/* style.css - Premium UI Aesthetics */

:root {
    --bg-dark: #121212;
    --bg-darker: #0a0a0a;
    --bg-panel: #1e1e1e;
    --text-light: #f5f5f5;
    --text-muted: #a0a0a0;
    --accent: #6f42c1;
    --accent-hover: #5a32a3;
    --border-color: #333;
    
    font-family: 'Open Sans', 'Montserrat', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    height: 100vh;
    overflow: hidden;
    font-size: 14px;
}

/* App Layout */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.app-header {
    background-color: var(--bg-darker);
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    letter-spacing: 1px;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Base Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s;
    font-size: 0.9rem;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: #444;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #555;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background-color: #c82333;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* New Sidebar Navigation (Icons) */
.sidebar-nav {
    width: 60px;
    background-color: #1a1a1a;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
    border-right: 1px solid var(--border-color);
}

.nav-item {
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: all 0.2s;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-light);
}

.nav-item.active {
    background-color: var(--accent);
    color: white;
}

/* Secondary Edit Column */
.edit-column {
    width: 320px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 20px;
}

.edit-section {
    display: none;
    flex-direction: column;
}

.edit-section.active {
    display: flex;
}

.edit-section h3 {
    font-size: 1.1rem;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 5px;
    color: var(--text-light);
}

/* ── Aspect Ratio Preset Picker ─────────────────────────────── */
.aspect-preset-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.aspect-preset-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 5px;
    padding: 10px 4px 8px;
    background: rgba(255,255,255,0.04);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
    min-height: 72px;
}

.aspect-preset-btn:hover {
    background: rgba(111,66,193,0.15);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.aspect-preset-btn.active {
    background: rgba(111,66,193,0.25);
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(111,66,193,0.4);
}

.aspect-frame {
    border: 2px solid var(--text-muted);
    border-radius: 2px;
    background: rgba(255,255,255,0.06);
    flex-shrink: 0;
    transition: border-color 0.15s;
}

.aspect-preset-btn:hover .aspect-frame,
.aspect-preset-btn.active .aspect-frame {
    border-color: var(--accent);
}

.aspect-preset-btn span {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.aspect-preset-btn.active span {
    color: var(--accent);
}

/* ── Autosave Status Chip ────────────────────────────────────── */
.save-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 3px 8px;
    border-radius: 20px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-color);
    transition: color 0.3s, border-color 0.3s;
    white-space: nowrap;
}

.save-status.saving {
    color: #f0a500;
    border-color: #f0a500;
}

.save-status.saved {
    color: #2ecc71;
    border-color: #2ecc71;
}

/* Layer Controls Panel */
.layer-controls-panel {
    margin-top: auto;
    padding: 15px 20px;
    background-color: rgba(0, 0, 0, 0.4);
    border-top: 1px solid var(--border-color);
}

.layer-controls-panel h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-muted);
}

.layer-actions {
    display: flex;
    gap: 10px;
}

.layer-actions .btn {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px;
}

/* Layer List UI */
.layer-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.layer-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.2);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 0.2s;
}

.layer-list-item:hover {
    background: rgba(255,255,255,0.05);
}

.layer-list-item.selected {
    border-color: var(--accent);
    background: rgba(111, 66, 193, 0.2);
}

.layer-list-item .layer-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    overflow: hidden;
}

.layer-preview {
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: #444;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 10px;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.1);
}

.layer-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.layer-preview-text {
    font-weight: 700;
    font-family: 'Bebas Neue', sans-serif;
    color: var(--accent);
}

.layer-preview-shape {
    width: 20px;
    height: 20px;
    background: var(--text-muted);
}

.layer-preview-shape.circle, .layer-preview-shape.oval { border-radius: 50%; }
.layer-preview-shape.triangle { clip-path: polygon(50% 0%, 0% 100%, 100% 100%); }

.layer-list-item .layer-name {
    font-size: 0.85em;
    pointer-events: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-list-item .btn-delete-layer {
    background: transparent;
    border: none;
    color: #dc3545;
    cursor: pointer;
    padding: 4px;
    border-radius: 3px;
}

.layer-list-item .btn-delete-layer:hover {
    background: rgba(220, 53, 69, 0.2);
}

/* Forms and Controls */
.control-group {
    margin-bottom: 15px;
}

.control-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.custom-select, .custom-file-input {
    width: 100%;
    padding: 8px 12px;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 4px;
    outline: none;
    font-family: 'Open Sans', sans-serif;
}

.custom-select:focus, .custom-file-input:focus {
    border-color: var(--accent);
}

.custom-file-input::-webkit-file-upload-button {
    background-color: var(--accent);
    color: white;
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    margin-right: 10px;
}

.color-picker-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
}

.color-picker-wrap input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.color-picker-wrap input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-wrap input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #333;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}

/* Preview Panel (Right side 2/3) */
.preview-panel {
    flex: 1;
    background-color: #1a1a1a;
    /* Subtle dot grid for workspace feel */
    background-image: radial-gradient(#333 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding: 40px;
    position: relative;
}

/* Zoom Controls */
.canvas-zoom-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    padding: 8px 15px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 100;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.canvas-zoom-controls button {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1rem;
    padding: 5px;
    transition: transform 0.2s;
}

