:root {
    --bg-main: #121b22; --text-color: #ffffff; --accent-color: #007aff;
    --icon-font-size: 14px; --icon-spacing: 0px; 
    --frame-size: 60px; --svg-size: 28px; --svg-opacity: 1; 
    --frame-border-radius: 22%; --list-border-radius: 22px; 
    --frame-bg: none; --frame-bg-color: transparent; 
    --svg-color: #ffffff; --btn-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
    --list-bg-color: rgba(255, 255, 255, 0.1); --list-text-color: #ffffff; --list-svg-color: #ffffff;
    --list-bg-rgba: rgba(255, 255, 255, 0.1); /* Biến mới cho Opacity list */
    --tilt-x: 0px; --tilt-y: 0px;
    --title-size: 22px; --title-spacing: 0.5px; --label-display: block;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, sans-serif; -webkit-tap-highlight-color: transparent; }
body { background-color: var(--bg-main); background-size: cover; background-position: center; background-attachment: fixed; color: var(--text-color); min-height: 100vh; overflow-x: hidden; transition: background-color 0.3s ease; }

.app-header { text-align: center; padding: 60px 0 20px 0; font-size: var(--title-size); font-weight: bold; letter-spacing: var(--title-spacing); text-shadow: 0 2px 5px rgba(0,0,0,0.5); transition: font-size 0.2s, letter-spacing 0.2s; }

/* Grid Mode */
.grid-layout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; padding: 20px; max-width: 600px; margin: 0 auto; position: relative; }
.glass-btn { display: flex; flex-direction: column; align-items: center; gap: 8px; text-decoration: none; color: var(--text-color); user-select: none; }
.icon-box {
    width: var(--frame-size); height: var(--frame-size); background-image: var(--frame-bg); background-color: var(--frame-bg-color);
    background-size: cover; background-position: center; background-repeat: no-repeat; border-radius: var(--frame-border-radius);
    display: flex; justify-content: center; align-items: center; box-shadow: var(--btn-shadow);
    transition: transform 0.1s ease, box-shadow 0.2s ease; transform: perspective(500px) translate3d(var(--tilt-x), var(--tilt-y), 0);
}
.icon-box svg { width: var(--svg-size); height: var(--svg-size); fill: var(--svg-color); color: var(--svg-color); opacity: var(--svg-opacity); position: relative; z-index: 2; transform: perspective(500px) translate3d(calc(var(--tilt-x) * 1.5), calc(var(--tilt-y) * 1.5), 10px); }
.glass-btn:active .icon-box { transform: scale(0.92); }

/* FIX: Cỡ chữ và dãn chữ Icon */
.label { font-size: var(--icon-font-size, 14px); font-weight: 500; letter-spacing: var(--icon-spacing, 0px); text-align: center; text-shadow: 0 1px 3px rgba(0,0,0,0.5); display: var(--label-display); transition: font-size 0.2s, letter-spacing 0.2s; }

.glass-active .icon-box { background: rgba(255,255,255,0.15); backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px); border: 1px solid rgba(255,255,255,0.2); }
.glass-active.list-mode .glass-btn { background: rgba(0,0,0,0.3); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.1); }

@keyframes jiggle { 0% { transform: rotate(-2deg); } 50% { transform: rotate(2deg); } 100% { transform: rotate(-2deg); } }
.edit-mode .glass-btn { animation: jiggle 0.3s infinite; pointer-events: none; }
.edit-mode .glass-btn.dragging { opacity: 0.5; animation: none; transform: scale(1.1); }
.edit-mode .grid-layout { background: rgba(255,255,255,0.05); border: 2px dashed rgba(255,255,255,0.3); border-radius: 20px; }

