.center-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    gap: 12px;
}

/* UTM Builder Styles - Matching Site Design */

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

:root {
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 2.5rem;
    --space-3xl: 3rem;
    --space-4xl: 4rem;
    --space-5xl: 5rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    --text-primary-color: #ffffff;
    --text-secondary-color: rgba(255, 255, 255, 0.8);
    --background-color: #000000;
    --primary-color: #4ade80;
    --accent-color: #22c55e;
    
    /* Typography Scale */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
    --font-4xl: 2.25rem;
    --font-5xl: 3rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* UTM Builder specific colors */
    --utm-required: #ef4444;
    --utm-optional: #6b7280;
    --utm-valid: #22c55e;
    --utm-warning: #f59e0b;
}

/* Background */
body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/desktop Bg image.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    color: white;
    overflow-x: hidden;
}

/* Mobile background */
@media (max-width: 768px) {
    body {
        background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/mobile Bg image.webp');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    transition: all 0.3s ease;
}

/* Back Button */
.back-button {
    position: absolute;
    top: 30px;
    left: 30px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    z-index: 100;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(-5px);
    color: white;
    text-decoration: none;
}

/* Header */
.page-header {
    padding: 120px 0 60px;
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
    font-size: 14px;
    opacity: 0.8;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.breadcrumb a:hover {
    opacity: 0.8;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.5);
}

.page-header h1 {
    font-size: var(--font-4xl);
    font-weight: var(--font-extrabold);
    margin-bottom: 20px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.emoji-visible {
    font-size: 2.5rem;
    margin-right: 15px;
}

.page-header p {
    font-size: var(--font-lg);
    color: var(--text-secondary-color);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tool Section */
.tool-section {
    padding: 40px 0 80px;
}

.utm-builder-layout {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* URL Input Card */
.url-input-card {
    padding: 30px;
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.tool-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.tool-name {
    font-size: var(--font-xl);
    font-weight: var(--font-semibold);
    margin-bottom: 5px;
    color: var(--text-primary-color);
}

.tool-description {
    font-size: var(--font-sm);
    color: var(--text-secondary-color);
    line-height: 1.5;
}

.url-input-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-wrapper {
    position: relative;
}

#websiteUrl {
    width: 100%;
    padding: 16px 50px 16px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    font-size: var(--font-base);
    transition: all 0.3s ease;
}

#websiteUrl:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.validate-url {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary-color);
    cursor: pointer;
    font-size: 16px;
    transition: color 0.3s ease;
}

.validate-url:hover {
    color: var(--text-primary-color);
}

.url-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggestion-btn {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    color: var(--text-secondary-color);
    font-size: var(--font-xs);
    cursor: pointer;
    transition: all 0.3s ease;
}

.suggestion-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary-color);
}

/* UTM Parameters Grid */
.utm-parameters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.parameter-card {
    padding: 25px;
    position: relative;
}

.parameter-card.optional {
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.parameter-icon {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.parameter-icon.required {
    background: rgba(239, 68, 68, 0.1);
    color: var(--utm-required);
}

.parameter-name {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    margin-bottom: 5px;
    color: var(--text-primary-color);
}

.optional-label {
    font-size: var(--font-sm);
    color: var(--utm-optional);
    font-weight: var(--font-normal);
}

.parameter-description {
    font-size: var(--font-sm);
    color: var(--text-secondary-color);
    line-height: 1.4;
}

.parameter-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.parameter-content input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: white;
    font-size: var(--font-sm);
    transition: all 0.3s ease;
}

.parameter-content input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.parameter-content input:required {
    border-color: rgba(239, 68, 68, 0.3);
}

.parameter-content input:required:valid {
    border-color: rgba(34, 197, 94, 0.3);
}

.parameter-examples {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.example-label {
    font-size: var(--font-xs);
    color: var(--text-secondary-color);
    margin-right: 4px;
}

