@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

* {
    /*border: 1px solid red;*/
    text-align: center;
    font-family: "Poppins", sans-serif;
    box-sizing: border-box;
}

:root {
    --primary-accent: #f6992a;
    --primary-accent-deeper: #f57c00;
    --secondary-accent: #6aade4;
    --secondary-accent-deeper: #185485;
}

body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    margin: 0;
}

.hidden {
    visibility: hidden;
}

.mobile-question-container,
.mobile-patchmatch-container,
.mobile-question-text-container {
    display: none;
}

/* ===== HEADER ===== */
.header {
    background-color: var(--secondary-accent);
    color: white;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.title-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-width: 0;
}

.title {
    font-weight: bold;
    font-size: clamp(14px, 2.2vw, 36px);
}

.subtitle {
    font-size: clamp(10px, 1.2vw, 18px);
    margin-top: 4px;
}

.subtitle a {
    color: white;
    text-decoration: underline;
}

.subtitle a:hover {
    color: var(--primary-accent);
}

.score-container {
    display: flex;
    justify-content: center;
    gap: 4px;
    flex-shrink: 0;
}

.score-text {
    font-size: clamp(16px, 2.2vw, 36px);
    font-weight: bold;
}

.help-container {
    display: flex;
    justify-content: center;
    flex-shrink: 0;
}

.help-button {
    height: 36px;
    width: 36px;
    min-height: 36px;
    min-width: 36px;
    border-radius: 50%;
    background-color: white;
    color: var(--secondary-accent);
    font-size: clamp(16px, 1.4vw, 25px);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.help-button:hover {
    background-color: var(--secondary-accent-deeper);
    color: white;
}

/* ===== MAIN LAYOUT ===== */
.main {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: row;
    align-content: center;
    justify-content: center;
    gap: 50px;
}

/* ===== QUESTION COLUMN ===== */
.question-column {
    border: none;
    flex: 0 1 280px;
    min-width: 200px;
    max-width: 320px;
    gap: 16px;
    display: grid;
    align-content: space-between;
    grid-template-rows: repeat(4, 1fr);
    justify-items: center;
}

.question-container {
    grid-row: span 2;
    border-radius: 15px;
    width: 100%;
    background-color: var(--secondary-accent);
    display: flex;
    flex-direction: column;
    align-content: center;
    justify-content: center;
}

.question-text {
    color: white;
    font-size: clamp(16px, 1.8vw, 30px);
    font-weight: bold;
    padding: clamp(12px, 2vw, 30px);
}

.question-image-container {
    padding: 0 clamp(12px, 2vw, 30px) clamp(12px, 2vw, 30px) clamp(12px, 2vw, 30px);
    position: relative;
    display: inline-block;
}

.question-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 15px;
    position: relative;
    display: block;
    object-fit: cover;
}

.question-image-overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    opacity: 0;
}

.question-image-overlay-text {
    color: white;
    font-size: clamp(12px, 1.2vw, 20px);
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.question-image-container:hover .question-image-overlay {
    opacity: 1;
}

.question-image-container:hover {
    filter: brightness(1.5);
}

/* ===== USER CONTROLS ===== */
.bottom-controls-wrapper {
    grid-row: span 2;
    display: grid;
    grid-template-rows: repeat(2, 1fr);
    gap: 16px;
    width: 100%;
}

.user-control-container {
    border-radius: 15px;
    background-color: var(--secondary-accent);
    display: flex;
    width: 100%;
    flex-direction: column;
    align-content: center;
    justify-content: center;
}

.controls-container {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    gap: clamp(12px, 2vw, 30px);
    padding: clamp(12px, 2vw, 30px);
}

.control-button {
    background-color: white;
    border: none;
    color: var(--secondary-accent);
    padding: 8px 16px;
    font-size: clamp(14px, 1.5vw, 24px);
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
}

.control-button:hover {
    background-color: var(--secondary-accent-deeper);
    color: white;
}

