:root {
    --color-bg: #0c0a0f;
    --color-bg-mine: #12101a;
    --color-panel: #1a1520;
    --color-panel-border: #3d2e14;
    --color-panel-glow: rgba(255, 176, 32, 0.15);
    --color-text: #f5f0e6;
    --color-text-muted: #a89f8f;
    --color-text-subtle: #d4cbb8;
    --color-gold: #ffb020;
    --color-gold-bright: #ffd54f;
    --color-gold-dim: #c98a12;
    --color-accent: #c62828;
    --color-accent-light: #ef5350;
    --color-accent-glow: rgba(239, 83, 80, 0.45);
    --color-rail: #8a8a95;
    --shadow-text: 0 2px 8px rgba(0, 0, 0, 0.9);
    --shadow-gold: 0 0 24px rgba(255, 176, 32, 0.55), 0 2px 4px rgba(0, 0, 0, 0.8);
    --shadow-panel: 0 24px 64px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 176, 32, 0.12);
    --shadow-btn: 0 8px 28px var(--color-accent-glow), 0 4px 0 #7f1d1d;
    --shadow-btn-hover: 0 12px 36px var(--color-accent-glow), 0 4px 0 #7f1d1d;
    --shadow-btn-active: 0 4px 12px rgba(198, 40, 40, 0.4), 0 2px 0 #7f1d1d;
    --font-display: 'Russo One', 'Segoe UI', sans-serif;
    --font-body: 'Nunito', 'Segoe UI', sans-serif;
    --radius-panel: 20px;
    --radius-btn: 12px;
    --z-canvas: 1;
    --z-ui: 10;
    --z-popup: 15;
    --z-screen: 20;
    --z-mobile-block: 100;

    /* Responsive tokens (desktop defaults) */
    --hud-padding: 16px 20px;
    --hud-gap: 12px;
    --hud-panel-padding: 10px 16px;
    --hud-panel-min-width: 100px;
    --hud-label-size: 11px;
    --hud-value-size: 22px;
    --screen-padding: 24px;
    --screen-inset: 48px;
    --panel-max-width: 440px;
    --panel-padding: 36px 32px 32px;
    --panel-radius: 20px;
    --panel-compact-max-width: 380px;
    --panel-compact-padding: 32px 28px 28px;
    --title-size: clamp(1.4rem, min(8vw, 5.5vh), 3rem);
    --title-small-size: clamp(1.2rem, min(6vw, 4.5vh), 2.4rem);
    --tagline-size: clamp(12px, 2vh, 15px);
    --tip-size: 14px;
    --tip-gap: 12px;
    --tip-padding: 12px 14px;
    --tip-icon-size: 32px;
    --stat-value-size: 28px;
    --btn-font-size: 20px;
    --btn-padding: 18px 32px;
    --btn-max-width: 280px;
    --popup-font-size: 22px;
    --logo-width: min(100%, 380px);
    --logo-max-height: clamp(84px, 20vh, 156px);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    overflow: hidden;
    background-color: var(--color-bg);
    font-family: var(--font-body);
    color: var(--color-text);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

#game-container {
    position: absolute;
    inset: 0;
    z-index: var(--z-canvas);
}

#ui-layer {
    position: absolute;
    inset: 0;
    z-index: var(--z-ui);
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hud {
    padding: var(--hud-padding);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--hud-gap);
    pointer-events: auto;
}

.hud-right {
    display: flex;
    align-items: flex-start;
    gap: var(--hud-gap);
}

.hud-home-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border-radius: 12px;
    border: 1px solid rgba(255, 176, 32, 0.28);
    background: linear-gradient(145deg, rgba(26, 21, 32, 0.88), rgba(12, 10, 15, 0.92));
    color: var(--color-text);
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
    pointer-events: auto;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.hud-home-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 176, 32, 0.42);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.55);
}

.hud-home-btn:active {
    transform: translateY(1px);
}

.hud-home-btn__icon {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    color: var(--color-gold-bright);
}

.hud-panel {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--hud-panel-padding);
    background: linear-gradient(145deg, rgba(26, 21, 32, 0.88), rgba(12, 10, 15, 0.92));
    border: 1px solid rgba(255, 176, 32, 0.22);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
    min-width: var(--hud-panel-min-width);
}

