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

html {
    height: 100%;
    /* Remove: overflow-y: scroll; */
    /* Always show vertical scrollbar */
}

body {
    height: 100%;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    line-height: 1.6;
    color: var(--card-text);
    background-color: var(--body-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Restrict horizontal overflow globally */
html, body {
    overflow-x: hidden;
}

/* container padding to give breathing room */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--gutter);
    background-color: transparent;
}

/* page containers */
.page-container {
    display: none;
    padding: 0;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 260ms ease, transform 260ms ease;
}

.page-container.active {
    display: block;
    opacity: 1;
    transform: none;
}

/* Header */
header {
    background: var(--footer-bg);
    /* Use footer-bg which is now blue-based */
    box-shadow: none;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 4px solid var(--accent-red);
}

/* align nav to bottom so tabs visually connect with content */
header .container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

/* logo */
.logo {
    display: block;
    text-decoration: none;
    transition: transform 180ms ease;
}

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

.logo img {
    height: 100px;
    width: auto;
    display: block;
}

/* Navigation tabs */
.main-nav {
    display: flex;
    gap: 0.375rem;
    align-items: flex-end;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 600;
    padding: 0.6rem 1.15rem;
    border-radius: var(--radius) var(--radius) 0 0;
    transition: transform 180ms ease, background 180ms ease, color 180ms ease;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.6px;
    background: transparent;
    border: 1px solid transparent;
    margin-right: 0;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(0);
}

/* Active tab - always with good contrast */
.nav-link.active {
    background-color: var(--accent-red);
    color: #ffffff;
    /* White text for contrast on red */
    font-size: 1.35rem;
    box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.5);
    transform: translateY(3px);
    border: 4px solid var(--accent-red);
    padding: 0.3rem 1.15rem;
}

/* main content area margin to visually connect tabs */
main {
    margin-top: -1px;
    flex: 1 0 auto;
    position: relative;
    background-color: var(--body-bg);
    z-index: 1;
}

.hero {
    /* Keep dark-navy which complements primary-blue */
    background: var(--footer-bg);
    /* Use footer-bg for consistency */
    color: var(--text-light);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-images {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-img {
    position: absolute;
    object-fit: cover;
    /* filter: blur(1px) brightness(0.95); */
    height: 100%;
    /* Ensure images overlap slightly to avoid gaps */
    will-change: transform, clip-path;
}

.hero-img-left {
    left: 0;
    top: 0;
    width: 30%;
    clip-path: polygon(0 0, 80% 0, 100% 100%, 0% 100%);
    z-index: 3;
}

.hero-img-center {
    left: 20%;
    top: 0;
    width: 60%;
    position: absolute;
    opacity: 0.25;
    z-index: 1;
}

/* Remove or ignore .blend-panel */

/* Add overlay that matches .hero-img-center */
.hero-img-center-overlay {
    /* ...existing code... */
    background: rgba(0, 50, 153, 0.35);
    /* Uses primary-blue (#003299) with transparency */
}

.hero-img-right {
    right: 0;
    top: 0;
    width: 30%;
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
    z-index: 3;
}

/* Make sure hero text is above images */
.hero .container {
    position: relative;
    z-index: 3;
    background: none;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 1.8px;
    margin-bottom: 0.6rem;
}

.hero p {
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0.6rem auto 2rem;
}

/* CTA and primary buttons */
.cta-button,
.btn-primary {
    background-color: var(--accent-red);
    color: #ffffff;
    /* White text for contrast on red */
    padding: 12px 26px;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow-soft);
}

.cta-button:hover,
.btn-primary:hover {
    background-color: var(--accent-red-dark);
    color: #ffffff;
    /* ...existing code... */
}

/* Secondary button */
.btn-secondary {
    background: var(--card-bg);
    color: var(--primary-blue);
    /* Use primary-blue for text */
    border: 2px solid var(--primary-blue);
    /* Use primary-blue for border */
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--primary-blue);
    /* Fill with primary-blue on hover */
    color: var(--white);
}

/* Feature cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 1.75rem;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow-soft);
    border: 1px solid var(--border-light);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow);
    border-color: var(--accent-red);
    /* Add red border on hover for emphasis */
}

.feature-card h3 {
    color: var(--feature-heading);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--card-text);
    /* ...existing code... */
}


/* Hero scrolling messages animation */
.scrolling-hero-messages {
    height: 3rem;
    /* Fixed height to show one item */
    overflow: hidden;
    position: relative;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scrolling-hero-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    will-change: transform;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scrolling-hero-item {
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--hero-scroll-text);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.8);
}

/* Pause animation on hover */
.scrolling-hero-messages:hover .scrolling-hero-track {
    animation-play-state: paused;
}

.services-hero {
    position: relative;
    z-index: 3;
}

.services-hero h1 {
    text-shadow: 0 2px 6px rgba(0, 0, 0, 1);
}

.services-description {
    margin-top: 2rem;
    z-index: 3;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 1);
}


/* Affiliations */
.affiliations-content {
    padding: 2rem 0;
    background: var(--body-bg);
    color: var(--card-text);
}

