/* --- VARS & THEMES --- */
:root {
    --primary: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --bg-base: #f8fafc;
    --bg-gradient: linear-gradient(120deg, #e0c3fc 0%, #8ec5fc 100%);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.6);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Outfit', sans-serif;
}

[data-theme="dark"] {
    --primary: #818cf8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --bg-base: #0f172a;
    --bg-gradient: linear-gradient(120deg, #0f172a 0%, #1e1b4b 100%);
    --glass-bg: rgba(30, 41, 59, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
}

body {
    font-family: var(--font-body);
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    padding-top: 80px;
    min-height: 100vh;
}

/* --- COMPONENTS --- */

/* Nav */
.glass-nav {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    transition: 0.3s;
}

.brand-icon {
    width: 40px; height: 40px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 10px;
    display: grid; place-items: center;
    font-size: 1.2rem;
}

/* Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.05);
    transition: 0.3s;
}

/* Templates Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
}
.template-btn {
    background: white;
    border: 1px solid var(--glass-border);
    padding: 10px 5px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-main);
    transition: 0.2s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.template-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    color: var(--primary);
}
[data-theme="dark"] .template-btn { background: rgba(255,255,255,0.05); }

/* Type Selectors */
.type-selector-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.type-btn {
    border: 1px solid var(--glass-border);
    background: rgba(255,255,255,0.3);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    display: flex; gap: 6px; align-items: center;
    transition: 0.2s;
}
[data-theme="dark"] .type-btn { background: rgba(0,0,0,0.2); }
.type-btn:hover { border-color: var(--primary); color: var(--primary); }
.type-btn.active {
    background: var(--primary-gradient);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

/* --- PREVIEW AREA (FIXED) --- */
.preview-panel {
    width: 100%;
}

.canvas-wrapper {
    background: white;
    /* Checkerboard Pattern for Transparency */
    background-image:
    linear-gradient(45deg, #eee 25%, transparent 25%),
    linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%),
    linear-gradient(-45deg, transparent 75%, #eee 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;

    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.1);

    /* Strict Sizing to Fix Overflow */
    width: 100%;
    max-width: 380px;        /* Force max width */
    height: 380px;           /* Force fixed height */
    margin: 0 auto;          /* Center it */

    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;        /* Clip anything larger */
}

/* Ensure JS Generated Elements Fit */
#qr-canvas,
#barcode-canvas {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#qr-canvas svg,
#qr-canvas canvas,
#barcode-canvas {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain; /* Keep square ratio */
}

/* Offcanvas */
.glass-canvas {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
}

/* Ads */
.ad-space {
    background: rgba(0,0,0,0.03);
    border: 1px dashed var(--text-muted);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.leaderboard { width: 100%; max-width: 728px; height: 90px; }
.box-ad { width: 100%; height: 250px; }

/* Utilities */
.label-header {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: block;
}
.separator { opacity: 0.1; margin: 25px 0; }

/* Form Controls */
.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.5);
    border: 1px solid #d1d5db;
    border-radius: 10px;
}
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: rgba(15, 23, 42, 0.6);
    border-color: #475569;
    color: white;
}
.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
}

#modeSwitcher{
    height: 50px;
    width: 30%;
    display: flex;
    align-items: center;
    justify-content: space-around;
}