/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: #B2C295;
    backdrop-filter: blur(18px) saturate(160%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    padding: 1rem 2rem;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 1rem;
}

/* Current section title in nav (mobile only) */
#currentSectionTitle {
    display: none;
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.burger {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 0;
    cursor: pointer;
    position: relative;
    z-index: 1002; /* above drawer */
}
.burger span,
.burger::before,
.burger::after {
    content: '';
    position: absolute;
    left: 8px;
    right: 8px;
    height: 3px;
    background: #EAEFE6; /* high-contrast bars */
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}
.burger span { top: 50%; transform: translateY(-50%); }
.burger::before { top: 12px; }
.burger::after { bottom: 12px; }
.burger[aria-expanded="true"] span { opacity: 0; }
.burger[aria-expanded="true"]::before { transform: translateY(8px) rotate(45deg); }
.burger[aria-expanded="true"]::after { transform: translateY(-8px) rotate(-45deg); }

/* Logo with circular background */
.logo {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 56px;
    padding-left: 0; /* remove circle space */
}
.logo::before { display: none; }
.logo-icon {
    height: 50px; /* slightly larger */
    width: auto;
    /* Tint to #0F4A51 */
    filter: brightness(0) saturate(100%) invert(9%) sepia(21%) saturate(2022%) hue-rotate(152deg) brightness(92%) contrast(95%);
    -webkit-filter: brightness(0) saturate(100%) invert(9%) sepia(21%) saturate(2022%) hue-rotate(152deg) brightness(92%) contrast(95%);
}

/* Navigation logo animation removed to prevent scroll rendering issues */

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.75rem; /* closer spacing */
    position: relative;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-primary);
    font-family: 'Manrope', Inter, -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400; /* keep light; do not thicken on hover */
    position: relative;
    padding: 0.3rem 0.65rem; /* tighter padding */
    font-size: 0.9rem; /* slightly smaller */
    border-radius: 22px;
    transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
    cursor: pointer;
    z-index: 2;
    overflow: hidden;
    white-space: nowrap; /* prevent multi-line labels */
}
/* Active state uses static background; no animated background */
.nav-links li a.active { background: var(--earthy-olive); color: var(--white); }
.nav-links li a:hover { background: #0F4A51; color: #ffffff; }
/* Disable previous overlay text */
.nav-links li a .text-overlay { display: none !important; }

/* Hide the old moving background element completely */
.nav-background { display: none !important; }

@media (max-width: 1200px) {
    .nav-links { gap: 0.6rem; }
    .nav-links li a { font-size: 0.85rem; padding: 0.25rem 0.6rem; }
}

.nav-links li a:hover {
    transform: translateY(-2px);
    color: #ffffff; /* ensure white text on hover */
}

.nav-links li a .text-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: circle(0% at 50% 50%);
    transition: clip-path 0.4s ease;
    pointer-events: none;
}

.nav-links li a.active .text-overlay {
    clip-path: circle(100% at 50% 50%);
}

.nav-links li a.active {
    color: var(--white);
    font-weight: 600; /* subtle emphasis, not too thick */
}

/* Sliding background */
.nav-background {
    position: absolute;
    background: var(--earthy-olive);
    border-radius: 25px;
    box-shadow: 0 8px 25px rgba(111, 118, 64, 0.35);
    z-index: 1;
    opacity: 0;
    top: 50%;
    transform: translateY(-50%);
}

