/* ==========================================
   QuickQR - CSS STYLESHEET
   Features: Glassmorphism, Theme Variables, 
             Animations & Fully Responsive
   ========================================== */
/* 1. Global Reset & Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    /* Dark Theme Core Variables (Default) */
    --bg-primary: #0a0e17;
    --bg-mesh: radial-gradient(at 0% 0%, hsla(253, 16%, 9%, 1) 0, transparent 50%),
               radial-gradient(at 50% 0%, hsla(225, 45%, 16%, 0.5) 0, transparent 50%),
               radial-gradient(at 100% 0%, hsla(260, 45%, 14%, 0.5) 0, transparent 50%),
               radial-gradient(at 50% 100%, hsla(220, 50%, 10%, 1) 0, transparent 100%);
    
    --card-bg: rgba(15, 23, 42, 0.45);
    --card-border: rgba(255, 255, 255, 0.07);
    --card-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-text: #f8fafc;
    --input-focus: #818cf8;
    
    --btn-secondary-bg: rgba(255, 255, 255, 0.05);
    --btn-secondary-hover: rgba(255, 255, 255, 0.1);
    --btn-secondary-text: #f8fafc;
    --btn-secondary-border: rgba(255, 255, 255, 0.08);
    --btn-danger: #ef4444;
    --btn-danger-hover: #f87171;
    --btn-danger-bg: rgba(239, 68, 68, 0.1);
    --btn-danger-border: rgba(239, 68, 68, 0.2);
    --toast-bg: rgba(30, 41, 59, 0.9);
    --toast-border: rgba(255, 255, 255, 0.1);
    --toast-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    --history-item-bg: rgba(255, 255, 255, 0.03);
    --history-item-border: rgba(255, 255, 255, 0.06);
    /* Transitions */
    --transition-speed: 0.3s;
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}
/* Light Theme Variables */
body.light-theme {
    --bg-primary: #f4f6fa;
    --bg-mesh: radial-gradient(at 0% 0%, hsla(210, 60%, 94%, 1) 0, transparent 50%),
               radial-gradient(at 50% 0%, hsla(225, 50%, 92%, 0.8) 0, transparent 50%),
               radial-gradient(at 100% 0%, hsla(260, 50%, 91%, 0.8) 0, transparent 50%),
               radial-gradient(at 50% 100%, hsla(220, 50%, 88%, 1) 0, transparent 100%);
    
    --card-bg: rgba(255, 255, 255, 0.6);
    --card-border: rgba(0, 0, 0, 0.06);
    --card-shadow: 0 16px 36px rgba(31, 41, 55, 0.07);
    
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    --accent-color: #4f46e5;
    --accent-glow: rgba(79, 70, 229, 0.15);
    --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    
    --input-bg: rgba(255, 255, 255, 0.8);
    --input-border: rgba(0, 0, 0, 0.12);
    --input-text: #0f172a;
    --input-focus: #4f46e5;
    
