/* ==========================================================================
   AURAX — Layout Foundations & Header/Footer Shell (Mobile-First)
   Tight Vertical Rhythm & Zero Wasted Space
   ========================================================================== */


/* Background Color Modifiers */
.section-black {
    background-color: var(--color-black);
    color: var(--color-white);
}

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

.section-charcoal {
    background-color: var(--color-charcoal);
    color: var(--color-white);
}

.section-graphite {
    background-color: var(--color-graphite);
    color: var(--color-white);
}

.section-ivory {
    background-color: var(--color-ivory);
    color: #111111;
}

.section-paper {
    background-color: var(--color-paper);
    color: #111111;
}

/* Responsive Grids (Mobile-First: Single Column default) */
.grid-2,
.grid-3,
.grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
}

@media (min-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-sm);
    }
}

/* Split Asymmetric Layouts (Mobile-First: Single Column default) */
.split,
.split-60-40,
.split-40-60 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .split {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }
    .split-60-40 {
        grid-template-columns: 1.3fr 1fr;
        gap: var(--space-lg);
    }
    .split-40-60 {
        grid-template-columns: 1fr 1.3fr;
        gap: var(--space-lg);
    }
}

.align-center {
    align-items: center;
}

.align-start {
    align-items: start;
}

.text-center {
    text-align: center;
}

/* ==========================================================================
   SITE HEADER & NAVIGATION
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 500;
    transition: background-color var(--transition-base), border-color var(--transition-base), height var(--transition-base);
    background-color: rgba(8, 8, 8, 0.40);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header.is-scrolled {
    height: 62px;
    background-color: rgba(8, 8, 8, 0.72);
    border-bottom-color: rgba(255, 255, 255, 0.12);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.header-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--color-cement);
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-green-accent);
    transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--color-pure-white);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    width: 100%;
}

.header-cta {
    min-height: 38px;
    padding: 6px 16px;
    font-size: var(--text-xs);
}

/* Mobile Hamburger Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 40px;
    height: 40px;
    padding: 11px 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 600;
    box-sizing: border-box;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-pure-white);
    border-radius: 1px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.is-active .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.is-active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.is-active .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   MOBILE NATIVE APP SHEET DRAWER
   ========================================================================== */

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: #0A0A0A;
    z-index: 550;
    display: flex;
    flex-direction: column;
    padding: 16px var(--container-padding-mobile);
    padding-top: calc(12px + env(safe-area-inset-top));
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
    transform: translateY(-100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-nav.is-active {
    transform: translateY(0);
}

.mobile-sheet-handle {
    width: 36px;
    height: 4px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 2px;
    margin: 0 auto 12px auto;
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-app-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1.5px;
    color: var(--color-green-accent);
}

.mobile-nav-close {
    font-size: 24px;
    color: var(--color-sand);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    line-height: 1;
}

.mobile-nav-links {
    margin-top: var(--space-md);
}

.mobile-nav-links ul {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mobile-link-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-pure-white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.mobile-link-item:active,
.mobile-link-item.is-active {
    background: rgba(94, 130, 76, 0.16);
    border-color: var(--color-green-accent);
    color: var(--color-pure-white);
}

.mobile-link-arrow {
    font-size: 14px;
    color: var(--color-green-accent);
}

.mobile-nav-actions {
    margin-top: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-nav-contact {
    margin-top: auto;
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-app-ver {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-ash);
}

.mobile-contact-link {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-green-accent);
}

/* ==========================================================================
   MOBILE NATIVE APP FLOATING DOCK BAR
   ========================================================================== */

.mobile-cta-bar {
    display: none;
    position: fixed;
    bottom: calc(12px + env(safe-area-inset-bottom));
    left: 14px;
    right: 14px;
    width: auto;
    height: 52px;
    background: rgba(14, 14, 14, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 26px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.75), 0 0 1px rgba(255, 255, 255, 0.2) inset;
    z-index: 450;
    grid-template-columns: 1fr 1.05fr 1.25fr;
    gap: 4px;
    padding: 4px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s;
}

.mobile-cta-bar.is-hidden {
    transform: translateY(160%);
    opacity: 0;
}

.mobile-cta-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    text-decoration: none;
    color: var(--color-pure-white);
    font-family: var(--font-heading);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    border-radius: 20px;
    height: 100%;
    min-height: 44px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.15s ease, transform 0.15s ease;
}

.mobile-cta-item:active {
    transform: scale(0.95);
    background: rgba(255, 255, 255, 0.12);
}

.mobile-cta-item:last-child {
    background: linear-gradient(135deg, #6B9457 0%, #4D6E3D 100%);
    border: 1px solid #7AA662;
    color: var(--color-pure-white);
    box-shadow: 0 4px 12px rgba(94, 130, 76, 0.35);
}

.mobile-cta-item:last-child:active {
    transform: scale(0.95);
    box-shadow: 0 2px 6px rgba(94, 130, 76, 0.2);
}

.mobile-cta-item svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

/* ==========================================================================
   SITE FOOTER
   ========================================================================== */

/* ==========================================================================
   SITE FOOTER (Ultra-Compact on Mobile, Architectural on Desktop)
   ========================================================================== */

.site-footer {
    background-color: #050505;
    color: var(--color-white);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: clamp(24px, 4vw, 48px);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo {
    display: inline-block;
    text-decoration: none;
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 12.5px;
    line-height: 1.45;
    color: var(--color-stone);
    max-width: 320px;
    margin: 0 0 12px 0;
}

.footer-brand-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.footer-links-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1.8fr 2fr 1.4fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    
    .footer-links-group {
        gap: 32px;
    }
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-green-accent);
    margin-bottom: 8px;
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.footer-links a {
    font-size: 12.5px;
    color: var(--color-cement);
    display: inline-block;
    padding: 2px 0;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-hq-address {
    font-size: 11.5px;
    color: var(--color-stone);
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-hq-label {
    color: var(--color-pure-white);
    font-weight: 600;
}

.footer-hq-item a {
    font-size: 12px;
    color: var(--color-cement);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-hq-item a:hover {
    color: var(--color-sand);
}

.footer-wordmark {
    text-align: center;
    user-select: none;
    width: 100%;
    max-width: 900px;
    margin: 0 auto 12px;
    padding: 0 20px;
    opacity: 0.04;
    pointer-events: none;
}

.footer-wordmark svg {
    width: 100%;
    height: auto;
    max-height: 36px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 12px 0;
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
    font-size: 11px;
    color: var(--color-ash);
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom-inner p {
    margin: 0;
    font-size: 11px;
    color: var(--color-ash);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-legal a {
    color: var(--color-ash);
    text-decoration: none;
    font-size: 11px;
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-sand);
}

.footer-design-credit {
    font-size: 11px;
}

.footer-design-credit a {
    color: var(--color-green-accent) !important;
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer-design-credit a:hover {
    color: var(--color-pure-white) !important;
    text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE NAVIGATION BREAKPOINTS
   ========================================================================== */

@media (max-width: 1024px) {
    .header-nav,
    .header-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    .site-header,
    .site-header.is-scrolled {
        height: var(--header-height-mobile);
    }
    
    body {
        padding-bottom: calc(var(--mobile-cta-height) + env(safe-area-inset-bottom));
    }
    
    .mobile-cta-bar {
        display: grid;
    }
    
    .footer-bottom-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }
}