.hud-label {
    font-size: var(--hud-label-size);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.hud-value {
    font-family: var(--font-display);
    font-size: var(--hud-value-size);
    color: var(--color-gold-bright);
    text-shadow: var(--shadow-gold);
    line-height: 1.1;
}

.depth-box .hud-value {
    color: var(--color-text-subtle);
    text-shadow: var(--shadow-text);
}

.screen {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    align-items: safe center;
    justify-content: center;
    z-index: var(--z-screen);
    pointer-events: auto;
    padding: var(--screen-padding);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.screen-backdrop {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(255, 140, 20, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse 100% 100% at 50% 50%, transparent 30%, rgba(0, 0, 0, 0.75) 100%),
        linear-gradient(180deg, rgba(12, 10, 15, 0.72) 0%, rgba(12, 10, 15, 0.92) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.game-panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--panel-max-width);
    max-height: min(calc(100dvh - var(--screen-inset)), 100%);
    margin: auto 0;
    padding: var(--panel-padding);
    background:
        linear-gradient(165deg, rgba(38, 30, 22, 0.95) 0%, rgba(18, 14, 22, 0.98) 45%, rgba(12, 10, 15, 0.99) 100%);
    border: 2px solid var(--color-panel-border);
    border-radius: var(--panel-radius);
    box-shadow: var(--shadow-panel);
    text-align: center;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 176, 32, 0.35) transparent;
    animation: panel-enter 0.5s ease-out;
}

.game-panel::before {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: calc(var(--panel-radius) - 6px);
    border: 1px solid rgba(255, 176, 32, 0.1);
    pointer-events: none;
}

.game-panel--compact {
    max-width: var(--panel-compact-max-width);
    padding: var(--panel-compact-padding);
}

.panel-badge {
    display: inline-block;
    margin: 0 0 16px;
    padding: 6px 16px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    background: rgba(255, 176, 32, 0.1);
    border: 1px solid rgba(255, 176, 32, 0.35);
    border-radius: 999px;
}

.panel-badge--danger {
    color: var(--color-accent-light);
    background: rgba(239, 83, 80, 0.12);
    border-color: rgba(239, 83, 80, 0.4);
}

.panel-badge--desktop {
    color: #90caf9;
    background: rgba(144, 202, 249, 0.12);
    border-color: rgba(144, 202, 249, 0.4);
}

.game-title {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-size: var(--title-size);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.game-title__line {
    display: block;
    color: var(--color-text);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
}

.game-title__line--accent {
    color: var(--color-gold-bright);
    text-shadow: var(--shadow-gold);
    animation: title-glow 2.5s ease-in-out infinite;
}

.game-title--row {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.22em;
    white-space: nowrap;
}

.game-title--row .game-title__line {
    display: inline;
}

.game-logo {
    margin: 0 0 clamp(8px, 1.5vh, 12px);
    line-height: 0;
}

.game-logo__img {
    display: block;
    width: auto;
    max-width: var(--logo-width);
    max-height: var(--logo-max-height);
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}

.game-title--small {
    font-size: var(--title-small-size);
    margin-bottom: 20px;
    color: var(--color-accent-light);
    text-shadow: 0 0 20px rgba(239, 83, 80, 0.4);
}

.game-tagline {
    margin: 0 0 28px;
    font-size: var(--tagline-size);
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.03em;
}

.game-tips {
    list-style: none;
    margin: 0 0 32px;
    padding: 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: var(--tip-gap);
}

.game-tips li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: var(--tip-padding);
    font-size: var(--tip-size);
    font-weight: 600;
    line-height: 1.35;
    color: var(--color-text-subtle);
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
}

.game-tips strong {
    color: var(--color-gold-bright);
    font-weight: 800;
}

.tip-icon {
    flex-shrink: 0;
    width: var(--tip-icon-size);
    height: var(--tip-icon-size);
    border-radius: 8px;
    background: rgba(255, 176, 32, 0.12);
    border: 1px solid rgba(255, 176, 32, 0.25);
    position: relative;
}

.tip-icon--keys::after {
    content: '◀ ▶';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    font-weight: 800;
    color: var(--color-gold);
    letter-spacing: -2px;
}

.tip-icon--coin {
    background: radial-gradient(circle at 35% 35%, var(--color-gold-bright), var(--color-gold-dim));
    border-color: var(--color-gold);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    margin: 0 2px;
    box-shadow: 0 0 10px rgba(255, 176, 32, 0.5);
}

