
    background-color: var(--white);
    padding: 5rem 0;
}

.services-section .display-6 {
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--dark-green);
    position: relative;
    padding-bottom: 1.5rem;
}

.services-section .display-6::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--mining-gold);
}

.services-grid {
    position: relative;
}

.service-column {
    padding: 2rem 1.5rem;
    position: relative;
    border: none;
}

@media (max-width: 991px) {
    .service-column {
        padding: 1.5rem 1rem;
    }
}

@media (min-width: 992px) {
    .service-column {
        border-right: 1px solid rgba(0,0,0,0.08);
    }
    .service-column:nth-child(3n) {
        border-right: none;
    }
}

.service-item-new {
    background: var(--white);
    padding: 2rem;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.service-item-new::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(180deg, transparent, rgba(212,175,55,0.05));
    transition: height 0.4s ease;
}

.service-item-new:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--mining-gold);
}

.service-item-new:hover::before {
    height: 100%;
}

.service-icon-circle {
    width: 110px;
    height: 110px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(212,175,55,0.1), rgba(212,175,55,0.05));
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    transition: all 0.4s ease;
    cursor: pointer;
    border: 2px solid rgba(212,175,55,0.2);
}

.service-icon-circle:hover {
    transform: scale(1.1) rotate(5deg);
    border-color: var(--mining-gold);
}

.service-icon-circle i {
    font-size: 2.8rem;
    color: var(--white);
    -webkit-text-stroke: 2px var(--white);
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

.service-icon-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    display: block;
    margin: 0;
}

.service-title {
    color: var(--dark-green);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
    letter-spacing: 2px;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

.service-separator {
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--mining-gold), var(--mining-gold-dark));
    margin: 0 auto 1rem;
}

.service-link {
    color: var(--mining-gold);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    align-self: center;
    margin-top: auto;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.service-link::after {
    content: '→';
    transition: transform 0.3s ease;
}

.service-link:hover {
    color: var(--dark-green);
    gap: 0.75rem;
}

.service-link:hover::after {
    transform: translateX(5px);
}

.service-item {
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    height: 100%;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon-wrapper i {
    font-size: 2.5rem;
    color: var(--white);
}

.service-item h5 {
    color: var(--dark-green);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.service-item a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.service-item a:hover {
    color: var(--dark-green);
}

/* --- 10. Página de Responsabilidad Social --- */
.page-header {
    background: linear-gradient(135deg, var(--dark-green), var(--primary-green));
    padding: 8rem 0 4rem;
    margin-bottom: 0;
}

.recognition-section {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    border-left: 5px solid #28a745;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.recognition-section .alert-heading {
    color: #155724;
    font-weight: 700;
}

.recognition-section hr {
    border-top: 2px solid #28a745;
}

.gallery-item {
    overflow: hidden;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    transition: transform 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.decalogo-section {
    padding: 3rem 0;
}

.decalogo-section .card {
    border: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.decalogo-section .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.footer-dark {
    background-color: var(--dark-green);
    color: var(--white);
}

.footer-dark a {
    color: var(--white);
    font-size: 1.5rem;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.footer-dark a:hover {
    color: var(--primary-green);
}

/* --- 11. Estilos para página de Obras --- */
.project-stats .stat-item h2 {
    font-size: 3rem;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.project-stats .stat-item p {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.region-filter .region-btn {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 12px 30px;
    margin: 0 8px;
    border-radius: 30px;
    transition: all 0.3s ease;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.region-filter .region-btn:hover, 
.region-filter .region-btn.active {
    background: var(--dark-green);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.project-card .card-header {
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green)) !important;
    border: none;
    padding: 1.2rem;
}

.project-card .card-header h5 {
    font-weight: 700;
    letter-spacing: 0.5px;
}

.project-card .card-body {
    padding: 1.5rem;
}

.project-card .card-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #555;
}

.video-modal .modal-content {
    border: none;
    border-radius: 15px;
    overflow: hidden;
}

.video-modal .modal-header {
    background: var(--dark-green);
    color: white;
    border: none;
    padding: 1.2rem;
}

.video-container {
    position: relative;
    width: 100%;
    height: 450px;
    background: #000;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Animación de 30 Aniversario en Página Principal */
.anniversary-hero-banner {
    position: absolute;
    top: clamp(12%, 18vh, 20%);
    right: clamp(0.75rem, 2vw, 2.5rem);
    z-index: 10;
    background: linear-gradient(135deg, var(--mining-gold), var(--mining-gold-dark));
    padding: clamp(0.9rem, 2.2vw, 1.5rem) clamp(1rem, 2.6vw, 1.75rem);
    border-left: 3px solid var(--dark-green);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    animation: anniversarySlideIn 1.5s ease-out, anniversaryFloat 6s ease-in-out 1.5s infinite;
    max-width: min(280px, 42vw);
    box-sizing: border-box;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

.anniversary-hero-banner .anni-title {
    font-size: clamp(1.05rem, 1.8vw, 1.4rem);
    font-weight: 900;
    color: var(--dark-green);
    line-height: 1.2;
    display: block;
    letter-spacing: clamp(1px, 0.4vw, 2px);
    text-transform: uppercase;
}

