:root {
    --blue: #08345f;
    --blue-dark: #062b4f;
    --text: #1f2a37;
    --border: #d7dde5;
}

* {
    box-sizing: border-box;
    font-family: "Segoe UI", Arial, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
    background: #fff;
}

.container_ext {
    display: flex;
    min-height: 100vh;
}

/* BANDA BLU */
.left {
    width: 50%;
    background: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .3s ease;
}

.logo {
    max-width: 260px;
    width: 100%;
    padding: 20px;
    transition: all .3s ease;
    filter: brightness(0) invert(1);
}

.logo img {
    width: 100%;
    height: auto;
    display: block;
}

/* AREA LOGIN */
.right {
    width: 50%;
    padding: 60px 80px;
}

h1 {
    margin-top: 0;
    color: var(--blue);
    font-size: 32px;
}

.subtitle {
    margin: 10px 0 30px;
    color: #4b5563;
}

.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 30px;
}

.tab {
    padding: 12px 30px;
    font-weight: 600;
    color: #6b7280;
}

.tab.active {
    color: var(--blue);
    border-bottom: 3px solid var(--blue);
}

.form-group {
    margin-bottom: 22px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
}

input:focus {
    outline: none;
    border-color: var(--blue);
}

.actions {
    display: flex;
    justify-content: space-between;
    margin: 10px 0 30px;
}

.actions a {
    font-size: 14px;
    color: var(--blue);
    text-decoration: none;
}

button {
    width: 100%;
    background: var(--blue-dark);
    color: #fff;
    border: none;
    padding: 14px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background: var(--blue);
}

/* TABLET */
@media (max-width: 900px) {
    .container_ext {
        flex-direction: column;
    }

    .left {
        width: 100%;
        padding: 28px 0;
    }

    .logo {
        max-width: 180px;
    }

    .right {
        width: 100%;
        padding: 40px 24px;
    }
}

/* MOBILE */
@media (max-width: 600px) {
    .left {
        padding: 14px 0;
    }

    .logo {
        max-width: 120px;
        padding: 8px;
    }

    h1 {
        font-size: 26px;
    }
}