/* When burger menu is shown (<=1100px), stack cards vertically (no horizontal scroll) */
@media (max-width: 1100px) {
    .nav-links {
        position: fixed;
        top: 64px;
        right: 0;
        bottom: 0;
        width: min(72vw, 300px); /* narrower drawer */
        /* Constrain to viewport only on small screens */
        min-height: auto;
        height: auto;
        background-color: #1E2A26 !important; /* Force solid background */
        background: #1E2A26 !important; /* Force solid background */
        border-left: 2px solid rgba(255, 255, 255, 0.2);
        display: none; /* hidden until open */
        flex-direction: column;
        gap: 0.75rem; /* Increased gap for better spacing */
        padding: 1.5rem 1rem; /* Increased top/bottom padding */
        transform: translateX(100%);
        transition: transform 0.35s ease;
        z-index: 1001;
        box-shadow: -12px 0 40px rgba(0,0,0,0.6);
        color: #EAEFE6; /* High contrast light text */
        opacity: 1 !important;
        justify-content: flex-start; /* Align items to top */
        overflow-y: visible;
    }
    nav.open .nav-links { 
        display: flex !important; 
        transform: translateX(0) !important; 
        background-color: #1E2A26 !important;
        background: #1E2A26 !important;
        opacity: 1 !important;
    }
    .nav-background { display: none !important; }
    
    /* Add overlay behind drawer for better focus */
    nav.open::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        backdrop-filter: blur(3px);
        -webkit-backdrop-filter: blur(3px);
    }
    .nav-links li a { 
        border-radius: 10px; 
        padding: 1rem 1rem; /* Increased padding for better touch targets */
        color: #EAEFE6; /* High contrast light text */
        background: transparent; 
        font-weight: 500;
        border: 1px solid transparent;
        transition: all 0.3s ease;
        display: block; /* Ensure full width */
        text-align: left; /* Left align text */
        width: 100%; /* Full width */
        box-sizing: border-box;
    }
    .nav-links li a:hover { 
        background: #0F4A51; 
        border-color: rgba(255, 255, 255, 0.2);
        transform: translateX(-2px);
        color: #ffffff;
    }
    .nav-links li a.active { 
        background: var(--earthy-olive); 
        color: var(--white);
        border-color: rgba(255, 255, 255, 0.2);
        box-shadow: 0 4px 12px rgba(111, 118, 64, 0.3);
    }
    .burger { display: block; }
    .burger span, .burger::before, .burger::after { background: #EAEFE6; }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    nav {
        padding: 0.75rem 1rem;
    }
    
    .nav-container {
        max-width: 100%;
        padding: 0 0.5rem;
    }
    
    .logo {
        height: 48px;
    }
    
    .logo-icon {
        height: 48px;
    }
    
    .burger {
        width: 40px;
        height: 40px;
    }
    
    .burger span,
    .burger::before,
    .burger::after {
        left: 6px;
        right: 6px;
    }
    
    #currentSectionTitle {
        display: none;
        font-size: 0.9rem;
        max-width: 150px;
    }
    
    /* Enhanced mobile drawer */
    .nav-links {
        width: min(85vw, 320px) !important;
        min-height: calc(100vh - 64px) !important; /* Full height coverage only for mobile */
        height: auto !important; /* Allow expansion */
        background-color: #1E2A26 !important; /* Force solid background */
        background: #1E2A26 !important; /* Force solid background */
        padding: 2rem 1.5rem !important; /* More padding for all menu items */
        gap: 1rem !important; /* Larger gap between items */
        opacity: 1 !important;
        border-left: 2px solid rgba(255, 255, 255, 0.25) !important;
        box-shadow: -15px 0 50px rgba(0,0,0,0.8) !important;
        justify-content: flex-start !important; /* Align to top */
        overflow-y: auto !important; /* Allow scrolling if needed */
    }
    
    .nav-links li a {
        padding: 1.25rem 1.5rem !important; /* Larger padding for all 7 menu items */
        font-size: 1.1rem !important; /* Slightly larger text */
        font-weight: 600 !important;
        color: #EAEFE6 !important; /* High contrast light text for mobile */
        min-height: 60px !important; /* Ensure consistent height for touch */
        display: flex !important; /* Use flex for better alignment */
        align-items: center !important; /* Center text vertically */
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .nav-links li a:hover {
        background: #0F4A51 !important;
        transform: translateX(-3px) !important;
        color: #ffffff !important;
    }
}

/* Note: Global emergency fallbacks removed to avoid affecting desktop layout. */