/* =========================================================
   QUIZ SETTINGS SCENE
   Namespace: qss
   ========================================================= */

/* =========================================================
   ROOT SCENE
   ========================================================= */

.qss-settings-root {
    position: absolute;
    inset: 0;

    font-family: "Poppins", sans-serif;

    overflow: hidden;

    background-color: #09103f;
    background-image: url("/client/assets/images/bg/quiz_bg_portrait.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

@media (orientation: landscape) {
    .qss-settings-root {
        background-image: url("/client/assets/images/bg/quiz_bg_landscape.jpg");
    }
}

/* =========================================================
   TOPBAR
   ========================================================= */

.qss-topbar {
    position: fixed;

    top: 0;
    left: 0;

    width: 100%;
    height: 70px;

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

    padding: 0 20px;
    gap: 10px;

    background: #0a2a43;
    color: white;

    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);

    z-index: 1000;

    box-sizing: border-box;

    transition: background 0.3s ease;
}

/* Back button */

.qss-back-btn {
    font-family: "Sora", sans-serif;

    background: #123d5c;

    border: none;

    padding: 8px 14px;

    border-radius: 6px;

    color: white;

    font-size: 12px;
    font-weight: 600;

    cursor: pointer;

    transition:
        transform 0.2s ease,
        background 0.2s ease;
}

.qss-back-btn:hover {
    transform: scale(1.05);
    background: #174c70;
}

/* Level display */

.qss-level-display {
    font-family: "Sora", sans-serif;

    flex: 1;

    text-align: center;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;

    font-size: 18px;
    font-weight: 700;

    letter-spacing: 0.5px;
}

/* =========================================================
   MAIN SETTINGS CONTAINER
   ========================================================= */

.qss-settings-container {
    position: absolute;

    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;

    gap: 16px;

    overflow-y: auto;
    overflow-x: hidden;

    box-sizing: border-box;

    animation: qss-fadeIn 0.5s ease forwards;
}

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

.qss-section {
    display: flex;

    align-items: center;
    justify-content: space-between;

    box-sizing: border-box;

    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 13px;
    box-shadow:
        0 4px 10px rgba(0, 0, 0, 0.08),
        0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Section labels */

.qss-section label {
    font-family: "Inter", sans-serif;

    flex: 0 0 38%;

    margin-bottom: 0;

    text-align: left;

    font-size: 13px;
    font-weight: 600;

    color: #333;

    white-space: nowrap;
}

/* =========================================================
   CUSTOM DROPDOWN
   ========================================================= */

.qss-custom-dropdown {
    position: relative;

    flex: 1;

    min-width: 0;

    cursor: pointer;
}

/* Selected value / trigger */

.qss-cd-selected {
    position: relative;

    width: 100%;

    padding: 8px 32px 8px 12px;

    border: 1px solid #ccc;

    border-radius: 6px;

    background: white;

    color: #0a2a43;

    font-family: "Inter", sans-serif;

    font-size: 12px;

    line-height: 1.3;

    box-sizing: border-box;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;

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

/* Hover / focus visual */

.qss-cd-selected:hover {
    border-color: #1e88e5;

    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* Down arrow visual guide */

.qss-cd-selected::after {
    content: "▾";

    position: absolute;

    right: 10px;
    top: 50%;

    transform: translateY(-50%);

    color: #0a2a43;

    font-size: 14px;

    opacity: 0.65;

    pointer-events: none;

    transition: transform 0.2s ease;
}

/* Rotate arrow while dropdown is open */

.qss-custom-dropdown:has(.qss-cd-options-open) .qss-cd-selected::after {
    transform: translateY(-50%) rotate(180deg);
}

/* =========================================================
   DROPDOWN OPTIONS CONTAINER
   ========================================================= */

.qss-cd-options {
    position: absolute;

    top: calc(100% + 4px);

    left: 0;
    right: 0;

    max-height: 200px;

    overflow-y: auto;

    background: white;

    border: 1px solid #d0d7de;

    border-radius: 6px;

    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);

    z-index: 1500;

    opacity: 0;

    visibility: hidden;

    pointer-events: none;

    transform: translateY(-4px);

    transition:
        opacity 0.18s ease,
        transform 0.18s ease,
        visibility 0.18s ease;
}

