/**
 * SpectrumX — Main stylesheet
 * Shared across all pages. Header/footer loaded via includes.
 */

/* No top space on mobile: header container out of flow so hero starts at top */
#header-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    overflow: visible;
    margin: 0;
    padding: 0;
}

/* Ensure html/body don't add top gap on mobile */
html, body {
    margin: 0;
    padding: 0;
}

/* Skip link: visible on focus for accessibility and SEO */
.skip-link {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
    z-index: 100;
}
.skip-link:focus {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
    width: auto;
    height: auto;
    padding: 0.75rem 1rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background: #000;
    color: #fff;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* About page: number circles (force perfect circle, no stretch) */
.about-number-circle {
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
    min-height: 2rem;
    max-width: 2rem;
    max-height: 2rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: #000;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    box-sizing: border-box;
}

/* All headings: Montserrat for a cohesive, bold look */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
}

/* Hero H1: extra weight for impact */
.hero-heading {
    font-weight: 900;
}

/* Inner pages hero: banner image set by main.js (basePath-aware). Min height 500px (not index). */
.inner-page-hero {
    min-height: 500px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
@media (min-width: 768px) {
    .inner-page-hero {
        min-height: 500px;
    }
}

/* Header: prevent collapse on mobile scroll (iOS Safari address bar hide) */
#main-header {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}
@media (max-width: 767px) {
    #main-header {
        min-height: 56px;
        padding-top: env(safe-area-inset-top, 0);
    }
    #main-header nav,
    #main-header nav > div {
        min-height: 56px;
        flex-shrink: 0;
    }
    #main-header .header-logo,
    #main-header .header-mobile-btn {
        flex-shrink: 0;
    }
}

/* Header logo: light version by default (over dark hero), dark version when scrolled or menu open */
.header-logo-light {
    display: block;
}
.header-logo-dark {
    display: none;
}

/* When scrolled: solid header and dark logo/links; light shadow instead of border */
#main-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

#main-header.scrolled .header-logo-light {
    display: none;
}
#main-header.scrolled .header-logo-dark {
    display: block;
}

#main-header.scrolled .header-link {
    color: #000;
}

#main-header.scrolled .header-link:hover {
    color: #333;
}

#main-header.scrolled .header-mobile-btn {
    color: #000;
    border-color: #000;
    background: transparent;
}

#main-header.scrolled .header-mobile-btn:hover {
    background: #f5f5f5;
}

/* CTA button: white over hero; black + white when scrolled (B&W theme) */
#main-header .header-cta-btn {
    background: #fff;
    color: #000;
}

#main-header .header-cta-btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

#main-header.scrolled .header-cta-btn {
    background: #000;
    color: #fff;
}

#main-header.scrolled .header-cta-btn:hover {
    background: #333;
}

#main-header.scrolled .header-cta-btn .header-cta-icon {
    color: #fff;
}

/* Mega menu: fade in/out (no slide) */
.mega-dropdown {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease-out, visibility 0.25s ease-out;
}

.group:hover .mega-dropdown,
.mega-dropdown.mega-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Mobile: header turns white when menu is open */
body.mobile-menu-open #main-header {
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
body.mobile-menu-open #main-header .header-logo-light {
    display: none;
}
body.mobile-menu-open #main-header .header-logo-dark {
    display: block;
}
body.mobile-menu-open #main-header .header-mobile-btn {
    color: #000;
    border-color: #000;
    background: transparent;
}

/* Mobile menu: fixed full viewport, top z-index */
#mobile-menu-backdrop,
#mobile-menu-wrapper {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
}

#mobile-menu-backdrop {
    z-index: 9998 !important;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    background: rgba(0, 0, 0, 0.5) !important;
}

body.mobile-menu-open #mobile-menu-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

#mobile-menu-wrapper {
    z-index: 9999 !important;
    pointer-events: none;
    visibility: hidden;
}

#mobile-menu-panel {
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

body.mobile-menu-open #mobile-menu-wrapper {
    pointer-events: auto;
    visibility: visible;
}

body.mobile-menu-open #mobile-menu-panel {
    transform: translateX(0);
}

@media (max-width: 767px) {
    .mobile-nav-item {
        display: flex;
        align-items: center;
        gap: 1rem;
        padding: 0.875rem 0;
        color: #000;
        font-size: 1rem;
        letter-spacing: 0.01em;
        border-bottom: 1px solid #e5e5e5;
        transition: background 0.2s, color 0.2s;
    }
    .mobile-nav-item:hover,
    .mobile-nav-item:focus {
        background: #f5f5f5;
        color: #000;
    }
    .mobile-nav-item.active {
        background: #ebebeb;
    }
    .mobile-nav-item .nav-icon {
        flex-shrink: 0;
        width: 1.5rem;
        height: 1.5rem;
        color: #000;
    }
    .mobile-nav-cta,
    .mobile-nav-cta:hover,
    .mobile-nav-cta:focus {
        color: #fff !important;
        background: #000;
    }
    .mobile-nav-cta .nav-icon {
        color: #fff !important;
    }
    .mobile-nav-cta:hover {
        background: #262626;
    }
    .mobile-services-trigger {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 0.875rem 0;
        background: none;
        border: none;
        border-bottom: 1px solid #e5e5e5;
        color: #000;
        font-size: 1rem;
        cursor: pointer;
        font-family: inherit;
        text-align: left;
    }
    .mobile-services-trigger:hover {
        background: #f5f5f5;
    }
    .mobile-services-trigger .nav-icon {
        flex-shrink: 0;
        width: 1.5rem;
        height: 1.5rem;
        color: #000;
    }
    .mobile-services-trigger svg.chevron {
        transition: transform 0.25s ease;
        flex-shrink: 0;
        color: #525252;
    }
    .mobile-services-trigger[aria-expanded="true"] svg.chevron {
        transform: rotate(180deg);
    }
    .mobile-services-sub {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .mobile-services-sub.open {
        max-height: 420px;
    }
    .mobile-services-sub a {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.5rem 0 0.5rem 2.25rem;
        color: #404040;
        font-size: 0.9375rem;
    }
    .mobile-services-sub a:hover {
        color: #000;
    }
    .mobile-services-sub a svg {
        color: #525252;
    }
    .mobile-services-sub a:hover svg {
        color: #000;
    }
    body.mobile-menu-open {
        overflow: hidden;
    }
    body.mobile-menu-open #main-header .header-mobile-btn {
        border-color: #000;
        color: #000;
    }
}