.user-feedback-container {
    padding: 0 16px 16px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-feedback-text {
    padding-top: 8px;
    padding-bottom: 4px;
    font-size: clamp(12px, 1.3vw, 20px);
    font-weight: bold;
    color: white;
}

/* ===== PATCHMATCH PREDICTION ===== */
.PatchMatch-container {
    border-radius: 15px;
    background-color: var(--primary-accent);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-content: center;
    justify-content: center;
}

.prediction-button-container {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    padding: clamp(12px, 2vw, 30px);
}

.prediction-button {
    background-color: var(--primary-accent-deeper);
    border: none;
    color: white;
    padding: 8px 16px;
    font-size: clamp(14px, 1.5vw, 24px);
    border-radius: 5px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.prediction-button:hover {
    background-color: white;
    color: var(--primary-accent-deeper);
}

.prediction-status-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px 16px 16px;
}

.prediction-status {
    font-size: clamp(12px, 1.3vw, 20px);
    font-weight: bold;
    color: white;
}

/* ===== ANSWER GRID ===== */
.answer-column {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    justify-content: center;
    justify-items: center;
    align-items: center;
    max-width: calc((100vh - 150px) * 1.33);
}

.answer-option {
    grid-row: span 1;
    grid-column: span 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1 / 1;
}

.answer-image-container {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    position: relative;
    display: block;
}

.answer-image {
    width: 95%;
    height: 95%;
    border-radius: 15px;
    position: absolute;
    top: 2.5%;
    left: 2.5%;
    object-fit: cover;
}

.answer-image-container:hover {
    filter: brightness(1.5);
    cursor: pointer;
}

.answer-image-overlay {
    position: absolute;
    top: 2.5%;
    bottom: 0;
    left: 2.5%;
    right: 0;
    height: 95%;
    width: 95%;
    opacity: 0;
    background-color: rgba(0, 140, 186, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
}

.answer-text {
    font-size: clamp(10px, 1vw, 14px);
    min-height: 20px;
    display: inline-block;
    padding: 5px;
}

.answer-overlay-rank {
    color: white;
    font-size: clamp(24px, 4vw, 60px);
    position: absolute;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 20%;
    font-weight: bold;
}

.answer-overlay-similarity {
    color: white;
    font-size: clamp(10px, 1vw, 16px);
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.answer-image-container.clicked .answer-image-overlay {
    opacity: 1;
}

.answer-image-container.correct {
    background-color: green;
}

.answer-image-container.wrong {
    background-color: red;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 15px;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    text-align: left;
}

.modal-content h2, .modal-content p {
    text-align: left;
    color: #333;
}

.modal-content p {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 16px;
}

.modal-close-button {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #999;
}

.modal-close-button:hover {
    color: #333;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {

    /* ---- Sticky top: header bar + question image merged ---- */
    .header {
        position: sticky;
        top: 0;
        z-index: 60;
        padding: 8px 10px;
        display: grid;
        grid-template-columns: auto 1fr auto;
        grid-template-rows: auto auto auto auto;
        gap: 4px 10px;
        align-items: center;
        box-shadow: 0 3px 8px rgba(0,0,0,0.18);
    }

    .help-container {
        grid-column: 1;
        grid-row: 1;
        justify-content: flex-start;
    }

    .help-button {
        height: 22px;
        width: 22px;
        min-height: 22px;
        min-width: 22px;
        font-size: 12px;
    }

    .score-container {
        grid-column: 2;
        grid-row: 1;
        justify-content: flex-end;
    }

    .score-text {
        font-size: clamp(14px, 3.5vw, 18px);
    }

    .title-container {
        grid-column: 1 / span 2;
        grid-row: 2;
        align-items: flex-start;
    }

    .title {
        font-size: clamp(12px, 3.5vw, 15px);
        text-align: left;
        line-height: 1.2;
    }

    .subtitle {
        display: none;
    }

    .mobile-question-text-container {
        grid-column: 1 / span 2;
        grid-row: 3;
        display: block;
        margin-top: 0;
    }

    .mobile-question-text {
        font-size: clamp(10px, 2.5vw, 12px);
        font-weight: 400;
        font-style: italic;
        text-align: left;
        color: rgba(255, 255, 255, 0.85);
    }

