:root {
    /* Core Palette - Premium Dota 2 Theme */
    --primary-red: #ff3c2f;
    /* More vibrant red */
    --primary-red-dim: #c9302c;
    --primary-red-glow: rgba(255, 60, 47, 0.4);

    --bg-dark: #0b0b12;
    --bg-panel: rgba(22, 27, 46, 0.7);
    --bg-panel-border: rgba(255, 255, 255, 0.1);

    --text-main: #ffffff;
    --text-muted: #a0a0b0;

    --accent-purple: #bd8eff;
    --accent-gold: #ffd700;
    --accent-blue: #4dabf7;

    --glass-blur: 16px;
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);

    --font-family: 'Outfit', sans-serif;

    --btn-radius: 8px;
    --panel-radius: 12px;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    background-image:
        radial-gradient(circle at 15% 50%, rgba(76, 29, 149, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(201, 48, 44, 0.15) 0%, transparent 50%);
    color: var(--text-main);
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* --- Header & Controls --- */

.header {
    background: rgba(11, 11, 18, 0.98);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: var(--glass-border);
    padding: 0 12px;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    height: 50px;
    width: 100%;
    overflow: hidden;
}

.header h1 {
    color: var(--text-main);
    font-size: 1.2rem;
    /* Smaller title */
    font-weight: 700;
    margin-bottom: 0;
    /* Remove bottom margin */
    text-transform: uppercase;
    letter-spacing: 1px;
    background: linear-gradient(90deg, #fff, #bbb);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    white-space: nowrap;
    /* Prevent wrapping */
}

.controls {
    display: flex;
    flex-direction: row;
    gap: 8px;
    flex: 1;
    overflow-x: auto;
    align-items: center;
    height: 100%;
    scrollbar-width: none;
    /* Hide scrollbar for clean look */
}

.controls::-webkit-scrollbar {
    display: none;
}

.control-row {
    display: flex;
    flex-wrap: nowrap;
    /* Prevent wrapping */
    align-items: center;
    gap: 12px;
}

.input-section {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.02);
    padding: 2px 6px;
    border-radius: var(--btn-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- Components --- */

/* Buttons */
button,
.compact-btn {
    font-family: var(--font-family);
    padding: 8px 16px;
    border: none;
    border-radius: var(--btn-radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

button:hover,
.compact-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

button:active {
    transform: translateY(0);
}

/* Specialized Buttons */
#addRelationship,
#addItem,
#addText,
#addLine,
#savePatch,
#saveMeta,
#zoomIn,
#zoomOut {
    background: linear-gradient(135deg, var(--primary-red-dim) 0%, #a0201d 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(201, 48, 44, 0.3);
}

#addRelationship:hover,
#addItem:hover {
    background: linear-gradient(135deg, var(--primary-red) 0%, #c9302c 100%);
    box-shadow: 0 6px 20px rgba(255, 60, 47, 0.4);
}

.delete-btn {
    background: rgba(220, 53, 69, 0.2) !important;
    color: #ff6b6b !important;
    border-color: rgba(220, 53, 69, 0.3) !important;
}

.delete-btn:hover {
    background: rgba(220, 53, 69, 0.4) !important;
}

.analyze-btn {
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%) !important;
    color: #000 !important;
    text-shadow: none;
}

.meta-toggle-btn {
    background: linear-gradient(135deg, #9370db 0%, #7b5ab6 100%);
    color: white;
}

/* Inputs & Selects */
input,
select,
.compact-dropdown,
.compact-input,
.hero-dropdown {
    font-family: var(--font-family);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 6px;
    outline: none;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

input:focus,
select:focus {
    border-color: var(--primary-red);
    background: rgba(0, 0, 0, 0.6);
}

select option {
    background: #1a1a2e;
    color: white;
    padding: 10px;
}

/* --- Layout Utils --- */
.patch-controls,
.meta-controls,
.meta-view-controls,
.meta-save-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.counters-text {
    color: var(--text-muted);
    font-size: 1.2rem;
    padding: 0 4px;
}

/* --- Main Content & Canvas --- */

/* Maximizing Canvas Area */
.main-content {
    flex: 1;
    position: relative;
    padding: 0;
    overflow: hidden;
    min-height: 0;
    width: 100%;
}

.canvas-container {
    width: 100%;
    height: 100%;
    position: relative;
    background: radial-gradient(circle at center, #1b1b24 0%, #0b0b12 100%);
    border-radius: 0;
    /* Removing border radius for full screen feel */
    border: none;
}

#metaGraph {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
    touch-action: none;
}

#metaGraph:active {
    cursor: grabbing;
}

/* Canvas UI Overlay */
.canvas-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.zoom-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: rgba(0, 0, 0, 0.6);
    padding: 8px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.zoom-controls button {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    padding: 0;
    display: grid;
    place-items: center;
    font-size: 1.2rem;
    line-height: 1;
}

.canvas-info {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.05);
    letter-spacing: 0.5px;
}

/* --- Meta Panel Popup --- */
.meta-panel {
    background: rgba(20, 20, 30, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(147, 112, 219, 0.3);
    border-radius: var(--panel-radius);
    padding: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);

    /* Animation */
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInSlide 0.2s forwards;
}

@keyframes fadeInSlide {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.meta-checkboxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 8px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

.meta-checkbox-item {
    font-size: 0.85rem;
}

.meta-checkbox-item label {
    color: var(--text-muted);
    transition: color 0.2s;
}

.meta-checkbox-item label:hover {
    color: var(--text-main);
}

/* --- Analysis Modal --- */
.modal {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #13131f;
    /* Solid dark background fallback */
    background: linear-gradient(145deg, #1a1a24 0%, #13131f 100%);
    border: 1px solid rgba(255, 60, 47, 0.3);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    max-width: 1000px;
}

.modal-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px 30px;
}

.modal-header h2 {
    color: var(--text-main);
    font-weight: 600;
    letter-spacing: 0.5px;
    font-size: 1.5rem;
}

.close-btn {
    opacity: 0.7;
    transition: opacity 0.2s;
}

.close-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1) !important;
}

.modal-body {
    padding: 30px;
}

.analysis-section {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    border-left: 3px solid var(--primary-red);
}

.analysis-section h3 {
    color: var(--primary-red);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.hero-analysis-item {
    border-bottom-color: rgba(255, 255, 255, 0.05);
    padding: 12px 0;
}

.meta-view-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.meta-view-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.meta-view-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(77, 171, 247, 0.4);
}