/**
 * WALBA Layout & Grid System
 */

/* Containers */
.container {
    width: 100%;
    max-width: var(--container-default);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-narrow {
    width: 100%;
    max-width: var(--container-narrow);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-wide {
    width: 100%;
    max-width: var(--container-wide);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.site-main {
    flex: 1 0 auto;
}

/* ==========================================================================
   Site Header
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(246, 243, 236, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
    box-shadow: 0 4px 20px rgba(18, 62, 55, 0.08);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (min-width: 992px) {
    .header-container {
        height: 84px;
    }
}

/* Brand Logo */
.brand-logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    line-height: 1;
}

.brand-logo-img {
    display: block;
    height: 38px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    transition: opacity var(--transition-fast);
}

@media (min-width: 768px) {
    .brand-logo-img {
        height: 48px;
        max-width: 170px;
    }
}

.brand-logo:hover .brand-logo-img {
    opacity: 0.85;
}

.brand-logo-img.small {
    height: 34px;
    max-width: 120px;
}

.footer-logo-img {
    display: block;
    height: 48px;
    width: auto;
    max-width: 165px;
    object-fit: contain;
    transition: opacity var(--transition-fast);
}

.footer-logo:hover .footer-logo-img {
    opacity: 0.85;
}

.brand-wordmark {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-forest);
    display: inline-flex;
    align-items: flex-start;
}

.brand-wordmark.small {
    font-size: 1.5rem;
}

.brand-tm {
    font-family: var(--font-body);
    font-size: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-brass-dark);
    margin-left: 2px;
    margin-top: 2px;
}

.brand-origin {
    font-family: var(--font-body);
    font-size: 0.625rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-forest);
    opacity: 0.85;
    margin-top: 3px;
    font-weight: 400;
}

/* Desktop Primary Navigation */
.primary-nav {
    display: none;
}

@media (min-width: 992px) {
    .primary-nav {
        display: block;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2.25rem;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--color-charcoal);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-brass);
    transition: width var(--transition-base);
}

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

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

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-contact-btn {
    display: none;
}

@media (min-width: 768px) {
    .header-contact-btn {
        display: inline-flex;
    }
}

/* Mobile Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
}

@media (min-width: 992px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 1.5px;
    background-color: var(--color-forest);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   Site Footer (Dark Forest Green #123E37)
   ========================================================================== */
.site-footer {
    background-color: var(--color-forest);
    color: var(--color-ivory);
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--color-forest-dark);
}

.footer-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--color-border-dark);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 4rem;
    }
}

.footer-brand-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
    text-decoration: none;
}

.footer-wordmark {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-ivory);
}

.footer-tagline {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-sand);
    opacity: 0.85;
    margin-top: 6px;
}

.footer-origin-text {
    font-size: 0.9375rem;
    color: var(--color-sand);
    opacity: 0.75;
    max-width: 380px;
    line-height: var(--line-height-relaxed);
}

.footer-col-heading {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-brass-light);
    margin-bottom: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--color-ivory);
    opacity: 0.85;
    transition: opacity var(--transition-fast), color var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-brass-light);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: space-between;
    align-items: flex-start;
    padding-top: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--color-sand);
    opacity: 0.7;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        align-items: center;
    }
}

.footer-credits {
    font-size: 0.8125rem;
}

.footer-credits a,
.footer-legal-links a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

.footer-credits a:hover,
.footer-legal-links a:hover {
    color: var(--color-ivory);
}