        /* --- CSS Variables (Responsive Design) --- */
        :root {
            /* Background colors */
            --bg-gradient-start: #0f2027;
            --bg-gradient-mid: #203a43;
            --bg-gradient-end: #2c5364;

            /* Clock sizes */
            --clock-font-size: 12vw;
            --date-font-size: 1.5vw;

            /* Weather display sizes */
            --weather-location-size: 0.9vw;
            --weather-temp-size: 2.5vw;
            --weather-desc-size: 1vw;
            --weather-sun-times-size: 0.8vw;

            /* Analog clock */
            --analog-clock-size: 300px;
            --hour-hand-width: 6px;
            --hour-hand-height: 80px;
            --minute-hand-width: 4px;
            --minute-hand-height: 110px;
            --second-hand-width: 2px;
            --second-hand-height: 120px;
            --clock-center-size: 16px;
            --clock-mark-transform-origin: 150px;

            /* Control panel */
            --control-padding: 20px 40px;
            --control-gap: 30px;
            --control-icon-size: 24px;
            --control-border-radius: 60px;
            --control-bottom: 30px;
            --slider-width: 80px;
            --slider-height: 4px;
            --slider-thumb-size: 14px;
            --divider-height: 40px;

            /* Buttons */
            --btn-padding: 10px 20px;
            --btn-border-radius: 25px;
            --btn-font-size: 12px;

            /* Celestial body (Sun/Moon) */
            --celestial-body-size: 80px;

            /* Tools panel */
            --tools-panel-top: 30px;
            --tools-panel-right: 30px;
            --tools-panel-min-width: 280px;
            --tools-panel-padding: 20px;
            --tools-panel-border-radius: 20px;
            --pomodoro-display-size: 32px;
            --tool-title-size: 14px;
            --tool-btn-padding: 8px 12px;
            --tool-btn-font-size: 12px;

            /* Shortcut hint */
            --shortcut-hint-bottom: 30px;
            --shortcut-hint-right: 30px;
            --shortcut-hint-font-size: 11px;
            --shortcut-hint-padding: 8px 16px;
            --shortcut-hint-border-radius: 20px;
        }

        /* --- CSS --- */
        body, html {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            background-color: #000;
            font-family: 'Inter', sans-serif;
            color: white;
            -webkit-user-select: none;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
        }

        /* Background area */
        #bg-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-mid), var(--bg-gradient-end));
            transition: background 3s ease;
        }

        /* Canvas for particle effects (stars) */
        #particle-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 3; /* Stars layer - above sun/moon */
            pointer-events: none;
        }

        /* Sky cover overlay for rainy weather */
        #sky-cover-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, #0a0e1a 0%, #141824 100%);
            opacity: 0;
            z-index: 4; /* Between stars (3) and clouds (5) */
            pointer-events: none;
            transition: opacity 2s ease;
        }

        /* Canvas for clouds */
        #cloud-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 5; /* Clouds layer (above moon/sun and stars) */
            pointer-events: none;
        }

        /* Screen brightness adjustment overlay */
        #dimmer-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: black;
            opacity: 0; /* Initial value is bright */
            z-index: 8; /* Above all visual elements */
            pointer-events: none; /* Make clicks pass through */
            transition: opacity 0.1s;
        }

        /* Clock area */
        #clock-container {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            transition: opacity 1s;
            cursor: default;
            z-index: 10;
        }

        #time {
            font-size: var(--clock-font-size);
            font-weight: 200;
            letter-spacing: 0.05em;
            text-shadow:
                /* Soft floating shadow layers - creates depth */
                0 2px 20px rgba(0, 0, 0, 0.35),
                0 4px 40px rgba(0, 0, 0, 0.25),
                0 8px 60px rgba(0, 0, 0, 0.15),
                /* Gentle surrounding shadow - frame effect */
                0 0 30px rgba(0, 0, 0, 0.4),
                0 0 50px rgba(0, 0, 0, 0.25),
                /* Subtle white glow - softness */
                0 0 40px rgba(255, 255, 255, 0.15),
                0 0 80px rgba(255, 255, 255, 0.08);

            /* Important: Fixed-width numbers */
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;

