:root {
    /* Color Palette - Focus on Construction Professionalism */
    --primary: #27ae60;
    /* Pipeline Green */
    --primary-light: #2ecc71;
    --primary-dark: #1e8449;
    --secondary: #2c3e50;
    /* Trust Blue-Grey */
    /* Color Palette - Premium Dark Mode */
    --primary: #2ECC71;
    /* Pipeline Green */
    --primary-dark: #27ae60;
    --dark: #050505;
    /* Deepest Night */
    --dark-accent: #111111;
    /* Card/Section background */
    --gray: #888888;
    --light: #1a1a1a;
    /* Background for lighter dark areas */
    --white: #ffffff;
    --text-main: #f5f5f5;
    --text-dim: #a0a0a0;

    /* Typography */
    --font-main: 'Montserrat', sans-serif;
    --font-heading: 'Montserrat', sans-serif;

    /* Spacing & Borders */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-fast: all 0.2s ease-in-out;
}

/* Animations & Reveals */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroZoom {
    from {
        transform: scale(1);
    }

    to {
        transform: scale(1.1);
    }
}

@keyframes contentFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1.2s cubic-bezier(0.165, 0.84, 0.44, 1), transform 1.2s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.2s;
}

.reveal-delay-2 {
    transition-delay: 0.4s;
}

.reveal-delay-3 {
    transition-delay: 0.6s;
}


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

body {
    font-family: var(--font-main);
    color: var(--text-dim);
    background-color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--white);
    font-weight: 700;
}

p {
    color: var(--text-dim);
}

a {
    transition: var(--transition-smooth);
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Base Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

/* Premium UI Elements */
.btn-premium {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(46, 204, 113, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* Light Section Utility */
.section-light {
    background-color: var(--white) !important;
}

.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4 {
    color: var(--dark) !important;
}

.section-light p {
    color: #444 !important;
}


.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

/* Navigation System Styles */
.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 0;
    transition: var(--transition-smooth);
}

.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
    animation: heroZoom 20s linear infinite alternate;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(5, 5, 5, 1) 0%, rgba(5, 5, 5, 0.4) 100%);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
}

/* Infinite Carousel System */
.infinite-carousel {
    width: 100%;
    overflow: hidden;
    padding: 2rem 0;
    position: relative;
}

.carousel-track {
    display: flex;
    width: max-content;
    gap: 5rem;
    animation: scrollTrack 30s linear infinite;
    align-items: center;
}

.carousel-track:hover {
    animation-play-state: paused;
}

@keyframes scrollTrack {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* Team Specifics in Carousel */
.team-member-card {
    width: 250px;
    flex-shrink: 0;
    text-align: center;
}

.team-member-card .image-wrapper {
    width: 180px;
    height: 180px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.team-member-card:hover .image-wrapper {
    border-color: var(--primary);
    transform: scale(1.05);
}

/* Associations Specifics in Carousel */
.partner-logo {
    height: 350px !important;
    width: auto !important;
    max-width: none !important;
    filter: none;
    opacity: 1;
    transition: var(--transition-smooth);
}

.partner-logo:hover {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.1);
}

/* Portfolio Specifics */
.category-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(46, 204, 113, 0.1);
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.portfolio-card {
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.portfolio-card img {
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.portfolio-card:hover img {
    transform: scale(1.1);
}

/* Hover Grow Effect */
.hover-grow {
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.hover-grow:hover {
    transform: translateY(-12px);
    background: rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 20px 40px rgba(46, 204, 113, 0.15);
    border-bottom-color: var(--primary) !important;
}

.hover-grow i {
    transition: var(--transition-smooth);
}

.hover-grow:hover i {
    transform: scale(1.2) rotate(5deg);
    color: var(--white) !important;
}


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

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-dim);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

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

/* Contact Grid Layout */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 5rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 2100;
    position: relative;
}

/* Enhanced Mobile Experience */
@media (max-width: 991px) {
    .container {
        padding: 0 2rem;
    }

    .section-padding {
        padding: 4rem 0;
    }

    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 3rem !important;
    }

    .contact-grid {
        grid-template-columns: 1fr !important;
        gap: 3rem !important;
    }

    .contact-grid>div:first-child {
        order: 2;
        /* Info goes second */
    }

    .contact-grid>div:last-child {
        order: 1;
        /* Form goes first */
    }

    .pc-only {
        display: none !important;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--dark-accent);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-smooth);
        z-index: 2000;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
        margin-bottom: 1.2rem;
        color: var(--white);
    }
}

@media (max-width: 768px) {
    .section-title h2 {
        font-size: 1.8rem;
    }

    /* Layout fixes for mobile grids */
    div[style*="grid-template-columns: 1fr 1fr"],
    div[style*="grid-template-columns: 1fr 1.5fr"],
    div[style*="grid-template-columns: repeat(auto-fit, minmax"] {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }

    form div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    /* Center text on mobile where appropriate */
    .mobile-center {
        text-align: center !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
    }

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

    .responsive-box {
        padding: 3rem 1.2rem !important;
    }

    .why-us-grid {
        grid-template-columns: 1fr !important;
        justify-content: center !important;
        align-items: center !important;
    }

    .why-us-grid>div {
        width: 100% !important;
        max-width: 400px;
        margin: 0 auto;
    }

    .pc-only {
        display: none !important;
    }
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    right: 2rem;
    max-width: 500px;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    display: none;
    animation: slideUp 0.5s ease-out;
    border-left: 5px solid var(--primary);
}

@keyframes slideUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.cookie-banner h4 {
    color: var(--dark);
}

.cookie-banner p {
    font-size: 0.9rem;
    color: #444;
    margin-bottom: 1.5rem;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
}

@media (max-width: 768px) {
    .cookie-banner {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }
}

footer a:hover i {
    color: var(--primary) !important;
}