/* Open state */

.qss-cd-options-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-4px);
}

.qss-cd-options-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* =========================================================
   DROPDOWN OPTION
   ========================================================= */

.qss-cd-option {
    padding: 10px;

    background: white;

    color: #0a2a43;

    font-family: "Sora", sans-serif;

    font-size: 14px;

    cursor: pointer;

    transition:
        background 0.2s ease,
        color 0.2s ease;
}

/* Option hover */

.qss-cd-option:hover {
    background: #e3f2fd;

    color: #1e88e5;
}

/* =========================================================
   TOPIC DROPDOWN
   ========================================================= */

.qss-topic-section {
    position: relative;
}

/* =========================================================
   START QUIZ BUTTON
   ========================================================= */

.qss-start-quiz-btn {
    font-family: "Inter", sans-serif;

    width: 100%;

    padding: 16px;

    margin-top: 10px;

    background: #0a2a43;

    color: white;

    font-weight: 600;

    font-size: 16px;

    border: none;

    border-radius: 12px;

    cursor: pointer;

    box-sizing: border-box;

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        background 0.25s ease;
}

.qss-start-quiz-btn:hover {
    background: #06325b;

    transform: scale(1.02);

    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

/* =========================================================
   TOPICS MODAL OVERLAY
   ========================================================= */

.qss-topics-modal-overlay {
    position: fixed;

    inset: 0;

    display: flex;

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

    padding: 20px;

    background: rgba(0, 0, 0, 0.2);

    backdrop-filter: blur(6px);

    z-index: 2000;

    box-sizing: border-box;
}

/* =========================================================
   TOPICS MODAL
   ========================================================= */

.qss-topics-modal {
    width: 100%;

    max-width: 400px;

    max-height: 80%;

    background: white;

    border-radius: 16px;

    overflow: hidden;

    animation: qss-slideUpCenter 0.25s ease;
}

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

.qss-topics-header {
    position: sticky;

    top: 0;

    display: flex;

    align-items: center;
    justify-content: space-between;

    padding: 16px;

    background: #0a2a43;

    color: white;

    font-family: "Sora", sans-serif;

    z-index: 10;
}

/* Close button */

.qss-topics-close {
    background: transparent;

    border: none;

    color: white;

    font-size: 20px;

    cursor: pointer;
}

/* =========================================================
   TOPICS LIST
   ========================================================= */

.qss-topics-list {
    max-height: 60vh;

    overflow-y: auto;
}

/* Topic item */

.qss-topic-item {
    display: flex;

    align-items: center;

    gap: 8px;

    padding: 6px 10px;

    cursor: pointer;

    transition:
        background 0.2s ease,
        color 0.2s ease;
}

/* Selected topic */

.qss-topic-item-selected {
    font-family: "Inter", sans-serif;

    background-color: #7f0;
}

/* Checkbox */

.qss-topic-checkbox {
    pointer-events: none;
}

/* Topic text */

.qss-topic-item span {
    font-family: "Inter", sans-serif;

    font-size: 16px;

    margin-left: 8px;

    vertical-align: middle;
}

/* =========================================================
   ANIMATIONS
   ========================================================= */

@keyframes qss-fadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes qss-slideUpCenter {
    from {
        transform: translateY(20px);

        opacity: 0;
    }

    to {
        transform: translateY(0);

        opacity: 1;
    }
}

/* =========================================================
   RESPONSIVE — SMALL SCREENS
   ========================================================= */

@media (max-width: 400px) {
    .qss-topbar {
        padding: 0 16px;
    }

    .qss-level-display {
        font-size: 16px;
    }

    .qss-section {
        padding: 10px;
        gap: 4px;
    }

    .qss-section label {
        flex-basis: 110px;

        font-size: 13px;
    }

    .qss-cd-selected {
        padding: 8px 30px 8px 10px;

        font-size: 12px;
    }

    .qss-cd-option {
        padding: 9px;

        font-size: 13px;
    }

    .qss-start-quiz-btn {
        font-size: 15px;
    }
}