            /* Pure white text */
            color: #ffffff;
        }

        #date {
            font-size: var(--date-font-size);
            margin-top: -10px;
            opacity: 0.9;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            text-shadow:
                /* Soft floating shadow */
                0 2px 15px rgba(0, 0, 0, 0.35),
                0 4px 30px rgba(0, 0, 0, 0.2),
                /* Gentle surrounding shadow */
                0 0 20px rgba(0, 0, 0, 0.3),
                0 0 35px rgba(0, 0, 0, 0.15),
                /* Subtle white glow */
                0 0 25px rgba(255, 255, 255, 0.12);
            color: #ffffff;
        }

        /* Analog clock */
        #analog-clock {
            display: none;
            width: var(--analog-clock-size);
            height: var(--analog-clock-size);
            position: relative;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
            border: 3px solid rgba(255,255,255,0.3);
            box-shadow:
                0 0 40px rgba(255, 255, 255, 0.2),
                inset 0 0 40px rgba(0, 0, 0, 0.2);
            margin: 0 auto;
        }

        #analog-clock.visible {
            display: block;
        }

        .clock-center {
            position: absolute;
            width: var(--clock-center-size);
            height: var(--clock-center-size);
            background: radial-gradient(circle, #ffffff, #cccccc);
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 4;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }

        .clock-hand {
            position: absolute;
            bottom: 50%;
            left: 50%;
            transform-origin: bottom center;
            border-radius: 10px;
        }

        .hour-hand {
            width: var(--hour-hand-width);
            height: var(--hour-hand-height);
            background: linear-gradient(to top, rgba(255,255,255,0.9), rgba(255,255,255,0.7));
            margin-left: calc(var(--hour-hand-width) / -2);
            z-index: 3;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
        }

        .minute-hand {
            width: var(--minute-hand-width);
            height: var(--minute-hand-height);
            background: linear-gradient(to top, rgba(255,255,255,0.95), rgba(255,255,255,0.8));
            margin-left: calc(var(--minute-hand-width) / -2);
            z-index: 2;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
        }

        .second-hand {
            width: var(--second-hand-width);
            height: var(--second-hand-height);
            background: linear-gradient(to top, #ff6b6b, #ee5a6f);
            margin-left: calc(var(--second-hand-width) / -2);
            z-index: 1;
            box-shadow: 0 0 15px rgba(255, 107, 107, 0.6);
        }

        .clock-number {
            position: absolute;
            width: 100%;
            height: 100%;
            text-align: center;
            font-size: 18px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
        }

        .clock-number span {
            display: inline-block;
            position: absolute;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .clock-mark {
            position: absolute;
            width: 2px;
            height: 10px;
            background: rgba(255, 255, 255, 0.4);
            left: 50%;
            margin-left: -1px;
            transform-origin: center var(--clock-mark-transform-origin);
        }

        /* Control panel */
        #controls-wrapper {
            position: absolute;
            bottom: var(--control-bottom);
            left: 0;
            width: 100%;
            display: flex;
            justify-content: center;
            transition: opacity 0.8s ease, transform 0.8s ease;
            z-index: 10;
        }

        #controls {
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: var(--control-padding);
            border-radius: var(--control-border-radius);
            display: flex;
            gap: var(--control-gap);
            align-items: center;
            box-shadow:
                0 10px 40px rgba(0,0,0,0.6),
                0 0 60px rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.15);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-5px); }
        }

        .fade-out {
            opacity: 0;
            transform: translateY(20px); /* Fade out downward */
            pointer-events: none;
        }

        /* Sound and brightness controls */
        .control-group {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        
        .icon {
            font-size: var(--control-icon-size);
            cursor: pointer;
            opacity: 0.4;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            filter: drop-shadow(0 0 0px transparent);
        }
        .icon:hover {
            opacity: 0.9;
            transform: scale(1.2) rotate(5deg);
            filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
        }
        .icon.active {
            opacity: 1;
            color: #ffd700;
            text-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
            filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.6));
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        /* Slider customization */
        input[type="range"] {
            -webkit-appearance: none;
            width: var(--slider-width);
            height: var(--slider-height);
            background: rgba(255,255,255,0.2);
            border-radius: 2px;
            outline: none;
            cursor: pointer;
            transition: all 0.3s;
        }
        input[type="range"]:hover {
            background: rgba(255,255,255,0.3);
        }
        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: var(--slider-thumb-size);
            height: var(--slider-thumb-size);
            border-radius: 50%;
            background: linear-gradient(135deg, #ffffff, #e0e0e0);
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        }
        input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.4);
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
        }
        input[type="range"]::-webkit-slider-thumb:active {
            transform: scale(1.2);
        }

