/* ==========================
   STONER CONCENTRATION
========================== */

.concentration-page {
    min-height: 260px;
    margin: 0;
    padding: 18px;

    background:
        radial-gradient(circle, rgba(0, 0, 0, 0.055) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.16), rgba(0, 0, 0, 0.045)),
        #fff0b8;
    background-size: 7px 7px, 100% 100%, 100% 100%;

    border-right: 4px solid #111;
    border-bottom: 4px solid #111;
    border-left: 4px solid #111;
}

.concentration-title-panel {
    display: grid;
    grid-template-columns: minmax(150px, 235px) minmax(0, 1fr);
    gap: 16px;
    align-items: center;

    margin-bottom: 14px;
    padding: 12px;

    background:
        radial-gradient(circle, rgba(255, 255, 255, 0.18) 2px, transparent 2px),
        linear-gradient(135deg, #311b62, #75278a 58%, #b52f75);
    background-size: 12px 12px, 100% 100%;

    border: 5px solid #111;
    color: #fff0b8;
}

.concentration-title-art {
    display: block;
    width: 100%;
    height: auto;
    border: 4px solid #111;
    background: #18bcd1;
}

.concentration-title-copy {
    text-align: center;
}

.concentration-kicker {
    display: inline-block;
    margin: 0 0 8px;
    padding: 5px 10px;

    background: #f6d13d;
    border: 3px solid #111;
    color: #111;

    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(0.78rem, 1.7vw, 1rem);
    letter-spacing: 0.035em;
    line-height: 1;
    text-transform: uppercase;
    transform: rotate(-1deg);
}

.concentration-title-copy h1 {
    margin: 0;
    color: #77bd3f;

    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(2.35rem, 6vw, 4.6rem);
    font-style: italic;
    line-height: 0.92;
    letter-spacing: 0.01em;
    text-transform: uppercase;

    -webkit-text-stroke: 2px #111;
    text-shadow: 4px 4px 0 #111;
}

.concentration-title-copy > p:last-child {
    max-width: 430px;
    margin: 13px auto 0;
    font-size: clamp(0.92rem, 1.9vw, 1.08rem);
    font-weight: 800;
    line-height: 1.35;
}

.concentration-scoreboard {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
    max-width: 640px;
    margin: 0 auto 10px;
}

.concentration-stat {
    padding: 7px 8px 8px;
    background: #f6d13d;
    border: 3px solid #111;
    text-align: center;
}

.concentration-stat:nth-child(2) {
    background: #2f89c7;
}

.concentration-stat:nth-child(3) {
    background: #e33a27;
    color: #fff;
}

.concentration-stat-label {
    display: block;
    margin-bottom: 2px;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    line-height: 1;
    text-transform: uppercase;
}

.concentration-stat strong {
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(1.3rem, 3vw, 1.85rem);
    line-height: 1;
}

.concentration-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 9px;
    margin-bottom: 8px;
}

.concentration-button,
.concentration-back-link {
    min-height: 40px;
    padding: 8px 16px;

    border: 3px solid #111;
    color: #111;
    cursor: pointer;

    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: 0.95rem;
    letter-spacing: 0.035em;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;

    transition: transform 140ms ease, filter 140ms ease;
}

.concentration-button {
    background: #e33a27;
    color: #fff;
}

.concentration-back-link {
    display: inline-flex;
    align-items: center;
    background: #2f89c7;
}

.concentration-button:hover,
.concentration-button:focus-visible,
.concentration-back-link:hover,
.concentration-back-link:focus-visible {
    filter: brightness(1.08) saturate(1.08);
    transform: translateY(-2px);
}

.concentration-button:active,
.concentration-back-link:active {
    transform: translateY(1px);
}

.concentration-status {
    min-height: 1.35em;
    margin: 8px 0 10px;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(1rem, 2.3vw, 1.25rem);
    letter-spacing: 0.025em;
    line-height: 1.2;
    text-align: center;
    text-transform: uppercase;
}

.memory-game {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 8px;

    width: 100%;
    max-width: 690px;
    margin: 0 auto;
    padding: 12px;

    background:
        radial-gradient(circle, rgba(255, 255, 255, 0.16) 2px, transparent 2px),
        linear-gradient(135deg, #224f85, #2f89c7);
    background-size: 12px 12px, 100% 100%;
    border: 5px solid #111;
}