.example-btn {
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-secondary-color);
    font-size: var(--font-xs);
    cursor: pointer;
    transition: all 0.3s ease;
}

.example-btn:hover {
    background: var(--primary-color);
    color: black;
    border-color: var(--primary-color);
}

/* Generated URL Card */
.generated-url-card {
    padding: 30px;
}

.generated-url-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.url-display textarea {
    width: 100%;
    min-height: 80px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
    font-size: var(--font-sm);
    resize: vertical;
    transition: all 0.3s ease;
}

.url-display textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.url-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

/* Generate Button Card */
.generate-button-card {
    text-align: center;
    padding: 30px;
}

.generate-button-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.btn-large {
    padding: 15px 30px;
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    border-radius: 12px;
    min-width: 200px;
}

.generate-description {
    color: var(--text-secondary-color);
    font-size: var(--font-sm);
    margin: 0;
}

/* Message Styles */
.message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    display: none;
    animation: slideIn 0.3s ease;
}

.message.success {
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ade80;
}

.message.error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.message.info {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #3b82f6;
}

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

/* Notification System */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.notification {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0;
    min-width: 300px;
    max-width: 400px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.notification-show {
    opacity: 1;
    transform: translateX(0);
}

.notification-hide {
    opacity: 0;
    transform: translateX(100%);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    color: white;
}

.notification-content i {
    font-size: 18px;
    flex-shrink: 0;
}

.notification-content span {
    flex: 1;
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    line-height: 1.4;
}

.notification-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.notification-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Notification Types */
.notification-success {
    border-left: 4px solid #22c55e;
}

.notification-success i {
    color: #22c55e;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-error i {
    color: #ef4444;
}

.notification-info {
    border-left: 4px solid #3b82f6;
}

.notification-info i {
    color: #3b82f6;
}

/* Mobile Notifications */
@media (max-width: 768px) {
    .notification-container {
        top: 10px;
        right: 10px;
        left: 10px;
        align-items: stretch;
    }
    
    .notification {
        min-width: auto;
        max-width: none;
        transform: translateY(-100%);
    }
    
    .notification-show {
        transform: translateY(0);
    }
    
    .notification-hide {
        transform: translateY(-100%);
    }
    
    .notification-content {
        padding: 14px 16px;
    }
    
    .notification-content span {
        font-size: var(--font-xs);
    }
}

.url-analytics {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.analytics-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.analytics-label {
    font-size: var(--font-xs);
    color: var(--text-secondary-color);
}

.analytics-value {
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary-color);
}

/* QR Code Card */
.qr-code-card {
    padding: 30px;
}

.qr-code-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.qr-code-display {
    background: white;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-code-controls {
    display: flex;
    gap: 12px;
}

/* Templates Card */
.templates-card {
    padding: 30px;
}

.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.template-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.template-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.template-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.template-name {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    margin-bottom: 8px;
    color: var(--text-primary-color);
}

.template-description {
    font-size: var(--font-sm);
    color: var(--text-secondary-color);
    margin-bottom: 12px;
    line-height: 1.4;
}

.template-params {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.param-tag {
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary-color);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: var(--font-xs);
}

/* Bulk Generator Card */
.bulk-generator-card {
    padding: 30px;
}

.bulk-generator-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.bulk-input textarea {
    width: 100%;
    min-height: 120px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    font-family: 'Courier New', monospace;
    font-size: var(--font-sm);
    resize: vertical;
    transition: all 0.3s ease;
}

.bulk-input textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.bulk-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.bulk-results {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.results-header h4 {
    font-size: var(--font-lg);
    color: var(--text-primary-color);
}

.results-count {
    font-size: var(--font-sm);
    color: var(--primary-color);
    font-weight: var(--font-medium);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
}

.result-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.result-url {
    font-family: 'Courier New', monospace;
    font-size: var(--font-xs);
    color: var(--text-secondary-color);
    word-break: break-all;
    flex: 1;
}