        .divider { width: 1px; height: var(--divider-height); background: rgba(255,255,255,0.1); }

        /* Switch button */
        .btn-text {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            color: rgba(255,255,255,0.7);
            padding: var(--btn-padding);
            border-radius: var(--btn-border-radius);
            cursor: pointer;
            font-size: var(--btn-font-size);
            font-weight: 500;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            box-shadow: 0 0 0 rgba(255,255,255,0);
        }
        .btn-text:hover {
            background: rgba(255,255,255,0.15);
            color: white;
            border-color: rgba(255,255,255,0.5);
            transform: scale(1.05);
            box-shadow: 0 4px 15px rgba(255,255,255,0.2);
        }
        .btn-text.active {
            background: linear-gradient(135deg, #ffffff, #e0e0e0);
            color: #000;
            border-color: white;
            font-weight: bold;
            transform: scale(1.02);
            box-shadow: 0 0 30px rgba(255,255,255,0.5);
        }

        /* Sun and Moon */
        #celestial-body {
            position: absolute;
            width: var(--celestial-body-size);
            height: var(--celestial-body-size);
            border-radius: 50%;
            z-index: 2; /* Above background, behind stars and clouds */
            transition: all 3s ease;
            pointer-events: none;
        }

        #celestial-body.sun {
            background: radial-gradient(circle, #ffffff 0%, #fffef8 30%, #fffbf0 70%, #fff8e1 100%);
            box-shadow:
                0 0 40px rgba(255, 255, 255, 0.9),
                0 0 80px rgba(255, 252, 240, 0.6),
                0 0 120px rgba(255, 248, 220, 0.4);
        }

        /* 太陽の日暈（ハロー）- 薄い光の輪 */
        /* 朝〜午前・午後の時間帯のみ表示 */
        #celestial-body.sun.show-halo::after {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            filter: blur(20px);
            pointer-events: none;
            opacity: 0.5;
        }

        #celestial-body.moon {
            background: radial-gradient(circle, #ffffff 0%, #e8eaf6 50%, #c5cae9 100%);
            box-shadow:
                0 0 30px rgba(255, 255, 255, 0.6),
                0 0 60px rgba(197, 202, 233, 0.4),
                inset -10px -10px 20px rgba(0, 0, 0, 0.1);
        }

        /* Tools panel (Pomodoro and Alarm) */
        #tools-panel {
            position: absolute;
            top: var(--tools-panel-top);
            right: var(--tools-panel-right);
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border-radius: var(--tools-panel-border-radius);
            padding: var(--tools-panel-padding);
            min-width: var(--tools-panel-min-width);
            z-index: 15;
            border: 1px solid rgba(255,255,255,0.1);
            opacity: 0;
            transform: translateX(350px);
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            pointer-events: none;
        }

        #tools-panel.visible {
            opacity: 1;
            transform: translateX(0);
            pointer-events: auto;
        }

        .tool-section {
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .tool-section:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .tool-title {
            font-size: var(--tool-title-size);
            font-weight: 600;
            margin-bottom: 12px;
            color: rgba(255,255,255,0.9);
            letter-spacing: 0.05em;
        }

        .pomodoro-display {
            font-size: var(--pomodoro-display-size);
            font-weight: 200;
            text-align: center;
            margin: 15px 0;
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
            color: #fff;
        }

        .pomodoro-status {
            text-align: center;
            font-size: 12px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 10px;
        }

        .tool-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
        }

        .tool-btn {
            flex: 1;
            padding: var(--tool-btn-padding);
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 12px;
            color: rgba(255,255,255,0.8);
            font-size: var(--tool-btn-font-size);
            cursor: pointer;
            transition: all 0.3s;
        }

