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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #1e1e2e 0%, #2d3748 100%);
    min-height: 100vh;
    overflow-x: hidden;
    color: #ffffff;
}

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.1;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 1;
}

.navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(30, 30, 46, 0.9);
    backdrop-filter: blur(10px);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #6366f1;
}

.hero-content {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    text-align: center;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.desktop-access {
    margin-top: 30px;
    margin-bottom: 40px;
}

.login-card.mobile-first {
    display: none;
}

.hero-logo {
    margin-bottom: 24px;
    margin-top: 40px;
    text-align: center;
}

.logo-image {
    height: 180px;
    width: auto;
    max-width: 600px;
    object-fit: contain;
}

.highlight {
    color: #6366f1;
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.6;
}

.stats-row {
    display: flex;
    gap: 40px;
    margin: 40px 0;
    justify-content: center;
    flex-wrap: nowrap;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, background 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #6366f1;
    margin-bottom: 5px;
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.feature-card i {
    font-size: 2.5rem;
    color: #6366f1;
    margin-bottom: 20px;
}

.feature-card h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.login-card {
    background: rgba(30, 30, 50, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: #ffffff;
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: 700;
}

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

.login-form {
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
    z-index: 2;
}

.input-group input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s ease, background 0.3s ease;
    backdrop-filter: blur(10px);
}

.input-group input:focus {
    outline: none;
    border-color: #6366f1;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.input-group input:focus + i {
    color: #6366f1;
}

.input-group input[type="password"]:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.login-btn {
    width: 100%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-btn:hover {
    background: linear-gradient(135deg, #5b21b6, #6366f1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.login-btn:active {
    transform: translateY(0);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: none;
}

.main-content {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 30, 46, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.main-content.show {
    display: flex;
}

.welcome-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    max-width: 600px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.welcome-box h2 {
    color: #333;
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.welcome-box p {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.action-buttons {
    display: flex;
    gap: 20px;
    margin: 40px 0;
    justify-content: center;
    flex-wrap: wrap;
}

.main-button, .logout-button {
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.main-button {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
}

.main-button:hover {
    background: linear-gradient(135deg, #5b21b6, #6366f1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.logout-button {
    background: #f44336;
    color: white;
}

.logout-button:hover {
    background: #d32f2f;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(244, 67, 54, 0.4);
}

.features {
    margin-top: 30px;
    text-align: left;
}

.features h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.features ul {
    list-style: none;
}

.feature-item {
    padding: 10px;
    margin-bottom: 8px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 8px;
    border-left: 4px solid #6366f1;
    color: #333;
}

.upgrade-message {
    margin-top: 20px;
    padding: 15px;
    background: rgba(255, 193, 7, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(255, 193, 7, 0.3);
    color: #333;
}

.upgrade-message a {
    color: #ff9800;
    text-decoration: none;
    font-weight: 600;
}

.upgrade-message a:hover {
    text-decoration: underline;
}

.hidden {
    display: none !important;
}

@media (max-width: 1200px) {
    .hero-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
        padding: 40px 20px;
    }

    .login-card {
        max-width: 450px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .stats-row {
        gap: 20px;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .navigation {
        padding: 15px 20px;
    }

    .nav-links {
        gap: 20px;
    }

    .hero-content {
        padding: 20px 15px;
    }

    .hero-content > .login-card:not(.mobile-first) {
        display: none;
    }
    
    .hero-logo {
        margin-bottom: 15px;
        margin-top: 20px;
    }
    
    .logo-image {
        height: 120px;
        max-width: 450px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .stats-row {
        gap: 15px;
        margin: 30px 0;
        flex-direction: row;
        justify-content: center;
        flex-wrap: nowrap;
    }

    .stat-item {
        padding: 15px 25px;
        min-width: 120px;
    }

    .stat-number {
        font-size: 2rem;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 30px;
    }

    .feature-card {
        padding: 25px;
    }

    .feature-card i {
        font-size: 2rem;
    }

    .feature-card h3 {
        font-size: 1.1rem;
    }

    .login-card.mobile-first {
        display: block;
        max-width: 100%;
        margin: 20px 0;
        padding: 30px;
    }
}

@media (max-width: 480px) {
    .navigation {
        padding: 10px 15px;
    }

    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }

    .hero-content {
        padding: 15px 10px;
    }

    .hero-content > .login-card:not(.mobile-first) {
        display: none;
    }
    
    .hero-logo {
        margin-bottom: 10px;
        margin-top: 15px;
    }
    
    .logo-image {
        height: 105px;
        max-width: 360px;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }

    .stats-row {
        gap: 10px;
        margin: 25px 0;
    }

    .stat-item {
        padding: 12px 20px;
        min-width: 100px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .features-grid {
        margin-top: 25px;
    }

    .feature-card {
        padding: 20px;
    }

    .feature-card i {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }

    .feature-card h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .feature-card p {
        font-size: 0.9rem;
    }

    .login-card.mobile-first {
        padding: 25px;
        margin: 15px 0;
    }

    .login-header h2 {
        font-size: 1.6rem;
    }

    .login-header p {
        font-size: 0.9rem;
    }

    .input-group input {
        padding: 12px 12px 12px 40px;
        font-size: 0.9rem;
    }

    .login-btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
}