/* EliteBidders Landing Page - Black, Green & White Theme */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: #000000;
    overflow-x: hidden;
}

/* Color Variables */
:root {
    --primary-black: #000000;
    --secondary-black: #0a0a0a;
    --accent-black: #1a1a1a;
    --primary-green: #00ff88;
    --secondary-green: #00cc6a;
    --accent-green: #00e676;
    --primary-white: #ffffff;
    --secondary-white: #f0f0f0;
    --text-gray: #cccccc;
    --text-light-gray: #999999;
    --border-gray: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.2);
}

/* Grainy Background Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 255, 136, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(255, 255, 255, 0.01) 0%, transparent 50%),
        radial-gradient(circle at 90% 30%, rgba(0, 255, 136, 0.015) 0%, transparent 50%);
    background-size: 180px 180px, 250px 250px, 120px 120px, 200px 200px, 160px 160px;
    animation: grain 12s steps(15) infinite;
    pointer-events: none;
    z-index: -1;
    opacity: 0.8;
}

@keyframes grain {
    0%, 100% { 
        transform: translate(0, 0) scale(1); 
        opacity: 0.8;
    }
    10% { 
        transform: translate(-8%, -12%) scale(1.02); 
        opacity: 0.9;
    }
    20% { 
        transform: translate(-18%, 8%) scale(0.98); 
        opacity: 0.7;
    }
    30% { 
        transform: translate(12%, -28%) scale(1.01); 
        opacity: 0.85;
    }
    40% { 
        transform: translate(-8%, 30%) scale(0.99); 
        opacity: 0.75;
    }
    50% { 
        transform: translate(-20%, 15%) scale(1.03); 
        opacity: 0.9;
    }
    60% { 
        transform: translate(18%, 5%) scale(0.97); 
        opacity: 0.8;
    }
    70% { 
        transform: translate(5%, 20%) scale(1.02); 
        opacity: 0.85;
    }
    80% { 
        transform: translate(8%, 40%) scale(0.98); 
        opacity: 0.7;
    }
    90% { 
        transform: translate(-15%, 15%) scale(1.01); 
        opacity: 0.9;
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-gray);
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.header-left {
    flex-shrink: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-white);
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.desktop-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

@media (min-width: 769px) {
    .mobile-menu-toggle {
        display: none !important;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-green);
    transform: translateY(-2px);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.auth-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-outline {
    background: transparent;
    color: var(--primary-white);
    border: 1px solid var(--border-gray);
}

.btn-outline:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--primary-green);
    color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--primary-black);
    border: 1px solid var(--primary-green);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-green), var(--primary-green));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: #000000;
    background-attachment: fixed;
    overflow: hidden;
}


.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 100px 0 80px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-white), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(0, 255, 136, 0.8);
    }
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 30px;
    font-weight: 300;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.hero .description {
    font-size: 1.1rem;
    color: var(--text-light-gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.7s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--secondary-black);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 60px;
    background: linear-gradient(135deg, var(--primary-white), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid var(--border-gray);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: left 0.6s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-green);
    background: rgba(0, 255, 136, 0.08);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--primary-black);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.4);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: #cccccc;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: var(--primary-black);
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.01) 0%, transparent 50%);
    pointer-events: none;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    color: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.step-number::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
    transform: translate(-50%, -50%);
}

.step:hover .step-number::before {
    width: 100%;
    height: 100%;
}

.step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.4);
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.step p {
    color: #cccccc;
    line-height: 1.6;
}

/* Statistics Section */
.statistics {
    padding: 100px 0;
    background: var(--secondary-black);
    position: relative;
}

.statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-white);
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-white), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.stat-item:hover .stat-number {
    transform: scale(1.1);
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.5));
}

.stat-label {
    color: var(--text-gray);
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.stat-item:hover .stat-label {
    color: var(--primary-green);
}

/* Footer */
.footer {
    background: var(--primary-black);
    border-top: 1px solid var(--border-gray);
    padding: 60px 0 30px;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--primary-white);
    margin-bottom: 20px;
    font-size: 1.2rem;
    position: relative;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-green);
    border-radius: 1px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: var(--primary-green);
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid var(--border-gray);
    padding-top: 30px;
    text-align: center;
    color: var(--text-light-gray);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-white);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-gray);
    padding: 20px;
    animation: slideDown 0.3s ease-out;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-nav ul li a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 0;
    display: block;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-gray);
}

.mobile-nav ul li a:hover {
    color: var(--primary-green);
    padding-left: 10px;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 10px 0;
    }
    
    .header-content {
        position: relative;
        gap: 20px;
    }
    
    .desktop-nav {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .header-right {
        gap: 15px;
    }
    
    .auth-buttons {
        gap: 8px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.2rem;
    }
    
    .hero .description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn-large {
        padding: 12px 24px;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .how-it-works {
        padding: 60px 0;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .statistics {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 8px 0;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .auth-buttons {
        gap: 8px;
    }
    
    .btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .hero {
        padding: 70px 0 50px;
    }
    
    .hero h1 {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .hero .subtitle {
        font-size: 1rem;
        margin-bottom: 20px;
    }
    
    .hero .description {
        font-size: 0.9rem;
        margin-bottom: 25px;
    }
    
    .btn-large {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
    
    .features {
        padding: 50px 0;
    }
    
    .feature-card {
        padding: 25px 15px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .feature-card h3 {
        font-size: 1.2rem;
    }
    
    .feature-card p {
        font-size: 0.9rem;
    }
    
    .how-it-works {
        padding: 50px 0;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .step h3 {
        font-size: 1.1rem;
    }
    
    .step p {
        font-size: 0.9rem;
    }
    
    .statistics {
        padding: 50px 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.slide-left {
    transform: translateX(-50px);
}

.animate-on-scroll.slide-left.animated {
    transform: translateX(0);
}

.animate-on-scroll.slide-right {
    transform: translateX(50px);
}

.animate-on-scroll.slide-right.animated {
    transform: translateX(0);
}

/* Loading animations */
body:not(.loaded) .hero {
    opacity: 0;
}

body.loaded .hero {
    opacity: 1;
    transition: opacity 1s ease-out;
}

/* Button hover effects */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

/* Parallax effect for hero background */
.hero {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

@media (max-width: 768px) {
    .hero {
        background-attachment: scroll;
    }
}