/* Base & CSS Variables */
:root {
    /* DEFAULT (Light Mode) */
    --bg-color: #f7f9fc;
    --panel-bg: rgba(255, 255, 255, 0.95);
    --text-main: #1a1a2e;
    --text-muted: #555555;
    --border-color: #d1d5db;
    --highlight: #2563eb;
    --error: #dc2626;
    --primary-btn: #e4e4e7;
    --primary-btn-hover: #d4d4d8;
    --secondary-btn: #f1f5f9;
    --input-bg: #ffffff;
    --textarea-bg: #f8fafc;
    
    --font-mono: 'Fira Code', monospace;
    --font-sans: 'Noto Sans JP', sans-serif;
    --glass-blur: blur(10px);
    --ad-height: 50px;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --panel-bg: rgba(30, 30, 30, 0.9);
    --text-main: #ffffff;
    --text-muted: #aaaaaa;
    --border-color: #444444;
    --highlight: #66b3ff;
    --error: #ff6666;
    --primary-btn: #333333;
    --primary-btn-hover: #555555;
    --secondary-btn: #222222;
    --input-bg: rgba(255, 255, 255, 0.05);
    --textarea-bg: rgba(0, 0, 0, 0.5);
}

[data-theme="hacker"] {
    --bg-color: #0d1117;
    --panel-bg: rgba(13, 17, 23, 0.85);
    --text-main: #00ff00;
    --text-muted: #008800;
    --border-color: #00ff00;
    --highlight: #39ff14;
    --error: #ff3333;
    --primary-btn: #003300;
    --primary-btn-hover: #005500;
    --secondary-btn: #001f00;
    --input-bg: rgba(0, 255, 0, 0.05);
    --textarea-bg: rgba(0, 50, 0, 0.2);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

h1, h2, h3 {
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.highlight {
    color: var(--highlight);
    text-shadow: 0 0 5px rgba(var(--highlight), 0.5); /* Hack for general glow */
}

/* Ad Spaces */
.ad-space {
    height: auto;
    background-color: #000;
    color: #888;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    letter-spacing: 1px;
    flex-shrink: 0;
    border-top: 1px dashed #333;
    border-bottom: 1px dashed #333;
    z-index: 10;
    overflow: hidden;
}
.ad-space.top { 
    border-top: none; 
    min-height: 50px;
}
@media (min-width: 768px) {
    .ad-space.top {
        min-height: 90px;
    }
}
.ad-space.bottom { 
    border-bottom: none; 
    min-height: 250px;
}

/* Main Container */
.app-container {
    flex-grow: 1;
    padding: 15px 10px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

/* Header & Controls */
.app-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}
.subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.settings-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    width: 100%;
}

.cyber-select {
    background: var(--bg-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    font-family: var(--font-sans);
    outline: none;
    cursor: pointer;
    border-radius: 6px;
    flex: 1 1 auto;
    max-width: 200px;
}
.cyber-select:focus {
    box-shadow: 0 0 5px var(--highlight);
}

/* Panels */
.panel {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}
[data-theme="hacker"] .panel, [data-theme="dark"] .panel {
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

.panel-divider {
    border: 0;
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
    opacity: 0.5;
}

/* Converter */
.converter-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 10px;
}
@media (min-width: 600px) {
    .converter-grid { grid-template-columns: repeat(4, 1fr); }
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.input-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

input[type="text"], input[type="number"] {
    background: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 1rem;
    border-radius: 6px;
    outline: none;
    transition: all 0.2s ease;
    text-align: center;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}
input[type="text"]:focus, input[type="number"]:focus, textarea:focus {
    border-color: var(--highlight);
    box-shadow: 0 0 8px var(--highlight);
}

/* Editor Section */
.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    flex-wrap: wrap;
    gap: 10px;
}
.editor-help {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.cyber-textarea {
    width: 100%;
    min-height: 120px;
    background: var(--textarea-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.4;
    resize: vertical;
    outline: none;
    transition: all 0.2s ease;
}

/* Buttons */
.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cyber-button {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 10px 16px;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    flex: 1 1 45%;
    font-size: 0.9rem;
}
@media (min-width: 600px) {
    .cyber-button { flex: 1 1 auto; }
}

.cyber-button:hover:not(:disabled) {
    background: var(--primary-btn-hover);
}
.cyber-button.primary {
    background: var(--primary-btn);
    border-color: var(--highlight);
}
.cyber-button.secondary {
    background: var(--secondary-btn);
    border-color: var(--border-color);
    padding: 6px 12px;
    flex: 0 1 auto;
}
.cyber-button.alert {
    border-color: var(--error);
    color: var(--error);
}
.cyber-button.alert {
    border-color: var(--error);
    color: var(--error);
}
.cyber-button.alert:hover:not(:disabled) {
    background: rgba(220, 38, 38, 0.1);
}
.cyber-button.small {
    padding: 4px 8px;
    font-size: 0.8rem;
    flex: 0 1 auto;
}
.alert-text {
    color: var(--error) !important;
}
.cyber-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* CPU State */
.cpu-state {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}
@media (min-width: 600px) {
    .cpu-state { flex-direction: row; }
}

.registers-wrapper {
    flex: 1;
}

.registers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(45px, 1fr));
    gap: 6px;
    background: var(--input-bg);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.register {
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: 2px solid transparent;
}
.register .reg-name {
    font-size: 0.65rem;
    color: var(--text-muted);
}
.register .reg-val {
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: 0.95rem;
}

