:root {
    --bg-main: #f8f9fa;
    --text-main: #1A1A1A;
    --text-muted: #6c757d;
    
    /* Patriotic Mexican Theme Colors */
    --mex-green: #006847;
    --mex-red: #CE1126;
    --mex-white: #FFFFFF;
    
    /* Industrial Colors */
    --industrial-steel: #34495e;
    --industrial-dark: #2c3e50;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Typography Highlights */
.highlight, .highlight-green {
    color: var(--mex-green);
}
.highlight-red {
    color: var(--mex-red);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--industrial-dark);
}

.logo-accent {
    color: var(--mex-red);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--industrial-dark);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 0;
    left: 0;
    background-color: var(--mex-green);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--mex-green);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--industrial-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Dark industrial overlay with dark green tint */
    background: linear-gradient(135deg, rgba(44,62,80,0.9) 0%, rgba(0,104,71,0.85) 100%), url('https://images.unsplash.com/photo-1565439390214-c1483dc0adeb?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--mex-white);
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    animation: fadeUp 1s ease-out;
}

.hero-title .highlight {
    color: #fff;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
    position: relative;
    display: inline-block;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 6px;
    background-color: var(--mex-red);
    z-index: -1;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeUp 1s ease-out 0.2s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 500;
    border-radius: 4px;
    text-transform: uppercase;
    font-family: 'Oswald', sans-serif;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--mex-green);
    color: var(--mex-white);
    border: 2px solid var(--mex-green);
    animation: fadeUp 1s ease-out 0.4s both;
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--mex-white);
    border-color: var(--mex-white);
    box-shadow: 0 0 20px rgba(0, 104, 71, 0.4);
}

/* Mission Vision Grid */
.mission-vision {
    padding: 6rem 0;
    background-color: var(--mex-white);
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.card {
    background: #fff;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.mission-card {
    border-bottom-color: var(--mex-green);
}

.vision-card {
    border-bottom-color: var(--mex-red);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.card-icon.green { color: var(--mex-green); }
.card-icon.red { color: var(--mex-red); }

.card h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--industrial-dark);
}

.card p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ISO Section */
.iso-certification {
    padding: 6rem 0;
    background-color: var(--bg-main);
}

.iso-content {
    background: #fff;
    padding: 4rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.iso-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.iso-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.iso-subtext {
    font-weight: 500;
    color: var(--industrial-steel);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: rgba(0, 104, 71, 0.05);
    border-left: 4px solid var(--mex-green);
    border-radius: 4px;
}

.iso-subtext i {
    color: var(--mex-green);
}

.progress-wrapper {
    width: 100%;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    font-weight: 600;
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
}

.progress-title {
    color: var(--industrial-dark);
}

.progress-percentage {
    color: var(--mex-green);
}

.progress-bar-container {
    width: 100%;
    height: 24px;
    background-color: #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--mex-green), #00a470);
    width: 0%;
    border-radius: 12px;
    position: relative;
    transition: width 2.5s cubic-bezier(0.1, 0.7, 0.1, 1);
}

.progress-bar-fill::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(
        -45deg, 
        rgba(255, 255, 255, 0.2) 25%, 
        transparent 25%, 
        transparent 50%, 
        rgba(255, 255, 255, 0.2) 50%, 
        rgba(255, 255, 255, 0.2) 75%, 
        transparent 75%, 
        transparent
    );
    z-index: 1;
    background-size: 30px 30px;
    animation: moveStripes 2s linear infinite;
    border-radius: 12px;
}

/* Gallery Section */
.gallery {
    padding: 6rem 0;
    background-color: var(--mex-white);
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-desc {
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.loader-container {
    padding: 3rem;
    color: var(--text-muted);
}

.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--mex-red);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease-in-out;
}

.gallery-grid.visible {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 4/3;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    background-color: #eaeaea;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

.gallery-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* Footer */
.footer {
    background-color: var(--industrial-dark);
    color: var(--mex-white);
    padding: 5rem 0 1.5rem 0;
    border-top: 5px solid var(--mex-green);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-info, .footer-contact {
    flex: 1;
    min-width: 250px;
}

.footer-info h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--mex-white);
}

.footer-info p {
    color: #adb5bd;
    font-size: 1.1rem;
}

.footer-info .footer-desc {
    margin-top: 1rem;
    color: var(--mex-red);
    font-weight: 500;
}

.footer-contact h4 {
    color: var(--mex-white);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-contact p {
    color: #adb5bd;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--mex-green);
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #6c757d;
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes moveStripes {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 30px 0;
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 900px) {
    .values-grid, .iso-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .iso-content {
        padding: 3rem 2rem;
    }
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none; 
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .card {
        padding: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
}