/* --- Global Styles --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
    /* --- PALETTE: Future-Fluid (Deep Navy + Electric Orange) --- */
    --bg-deep: #0B0E14;
    --bg-elevated: #151921;
    --bg-card: rgba(15, 23, 42, 0.6);

    --accent: #FF5500;
    --accent-dim: rgba(255, 85, 0, 0.1);
    --accent-glow: rgba(255, 85, 0, 0.5);

    --text-primary: #F1F5F9;
    --text-muted: #94A3B8;
    --text-on-accent: #FFFFFF;

    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-tech: rgba(255, 85, 0, 0.2);

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-md: 12px;
    --radius-lg: 24px;
    --blur-glass: 20px;
    --transition-smooth: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);

    /* Legacy Variable Mappings */
    --bg-dark-1: var(--bg-deep);
    --bg-dark-2: var(--bg-elevated);
    --bg-dark-3: var(--bg-card);
    --border-color: var(--border-subtle);
    --text-light: var(--text-primary);
    --text-medium: var(--text-primary);
    --text-dark: var(--text-muted);
    
    --accent-save: #4CAF50;
    --accent-reset: #f44336;
    --accent-live: var(--accent);
    --accent-action: var(--accent);
}

body {
    font-family: var(--font-body);
    margin: 0;
    background-color: var(--bg-dark-1);
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

h1, h2, h3 {
    font-weight: 500;
    color: var(--text-medium);
    margin-top: 0;
}

h1 { font-size: 1.5rem; }
h2 { 
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dark);
    margin-bottom: 4px;
    text-transform: uppercase;
    font-weight: 600;
}

button, .action-btn {
    font-family: inherit;
    font-size: 0.9rem;
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background-color: var(--accent-action);
    color: var(--text-light);
    transition: background-color 0.2s, opacity 0.2s, color 0.2s;
}

button:hover:not(:disabled), .action-btn:hover:not(:disabled) {
    filter: brightness(1.2);
}

button:disabled, .action-btn:disabled {
    background-color: #555555;
    color: #999999;
    cursor: not-allowed;
    opacity: 0.7;
}

a.action-btn {
    text-decoration: none;
    display: inline-block;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 8px;
    background-color: var(--bg-dark-1);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-light);
    font-size: 0.9rem;
}

option {
    background-color: var(--bg-dark-1);
    color: var(--text-light);
}

input[type="number"] {
    max-width: 100px;
}

/* --- Layout --- */
.config-wrapper {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden; 
}

.controls-panel {
    width: 500px;
    flex-shrink: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark-2);
}

.preview-panel {
    flex-grow: 1;
    height: 100vh;
    padding: 2rem; 
    background-color: #000; 
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow-y: auto;
    gap: 1rem;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-dark-3);
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    z-index: 10;
}

.preview-header label {
    margin: 0;
    color: var(--text-light);
}

.preview-header select {
    width: auto;
    cursor: pointer;
}

.preview-aspect-wrapper {
    position: relative;
    border: 1px solid var(--border-color);
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    background-color: #fff;
    overflow: hidden; /* Ensure scaled content doesn't bleed */
    transition: width 0.3s ease, height 0.3s ease, aspect-ratio 0.3s ease, border-radius 0.3s ease;
    margin: 0 auto;
}

#previewFrame {
    position: absolute;
    top: 0;
    left: 0;
    border: none;
    transition: width 0.3s ease, height 0.3s ease, transform 0.3s ease;
    transform-origin: 0 0;
}

/* Signage & Desktop (16:9) */
.preview-aspect-wrapper.device-signage,
.preview-aspect-wrapper.device-desktop,
.preview-aspect-wrapper:not([class*="device-"]) {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16 / 9;
}
.preview-aspect-wrapper.device-signage #previewFrame,
.preview-aspect-wrapper.device-desktop #previewFrame,
.preview-aspect-wrapper:not([class*="device-"]) #previewFrame {
    width: 125%;
    height: 125%;
    transform: scale(0.8);
}

/* Tablet (e.g. iPad Mini 768x1024) */
.preview-aspect-wrapper.device-tablet {
    width: 537.6px;
    height: 716.8px;
    border-radius: 12px;
}
.preview-aspect-wrapper.device-tablet #previewFrame {
    width: 768px;
    height: 1024px;
    transform: scale(0.7);
}

/* Mobile (e.g. iPhone 13 Pro 390x844) */
.preview-aspect-wrapper.device-mobile {
    width: 312px;
    height: 675.2px;
    border-radius: 24px;
}
.preview-aspect-wrapper.device-mobile #previewFrame {
    width: 390px;
    height: 844px;
    transform: scale(0.8);
}

/* --- Header --- */
.config-header {
    padding: 1rem;
    background-color: var(--bg-dark-3);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.config-header h1 {
    margin: 0;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.action-btn.save { background-color: var(--accent-save); }
.action-btn.reset { background-color: var(--accent-reset); }
.action-btn.live { background-color: var(--accent-live); }

/* --- Main Controls --- */
.config-main {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
}

.config-card {
    background-color: var(--bg-dark-3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.config-card .description {
    font-size: 0.9rem;
    color: var(--text-dark);
    margin-top: -0.5rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.control-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.control-group-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
}

.input-group {
    flex-grow: 1;
}

.input-group.slider-group {
    display: flex;
    flex-direction: column;
}

input[type="range"] {
    width: 100%;
    margin-top: 8px;
}

#layoutControls {
    gap: 1rem;
    align-items: flex-end;
}
#layoutControls .input-group {
    flex-grow: 0;
}

/* --- Grids --- */
.font-control-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    gap: 1rem 1.5rem;
    align-items: flex-start;
}

.font-group-header {
    grid-column: 1 / -1;
    font-weight: 600;
    color: var(--text-light);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 1rem;
}
.font-control-grid .font-group-header:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

/* --- Color Picker --- */
input[type="color"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 100%;
    height: 40px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background-color: transparent;
}
input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}
input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 3px;
}

/* --- Toggle Switch --- */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
}
.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}
input:checked + .slider {
    background-color: var(--accent-save);
}
input:checked + .slider:before {
    transform: translateX(22px);
}
.slider.round {
    border-radius: 34px;
}
.slider.round:before {
    border-radius: 50%;
}

/* --- Color Rules & Drag and Drop --- */
#colorRulesList {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.color-rule-item {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-dark-2);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}

/* Handle Styling */
.drag-handle {
    cursor: grab;
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-right: 5px;
    -webkit-user-select: none;
    user-select: none;
}
.drag-handle:active {
    cursor: grabbing;
}

.color-rule-item.dragging {
    opacity: 0.5;
    border-color: var(--accent-save);
}

/* Drop Zone Highlighting */
.color-rule-item.drop-top {
    border-top: 3px solid var(--accent-live);
}
.color-rule-item.drop-bottom {
    border-bottom: 3px solid var(--accent-live);
}

.color-rule-item .input-group {
    flex-grow: 1;
}
.color-rule-item .input-group input[type="color"] {
    max-width: 100px;
}
.color-rule-item .delete-rule-btn {
    flex-shrink: 0;
    background-color: var(--accent-reset);
}

#addNewRuleControls {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}
#addNewRuleControls .input-group input[type="color"] {
    max-width: 100px;
}
#addNewRuleControls #addNewRuleBtn {
    background-color: var(--accent-save);
}