:root {
            --bg-dark: #0f0c1b;
            --card-bg: #1a1528;
            --card-border: #32284f;
            --color-primary: #ff2a75;
            --color-gold: #ffb800;
            --color-cyan: #00f0ff;
            --color-purple: #9d4edd;
            --color-green: #05ffa1;
            --text-main: #f0f0f5;
            --text-sub: #a099c0;
            --text-dim: #605880;
            --font-pixel-en: 'Press Start 2P', monospace;
            --font-pixel-jp: 'DotGothic16', sans-serif;
            --slot-frame-border: #32284f;
            --slot-bg-grad: linear-gradient(180deg, #151026, #090714);
        }

        /* Skin Themes */
        body.skin-gold {
            --bg-dark: #1f1805;
            --card-bg: #2d230a;
            --card-border: #ffb800;
            --color-primary: #ffb800;
            --slot-frame-border: #ffdf00;
            --slot-bg-grad: linear-gradient(180deg, #3d2f00, #1a1400);
        }

        body.skin-cyber {
            --bg-dark: #03131a;
            --card-bg: #07222e;
            --card-border: #00f0ff;
            --color-primary: #00f0ff;
            --slot-frame-border: #00f0ff;
            --slot-bg-grad: linear-gradient(180deg, #023847, #01161f);
        }

        body.skin-famicom {
            --bg-dark: #1a0808;
            --card-bg: #2d1010;
            --card-border: #d80000;
            --color-primary: #ff4d4d;
            --slot-frame-border: #ffddaa;
            --slot-bg-grad: linear-gradient(180deg, #421010, #1a0505);
        }

        body.skin-pastel {
            --bg-dark: #1d0a18;
            --card-bg: #301227;
            --card-border: #ff77bc;
            --color-primary: #ff4db8;
            --color-gold: #ffb3e6;
            --slot-frame-border: #ffb3e6;
            --slot-bg-grad: linear-gradient(180deg, #4a1538, #21081a);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            user-select: none;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            font-family: var(--font-pixel-jp);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 16px;
            transition: background-color 0.4s, color 0.4s;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(255, 42, 117, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.08) 0%, transparent 40%);
        }

        /* Header / User Status Bar */
        .portal-header {
            width: 100%;
            max-width: 1000px;
            margin-bottom: 20px;
        }

        .portal-header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--card-bg);
            border: 2px solid var(--card-border);
            border-radius: 12px;
            padding: 12px 20px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            flex-wrap: wrap;
            gap: 10px;
        }

        .portal-logo {
            font-family: var(--font-pixel-jp);
            font-size: 1.2rem;
            color: var(--color-gold);
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .portal-logo img {
            width: 24px;
            height: 24px;
            image-rendering: pixelated;
        }

        .user-status-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .status-badge {
            background: #110d1e;
            border: 1px solid var(--card-border);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .status-badge img { image-rendering: pixelated; }

        .level-badge { color: var(--color-purple); font-weight: bold; }
        .ticket-badge { color: var(--color-cyan); }
        .coin-badge { color: var(--color-gold); font-weight: bold; }

        .btn-top-menu {
            background: linear-gradient(135deg, #2b1e42, #18122c);
            border: 1px solid var(--color-gold);
            color: var(--color-gold);
            padding: 6px 12px;
            border-radius: 12px;
            font-family: var(--font-pixel-jp);
            font-size: 0.85rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }

        .btn-top-menu:hover {
            box-shadow: 0 0 10px rgba(255, 184, 0, 0.5);
            transform: translateY(-1px);
        }

        /* Main Container Grid */
        .main-container {
            width: 100%;
            max-width: 1000px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .top-split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        @media (max-width: 850px) {
            .top-split-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Generic Arcade Card */
        .arcade-card {
            background: var(--card-bg);
            border: 2px solid var(--card-border);
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.4);
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .card-header-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--card-border);
            padding-bottom: 10px;
        }

