/* =========================================
   1. Variables & Reset
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&family=Open+Sans:wght@400;600&display=swap');

:root {
    /* Brand Colors - Belivanis Information Systems */
    --color-primary: #0A1D33;      /* Deep Navy - Primary Logo Colour */
    --color-primary-dark: #0A2137; /* Deep Steel Navy - Secondary Navy */
    --color-secondary: #647481;    /* Muted Blue-Grey - Neutral Accent */
    --color-accent: #EFE7E1;       /* Warm Cream - Secondary Background */
    --color-action: #0A1D33;       /* Deep Navy - Primary Buttons */
    
    /* Text Colors */
    --text-main: #0A1D33;          /* Deep Navy */
    --text-light: #647481;         /* Muted Blue-Grey */
    --text-white: #ffffff;

    /* Backgrounds */
    --bg-white: #F5EFE9;           /* Bone White - Highlight Off-White */
    --bg-light: #F2EDE9;           /* Soft Cream - Primary Background */
    --bg-sage: #EFE7E1;            /* Warm Cream - Secondary Background (Replaces Sage) */
    --bg-dark: #0A1D33;            /* Deep Navy */

    /* Borders */
    --border-color: #D0D0D0;       /* Grey */

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius: 4px;          /* Sharper, more corporate radius */
    
    /* Typography */
    --font-main: 'Open Sans', sans-serif;
    --font-heading: 'Inter', sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: var(--bg-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* =========================================
   2. Utility Classes
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.section {
    padding: var(--spacing-xl) 0;
}

.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-white); }
.bg-sage { background-color: var(--bg-sage); }
.bg-accent { background-color: var(--bg-sage); } /* Map accent to sage for now */

/* =========================================
   3. Components
   ========================================= */

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-action);
    color: var(--text-white) !important;
    border-color: var(--color-action);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary) !important;
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--text-white) !important;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* =========================================
   4. Header & Navigation
   ========================================= */
.site-header {
    background-color: var(--bg-dark);
    color: var(--text-white);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.brand-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo img {
    height: 32px;
    width: auto;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-md);
    align-items: center;
}

.main-nav a {
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.95rem;
}

.main-nav a:hover {
    color: var(--color-primary);
}

.main-nav a.active {
    color: var(--color-secondary);
    font-weight: 700;
}

/* Mobile Menu Toggle (Hidden by default) */
.mobile-menu-toggle {
    display: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

@media (max-width: 768px) {
    .main-nav { 
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--bg-dark);
        padding: var(--spacing-md);
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }
    
    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .mobile-menu-toggle { display: block; }
}

/* =========================================
   5. Hero Section
   ========================================= */
.hero-section {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('../assets/background.webp');
    background-color: var(--bg-dark); /* Fallback */
    background-size: cover;
    background-position: center;
    color: var(--text-white);
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-white);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
}

/* =========================================
   6. Services Section
   ========================================= */
.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-sm) auto;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-secondary);
    transition: all 0.3s ease;
}

.card:hover .service-icon {
    background-color: var(--color-secondary);
    color: white;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

/* =========================================
   7. Pricing Tables
/* Pricing Tables */
.pricing-table {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--bg-white);
    text-align: center;
    transition: transform 0.3s ease;
}

.pricing-table:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.pricing-header {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin: var(--spacing-sm) 0;
}

.pricing-features {
    padding: var(--spacing-md);
    list-style: none;
    margin: 0;
}

.pricing-features li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.pricing-footer {
    padding: var(--spacing-md);
}

/* Pricing Card Variants */
.pricing-card-accent {
    border-top: 4px solid var(--color-secondary);
}

.pricing-card-popular {
    border-top: 4px solid var(--color-primary);
    transform: scale(1.05);
    z-index: 1;
    position: relative;
}

.pricing-card-popular:hover {
    transform: scale(1.07);
}

.popular-badge {
    background: var(--color-primary);
    color: white;
    padding: 5px 10px;
    font-size: 0.8rem;
    margin-bottom: 10px;
    border-radius: 4px;
    display: inline-block;
    font-weight: 600;
}

/* List Styles */
.list-checked {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.list-checked li {
    margin-bottom: 10px;
    padding-left: 28px;
    position: relative;
}

.list-checked li::before {
    content: "✅"; /* Could replace with SVG later */
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1rem;
}

