/* ========================================
   MINEPRO - CRYPTO MINING SOLUTIONS
   Gunmetal Gray + Neon Green Theme
======================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Roboto+Mono:wght@400;500;600;700&display=swap');

:root {
    /* Primary Colors - Gunmetal + Green */
    --gunmetal-dark: #1c2127;
    --gunmetal: #2d333b;
    --gunmetal-light: #3d444d;
    --gunmetal-lighter: #4d5560;
    
    --green-primary: #00ff88;
    --green-dark: #00cc6a;
    --green-glow: rgba(0, 255, 136, 0.25);
    
    /* Neutral Colors */
    --gray-50: #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    
    /* Accent Colors */
    --yellow: #ffcc00;
    --orange: #ff6b35;
    --blue: #00a8ff;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b8bfc7;
    --text-muted: #8b95a1;
    
    /* Borders & Dividers */
    --border-color: #3d444d;
    --divider-color: #2d333b;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-green: 0 0 20px var(--green-glow);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Roboto Mono', 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ========================================
   GLOBAL RESET
======================================== */

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

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

body {
    font-family: var(--font-primary);
    background: var(--gunmetal-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--green-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--green-dark);
}

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

/* ========================================
   TYPOGRAPHY
======================================== */

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

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 600;
}

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

.text-green {
    color: var(--green-primary);
}

.text-mono {
    font-family: var(--font-mono);
}

/* ========================================
   BUTTONS
======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    border-radius: 2px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--green-primary);
    color: var(--gunmetal-dark);
    box-shadow: var(--shadow-green);
}

.btn-primary:hover {
    background: var(--green-dark);
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--green-glow);
    color: var(--gunmetal-dark);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--green-primary);
    color: var(--green-primary);
}

.btn-outline:hover {
    background: var(--green-primary);
    color: var(--gunmetal-dark);
}

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

.btn-secondary:hover {
    background: var(--gunmetal-lighter);
    border-color: var(--green-primary);
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.85rem;
}

/* ========================================
   HEADER TOP BAR
======================================== */

.header-top {
    background: var(--gunmetal);
    border-bottom: 1px solid var(--border-color);
    padding: 0.625rem 0;
    font-size: 0.85rem;
}

.header-top-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-top-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-top-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.header-top-item i {
    color: var(--green-primary);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green-primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========================================
   MAIN HEADER
======================================== */

.site-header {
    position: sticky;
    top: 0;
    background: var(--gunmetal-dark);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--green-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--gunmetal-dark);
    border-radius: 2px;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green-primary);
    transition: var(--transition-base);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--green-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 26px;
    height: 2px;
    background: var(--green-primary);
    transition: var(--transition-base);
    border-radius: 2px;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================
   INTRO SECTION - COMPACT
======================================== */

.intro-section {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background: linear-gradient(180deg, var(--gunmetal) 0%, var(--gunmetal-dark) 100%);
    border-bottom: 1px solid var(--border-color);
}

.intro-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.intro-content {
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.intro-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 20px;
    color: var(--green-primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.intro-content h1 {
    margin-bottom: var(--spacing-md);
}

.intro-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.intro-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   METRICS STRIP
======================================== */

.metrics-strip {
    background: var(--gunmetal);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.metrics-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.metric-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--green-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-sublabel {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ========================================
   ALTERNATING CONTENT SECTIONS
======================================== */

.content-section {
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.content-section:nth-child(even) {
    background: var(--gunmetal);
}

.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.content-section.reverse .content-container {
    direction: rtl;
}

.content-section.reverse .content-text,
.content-section.reverse .content-visual {
    direction: ltr;
}

.content-text h2 {
    margin-bottom: var(--spacing-md);
}

.content-text p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

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

.content-list li {
    display: flex;
    align-items: start;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.content-list li:last-child {
    border-bottom: none;
}

.content-list i {
    color: var(--green-primary);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.content-visual img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    border: 1px solid var(--border-color);
}

/* ========================================
   PROGRESS INDICATORS & BARS
======================================== */

.efficiency-bars {
    margin: var(--spacing-lg) 0;
}

.efficiency-item {
    margin-bottom: var(--spacing-md);
}

.efficiency-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.efficiency-label {
    font-weight: 600;
    color: var(--text-primary);
}

.efficiency-value {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--green-primary);
}

.progress-bar {
    height: 8px;
    background: var(--gunmetal-light);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green-dark), var(--green-primary));
    border-radius: 4px;
    transition: width 1s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ========================================
   STATS GRID
======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.stat-card {
    background: var(--gunmetal-light);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: 2px;
    transition: var(--transition-base);
}

.stat-card:hover {
    border-color: var(--green-primary);
    transform: translateY(-4px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--green-primary);
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   TRUST / SOCIAL PROOF SECTION
======================================== */

.trust-section {
    padding: var(--spacing-xl) 0;
    background: var(--gunmetal);
    border-bottom: 1px solid var(--border-color);
}

.trust-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.trust-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

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

.trust-stat {
    padding: var(--spacing-md);
}

.trust-number {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--green-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.trust-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

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

.cta-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--gunmetal-dark) 0%, var(--gunmetal) 50%, var(--gunmetal-dark) 100%);
    border-top: 2px solid var(--green-primary);
    border-bottom: 2px solid var(--green-primary);
    position: relative;
}

.cta-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.cta-section h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   FLOATING CTA BUTTON
======================================== */

.floating-cta {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    z-index: 999;
    transition: var(--transition-base);
}

.floating-cta.hidden {
    transform: translateY(200%);
}

.floating-cta-btn {
    background: var(--green-primary);
    color: var(--gunmetal-dark);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 20px var(--green-glow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.floating-cta-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px var(--green-glow);
}

.floating-cta-icon {
    font-size: 1.25rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.floating-cta-text {
    white-space: nowrap;
}

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

.site-footer {
    background: var(--gunmetal);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    padding-bottom: 7.4rem;
}

.footer-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    color: var(--green-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.footer-contact-item i {
    color: var(--green-primary);
    width: 20px;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--green-primary);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gunmetal-light);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-base);
    border-radius: 2px;
}

.social-link:hover {
    background: var(--green-primary);
    border-color: var(--green-primary);
    color: var(--gunmetal-dark);
}

/* ========================================
   FORMS
======================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.875rem;
    background: var(--gunmetal-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    border-radius: 2px;
    transition: var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--green-primary);
    box-shadow: 0 0 0 3px var(--green-glow);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* ========================================
   UTILITY CLASSES
======================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0 !important; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ========================================
   ANIMATIONS
======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE - MOBILE FIRST
======================================== */

@media (max-width: 1024px) {
    .content-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .content-section.reverse .content-container {
        direction: ltr;
    }
    
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-2xl: 4rem;
    }
    
    .header-top-left {
        gap: 1rem;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .header-actions .btn {
        display: none;
    }
    
    .intro-section {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }
    
    .intro-actions {
        flex-direction: column;
    }
    
    .intro-actions .btn {
        width: 100%;
    }
    
    .metrics-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding-bottom: 100px;
    }
    
    .floating-cta {
        right: 50%;
        transform: translateX(50%);
        bottom: 1rem;
    }
    
    .floating-cta.hidden {
        transform: translateX(50%) translateY(180%);
    }
}

@media (max-width: 480px) {
    .header-top-container {
        justify-content: center;
        text-align: center;
    }
    
    .header-top-left {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .metrics-container {
        grid-template-columns: 1fr;
    }
    
    .metric-value {
        font-size: 2rem;
    }

    .site-footer {
        padding-bottom: 2rem;
    }
}