        .card-header-title {
            font-size: 1.1rem;
            color: var(--color-gold);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .card-header-title img { image-rendering: pixelated; }

        /* Pomodoro Timer Styling */
        .timer-display-box {
            background: #090714;
            border: 2px solid var(--card-border);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            position: relative;
        }

        .god-avatar-display {
            position: absolute;
            top: 10px;
            right: 14px;
            font-size: 1.8rem;
            display: none;
            animation: bounceGod 1.5s infinite alternate;
        }

        @keyframes bounceGod {
            0% { transform: translateY(0); }
            100% { transform: translateY(-6px); }
        }

        .timer-display {
            font-family: var(--font-pixel-en);
            font-size: 3rem;
            color: var(--color-green);
            text-shadow: 0 0 12px rgba(5, 255, 161, 0.4);
            letter-spacing: 2px;
        }

        .mode-tabs {
            display: flex;
            justify-content: center;
            gap: 10px;
            width: 100%;
        }

        .mode-tabs .tab-btn {
            flex: 1;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: bold;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .tab-btn {
            background: #110d1e;
            border: 1px solid var(--card-border);
            color: var(--text-sub);
            padding: 8px 16px;
            border-radius: 8px;
            cursor: pointer;
            font-family: var(--font-pixel-jp);
            font-size: 0.85rem;
            transition: all 0.2s;
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--color-purple);
            color: #fff;
            border-color: var(--color-purple);
            box-shadow: 0 0 10px rgba(157, 78, 221, 0.4);
        }

        .timer-controls {
            display: flex;
            gap: 10px;
        }

        .btn-action {
            flex: 1;
            padding: 12px;
            border: none;
            border-radius: 8px;
            font-family: var(--font-pixel-jp);
            font-size: 1rem;
            cursor: pointer;
            font-weight: bold;
            transition: transform 0.1s, filter 0.2s;
        }

        .btn-action:active { transform: scale(0.97); }
        .btn-start { background: var(--color-green); color: #000; box-shadow: 0 0 12px rgba(5,255,161,0.3); }
        .btn-pause { background: var(--color-gold); color: #000; }
        .btn-reset { background: #32284f; color: var(--text-main); }

        /* BGM Audio Controller Bar */
        .bgm-player-bar {
            display: none;
            align-items: center;
            justify-content: space-between;
            background: #120e24;
            border: 1px solid var(--color-gold);
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.8rem;
            color: var(--color-gold);
        }

        /* 3x5 Slot Machine Styling */
        .slot-machine-wrapper {
            background: var(--slot-bg-grad);
            border: 2px solid var(--slot-frame-border);
            border-radius: 12px;
            padding: 12px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: center;
            position: relative;
            transition: border-color 0.4s, box-shadow 0.4s;
        }

        /* 3x5 Grid Layout */
        .slot-grid-3x5 {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            grid-template-rows: repeat(3, 1fr);
            gap: 6px;
            width: 100%;
            max-width: 380px;
            background: #090714;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--card-border);
        }

        .slot-cell {
            aspect-ratio: 1 / 1;
            background: #0c0919;
            border: 1px solid #281f45;
            border-radius: 6px;
            display: flex;
            justify-content: center;
            align-items: center;
            font-family: var(--font-pixel-jp);
            font-size: 1.6rem;
            font-weight: bold;
            color: var(--text-main);
            box-shadow: inset 0 0 6px rgba(0,0,0,0.8);
            transition: all 0.2s;
        }

        .slot-cell.spinning { animation: spinBlur 0.1s infinite linear; }
        
        /* 3-tier Reach Glow Animations */
        .slot-cell.reach-glow-3 {
            border-color: var(--color-cyan);
            box-shadow: 0 0 12px var(--color-cyan);
            animation: reachFlashCyan 0.4s infinite alternate;
        }

        .slot-cell.reach-glow-4 {
            border-color: var(--color-gold);
            box-shadow: 0 0 20px var(--color-gold);
            animation: reachFlashGold 0.25s infinite alternate;
        }