/* Image Placeholder Pattern */
.img-placeholder {
    background-color: var(--color-accent);
    height: 300px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    background-image: radial-gradient(var(--color-secondary) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.8;
    text-align: center;
    padding: 20px;
    border: 2px dashed #ddd;
}

/* =========================================
   8. Footer
   ========================================= */
.site-footer {
    background-color: var(--bg-dark);
    color: #ccc;
    padding: var(--spacing-lg) 0;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #ccc;
}

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

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: var(--spacing-md);
    text-align: center;
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* =========================================
   9. Contact Form (Legacy Support)
   ========================================= */
.contact-form-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* =========================================
   10. Legacy Portfolio Support (Minimal)
   ========================================= */
/* Keeping minimal styles for previous-works.html compatibility if needed, 
   though ideally that page should also be updated to use the grid system. */
.portfolio-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .portfolio-grid { grid-template-columns: 1fr; }
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}
.portfolio-item img {
    width: 100%;
    height: auto;
}

/* =========================================
   11. Project Modal Styles (Legacy Support)
   ========================================= */
.overlay-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-box {
    background-color: var(--bg-white);
    padding: 40px;
    width: 90%;
    max-width: 800px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow-y: auto;
    max-height: 90vh;
}

.close-button {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
    transition: color 0.3s;
}

.close-button:hover {
    color: #666;
}

.callout-box {
    background-color: var(--bg-light);
    padding: 20px;
    margin: 20px 0;
    border-left: 5px solid var(--color-primary);
    border-radius: 5px;
}

.return-to-portfolio {
    text-align: center;
    margin-top: 30px;
}

.btn-return-portfolio {
    display: inline-block;
    background-color: var(--color-primary);
    color: white !important;
    padding: 12px 24px;
    border-radius: 5px;
    font-size: 1rem;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

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

.footer-anchored {
    background-color: var(--bg-dark);
    color: #ccc;
    padding: 20px 0;
    text-align: center;
    width: 100%;
}


/* Portfolio Overlay Styles */
.portfolio-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 20px;
    text-align: center;
}

.portfolio-item:hover .overlay {
    opacity: 1;
}

.portfolio-item .overlay h3 {
    color: var(--color-primary);
    margin-bottom: 10px;
}

/* =========================================
   12. FAQ Section (GEO Optimization)
   ========================================= */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    text-align: left;
}

.faq-item {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.faq-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .faq-grid { grid-template-columns: 1fr; }
}

/* =========================================
   13. Consent Banner
   ========================================= */
.consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    border-top: 1px solid #ddd;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    padding: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.consent-banner.visible {
    transform: translateY(0);
}

.consent-content {
    text-align: center;
    margin-bottom: 15px;
    max-width: 800px;
}

.consent-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.consent-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

.consent-actions {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

.btn-consent {
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-accept {
    background-color: var(--color-primary);
    color: white;
}

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

.btn-deny {
    background-color: transparent;
    border: 1px solid #ccc;
    color: #666;
}

.btn-deny:hover {
    background-color: #f5f5f5;
    color: #333;
}

.consent-link {
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: underline;
}

@media (min-width: 768px) {
    .consent-banner {
        flex-direction: row;
        justify-content: space-between;
        padding: 20px 40px;
    }
    
    .consent-content {
        text-align: left;
        margin-bottom: 0;
        margin-right: 20px;
    }
    
    .consent-actions {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}

/* =========================================
   14. Mobile Responsiveness Improvements
   ========================================= */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 32px;
        --spacing-xl: 48px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    /* Typography Scaling */
    h1, .hero-title { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.4rem; }
    
    /* Hero Section */
    .hero-section {
        padding: 80px 0;
        background-position: center top;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        padding: 0 10px;
    }
    
    /* Buttons Stack */
    .mt-md .btn {
        display: block;
        width: 100%;
        margin: 0 0 10px 0 !important;
    }
    
    /* Grid Adjustments */
    .grid-2, .grid-3, .grid-4 {
        gap: 30px;
    }
    
    /* Image Handling */
    .img-placeholder, img {
        height: auto;
        width: 100%;
    }
    
    /* Chatbot Position */
    .chat-toggle-btn {
        bottom: 80px; /* Move up to avoid consent banner overlap */
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .chat-window {
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        max-height: 100vh;
        z-index: 10001; /* Above everything */
    }
    
    /* Consent Banner */
    .consent-banner {
        padding: 15px;
    }
    
    .consent-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .btn-consent {
        width: 100%;
        text-align: center;
    }
}