/* =========================================================
   BRIEFCASE CONFIGURATION INTERFACE
   World Object Aesthetic
   ========================================================= */

.briefcase-configuration {
    position: relative;

    width: 100%;
    max-width: 520px;

    margin: 24px auto;
    padding: 28px;

    box-sizing: border-box;

    border: 1px solid rgba(255, 255, 255, 0.16);

    background:
        linear-gradient(
            145deg,
            rgba(255, 255, 255, 0.055),
            rgba(255, 255, 255, 0.018)
        );

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.28),
        inset 0 0 0 1px rgba(255, 255, 255, 0.025);

    backdrop-filter: blur(8px);

    color: inherit;
}


/* =========================================================
   HEADER
   ========================================================= */

.briefcase-configuration-header {
    margin-bottom: 28px;
}

.briefcase-configuration-header h3 {
    margin: 0;

    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.briefcase-configuration-header p {
    margin: 8px 0 0;

    font-size: 12px;
    letter-spacing: 0.04em;

    opacity: 0.55;
}


/* =========================================================
   SECTION
   ========================================================= */

.briefcase-configuration-section {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);

    padding: 18px 0;
}

.briefcase-configuration-section-title {
    margin-bottom: 18px;

    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.16em;

    opacity: 0.45;
}


/* =========================================================
   SETTING
   ========================================================= */

.briefcase-configuration-setting {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 24px;
}

.briefcase-configuration-setting label {
    font-size: 13px;
    letter-spacing: 0.04em;
}


/* =========================================================
   SELECT
   ========================================================= */

.briefcase-configuration-setting select {
    min-width: 150px;

    padding: 9px 12px;

    border: 1px solid rgba(255, 255, 255, 0.18);

    border-radius: 0;

    background: rgba(0, 0, 0, 0.18);

    color: inherit;

    font: inherit;
    font-size: 12px;

    outline: none;

    cursor: pointer;
}

.briefcase-configuration-setting select:hover {
    border-color: rgba(255, 255, 255, 0.32);
}

.briefcase-configuration-setting select:focus {
    border-color: rgba(255, 255, 255, 0.48);

    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.08);
}


/* =========================================================
   ACTIONS
   ========================================================= */

.briefcase-configuration-actions {
    display: flex;
    justify-content: flex-end;

    margin-top: 22px;
}

.briefcase-configuration-actions button {
    padding: 9px 16px;

    border: 1px solid rgba(255, 255, 255, 0.20);

    border-radius: 0;

    background: rgba(255, 255, 255, 0.045);

    color: inherit;

    font: inherit;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;

    cursor: pointer;

    transition:
        background 120ms ease,
        border-color 120ms ease;
}

.briefcase-configuration-actions button:hover {
    background: rgba(255, 255, 255, 0.09);

    border-color: rgba(255, 255, 255, 0.35);
}

.briefcase-configuration-actions button:active {
    background: rgba(255, 255, 255, 0.13);
}

.briefcase-configuration {
    position: relative;
}

.briefcase-configuration-close {
    position: absolute;

    top: 10px;
    right: 10px;

    width: 28px;
    height: 28px;

    padding: 0;

    border: 1px solid transparent;

    background: transparent;

    color: inherit;

    font-family: inherit;
    font-size: 20px;
    font-weight: 300;
    line-height: 26px;

    opacity: 0.45;

    cursor: pointer;

    transition:
        opacity 120ms ease,
        border-color 120ms ease,
        background 120ms ease;
}

.briefcase-configuration-close:hover {
    opacity: 1;

    border-color: rgba(255, 255, 255, 0.18);

    background: rgba(255, 255, 255, 0.05);
}