        .tool-btn:hover {
            background: rgba(255,255,255,0.2);
            border-color: rgba(255,255,255,0.4);
        }

        .tool-btn.active {
            background: rgba(76, 175, 80, 0.3);
            border-color: rgba(76, 175, 80, 0.6);
            color: #4CAF50;
        }

        .alarm-input {
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 8px;
            padding: 8px 12px;
            color: #fff;
            font-size: 14px;
            width: 100%;
            margin-bottom: 10px;
        }

        .alarm-input:focus {
            outline: none;
            border-color: rgba(255,255,255,0.4);
            background: rgba(255,255,255,0.15);
        }

        .shortcut-hint {
            position: absolute;
            bottom: var(--shortcut-hint-bottom);
            right: var(--shortcut-hint-right);
            background: rgba(0, 0, 0, 0.5);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            padding: var(--shortcut-hint-padding);
            border-radius: var(--shortcut-hint-border-radius);
            font-size: var(--shortcut-hint-font-size);
            color: rgba(255,255,255,0.5);
            z-index: 15;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .shortcut-hint.show {
            opacity: 1;
        }

        /* ========== RESPONSIVE DESIGN - Media Queries ========== */

        /* Tablet (768px and below) */
        @media screen and (max-width: 768px) {
            :root {
                --clock-font-size: 15vw;
                --date-font-size: 3vw;
                --weather-location-size: 2vw;
                --weather-temp-size: 5vw;
                --weather-desc-size: 2vw;
                --weather-sun-times-size: 1.5vw;

                --analog-clock-size: 250px;
                --hour-hand-height: 65px;
                --minute-hand-height: 90px;
                --second-hand-height: 100px;
                --clock-mark-transform-origin: 125px;

                --control-padding: 15px 25px;
                --control-gap: 20px;
                --control-icon-size: 20px;
                --control-border-radius: 40px;
                --control-bottom: 20px;
                --slider-width: 60px;

                --btn-padding: 8px 15px;
                --btn-font-size: 11px;

                --celestial-body-size: 60px;

                --tools-panel-top: 15px;
                --tools-panel-right: 15px;
                --tools-panel-min-width: 240px;
                --tools-panel-padding: 15px;
                --tool-title-size: 13px;
                --pomodoro-display-size: 28px;

                --shortcut-hint-bottom: 15px;
                --shortcut-hint-right: 15px;
                --shortcut-hint-font-size: 10px;
                --shortcut-hint-padding: 6px 12px;
            }
        }

        /* Smartphone Portrait (480px and below) */
        @media screen and (max-width: 480px) and (orientation: portrait) {
            :root {
                --clock-font-size: 18vw;
                --date-font-size: 4vw;
                --weather-location-size: 3vw;
                --weather-temp-size: 8vw;
                --weather-desc-size: 3.5vw;
                --weather-sun-times-size: 2.5vw;

                --analog-clock-size: 200px;
                --hour-hand-width: 5px;
                --hour-hand-height: 50px;
                --minute-hand-width: 3px;
                --minute-hand-height: 70px;
                --second-hand-height: 80px;
                --clock-center-size: 12px;
                --clock-mark-transform-origin: 100px;

                --control-padding: 12px 20px;
                --control-gap: 15px;
                --control-icon-size: 18px;
                --control-border-radius: 30px;
                --control-bottom: 15px;
                --slider-width: 50px;
                --slider-height: 6px;
                --slider-thumb-size: 18px;
                --divider-height: 30px;

                --btn-padding: 6px 12px;
                --btn-border-radius: 20px;
                --btn-font-size: 10px;

                --celestial-body-size: 50px;

                --tools-panel-top: 10px;
                --tools-panel-right: 10px;
                --tools-panel-min-width: auto;
                --tools-panel-padding: 12px;
                --tools-panel-border-radius: 15px;
                --pomodoro-display-size: 24px;
                --tool-title-size: 12px;
                --tool-btn-padding: 6px 10px;
                --tool-btn-font-size: 11px;

                --shortcut-hint-font-size: 0px;
            }

            /* Additional styles for portrait mode */
            #controls {
                flex-wrap: wrap;
            }