    .mobile-patchmatch-container {
        display: flex;
        flex-direction: column;
        grid-column: 1 / span 2;
        grid-row: 4;
        background-color: transparent;
        padding: 0;
        margin-top: 2px;
        align-items: center;
        justify-self: flex-start;
    }

    .mobile-patchmatch-container .prediction-button {
        background-color: white;
        color: var(--secondary-accent);
        border: none;
        font-size: clamp(10px, 2.8vw, 12px);
        padding: 4px 10px;
        border-radius: 12px;
        font-weight: bold;
        box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    }

    .mobile-patchmatch-container .prediction-status {
        font-size: clamp(9px, 2.2vw, 11px);
        color: white;
        margin-top: 4px;
        font-weight: bold;
        margin-left: 0;
        text-align: center;
    }

    .mobile-question-container {
        display: flex;
        flex-direction: column;
        grid-column: 3;
        grid-row: 1 / span 4;
        width: clamp(130px, 45vw, 200px);
        align-items: center;
        justify-content: center;
        gap: 4px;
        margin-left: 8px;
    }

    .mobile-question-text {
        font-size: 11px;
        padding: 0;
        text-align: center;
    }

    .mobile-question-container .question-image {
        width: 100%;
        max-width: unset;
        aspect-ratio: 1 / 1;
        border-radius: 10px;
        margin: 0;
    }

    .question-column {
        display: contents;
    }

    .question-container,
    .PatchMatch-container {
        display: none;
    }

    /* ---- Main becomes a plain column, scrolls normally ---- */
    .main {
        flex-direction: column;
        align-items: stretch;
        padding: 24px 12px 0 12px; /* Small gap before answers */
        gap: 0;
        /* Leave room for the fixed footer */
        padding-bottom: 88px;
    }

    /* ---- Answer grid: 2 square columns, scrolls under the footer ---- */
    .answer-column {
        order: 2;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        max-width: 100%;
    }

    .answer-option {
        aspect-ratio: 1 / 1;
        width: 100%;
    }

    .answer-overlay-rank {
        font-size: clamp(18px, 5vw, 28px);
    }

    .answer-overlay-similarity {
        font-size: clamp(8px, 2vw, 10px);
    }

    /* ---- Fixed footer: wrapper is fixed, children stretch ---- */
    .bottom-controls-wrapper {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 100;
        display: flex;
        flex-direction: row;
        align-items: stretch;
        padding: 8px;
        justify-content: center;
        padding-bottom: max(8px, env(safe-area-inset-bottom));
        background: transparent;
    }

    .user-control-container {
        width: 100%;
        max-width: 400px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: stretch;
        padding: 6px;
        border-radius: 15px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }

    .controls-container {
        padding: 2px 2px;
        gap: 4px;
    }

    .control-button {
        flex: 1;
        font-size: clamp(11px, 3vw, 14px);
        padding: 6px 4px;
    }

    .user-feedback-container {
        padding: 2px 4px 3px 4px;
        min-height: 18px;
    }

    .user-feedback-text {
        font-size: clamp(10px, 2.5vw, 12px);
        padding: 0;
    }

    .prediction-button-container {
        padding: 2px 2px;
    }

    .prediction-button {
        width: 100%;
        font-size: clamp(10px, 2.6vw, 13px);
        padding: 6px 4px;
        line-height: 1.2;
    }

    .prediction-status-container {
        padding: 2px 4px 3px 4px;
        min-height: 18px;
    }

    .prediction-status {
        font-size: clamp(10px, 2.5vw, 12px);
    }
}

/* ===== TABLET: tighter side-by-side ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .question-column {
        flex: 0 1 240px;
        min-width: 180px;
        max-width: 260px;
    }

    .answer-column {
        grid-template-columns: repeat(3, 1fr);
        max-width: calc((100vh - 150px) * 0.75);
    }

    .question-text {
        font-size: clamp(14px, 2vw, 22px);
        padding: 16px;
    }
}