@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #ffffff;
    --secondary-color: #e0e0e0;
    --accent-color: #ff8c00; 
    --background-color: #121212;
    --card-background: rgba(255, 255, 255, 0.05);
    --error-color: #ff4d4d;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    background-image: url('https://images.unsplash.com/photo-1555396273-367ea4eb4db5?q=80&w=1974&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: var(--primary-color);
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.login-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    padding: 3rem 2.5rem;
    background: var(--card-background);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.input-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.input-field {
    width: 100%;
    padding: 10px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    outline: none;
    color: var(--primary-color);
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.input-field:focus {
    border-bottom-color: var(--accent-color);
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--accent-color);
    border: none;
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.btn-submit:hover {
    background-color: #e67e00;
    box-shadow: 0 0 15px rgba(255, 140, 0, 0.5);
}

.error-message {
    background-color: var(--error-color);
    color: var(--primary-color);
    padding: 0.8rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}