/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-wrapper {
    width: 100%;
    max-width: 440px;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-container {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Login Header */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 30px;
    text-align: center;
    color: white;
}

.logo-circle {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.logo-circle svg {
    color: white;
}

.login-header h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 300;
}

/* Login Form */
.login-form {
    padding: 40px 30px 30px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: #9ca3af;
    pointer-events: none;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 14px 14px 46px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f9fafb;
}

.input-wrapper input:focus {
    outline: none;
    border-color: #667eea;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.input-wrapper input::placeholder {
    color: #9ca3af;
}

/* Error Message */
.error-message {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fee2e2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    border: 1px solid #fecaca;
}

.error-message svg {
    flex-shrink: 0;
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

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

.login-btn svg {
    transition: transform 0.3s ease;
}

.login-btn:hover svg {
    transform: translateX(4px);
}

/* Login Footer */
.login-footer {
    padding: 20px 30px;
    background: #f9fafb;
    border-top: 1px solid #e5e7eb;
    text-align: center;
}

.login-footer p {
    font-size: 13px;
    color: #6b7280;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-wrapper {
        max-width: 100%;
    }

    .login-header {
        padding: 30px 20px;
    }

    .login-header h2 {
        font-size: 24px;
    }

    .login-form {
        padding: 30px 20px 20px;
    }

    .login-footer {
        padding: 16px 20px;
    }
}

/* Loading State (optional enhancement) */
.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}