:root {
    --text-color: #fff;
    --text-shadow: 0 2px 6px rgba(0,0,0,0.8);
    --panel-bg: rgba(0, 0, 0, 0.5);
    --petal-color: #ffd1dc;
    --panel-border: rgba(255, 255, 255, 0.2);
    --panel-highlight: #ffb7c5;
}

body, html { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; font-family: "Segoe UI", "Roboto", sans-serif; background-color: #000; }
button, input { font: inherit; }

.spring-background {
    position: relative; width: 100vw; height: 100vh;
    overflow: hidden;
    touch-action: none;
}

.background-layer {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity 1.8s ease, transform 6s ease;
}

.background-layer.active {
    opacity: 1;
    transform: scale(1);
}

#time-light-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 10;
    background:
        radial-gradient(circle at 50% 18%, rgba(255, 244, 225, var(--light-overlay-alpha, 0.08)) 0%, rgba(255, 244, 225, 0) 52%),
        linear-gradient(to bottom, rgba(12, 18, 34, var(--shade-overlay-alpha, 0.12)), rgba(12, 18, 34, calc(var(--shade-overlay-alpha, 0.12) * 0.68)));
    transition: background 1.4s ease;
}

canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 20; }

#clock-container {
    position: absolute; bottom: 5vh; left: 5vw; 
    color: var(--text-color); text-align: left;
    text-shadow: var(--text-shadow); pointer-events: auto;
    animation: fadeInClock 2s ease; transition: opacity 0.5s ease, transform 0.2s ease;
    transform: translate(var(--clock-offset-x, 0px), var(--clock-offset-y, 0px)) scale(var(--clock-scale, 1));
    transform-origin: left bottom;
    cursor: grab;
    user-select: none;
    touch-action: none;
    z-index: 100;
}
#clock-container.dragging {
    cursor: grabbing;
}
#info-cluster { display: flex; align-items: center; gap: 15px; margin-bottom: 5px; opacity: 0.9; }
#weather-icon-display { font-size: 1.5rem; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.8)); }
#quote-display { font-size: 0.95rem; font-style: italic; max-width: 400px; font-weight: 500; }
#date-display { font-size: 1.1rem; letter-spacing: 1px; font-weight: 600; }
#time-display { font-size: 3.5rem; font-weight: 300; letter-spacing: 2px; margin-top: -5px; }
@keyframes fadeInClock { from { opacity: 0; } to { opacity: 1; } }
#toggle-clock-btn {
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--panel-border);
    color: #fff;
    padding: 5px 15px;
    border-radius: 15px;
    cursor: pointer;
    margin-top: 10px;
    font-size: 0.75rem;
    font-weight: bold;
    backdrop-filter: blur(4px);
}
#clock-resize-handle {
    position: absolute;
    right: -4px;
    bottom: -6px;
    width: 18px;
    height: 18px;
    border: 0;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.28);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.56rem;
    line-height: 1;
    cursor: nwse-resize;
    display: grid;
    place-items: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    transform: scale(0.85);
    pointer-events: none;
}
#clock-container:hover #clock-resize-handle,
#clock-container:focus-within #clock-resize-handle,
#clock-container.dragging #clock-resize-handle {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}
#clock-container.hidden #info-cluster,
#clock-container.hidden #date-display,
#clock-container.hidden #time-display,
#clock-container.hidden #toggle-clock-btn,
#clock-container.hidden #clock-resize-handle {
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
}
#info-cluster,
#date-display,
#time-display,
#toggle-clock-btn,
#clock-resize-handle {
    transition: opacity 0.35s ease, transform 0.35s ease;
}

