/* Modern Login Page Styles */

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

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

/* Animated background shapes */
body::before,
body::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

body::before {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

body::after {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.08);
    bottom: -50px;
    right: -50px;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(10deg);
    }
}

/* Login Container - Glassmorphism Effect */
.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 10;
    animation: slideUp 0.6s ease-out;
}

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

/* Heading */
.login-container h2 {
    text-align: center;
    color: #1a1a2e;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.5px;
}

.login-container h2::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* Error Message */
.error-message {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    color: #fff;
    padding: 14px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

/* Form Groups */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    color: #4a5568;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

/* Input Fields */
.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 16px 20px;
    font-size: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background-color: #f8fafc;
    color: #1a1a2e;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input[type="text"]:hover,
.form-group input[type="password"]:hover {
    border-color: #cbd5e0;
    background-color: #fff;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: #667eea;
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.form-group input::placeholder {
    color: #a0aec0;
}

/* Login Button */
.form-group button {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.form-group button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

.form-group button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(102, 126, 234, 0.5);
}

.form-group button:hover::before {
    left: 100%;
}

.form-group button:active {
    transform: translateY(0);
}

/* Links */
.form-group a {
    display: block;
    text-align: center;
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 0;
}

.form-group a:hover {
    color: #764ba2;
    text-decoration: none;
}

.form-group a:last-child {
    color: #4a5568;
}

.form-group a:last-child:hover {
    color: #667eea;
}

/* Responsive Design */
@media (max-width: 480px) {
    .login-container {
        margin: 20px;
        padding: 36px 28px;
    }

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

    .form-group input[type="text"],
    .form-group input[type="password"],
    .form-group button {
        padding: 14px 16px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    }

    .login-container {
        background: rgba(30, 30, 50, 0.95);
    }

    .login-container h2 {
        color: #f7fafc;
    }

    .form-group label {
        color: #a0aec0;
    }

    .form-group input[type="text"],
    .form-group input[type="password"] {
        background-color: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: #f7fafc;
    }

    .form-group input[type="text"]:hover,
    .form-group input[type="password"]:hover {
        background-color: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.2);
    }

    .form-group input[type="text"]:focus,
    .form-group input[type="password"]:focus {
        border-color: #667eea;
        background-color: rgba(255, 255, 255, 0.1);
    }

    .form-group a:last-child {
        color: #a0aec0;
    }
}