.result-copy {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.result-copy:hover {
    background: rgba(74, 222, 128, 0.1);
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.3);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: var(--font-3xl);
    font-weight: var(--font-bold);
    margin-bottom: 15px;
    color: var(--text-primary-color);
}

.section-description {
    font-size: var(--font-lg);
    color: var(--text-secondary-color);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(74, 222, 128, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: var(--font-xl);
    font-weight: var(--font-semibold);
    margin-bottom: 15px;
    color: var(--text-primary-color);
}

.feature-card p {
    font-size: var(--font-sm);
    color: var(--text-secondary-color);
    line-height: 1.6;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
}

.faq-header {
    text-align: center;
    margin-bottom: 60px;
}

.faq-header h2 {
    font-size: var(--font-3xl);
    font-weight: var(--font-bold);
    margin-bottom: 15px;
    color: var(--text-primary-color);
}

.faq-header p {
    font-size: var(--font-lg);
    color: var(--text-secondary-color);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-question h3 {
    font-size: var(--font-lg);
    font-weight: var(--font-medium);
    color: var(--text-primary-color);
    margin: 0;
}

.faq-toggle {
    font-size: var(--font-xl);
    font-weight: var(--font-bold);
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 25px 25px;
    font-size: var(--font-sm);
    color: var(--text-secondary-color);
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .back-button {
        top: 20px;
        left: 20px;
        padding: 10px 16px;
        font-size: 13px;
    }

    .page-header {
        padding: 100px 0 40px;
    }

    .page-header h1 {
        font-size: var(--font-3xl);
    }

    .center-header {
        flex-direction: column;
        gap: 8px;
    }

    .emoji-visible {
        font-size: 2rem;
        margin-right: 0;
    }

    .utm-parameters-grid {
        grid-template-columns: 1fr;
    }

    .url-controls {
        flex-direction: column;
    }

    .bulk-controls {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .templates-grid {
        grid-template-columns: 1fr;
    }

    .analytics-grid {
        grid-template-columns: 1fr;
    }

    .card {
        border-radius: 12px;
    }

    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .tool-icon {
        align-self: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .card {
        padding: 20px !important;
    }

    .page-header h1 {
        font-size: var(--font-2xl);
    }

    .breadcrumb {
        flex-wrap: wrap;
        justify-content: center;
    }

    .url-suggestions {
        justify-content: center;
    }

    .parameter-examples {
        justify-content: center;
    }
}

/* Animation classes */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.slide-up {
    transform: translateY(20px);
    opacity: 0;
    animation: slideUp 0.5s ease forwards;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Validation states */
.valid {
    border-color: var(--utm-valid) !important;
}

.invalid {
    border-color: var(--utm-required) !important;
}

.warning {
    border-color: var(--utm-warning) !important;
}

/* Message system */
.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: none;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.message.success {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.3);
    color: #4ade80;
}

.message.error {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: #f87171;
}

.message.info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #3b82f6;
}

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

/* Bulk URL items */
.bulk-url-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.bulk-url-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

.bulk-url-content {
    flex: 1;
    min-width: 0;
}

.bulk-url-campaign {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.bulk-url-link {
    color: var(--text-secondary);
    font-size: 0.85rem;
    word-break: break-all;
    font-family: 'Courier New', monospace;
}

.remove-bulk-item {
    padding: 0.5rem;
    border: none;
    background: rgba(248, 113, 113, 0.1);
    color: #f87171;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-bulk-item:hover {
    background: rgba(248, 113, 113, 0.2);
    transform: scale(1.05);
}

.remove-bulk-item:active {
    transform: scale(0.95);
}

/* Real-time Preview */
.preview-card {
    margin-bottom: 2rem;
}

.preview-content {
    padding: 1.5rem;
}

.preview-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.url-preview {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-color);
    word-break: break-all;
    min-height: 60px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.url-preview.has-url {
    border-color: var(--primary-color);
    background: rgba(74, 222, 128, 0.05);
    color: var(--primary-color);
}