    --btn-secondary-bg: rgba(0, 0, 0, 0.04);
    --btn-secondary-hover: rgba(0, 0, 0, 0.08);
    --btn-secondary-text: #334155;
    --btn-secondary-border: rgba(0, 0, 0, 0.06);
    --btn-danger: #dc2626;
    --btn-danger-hover: #b91c1c;
    --btn-danger-bg: rgba(220, 38, 38, 0.05);
    --btn-danger-border: rgba(220, 38, 38, 0.12);
    --toast-bg: rgba(255, 255, 255, 0.95);
    --toast-border: rgba(0, 0, 0, 0.05);
    --toast-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    --history-item-bg: rgba(0, 0, 0, 0.02);
    --history-item-border: rgba(0, 0, 0, 0.05);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}
/* Background Gradients and Glowing Orbs */
.bg-gradient-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-mesh);
    z-index: -2;
    transition: background var(--transition-speed) ease;
}
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.35;
    z-index: -1;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease;
}
.bg-glow-1 {
    top: -10%;
    left: 15%;
    width: 400px;
    height: 400px;
    background: #6366f1;
}
.bg-glow-2 {
    bottom: 10%;
    right: 15%;
    width: 450px;
    height: 450px;
    background: #a855f7;
}
body.light-theme .bg-glow {
    opacity: 0.15;
}
/* 2. Main Layout Container */
.app-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 100vh;
}
/* 3. Header Styling */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--card-border);
}
.header-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.logo-icon {
    background: var(--accent-gradient);
    color: #fff;
    width: 3rem;
    height: 3rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--accent-glow);
    animation: pulseGlow 3s infinite alternate;
}
.logo-icon i {
    width: 1.75rem;
    height: 1.75rem;
}
.logo-text h1 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.logo-tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
}
/* Theme Toggle Button */
.btn-theme-toggle {
    background: var(--btn-secondary-bg);
    border: 1px solid var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-bounce);
    outline: none;
    backdrop-filter: blur(8px);
}
.btn-theme-toggle:hover {
    transform: rotate(15deg) scale(1.08);
    background: var(--btn-secondary-hover);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}
.btn-theme-toggle i {
    position: absolute;
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.5s ease, opacity 0.3s ease;
}
.sun-icon {
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}
.moon-icon {
    opacity: 1;
    transform: scale(1) rotate(0);
}
body.light-theme .sun-icon {
    opacity: 1;
    transform: scale(1) rotate(0);
}
body.light-theme .moon-icon {
    opacity: 0;
    transform: scale(0.5) rotate(90deg);
}
/* 4. Glassmorphism Card Style */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow: hidden;
    transition: transform var(--transition-speed) ease, border-color var(--transition-speed) ease;
}
.card-header {
    padding: 1.25rem 1.75rem;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
}
.card-header h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.card-header h2 i {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--accent-color);
}
.card-body {
    padding: 1.75rem;
}
/* 5. Workspace Grid */
.app-workspace {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 2rem;
}
/* Input Fields and Controls */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}
.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}
.textarea-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
}
textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    padding-bottom: 2rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: var(--input-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.5;
    resize: vertical;
    outline: none;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}
textarea:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.char-counter {
    position: absolute;
    bottom: 0.75rem;
    right: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    pointer-events: none;
}
.input-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.25rem;
}
/* Buttons */
.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-body);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-bounce);
    outline: none;
    border: 1px solid var(--btn-secondary-border);
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}
.btn-action:hover {
    background: var(--btn-secondary-hover);
    transform: translateY(-2px);
}
.btn-action:active {
    transform: translateY(0);
}
.btn-action i {
    width: 0.95rem;
    height: 0.95rem;
}
.btn-danger {
    color: var(--btn-danger);
    background: var(--btn-danger-bg);
    border-color: var(--btn-danger-border);
}
.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--btn-danger);
    color: #fff;
}
/* Customization Options Inner Header */
.customization-options h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
}
.control-row {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}
.control-field {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.control-field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}
/* Custom Color Picker Container */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    transition: border-color var(--transition-speed) ease;
}
.color-picker-wrapper:focus-within {
    border-color: var(--input-focus);
}
.color-picker-wrapper input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 2rem;
    height: 2rem;
    border-radius: 6px;
    cursor: pointer;
    background: none;
}
.color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}
.color-picker-wrapper input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--card-border);
    border-radius: 6px;
}
.color-value-text {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}
/* Dropdowns Style */
select {
    padding: 0.65rem 0.75rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    color: var(--input-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition-speed) ease;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.25rem;
}
select:focus {
    border-color: var(--input-focus);
}
select option {
    background-color: var(--bg-primary);
    color: var(--input-text);
}
/* 6. Live Preview Panel */
.preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    min-height: 380px;
}
.qr-display-box {
    width: 280px;
    height: 280px;
    background: rgba(255, 255, 255, 0.02);
    border: 2px dashed var(--card-border);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-speed) var(--transition-bounce);
}
.qr-display-box.active {
    background: #ffffff; /* White background internally for scanned safety */
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}
body.light-theme .qr-display-box.active {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
canvas {
    max-width: 100%;
    max-height: 100%;
