/* ============================================================================
   1Robot AI - Website Styles
   Professional AI consulting design for small/medium businesses
   ============================================================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #0A2463;
    --color-secondary: #3E92CC;
    --color-accent: #F72585;
    --color-dark: #1A1A1A;
    --color-text: #2D2D2D;
    --color-text-light: #6B6B6B;
    --color-bg: #FFFFFF;
    --color-bg-light: #F7F9FB;
    --color-bg-dark: #0F1419;
    
    /* Typography */
    --font-display: 'Libre Baskerville', serif;
    --font-body: 'Source Sans Pro', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Layout */
    --container-width: 1200px;
    --border-radius: 8px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================================================
   Base Styles
   ============================================================================ */

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

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

body {
    font-family: var(--font-body);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }

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

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

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================================================
   Navigation
   ============================================================================ */

.nav {
    background: var(--color-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.logo img {
    width: 200px;
    height: auto;
}

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

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

.nav-link {
    font-weight: 600;
    color: var(--color-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: none;
    border: none;
    font-size: 1.125rem;
    font-family: var(--font-body);
    cursor: pointer;
}

.nav-link:hover {
    background: var(--color-bg-light);
    color: var(--color-secondary);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle::after {
    content: ' ▾';
    font-size: 0.875rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-bg);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-radius: var(--border-radius);
    list-style: none;
    padding: var(--spacing-xs);
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm);
    color: var(--color-text);
    border-radius: var(--border-radius);
    font-weight: 500;
}

.dropdown-menu a:hover {
    background: var(--color-bg-light);
    color: var(--color-secondary);
}

/* ============================================================================
   Hero Section
   ============================================================================ */

.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-bg);
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40"><circle cx="2" cy="2" r="2" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: 3.5rem;
    color: var(--color-bg);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255,255,255,0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-display);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

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

/* ============================================================================
   Buttons
   ============================================================================ */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-body);
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: #D1146B;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(247, 37, 133, 0.3);
}

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

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

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

/* ============================================================================
   Sections
   ============================================================================ */

.section {
    padding: var(--spacing-2xl) 0;
}

.section-light {
    background: var(--color-bg-light);
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-bg);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--color-bg);
}

.section-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.section-intro {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

.section-dark .section-intro {
    color: rgba(255,255,255,0.8);
}

/* ============================================================================
   Features Grid
   ============================================================================ */

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

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

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

/* ============================================================================
   Services List
   ============================================================================ */

.services-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.service-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-secondary);
    transition: var(--transition);
}

.service-item:hover {
    border-left-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.service-number {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--color-secondary);
    min-width: 60px;
}

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

.service-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-secondary);
}

.service-link:hover {
    color: var(--color-accent);
}

/* ============================================================================
   Two Column Layout
   ============================================================================ */

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.col-content .lead {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.checklist {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.checklist li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ============================================================================
   Results Grid
   ============================================================================ */

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.result-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255,255,255,0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255,255,255,0.1);
}

.result-stat {
    font-size: 4rem;
    font-weight: 700;
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

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

.result-card p {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
}

/* ============================================================================
   CTA Section
   ============================================================================ */

.section-cta {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    color: var(--color-bg);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-content h2 {
    color: var(--color-bg);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

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

/* ============================================================================
   Footer
   ============================================================================ */

.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-col h4 {
    color: var(--color-bg);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

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

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

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

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.9375rem;
}

/* ============================================================================
   Responsive Design
   ============================================================================ */

@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title { font-size: 2.75rem; }
    
    .features-grid,
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .two-col {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-md);
        display: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .service-item {
        flex-direction: column;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   Animations
   ============================================================================ */

@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .service-item,
    .result-card {
        animation: fadeInUp 0.6s ease-out;
    }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}