.anniversary-hero-banner .anni-period {
    font-size: clamp(1.2rem, 2.2vw, 1.7rem);
    font-weight: 800;
    color: var(--dark-green);
    display: block;
    letter-spacing: clamp(1px, 0.6vw, 3px);
    margin: 0.25rem 0 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.anniversary-hero-banner .anni-subtext {
    font-size: clamp(0.75rem, 1vw, 0.9rem);
    color: rgba(26,26,26,0.8);
    margin-top: 0.25rem;
    display: block;
    font-weight: 500;
    letter-spacing: 0.8px;
}

.anniversary-hero-banner::before {
    content: '✦';
    position: absolute;
    top: -14px;
    right: 14px;
    font-size: clamp(1.25rem, 2vw, 2rem);
    color: var(--dark-green);
    animation: anniversarySparkle 2s ease-in-out infinite;
}

/* When the floating anniversary banner is present, keep hero text from sitting under it */
@media (min-width: 992px) {
    .anniversary-hero-banner + .hero-content {
        padding-right: min(18rem, 28vw);
    }
}

/* On mobile/tablet the floating banner crowds the slide; hide it and let the hero text breathe */
@media (max-width: 991.98px) {
    .anniversary-hero-banner {
        display: none;
    }
}

@keyframes anniversarySlideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes anniversaryFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes anniversarySparkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.3) rotate(180deg);
    }
}

/* Línea decorativa de 30 aniversario en la página */
.anniversary-divider {
    position: relative;
    height: 6px;
    background: linear-gradient(90deg,
        transparent,
        var(--mining-gold) 20%,
        var(--mining-gold-dark) 50%,
        var(--mining-gold) 80%,
        transparent
    );
    margin: 3rem 0;
    overflow: hidden;
}

.anniversary-divider::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: anniversaryShimmer 3s linear infinite;
}

@keyframes anniversaryShimmer {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* Estilos adicionales para secciones */
section {
    position: relative;
}

.display-3, .display-4, .display-5, .display-6 {
    font-weight: 300;
    letter-spacing: 3px;
}

/* Responsive para móviles */
@media (max-width: 1199.98px) {
    :root { --navbar-height: 120px; }
}

@media (max-width: 991.98px) {
    :root { --navbar-height: 100px; }
    :root { --hero-slide-min-h: 380px; }
    :root { --hero-slider-h: clamp(380px, 50vh, 520px); }
    .hero-slider {
        min-height: var(--hero-slide-min-h);
    }

    .hero-content h1 {
        font-size: 2rem !important;
        letter-spacing: 3px;
    }
}

@media (max-width: 768px) {
    :root { --navbar-height: 90px; }
    :root { --hero-slide-min-h: 340px; }
    :root { --hero-slider-h: clamp(340px, 45vh, 480px); }
    .hero-slider {
        min-height: var(--hero-slide-min-h);
    }

    .hero-content h1 {
        font-size: 1.75rem !important;
        letter-spacing: 2px;
    }

    .project-stats .stat-item h2 {
        font-size: 2rem;
    }

    .region-filter .region-btn {
        padding: 10px 20px;
        margin: 5px;
        font-size: 0.9rem;
    }

    .video-container {
        height: 250px;
    }

    #map {
        height: 400px;
    }

    .anniversary-hero-banner {
        top: auto;
        bottom: 1rem;
        right: 1rem;
        padding: 0.9rem 1rem;
        max-width: min(18rem, calc(100% - 2rem));
    }

    .anniversary-hero-banner .anni-title {
        font-size: 1rem;
    }

    .anniversary-hero-banner .anni-period {
        font-size: 1.3rem;
        letter-spacing: 1.5px;
    }

    .anniversary-hero-banner .anni-subtext {
        font-size: 0.72rem;
    }

    .footer-anniversary-badge {
        padding: 1.25rem 1.75rem;
        gap: 1rem;
    }

    .footer-anniversary-badge .anni-icon {
        font-size: 2rem;
    }

    .footer-anniversary-badge .anni-title {
        font-size: 1rem;
    }

    .footer-anniversary-badge .anni-years {
        font-size: 1.4rem;
    }

    .footer-anniversary-badge .anni-message {
        font-size: 0.7rem;
    }

    .btn-primary, .btn-outline-light {
        padding: 0.75rem 1.5rem;
        font-size: 0.8rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 575.98px) {
    :root { --navbar-height: 80px; }
    :root { --hero-slide-min-h: 300px; }
    :root { --hero-slider-h: clamp(300px, 40vh, 420px); }
    .hero-slider {
        min-height: var(--hero-slide-min-h);
    }

    .anniversary-hero-banner {
        bottom: 0.75rem;
        right: 0.75rem;
        padding: 0.75rem 0.85rem;
        max-width: min(15rem, calc(100% - 1.5rem));
    }

    .anniversary-hero-banner::before {
        display: none;
    }

    .hero-content h1 {
        font-size: 1.5rem !important;
        letter-spacing: 1px;
    }

    .btn-primary, .btn-outline-light {
        padding: 0.65rem 1.25rem;
        font-size: 0.75rem;
    }
}

/* Very short viewports: reduce vertical padding to avoid clipping */
@media (max-height: 700px) {
    .hero-content {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }
}