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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0c1a2b;
    color: #333;
    overflow-x: hidden;
}

/* Slideshow Background */
.slideshow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.slide.active {
    opacity: 0.15;
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(12, 26, 43, 0.9) 0%, rgba(44, 62, 80, 0.8) 100%);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin: 20px;
    padding: 15px 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
}

.logo i {
    color: #e67e22;
    font-size: 2rem;
}

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

.main-nav a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: #e67e22;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 0 40px;
    color: white;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 300;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #e67e22 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #e67e22;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* Auth Section */
.auth-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    margin: 40px 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

/* Role Selection */
.role-selection {
    text-align: center;
}

.role-selection h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.role-selection p {
    color: #5a6c7d;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

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

.role-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.role-card:hover {
    transform: translateY(-5px);
    border-color: #e67e22;
    box-shadow: 0 15px 40px rgba(230, 126, 34, 0.2);
}

.role-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.role-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.role-card p {
    color: #5a6c7d;
    margin-bottom: 20px;
    line-height: 1.5;
}

.role-card ul {
    list-style: none;
    text-align: left;
    margin-bottom: 25px;
}

.role-card li {
    color: #5a6c7d;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.role-card li i {
    color: #27ae60;
}

.btn-role {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #e67e22, #d35400);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-role:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(230, 126, 34, 0.4);
}

/* Form Containers */
.form-container {
    display: none;
    max-width: 450px;
    margin: 0 auto;
}

.form-container.active {
    display: block;
}

.form-header {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.back-btn {
    position: absolute;
    left: 0;
    top: 0;
    background: none;
    border: none;
    color: #5a6c7d;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: color 0.3s ease;
}

.back-btn:hover {
    color: #e67e22;
}

.form-header h2 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.form-header p {
    color: #5a6c7d;
}

.form-header span {
    color: #e67e22;
    font-weight: 600;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #95a5a6;
}

.input-icon input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid #e8ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.input-icon input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #5a6c7d;
}

.checkbox input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #bdc3c7;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.checkbox input:checked + .checkmark {
    background: #3498db;
    border-color: #3498db;
}

.checkbox input:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 12px;
}

.forgot-password {
    color: #3498db;
    text-decoration: none;
    font-size: 0.9rem;
}

.forgot-password:hover {
    text-decoration: underline;
}

.btn-primary {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.form-footer {
    text-align: center;
    margin-top: 25px;
    color: #5a6c7d;
}

.form-footer a {
    color: #3498db;
    text-decoration: none;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Demo Accounts */
.demo-accounts {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    text-align: center;
}

.demo-accounts h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.demo-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn-demo {
    padding: 8px 12px;
    background: white;
    border: 2px solid #e8ecef;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.btn-demo:hover {
    border-color: #3498db;
    color: #3498db;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    color: white;
    text-align: center;
}

.features-section h2 {
    font-size: 2.5rem;
    margin-bottom: 50px;
    background: linear-gradient(135deg, #fff 0%, #e67e22 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e67e22, #d35400);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    color: white;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Footer */
.main-footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px 20px 0 0;
    margin-top: 60px;
    padding: 40px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.footer-section p,
.footer-section a {
    color: #5a6c7d;
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
}

.footer-section a:hover {
    color: #e67e22;
}

.footer-section i {
    margin-right: 10px;
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #e8ecef;
    color: #5a6c7d;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

    .role-cards {
        grid-template-columns: 1fr;
    }

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

    .demo-buttons {
        grid-template-columns: 1fr;
    }

    .auth-section {
        margin: 20px 10px;
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .features-section h2 {
        font-size: 2rem;
    }

    .feature-card {
        padding: 30px 20px;
    }
}