:root {
    --bg-color: #0d0d0d;
    --text-color: #f0f0f0;
    --glass-bg: rgba(20, 20, 20, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Dynamic Aura Color (updated via JS) */
    --aura-color: #000;
    
    --accent-error: #ff3366;
    --accent-success: #00ffcc;
    --accent-gold: #ffd700;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden; 
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Layering logic for Screens */
.screen-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    transition: opacity 0.5s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

#home_screen {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 60px;
    padding-right: 250px; /* Leave space for preview panel */
}

.screen-layer.hidden {
    opacity: 0;
    pointer-events: none;
    z-index: -1;
}

.hidden:not(.screen-layer):not(.loading-overlay) {
    display: none !important;
}

/* Base Canvas for rendering */
.aura-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1; 
    object-fit: cover;
    transform: scaleX(-1); 
}

.ambient-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vh;
    border-radius: 50%;
    background: radial-gradient(circle, var(--aura-color) 0%, transparent 70%);
    filter: blur(100px);
    opacity: 0.15;
    z-index: 0;
    transition: background 2s ease-in-out, opacity 1s;
}

/* Glass UI Elements */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    z-index: 10;
}

/* Home Screen specifics */
.home-header {
    position: relative;
    max-width: 450px;
    z-index: 10;
}

.main-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 5px;
    text-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.subtitle {
    color: var(--accent-gold);
    letter-spacing: 3px;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.rules-box {
    padding: 20px;
}

.rules-box p {
    font-size: 0.9rem;
    margin-bottom: 15px;
    color: #ddd;
}

.rules-list {
    font-size: 0.85rem;
    color: #aaa;
    margin-left: 20px;
    line-height: 1.6;
}

.rules-list li {
    margin-bottom: 5px;
}

.home-form {
    position: relative;
    padding: 30px;
    width: 350px;
    z-index: 10;
}

.home-form h2 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 5px;
}

.form-group input, .form-group select {
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    color: #fff;
    padding: 10px 15px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}

.form-group input:focus, .form-group select:focus {
    border-color: rgba(255,255,255,0.6);
}

/* Left Panel (Meditation Mode) */
.left-panel {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    min-width: 180px;
    max-width: 220px;
    z-index: 20;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.left-panel.collapsed {
    transform: translate(-150%, -50%);
    opacity: 0;
    pointer-events: none;
}

.panel-toggle {
    position: absolute;
    left: 20px;
    top: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 25;
    backdrop-filter: blur(8px);
}

.sidebar-title {
    font-size: 0.9rem;
    letter-spacing: 2px;
    color: var(--text-color);
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 5px;
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    gap: 15px;
    margin-bottom: 5px;
}

.label {
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 1px;
    color: #aaa;
    margin-bottom: 2px;
}

.value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.main-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

body.is-meditating .setup-only {
    display: none;
}

body.is-meditating .preview-panel:not(.force-show) {
    opacity: 0;
    pointer-events: none;
}


/* Buttons */
button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
    transition: all 0.2s;
    font-weight: 600;
    letter-spacing: 1px;
}

.glass-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    width: 100%;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-primary {
    background: var(--text-color);
    color: var(--bg-color);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    box-shadow: 0 0 20px rgba(255,255,255,0.2);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255,255,255,0.4);
}

.btn-danger {
    background: rgba(255, 51, 102, 0.2);
    color: var(--accent-error);
    border-color: rgba(255, 51, 102, 0.4);
    font-size: 0.8rem;
}

.btn-danger:hover {
    background: rgba(255, 51, 102, 0.4);
}

.btn-toggle {
    background: rgba(255,255,255,0.05);
    font-size: 0.8rem;
    color: #ccc;
    border-color: rgba(255,255,255,0.1);
}

.btn-toggle:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

/* Top Center HUD UI */
.top-center-hud {
    position: absolute;
    top: 3%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 50;
    pointer-events: none; 
}

.status-pulse {
    font-size: 1rem;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 5px;
    animation: pulseText 2s infinite;
}