.tip-icon--danger {
    background: rgba(239, 83, 80, 0.15);
    border-color: rgba(239, 83, 80, 0.4);
}

.tip-icon--danger::after {
    content: '!';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--color-accent-light);
}

.tip-icon--speed::after {
    content: '»';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 16px;
    color: var(--color-gold);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 28px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 12px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 176, 32, 0.2);
    border-radius: 12px;
}

.stat-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.stat-value {
    font-family: var(--font-display);
    font-size: var(--stat-value-size);
    color: var(--color-gold-bright);
    text-shadow: var(--shadow-gold);
}

.btn {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: var(--btn-max-width);
    padding: var(--btn-padding);
    font-family: var(--font-display);
    font-size: var(--btn-font-size);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text);
    background: linear-gradient(180deg, var(--color-accent-light) 0%, var(--color-accent) 55%, #8b1a1a 100%);
    border: none;
    border-radius: var(--radius-btn);
    cursor: pointer;
    box-shadow: var(--shadow-btn);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn--primary {
    animation: btn-pulse 2.5s ease-in-out infinite;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn-hover);
}

.btn:active {
    transform: translateY(3px);
    box-shadow: var(--shadow-btn-active);
}

.btn__shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    animation: btn-shine 3s ease-in-out infinite;
    pointer-events: none;
}

.btn__text {
    position: relative;
    z-index: 1;
}

#start-screen .btn--primary {
    margin-bottom: 12px;
}

#popup-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: var(--z-popup);
    overflow: hidden;
}

.popup-text {
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-display);
    font-size: var(--popup-font-size);
    color: var(--color-gold-bright);
    pointer-events: none;
    text-shadow: var(--shadow-gold);
    will-change: transform, opacity;
}

.popup-text--idle {
    display: none;
}

@keyframes panel-enter {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes title-glow {
    0%, 100% {
        text-shadow: 0 0 20px rgba(255, 213, 79, 0.4), 0 2px 4px rgba(0, 0, 0, 0.8);
    }
    50% {
        text-shadow: 0 0 32px rgba(255, 213, 79, 0.75), 0 0 48px rgba(255, 176, 32, 0.35), 0 2px 4px rgba(0, 0, 0, 0.8);
    }
}

@keyframes btn-pulse {
    0%, 100% {
        box-shadow: var(--shadow-btn);
    }
    50% {
        box-shadow: 0 8px 36px rgba(239, 83, 80, 0.55), 0 4px 0 #7f1d1d;
    }
}

@keyframes btn-shine {
    0% {
        left: -100%;
    }
    40%, 100% {
        left: 150%;
    }
}

/* ─── Mobile block overlay (phones only — iPad/tablet allowed) ─── */
#mobile-block-screen {
    z-index: var(--z-mobile-block);
    display: none;
}

@media (max-width: 640px) {
    #mobile-block-screen {
        display: flex;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    #game-container,
    #ui-layer,
    #start-screen,
    #game-over-screen {
        visibility: hidden;
        pointer-events: none;
    }
}

@media (max-height: 500px) and (orientation: landscape) {
    #mobile-block-screen {
        display: flex;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    #game-container,
    #ui-layer,
    #start-screen,
    #game-over-screen {
        visibility: hidden;
        pointer-events: none;
    }
}

body.is-mobile-blocked #mobile-block-screen {
    display: flex;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

body.is-mobile-blocked #game-container,
body.is-mobile-blocked #ui-layer,
body.is-mobile-blocked #start-screen,
body.is-mobile-blocked #game-over-screen {
    visibility: hidden;
    pointer-events: none;
}

.game-panel--mobile-block {
    max-width: min(420px, 100%);
}

.game-tagline--mobile-block {
    margin-bottom: 20px;
    line-height: 1.5;
}

.mobile-block-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0 0 20px;
    font-family: var(--font-display);
    font-size: 28px;
    color: var(--color-gold);
}

.mobile-block-icon__device,
.mobile-block-icon__desktop {
    display: block;
    border-radius: 6px;
    border: 2px solid rgba(255, 176, 32, 0.45);
    background: rgba(0, 0, 0, 0.35);
}

.mobile-block-icon__device {
    width: 28px;
    height: 44px;
}

.mobile-block-icon__desktop {
    width: 52px;
    height: 36px;
    border-radius: 4px;
}