        .slot-cell.reach-glow-5 {
            border-color: #ff2a75;
            box-shadow: 0 0 25px #ff2a75, 0 0 40px #00f0ff;
            animation: reachFlashRainbow 0.15s infinite alternate;
        }

        @keyframes reachFlashCyan {
            0% { background: #0c0919; }
            100% { background: rgba(0, 240, 255, 0.3); }
        }

        @keyframes reachFlashGold {
            0% { background: #0c0919; }
            100% { background: rgba(255, 184, 0, 0.45); }
        }

        @keyframes reachFlashRainbow {
            0% { background: rgba(255, 42, 117, 0.6); }
            50% { background: rgba(0, 240, 255, 0.6); }
            100% { background: rgba(255, 184, 0, 0.6); }
        }

        @keyframes spinBlur {
            0% { transform: translateY(-2px); filter: blur(1px); }
            50% { transform: translateY(2px); filter: blur(1px); }
            100% { transform: translateY(0); filter: blur(0); }
        }

        .slot-cell.hit {
            background: rgba(255, 42, 117, 0.25);
            border-color: var(--color-primary);
            color: var(--color-gold);
            box-shadow: 0 0 12px var(--color-primary);
            animation: pulseHit 0.6s infinite alternate;
        }

        @keyframes pulseHit {
            0% { transform: scale(1); filter: brightness(1); }
            100% { transform: scale(1.05); filter: brightness(1.3); }
        }

        .slot-controls {
            display: flex;
            gap: 8px;
            width: 100%;
        }

        .spin-btn {
            flex: 1;
            background: linear-gradient(135deg, var(--color-primary), #d80056);
            color: #fff;
            border: none;
            padding: 12px;
            border-radius: 8px;
            font-family: var(--font-pixel-jp);
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(255, 42, 117, 0.4);
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .spin-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
        .spin-btn:disabled { background: #32284f; color: var(--text-dim); cursor: not-allowed; box-shadow: none; }

        .paytable-btn {
            background: #231b3a;
            border: 1px solid var(--card-border);
            color: var(--color-cyan);
            padding: 12px;
            border-radius: 8px;
            font-family: var(--font-pixel-jp);
            cursor: pointer;
            font-size: 0.85rem;
            white-space: nowrap;
        }

        .paytable-btn:hover { background: #2f254f; }

        /* Interactive Hit Word Link Button */
        .hit-word-link {
            color: var(--color-gold);
            font-weight: bold;
            text-decoration: underline;
            cursor: pointer;
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(255, 184, 0, 0.15);
            border: 1px solid var(--color-gold);
            transition: all 0.2s;
            display: inline-block;
            margin: 0 2px;
        }

        .hit-word-link:hover {
            background: var(--color-gold);
            color: #000;
            box-shadow: 0 0 10px var(--color-gold);
            transform: scale(1.05);
        }

        /* Multi-tiered Dynamic Reach Cut-In Overlays */
        .cutin-fullscreen-overlay {
            position: fixed;
            top: 0; left: 0; width: 100vw; height: 100vh;
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 2500;
            backdrop-filter: blur(10px);
            overflow: hidden;
        }

        /* Level 3: Cyan/Purple Blue Theme (1.5s) */
        .cutin-level-3 {
            background: radial-gradient(circle, rgba(0, 240, 255, 0.92) 0%, rgba(15, 12, 27, 0.98) 100%);
            animation: cutinAnim3 1.5s ease-in-out forwards;
        }
        @keyframes cutinAnim3 {
            0% { opacity: 0; transform: scale(1.3); }
            15% { opacity: 1; transform: scale(1); }
            85% { opacity: 1; transform: scale(1); }
            100% { opacity: 0; transform: scale(0.9); }
        }