            .divider {
                display: none;
            }

            #tools-panel {
                left: 10px;
                right: 10px;
                width: calc(100% - 20px);
                min-width: unset;
            }

            .shortcut-hint {
                display: none;
            }

            .icon {
                min-width: 44px;
                min-height: 44px;
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .tool-btn, .btn-text {
                min-height: 44px;
            }
        }

        /* Smartphone Landscape (Height 480px and below) */
        @media screen and (max-height: 480px) and (orientation: landscape) {
            :root {
                --clock-font-size: 10vw;
                --date-font-size: 2vw;
                --weather-location-size: 1.5vw;
                --weather-temp-size: 4vw;
                --weather-desc-size: 1.8vw;
                --weather-sun-times-size: 1.3vw;

                --analog-clock-size: 150px;
                --hour-hand-width: 4px;
                --hour-hand-height: 40px;
                --minute-hand-width: 3px;
                --minute-hand-height: 55px;
                --second-hand-height: 60px;
                --clock-center-size: 10px;
                --clock-mark-transform-origin: 75px;

                --control-padding: 8px 15px;
                --control-gap: 12px;
                --control-icon-size: 16px;
                --control-border-radius: 25px;
                --control-bottom: 10px;
                --slider-width: 50px;
                --slider-height: 6px;
                --slider-thumb-size: 16px;
                --divider-height: 30px;

                --btn-padding: 5px 10px;
                --btn-border-radius: 18px;
                --btn-font-size: 9px;

                --celestial-body-size: 40px;

                --tools-panel-top: 10px;
                --tools-panel-right: 10px;
                --tools-panel-min-width: 200px;
                --tools-panel-padding: 10px;
                --tools-panel-border-radius: 15px;
                --pomodoro-display-size: 20px;
                --tool-title-size: 11px;
                --tool-btn-padding: 5px 8px;
                --tool-btn-font-size: 10px;
            }

            /* Additional styles for landscape mode */
            #weather-display {
                margin-top: 8px !important;
            }

            #controls {
                padding: var(--control-padding);
            }

            .icon {
                min-width: 36px;
                min-height: 36px;
                display: flex;
                align-items: center;
                justify-content: center;
            }

            #tools-panel {
                max-height: calc(100vh - 20px);
                overflow-y: auto;
            }

            .tool-section {
                margin-bottom: 12px;
                padding-bottom: 12px;
            }

            .pomodoro-display {
                margin: 8px 0;
            }

            .pomodoro-status {
                font-size: 10px;
                margin-bottom: 6px;
            }

            .alarm-input {
                padding: 5px 8px;
                font-size: 12px;
                margin-bottom: 6px;
            }

            .shortcut-hint {
                display: none;
            }
        }

        /* Small Smartphone Portrait (375px and below) */
        @media screen and (max-width: 375px) and (orientation: portrait) {
            :root {
                --clock-font-size: 20vw;
                --control-padding: 10px 15px;
                --control-gap: 10px;
                --control-icon-size: 16px;
                --slider-width: 45px;
            }
        }


/* Weather display inline styles moved from HTML */
#weather-display {
    margin-top: 15px;
    opacity: 0;
    transition: opacity 1s;
}

#weather-location {
    font-size: 0.9vw;
    opacity: 0.7;
    margin-bottom: 8px;
    letter-spacing: 0.15em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

#weather-temp {
    font-size: 2.5vw;
    font-weight: 200;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

#weather-desc {
    font-size: 1vw;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

#sun-times {
    font-size: 0.8vw;
    opacity: 0.6;
    margin-top: 5px;
    letter-spacing: 0.05em;
}

/* Dimmer icon specific style */
.control-group .icon.dimmer-icon {
    cursor: default;
    opacity: 0.8;
}

/* Initial loading state - hide elements until JavaScript initialization */
body:not(.app-loaded) #celestial-body,
body:not(.app-loaded) #particle-canvas,
body:not(.app-loaded) #cloud-canvas,
body:not(.app-loaded) #sky-cover-overlay {
    opacity: 0 !important;
    visibility: hidden !important;
}
