/* SafeSign Website Styles */
/* Modern blue color palette */

:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --text-dark: #1e293b;
    --text-medium: #475569;
    --text-light: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-dark: #0f172a;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.navbar-brand svg {
    width: 32px;
    height: 32px;
}

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

.navbar-menu a {
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-menu a:hover {
    color: var(--primary-color);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.navbar-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: calc(var(--spacing-2xl) + var(--spacing-xl)) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, var(--bg-light) 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero-text h1 span {
    color: var(--primary-color);
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    gap: var(--spacing-xs);
}

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

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

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

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image svg {
    width: 100%;
    max-width: 500px;
    height: auto;
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

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

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.section-title p {
    font-size: 1.125rem;
    color: var(--text-medium);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-medium);
    font-size: 1rem;
}

/* How It Works Section */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

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

.step-card {
    text-align: center;
    position: relative;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.step-card p {
    color: var(--text-medium);
}

/* Use Cases Section */
.use-cases {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.use-case-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
}

.use-case-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.use-case-card p {
    color: var(--text-medium);
    font-size: 0.9375rem;
}

/* Trust Section */
.trust {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
}

.trust .section-title h2,
.trust .section-title p {
    color: white;
}

.trust-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.trust-feature {
    text-align: center;
}

.trust-feature svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
}

.trust-feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.trust-feature p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
}

/* Pricing Section */
.pricing {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.pricing-info {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.pricing-info p {
    color: var(--text-medium);
    font-size: 1.125rem;
}

.pricing-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.pricing-feature {
    text-align: center;
    padding: var(--spacing-lg);
}

.pricing-feature svg {
    width: 40px;
    height: 40px;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.pricing-feature h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.pricing-feature p {
    color: var(--text-medium);
    font-size: 0.9375rem;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: white;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--secondary-color);
}

.footer-bottom p {
    font-size: 0.875rem;
}

/* Legal Pages Styles */
.legal-page {
    padding: calc(var(--spacing-xl) + var(--spacing-lg)) 0 var(--spacing-2xl);
    background-color: var(--bg-light);
}

.legal-page .container {
    max-width: 800px;
}

.legal-page h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

.legal-page .last-updated {
    color: var(--text-medium);
    font-style: italic;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.legal-page h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.legal-page h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.legal-page p {
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
}

.legal-page ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
}

.legal-page li {
    margin-bottom: var(--spacing-xs);
}

.legal-page strong {
    color: var(--text-dark);
}

.legal-page .back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-fast);
}

.legal-page .back-link:hover {
    color: var(--primary-dark);
}

/* Important notice */
.important-notice {
    background-color: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-sm);
}

.important-notice strong {
    color: var(--warning-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.2s;
}

.fade-in-delay-2 {
    animation-delay: 0.4s;
}

.fade-in-delay-3 {
    animation-delay: 0.6s;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .navbar-toggle {
        display: block;
    }
    
    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-md);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }
    
    .navbar-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 640px) {
    html {
        font-size: 14px;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1.125rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-cta {
        flex-direction: column;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero,
    .features,
    .how-it-works,
    .use-cases,
    .trust,
    .pricing,
    .footer {
        display: none;
    }
    
    .legal-page {
        background-color: white;
        padding: 0;
    }
    
    .back-link {
        display: none;
    }
}