/* LedgerNest Canada - Family Budgeting Blog */
:root {
    /* Design System Colors */
    --deep-navy: #0B1220;
    --mint: #34D399;
    --sky: #93C5FD;
    --graphite: #1A2230;
    --soft-gray: #D1D5DB;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--mint) 0%, var(--sky) 100%);
    --gradient-dark: linear-gradient(135deg, var(--deep-navy) 0%, var(--graphite) 100%);
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-size-sm: 1rem;
    --font-size-md: 1.25rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2.25rem;
    --font-size-2xl: 3.1rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Shadows */
    --shadow-card: 0 12px 28px rgba(0,0,0,.18);
    --shadow-soft: 0 4px 12px rgba(0,0,0,.12);
    
    /* Transitions */
    --transition-smooth: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-system);
    background-color: var(--deep-navy);
    color: var(--soft-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Ledger Grid Background Animation */
.ledger-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--deep-navy);
    z-index: -1;
    opacity: 0.03;
    background-image: 
        repeating-linear-gradient(90deg, transparent, transparent 2px, var(--mint) 2px, var(--mint) 2px),
        repeating-linear-gradient(0deg, transparent, transparent 2px, var(--mint) 2px, var(--mint) 2px);
    animation: ledgerMove 20s linear infinite;
}

@keyframes ledgerMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(2px, 2px); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-sm);
    color: rgba(209, 213, 219, 0.9);
}

/* Links */
a {
    color: var(--mint);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--sky);
    transform: translateY(-1px);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Header */
.header {
    background: rgba(11, 18, 32, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(52, 211, 153, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.header.scrolled {
    background: rgba(11, 18, 32, 0.98);
    box-shadow: var(--shadow-soft);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
}

.logo {
    font-size: var(--font-size-lg);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--soft-gray);
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 6px;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--mint);
    background: rgba(52, 211, 153, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--space-xs);
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--mint);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
    padding: var(--space-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(52, 211, 153, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--mint), var(--sky));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: var(--font-size-md);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    color: rgba(209, 213, 219, 0.8);
}

.hero-image {
    max-width: 600px;
    margin: var(--space-lg) auto;
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition-bounce);
    font-size: var(--font-size-sm);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--deep-navy);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.btn-secondary {
    background: transparent;
    color: var(--mint);
    border: 2px solid var(--mint);
}

.btn-secondary:hover {
    background: var(--mint);
    color: var(--deep-navy);
}

/* Card Components */
.card {
    background: rgba(26, 34, 48, 0.8);
    border-radius: 16px;
    padding: var(--space-lg);
    box-shadow: var(--shadow-card);
    transition: var(--transition-bounce);
    border: 1px solid rgba(52, 211, 153, 0.1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    border-color: rgba(52, 211, 153, 0.3);
}

.card:hover::before {
    opacity: 1;
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: var(--space-sm);
}

.card-title {
    font-size: var(--font-size-md);
    color: var(--mint);
    margin-bottom: var(--space-xs);
}

.card-text {
    color: rgba(209, 213, 219, 0.8);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* Sections */
.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-size: var(--font-size-xl);
    color: var(--mint);
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    color: rgba(209, 213, 219, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

/* Stats Section */
.stats {
    background: rgba(26, 34, 48, 0.6);
    border-radius: 20px;
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--mint);
    display: block;
    margin-bottom: var(--space-xs);
}

.stat-label {
    color: rgba(209, 213, 219, 0.7);
    font-size: var(--font-size-sm);
}

/* Features Section */
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-content h3 {
    color: var(--mint);
    margin-bottom: var(--space-xs);
}

.feature-content p {
    color: rgba(209, 213, 219, 0.8);
    font-size: var(--font-size-sm);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-template {
    background: rgba(147, 197, 253, 0.2);
    color: var(--sky);
}

.badge-monthly {
    background: rgba(52, 211, 153, 0.2);
    color: var(--mint);
}

.badge-planner {
    background: rgba(147, 197, 253, 0.2);
    color: var(--sky);
}

/* Newsletter */
.newsletter {
    background: var(--gradient-dark);
    border-radius: 20px;
    padding: var(--space-xl);
    text-align: center;
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    max-width: 400px;
    margin: var(--space-lg) auto 0;
}

.newsletter-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(52, 211, 153, 0.3);
    border-radius: 12px;
    background: rgba(26, 34, 48, 0.8);
    color: var(--soft-gray);
    font-size: var(--font-size-sm);
    transition: var(--transition-smooth);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--mint);
    box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.1);
}

.newsletter-input::placeholder {
    color: rgba(209, 213, 219, 0.5);
}

/* Reviews */
.reviews {
    background: rgba(26, 34, 48, 0.4);
    border-radius: 20px;
    padding: var(--space-xl);
}

.review-card {
    background: rgba(11, 18, 32, 0.6);
    border-radius: 16px;
    padding: var(--space-lg);
    border: 1px solid rgba(52, 211, 153, 0.1);
}

.review-text {
    font-style: italic;
    margin-bottom: var(--space-sm);
    color: rgba(209, 213, 219, 0.9);
}

.review-author {
    color: var(--mint);
    font-weight: 600;
}

/* Footer */
.footer {
    background: rgba(11, 18, 32, 0.95);
    border-top: 1px solid rgba(52, 211, 153, 0.1);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.footer-section h3 {
    color: var(--mint);
    margin-bottom: var(--space-sm);
}

.footer-section p,
.footer-section li {
    color: rgba(209, 213, 219, 0.8);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
}

.footer-section ul {
    list-style: none;
}

.footer-section a:hover {
    color: var(--sky);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(52, 211, 153, 0.1);
    color: rgba(209, 213, 219, 0.6);
}

/* Category Pages */
.category-header {
    background: var(--gradient-dark);
    padding: var(--space-2xl) 0;
    text-align: center;
    margin-top: 80px;
}

.category-title {
    font-size: var(--font-size-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.category-description {
    font-size: var(--font-size-md);
    color: rgba(209, 213, 219, 0.8);
    max-width: 800px;
    margin: var(--space-md) auto 0;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-bounce);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(11, 18, 32, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--space-xl);
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero {
        padding: var(--space-xl) 0;
    }
    
    .section {
        padding: var(--space-xl) 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--deep-navy);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

.preloader-content {
    text-align: center;
}

.ledger-ticks {
    display: flex;
    gap: 4px;
    margin-bottom: var(--space-md);
}

.tick {
    width: 3px;
    height: 30px;
    background: var(--mint);
    border-radius: 2px;
    animation: tick 1.5s ease-in-out infinite;
}

.tick:nth-child(2) { animation-delay: 0.2s; }
.tick:nth-child(3) { animation-delay: 0.4s; }
.tick:nth-child(4) { animation-delay: 0.6s; }

@keyframes tick {
    0%, 40%, 100% { transform: scaleY(1); }
    20% { transform: scaleY(1.5); }
}

.preloader-text {
    color: var(--mint);
    font-weight: 600;
}