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

body {
    background-color: #000;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100dvh;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 40px 30px;
    text-align: center;
}

.login-header {
    margin-bottom: 50px;
}

.logo-text {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -2px;
    color: #fff;
}

.login-header p {
    color: #4ade80; /* Verde BRIO */
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    position: relative;
    background-color: #1a1a1a;
    border-radius: 12px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    border: 1px solid #333;
}

.input-group i {
    color: #666;
}

.input-group input {
    background: transparent;
    border: none;
    color: #fff;
    padding: 15px;
    width: 100%;
    outline: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: #4ade80;
    color: #000;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    transition: transform 0.2s active;
}

.btn-primary:active {
    transform: scale(0.98);
}

.error-message {
    color: #ff4d4d;
    margin-top: 20px;
    font-size: 0.9rem;
    min-height: 20px;
}