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

:root {
    --primary-color: #4A90E2;
    --primary-dark: #357ABD;
    --secondary-color: #50C878;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --background: #F5F7FA;
    --white: #FFFFFF;
    --error: #E74C3C;
    --border-color: #E1E8ED;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
}

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

.background-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.circle-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    right: -50px;
    animation-delay: 5s;
}

.circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: 10%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 450px;
}

/* Responsive - Login Page */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .login-container {
        max-width: 100%;
    }
    
    .login-box {
        border-radius: 16px;
    }
    
    .logo-section {
        padding: 30px 20px;
    }
    
    .logo-circle {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }
    
    .logo-circle svg {
        width: 40px;
        height: 40px;
    }
    
    .company-name {
        font-size: 24px;
    }
    
    .company-subtitle {
        font-size: 12px;
    }
    
    .login-form {
        padding: 25px 20px;
    }
    
    .form-group {
        margin-bottom: 18px;
    }
    
    .form-group label {
        font-size: 13px;
    }
    
    .form-group input {
        padding: 12px 14px;
        font-size: 15px;
    }
    
    .login-btn {
        padding: 14px;
        font-size: 15px;
    }
}

.login-box {
    background: var(--white);
    border-radius: 24px;
    box-shadow: 0 20px 60px var(--shadow-lg);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

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

.logo-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 40px 30px;
    text-align: center;
    color: var(--white);
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.logo-circle svg {
    color: var(--white);
}

.company-name {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.company-subtitle {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.5px;
}

.login-form {
    padding: 40px 30px;
}

.login-form h2 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.welcome-text {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 30px;
}

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

.input-group label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

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

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-secondary);
    z-index: 1;
    pointer-events: none;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    font-family: 'Poppins', sans-serif;
    color: var(--text-primary);
    background: var(--white);
    transition: all 0.3s ease;
    outline: none;
}

.input-wrapper input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.1);
}

.input-wrapper input::placeholder {
    color: var(--text-secondary);
}

.toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    z-index: 1;
}

.toggle-password:hover {
    color: var(--primary-color);
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
    margin-top: 8px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

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

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

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

.error-message {
    margin-top: 16px;
    padding: 12px 16px;
    background: #FEE;
    border: 1px solid var(--error);
    border-radius: 8px;
    color: var(--error);
    font-size: 14px;
    text-align: center;
    display: none;
    animation: shake 0.5s ease;
}

.error-message.show {
    display: block;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-box {
        border-radius: 20px;
    }
    
    .logo-section {
        padding: 30px 20px;
    }
    
    .login-form {
        padding: 30px 20px;
    }
    
    .company-name {
        font-size: 28px;
    }
    
    .logo-circle {
        width: 70px;
        height: 70px;
    }
}

/* Loading State */
.login-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.login-btn.loading .btn-icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}