* {
    box-sizing: border-box;
}

:root {
    --primary: #3f7f82;
    --primary-dark: #32696c;
    --primary-light: #eaf3f3;

    --text: #243238;
    --text-secondary: #66757c;

    --border: #d8e0e3;
    --background: #edf4f4;

    --danger: #c0392b;
}

body {
    margin: 0;
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    padding: 24px;

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    color: var(--text);

    background:
        radial-gradient(
            circle at top left,
            rgba(95, 158, 160, 0.18),
            transparent 35%
        ),
        linear-gradient(
            135deg,
            #f3f8f8 0%,
            #dceaea 100%
        );
}


/* ---------- Tarjeta ---------- */

.login-container {
    width: 100%;
    max-width: 420px;

    padding: 42px 40px;

    background-color: #ffffff;

    border: 1px solid rgba(63, 127, 130, 0.12);
    border-radius: 16px;

    box-shadow:
        0 20px 45px rgba(31, 63, 65, 0.10),
        0 4px 12px rgba(31, 63, 65, 0.06);
}


/* ---------- Título ---------- */

.login-container h1 {
    margin: 0 0 32px;

    text-align: center;

    font-size: 28px;
    font-weight: 650;
    letter-spacing: -0.4px;

    color: var(--text);
}


/* ---------- Formulario ---------- */

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.login-container label {
    font-size: 14px;
    font-weight: 600;
    color: #39494f;
}

.login-container input[type="text"],
.login-container input[type="email"],
.login-container input[type="password"] {
    width: 100%;
    height: 44px;

    padding: 0 13px;

    font-family: inherit;
    font-size: 15px;
    color: var(--text);

    background-color: #ffffff;

    border: 1px solid var(--border);
    border-radius: 8px;

    outline: none;

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.login-container input::placeholder {
    color: #9aa6aa;
}

.login-container input[type="text"]:focus,
.login-container input[type="email"]:focus,
.login-container input[type="password"]:focus {
    border-color: var(--primary);

    box-shadow:
        0 0 0 3px rgba(63, 127, 130, 0.13);
}


/* ---------- Botones ---------- */

.form-actions {
    display: flex;
    flex-direction: column;

    gap: 10px;

    margin-top: 6px;
}

.login-container input[type="submit"],
.login-container input[type="reset"] {
    width: 100%;
    height: 44px;

    padding: 0 18px;

    font-family: inherit;
    font-size: 14px;
    font-weight: 600;

    border: none;
    border-radius: 8px;

    cursor: pointer;

    transition:
        background-color 0.2s ease,
        transform 0.1s ease,
        box-shadow 0.2s ease;
}


/* Botón principal */

.login-container input[type="submit"] {
    color: #ffffff;
    background-color: var(--primary);

    box-shadow: 0 3px 8px rgba(63, 127, 130, 0.20);
}

.login-container input[type="submit"]:hover {
    background-color: var(--primary-dark);
}

.login-container input[type="submit"]:active {
    transform: translateY(1px);
}


/* Botón secundario */

.login-container input[type="reset"] {
    color: #536268;
    background-color: #eef2f3;
}

.login-container input[type="reset"]:hover {
    background-color: #e2e8ea;
}


/* ---------- Error ---------- */

.error {
    margin: 20px 0 0;

    padding: 11px 13px;

    font-size: 14px;
    font-weight: 500;

    color: var(--danger);
    text-align: center;

    background-color: #fdf0ef;

    border: 1px solid #f2cbc7;
    border-radius: 8px;
}


/* ---------- Responsive ---------- */

@media (max-width: 480px) {

    .login-container {
        padding: 32px 24px;
    }

}