/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Culori FrogVault */
    --frog-green: #2ecc71;
    --frog-dark: #27ae60;
    --leaf-light: #a3e4d7;
    --water-blue: #3498db;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #ecf0f1;
    --gray-border: #dfe6e9;
    --gray-text: #7f8c8d;
    
    /* Font */
    --font-main: 'Quicksand', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    
    /* Radius */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

body {
    font-family: var(--font-main);
    background: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

main {
    flex: 1;
}

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

/* ===== HEADER & NAV ===== */
.site-header {
    background: white;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-icon {
    font-size: 2.2rem;
}

.logo-highlight {
    color: var(--frog-green);
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--frog-green);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--frog-green);
    border-radius: 2px;
}

/* ===== HOMEPAGE HERO ===== */
.hero {
    padding: var(--space-xl) 0;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9f7ef 100%);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
    color: var(--text-dark);
}

.hero-highlight {
    color: var(--frog-green);
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    color: var(--gray-text);
}

/* ===== TOOLS GRID ===== */
.tools-section {
    padding: var(--space-xl) 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    color: var(--gray-text);
    font-size: 1.1rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.tool-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.12);
    border-color: var(--frog-green);
}

.tool-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-md);
}

.tool-title {
    font-size: 1.6rem;
    margin-bottom: var(--space-sm);
    color: var(--text-dark);
}

.tool-desc {
    color: var(--gray-text);
    margin-bottom: var(--space-md);
    flex: 1;
}

.tool-btn {
    display: inline-block;
    background: var(--frog-green);
    color: white;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    margin-top: auto;
    transition: background 0.3s;
}

.tool-btn:hover {
    background: var(--frog-dark);
}

/* ===== BLOG PREVIEW ===== */
.blog-preview {
    padding: var(--space-xl) 0;
    background: white;
    border-top: 1px solid var(--gray-border);
}

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

.blog-card {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border: 1px solid var(--gray-border);
    transition: transform 0.3s;
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-category {
    display: inline-block;
    background: var(--frog-green);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.blog-title {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--text-dark);
}

.blog-excerpt {
    color: var(--gray-text);
    margin-bottom: var(--space-md);
}

.blog-link {
    color: var(--frog-green);
    font-weight: 600;
    display: inline-block;
}

/* ===== AD PLACEHOLDERS ===== */
.ad-section {
    margin: var(--space-xl) 0;
}

.ad-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.ad-placeholder {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px dashed #adb5bd;
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.ad-label {
    color: #6c757d;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.ad-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.ad-note {
    color: #6c757d;
    font-size: 0.85rem;
    margin-top: var(--space-sm);
    font-style: italic;
}

/* ===== TOOL PAGE LAYOUT ===== */
.tool-page {
    padding: var(--space-xl) 0;
}

.tool-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

@media (max-width: 1024px) {
    .tool-layout {
        grid-template-columns: 1fr;
    }
}

/* Tool Interface */
.tool-interface {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
}

.tool-header {
    margin-bottom: var(--space-xl);
}

.tool-header h1 {
    color: var(--frog-green);
    margin-bottom: var(--space-sm);
}

/* Password Output */
.password-output {
    background: #f8f9fa;
    border: 2px solid var(--gray-border);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    font-size: 1.4rem;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
    width: 100%;
    margin-bottom: var(--space-md);
    text-align: center;
}

.btn-group {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.btn {
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-sm);
    border: none;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    flex: 1;
}

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

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

.btn-secondary {
    background: white;
    color: var(--frog-green);
    border: 2px solid var(--frog-green);
}

.btn-secondary:hover {
    background: #f0f9f4;
}

/* Options */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.option {
    background: #f8f9fa;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
}

.option label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    cursor: pointer;
}

.option input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.range-container {
    margin: var(--space-md) 0;
}

.range-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-xs);
}

.range-value {
    font-weight: 700;
    color: var(--frog-green);
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #ddd;
    outline: none;
}

/* Ad Sidebar */
.ad-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.ad-sidebar .ad-placeholder {
    min-height: 250px;
}

/* ===== BLOG PAGE ===== */
.blog-page {
    padding: var(--space-xl) 0;
}

.blog-container {
    max-width: 800px;
    margin: 0 auto;
}

.blog-post {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.blog-post h2 {
    color: var(--text-dark);
    margin-bottom: var(--space-sm);
}

.post-meta {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    display: flex;
    gap: var(--space-md);
}

.post-category {
    background: #e8f5e9;
    color: var(--frog-dark);
    padding: 0.2rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.read-more {
    color: var(--frog-green);
    font-weight: 600;
    display: inline-block;
    margin-top: var(--space-sm);
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: var(--space-xl) 0 var(--space-lg);
    margin-top: auto;
}

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

.footer-logo .logo {
    color: white;
    margin-bottom: var(--space-sm);
}

.footer-links h4 {
    color: white;
    margin-bottom: var(--space-md);
    font-size: 1.2rem;
}

.footer-links a {
    color: #b2bec3;
    display: block;
    margin-bottom: var(--space-xs);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: var(--space-lg);
    text-align: center;
    color: #718096;
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-md);
    }
    
    .tools-grid, .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .tool-layout {
        grid-template-columns: 1fr;
    }
}