    display: none;
    animation: scaleIn 0.4s var(--transition-bounce);
    padding: 10px;
}
.qr-display-box.active canvas {
    display: block;
}
/* Preview Placeholder */
.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    gap: 1rem;
    transition: opacity 0.3s ease;
}
.qr-display-box.active .preview-placeholder {
    display: none;
}
.placeholder-icon {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background: var(--btn-secondary-bg);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    animation: floatAnim 4s infinite ease-in-out;
}
.placeholder-icon i {
    width: 2.25rem;
    height: 2.25rem;
}
.preview-placeholder p {
    font-size: 0.85rem;
    line-height: 1.4;
    max-width: 180px;
}
/* Download Button (Call to Action) */
.btn-download {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.9rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-body);
    color: #ffffff;
    background: var(--accent-gradient);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--accent-glow);
    transition: all var(--transition-speed) var(--transition-bounce);
    outline: none;
}
.btn-download:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
    filter: brightness(1.1);
}
.btn-download:active:not(:disabled) {
    transform: translateY(-1px);
}
.btn-download:disabled {
    background: var(--btn-secondary-bg);
    color: var(--text-muted);
    border: 1px solid var(--card-border);
    box-shadow: none;
    cursor: not-allowed;
}
.btn-download i {
    width: 1.2rem;
    height: 1.2rem;
}
/* 7. History Section */
.history-panel {
    margin-top: 1rem;
}
.history-header {
    padding: 1.25rem 1.75rem;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.history-header h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.history-header h2 i {
    color: var(--accent-color);
    width: 1.25rem;
    height: 1.25rem;
}
.btn-danger-outline {
    background: transparent;
    border: 1px solid var(--btn-danger-border);
    color: var(--btn-danger);
}
.btn-danger-outline:hover {
    background: var(--btn-danger-bg);
    border-color: var(--btn-danger);
}
.history-grid {
    padding: 1.75rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
    min-height: 100px;
}
.history-empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem;
    color: var(--text-muted);
    gap: 0.75rem;
    text-align: center;
}
.history-empty-state i {
    width: 2rem;
    height: 2rem;
}
.history-empty-state p {
    font-size: 0.85rem;
}
/* History Card Item */
.history-item {
    background: var(--history-item-bg);
    border: 1px solid var(--history-item-border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-speed) var(--transition-bounce);
    overflow: hidden;
    animation: scaleIn 0.35s var(--transition-bounce);
}
.history-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
    background: var(--btn-secondary-bg);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
body.light-theme .history-item:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
}
.history-qr-thumb {
    width: 90px;
    height: 90px;
    background: white;
    border-radius: 6px;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.history-qr-thumb img {
    max-width: 100%;
    max-height: 100%;
}
.history-details {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
}
.history-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 0.25rem;
}
.history-date {
    font-size: 0.7rem;
    color: var(--text-muted);
}
/* Delete single history item button */
.btn-delete-item {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(239, 68, 68, 0.1);
    border: none;
    color: var(--btn-danger);
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background 0.2s ease;
    z-index: 5;
}
.btn-delete-item:hover {
    background: rgba(239, 68, 68, 0.2);
}
.history-item:hover .btn-delete-item {
    opacity: 1;
}
.btn-delete-item i {
    width: 0.85rem;
    height: 0.85rem;
}
/* 8. Footer */
.app-footer {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}
.footer-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.user-placeholders {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.user-placeholders strong {
    color: var(--text-secondary);
}
.separator {
    color: var(--card-border);
}
/* Built for Digital Heroes Special Glow CTA Button */
.btn-digital-heroes {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-digital-heroes::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: all 0.6s ease;
}
.btn-digital-heroes:hover::before {
    left: 100%;
}
.btn-digital-heroes:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.6), 0 0 0 2px rgba(37, 99, 235, 0.2);
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}
.btn-digital-heroes i {
    width: 0.9rem;
    height: 0.9rem;
}
/* 9. Toast Notification System */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 9999;
    pointer-events: none;
}
.toast {
    pointer-events: auto;
    background: var(--toast-bg);
    border: 1px solid var(--toast-border);
    box-shadow: var(--toast-shadow);
    color: var(--text-primary);
    padding: 0.9rem 1.25rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-size: 0.85rem;
    font-weight: 500;
    min-width: 250px;
    max-width: 400px;
    animation: toastIn 0.35s var(--transition-bounce), toastOut 0.3s forwards 3.5s;
    transition: all 0.3s ease;
}
.toast i {
    width: 1.1rem;
    height: 1.1rem;
}
.toast-success i {
    color: #10b981;
}
.toast-info i {
    color: #3b82f6;
}
.toast-error i {
    color: #ef4444;
}
/* 10. Keyframes & Animations */
@keyframes toastIn {
    from {
        transform: translateY(1.5rem) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}
@keyframes toastOut {
    from {
        transform: scale(1);
        opacity: 1;
    }
    to {
        transform: scale(0.9) translateY(1rem);
        opacity: 0;
    }
}
@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}
@keyframes floatAnim {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}
@keyframes pulseGlow {
    from {
        box-shadow: 0 4px 15px var(--accent-glow);
    }
    to {
        box-shadow: 0 4px 25px rgba(168, 85, 247, 0.6);
    }
}
/* Responsive Styles */
@media (max-width: 992px) {
    .app-workspace {
        grid-template-columns: 1fr;
    }
    .preview-container {
        min-height: auto;
        padding: 1rem 0;
    }
}
@media (max-width: 600px) {
    .app-container {
        padding: 1.5rem 1rem;
        gap: 1.5rem;
    }
    
    .logo-text h1 {
        font-size: 1.5rem;
    }
    
    .control-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .app-footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-info {
        align-items: center;
    }
    
    .user-placeholders {
        justify-content: center;
    }
    
    .toast-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }
    
    .toast {
        min-width: auto;
    }
}