/* FIX: Thay thế var(--list-bg-color) bằng var(--list-bg-rgba) cho độ đậm nhạt */
.app-container.list-mode .grid-layout { grid-template-columns: 1fr; gap: 12px; }
.app-container.list-mode .glass-btn { 
    flex-direction: row; justify-content: flex-start; align-items: center; gap: 15px; 
    background: var(--list-bg-rgba); padding: 12px 18px; 
    border-radius: var(--list-border-radius); color: var(--list-text-color); box-shadow: var(--btn-shadow); 
}
.app-container.list-mode:not(.list-frame-active) .icon-box { 
    background: transparent !important; box-shadow: none !important; 
    width: var(--svg-size); height: var(--svg-size); transform: none; border-radius: 0; 
}
.app-container.list-mode:not(.list-frame-active) .icon-box svg { 
    fill: var(--list-svg-color); color: var(--list-svg-color); width: 100%; height: 100%; transform: none; opacity: var(--svg-opacity); 
}
.app-container.list-mode .label { text-align: left; }
.app-container.list-mode.list-frame-active .glass-btn { background: var(--list-bg-rgba); box-shadow: none; }
.app-container.list-mode.list-frame-active .icon-box {
    width: var(--frame-size); height: var(--frame-size); min-width: var(--frame-size); 
    background-image: var(--frame-bg) !important; background-color: var(--frame-bg-color) !important;
    background-size: cover; background-position: center; background-repeat: no-repeat;
    border-radius: var(--frame-border-radius); box-shadow: var(--btn-shadow) !important; 
    transform: perspective(500px) translate3d(var(--tilt-x), var(--tilt-y), 0); display: flex; justify-content: center; align-items: center;
}
.app-container.list-mode.list-frame-active .icon-box svg { fill: var(--svg-color); color: var(--svg-color); width: var(--svg-size); height: var(--svg-size); opacity: var(--svg-opacity); }

/* Giao diện Setting Dark Mode */
.settings-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: opacity 0.3s ease; z-index: 998; }
.settings-overlay.open { opacity: 1; visibility: visible; }
.settings-fab { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; border-radius: 25px; background: var(--accent-color); color: white; border: none; box-shadow: 0 4px 12px rgba(0,0,0,0.3); z-index: 100; display: flex; justify-content: center; align-items: center; font-size: 24px; cursor: pointer; }
.settings-drawer { position: fixed; top: calc(env(safe-area-inset-top) + 15px); right: -120%; width: 85%; max-width: 360px; max-height: 85vh; border-radius: 20px; background: rgba(30,30,30,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: -5px 0 25px rgba(0,0,0,0.5); z-index: 999; transition: right 0.4s cubic-bezier(0.1, 0.7, 0.1, 1), background 0.3s ease, backdrop-filter 0.3s ease; display: flex; flex-direction: column; color: white; overflow: hidden; }
.settings-drawer.open { right: 15px; }
.settings-drawer.adjusting { background: rgba(30, 30, 30, 0.1) !important; backdrop-filter: blur(0px) !important; -webkit-backdrop-filter: blur(0px) !important; box-shadow: none !important; }
.settings-header { padding: 15px 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(255,255,255,0.1); }
.settings-header button { background: rgba(255,255,255,0.2); border: none; color: white; width: 30px; height: 30px; border-radius: 50%; cursor: pointer; }
.settings-body { padding: 20px 20px 60px 20px; overflow-y: auto; flex: 1; }
.setting-group { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.highlight-box { background: rgba(255,255,255,0.05); padding: 15px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); }
.feature-toggles { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; font-size: 13px; }
.feature-toggles label { display: flex; justify-content: space-between; align-items: center; }
.section-title { margin: 20px 0 10px; font-size: 16px; color: var(--accent-color); border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 5px; }
.slider-item { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.slider-item input[type=range] { flex: 1; }
.slider-label { width: 95px; font-size: 12px; opacity: 0.8; } 

/* FIX 100%: Nút kéo của thanh trượt luôn trong suốt, mất ô vuông ở Light mode */
input[type=range] { -webkit-appearance: none; width: 100%; background: transparent; }
input[type=range]::-webkit-slider-runnable-track { width: 100%; height: 6px; background: rgba(255,255,255,0.2); border-radius: 3px; }
input[type=range]::-webkit-slider-thumb { 
    -webkit-appearance: none; 
    height: 25px; width: 25px; 
    background: url('../Theme/icon-dot.png') center/contain no-repeat transparent !important; 
    border: 0px solid transparent !important; 
    border-radius: 0 !important; 
    box-shadow: none !important; 
    margin-top: -9.5px; cursor: pointer; 
}

