:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-color: #1f2937;
    --bg-overlay: rgba(15, 23, 42, 0.7); /* Dark subtle overlay */
}

body.auth-page {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-overlay);
    background-blend-mode: overlay;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    z-index: 10;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideUp 0.6s ease-out;
}

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

.auth-logo {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo img {
    max-width: 150px;
}

.auth-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
    text-align: center;
}

.auth-subtitle {
    font-size: 14px;
    color: #6b7280;
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-size: 16px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.btn-auth {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-auth:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

.auth-footer {
    margin-top: 25px;
    text-align: center;
    font-size: 14px;
    color: #6b7280;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

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

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert-danger {
    background: #fee2e2;
    color: #b91c1c;
    border-color: #fecaca;
}

/* Background decorations */
.auth-bg-decor {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    filter: blur(80px);
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
    background: rgba(99, 102, 241, 0.3);
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
    background: rgba(167, 139, 250, 0.3);
}