/* --- FONT IMPORTS --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Code+Pro:wght@400;600&display=swap');

/* --- CSS VARIABLES (VS CODE DARK+ THEME) --- */
:root {
    --bg-color: #1e1e1e;
    --bg-color-light: #252526;
    --bg-color-lighter: #333333;
    --border-color: #3c3c3c;
    --font-color: #d4d4d4;
    --font-color-dark: #8c8c8c;
    --accent-color: #007acc;
    --accent-color-hover: #0098e6;
    --tag-bg-color: #3a3d41;
    --font-family-main: 'Inter', sans-serif;
    --font-family-mono: 'Source Code Pro', monospace;
}
body[data-theme="vscode-dark"] {
    --bg-color: #1e1e1e;
    --bg-color-light: #252526;
    --bg-color-lighter: #333333;
    --border-color: #3c3c3c;
    --font-color: #d4d4d4;
    --font-color-dark: #8c8c8c;
    --accent-color: #007acc;
    --accent-color-hover: #0098e6;
    --tag-bg-color: #3a3d41;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

/* 2. New Theme: Calm Light (Dreamy White) */
body[data-theme="calm-light"] {
    --bg-color: #FFFFFF;
    --bg-color-light: #F6F8FB;      /* Frost / Surfaces */
    --bg-color-lighter: #EEF2F7;   /* Inputs */
    --border-color: #E3E9F1;       /* Divider */
    --font-color: #2E3A44;         /* Primary Text */
    --font-color-dark: #60707D;    /* Secondary Text */
    --accent-color: #7BC7FF;        /* Opal */
    --accent-color-hover: #5faae0;
    --tag-bg-color: #EEF2F7;
    --shadow-color: rgba(25, 36, 46, 0.06);
}

/* 3. New Theme: Coder Midnight (Art-Deco) */
body[data-theme="coder-midnight"] {
    --bg-color: #0C0F14;           /* Ink */
    --bg-color-light: #15181D;      /* Jet */
    --bg-color-lighter: #2A2E35;   /* Graphite for surfaces */
    --border-color: #2A2E35;       /* Graphite */
    --font-color: #FFF9EF;         /* Ivory */
    --font-color-dark: #F3E7C9;    /* Champagne */
    --accent-color: #0E5D45;        /* Emerald */
    --accent-color-hover: #1B7A60;
    --tag-bg-color: #2A2E35;
    --shadow-color: rgba(0, 0, 0, 0.45);
}

/* --- BASE & RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

#app-container {
    width: 100%;
    max-width: 1000px; /* Mobile-first design */
    height: 850px;
    max-height: 96vh;
    background: none;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    border: none;
}

/* --- PAGE MANAGEMENT & TRANSITIONS --- */
.page {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 2rem;
    display: none; /* Hidden by default */
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    opacity: 0;
    animation: fadeOut 0.3s forwards;
}

.page.active {
    display: flex;
    opacity: 1;
    animation: fadeIn 0.4s forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.content-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* --- GENERAL COMPONENTS --- */
h1, h2, h3, h4 {
    font-weight: 600;
}

.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    width: 100%;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}
.btn-primary:hover {
    background-color: var(--accent-color-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 122, 204, 0.3);
}

.btn-secondary {
    background-color: var(--bg-color-light);
    color: var(--font-color);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--bg-color-lighter);
    border-color: var(--accent-color);
}

.text-input, .mood-select {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--bg-color-light);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--font-color);
    font-size: 1rem;
}
.text-input:focus, .mood-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 122, 204, 0.5);
}

/* --- SPECIFIC PAGE STYLES --- */

/* S0: Splash */
#page-splash .logo {
    color: var(--accent-color);
    animation: pulse 2s infinite ease-in-out;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}
#page-splash h1 {
    font-family: var(--font-family-mono);
    margin-top: 1rem;
}

/* S0.1: Mood Check-In */
.mood-selector {
    display: flex;
    justify-content: space-around;
    width: 100%;
}
.mood-option {
    font-size: 2.5rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
    border-radius: 8px;
}
.mood-option:hover {
    transform: scale(1.2);
}
.mood-option:focus{
    border: 2px solid #cccccc;
    background-color: #444444;
}
/* S1: Hub */
.hub-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}
.current-mood-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}
.current-mood-display .mood-select {
    width: auto;
    padding: 0.3rem 0.5rem;
    font-size: 0.9rem;
}
.hub-section {
    width: 100%;
    text-align: left;
}
.hub-section h3 {
    margin-bottom: 1rem;
    color: var(--font-color-dark);
}
.quick-start-grid, .hub-nav-grid {
    display: grid;
    gap: 0.75rem;
}
.hub-nav-grid {
    grid-template-columns: 1fr 1fr;
}
.recent-session-card {
    background-color: var(--bg-color-light);
    padding: 1rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
}
.recent-session-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}
.recent-session-card h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}
.recent-session-card p {
    font-size: 0.8rem;
    color: var(--font-color-dark);
}

