:root {
    --primary-color: #007AFF;
    --success-color: #00C853;
    --error-color: #FF3B30;
    --warning-color: #FF9500;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-card: #ffffff;
    --bg-hover: #f0f0f2;
    
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --text-tertiary: #515154;
    
    --border-color: #d2d2d7;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --bg-card: #1c1c1e;
    --bg-hover: #2c2c2e;
    
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --text-tertiary: #98989d;
    
    --border-color: #38383a;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

html {
    overflow-x: hidden;
}

body {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: 100%;
    position: relative;
}

.app-header {
    background: rgba(255, 255, 255, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(3px) saturate(200%) brightness(1.1);
    -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(1.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
                inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    width: 100%;
    will-change: transform;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

[data-theme="dark"] .app-header {
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(3px) saturate(200%) brightness(0.8);
    -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(0.8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
                inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.app-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.install-button {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.install-button:hover {
    background: #0066CC;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.install-button svg {
    width: 20px;
    height: 20px;
}

.install-button-text {
    display: inline-block;
}

.install-button.hidden {
    display: none;
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-hover);
    border-color: var(--primary-color);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

.sun-icon {
    display: block;
}

.moon-icon {
    display: none;
}

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="dark"] .moon-icon {
    display: block;
}

[data-theme="dark"] .app-logo {
    filter: brightness(0.9);
}

.main-content {
    flex: 1;
    max-width: 1600px;
    margin: 0 auto;
    padding: 2rem;
    padding-bottom: 100px;
    width: 100%;
    display: grid;
    grid-template-columns: 250px 1fr 1fr;
    gap: 1.5rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0 0.5rem;
    margin-bottom: 0.5rem;
}

.type-menu {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.type-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.type-menu-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.type-menu-item.active {
    background-color: var(--primary-color);
    color: white;
}

.type-menu-item.active:hover {
    background-color: var(--primary-color);
    opacity: 0.9;
}

.type-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Apply filter to SVG icons in img tags for theme compatibility */
.type-menu-item .type-icon {
    filter: brightness(0) saturate(100%);
}

.type-menu-item:hover .type-icon {
    filter: brightness(0) saturate(100%);
}

.type-menu-item.active .type-icon {
    filter: brightness(0) invert(1);
}

[data-theme="dark"] .type-menu-item .type-icon {
    filter: brightness(0) invert(0.7);
}

[data-theme="dark"] .type-menu-item:hover .type-icon {
    filter: brightness(0) invert(0.9);
}

[data-theme="dark"] .type-menu-item.active .type-icon {
    filter: brightness(0) invert(1);
}

.mobile-type-select {
    display: none;
}

.content-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.preview-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow-x: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.form-col-full {
    flex: 1 1 100%;
}

.form-col-2 {
    flex: 1 1 50%;
}

.form-col-3 {
    flex: 1 1 33.33%;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-hint {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-top: 0.375rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    opacity: 0.8;
}

.url-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.badge-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.badge-value {
    color: var(--primary-color);
    font-weight: 600;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    touch-action: manipulation;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-range {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    outline: none;
    transition: background var(--transition-fast);
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(0, 122, 255, 0.1);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.form-range::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(0, 122, 255, 0.1);
}

.color-input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.form-color {
    width: 50px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-color:hover {
    border-color: var(--primary-color);
}

.color-hex {
    flex: 1;
    font-family: 'JetBrains Mono', monospace;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

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

.btn-primary:hover {
    background-color: #0051d5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.sticky-action-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.3);
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 999;
    backdrop-filter: blur(3px) saturate(200%) brightness(1.1);
    -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(1.1);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .sticky-action-container {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(3px) saturate(200%) brightness(0.8);
    -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(0.8);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.sticky-action-container .btn {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    display: block;
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--primary-color);
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--primary-color);
    padding: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-text:hover {
    opacity: 0.7;
}

.hidden {
    display: none !important;
}

.input-fields .form-group {
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qr-preview {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 2rem;
    position: relative;
}

.preview-placeholder {
    text-align: center;
    color: var(--text-tertiary);
}

.preview-placeholder svg {
    width: 100px;
    height: 100px;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.preview-placeholder p {
    font-size: 0.875rem;
}

.qr-code-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-code-container canvas,
.qr-code-container img {
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.history-list {
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    border: 1px solid transparent;
}

[data-theme="dark"] .history-item {
    background-color: #252527;
    border-color: rgba(255, 255, 255, 0.08);
}

.history-item:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: -0.25rem;
    left: 1rem;
    right: 1rem;
    height: 1px;
    background-color: var(--border-color);
    opacity: 0.3;
}

.history-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
    transform: translateX(2px);
}

.history-item-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 1;
    transition: opacity var(--transition-fast);
    margin-left: auto;
}

.history-action-btn {
    padding: 0.375rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.history-action-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.history-action-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

.history-show-more {
    text-align: center;
    padding: 1rem;
    margin-top: 0.5rem;
}

.history-show-more button {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.history-show-more button:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.history-item-preview {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
}

.history-item-preview canvas,
.history-item-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.history-item-details {
    flex: 1;
    min-width: 0;
}

.history-item-type {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.history-type-badge {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-tertiary);
}

.history-type-badge.type-url { background-color: #007AFF; }
.history-type-badge.type-wifi { background-color: #00C853; }
.history-type-badge.type-email { background-color: #FF9800; }
.history-type-badge.type-phone { background-color: #9C27B0; }
.history-type-badge.type-sms { background-color: #00BCD4; }
.history-type-badge.type-whatsapp { background-color: #25D366; }
.history-type-badge.type-vcard { background-color: #FF5722; }
.history-type-badge.type-text { background-color: var(--text-tertiary); }

.history-item-content {
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-item-date {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.history-empty {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-tertiary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.history-empty-icon {
    width: 64px;
    height: 64px;
    opacity: 0.3;
    color: var(--text-tertiary);
}

.history-empty-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.history-empty-title {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.history-empty-subtitle {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.history-item.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.notification {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-normal);
}

.notification.show {
    transform: translateX(-50%) translateY(-100%);
    opacity: 1;
}

.notification.success {
    border-color: var(--success-color);
    background-color: rgba(0, 200, 83, 0.3);
}

.notification.error {
    border-color: var(--error-color);
    background-color: rgba(255, 59, 48, 0.3);
}

.notification-message {
    font-size: 0.875rem;
    color: var(--text-primary);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

#customFrameTextGroup, #autoFrameOptions {
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

#customFrameTextGroup.hidden, #autoFrameOptions.hidden {
    opacity: 0;
    transform: translateY(-10px);
}

.frame-option-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 0.5rem;
}

.frame-option-cards.single {
    grid-template-columns: 1fr;
}

.frame-option-card {
    display: block;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-normal);
}

.frame-option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.frame-option-card .card-content {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    transition: all var(--transition-normal);
}

.frame-option-card:hover .card-content {
    border-color: var(--primary-color);
    background-color: var(--bg-hover);
}

.frame-option-card input[type="radio"]:checked + .card-content,
.frame-option-card.selected .card-content {
    border-color: var(--primary-color);
    background-color: var(--bg-hover);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.frame-option-card .card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.frame-option-card .card-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .frame-option-cards {
        grid-template-columns: 1fr;
    }
}