@keyframes pulseText {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.aura-preview {
    width: 200px;
    height: 400px;
    background: transparent;
    border-radius: 100px;
    box-shadow: inset 0 0 50px rgba(0,0,0,0.8);
    position: relative;
    overflow: hidden;
    animation: auraEvolve 15s infinite linear;
}

.aura-preview.demo-active {
    animation: auraEvolve 60s linear forwards !important;
}

@keyframes auraEvolve {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.timer-display {
    font-size: 3rem;
    font-weight: 800;
    color: var(--aura-color); 
    text-shadow: 0 0 20px var(--aura-color);
    margin-bottom: 10px;
    font-variant-numeric: tabular-nums;
    transition: color 1s, text-shadow 1s;
}

/* Strike Indicators Bottom Right */
.strike-container-vertical {
    position: absolute;
    right: 40px;
    bottom: 40px;
    display: flex;
    flex-direction: row;
    gap: 15px;
    z-index: 6;
}

.strike {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.4);
    background: transparent;
    transition: all 0.3s;
}

.strike.active {
    background: var(--accent-error) !important;
    border-color: var(--accent-error) !important;
    box-shadow: 0 0 20px var(--accent-error) !important;
    opacity: 1 !important;
}

/* Loading overlay */
.loading-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    transition: opacity 0.5s;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--text-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Aura Preview Right Panel */
.preview-panel {
    position: absolute;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    width: 250px;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: opacity 0.3s;
    z-index: 20;
}

.preview-title {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 5px;
    color: #fff;
}

.preview-sub {
    font-size: 0.8rem;
    color: #aaa;
    margin-bottom: 40px;
}

.sil-container {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
}

.meditator-svg {
    position: relative;
    width: 100px;
    height: 150px;
    z-index: 2;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
}

.glow-orb {
    position: absolute;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    /* Removed 'alternate' so it loops continuously backwards to start over */
    animation: auraTimelapse 20s infinite;
}

.preview-label-box {
    margin-top: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.preview-label-box::before {
    content: "Level 1: 30s";
    animation: textTimelapse 20s infinite;
}

@keyframes auraTimelapse {
    0%   { background-color: #000000; box-shadow: 0 0 20px 10px #000000; }
    9%   { background-color: #5d4037; box-shadow: 0 0 30px 15px #5d4037; }
    18%  { background-color: #f44336; box-shadow: 0 0 40px 20px #f44336; }
    27%  { background-color: #ff9800; box-shadow: 0 0 50px 25px #ff9800; }
    36%  { background-color: #ffeb3b; box-shadow: 0 0 60px 30px #ffeb3b; }
    45%  { background-color: #4caf50; box-shadow: 0 0 70px 35px #4caf50; }
    54%  { background-color: #03a9f4; box-shadow: 0 0 80px 40px #03a9f4; }
    63%  { background-color: #3f51b5; box-shadow: 0 0 90px 45px #3f51b5; }
    72%  { background-color: #9c27b0; box-shadow: 0 0 100px 50px #9c27b0; }
    81%  { background-color: #ffffff; box-shadow: 0 0 120px 60px #ffffff; }
    95%  { background-color: #ffd700; box-shadow: 0 0 140px 70px #ffd700; }
    100% { background-color: #c0c0c0; box-shadow: 0 0 160px 80px #c0c0c0; }
}

@keyframes textTimelapse {
    0%   { content: "Level 1: 30s"; color: #ffffff; }
    9%   { content: "Level 3: 90s"; color: #8d7067; }
    18%  { content: "Level 10: 5m"; color: #f44336; }
    27%  { content: "Level 20: 10m"; color: #ff9800; }
    36%  { content: "Level 40: 20m"; color: #ffeb3b; }
    45%  { content: "Level 60: 30m"; color: #4caf50; }
    54%  { content: "Level 100: 50m"; color: #03a9f4; }
    63%  { content: "Level 130: 65m"; color: #7f91f5; }
    72%  { content: "Level 160: 80m"; color: #dc67f0; }
    81%  { content: "Level 190: 95m"; color: #ffffff; }
    95%  { content: "Level 216: 108m"; color: #ffd700; }
    100% { content: "Beyond: Buddha"; color: #c0c0c0; }
}