:root {
    /* Color Palette */
    --color-primary: #0F4532; /* Dark Green */
    --color-primary-light: #1A6C4F;
    --color-primary-dark: #08291D;
    
    --color-accent: #D4AF37; /* Gold */
    --color-accent-light: #FBF7EC;
    
    --color-text: #1E293B; /* Soft Black */
    --color-text-muted: #475569; /* Slightly darker for better readability */
    
    --color-bg: #F8FAFC; /* Light Gray Background */
    --color-surface: #FFFFFF; /* White Cards */
    --color-border: #E2E8F0;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(15, 69, 50, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 69, 50, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(15, 69, 50, 0.1);
    
    /* Radius - less rounded for professional look */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-main: 0.3s ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    font-size: 16px; /* Base size larger for older audience */
}

button {
    font-family: inherit;
    border: none;
    cursor: pointer;
    background: none;
}

a {
    text-decoration: none;
    color: inherit;
}

.hidden {
    display: none !important;
}

/* ================== ACCESS OVERLAY ================== */
.access-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--color-primary);
    background-image: radial-gradient(circle at top right, var(--color-primary-light), var(--color-primary));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1.5rem;
    transition: opacity var(--transition-main), visibility var(--transition-main);
}

.access-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

.access-card {
    background: var(--color-surface);
    width: 100%;
    max-width: 440px;
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.access-logo {
    width: 80px;
    height: 80px;
    background: var(--color-accent-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.access-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-primary-dark);
    line-height: 1.1;
}

.access-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-surface);
    font-weight: 700;
    font-size: 1.25rem; /* Larger font */
    padding: 1.25rem 2rem;
    height: 64px; /* Comfortable touch height */
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    box-shadow: var(--shadow-md);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
}

/* ================== MAIN APP (SINGLE SCREEN) ================== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Simple Header */
.top-header {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-icon {
    font-size: 2rem;
    color: var(--color-accent);
}

.header-titles {
    display: flex;
    flex-direction: column;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.1;
}

.header-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 2rem 1.5rem 4rem 1.5rem;
}

.content-inner {
    max-width: 1200px;
    margin: 0 auto;
}

/* Grid & Categories Layout */
.library-grid {
    display: flex;
    flex-direction: column;
    gap: 3.5rem; /* Clear separation between sections */
}

.category-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.category-title {
    font-size: 1.75rem; /* Larger */
    font-weight: 700;
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--color-border);
}

.category-title i {
    color: var(--color-accent);
}

.cards-container {
    display: grid;
    /* More compact cards: min 200px instead of 280px */
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

/* Card Styling - Compact, Solid, Professional */
.content-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.content-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.card-cover {
    height: 140px; /* Taller height to showcase the food image nicely */
    background: var(--color-bg);
    position: relative;
    border-bottom: 1px solid var(--color-border);
    overflow: hidden; 
}

.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-main);
}

.content-card:hover .card-cover img {
    transform: scale(1.05); /* very professional subtle zoom effect on image when user hovers */
}

.card-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    text-transform: uppercase;
    line-height: 1.2;
}

.card-desc {
    font-size: 1rem;
    color: var(--color-text-muted);
    flex: 1;
    line-height: 1.4;
}

/* Single Open Button */
.btn-open {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--color-primary);
    color: var(--color-surface);
    font-weight: 700;
    font-size: 1.1rem;
    height: 48px; /* Comfortable touch height for older users */
    border-radius: var(--radius-sm); /* Less rounded */
    width: 100%;
    margin-top: 0.5rem;
    transition: background-color var(--transition-fast);
}

.btn-open:hover {
    background-color: var(--color-primary-dark);
}

.btn-open i {
    font-size: 1.25rem;
}

/* ================== RESPONSIVE DESIGN ================== */
@media (max-width: 768px) {
    .content-area {
        padding: 1.25rem 1rem 3rem 1rem;
    }
    
    .welcome-banner p {
        font-size: 1.15rem;
    }
    
    .category-title {
        font-size: 1.5rem;
    }
    
    .cards-container {
        /* On small mobiles, cards will stretch 1fr, or 2 cols if wide enough */
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .card-cover {
        height: 90px;
        font-size: 2.25rem;
    }
    
    .card-body {
        padding: 1rem;
        gap: 0.5rem;
    }
    
    .card-title {
        font-size: 1.05rem;
    }
    
    .card-desc {
        font-size: 0.95rem;
    }
    
    .btn-open {
        height: 44px;
        font-size: 1.05rem;
        margin-top: 0.25rem;
    }
}