.affiliations-intro {
    text-align: center;
    margin-bottom: 1rem;
}

.affiliations-intro h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Affiliations list as two equal columns */
.affiliations-list {
    display: grid;
    font-size: 1.1rem;
    grid-template-columns: 1fr 1fr;
    /* equal width columns */
    gap: 2rem;
    align-items: start;
}

/* union-list class for unordered lists  */
.union-list {
    padding-left: 1.25rem;
}

.union-list li::marker {
    color: var(--accent-red);
    /* Use red accent for list markers */
    font-size: 0.75em;
}

/* Affiliations vertical gallery */
.affiliation-gallery-container {
    position: relative;
    height: 400px;
    margin: 0;
    overflow: hidden;
    padding: 0.5rem 0;
}

.affiliation-gallery {
    height: 100%;
    display: block;
    position: relative;
    overflow: hidden;
    padding: 0.75rem 0;
    mask-image: linear-gradient(to bottom,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 1) 10%,
            rgba(0, 0, 0, 1) 90%,
            rgba(0, 0, 0, 0) 100%);
    -webkit-mask-image: linear-gradient(to bottom,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 1) 10%,
            rgba(0, 0, 0, 1) 90%,
            rgba(0, 0, 0, 0) 100%);
    pointer-events: none;
}

.affiliation-track {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    will-change: transform;
    user-select: none;
    pointer-events: auto;
    animation: scrollVertical 30s linear infinite;
}


.affiliation-track img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    max-height: 280px;
    border-radius: var(--radius);
    border: 1px solid rgba(0, 50, 153, 0.1);
    /* Blue-tinted border */
}

@keyframes scrollVertical {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(-78%);
    }
}

/* bid-requests page styling */
.bid-requests-content {
    color: var(--card-text);
    padding: 2rem 0;
    min-height: 600px;
}

/* --- Unified Form Styles --- */
.form-section {
    background: var(--form-bg);
    color: var(--form-text);
    box-shadow: var(--card-shadow);
    padding: 1rem 1.5rem;
    max-width: 840px;
    margin: 0 auto;
    margin-top: 0rem;
}

.form-section p {
    font-size: 2rem;
}

.form-section h2 {
    color: var(--label);
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 700;
    letter-spacing: 1px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.form-group label {
    font-weight: 700;
    color: var(--label);
    margin-bottom: 0.7rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius);
    border: 1.5px solid var(--border-light);
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--form-text);
    transition: border-color 0.18s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-red);
    outline: none;
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.2);
}

.form-group input[required],
.form-group textarea[required] {
    border-left: 4px solid var(--accent-red);
}

.form-group input[type="file"] {
    padding: 0.5rem 0;
    background: none;
    border: none;
}

.form-group small {
    color: var(--medium-gray);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.2rem;
    justify-content: flex-end;
}

.btn-primary,
.btn-secondary {
    min-width: 160px;
    font-size: 1.05rem;
}

.btn-primary {
    background-color: var(--accent-red);
    color: #fff;
    border: none;
    font-weight: 700;
    transition: background 0.18s;
}

.btn-primary:hover {
    background-color: var(--accent-red-dark);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    font-weight: 600;
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: #fff;
}

/* Location map */
.location-map-content {
    padding: 2rem 0;
    background: var(--body-bg);
    color: var(--card-text);
    text-align: center;
}

.location-map-content iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    height: 60vh;
    min-height: 320px;
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
}

.location-map-content p {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--card-text);
}

/* Footer */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    font-size: 0.8rem;
    padding: 1rem 0;
    border-top: 4px solid var(--accent-red);
}

/* Mobile navigation and header for <=840px */
@media (max-width: 840px) {
    /* Mobile header navigation */
    header .container {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 0;
        position: relative;
        padding: 0 0.5rem;
        min-height: 56px;
        height: 64px;
    }

    .logo {
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
        height: 72px;
        justify-content: flex-start;
        /* Ensure logo is left-aligned */
        flex: 0 0 auto;
    }

    .logo img {
        height: 60px;
        width: auto;
        display: block;
    }

    .main-nav {
        display: none;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background: var(--dark-navy);
        border-top: 2px solid var(--accent-red);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        z-index: 999;
        /* Add transition for smooth closing */
        transition: opacity 200ms ease, transform 200ms ease;
        opacity: 0;
        transform: translateY(-10px);
        pointer-events: none;
    }

    .main-nav.mobile-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem 0;
        animation: slideDown 300ms ease-out;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    /* Ensure menu closes when a nav link is clicked */
    .nav-link {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        text-align: center;
        border-radius: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        transition: background-color 180ms ease, color 180ms ease;
        /* Add click behavior to close menu */
        position: relative;
    }

    /* Close mobile menu when clicking any nav link */
    .nav-link:focus,
    .nav-link:active {
        /* This will help trigger JavaScript to close the menu */
        outline: 2px solid var(--accent-red);
        outline-offset: -2px;
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-link:hover {
        background-color: rgba(255, 255, 255, 0.1);
        transform: none;
    }