.console-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.console {
    flex-grow: 1;
    background: var(--textarea-bg);
    color: var(--text-main);
    font-family: var(--font-mono);
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    min-height: 100px;
    max-height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
    font-size: 0.85rem;
}

/* Memory Grid */
.memory-section h3 {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}
.memory-section small {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: normal;
}

.memory-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-top: 10px;
}
@media (min-width: 380px) {
    .memory-grid { grid-template-columns: repeat(8, 1fr); }
}
@media (min-width: 600px) {
    .memory-grid { grid-template-columns: repeat(16, 1fr); }
}

.mem-cell {
    display: flex;
    flex-direction: column;
    position: relative;
}
.mem-addr {
    font-size: 0.6rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    text-align: center;
}
.mem-cell input {
    width: 100%;
    text-align: center;
    padding: 6px 2px;
    font-size: 0.85rem;
    text-transform: uppercase;
    border-radius: 4px;
}
.mem-cell.active input {
    background-color: var(--highlight);
    color: #fff;
    font-weight: bold;
    border-color: var(--highlight);
}

/* Info Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
    overflow-x: auto;
    white-space: nowrap;
}
.tab-button {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 10px 15px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 600;
    transition: color 0.2s;
}
.tab-button:hover { color: var(--text-main); }
.tab-button.active {
    color: var(--highlight);
    border-bottom: 2px solid var(--highlight);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.table-wrapper {
    overflow-x: auto;
}
.cyber-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.cyber-table th, .cyber-table td {
    padding: 10px;
    border: 1px solid var(--border-color);
    text-align: left;
}
.cyber-table th {
    background: var(--input-bg);
    color: var(--text-main);
    white-space: nowrap;
}
.cyber-table code {
    font-family: var(--font-mono);
    background: var(--textarea-bg);
    padding: 2px 5px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

/* Recording Mode */
.recording-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.recording-header .rec-title {
    font-size: 1.2rem;
    margin: 0;
}
.exit-rec-mode-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s ease;
}
.exit-rec-mode-btn:hover {
    transform: scale(1.1);
    color: var(--error);
}

body.recording-mode .recording-header {
    display: flex;
}
body.recording-mode .ad-space {
    display: none;
}
body.recording-mode .app-header,
body.recording-mode .converter-panel,
body.recording-mode .info-panel {
    display: none;
}
body.recording-mode .app-container {
    justify-content: center;
}

/* Recording Mode for File Generation */
body.recording-mode-filegen .recording-header {
    display: flex;
}
body.recording-mode-filegen .ad-space {
    display: none;
}
body.recording-mode-filegen .app-header,
body.recording-mode-filegen .converter-panel,
body.recording-mode-filegen .simulator-panel,
body.recording-mode-filegen .tabs {
    display: none;
}
body.recording-mode-filegen .app-container {
    justify-content: center;
}
body.recording-mode-filegen .info-panel {
    margin: 0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
body.recording-mode-filegen #fileGenTab {
    display: block; /* Ensure it is visible even if it wasn't the active tab */
    flex-grow: 1;
}

/* Editor Layout */
.editor-layout {
    display: flex;
    background: var(--textarea-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}
.editor-address-bar {
    width: 60px;
    padding: 12px 6px;
    background: rgba(0,0,0,0.03);
    border-right: 1px solid var(--border-color);
    text-align: right;
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.4;
    user-select: none;
}
[data-theme="hacker"] .editor-address-bar, [data-theme="dark"] .editor-address-bar {
    background: rgba(255,255,255,0.03);
}

.cyber-textarea {
    flex-grow: 1;
    border: none;
    border-radius: 0;
    margin: 0;
    background: transparent;
    width: 100%;
    min-height: 120px;
    color: var(--text-main);
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.4;
    resize: none;
    outline: none;
    overflow-x: auto;
}

/* File Generation Tab */
.file-gen-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.file-gen-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.preview-wrapper {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.preview-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}
.preview-box {
    background-color: #f0f0f0;
    background-image: 
        linear-gradient(45deg, #ccc 25%, transparent 25%), 
        linear-gradient(-45deg, #ccc 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #ccc 75%), 
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 10px;
    text-align: center;
}
.preview-placeholder {
    color: #333;
    text-shadow: 1px 1px 0px #fff;
    font-size: 0.85rem;
    font-weight: bold;
}
.preview-box img, .preview-box video {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 4px;
    /* 1x1などの極小画像でも見えるように最低サイズを指定し、ぼやけないようにする */
    min-width: 64px;
    min-height: 64px;
    image-rendering: pixelated;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.inline-error {
    color: var(--error);
    font-size: 0.85rem;
    min-height: 1.2rem;
    font-weight: 600;
    margin-top: -10px;
}

/* Suggestion Box */
.suggest-box {
    margin-top: 5px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    max-height: 150px;
    overflow-y: auto;
    font-family: var(--font-sans);
    font-size: 0.85rem;
}
.suggest-empty {
    padding: 10px;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
}
.suggest-item {
    display: flex;
    padding: 8px 10px;
    border-bottom: 1px dashed var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
    align-items: center;
}
.suggest-item:last-child {
    border-bottom: none;
}
.suggest-item:hover {
    background-color: var(--primary-btn-hover);
}
.sg-code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--highlight);
    width: 60px;
    flex-shrink: 0;
}
.sg-mnemonic {
    font-weight: 600;
    width: 100px;
    flex-shrink: 0;
}
.sg-desc {
    color: var(--text-muted);
    flex-grow: 1;
}