/**
 * YesMonk Website - Main Stylesheet
 * Organized following SOLID principles and best practices
 */

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

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

/* ============================================================================
   CSS VARIABLES (Design Tokens)
   ============================================================================ */

:root {
    /* Colors - Background */
    --bg-primary: #0a0a0a;
    --bg-secondary: #0f1117;
    --bg-tertiary: #1a1d26;
    
    /* Colors - Text */
    --text-primary: #ffffff;
    --text-secondary: #a0a8c0;
    --text-tertiary: #6b7280;
    
    /* Colors - Accent (Based on logo #215096) */
    --accent-primary: #215096;
    --accent-secondary: #2d5fb8;
    --accent-light: #3a6fda;
    --accent-gradient: linear-gradient(135deg, #215096 0%, #2d5fb8 50%, #3a6fda 100%);
    --accent-gradient-subtle: linear-gradient(135deg, rgba(33, 80, 150, 0.1) 0%, rgba(45, 95, 184, 0.05) 100%);
    
    /* Colors - UI Elements */
    --border-color: #1e2330;
    --card-bg: rgba(33, 80, 150, 0.05);
    --card-border: rgba(33, 80, 150, 0.15);
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 120px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.6s;
}

/* ============================================================================
   BASE ELEMENTS
   ============================================================================ */

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================================================
   NAVIGATION
   ============================================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-image {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
}


.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* ============================================================================
   BUTTONS (Reusable Components)
   ============================================================================ */

.btn-primary,
.btn-secondary {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    color: var(--text-primary);
    border-color: var(--text-tertiary);
}

.btn-primary-large,
.btn-secondary-large {
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
}

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

.btn-primary-large:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(33, 80, 150, 0.3);
}

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

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

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-md) 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(33, 80, 150, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    z-index: 1;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, #215096 0%, #2d5fb8 30%, #3a6fda 60%, #4d8ef5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
    display: inline-block;
}

@keyframes gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

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

.stat {
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============================================================================
   COMMON SECTION STYLES (Reusable Patterns)
   ============================================================================ */

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
}

/* ============================================================================
   SERVICES SECTION
   ============================================================================ */

.features {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--bg-secondary);
}

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

.feature-card {
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    background: rgba(33, 80, 150, 0.08);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* ============================================================================
   ABOUT SECTION
   ============================================================================ */

.about-section {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--bg-primary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
}

.about-subtitle {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.about-paragraph {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.value-item {
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    text-align: center;
    transition: all var(--transition-normal);
}

.value-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
    background: rgba(33, 80, 150, 0.08);
}

.value-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.value-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.value-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

/* ============================================================================
   PORTFOLIO SECTION
   ============================================================================ */

.portfolio-section {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--bg-secondary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.portfolio-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px rgba(33, 80, 150, 0.15);
}

.portfolio-image {
    width: 100%;
    height: 200px;
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(33, 80, 150, 0.15) 0%, rgba(45, 95, 184, 0.1) 100%);
}

.portfolio-icon {
    font-size: 64px;
    opacity: 0.6;
}

.portfolio-content {
    padding: var(--spacing-md);
}

.portfolio-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.portfolio-category {
    font-size: 14px;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portfolio-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    padding: 6px 12px;
    background: rgba(33, 80, 150, 0.12);
    border: 1px solid rgba(33, 80, 150, 0.25);
    border-radius: 6px;
    font-size: 12px;
    color: var(--accent-primary);
    font-weight: 500;
}

/* ============================================================================
   CTA SECTION
   ============================================================================ */

.cta-section {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--bg-primary);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.cta-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    padding: 80px var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-image {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-heading {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 14px;
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-description {
        font-size: 18px;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

    .section-title,
    .cta-title {
        font-size: 36px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .about-values {
        grid-template-columns: 1fr;
    }

    .about-paragraph {
        text-align: center;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

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