:root {
    --primary-color: #5923D9;
    --primary-hover: #3F0C85;
    --background-color: #13131f;
    --card-background: #1a1a2e;
    --text-color: #e0e0e0;
    --text-muted: #9090a0;
    --bg-dark: #1a1a2e;
    --bg-darker: #151525;
    --bg-light: #242438;
    --accent: #5923D9;
    --accent-dark: #3F0C85;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

body {
    background: var(--bg-darker);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(89, 35, 217, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(63, 12, 133, 0.15) 0%, transparent 50%),
        linear-gradient(45deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    z-index: -1;
}

body::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%235923D9' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: -1;
}

.auth-container {
    max-width: 400px;
    width: 90%;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(89, 35, 217, 0.2);
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(89, 35, 217, 0.2);
}

.auth-header {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    padding: 20px;
    text-align: center;
    position: relative;
}

.auth-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.auth-header h3 {
    color: var(--text-color);
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.auth-body {
    padding: 30px;
}

.form-control {
    background: rgba(21, 21, 37, 0.8);
    border: 1px solid rgba(89, 35, 217, 0.2);
    border-radius: 8px;
    padding: 12px;
    transition: all 0.3s ease;
    color: var(--text-color);
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(89, 35, 217, 0.2);
    background: rgba(21, 21, 37, 0.9);
    color: var(--text-color);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.btn-primary::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: 0.5s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(89, 35, 217, 0.3);
}

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

.auth-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.auth-footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.auth-footer a:hover {
    color: var(--accent-dark);
}

.auth-footer a:hover::after {
    transform: scaleX(1);
}

.alert {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.2);
    color: #dc3545;
    border-radius: 8px;
    margin-bottom: 20px;
    padding: 12px;
    backdrop-filter: blur(5px);
}

.brand-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 15px;
    display: block;
    animation: float 3s ease-in-out infinite;
}

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

.auth-card {
    animation: fadeIn 0.5s ease-out;
}