#wind-gust-container { position: fixed; z-index: 9999; pointer-events: none; opacity: 0; transition: opacity 0.3s ease; }
#wind-quote-window { padding: 10px; background: rgba(0, 0, 0, 0.7); border: 2px solid #ffb6c1; color: #ff69b4; border-radius: 8px; font-weight: bold; margin-bottom: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
#wind-gauge-container { width: 100%; height: 6px; border: 1px solid #ffb6c1; border-radius: 4px; padding: 1px; background: rgba(0,0,0,0.5); }
#wind-gauge-bar { width: 0%; height: 100%; background-color: #ff69b4; border-radius: 3px; transition: width 2s linear; }

#settings-toggle-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 1.5rem;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    line-height: 1;
    box-sizing: border-box;
    cursor: pointer;
    z-index: 1001;
    opacity: 0.7;
    transition: all 0.3s;
    background: rgba(0,0,0,0.5);
    border-radius: 50%;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    backdrop-filter: blur(4px);
    border: 1px solid var(--panel-border);
    color: #fff;
}
#settings-toggle-btn:hover { opacity: 1; transform: rotate(45deg); }
#settings-toggle-btn.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
}
#settings-panel {
    position: fixed; bottom: 80px; right: 20px; background-color: var(--panel-bg); backdrop-filter: blur(10px);
    border: 1px solid var(--panel-border); border-radius: 15px; padding: 20px; z-index: 1000;
    color: #fff; width: 252px; box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    transform: translateY(20px) scale(0.95); opacity: 0; transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); pointer-events: none;
}
#settings-panel.visible { transform: translateY(0) scale(1); opacity: 1; pointer-events: all; }
.settings-header { font-weight: bold; margin-bottom: 12px; border-bottom: 2px solid var(--panel-border); padding-bottom: 5px; font-size: 0.95rem; color: #fff; }
.setting-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 0.85rem; font-weight: 500; }
.setting-item-top { align-items: flex-start; }
.background-rotation-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.background-inline-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.24);
    color: #fff;
    padding: 0;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.background-inline-btn:hover {
    background-color: rgba(255, 255, 255, 0.34);
    border-color: var(--panel-highlight);
    transform: translateY(-1px);
}

.switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(255,255,255,0.3); transition: .4s; border-radius: 20px; }
.slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,0.3); }
input:checked + .slider { background-color: var(--panel-highlight); }
input:checked + .slider:before { transform: translateX(16px); }

.burst-petal {
    position: absolute; background: var(--petal-color);
    border: 1px solid rgba(0, 0, 0, 0.7);
    pointer-events: none; opacity: 0.9; box-shadow: 0 2px 4px rgba(0,0,0,0.3); z-index: 30;
}

input[type="range"] {
    width: 108px;
    accent-color: var(--panel-highlight);
}

.size-mode-group {
    display: inline-flex;
    gap: 4px;
    padding: 3px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
}

.size-mode-btn {
    min-width: 42px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: rgba(255, 255, 255, 0.78);
    padding: 6px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.size-mode-btn.active {
    background: rgba(255, 183, 197, 0.92);
    color: #2b1620;
}

.size-mode-btn:not(.active):hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.size-mode-btn:focus-visible {
    outline: 2px solid rgba(255, 183, 197, 0.9);
    outline-offset: 2px;
}

.preset-group {
    display: inline-flex;
    gap: 4px;
    padding: 3px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    width: 108px;
}

.preset-btn {
    min-width: 0;
    flex: 1 1 0;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: rgba(255, 255, 255, 0.78);
    padding: 6px 0;
    font-size: 0.68rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.preset-btn.active {
    background: rgba(255, 183, 197, 0.92);
    color: #2b1620;
}

.preset-btn:not(.active):hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

@media (max-width: 768px) {
    #clock-container {
        left: 16px;
        right: 16px;
        bottom: 80px;
    }

    #quote-display {
        max-width: 70vw;
    }

    #time-display {
        font-size: 2.6rem;
    }

    #settings-panel {
        right: 16px;
        left: 16px;
        bottom: 84px;
        width: auto;
    }

    #settings-toggle-btn {
        right: 16px;
        bottom: 16px;
        width: 48px;
        height: 48px;
        font-size: 1.35rem;
    }
}