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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.bi {
    display: inline-block;
    vertical-align: middle;
    line-height: 1;
}

.form-container {
    background: #1e293b;
    border-radius: 16px;
    padding: 40px;
    border: 1px solid #334155;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    max-width: 400px;
    width: 100%;
    transition: all 0.3s ease;
}

.form-container:hover {
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.1);
}

.form-container h1 {
    color: #f1f5f9;
    margin-bottom: 32px;
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

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

.form-group label {
    display: block;
    color: #e2e8f0;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: #0f172a;
    border: 1px solid #475569;
    border-radius: 8px;
    color: #e2e8f0;
    font-size: 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:hover {
    border-color: #64748b;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.form-group input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    padding: 16px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 32px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

.submit-btn::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: left 0.5s ease;
}

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

.submit-btn:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    border-radius: 12px;
}

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

.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(239, 68, 68, 0.3);
    line-height: 1.4;
}

.success-message {
    background: rgba(16, 185, 129, 0.1);
    color: #a7f3d0;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    line-height: 1.4;
}





.form-group input.error {
    border-color: rgba(239, 68, 68, 0.6);
    background: rgba(239, 68, 68, 0.05);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group input.error:focus {
    border-color: rgba(239, 68, 68, 0.8);
    background: rgba(239, 68, 68, 0.08);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.field-error {
    display: block;
    color: #fca5a5;
    font-size: 13px;
    font-weight: 500;
    margin-top: 8px;
    margin-bottom: 0;
    padding: 6px 10px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 4px;
    line-height: 1.4;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.2);
    accent-color: #3b82f6;
}





.register-link,
.login-link {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 14px;
}

.register-link a,
.login-link a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
}

.register-link a:hover,
.login-link a:hover {
    color: #60a5fa;
    text-decoration: underline;
}

@media (max-width: 480px) {
    .demo-accounts-notice {
        padding: 12px;
    }
    
    .demo-account {
        font-size: 13px;
    }
}

.demo-accounts-notice {
    background: linear-gradient(135deg, #10b981, #059669);
    border: 1px solid #047857;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    text-align: left;
}

.demo-accounts-notice h3 {
    color: white;
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.demo-account {
    color: #a7f3d0;
    margin-bottom: 8px;
    font-size: 14px;
}

.demo-account:last-child {
    margin-bottom: 0;
}

.demo-account strong {
    color: white;
}

.demo-account code {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
}