/* Modern Login Page Styles */
:root {
    --primary-gradient: linear-gradient(120deg, #2b5876 0%, #4e4376 100%);
    --accent-gradient: linear-gradient(120deg, #f093fb 0%, #f5576c 100%);
    --glass-bg: rgba(20, 30, 48, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --error-color: #ff4b4b;
    --success-color: #00c853;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to right, #141e30, #243b55);
    padding: 20px;
    position: relative;
}

/* Animated Background */
body::before,
body::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: var(--accent-gradient);
    filter: blur(100px);
    opacity: 0.1;
    animation: floatBubble 20s infinite alternate;
    z-index: 0;
}

body::before {
    top: -200px;
    left: -200px;
}

body::after {
    bottom: -200px;
    right: -200px;
    animation-delay: -10s;
}

@keyframes floatBubble {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 50px) scale(1.1); }
    100% { transform: translate(-50px, -50px) scale(0.9); }
}

.login-container {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    padding: 2rem;
    border-radius: 24px;
    backdrop-filter: blur(8px);
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
}

.login-container::before {
    /*content: '';*/
    position: absolute;
    top: 0;
    left: -50%;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: skewX(-15deg);
    transition: 0.5s;
    z-index: -1;
}

.login-container:hover::before {
    left: 150%;
    transition: 0.8s ease-in-out;
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-header i {
    font-size: 3.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    display: inline-block;
    filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.3));
}

.login-header h1 {
    color: #fff;
    font-size: 2.2rem;
    margin: 0;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
    transition: all 0.3s ease;
}

.form-group:hover {
    transform: translateY(-2px);
}

.form-group i {
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.form-control {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-control:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

.form-control:focus + i {
    color: #fff;
    transform: translateY(-50%) scale(1.1);
}

.submit-btn {
    background: linear-gradient(120deg, rgba(59, 130, 246, 1) 0%, rgba(147, 51, 234, 1) 100%);
    color: #fff;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.submit-btn:hover {
    transform: translateY(-2px);
    background: linear-gradient(120deg, rgba(78, 67, 118, 0.8) 0%, rgba(43, 88, 118, 0.8) 100%);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

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

.error-message {
    background: rgba(255, 75, 75, 0.15);
    color: #fff;
    padding: 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 75, 75, 0.3);
    display: none;
    backdrop-filter: blur(5px);
}

.error-message.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Loading Animation */
.loading {
    display: none;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    .login-container {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .login-header i {
        font-size: 2.5rem;
    }

    .login-header h1 {
        font-size: 1.6rem;
    }

    .form-control {
        padding: 0.9rem 0.9rem 0.9rem 2.8rem;
        font-size: 0.95rem;
    }

    .form-group i {
        left: 1rem;
        font-size: 1.1rem;
    }

    .submit-btn {
        padding: 0.9rem;
        font-size: 1rem;
    }
}

/* Remember Me Checkbox */
.remember-me {
    margin: -0.5rem 0;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: relative;
    height: 18px;
    width: 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--glass-border);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.checkbox-container:hover .checkmark {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
}

.checkbox-container input:checked ~ .checkmark {
    background: var(--accent-gradient);
    border-color: transparent;
}

.checkmark:after {
    content: '';
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}