.memory-game.is-celebrating {
    animation: concentration-board-pulse 900ms ease-out;
}

.memory-card {
    min-width: 0;
    aspect-ratio: 1;
    padding: 0;

    background: #111;
    border: 3px solid #111;
    cursor: pointer;
    perspective: 800px;

    transition: transform 130ms ease, box-shadow 130ms ease;
}

.memory-card:hover:not(:disabled),
.memory-card:focus-visible {
    z-index: 2;
    box-shadow: 0 0 0 3px #f6d13d;
    outline: none;
    transform: translateY(-2px) scale(1.035);
}

.memory-card:disabled {
    cursor: default;
    opacity: 1;
}

.memory-card-inner {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 420ms ease;
}

.memory-card.is-flipped .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card img {
    position: absolute;
    inset: 0;

    display: block;
    width: 100%;
    height: 100%;
    margin: 0;

    background: #111;
    object-fit: contain;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    user-select: none;
}

.memory-card .front-face {
    transform: rotateY(180deg);
}

.memory-card.is-matched {
    box-shadow: 0 0 0 3px #77bd3f;
}

.memory-card.is-matched .front-face {
    filter: saturate(1.12) brightness(1.06);
}

/* ==========================
   VICTORY STASH BURST
========================== */

.concentration-celebration {
    position: fixed;
    inset: 0;
    z-index: 10000;
    overflow: hidden;
    pointer-events: none;
}

.victory-burst {
    position: absolute;
    z-index: 3;
    display: grid;
    place-items: center;

    width: clamp(190px, 28vw, 300px);
    aspect-ratio: 1.3;

    background: #111;
    clip-path: polygon(
        50% 0%, 59% 22%, 76% 5%, 77% 29%, 100% 19%,
        84% 42%, 100% 53%, 79% 59%, 94% 83%, 69% 76%,
        61% 100%, 48% 79%, 31% 98%, 30% 74%, 5% 87%,
        18% 62%, 0 51%, 21% 42%, 2% 21%, 28% 29%, 34% 4%
    );

    color: #e33a27;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(2.2rem, 7vw, 4.4rem);
    font-style: italic;
    letter-spacing: 0.01em;
    line-height: 0.85;
    text-align: center;
    text-transform: uppercase;

    transform: translate(-50%, -50%) scale(0.1) rotate(-14deg);
    animation: victory-burst-pop 2100ms cubic-bezier(0.2, 0.85, 0.25, 1) forwards;
}

.victory-burst::before {
    content: "";
    position: absolute;
    inset: 7px;
    z-index: -1;

    background:
        radial-gradient(circle, rgba(163, 72, 12, 0.34) 2px, transparent 2px),
        linear-gradient(135deg, #fff06a, #f6d13d 58%, #ef962d);
    background-size: 13px 13px, 100% 100%;
    clip-path: inherit;
}

.victory-burst span {
    display: block;
    max-width: 72%;
    -webkit-text-stroke: 2px #111;
    text-shadow: 4px 4px 0 #111;
}

.victory-particle {
    position: absolute;
    z-index: 2;
    display: grid;
    place-items: center;

    opacity: 0;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-weight: 900;
    line-height: 1;
    user-select: none;

    transform: translate(-50%, -50%) scale(0.2);
    animation: victory-particle-flight var(--particle-duration) ease-out var(--particle-delay) forwards;
}

.victory-particle-leaf {
    font-size: clamp(1.55rem, 4vw, 2.8rem);
    filter: drop-shadow(2px 2px 0 #111);
}

.victory-particle-token {
    width: clamp(35px, 6vw, 54px);
    aspect-ratio: 1;
    border: 3px solid #111;
    border-radius: 50%;
    background: #f6d13d;
    color: #397b28;
    font-size: clamp(0.78rem, 2vw, 1.08rem);
    box-shadow: inset 0 0 0 3px #ef962d;
}

.victory-particle-star,
.victory-particle-spark {
    color: #f6d13d;
    font-size: clamp(1.35rem, 3.7vw, 2.5rem);
    -webkit-text-stroke: 2px #111;
    text-shadow: 2px 2px 0 #e33a27;
}

.victory-particle-smoke {
    color: #fff0b8;
    font-size: clamp(1.8rem, 5vw, 3.4rem);
    -webkit-text-stroke: 2px #111;
    text-shadow: 3px 3px 0 rgba(47, 137, 199, 0.78);
}