/* S2: Album Recommendations */
.page-header {
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 1rem;
}
.page-header h2 {
    flex-grow: 1;
    text-align: center;
}
.btn-back {
    background: none;
    border: none;
    color: var(--font-color-dark);
    font-size: 1rem;
    cursor: pointer;
    position: absolute;
    top: 20px;
    left: 20px;
    max-width: 80px;
}
.album-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    overflow-y: auto;
    flex-grow: 1;
}
.album-card {
    background-color: var(--bg-color-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    padding: 1rem;
    text-align: left;
    transition: transform 0.2s;
}
.album-card:hover {
    transform: scale(1.005);
}
.album-art-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--bg-color-lighter);
    border-radius: 5px;
    flex-shrink: 0;
}
.album-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.album-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.tag {
    background-color: var(--tag-bg-color);
    color: var(--font-color);
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
}
.album-info p {
    font-size: 0.9rem;
    color: var(--font-color-dark);
}
.album-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}
.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    width: auto;
}

/* S3: Session Creator */
.session-creator-content {
    width: 100%;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.workflow-picker {
    display: flex;
    background-color: var(--bg-color-light);
    border-radius: 5px;
    padding: 4px;
}
.workflow-option {
    flex: 1;
    padding: 0.5rem;
    background: none;
    border: none;
    color: var(--font-color-dark);
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
}
.workflow-option.active {
    background-color: var(--bg-color-lighter);
    color: var(--font-color);
}
.toggle-group {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-color-light);
    padding: 0.8rem;
    border-radius: 5px;
}
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}
.switch input { display: none; }
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--bg-color-lighter);
    transition: .4s;
    border-radius: 28px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    /*background-color: white;*/
    transition: .4s;
    border-radius: 50%;
}
input:checked + .slider { background-color: var(--accent-color); }
input:checked + .slider:before { transform: translateX(22px); }

/* S4: Player */
.player-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}
.player-art-placeholder {
    width: 200px;
    height: 200px;
    background-color: var(--bg-color-light);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
.track-info { text-align: center; }
.track-info p { color: var(--font-color-dark); }
.timer-display {
    font-family: var(--font-family-mono);
    font-size: 2rem;
}
.progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--bg-color-light);
    border-radius: 3px;
}
.progress-bar-inner {
    width: 40%; /* Example progress */
    height: 100%;
    background-color: var(--accent-color);
    border-radius: 3px;
}
.player-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.player-btn {
    background: none;
    border: none;
    color: var(--font-color);
    font-size: 1.5rem;
    cursor: pointer;
}
.main-btn {
    font-size: 3rem;
    color: var(--accent-color);
}
.secondary-btn {
    font-size: 1.2rem;
    color: var(--font-color-dark);
}
.feedback-controls {
    display: flex;
    gap: 2rem;
}
.feedback-btn { font-size: 1.5rem; }
.end-session-btn {
    position: absolute;
    bottom: 2rem;
    width: auto;
    padding: 0.5rem 1rem;
}

/* S5: Song Generator */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}
.tab-btn {
    flex: 1;
    padding: 0.8rem;
    background: none;
    border: none;
    color: var(--font-color-dark);
    cursor: pointer;
    border-bottom: 2px solid transparent;
}
.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}
.tab-content {
    display: none;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    text-align: left;
    padding-top: 1rem;
}
.tab-content.active { display: flex; }
textarea.large { min-height: 100px; }
.generator-options { display: flex; gap: 1rem; }
.layer-card {
    background-color: var(--bg-color-light);
    padding: 1rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}
.layer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.btn-remove-layer { background: none; border: none; color: var(--font-color-dark); font-size: 1.5rem; cursor: pointer; }
.layer-body { display: flex; flex-direction: column; gap: 0.5rem; }
.slider-input { width: 100%; background: none;}
.slider-input::-moz-range-track{
    background-color:var(--accent-color);
    height: 6px;
    border-radius: 3px;
}
.slider-input::-webkit-slider-runnable-track{
    background-color:var(--accent-color);
    height: 6px;
    border-radius: 3px;
}
.generator-actions { display: flex; gap: 0.5rem; margin-top: auto; }

/* S6: Co-op */
.coop-actions { display: flex; flex-direction: column; gap: 1rem; width: 100%; }
.join-session { display: flex; gap: 1rem; }
.join-session .text-input { flex-grow: 1; }

/* S7: Settings */
.settings-section {
    width: 100%;
    text-align: left;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}
.settings-section:last-child { border-bottom: none; }
.settings-section h3 { margin-bottom: 1rem; }
.session-log-list { display: flex; flex-direction: column; gap: 0.5rem; }
.log-entry {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    padding: 0.5rem;
    background-color: var(--bg-color-light);
    border-radius: 3px;
}
.log-album { flex-grow: 1; margin: 0 1rem; }
.log-duration { color: var(--font-color-dark); }
.theme-selector { display: flex; gap: 0.5rem; }
.theme-option {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    text-align: center;
    cursor: pointer;
}
.theme-option.active {
    border-color: var(--accent-color);
    background-color: rgba(0, 122, 204, 0.2);
}
.info-link {
    display: block;
    color: var(--accent-color);
    text-decoration: none;
    margin-top: 0.5rem;
}

