:root {
    --bg-dark: #1a1d24;
    --card-bg: #1c222c;
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --text-white: #303234;
    --text-muted: #94a3b8;
    --input-bg: #a5b5cd;
    --error: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, sans-serif;
}

body {
    background-color: var(--bg-dark);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.login-container {
    background-color: var(--card-bg);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.login-header h1 {
    color: var(--text-white);
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    color: var(--text-white);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-white);
    font-size: 1rem;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.btn-login {
    width: 100%;
    background-color: var(--primary);
    color: var(--bg-dark);
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 1rem;
}

.btn-login:hover {
    background-color: var(--primary-hover);
}

.error-message {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    text-align: center;
    border: 1px solid rgba(239, 68, 68, 0.2);
}