/* ============================================
   COMPONENTS - UI Elements & Sections
   ============================================ */

/* ============================================
   HEADER BANNER
   ============================================ */

.header-banner {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 136, 255, 0.05));
    backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--border);
    padding: var(--spacing-xl) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    flex: 1;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.logo-icon {
    font-size: var(--font-2xl);
    animation: spin 3s linear infinite;
}

.header-logo h1 {
    color: var(--text);
    font-size: var(--font-lg);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.header-tagline {
    font-size: var(--font-sm);
    color: var(--text-muted);
    margin: 0;
    font-weight: 500;
}

.header-decorative {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
    animation: pulse 2s ease-in-out infinite;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--primary-glow);
    transform: rotate(20deg);
}

.privacy-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    color: var(--text-muted);
    transition: all var(--transition-fast);
    font-size: var(--font-sm);
}

.privacy-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--primary-glow);
}

/* ============================================
   CONTENT WRAPPER
   ============================================ */

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

/* ============================================
   QR PANEL
   ============================================ */

.qr-panel {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 136, 255, 0.05));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    backdrop-filter: blur(20px);
}

.qr-display-wrapper {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 350px;
    border: 2px dashed var(--border);
    position: relative;
    overflow: hidden;
}

.qr-display {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
}

.placeholder-text {
    font-size: var(--font-base);
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   FLOATING ACTION BUTTONS
   ============================================ */

.floating-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.action-btn {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 136, 255, 0.2));
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
    flex-direction: column;
}

.action-btn:not(:disabled):hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.btn-icon {
    font-size: var(--font-lg);
}

.btn-label {
    font-size: var(--font-xs);
}

.print-btn {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.print-btn:not(:disabled):hover {
    background: var(--secondary-color);
    color: var(--dark-bg);
    box-shadow: 0 0 20px var(--secondary-color);
}

/* ============================================
   SHARE SECTION
   ============================================ */

.share-section {
    margin-top: var(--spacing-lg);
}

.share-title {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.share-btn {
    width: 100%;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: var(--font-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.share-btn:not(:disabled):hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.share-btn.facebook:not(:disabled):hover {
    background: linear-gradient(135deg, #1877f2, #0a66c2);
    border-color: #1877f2;
    color: white;
}

.share-btn.twitter:not(:disabled):hover {
    background: linear-gradient(135deg, #000000, #333333);
    border-color: #000000;
    color: white;
}

.share-btn.whatsapp:not(:disabled):hover {
    background: linear-gradient(135deg, #25d366, #128c57);
    border-color: #25d366;
    color: white;
}

.share-btn.telegram:not(:disabled):hover {
    background: linear-gradient(135deg, #0088cc, #005a96);
    border-color: #0088cc;
    color: white;
}

.share-btn.native:not(:disabled):hover {
    background: var(--primary-glow);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.share-btn.copy:not(:disabled):hover {
    background: var(--secondary-glow);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* ============================================
   CONTROL PANEL
   ============================================ */

.control-panel {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.02), rgba(0, 136, 255, 0.02));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 2px solid var(--border);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    height: fit-content;
}

.control-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.control-section label {
    font-weight: 600;
    color: var(--text);
    font-size: var(--font-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   INPUT TYPE TABS
   ============================================ */

.input-type-tabs {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-sm);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-size: var(--font-xs);
    font-weight: 600;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.tab-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-glow);
    color: var(--primary-color);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   SIZE CONTROL
   ============================================ */

.size-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.preset-btn {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.preset-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-glow);
    color: var(--primary-color);
}

.preset-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   ERROR CORRECTION GRID
   ============================================ */

.error-correction-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.error-btn {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.error-btn small {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

.error-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-glow);
    color: var(--primary-color);
}

.error-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow);
}

.error-btn.active small {
    color: var(--dark-bg);
}

/* ============================================
   COLOR GRID
   ============================================ */

.color-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.color-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.color-label {
    font-size: var(--font-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   HISTORY SECTION
   ============================================ */

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.history-header h2 {
    color: var(--text);
}

.history-count {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-sm);
}

.history-section {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.02), rgba(0, 136, 255, 0.02));
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 2px solid var(--border);
    backdrop-filter: blur(20px);
}

.history-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-lg);
    min-height: 150px;
}

.history-item {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.history-item:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.history-item-qr {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.history-item-qr canvas,
.history-item-qr svg {
    max-width: 100%;
    max-height: 100%;
}

.history-item-text {
    font-size: var(--font-xs);
    color: var(--text-muted);
    text-align: center;
    word-break: break-word;
    max-height: 40px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-item-delete {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent-color);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-xs);
    opacity: 0;
    transition: all var(--transition-fast);
}

.history-item:hover .history-item-delete {
    opacity: 1;
}

.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-icon {
    font-size: 48px;
    opacity: 0.5;
}

/* ============================================
   NOTIFICATION SYSTEM
   ============================================ */

.notification-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
    max-width: 400px;
}

.notification {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    animation: slideIn 300ms ease-out;
}

.notification.success {
    border-color: var(--primary-color);
    background: rgba(0, 255, 136, 0.1);
}

.notification.error {
    border-color: var(--accent-color);
    background: rgba(255, 0, 136, 0.1);
}

.notification.info {
    border-color: var(--secondary-color);
    background: rgba(0, 136, 255, 0.1);
}

.notification-icon {
    font-size: var(--font-lg);
    flex-shrink: 0;
}

.notification-message {
    flex: 1;
    font-size: var(--font-sm);
}