.music-card {
    background-color: var(--bg-color-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    padding: 1rem;
    text-align: left;
    transition: transform 0.2s;
}
.music-card:hover {
    transform: scale(1.01);
}
.music-art-placeholder {
    width: 25px;
    height: 25px;
    background-color: var(--accent-color);
    border-radius: 50%;
    flex-shrink: 0;
    color: #f0f0f0;
    padding-left: 7.5px;
    padding-top: 3px;
}
.music-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.music-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.music-info{
    font-size: 0.9rem;
    color: var(--font-color-dark);
}
.music-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}
.music-title {
    color: #f0f0f0;
}
.log-container {
    overflow-y: auto;
    max-height: 200px;
    background-color: transparent;
    margin: 0;
    padding: 0;
}
.generated-audio {
    background-color: rgb(130,130,130);
    width: 100%;
    margin-top: 15px;
    margin-bottom: 10px;
    border-radius: 20px;
    height: 40px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.spinner {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: none;
    border: 4px solid var(--font-color);
    border-top: 4px solid transparent;
    display: block;
    animation: spin 1.2s linear infinite;
}

.preview-area {
    justify-content: center;
    display: flexbox;
}

/* --- NEW: Custom Generator Detailed Styles --- */

.custom-generator-controls {
    display: flex;
    flex-direction: column;
    gap: 1.25rem; /* Increased gap for better spacing */
    padding-top: 1rem;
}

.accordion {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    margin-bottom: 1rem;
    background-color: var(--bg-color-light);
}

.accordion summary {
    padding: 0.8rem;
    cursor: pointer;
    font-weight: 500;
    list-style: none; /* Remove default arrow */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion summary::-webkit-details-marker {
    display: none; /* Hide arrow for Chrome/Safari */
}

.accordion summary::after {
    content: '▶';
    font-size: 0.8em;
    transition: transform 0.2s;
}

.accordion[open] > summary::after {
    transform: rotate(90deg);
}

.accordion[open] > .custom-generator-controls {
    padding: 0 1rem 1rem 1rem; /* Padding only when open */
}

.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.ir{
    accent-color: var(--accent-color);
}

.slider-value {
    font-family: var(--font-family-mono);
    background-color: var(--bg-color-lighter);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
    min-width: 40px;
    display: inline-block;
    text-align: center;
}

.preset-loader {
    display: flex;
    gap: 0.5rem;
}

/* Tooltip Styles */
.tooltip-container {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted var(--font-color-dark);
}

.tooltip-container::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%; /* Position above the label */
    left: 50%;
    transform: translateX(-50%);
    background-color: #000;
    color: #fff;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 10;
    pointer-events: none;
}

.tooltip-container:hover::after {
    opacity: 1;
    visibility: visible;
}

.preview-area {
    margin-top: 1.5rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.page {
    overflow-y: auto; 
}

@media (min-width: 768px) {
    body {
        
        padding: 2rem;
    }

    #app-container {
        
        max-width: 800px; 

        
        height: 800px;
        max-height: 90vh;

        
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    }

    
    .hub-nav-grid, .album-grid {
        
        grid-template-columns: 1fr 1fr;
    }
}

/* Hide custom inputs by default */
.custom-inputs-container {
    flex-direction: column;
    gap: 1rem;
    animation: fadeIn 0.3s; /* Use existing fadeIn animation */
}

/* Style for the phase display (Focus/Break) */
.phase-display {
    font-family: var(--font-family-mono);
    font-size: 0.9rem;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    background-color: var(--bg-color-light);
    color: var(--font-color-dark);
    transition: all 0.3s ease;
}

/* Style for the "Advance to Break" button */
.advance-btn {
    width: auto;
    padding: 0.5rem 1rem;
    margin-top: 0.5rem;
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Make the timer display look clickable */
.timer-display {
    cursor: pointer;
    transition: opacity 0.2s;
}

.timer-display:hover {
    opacity: 0.8;
}

/* --- Visual States for Break Time --- */

/* A class to add to the player wrapper during a break */
.player-wrapper.break-active .phase-display {
    background-color: #55C2A3; /* Using a success/calm color */
    color: #FFFFFF;
}

.player-wrapper.break-active .timer-display {
    color: #55C2A3;
}

.player-wrapper.break-active #advance-to-break-btn {
    display: none; /* Hide the button during a break */
}

.inline-btn{
    display: inline-block;
    width: auto;
    height: auto;
    background-color: var(--accent-color);
    font-size: 11px;
    height: 20px;
    border-radius: 10px;
    padding-left: 5px;
    padding-right: 5px;
    border: none;
    color: var(--font-color);
}

.inline-btn:hover{
    display: inline-block;
    width: auto;
    height: auto;
    background-color: var(--accent-color-hover);
    font-size: 11px;
    height: 20px;
    border-radius: 10px;
    padding-left: 5px;
    padding-right: 5px;
    border: none;
    color: var(--font-color);
}