@keyframes concentration-board-pulse {
    0% {
        filter: brightness(1);
        box-shadow: 0 0 0 0 rgba(119, 189, 63, 0);
        transform: scale(1);
    }
    38% {
        filter: brightness(1.22) saturate(1.2);
        box-shadow: 0 0 0 10px rgba(119, 189, 63, 0.58), 0 0 36px #f6d13d;
        transform: scale(1.018);
    }
    100% {
        filter: brightness(1);
        box-shadow: 0 0 0 20px rgba(119, 189, 63, 0);
        transform: scale(1);
    }
}

@keyframes victory-burst-pop {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.1) rotate(-14deg);
    }
    18% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.16) rotate(3deg);
    }
    31%,
    68% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1) rotate(-2deg);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, calc(-50% - 34px)) scale(0.86) rotate(3deg);
    }
}

@keyframes victory-particle-flight {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) rotate(0) scale(0.2);
    }
    14% {
        opacity: 1;
    }
    72% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform:
            translate(
                calc(-50% + var(--travel-x)),
                calc(-50% + var(--travel-y))
            )
            rotate(var(--particle-spin))
            scale(var(--particle-scale));
    }
}

.concentration-complete {
    position: relative;
    max-width: 610px;
    margin: 16px auto 0;
    padding: 22px 18px 18px;

    background:
        radial-gradient(circle, rgba(0, 0, 0, 0.07) 1px, transparent 1px),
        #f6d13d;
    background-size: 8px 8px;
    border: 5px solid #111;
    text-align: center;
}

.concentration-complete[hidden] {
    display: none;
}

.concentration-complete-burst {
    display: inline-block;
    margin: 0 0 7px;
    padding: 8px 13px;
    background: #e33a27;
    border: 3px solid #111;
    color: #fff;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: 1.4rem;
    font-style: italic;
    text-transform: uppercase;
    transform: rotate(-3deg);
}

.concentration-complete h2 {
    margin: 0;
    font-family: Impact, "Arial Black", Arial, sans-serif;
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    line-height: 1;
    text-transform: uppercase;
}

.concentration-complete p:not(.concentration-complete-burst) {
    margin: 10px 0 14px;
    font-weight: 800;
}

@media (max-width: 900px) {
    .concentration-page {
        padding: 14px;
    }

    .concentration-title-panel {
        grid-template-columns: minmax(125px, 190px) minmax(0, 1fr);
    }

    .memory-game {
        gap: 6px;
        padding: 9px;
    }
}

@media (max-width: 760px) {
    .concentration-page {
        min-height: auto;
        padding: 12px 10px 16px;
        border-right: 0;
        border-left: 0;
    }

    .concentration-title-panel {
        grid-template-columns: minmax(105px, 155px) minmax(0, 1fr);
        gap: 11px;
        border-width: 4px;
    }

    .concentration-title-copy h1 {
        max-width: 100%;
        font-size: clamp(1.9rem, 8.5vw, 2.8rem);
        line-height: 0.98;
        white-space: nowrap;
        -webkit-text-stroke-width: 1px;
        text-shadow: 3px 3px 0 #111;
    }

    .memory-game {
        grid-template-columns: repeat(6, minmax(0, 1fr));
        border-width: 4px;
    }

    .memory-card {
        border-width: 2px;
    }
}

@media (max-width: 540px) {
    .concentration-title-panel {
        grid-template-columns: 1fr;
    }

    .concentration-title-art {
        width: min(66vw, 220px);
        margin: 0 auto;
    }

    .concentration-scoreboard {
        gap: 5px;
    }

    .concentration-stat {
        padding-inline: 4px;
        border-width: 2px;
    }

    .memory-game {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 6px;
        padding: 8px;
    }
}

@media (max-width: 360px) {
    .memory-game {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (hover: none) {
    .memory-card:hover:not(:disabled) {
        box-shadow: none;
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .concentration-button,
    .concentration-back-link,
    .memory-card,
    .memory-card-inner {
        transition: none;
    }

    .concentration-button:hover,
    .concentration-button:focus-visible,
    .concentration-back-link:hover,
    .concentration-back-link:focus-visible,
    .memory-card:hover:not(:disabled),
    .memory-card:focus-visible {
        transform: none;
    }

    .memory-game.is-celebrating {
        animation: none;
    }

    .concentration-celebration {
        display: none;
    }
}