.mobile-block-icon__arrow {
    opacity: 0.7;
    animation: mobile-arrow-pulse 1.8s ease-in-out infinite;
}

.mobile-block-reqs {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
}

.mobile-block-reqs li {
    padding: 12px 14px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-subtle);
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
}

.mobile-block-reqs strong {
    color: var(--color-gold-bright);
}

@keyframes mobile-arrow-pulse {
    0%, 100% { transform: translateX(0); opacity: 0.5; }
    50% { transform: translateX(4px); opacity: 1; }
}

/* ─── Desktop (≥1025px) — base styles above ─── */

/* ─── Tablet Landscape (769px – 1024px) ─── */
@media (max-width: 1024px) and (min-width: 769px) {
    :root {
        --hud-padding: 14px 18px;
        --hud-gap: 10px;
        --hud-panel-padding: 9px 14px;
        --hud-panel-min-width: 90px;
        --hud-label-size: 10px;
        --hud-value-size: 20px;
        --screen-padding: 20px;
        --screen-inset: 40px;
        --panel-max-width: 400px;
        --panel-padding: 32px 28px 28px;
        --panel-compact-max-width: 360px;
        --panel-compact-padding: 28px 24px 24px;
        --title-size: clamp(2rem, 5vw, 2.6rem);
        --title-small-size: clamp(1.6rem, 4vw, 2.1rem);
        --tagline-size: 14px;
        --tip-size: 13px;
        --tip-gap: 10px;
        --tip-padding: 11px 12px;
        --tip-icon-size: 30px;
        --stat-value-size: 26px;
        --btn-font-size: 18px;
        --btn-padding: 16px 28px;
        --popup-font-size: 20px;
        --logo-width: min(100%, 340px);
        --logo-max-height: clamp(76px, 18vh, 140px);
    }

    .game-tips {
        margin-bottom: 28px;
    }

    .stats-grid {
        gap: 10px;
        margin-bottom: 24px;
    }

    .stat-card {
        padding: 14px 10px;
    }
}

/* ─── Tablet Portrait (641px – 768px) ─── */
@media (max-width: 768px) and (min-width: 641px) {
    :root {
        --hud-padding: 12px 16px;
        --hud-gap: 8px;
        --hud-panel-padding: 8px 12px;
        --hud-panel-min-width: 80px;
        --hud-label-size: 10px;
        --hud-value-size: 18px;
        --screen-padding: 18px;
        --screen-inset: 36px;
        --panel-max-width: 380px;
        --panel-padding: 28px 24px 24px;
        --panel-compact-max-width: 340px;
        --panel-compact-padding: 26px 22px 22px;
        --panel-radius: 18px;
        --title-size: clamp(1.9rem, 6vw, 2.4rem);
        --title-small-size: clamp(1.5rem, 5vw, 2rem);
        --tagline-size: 14px;
        --tip-size: 13px;
        --tip-gap: 10px;
        --tip-padding: 10px 12px;
        --tip-icon-size: 28px;
        --stat-value-size: 24px;
        --btn-font-size: 17px;
        --btn-padding: 15px 24px;
        --btn-max-width: 260px;
        --popup-font-size: 18px;
        --logo-width: min(100%, 320px);
        --logo-max-height: clamp(72px, 17vh, 128px);
    }

    .panel-badge {
        margin-bottom: 12px;
        padding: 5px 14px;
        font-size: 10px;
    }

