/* ===================================
   nVision Ready - Website Styles
   =================================== */

/* CSS Variables - nVision Ready Brand */
:root {
    /* Brand Colors */
    --deep-blue: #1E3A8A;
    --bright-teal: #14B8A6;
    --warm-amber: #F59E0B;
    --purple-accent: #A855F7;
    --pink-accent: #EC4899;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --border-gray: #E5E7EB;
    --bg-light: #F9FAFB;
    --bg-blue-light: #EFF6FF;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: 300ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

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

/* Navigation */
header {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-blue);
}

nav ul {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

nav a {
    font-weight: 600;
    color: var(--text-dark);
    transition: color var(--transition);
}

nav a:hover {
    color: var(--bright-teal);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--bright-teal);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #0D9488;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--deep-blue);
    color: var(--white);
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--bg-blue-light) 0%, var(--white) 100%);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--deep-blue);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.hero-note {
    font-size: 0.875rem;
    color: var(--text-light);
}

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

.phone-frame {
    position: relative;
    max-width: 280px;
    filter: drop-shadow(0 20px 40px rgba(30, 58, 138, 0.3));
    animation: float 3s ease-in-out infinite;
}

.phone-frame img {
    max-width: 280px;
    max-height: 600px;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

section h2 {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--deep-blue);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Value Proposition Section */
#value-prop {
    background: var(--white);
}

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

.value-card {
    padding: var(--spacing-md);
    background: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    text-align: center;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--bright-teal);
}

.value-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.value-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--deep-blue);
}

.value-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Features Section */
#features {
    background: var(--bg-light);
}

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

.feature {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    text-align: center;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.feature h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--deep-blue);
}

.feature p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* How It Works Section */
#how-it-works {
    background: var(--white);
}

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

.step {
    text-align: center;
    padding: var(--spacing-md);
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: var(--bright-teal);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--deep-blue);
}

.step p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Readiness Score Section */
#readiness-score {
    background: var(--bg-blue-light);
}

.score-dimensions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.dimension {
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition);
}

.dimension:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.dimension-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.dimension h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--deep-blue);
}

.dimension p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Download Section */
#download {
    background: var(--white);
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.download-card {
    padding: var(--spacing-md);
    background: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--bright-teal);
}

.pwa-card {
    background: linear-gradient(135deg, var(--bright-teal), #0D9488);
    color: var(--white);
    border: none;
}

.pwa-card h3,
.pwa-card p {
    color: var(--white);
}

.download-icon {
    font-size: 3rem;
}

.download-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-blue);
}

.download-card p {
    color: var(--text-light);
}

.download-badge {
    background: var(--warm-amber);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
}

.store-badges {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.coming-soon-badge {
    background: var(--border-gray);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Email Signup */
.email-signup {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.email-signup h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--deep-blue);
}

#signup-form {
    display: flex;
    gap: var(--spacing-xs);
    max-width: 500px;
    margin: 0 auto;
}

#signup-form input[type="email"] {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: border-color var(--transition);
}

#signup-form input[type="email"]:focus {
    outline: none;
    border-color: var(--bright-teal);
}

#signup-form button {
    padding: 1rem 2rem;
    background: var(--bright-teal);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

#signup-form button:hover {
    background: #0D9488;
    transform: translateY(-2px);
}

#form-message {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
}

#form-message.success {
    color: var(--bright-teal);
}

#form-message.error {
    color: #EF4444;
}

/* Footer */
footer {
    background: var(--deep-blue);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    nav ul {
        gap: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
    }
    
    #signup-form {
        flex-direction: column;
    }
    
    .feature-grid,
    .value-grid,
    .steps,
    .score-dimensions,
    .download-options {
        grid-template-columns: 1fr;
    }
    
    nav ul li:not(:last-child) {
        display: none;
    }
}