/* ==========================================================================
   GRIM DARK RPG ENGINE - DESIGN SYSTEM & STYLESHEET (v0.37)
   ==========================================================================
   DEVELOPER NOTES - GRAPHICS & VISUAL ARCHITECTURE:
   --------------------------------------------------------------------------
   1. DESIGN TOKEN SYSTEM: All visual properties (colors, typography, spacing,
      borders, transitions, and z-index layers) are centralized in the :root
      selector below.
   2. FUTURE-PROOFING: To re-skin the UI, add custom theme classes to <body>
      and override these tokens without touching layout selectors.
   3. ACCESSIBILITY & EXTENSIBILITY: Resource bar colors use status-specific
      tokens to allow colorblind-friendly theme swaps in future updates.
   ========================================================================== */

/* ==================== SECTION 1: DESIGN SYSTEM TOKENS ==================== */
:root {
    /* --- COLOR PALETTE: Grim Dark Base & Panels --- */
    --bg-page: #0c0c0c;
    --bg-panel: #111111;
    --bg-surface: #141414;
    --bg-surface-alt: #1a1a1a;
    --bg-input: #0c0c0c;

    /* --- COLOR PALETTE: Accents & Borders --- */
    --border-crimson: #8a2525;
    --border-crimson-bright: #a33333;
    --border-subtle: #333333;
    --color-accent-crimson: #8a2525;
    --color-accent-hover: #a33333;

    /* --- COLOR PALETTE: Typography --- */
    --text-primary: #b0a8a0;
    --text-muted: #776666;
    --text-bright: #ffffff;
    --text-crimson: #ff4444;
    --text-gold: #ffc107;
    --text-blue: #4169E1;

    /* --- RESOURCE STATUS METER COLORS --- */
    --status-vitality: #4caf50;
    --status-celerity: #ffc107;
    --status-resolve: #2196f3;
    --status-dread: #9c27b0;
    --status-warning: #ff9800;
    --status-danger: #f44336;

    /* --- VALIDATION BADGE PALETTE --- */
    --badge-valid-bg: #103a10;
    --badge-valid-text: #99ff99;
    --badge-valid-border: #44ff44;
    --badge-invalid-bg: #4a1010;
    --badge-invalid-text: #ff9999;
    --badge-invalid-border: #ff4444;

    /* --- TYPOGRAPHY --- */
    --font-family-body: Georgia, serif;
    --font-family-header: 'Creepster', Georgia, serif;
    --font-size-sm: 0.8em;
    --font-size-base: 0.95em;
    --font-size-lg: 1.1em;

    /* --- LAYOUT DIMENSIONS & SHADOWS --- */
    --sidebar-single-width: 340px;
    --sidebar-dual-width: 680px;
    --shadow-sidebar: -4px 0 10px rgba(0, 0, 0, 0.7);
    --shadow-glow-crimson: -2px 0 8px rgba(255, 68, 68, 0.5);

    /* --- ANIMATIONS & TRANSITIONS --- */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ==================== SECTION 2: CORE LAYOUT & GLOBAL RULES ==================== */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font-family-body);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

#main {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

#left {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-right: 2px solid var(--border-crimson);
    min-width: 0;
    transition: flex var(--transition-normal), opacity var(--transition-normal);
}

/* SETUP MODE: Hide narrative left panel to devote 100vw to 3-Pane Creation */
#main.setup-mode #left {
    display: none;
}

/* ==================== SECTION 3: TOP RESOURCE STATUS BAR ==================== */
#top-bar {
    background: var(--bg-panel);
    border-bottom: 2px solid var(--border-crimson);
    padding: 8px 12px;
    display: flex;
    gap: 15px;
    font-size: var(--font-size-base);
    flex-wrap: wrap;
    align-items: center;
}

.top-resource {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.bar {
    height: 12px;
    width: 80px;
    background: #222;
    border: 1px solid var(--border-crimson);
    position: relative;
}

.bar-fill {
    height: 100%;
    transition: width var(--transition-normal), background-color var(--transition-normal);
}

/* ==================== SECTION 4: NARRATIVE LOG & ACTION BUTTONS ==================== */
#log {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    background: var(--bg-surface-alt);
    font-size: var(--font-size-lg);
    line-height: 1.5;
    white-space: pre-wrap;
}

#choice-area {
    padding: 8px 10px;
    background: var(--bg-surface);
    border-top: 2px solid var(--border-crimson);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

#choice-area button {
    flex: 1;
    min-width: 140px;
    margin: 0;
    padding: 10px 12px;
    background: var(--color-accent-crimson);
    color: var(--text-bright);
    border: 1px solid var(--border-crimson-bright);
    cursor: pointer;
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    text-align: center;
    transition: background var(--transition-fast), opacity var(--transition-fast);
}

#choice-area button:hover:not(:disabled) {
    background: var(--color-accent-hover);
}