    .game-tagline {
        margin-bottom: 22px;
    }

    .game-tips {
        margin-bottom: 24px;
    }

    .game-tips li {
        gap: 12px;
    }

    .stats-grid {
        gap: 8px;
        margin-bottom: 22px;
    }

    .stat-card {
        padding: 12px 10px;
        border-radius: 10px;
    }

    .stat-label {
        font-size: 10px;
    }
}

/* ─── Mobile (≤640px) ─── */
@media (max-width: 640px) {
    :root {
        --hud-padding: 10px 14px;
        --hud-gap: 8px;
        --hud-panel-padding: 7px 11px;
        --hud-panel-min-width: 72px;
        --hud-label-size: 9px;
        --hud-value-size: 17px;
        --screen-padding: 16px;
        --screen-inset: 32px;
        --panel-max-width: 100%;
        --panel-padding: 26px 22px 22px;
        --panel-compact-max-width: 100%;
        --panel-compact-padding: 24px 20px 20px;
        --panel-radius: 16px;
        --title-size: clamp(1.75rem, 7vw, 2.2rem);
        --title-small-size: clamp(1.4rem, 6vw, 1.85rem);
        --tagline-size: 13px;
        --tip-size: 12px;
        --tip-gap: 8px;
        --tip-padding: 10px 11px;
        --tip-icon-size: 26px;
        --stat-value-size: 22px;
        --btn-font-size: 16px;
        --btn-padding: 14px 22px;
        --btn-max-width: 100%;
        --popup-font-size: 17px;
        --logo-width: min(100%, 100%);
        --logo-max-height: clamp(64px, 16vh, 118px);
    }

    .panel-badge {
        margin-bottom: 10px;
        padding: 5px 12px;
        font-size: 9px;
        letter-spacing: 0.16em;
    }

    .game-title--small {
        margin-bottom: 16px;
    }

    .game-tagline {
        margin-bottom: 20px;
    }

    .game-tips {
        margin-bottom: 22px;
    }

    .game-tips li {
        gap: 10px;
        border-radius: 8px;
    }

    .tip-icon--coin {
        width: 24px;
        height: 24px;
    }

    .stats-grid {
        gap: 8px;
        margin-bottom: 20px;
    }

    .stat-card {
        padding: 11px 8px;
        gap: 4px;
    }

    .stat-label {
        font-size: 9px;
        letter-spacing: 0.1em;
    }

    .btn--primary {
        animation: none;
    }

    .game-panel--mobile-block {
        padding: 24px 18px 20px;
    }

    .mobile-block-icon {
        gap: 10px;
        margin-bottom: 16px;
        font-size: 22px;
    }

    .mobile-block-icon__device {
        width: 24px;
        height: 38px;
    }

    .mobile-block-icon__desktop {
        width: 44px;
        height: 30px;
    }

    .mobile-block-reqs li {
        padding: 10px 12px;
        font-size: 13px;
    }
}

/* ─── Small Mobile (≤480px) ─── */
@media (max-width: 480px) {
    :root {
        --hud-padding: 8px 10px;
        --hud-gap: 6px;
        --hud-panel-padding: 6px 9px;
        --hud-panel-min-width: 64px;
        --hud-label-size: 8px;
        --hud-value-size: 15px;
        --screen-padding: 12px;
        --screen-inset: 24px;
        --panel-padding: 22px 16px 18px;
        --panel-compact-padding: 20px 16px 16px;
        --panel-radius: 14px;
        --title-size: clamp(1.55rem, 8vw, 1.9rem);
        --title-small-size: clamp(1.25rem, 7vw, 1.6rem);
        --tagline-size: 12px;
        --tip-size: 11px;
        --tip-gap: 6px;
        --tip-padding: 8px 10px;
        --tip-icon-size: 24px;
        --stat-value-size: 20px;
        --btn-font-size: 15px;
        --btn-padding: 13px 18px;
        --popup-font-size: 15px;
        --logo-width: min(100%, 100%);
        --logo-max-height: clamp(56px, 14vh, 96px);
    }

    .game-panel::before {
        inset: 4px;
        border-radius: calc(var(--panel-radius) - 4px);
    }

    .game-tips li {
        gap: 8px;
    }

    .tip-icon--keys::after {
        font-size: 8px;
    }

    .tip-icon--danger::after {
        font-size: 15px;
    }

    .stat-card {
        padding: 10px 6px;
    }

    .game-tagline--mobile-block {
        font-size: 12px;
        margin-bottom: 16px;
    }

    .mobile-block-reqs {
        gap: 8px;
    }

    .mobile-block-reqs li {
        padding: 9px 10px;
        font-size: 12px;
        border-radius: 8px;
    }
}

