:root {
    --primary: #22c55e;
    --primary-hover: #16a34a;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --border-light: rgba(0, 0, 0, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.9);
    --neon-gradient: linear-gradient(135deg, #10b981 0%, #34d399 50%, #6ee7b7 100%);
    --floating-shadow: 0 30px 60px -12px rgba(16, 185, 129, 0.3);
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(34, 197, 94, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 197, 94, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
}

.floating-shapes {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(16, 185, 129, 0.05));
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary);
}

.logo svg {
    width: 32px;
    height: 32px;
}

.logo span {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

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

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.btn-signin {
    padding: 12px 24px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-signin:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.3);
}

/* Hero Section */
.hero-section {
    padding: 100px 0;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(34, 197, 94, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 32px;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.highlight {
    background: var(--neon-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 60px;
    line-height: 1.6;
}

/* Role Cards */
.role-cards {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 100px;
}

.card {
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    padding: 40px 32px;
    border-radius: 24px;
    width: 380px;
    box-shadow: var(--card-shadow);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(34, 197, 94, 0.1), transparent);
    transition: left 0.6s;
}

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

.card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--floating-shadow);
    border-color: rgba(34, 197, 94, 0.3);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s ease;
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(-5deg);
}

.customer-icon { 
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    color: #16a34a;
}

.vendor-icon { 
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    color: #059669;
}

.card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.neon-text {
    background: var(--neon-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.5;
}

.card-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.card-features span {
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.btn-card-action {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-card-action:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.card-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 50%;
    font-weight: 600;
    color: var(--text-muted);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-desc {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 60px;
    color: var(--text-dark);
}

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

.feature-card {
    text-align: center;
    padding: 40px 24px;
    background: #f8fafc;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: white;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transform: translateY(-8px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--neon-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Chat Button */
.chat-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    color: white;
}

.chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(34, 197, 94, 0.5);
}

.chat-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container { padding: 0 20px; }
    .hero-title { font-size: 64px; }
    .role-cards { gap: 30px; }
}

@media (max-width: 992px) {
    .nav-links, .nav-actions { display: none; }
    .hamburger { display: flex !important; }
    .hero-title { font-size: 56px; }
    .role-cards { flex-direction: column; gap: 24px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero-section { padding: 60px 0; }
    .hero-title { font-size: 48px; line-height: 1.2; }
    .hero-subtitle { font-size: 18px; margin-bottom: 40px; }
    .card { width: 100%; max-width: 400px; padding: 32px 24px; }
    .section-title { font-size: 36px; }
    .features-section { padding: 60px 0; }
    .chat-button { bottom: 20px; right: 20px; width: 50px; height: 50px; }
}

@media (max-width: 576px) {
    .container { padding: 0 16px; }
    .nav-content { height: 70px; }
    .logo span { font-size: 24px; }
    .hero-title { font-size: 40px; }
    .hero-subtitle { font-size: 16px; }
    .hero-badge { font-size: 12px; padding: 6px 16px; }
    .card { padding: 24px 20px; }
    .card-icon { width: 60px; height: 60px; }
    .stats-grid { grid-template-columns: 1fr; gap: 16px; }
    .stat-num { font-size: 28px; }
    .section-title { font-size: 28px; }
    .feature-card { padding: 24px 16px; }
    .feature-icon { width: 60px; height: 60px; }
}

@media (max-width: 400px) {
    .hero-title { font-size: 32px; }
    .card { margin: 0 8px; }
    .btn-card-action { padding: 12px; font-size: 14px; }
}

/* Mobile Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: 0.3s;
    opacity: 0.7;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    opacity: 0.7;
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
    opacity: 0.7;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--border-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    z-index: 999;
}

.mobile-menu.active { 
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-links {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 0;
    text-align: center;
}

.mobile-nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
    transition: color 0.3s ease;
    text-align: center;
}

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

.mobile-nav-links a:last-child {
    border-bottom: none;
}

.mobile-nav-actions {
    padding: 0 20px 20px;
    text-align: center;
}

.mobile-nav-actions .btn-signin {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}