#choice-area button:disabled {
    background: #2a2222;
    color: var(--text-muted);
    border-color: #443333;
    cursor: not-allowed;
    opacity: 0.6;
}

.choice-badge {
    background: #3a1010;
    color: var(--badge-invalid-text);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: var(--font-size-sm);
    margin-right: 6px;
    border: 1px solid var(--border-crimson);
}

#input-area {
    padding: 10px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-subtle);
}

input, select {
    width: 100%;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-crimson);
    padding: 8px;
    font-family: var(--font-family-body);
}

/* ==================== SECTION 5: RIGHT SIDEBAR & DUAL-PANE MODE ==================== */
#right {
    width: var(--sidebar-single-width);
    background: var(--bg-panel);
    transition: width var(--transition-normal);
    border-left: 2px solid var(--border-crimson);
    position: relative;
    box-shadow: var(--shadow-sidebar);
    z-index: 10;
}

#main.setup-mode #right {
    width: 100%;
    border-left: none;
}

#right.dual-pane {
    width: var(--sidebar-dual-width);
}

#right-content {
    height: 100%;
    overflow-y: auto;
    padding: 15px;
}

/* SIDEBAR BOOK TOGGLE BUTTONS */
.sidebar-tabs {
    position: absolute;
    left: 0;
    top: 20px;
    transform: translateX(-100%);
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 100;
}

.book-toggle-btn {
    background: var(--bg-surface-alt);
    color: var(--text-primary);
    border: 1px solid var(--border-crimson);
    border-right: none;
    padding: 8px 10px;
    cursor: pointer;
    border-radius: 6px 0 0 6px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-toggle-btn:hover, .book-toggle-btn.active {
    background: var(--color-accent-crimson);
    color: var(--text-bright);
    box-shadow: var(--shadow-glow-crimson);
}

/* ==================== SECTION 6: 3-PANE CREATION LAYOUT ==================== */
.creation-3pane {
    display: grid;
    grid-template-columns: 280px 1fr 340px;
    gap: 15px;
    height: 100%;
    overflow: hidden;
}

.pane {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 12px;
    border-radius: 4px;
    overflow-y: auto;
}

.pane h3 {
    margin-top: 0;
    color: var(--text-crimson);
    border-bottom: 1px solid var(--border-crimson);
    padding-bottom: 6px;
    font-size: var(--font-size-lg);
}

/* ==================== SECTION 7: VALIDATION BADGES ==================== */
.val-badge {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: var(--font-size-sm);
    font-weight: bold;
    margin-top: 4px;
    display: inline-block;
}

.val-badge.invalid {
    background: var(--badge-invalid-bg);
    color: var(--badge-invalid-text);
    border: 1px solid var(--badge-invalid-border);
}

.val-badge.valid {
    background: var(--badge-valid-bg);
    color: var(--badge-valid-text);
    border: 1px solid var(--badge-valid-border);
}

/* ==================== SECTION 8: IN-GAME TAB NAVIGATION ==================== */
.tab-bar {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border-crimson);
    padding-bottom: 8px;
    margin-bottom: 12px;
}

.tab-btn {
    flex: 1;
    background: var(--bg-surface-alt);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    padding: 6px 4px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    text-align: center;
    border-radius: 4px 4px 0 0;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: #666;
}

.tab-btn.active {
    background: var(--color-accent-crimson);
    color: var(--text-bright);
    border-color: var(--border-crimson-bright);
}

.dual-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* ==================== SECTION 9: ASPECT TAGS & CARDS ==================== */
.aspect-tag {
    display: inline-block;
    background: #1c2a38;
    color: #80c0ff;
    padding: 3px 6px;
    border: 1px solid #285078;
    border-radius: 3px;
    font-size: var(--font-size-sm);
    margin: 2px;
    cursor: pointer;
}

.aspect-tag.selected {
    background: var(--color-accent-crimson);
    color: var(--text-bright);
    border-color: var(--text-crimson);
}

.location-card {
    background: #181818;
    border: 1px solid var(--border-crimson);
    padding: 10px;
    margin-bottom: 12px;
    border-radius: 4px;
}

.location-card h4 {
    margin: 0 0 6px 0;
    color: var(--text-crimson);
}

.stat, .resource-text {
    margin: 6px 0;
    padding: 4px 0;
}

.log-action {
    font-style: italic;
    color: #c8c0b8;
}

.log-item {
    font-weight: bold;
    color: var(--text-blue);
}

button.dev {
    background: #3a2a1a;
}

.critical {
    color: var(--text-crimson);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    50% { opacity: 0.6; }
}

.point-buy {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 5px 0;
}

/* ==================== SECTION 10: TOOLTIPS ==================== */
.tooltip {
    position: relative;
    cursor: help;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background: var(--bg-surface-alt);
    color: var(--text-primary);
    border: 1px solid var(--border-crimson);
    padding: 8px;
    position: absolute;
    z-index: 2;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    font-size: var(--font-size-base);
    pointer-events: none;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}