        /* Level 4: Golden Burning Super Theme (2.3s) */
        .cutin-level-4 {
            background: radial-gradient(circle, rgba(255, 184, 0, 0.95) 0%, rgba(26, 12, 5, 0.98) 100%);
            animation: cutinAnim4 2.3s ease-in-out forwards;
            background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);
            background-size: 40px 40px;
        }
        @keyframes cutinAnim4 {
            0% { opacity: 0; transform: scale(1.4) rotate(-3deg); }
            10% { opacity: 1; transform: scale(1) rotate(0deg); }
            90% { opacity: 1; transform: scale(1) rotate(0deg); }
            100% { opacity: 0; transform: scale(0.85) rotate(3deg); }
        }

        /* Level 5: ULTIMATE Rainbow Jackpot God Theme (3.2s) */
        .cutin-level-5 {
            background: radial-gradient(circle, rgba(255, 42, 117, 0.98) 0%, rgba(0, 240, 255, 0.8) 50%, rgba(15, 12, 27, 0.99) 100%);
            animation: cutinAnim5 3.2s ease-in-out forwards;
        }
        @keyframes cutinAnim5 {
            0% { opacity: 0; transform: scale(1.6) rotate(-6deg); filter: hue-rotate(0deg); }
            10% { opacity: 1; transform: scale(1) rotate(0deg); }
            50% { filter: hue-rotate(180deg); }
            90% { opacity: 1; transform: scale(1.05) rotate(0deg); filter: hue-rotate(360deg); }
            100% { opacity: 0; transform: scale(0.7) rotate(6deg); }
        }

        .cutin-full-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            color: #fff;
            text-shadow: 0 0 25px #000;
            animation: cutinZoomPulse 0.4s infinite alternate;
        }

        @keyframes cutinZoomPulse {
            from { transform: scale(0.97); }
            to { transform: scale(1.03); }
        }

        .cutin-card-frame {
            border: 4px solid var(--color-gold);
            border-radius: 20px;
            padding: 10px;
            background: #090714;
            box-shadow: 0 0 35px var(--color-primary), inset 0 0 20px rgba(0,240,255,0.5);
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .cutin-full-avatar-img {
            width: 200px;
            height: 200px;
            object-fit: cover;
            border-radius: 12px;
            image-rendering: pixelated;
            border: 2px solid var(--color-cyan);
            filter: drop-shadow(0 0 20px var(--color-gold));
        }

        .cutin-full-banner {
            background: linear-gradient(90deg, #ffb800, #ff2a75, #00f0ff, #ffb800);
            background-size: 300% 100%;
            color: #000;
            padding: 8px 32px;
            font-size: 1.8rem;
            font-weight: bold;
            border-radius: 50px;
            box-shadow: 0 0 30px var(--color-gold);
            letter-spacing: 2px;
            font-family: var(--font-pixel-jp);
            animation: shimmer 1s infinite linear;
        }

        @keyframes shimmer {
            0% { background-position: 0% 50%; }
            100% { background-position: 100% 50%; }
        }

        /* Cut-in Neon Visible Letters Display */
        .cutin-neon-letters-box {
            display: flex;
            gap: 8px;
            background: #000;
            border: 2px solid var(--color-gold);
            padding: 8px 16px;
            border-radius: 12px;
            box-shadow: 0 0 20px rgba(255, 184, 0, 0.6);
        }

        .cutin-neon-char {
            width: 44px;
            height: 44px;
            background: #110b24;
            border: 2px solid var(--color-cyan);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--color-gold);
            text-shadow: 0 0 8px var(--color-gold);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
        }

        .cutin-neon-char.unknown {
            border-color: #ff2a75;
            color: #ff2a75;
            animation: pulseUnknown 0.3s infinite alternate;
        }

        @keyframes pulseUnknown {
            from { opacity: 0.5; transform: scale(0.95); }
            to { opacity: 1; transform: scale(1.05); }
        }