/* ─── Short viewport — embedded iframe / game portal (any width) ─── */
@media (max-height: 720px) {
    :root {
        --screen-padding: clamp(12px, 2.5vh, 20px);
        --screen-inset: clamp(24px, 5vh, 40px);
        --panel-padding: clamp(18px, 3.5vh, 32px) clamp(18px, 3vw, 28px) clamp(16px, 3vh, 28px);
        --panel-compact-padding: clamp(16px, 3vh, 28px) clamp(16px, 2.5vw, 24px) clamp(14px, 2.5vh, 24px);
        --title-size: clamp(1.3rem, min(7vw, 5vh), 2.4rem);
        --title-small-size: clamp(1.15rem, min(5.5vw, 4vh), 2rem);
        --tagline-size: clamp(11px, 1.8vh, 14px);
        --tip-size: clamp(11px, 1.7vh, 13px);
        --tip-gap: clamp(6px, 1.2vh, 10px);
        --tip-padding: clamp(8px, 1.4vh, 11px) clamp(10px, 1.8vw, 12px);
        --btn-font-size: clamp(14px, 2.2vh, 18px);
        --btn-padding: clamp(11px, 1.8vh, 16px) clamp(18px, 3vw, 28px);
        --logo-width: min(100%, 340px);
        --logo-max-height: clamp(64px, 16vh, 120px);
    }

    .game-logo {
        margin-bottom: clamp(6px, 1.2vh, 10px);
    }

    .panel-badge {
        margin-bottom: clamp(8px, 1.5vh, 12px);
        padding: 4px 12px;
        font-size: clamp(9px, 1.4vh, 10px);
    }

    .game-title {
        margin-bottom: clamp(4px, 0.8vh, 8px);
    }

    .game-title--small {
        margin-bottom: clamp(10px, 2vh, 16px);
    }

    .game-tagline {
        margin-bottom: clamp(14px, 2.5vh, 22px);
    }

    .game-tips {
        margin-bottom: clamp(16px, 2.8vh, 24px);
    }

    .stats-grid {
        margin-bottom: clamp(16px, 2.5vh, 22px);
        gap: clamp(6px, 1.2vh, 10px);
    }

    .stat-card {
        padding: clamp(10px, 1.8vh, 14px) clamp(8px, 1.5vw, 10px);
    }
}

@media (max-height: 620px) {
    :root {
        --screen-padding: clamp(10px, 2vh, 16px);
        --screen-inset: clamp(20px, 4vh, 32px);
        --panel-padding: clamp(14px, 2.8vh, 22px) clamp(14px, 2.5vw, 20px) clamp(12px, 2.5vh, 18px);
        --panel-compact-padding: clamp(12px, 2.5vh, 18px) clamp(12px, 2vw, 18px) clamp(10px, 2vh, 16px);
        --title-size: clamp(1.15rem, min(6.5vw, 4.5vh), 2rem);
        --title-small-size: clamp(1rem, min(5vw, 3.8vh), 1.7rem);
        --tagline-size: clamp(10px, 1.6vh, 12px);
        --tip-size: clamp(10px, 1.5vh, 12px);
        --tip-gap: 5px;
        --tip-padding: 7px 10px;
        --tip-icon-size: clamp(22px, 3.5vh, 28px);
        --btn-font-size: clamp(13px, 2vh, 16px);
        --btn-padding: clamp(10px, 1.6vh, 14px) clamp(16px, 2.5vw, 22px);
        --stat-value-size: clamp(18px, 3.5vh, 24px);
        --logo-width: min(100%, 300px);
        --logo-max-height: clamp(56px, 14vh, 100px);
    }

    .game-logo {
        margin-bottom: 6px;
    }

    .panel-badge {
        margin-bottom: 6px;
        padding: 3px 10px;
        font-size: 8px;
        letter-spacing: 0.14em;
    }

    .game-tagline {
        margin-bottom: 10px;
    }

    .game-tips {
        margin-bottom: 12px;
    }

    .game-tips li {
        gap: 10px;
        line-height: 1.25;
    }

    .stats-grid {
        margin-bottom: 12px;
    }
}

@media (max-height: 520px) {
    :root {
        --screen-padding: 8px 12px;
        --screen-inset: 16px;
        --panel-padding: 12px 16px 10px;
        --panel-compact-padding: 10px 14px 10px;
        --panel-radius: 12px;
        --title-size: clamp(1rem, 4vh, 1.5rem);
        --title-small-size: clamp(0.95rem, 3.5vh, 1.35rem);
        --tagline-size: 10px;
        --tip-size: 10px;
        --tip-gap: 4px;
        --tip-padding: 6px 8px;
        --tip-icon-size: 22px;
        --btn-font-size: 12px;
        --btn-padding: 9px 16px;
        --stat-value-size: 18px;
        --logo-width: min(100%, 260px);
        --logo-max-height: clamp(48px, 12vh, 80px);
    }