    .nav-link.active {
        background-color: var(--accent-red);
        color: #ffffff;
        font-size: 1rem;
        box-shadow: none;
        transform: none;
        border: none;
        padding: 0.8rem 1.5rem;
        font-weight: 700;
    }

    .mobile-menu-toggle {
        display: block;
        position: absolute;
        top: 50%;
        right: 1rem;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: var(--white);
        font-size: 2rem;
        cursor: pointer;
        z-index: 1000;
    }

    /* Add mobile hero images rule: only center image visible */
    .hero-img-left,
    .hero-img-right {
        display: none;
    }

    .hero-img-center {
        left: 0;
        width: 100%;
        clip-path: none;
    }
}

/* Mobile styles updates */
@media (max-width: 768px) {

    /* Scrolling hero responsive */
    .scrolling-hero-item {
        font-size: 1.2rem;
    }

    .scrolling-hero-messages {
        height: 2.5rem;
    }

    .scrolling-hero-item {
        height: 2.5rem;
    }

    .affiliations-content {
        display: flex;
        flex-direction: column;
    }

    /* Affiliations mobile layout */
    .affiliations-list {
        grid-template-columns: 1fr;
        gap: 0;
        height: 100vh;
        /* 40% of viewport height */
        grid-template-rows: 1fr 1fr;
        /* Split into two equal halves */
        flex: 0 0 auto;
        /* Don't grow or shrink */
    }

    .union-listings {
        height: 35vh;
        overflow-y: auto;
        padding: 1rem;
        border-block: 2px solid var(--accent-red);
    }

    .affiliations-intro {
        text-align: center;
        margin-bottom: 0.8rem;
        padding: 0;
        flex: 0 0 auto;
        /* Don't grow or shrink */
    }

    .affiliations-intro h2 {
        font-size: 1.0rem;
        font-weight: 500;
        margin-bottom: 0;
        padding: 0;
        line-height: 1.5rem;
    }

    .affiliation-gallery-container {
        height: 65vh;
        /* 50% of viewport height */
        flex: 0 0 auto;
        /* Don't grow or shrink */
    }

    /* Bid form mobile */
    .project-bid-section {
        padding: 1.2rem 0.5rem;
        max-width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .form-actions {
        flex-direction: column;
        gap: 0.7rem;
        align-items: stretch;
    }

    .location-map-content p {
        font-size: 1.0rem;
        font-weight: 500;
        color: var(--card-text);
    }
}

@media (max-width: 480px) {
    .scrolling-hero-item {
        font-size: 1rem;
        letter-spacing: 0.8px;
    }

    .scrolling-hero-messages {
        height: 2rem;
    }

    .scrolling-hero-item {
        height: 2rem;
    }
}

@media (min-width: 900px) {
    .affiliation-gallery-container {
        height: 520px;
    }
}

/* Careers Section Layout */
.careers-content {
    display: flex;
    flex-direction: row;
    gap: 1.5rem; /* Reduced gap for closer content */
    align-items: flex-start;
    justify-content: center;
    padding: 2rem 0;
    background: var(--body-bg);
    color: var(--card-text);
    min-height: 600px;
    max-width: 1100px;      /* Center block on large screens */
    margin: 0 auto;         /* Center horizontally */
}

.careers-left {
    flex: 1 1 340px;
    max-width: 420px;
    background: none;
    display: flex;
    flex-direction: column;
    justify-content: center; /* Vertically center content if possible */
}

.careers-left h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.careers-left p {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    color: var(--card-text);
}

.job-listings {
    margin-bottom: 2.2rem;
    padding-left: 1.3rem;
}

.job-listings li {
    font-size: 1.08rem;
    margin-bottom: 0.35rem;
    color: var(--accent-red);
    font-weight: 600;
    letter-spacing: 0.2px;
}

.careers-left h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.1rem;
    color: var(--primary-blue);
}

/* --- Remove resume-form and careers-form-card specific rules --- */
/*
.resume-form .form-group label,
.resume-form .form-group input,
.resume-form .form-group select,
.resume-form .form-group input:focus,
.resume-form .form-group select:focus,
.resume-form .form-group input[type="file"],
.resume-form .form-group small,
.resume-form .form-actions,
.resume-form .btn-primary,
.resume-form .btn-secondary,
.resume-form .btn-primary:hover,
.resume-form .btn-secondary:hover,
.careers-form-card
{
    ...removed...
}
*/

/* Responsive: Stack columns on mobile */
@media (max-width: 900px) {
    .careers-content {
        flex-direction: column;
        gap: 0rem;
        padding: 1rem 0.5rem;
        max-width: 100%;   /* Full width on mobile */
        align-items: center; /* Center children horizontally */
    }
    .careers-left {
        max-width: 100%;
        align-items: center; /* Center content horizontally */
        display: flex;
        flex-direction: column;
        text-align: center; /* Center text */
    }
    .form-section {
        margin-inline: 1rem;
        margin-top: 0rem;
        margin-left: auto;   /* Center form horizontally */
        margin-right: auto;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
    .form-actions {
        flex-direction: column;
        gap: 0.7rem;
        align-items: stretch;
    }
}