/* ========================================
   Proximal Cloud - Shared Styles
   Professional, Clean Design System
   ======================================== */

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

:root {
    /* Color Palette - Minimal & Professional */
    --color-primary: #0066CC;
    --color-primary-dark: #004C99;
    --color-secondary: #6B7280;
    --color-accent: #10B981;
    --color-text-dark: #1F2937;
    --color-text-medium: #4B5563;
    --color-text-light: #6B7280;
    --color-bg-white: #FFFFFF;
    --color-bg-light: #F9FAFB;
    --color-bg-gray: #F3F4F6;
    --color-border: #E5E7EB;
    --color-shadow: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout */
    --container-max: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--color-text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* ========== Layout ========== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-3xl) 0;
}

/* ========== Navigation ========== */
.navbar {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

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

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--color-text-medium);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.nav-links a:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-light);
}

/* ========== Buttons ========== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

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

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

/* ========== Cards ========== */
.card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-4px);
}

.card-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

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

.card-text {
    color: var(--color-text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========== Hero Section ========== */
.hero {
    background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg-white) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
}

.hero .lead {
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

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

/* ========== Image Showcase ========== */
.image-showcase {
    background-color: var(--color-bg-white);
    padding: var(--spacing-2xl) 0;
}

.showcase-image {
    width: 100%;
    max-width: 1000px;
    height: auto;
    margin: 0 auto;
    display: block;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--color-text-medium);
    font-weight: 500;
}

/* ========== Features Grid ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

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

.feature-card:hover {
    box-shadow: 0 8px 24px var(--color-shadow);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-light);
    border-radius: 12px;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--color-primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* ========== Section Headers ========== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-subtitle {
    color: var(--color-text-medium);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
}

/* ========== Footer ========== */
.footer {
    background-color: var(--color-text-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
    color: #9CA3AF;
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-section a {
    text-decoration: none;
    display: block;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #9CA3AF;
    font-size: 0.875rem;
}

/* ========== CTA Section ========== */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.cta h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

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

.cta .btn-primary:hover {
    background-color: var(--color-bg-light);
    transform: translateY(-2px);
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero h1 { font-size: 2.5rem; }
    
    .nav-links {
        display: none;
    }
    
    .features-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* ========== Utility Classes ========== */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }