/* CSS Variables untuk Dark / Light Mode */
:root {
    --bg-color: #e9ecef;
    --text-color: #2c3e50;
    --target-text: #7f8c8d;
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: rgba(0, 0, 0, 0.15);
    --input-bg: rgba(255, 255, 255, 0.8);
    --string-color: linear-gradient(to right, #7f8c8d, #bdc3c7, #7f8c8d);
    --scroll-track: rgba(0,0,0,0.05);
    --scroll-thumb: rgba(0,0,0,0.2);
    --btn-active: #3498db;
}

body.dark-mode {
    --bg-color: #121418;
    --text-color: #f1f2f6;
    --target-text: #bdc3c7;
    --glass-bg: rgba(30, 34, 40, 0.85);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: rgba(0, 0, 0, 0.5);
    --input-bg: rgba(0, 0, 0, 0.5);
    --string-color: linear-gradient(to right, #2c3e50, #4ca1af, #2c3e50);
    --scroll-track: rgba(255,255,255,0.05);
    --scroll-thumb: rgba(255,255,255,0.2);
}

body, html {
    margin: 0; padding: 0; height: 100%;
    background-color: var(--bg-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    user-select: none; overflow: hidden;
    touch-action: manipulation;
    transition: background-color 0.4s ease; 
}

/* ----- BACKGROUND TASBIH FULL LAYAR ----- */
#tasbih-bg {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    display: flex; justify-content: center; z-index: 1; 
}

.string-line {
    position: absolute; top: 0; bottom: 0; left: 50%;
    transform: translateX(-50%); width: 8px;
    background: var(--string-color);
    box-shadow: 0 0 10px rgba(0,0,0,0.4); z-index: 0;
    transition: background 0.3s;
}

#bead-string {
    position: relative; z-index: 1; display: flex;
    flex-direction: column; align-items: center;
    width: 100px; margin-top: 40vh;
}

.bead {
    position: relative; width: 100px; height: 100px; margin-bottom: 5px; 
    border-radius: 50%; flex-shrink: 0;
}

.bead-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    border-radius: 50%; background-color: #ccc;
    transition: background 0.3s ease; 
}

.bead-shadow {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    border-radius: 50%; pointer-events: none;
    box-shadow: inset -15px -15px 25px rgba(0,0,0,0.6), 
                inset 10px 10px 20px rgba(255,255,255,0.6), 
                inset 2px 2px 5px rgba(255,255,255,0.9), 
                0 15px 25px rgba(0,0,0,0.5);
}

/* ----- LAPISAN INTERAKSI & UI ----- */
#click-area {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 5; cursor: pointer;
}

#ui-layer {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%); z-index: 10; 
    text-align: center; pointer-events: none; 
    background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    padding: 30px 50px; border-radius: 30px;
    box-shadow: 0 15px 35px var(--glass-shadow); border: 1px solid var(--glass-border);
    min-width: 220px; transition: all 0.3s ease;
}

#cycle-display {
    font-size: 1.2rem; color: #e67e22; font-weight: bold;
    margin-bottom: 5px; text-transform: uppercase; letter-spacing: 1px;
}

#counter-display {
    font-size: 8rem; font-weight: 900; color: var(--text-color);
    margin: 0; line-height: 1; transition: color 0.2s ease;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.2);
}

#target-wrapper {
    display: flex; align-items: center; justify-content: center;
    gap: 15px; margin-top: 15px;
}
#target-display { font-size: 1.5rem; color: var(--target-text); font-weight: bold; }

#inline-reset-btn {
    pointer-events: auto; background-color: rgba(231, 76, 60, 0.1); color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.3); width: 38px; height: 38px; border-radius: 50%; 
    cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; 
    transition: all 0.3s ease;
}
#inline-reset-btn:hover { background-color: #e74c3c; color: white; transform: rotate(-180deg); }

/* ----- RESPONSIVE MOBILE ----- */
@media (max-width: 768px) {
    #ui-layer {
        top: 10px; left: 10px; transform: none; padding: 14px; 
        min-width: auto; border-radius: 20px; text-align: left; 
    }
    #cycle-display { font-size: 0.85rem; margin-bottom: 2px; }
    #counter-display { font-size: 3rem; margin-top: 10px;}
    #target-wrapper { justify-content: flex-start; gap: 10px; margin-top: 5px; }
    #target-display { font-size: 1rem; }
    #inline-reset-btn { width: 30px; height: 30px; font-size: 0.9rem; border-radius: 10px; }
    #bead-string { margin-top: 20vh; }
}

/* ----- PANEL PENGATURAN ----- */
#toggle-settings-btn {
    position: absolute; top: 20px; right: 20px;
    background: var(--glass-bg); color: var(--text-color); border: 1px solid var(--glass-border);
    backdrop-filter: blur(5px); font-size: 1.4rem;
    width: 50px; height: 50px; border-radius: 50%; box-shadow: 0 4px 10px var(--glass-shadow);
    cursor: pointer; z-index: 101; display: flex; align-items: center; justify-content: center;
    transition: background 0.3s;
}
#toggle-settings-btn:hover { background: var(--input-bg); }

#settings-panel {
    display: none; position: absolute; top: 80px; right: 20px;
    background: var(--glass-bg); backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
    color: var(--text-color); padding: 25px; border-radius: 20px;
    box-shadow: 0 15px 40px var(--glass-shadow); border: 1px solid var(--glass-border);
    z-index: 100; width: 280px; 
}

@media (max-width: 400px) {
    #settings-panel { width: 80%; right: 10px; }
}

.settings-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 20px; border-bottom: 1px solid var(--glass-border); padding-bottom: 10px;
}
.settings-header h3 { margin: 0; font-size: 1.2rem; }
#close-settings-btn {
    background: transparent; border: none; color: var(--text-color);
    font-size: 1.2rem; cursor: pointer; transition: color 0.2s;
}
#close-settings-btn:hover { color: #e74c3c; }

.setting-group { margin-bottom: 18px; }
.setting-group label { display: block; font-size: 0.95rem; margin-bottom: 8px; font-weight: bold; }

.setting-group input { 
    width: 100%; padding: 10px; box-sizing: border-box; border: 1px solid var(--glass-border); 
    border-radius: 8px; background: var(--input-bg); color: var(--text-color); font-size: 1rem;
    outline: none; transition: border-color 0.3s;
}
.setting-group input:focus { border-color: var(--btn-active); }

/* Tombol Toggle (Tema & Preset Target) */
.ui-buttons-group {
    display: flex; gap: 8px; margin-bottom: 10px;
}

.ui-btn {
    flex: 1; padding: 10px 5px; border: 1px solid var(--glass-border);
    border-radius: 8px; background: var(--glass-bg); color: var(--text-color);
    cursor: pointer; font-size: 0.9rem; font-weight: bold; text-align: center;
    transition: all 0.2s; box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.ui-btn:hover { background: var(--input-bg); }

.ui-btn.active {
    background: var(--btn-active); color: white; border-color: var(--btn-active);
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.4);
}

/* ----- CUSTOM SELECTOR TASBIH ----- */
#bead-preview-selector {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
    max-height: 180px; overflow-y: auto; overflow-x: hidden;
    padding: 10px; border-radius: 8px; background: rgba(0,0,0,0.03);
    border: 1px solid var(--glass-border); scrollbar-width: thin; 
}

#bead-preview-selector::-webkit-scrollbar { width: 6px; }
#bead-preview-selector::-webkit-scrollbar-track { background: var(--scroll-track); border-radius: 10px; }
#bead-preview-selector::-webkit-scrollbar-thumb { background: var(--scroll-thumb); border-radius: 10px; }

.bead-preview-wrapper {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    cursor: pointer; position: relative; padding: 8px 4px; border-radius: 10px;
    transition: background 0.2s;
}

.bead-preview-wrapper:hover { background: var(--glass-border); }

.bead-preview-wrapper.selected {
    background: rgba(52, 152, 219, 0.15); box-shadow: inset 0 0 0 2px var(--btn-active);
}

.bead-preview-item {
    position: relative; width: 45px; height: 45px; border-radius: 50%; flex-shrink: 0;
}
.bead-preview-bg, .bead-preview-shadow {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; border-radius: 50%;
}
.bead-preview-shadow {
    box-shadow: inset -5px -5px 12px rgba(0,0,0,0.6), inset 4px 4px 10px rgba(255,255,255,0.6), 
                inset 1px 1px 3px rgba(255,255,255,0.9), 0 5px 10px rgba(0,0,0,0.3);
    pointer-events: none;
}
.bead-preview-name { font-size: 0.75rem; color: var(--text-color); font-weight: bold; white-space: nowrap; }
.pro-badge {
    position: absolute; top: -5px; right: -8px; background: #f1c40f; color: #000;
    font-size: 0.5rem; font-weight: 900; padding: 2px 4px; border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3); z-index: 2;
}

.btn-style { 
    background: linear-gradient(135deg, #2980b9, #2c3e50); color: white; border: none; padding: 12px 15px; 
    border-radius: 8px; cursor: pointer; font-size: 1rem; width: 100%; font-weight: bold; 
    display: flex; align-items: center; justify-content: center; gap: 8px;
    margin-top: 5px; box-shadow: 0 4px 10px rgba(0,0,0,0.2); transition: transform 0.2s;
}
.btn-style:active { transform: scale(0.97); }