        .cutin-full-sub {
            font-size: 1.1rem;
            color: #fff;
            background: rgba(0,0,0,0.8);
            padding: 6px 20px;
            border-radius: 20px;
            border: 1px solid var(--color-gold);
            box-shadow: 0 0 15px rgba(255,184,0,0.5);
        }

        /* BIG WIN Modal & Integrated Word Meaning Cards */
        .bigwin-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(10, 5, 20, 0.92);
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            backdrop-filter: blur(8px);
            padding: 20px;
        }

        .bigwin-box {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            max-width: 580px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            background: var(--card-bg);
            border: 3px solid var(--color-gold);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 0 40px rgba(255, 184, 0, 0.5);
        }

        @keyframes popIn {
            0% { transform: scale(0.3); opacity: 0; }
            100% { transform: scale(1); opacity: 1; }
        }

        .bigwin-title {
            font-family: var(--font-pixel-en);
            font-size: 2.5rem;
            color: var(--color-gold);
            text-shadow: 0 0 20px var(--color-gold), 0 0 40px var(--color-primary);
            animation: glowTitle 0.6s infinite alternate;
        }

        @keyframes glowTitle {
            from { transform: scale(1); filter: brightness(1); }
            to { transform: scale(1.06); filter: brightness(1.3); }
        }

        .bigwin-coins {
            font-family: var(--font-pixel-en);
            font-size: 2rem;
            color: var(--color-cyan);
            text-shadow: 0 0 15px var(--color-cyan);
        }

        .bigwin-meaning-card {
            background: #100c1d;
            border: 1px solid var(--color-purple);
            border-radius: 12px;
            padding: 14px;
            text-align: left;
            width: 100%;
            display: flex;
            flex-direction: column;
            gap: 6px;
            box-shadow: inset 0 0 10px rgba(157, 78, 221, 0.2);
        }

        .bigwin-meaning-title {
            color: var(--color-gold);
            font-size: 1.05rem;
            font-weight: bold;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .bigwin-meaning-text {
            color: var(--text-main);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        /* Symbol Colors */
        .sym-o { color: #ff2a75; }
        .sym-i { color: #fa8231; }
        .sym-chi { color: #ffb800; }
        .sym-po { color: #00f0ff; }
        .sym-n { color: #05ffa1; }
        .sym-ko { color: #9d4edd; }
        .sym-ma { color: #ff7f50; }
        .sym-tsu { color: #00d2d3; }
        .sym-pa { color: #ff6b81; }

        /* Collection Panel & Vivid Active Unlocked Styling */
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 12px;
        }

        .proverbs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 12px;
            max-height: 50vh;
            overflow-y: auto;
            padding-right: 6px;
            padding-top: 8px;
            margin-top: 8px;
        }

        .collection-card {
            background: #100c1d;
            border: 2px solid var(--card-border);
            border-radius: 12px;
            padding: 12px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: 6px;
            opacity: 0.35;
            filter: grayscale(1) brightness(0.6);
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            cursor: pointer;
        }

        .collection-card.unlocked {
            opacity: 1;
            filter: none;
            border-color: var(--color-gold);
            background: linear-gradient(135deg, #2f2254 0%, #17102e 100%);
            box-shadow: 0 0 16px rgba(255, 184, 0, 0.4), inset 0 0 12px rgba(157, 78, 221, 0.4);
            transform: translateY(-2px);
        }

        .collection-card.unlocked:hover {
            box-shadow: 0 0 25px rgba(255, 184, 0, 0.7), inset 0 0 15px rgba(0, 240, 255, 0.5);
            transform: translateY(-4px) scale(1.02);
        }

        .collection-icon-box {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            line-height: 1;
            margin-bottom: 2px;
            border-radius: 8px;
            overflow: hidden;
            filter: drop-shadow(0 0 4px rgba(0,0,0,0.8));
        }

        .collection-card.unlocked .collection-icon-box {
            filter: drop-shadow(0 0 8px var(--color-gold));
        }

        .collection-icon-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            image-rendering: pixelated;
        }