    .game-logo {
        margin-bottom: 4px;
    }

    .panel-badge {
        display: none;
    }

    .game-tagline {
        margin-bottom: 8px;
    }

    .game-tips {
        margin-bottom: 10px;
    }

    .tip-icon--coin {
        width: 20px;
        height: 20px;
    }

    .tip-icon--danger::after {
        font-size: 14px;
    }

    .tip-icon--keys::after {
        font-size: 7px;
    }

    .btn--primary {
        animation: none;
    }
}

/* ─── Wide + short — typical site embed with sidebar ─── */
@media (min-width: 769px) and (max-height: 720px) {
    :root {
        --panel-max-width: min(560px, 96vw);
        --panel-padding: clamp(14px, 2.8vh, 24px) clamp(20px, 3vw, 28px) clamp(12px, 2.5vh, 20px);
        --logo-width: min(100%, 520px);
        --logo-max-height: clamp(112px, 24vmin, 176px);
    }

    #start-screen .game-logo__img {
        max-width: min(100%, 520px);
        max-height: clamp(112px, 24vmin, 176px);
    }

    .game-logo {
        margin-bottom: clamp(8px, 1.4vh, 12px);
    }

    .game-tips {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: clamp(6px, 1.2vh, 8px);
        margin-bottom: clamp(12px, 2.2vh, 18px);
    }

    .game-tips li {
        align-items: flex-start;
    }
}

/* ─── Landscape Mobile (short landscape viewports) ─── */
@media (max-width: 1024px) and (orientation: landscape) and (max-height: 500px) {
    :root {
        --screen-padding: 10px 16px;
        --screen-inset: 20px;
        --panel-padding: 18px 22px 16px;
        --panel-compact-padding: 16px 20px 14px;
        --title-size: clamp(1.4rem, 5vh, 1.8rem);
        --title-small-size: clamp(1.2rem, 4.5vh, 1.55rem);
        --tagline-size: 12px;
        --tip-size: 11px;
        --tip-gap: 6px;
        --tip-padding: 7px 10px;
        --btn-font-size: 14px;
        --btn-padding: 11px 20px;
        --logo-width: min(100%, 280px);
        --logo-max-height: clamp(44px, 11vh, 72px);
    }

    .game-logo {
        margin-bottom: 4px;
    }

    .panel-badge {
        margin-bottom: 8px;
        padding: 4px 12px;
        font-size: 9px;
    }

    .game-title {
        margin-bottom: 4px;
    }

    .game-title--small {
        margin-bottom: 10px;
    }

    .game-tagline {
        margin-bottom: 12px;
    }

    .game-tips {
        display: grid;
        grid-template-columns: 1fr 1fr;
        margin-bottom: 14px;
        gap: 6px;
    }

    .game-tips li {
        padding: 7px 10px;
    }

    .stats-grid {
        margin-bottom: 14px;
        gap: 8px;
    }

    .stat-card {
        padding: 8px 8px;
        gap: 2px;
    }

    .stat-value {
        font-size: 20px;
    }

    .hud {
        padding: 8px 12px;
    }

    .hud-panel {
        padding: 5px 10px;
        min-width: 60px;
    }

    .hud-value {
        font-size: 14px;
    }

    .game-panel--mobile-block {
        padding: 16px 20px 14px;
    }

    .mobile-block-icon {
        margin-bottom: 10px;
        font-size: 20px;
        gap: 8px;
    }

    .mobile-block-icon__device {
        width: 20px;
        height: 32px;
    }

    .mobile-block-icon__desktop {
        width: 38px;
        height: 26px;
    }

    .game-tagline--mobile-block {
        margin-bottom: 12px;
    }

    .mobile-block-reqs {
        gap: 6px;
    }

    .mobile-block-reqs li {
        padding: 7px 10px;
        font-size: 11px;
    }
}

/* ─── Start screen logo sizing (last — wins over height breakpoints) ─── */
#start-screen .game-logo__img {
    width: auto;
    max-width: min(100%, 440px);
    max-height: clamp(100px, 20vmin, 172px);
    height: auto;
    object-fit: contain;
}

@media (min-width: 641px) and (max-height: 800px) {
    #start-screen .game-logo__img {
        max-width: min(100%, 520px);
        max-height: clamp(112px, 24vmin, 176px);
    }
}