/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Theme Colors */
    --primary-blue: #326fa8;
    --accent-pink: #d11f66;
    --dark-grey: #323b34;
    --light-grey: #f5f7fa;
    --white: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #e1e5eb;
    --card-bg: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --gradient-primary: linear-gradient(135deg, #326fa8 0%, #2a5c8f 100%);
    --gradient-accent: linear-gradient(135deg, #d11f66 0%, #b81a58 100%);
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 5rem 1.5rem;
    --container-max: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Theme */
body.dark-theme {
    --primary-blue: #4a8bc8;
    --accent-pink: #e52e71;
    --dark-grey: #2a2f2a;
    --light-grey: #1a1f1a;
    --white: #121612;
    --text-primary: #f0f0f0;
    --text-secondary: #b0b0b0;
    --border-color: #3a3f3a;
    --card-bg: #1e231e;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-primary);
    background-color: var(--light-grey);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p { margin-bottom: 1rem; }

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover { color: var(--accent-pink); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal);
    gap: 0.5rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

.btn-process {
    background: var(--gradient-accent);
    color: white;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-process:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

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

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-plus {
    color: var(--accent-pink);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-pink);
    transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-normal);
}

.theme-toggle:hover {
    background-color: rgba(var(--primary-blue), 0.1);
}

.theme-toggle .fa-sun { display: none; }
.dark-theme .theme-toggle .fa-moon { display: none; }
.dark-theme .theme-toggle .fa-sun { display: block; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 6rem 1.5rem;
    background: linear-gradient(135deg, rgba(50, 111, 168, 0.1) 0%, rgba(209, 31, 102, 0.05) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--accent-pink);
    position: relative;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

/* Tool Section */
.tool-section {
    padding: var(--section-padding);
    background-color: var(--white);
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.tool-container {
    max-width: 800px;
    margin: 0 auto;
}

.tool-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.tool-input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.input-with-icon {
    flex: 1;
    position: relative;
    min-width: 300px;
}

.input-with-icon i {
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.tool-input {
    width: 100%;
    padding: 1.2rem 1.2rem 1.2rem 3rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--card-bg);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.tool-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(50, 111, 168, 0.1);
}

.url-examples {
    background-color: rgba(50, 111, 168, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
}

.examples-title {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.examples-list {
    list-style: none;
    font-family: monospace;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.examples-list li {
    padding: 0.25rem 0;
    border-bottom: 1px dashed var(--border-color);
    cursor: pointer;
}

.examples-list li:hover {
    color: var(--primary-blue);
}

.examples-list li:last-child {
    border-bottom: none;
}

/* Result Container */
.result-container {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-top: 2rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.preview-container {
    position: relative;
    min-height: 300px;
    border-radius: 12px;
    overflow: hidden;
    background-color: rgba(50, 59, 52, 0.05);
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

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

.preview-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}

.thumbnail-preview {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 8px;
}

.thumbnail-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.info-item i {
    color: var(--primary-blue);
}

/* Error Container */
.error-container {
    background-color: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.error-message {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #d32f2f;
}

.error-message i {
    font-size: 1.5rem;
}

/* How It Works */
.how-it-works {
    padding: var(--section-padding);
    background-color: var(--light-grey);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--gradient-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.step-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

/* Features */
.features {
    padding: var(--section-padding);
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

/* FAQ */
.faq {
    padding: var(--section-padding);
    background-color: var(--light-grey);
}

.faq-container {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question:hover {
    background-color: rgba(50, 111, 168, 0.05);
}

.faq-question i {
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

/* Footer */
.footer {
    background-color: var(--dark-grey);
    color: white;
}

.footer-top {
    padding: 4rem 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background-color: var(--accent-pink);
    transform: translateY(-3px);
}

.footer-heading {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-pink);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-normal);
}

.footer-links a:hover {
    color: var(--accent-pink);
    padding-left: 5px;
}

.footer-bottom {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) !important;
}

/* Loading Animation */
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.hidden {
    display: none !important;
}

/* Page Specific */
.page-hero {
    padding: 8rem 1.5rem 4rem;
    text-align: center;
    background: var(--gradient-primary);
    color: white;
}

.page-hero h1 {
    color: white;
    margin-bottom: 0.5rem;
}

.page-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
}

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.about-list {
    list-style: none;
    margin: 1.5rem 0;
}

.about-list li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.about-list i {
    color: var(--accent-pink);
    margin-top: 0.25rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    background: var(--gradient-primary);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.stat-card h3 {
    color: white;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.values-section {
    margin-top: 4rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-5px);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

.team-section {
    margin-top: 4rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.team-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition-normal);
}

.team-card:hover {
    transform: translateY(-5px);
}

.team-avatar {
    font-size: 4rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.team-role {
    color: var(--accent-pink);
    font-weight: 500;
    margin-bottom: 1rem;
}

.team-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form-container {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-primary);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-top: 0.25rem;
}

.info-item h4 {
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.faq-preview ul {
    list-style: none;
    margin-top: 1rem;
}

.faq-preview li {
    margin-bottom: 0.75rem;
}

.faq-preview a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.faq-preview a:hover {
    color: var(--primary-blue);
}

.faq-preview i {
    color: var(--accent-pink);
}

.support-hours {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.hours-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.hours-item:last-child {
    border-bottom: none;
}

.form-success,
.form-error {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.form-success {
    background-color: rgba(76, 175, 80, 0.1);
    border: 2px solid rgba(76, 175, 80, 0.2);
    color: #2e7d32;
}

.form-error {
    background-color: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.2);
    color: #d32f2f;
}

/* Privacy & Disclaimer Pages */
.privacy-container,
.disclaimer-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 0;
}

.privacy-intro,
.disclaimer-warning {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 3rem;
    box-shadow: var(--shadow);
}

.disclaimer-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border: 2px solid rgba(255, 193, 7, 0.2);
}

.warning-icon {
    font-size: 3rem;
    color: #ff9800;
    margin-bottom: 1rem;
    text-align: center;
}

.privacy-section,
.disclaimer-section {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.privacy-section h2,
.disclaimer-section h2 {
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.privacy-section h3,
.disclaimer-section h3 {
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.privacy-section ul,
.disclaimer-section ul {
    margin: 1rem 0 1rem 2rem;
}

.privacy-section li,
.disclaimer-section li {
    margin-bottom: 0.5rem;
}

.acceptance-section {
    background-color: rgba(76, 175, 80, 0.1);
    border: 2px solid rgba(76, 175, 80, 0.2);
    border-radius: 15px;
    padding: 2rem;
    margin-top: 3rem;
}

.acceptance-box {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.acceptance-box i {
    color: #4caf50;
    margin-right: 0.5rem;
}

/* Animations */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1.1rem; }
    
    .mobile-menu-btn { display: block; }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .tool-input-group { flex-direction: column; }
    .input-with-icon { min-width: 100%; }
    .result-header { flex-direction: column; align-items: stretch; }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .tool-card,
    .result-container,
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .features-grid,
    .steps-container {
        grid-template-columns: 1fr;
    }
}