.slider-item input[type="color"] { height: 28px; padding: 0; border: none; background: none; border-radius: 5px; cursor: pointer; }
.layout-buttons { display: flex; gap: 10px; }
.layout-btn { flex: 1; padding: 10px 0; background: rgba(255,255,255,0.1); border: 1px solid transparent; color: white; border-radius: 8px; cursor: pointer; font-weight: 500; transition: all 0.2s; }
.layout-btn.active { background: var(--accent-color); font-weight: bold; }
.config-actions { display: flex; gap: 5px; margin-bottom: 20px; }
.action-btn { flex: 1; padding: 8px; background: rgba(255,255,255,0.15); border: none; color: white; border-radius: 8px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 5px; font-size: 13px; font-weight: 500; }
.shadow-item { border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.shadow-header { display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; background: rgba(0,0,0,0.2); }
.shadow-drawer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; padding: 0 15px; background: rgba(0,0,0,0.1); }
.shadow-drawer.active { max-height: 400px; padding: 15px; }
select { width: 100%; padding: 10px; border-radius: 8px; background: rgba(0,0,0,0.3); color: white; border: 1px solid rgba(255,255,255,0.2); font-size: 14px; }
.info-btn { position: absolute; bottom: 20px; right: 20px; background: none; border: none; font-size: 24px; cursor: pointer; opacity: 0.8; z-index: 10; }

/* Info Popup macOS */
.info-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); opacity: 0; visibility: hidden; transition: opacity 0.3s ease; z-index: 2000; backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px); }
.info-overlay.show { opacity: 1; visibility: visible; }
.macos-window { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.9); width: 85%; max-width: 320px; background: rgba(30, 30, 32, 0.85); border-radius: 14px; box-shadow: 0 20px 40px rgba(0,0,0,0.5); z-index: 2001; border: 1px solid rgba(255,255,255,0.15); opacity: 0; visibility: hidden; transition: all 0.3s ease; backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px); color: white; }
.macos-window.show { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }
.macos-header { padding: 12px 15px; display: flex; gap: 8px; align-items: center; border-bottom: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.05); border-radius: 14px 14px 0 0; }
.macos-btn { width: 20px; height: 20px; border-radius: 50%; cursor: pointer; display: block; object-fit: cover; }
.close-btn:hover { opacity: 0.8; }
.macos-body { padding: 25px 20px; text-align: center; }
.macos-body h3 { margin-bottom: 8px; font-size: 18px; font-weight: 600; }
.macos-body a { color: var(--accent-color); text-decoration: none; font-weight: bold; }
.info-desc { font-size: 13px; margin-top: 12px; opacity: 0.75; line-height: 1.5; }
.dev-text { color: #ffffff; font-weight: bold;}

/* AUTO LIGHT MODE */
@media (prefers-color-scheme: light) {
    .settings-drawer { background: rgba(245, 245, 247, 0.95); color: #000; box-shadow: -5px 0 25px rgba(0,0,0,0.2); }
    .settings-header { border-bottom: 1px solid rgba(0,0,0,0.1); }
    .settings-header button { background: rgba(0,0,0,0.1); color: #000; }
    .highlight-box { background: rgba(0,0,0,0.04); border: 1px solid rgba(0,0,0,0.05); }
    .action-btn, .layout-btn { background: rgba(0,0,0,0.05); color: #000; border: 1px solid rgba(0,0,0,0.05); }
    .layout-btn.active { color: white; }
    select { background: rgba(0,0,0,0.05); color: #000; border: 1px solid rgba(0,0,0,0.1); }
    input[type=range]::-webkit-slider-runnable-track { background: rgba(0,0,0,0.15); }
    .shadow-item { border: 1px solid rgba(0,0,0,0.1); }
    .shadow-header { background: rgba(0,0,0,0.03); border-bottom: 1px solid rgba(0,0,0,0.05); }
    .shadow-drawer { background: rgba(0,0,0,0.01); }
    
    .macos-window { background: rgba(245, 245, 247, 0.95); border: 1px solid rgba(0,0,0,0.1); color: #000; }
    .macos-header { background: rgba(0,0,0,0.03); border-bottom: 1px solid rgba(0,0,0,0.1); }
    .info-desc { opacity: 0.8; }
    .dev-text { color: #ffffff; background: #000; padding: 2px 6px; border-radius: 5px;}
}