/* ═══════════════════════════════════════════════
   LandTank Web – Layout (Header & Footer)
   ═══════════════════════════════════════════════ */

/* ── Header ── */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(245, 242, 235, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--lt-gray-lighter);
    transition: all var(--transition-base);
}
.site-header.scrolled {
    background: rgba(245, 242, 235, 0.95);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    max-width: var(--max-width); margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex; align-items: center; justify-content: space-between;
    height: var(--header-height);
}
.header-logo { display: flex; align-items: center; gap: var(--space-sm); text-decoration: none; }
.header-logo img { height: 52px; width: auto; }

.header-nav { display: flex; align-items: center; gap: var(--space-xl); }
.header-nav a {
    font-size: var(--text-sm); font-weight: 500; color: var(--lt-anthracite);
    text-decoration: none; position: relative; padding: 4px 0;
    transition: color var(--transition-fast);
}
.header-nav a::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 2px; background: var(--lt-green);
    border-radius: 1px; transition: width var(--transition-base);
}
.header-nav a:hover { color: var(--lt-green); }
.header-nav a:hover::after, .header-nav a.active::after { width: 100%; }
.header-nav a.active { color: var(--lt-green); font-weight: 600; }

.header-cta {
    display: flex; align-items: center; gap: var(--space-md);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none; background: none; border: none; cursor: pointer;
    width: 40px; height: 40px; position: relative;
    flex-direction: column; align-items: center; justify-content: center;
}
.menu-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--lt-anthracite); border-radius: 2px;
    transition: all var(--transition-base);
}
.menu-toggle span:nth-child(2) { margin: 6px 0; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* Mobile Nav Overlay */
.mobile-nav {
    display: none; position: fixed; top: var(--header-height);
    left: 0; right: 0; bottom: 0;
    background: var(--lt-cream);
    padding: var(--space-xl) var(--space-lg);
    flex-direction: column; gap: var(--space-md);
    z-index: 99;
}
.mobile-nav.active { display: flex; }
.mobile-nav a {
    font-size: var(--text-xl); font-weight: 600; color: var(--lt-anthracite);
    text-decoration: none; padding: var(--space-md) 0;
    border-bottom: 1px solid var(--lt-gray-lighter);
}
.mobile-nav a:hover { color: var(--lt-green); }
.mobile-nav a.btn {
    font-size: var(--text-base);
    color: var(--lt-white);
    padding: 14px 32px;
    border-bottom: none;
    justify-content: center;
}
.mobile-nav a.btn:hover {
    color: var(--lt-white);
}

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

/* ── Hero ── */
.hero {
    position: relative; min-height: 85vh;
    display: flex; align-items: center;
    overflow: hidden; margin-top: var(--header-height);
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
}
.hero-bg img {
    width: 100%; height: 100%; object-fit: cover;
}
.hero-bg::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(245,242,235,0.92) 0%, rgba(245,242,235,0.6) 50%, rgba(245,242,235,0.2) 100%);
}
.hero-content {
    position: relative; z-index: 1;
    max-width: var(--max-width); margin: 0 auto;
    padding: var(--space-4xl) var(--space-lg);
}
.hero h1 { max-width: 650px; margin-bottom: var(--space-lg); }
.hero .subtitle { max-width: 500px; margin-bottom: var(--space-xl); color: var(--lt-charcoal); }
.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

.hero-sm {
    min-height: 45vh; padding-top: var(--header-height);
    background: linear-gradient(180deg, var(--lt-cream) 0%, var(--lt-cream-light) 100%);
    display: flex; align-items: center;
}
.hero-sm .hero-content { padding: var(--space-3xl) var(--space-lg); }

@media (max-width: 640px) {
    .hero { min-height: 70vh; }
    .hero-sm { min-height: 35vh; }
}

/* ── Footer ── */
.site-footer {
    background: var(--lt-anthracite); color: rgba(255,255,255,0.7);
    padding: var(--space-4xl) 0 var(--space-xl);
}
.footer-grid {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-2xl); margin-bottom: var(--space-3xl);
}
.footer-brand img { height: 60px; margin-bottom: var(--space-md); }
.footer-brand p { font-size: var(--text-sm); line-height: 1.7; color: rgba(255,255,255,0.5); }
.footer-col h4 {
    font-family: var(--font-heading); font-size: var(--text-sm);
    font-weight: 700; color: var(--lt-white);
    text-transform: uppercase; letter-spacing: 0.06em;
    margin-bottom: var(--space-md);
}
.footer-col a {
    display: block; font-size: var(--text-sm); color: rgba(255,255,255,0.6);
    padding: var(--space-xs) 0; transition: color var(--transition-fast);
    text-decoration: none;
}
.footer-col a:hover { color: var(--lt-green-light); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-lg);
    display: flex; align-items: center; justify-content: space-between;
    font-size: var(--text-xs); color: rgba(255,255,255,0.35);
}
.footer-legal { display: flex; gap: var(--space-lg); }
.footer-legal a { color: rgba(255,255,255,0.35); text-decoration: none; font-size: var(--text-xs); }
.footer-legal a:hover { color: rgba(255,255,255,0.6); }

@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
}

/* ── Page offset ── */
.page-content { margin-top: var(--header-height); }