/* ==========================================================================
   FOUNDERS CTO - BASE STYLES
   ========================================================================== */

/* Variables */
:root {
    --color-bg-dark: #070B19; /* Deep navy */
    --color-bg-surface: #0E162D;
    --color-bg-surface-light: #162040;
    
    --color-primary: #1D4ED8; /* Strong, trustworthy blue */
    --color-primary-hover: #2563EB;
    --color-accent: #38BDF8; /* Subtle metallic/bright blue accent */
    
    --color-text-main: #F8FAFC; /* White-ish */
    --color-text-muted: #94A3B8; /* Slate gray */
    
    --color-success: #10B981;
    --color-border: rgba(255, 255, 255, 0.1);
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --border-radius: 8px;
    --transition-fast: 0.2s ease-in-out;
}

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-main);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-text-main);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 6px rgba(29, 78, 216, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(29, 78, 216, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent);
}

.btn-success {
    background-color: var(--color-success);
    color: #fff;
}

/* Header & Navigation */
header {
    background-color: rgba(7, 11, 25, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

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

.nav-links a:hover {
    color: var(--color-accent);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: calc(var(--spacing-xl) + 2rem) 0 var(--spacing-xl);
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
}

.hero p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Trust Strip */
.trust-strip {
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
}

.trust-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    text-align: center;
}

.stat-item h4 {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.875rem;
    margin: 0;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.card h3 {
    margin-bottom: var(--spacing-sm);
}

.card .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-main);
    margin-bottom: var(--spacing-xs);
}

.card .recurring {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

/* Footer */
footer {
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

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

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

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

.footer-col a {
    color: var(--color-text-muted);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Utilities */
.text-center { text-align: center; }
.section-title { margin-bottom: var(--spacing-sm); }
.section-subtitle { margin-bottom: var(--spacing-lg); max-width: 600px; margin-left: auto; margin-right: auto; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.badge { display: inline-block; padding: 4px 8px; border-radius: 4px; background: rgba(56, 189, 248, 0.1); color: var(--color-accent); font-size: 0.75rem; font-weight: 600; text-transform: uppercase; margin-bottom: var(--spacing-sm); }

/* Sticky WhatsApp */
.sticky-whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    border-radius: 50px;
    padding: 12px 20px;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: none; /* Hidden by default on desktop, shown on mobile */
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: transform 0.2s;
}

.sticky-whatsapp:hover {
    transform: scale(1.05);
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-surface);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    section {
        padding: var(--spacing-md) 0;
    }
    
    .sticky-whatsapp {
        display: flex;
    }
}