.canvas-zoom-controls button:hover {
    transform: scale(1.2);
    color: var(--accent);
}

.canvas-zoom-controls input[type="range"] {
    width: 100px;
    height: 4px;
}

/* Canvas Wrapper Container */
.canvas-container {
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.05);
    transform-origin: center center;
    transition: transform 0.1s ease-out;
}

/* The Target Exporting Canvas */
.ecard-canvas {
    background-color: #fff;
    /* Checkerboard transparency pattern */
    background-image: 
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%), 
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%), 
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    
    position: relative;
    overflow: hidden;
    /* Default state will be responsive based on JS later */
    width: 400px;
    height: 500px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    transition: width 0.3s ease-in-out, height 0.3s ease-in-out;
}

.canvas-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Let clicks pass through layers by default */
}

#layer-bg-image {
    background-size: 100% auto; /* Controlled via JS */
    background-position: 50% 50%;
    background-repeat: no-repeat;
    transition: background-size 0.1s, background-position 0.1s;
}

#layer-gradient {
    /* Base placeholder gradient */
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), rgba(0,0,0,0.8));
}

.interactive-layer {
    pointer-events: auto; /* Allow interactions on this layer */
    z-index: 10;
}

/* Draggable Items */
.draggable-item {
    position: absolute;
    cursor: move;
    user-select: none;
    top: 0;
    left: 0;
}

.draggable-item.selected-item {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
    pointer-events: auto;
}

/* Resize Handles */
.resize-handle {
    position: absolute;
    width: 10px; /* Slightly larger for easier clicking */
    height: 10px;
    background: white;
    border: 1.5px solid var(--accent);
    border-radius: 50%;
    z-index: 1001;
    display: none;
    pointer-events: auto; /* Ensure handles catch events */
}

.selected-item .resize-handle {
    display: block;
}

.handle-nw { top: -5px; left: -5px; cursor: nw-resize; }
.handle-n  { top: -5px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.handle-ne { top: -5px; right: -5px; cursor: ne-resize; }
.handle-e  { top: 50%; right: -5px; transform: translateY(-50%); cursor: e-resize; }
.handle-se { bottom: -5px; right: -5px; cursor: se-resize; }
.handle-s  { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.handle-sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.handle-w  { top: 50%; left: -5px; transform: translateY(-50%); cursor: w-resize; }

.draggable-item img {
    pointer-events: none; /* Prevent browser image drag behavior */
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-text {
    color: #ccc;
    text-align: center;
    margin-top: 50%;
    transform: translateY(-50%);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

/* Masked Shapes Logic */
.masked-shape-wrapper {
    /* Contains the shadow and the border structure */
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    margin: 0;
}

.masked-shape-inner {
    /* Holds the clipping path and the image */
    width: 100%;
    height: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.masked-shape-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

/* Text Element Logic */
.text-element {
    white-space: pre-wrap;   /* Preserve spaces and newlines */
    word-break: break-word;
    display: block;
    line-height: 1.2;
    padding: 10px;
}

/* MOBILE RESPONSIVE LAYOUT */
@media (max-width: 768px) {
    .main-content {
        display: grid;
        grid-template-columns: 60px 1fr;
        grid-template-rows: 60vh 1fr; /* Preview takes 60% of vertical space, Editor takes rest */
        height: calc(100vh - 60px);
        overflow: hidden;
    }

    .sidebar-nav {
        grid-column: 1;
        grid-row: 1 / span 2;
        width: 60px;
        height: 100%;
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 15px;
        border-right: 1px solid var(--border-color);
        background-color: #1a1a1a;
        position: relative; /* Not fixed anymore */
        z-index: 10;
    }

    .nav-item {
        width: 42px;
        height: 42px;
        margin-bottom: 15px;
    }

    .preview-panel {
        grid-column: 2;
        grid-row: 1;
        height: 100%;
        overflow: hidden; /* No scroller on preview as requested */
        padding: 10px;
        border-bottom: 1px solid var(--border-color);
        background-color: #151515;
    }

    .edit-column {
        grid-column: 2;
        grid-row: 2;
        width: 100%;
        height: 100%;
        overflow-y: auto; /* Scroller only on the editor */
        background-color: var(--bg-panel);
        padding: 15px;
        padding-bottom: 150px;
        border-right: none;
    }

    /* Resize Handles Enlarger for Mobile Touch */
    .resize-handle {
        width: 30px;
        height: 30px;
    }
    .handle-nw { top: -15px; left: -15px; }
    .handle-n  { top: -15px; left: 50%; transform: translateX(-50%); }
    .handle-ne { top: -15px; right: -15px; }
    .handle-e  { top: 50%; right: -15px; transform: translateY(-50%); }
    .handle-se { bottom: -15px; right: -15px; }
    .handle-s  { bottom: -15px; left: 50%; transform: translateX(-50%); }
    .handle-sw { bottom: -15px; left: -15px; }
    .handle-w  { top: 50%; left: -15px; transform: translateY(-50%); }

    .canvas-zoom-controls {
        top: 5px;
        right: 5px;
        transform: scale(0.7);
        transform-origin: top right;
    }

    .app-header .logo {
        font-size: 1rem;
    }

    .header-actions .btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .canvas-container {
        padding: 10px;
    }
}

.placeholder-text {
    pointer-events: none; /* Never block interactions */
}