        .collection-card-title {
            font-size: 0.85rem;
            color: var(--text-sub);
            font-weight: bold;
            line-height: 1.2;
        }

        .collection-card.unlocked .collection-card-title {
            color: #ffffff;
            text-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
        }

        .collection-card-hint {
            font-size: 0.65rem;
            color: var(--text-dim);
            line-height: 1.2;
        }

        .collection-card.unlocked .collection-card-hint {
            color: var(--color-cyan);
            font-weight: bold;
            text-shadow: 0 0 6px rgba(0, 240, 255, 0.4);
        }

        /* High Quality Proverb Illustration Frame */
        .proverb-image-frame {
            width: 240px;
            height: 240px;
            margin: 0 auto 12px auto;
            border: 4px solid var(--color-gold);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 0 25px var(--color-primary), inset 0 0 15px rgba(0, 240, 255, 0.4);
            background: #090714;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .proverb-image-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            image-rendering: pixelated;
        }

        
        /* ========================================================
           📱 Comprehensive Mobile Responsive Design (max-width: 680px)
           ======================================================== */
        @media (max-width: 680px) {
            body {
                padding: 10px 8px;
            }

            .app-header {
                padding: 12px 14px;
                border-radius: 12px;
                margin-bottom: 12px;
            }

            .header-content {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }

            .portal-logo {
                font-size: 1.05rem;
                justify-content: center;
            }

            .user-status-bar {
                display: flex;
                flex-wrap: wrap;
                justify-content: center;
                gap: 6px;
            }

            .status-badge {
                padding: 4px 10px;
                font-size: 0.8rem;
            }

            .btn-top-menu {
                padding: 5px 10px;
                font-size: 0.78rem;
                flex-grow: 1;
                justify-content: center;
                margin-left: 0 !important;
            }

            .main-container {
                gap: 14px;
            }

            .arcade-card {
                padding: 14px;
                border-radius: 12px;
                gap: 12px;
            }

            .card-header-title {
                font-size: 0.95rem;
            }

            /* Timer Responsive */
            .timer-display-box {
                padding: 16px 10px;
            }

            .timer-clock {
                font-size: 3.2rem;
                letter-spacing: 2px;
            }

            .timer-mode-badge {
                font-size: 0.8rem;
                padding: 3px 10px;
            }

            .timer-tabs {
                gap: 4px;
            }

            .tab-btn {
                padding: 6px 10px;
                font-size: 0.78rem;
            }

            .timer-controls {
                gap: 6px;
            }

            .btn-action {
                padding: 10px 14px;
                font-size: 0.88rem;
            }

            /* Slot Machine Responsive */
            .slot-machine-frame {
                padding: 10px 6px;
            }

            .slot-grid {
                gap: 4px;
                padding: 6px;
            }

            .slot-cell {
                font-size: 1.25rem;
                border-radius: 4px;
            }

            .slot-controls {
                flex-direction: column;
                gap: 6px;
            }

            .spin-btn {
                padding: 12px;
                font-size: 0.95rem;
            }

            /* Collection Grid */
            .collection-grid {
                grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
                gap: 8px;
            }

            .collection-item {
                padding: 10px 8px;
            }

            .collection-icon {
                font-size: 1.8rem;
            }

            .collection-name {
                font-size: 0.75rem;
            }

            /* Modals Mobile Optimization */
            .modal-overlay {
                padding: 8px;
            }

            .modal-box {
                padding: 16px 12px;
                border-radius: 12px;
                max-height: 90vh;
                gap: 10px;
            }

            .modal-box h2, .modal-box h3 {
                font-size: 1.05rem;
                padding-right: 60px;
            }

            .modal-close-btn {
                top: 12px;
                right: 12px;
                font-size: 1rem;
            }

            .paytable-item {
                padding: 8px 10px;
                font-size: 0.82rem;
            }

            .paytable-payout {
                font-size: 0.72rem;
            }

            .shop-grid {
                grid-template-columns: 1fr;
            }

            .proverbs-grid {
                grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)) !important;
                gap: 8px !important;
            }

