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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1a1a2e;
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 380px;
    padding: 20px;
}

.login-box {
    background: #16213e;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid #0f3460;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2em;
    margin-bottom: 8px;
}

.login-header p {
    color: #888;
    font-size: 0.95em;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: #aaa;
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #0f3460;
    border-radius: 8px;
    background: #1a1a2e;
    color: #e0e0e0;
    font-size: 1em;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #4a9eff;
    box-shadow: 0 0 0 2px rgba(74, 158, 255, 0.2);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: #4a9eff;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 10px;
}

.login-btn:hover {
    background: #3a8eef;
}

.login-btn:active {
    background: #2a7edf;
}

.login-error {
    background: rgba(255, 70, 70, 0.15);
    border: 1px solid rgba(255, 70, 70, 0.3);
    color: #ff6b6b;
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9em;
    text-align: center;
}