            #stamp-grid-container {
                grid-template-columns: 1fr !important;
            }

            .bigwin-modal-box {
                padding: 16px 12px;
                max-width: 95vw;
            }

            .bigwin-coins {
                font-size: 1.8rem;
            }

            .cutin-character-img {
                max-width: 80vw;
                max-height: 35vh;
            }

            .cutin-text-main {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 380px) {
            .timer-clock {
                font-size: 2.6rem;
            }
            .slot-cell {
                font-size: 1.1rem;
            }
            .proverbs-grid {
                grid-template-columns: 1fr !important;
            }
        }

        /* Modals: Meaning Modal has Highest z-index 3500 */
        .modal-overlay {
            position: fixed;
            top:0; left:0; right:0; bottom:0;
            background: rgba(5, 3, 12, 0.85);
            backdrop-filter: blur(4px);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            padding: 16px;
        }

        #meaning-modal {
            z-index: 3500 !important; /* Topmost modal */
        }

        .modal-box {
            background: var(--card-bg);
            border: 2px solid var(--color-purple);
            border-radius: 16px;
            max-width: 540px;
            width: 100%;
            max-height: 85vh;
            padding: 24px;
            box-shadow: 0 0 30px rgba(157, 78, 221, 0.4);
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            box-sizing: border-box;
        }
        .modal-box h2, .modal-box h3 {
            padding-right: 80px;
            line-height: 1.4;
            margin: 0;
        }

        .modal-close-btn {
            position: absolute;
            top: 16px; right: 16px;
            background: none;
            border: none;
            color: var(--text-sub);
            font-size: 1.2rem;
            cursor: pointer;
            z-index: 10;
            transition: color 0.2s;
        }
        .modal-close-btn:hover {
            color: #ffffff;
        }

        .paytable-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            max-height: 55vh;
            padding-right: 6px;
        }

        .paytable-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #100c1d;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--card-border);
            font-size: 0.9rem;
            transition: all 0.2s;
        }

        .paytable-item.unlocked-item {
            cursor: pointer;
            border-color: var(--color-purple);
        }

        .paytable-item.unlocked-item:hover {
            background: #1c1533;
            box-shadow: 0 0 10px rgba(157, 78, 221, 0.3);
        }

        .paytable-word { color: var(--color-gold); font-weight: bold; }
        .paytable-payout { color: var(--color-cyan); font-family: var(--font-pixel-en); font-size: 0.8rem; }

        /* Shop Grid items */
        .shop-grid {
            max-height: 55vh;
            overflow-y: auto;
            padding-right: 4px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .shop-item-card {
            background: #100c1d;
            border: 1px solid var(--card-border);
            border-radius: 10px;
            padding: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 8px;
        }

        .shop-item-card.equipped {
            border-color: var(--color-green);
            box-shadow: 0 0 10px rgba(5, 255, 161, 0.3);
        }

        /* Shrine Level Box */
        .shrine-box {
            background: linear-gradient(135deg, #2b1111, #120505);
            border: 2px solid #ff4d4d;
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        /* Interactive Toast Notification (z-index 3000) */
        .toast {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: 30px;
            font-family: var(--font-pixel-jp);
            font-size: 0.9rem;
            box-shadow: 0 0 20px rgba(255, 42, 117, 0.6);
            display: none;
            z-index: 3000;
            animation: floatUp 0.3s ease-out;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .toast:hover {
            transform: translate(-50%, -3px) scale(1.03);
            box-shadow: 0 0 30px rgba(255, 184, 0, 0.8);
        }

        @keyframes floatUp {
            from { transform: translate(-50%, 20px); opacity: 0; }
            to { transform: translate(-50%, 0); opacity: 1; }
        }

        footer {
            margin-top: 40px;
            font-size: 0.75rem;
            color: var(--text-dim);
            text-align: center;
        }