/* CSS Variables for Theming */
:root {
    /* Otlet Brand Colors - inspired by app design */
    --color-primary: #6B8B87;        /* Sage green for icons and accents - matches logo */
    --color-secondary: #4A5568;      /* Dark navy/slate from app - primary CTA color */
    --color-secondary-hover: #2D3748; /* Darker navy for hover states */
    --color-accent: #5A8A77;         /* Darker sage green for sage accents */
    
    /* Neutral colors */
    --color-black: #2D2D2D;          /* Softer black */
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f6f7;
    --color-gray-200: #e8eaed;
    --color-gray-300: #dadce0;
    --color-gray-400: #bdc1c6;
    --color-gray-500: #9aa0a6;
    --color-gray-600: #80868b;
    --color-gray-700: #5f6368;
    --color-gray-800: #3c4043;
    --color-gray-900: #202124;
    
    /* Typography */
    --font-sans: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 80px;
    --border-radius: 12px;           /* Rounded corners like the app */
    --border-radius-large: 16px;
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    
    /* Theme Variables - Light theme defaults */
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-gray-50);
    --text-primary: var(--color-gray-900);
    --text-secondary: var(--color-gray-700);
    --border-color: var(--color-gray-200);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #e8eaed;
    --border-color: #404040;
    --color-secondary: #ffffff;
    --color-secondary-hover: #e8eaed;
}

/* Dark theme CTA button override */
[data-theme="dark"] .cta-button {
    background-color: #4A5568;
    color: #ffffff;
    border-color: #4A5568;
}

[data-theme="dark"] .cta-button:hover {
    background-color: #2D3748;
    border-color: #2D3748;
}

/* Dark theme step numbers override */
[data-theme="dark"] .step-number {
    background-color: #4A5568;
    color: #ffffff;
}

/* Dark theme comparison table overrides */
[data-theme="dark"] .comparison-table th.otlet-col::after {
    background-color: #4A5568;
    color: #ffffff;
}

[data-theme="dark"] .comparison-table th:not(.otlet-col) {
    color: #6B8B87;
}

[data-theme="dark"] .feature-value:not(.otlet-cell) {
    color: #6B8B87;
}

[data-theme="dark"] .check-icon,
[data-theme="dark"] .cross-icon {
    stroke: #ffffff;
}

[data-theme="dark"] .warning-icon {
    color: #ffffff;
}

/* Keep social icons the same color in both modes */
[data-theme="dark"] .social-link {
    background-color: #2D3748;
    color: #ffffff;
}

/* Dark theme beta signup section override - keep same as light mode */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: var(--bg-primary);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    height: 60px;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    height: 100%;
    transition: opacity var(--transition-base);
}

.nav-logo a:hover {
    opacity: 0.8;
}

.logo {
    height: 36px;
    width: auto;
    display: block;
    vertical-align: middle;
}

/* Logo theme switching */
.logo.logo-dark {
    display: none !important;
}

.logo.logo-light {
    display: block !important;
}

[data-theme="dark"] .logo.logo-dark {
    display: block !important;
}

[data-theme="dark"] .logo.logo-light {
    display: none !important;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--text-primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--text-primary);
}

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

/* Remove any borders from nav links */
.nav-link {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
    text-decoration: none !important;
}

/* Remove focus styles that might add borders */
.nav-link:focus,
.nav-link:active,
.nav-link:visited {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

/* Keep focus outline for accessibility but only for keyboard navigation */
.nav-link:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 4px;
    border-radius: 4px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-base);
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: all var(--transition-base);
    position: relative;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -2px;
}

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

.theme-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.sun-icon,
.moon-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: center;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

/* Light theme - show moon icon (click for dark mode) */
.sun-icon {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(90deg);
}

.moon-icon {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg);
}

/* Dark theme - show sun icon (click for light mode) */
[data-theme="dark"] .sun-icon {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(90deg);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: var(--nav-height) 20px 0;
    background-color: var(--bg-primary);
    background-image: url('otlet%20light.png');
    background-size: 50%;
    background-position: right 5% center;
    background-repeat: no-repeat;
    position: relative;
    transition: background-color var(--transition-base);
}

/* Dark theme hero image */
[data-theme="dark"] .hero {
    background-image: url('otlet_dark.png') !important;
}

.hero-container {
    text-align: left;
    max-width: 500px;
    margin-left: 5%;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-primary);
}

/* Keep "Organises your files." on one line for larger screens */
@media (min-width: 900px) {
    .hero-title {
        font-size: clamp(2.2rem, 2.8vw, 2.5rem);
    }
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 2.5rem;
    background-color: var(--color-secondary);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--color-secondary);
    margin-top: 2rem;
}

.cta-button:hover {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-large);
}

.cta-icon {
    transition: transform var(--transition-base);
}

.cta-button:hover .cta-icon {
    transform: translateX(5px);
}

/* Animations */
.animate-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s ease forwards;
}

.animate-fade-in-delay {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s ease 0.2s forwards;
}

.animate-fade-in-delay-2 {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s ease 0.4s forwards;
}

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

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.comparison .section-title {
    margin-bottom: 1rem;
}

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

.coming-soon {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--color-gray-200);
}

.coming-soon-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-secondary);
}

.coming-soon-list {
    list-style: none;
    padding: 0;
}

.coming-soon-list li {
    padding: 0.5rem 0;
    color: var(--color-gray-600);
    font-size: 1rem;
}

.feature-card {
    background-color: var(--bg-primary);
    padding: 2.5rem;
    border-radius: var(--border-radius-large);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
    border-color: var(--color-primary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    color: var(--color-gray-600);
}

.feature-card:hover .feature-icon {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* How it works Section */
.how-it-works {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

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

.step-card {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

.bonus-tip {
    text-align: center;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    margin-top: 3rem;
}

.bonus-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.bonus-description {
    color: var(--color-gray-600);
    line-height: 1.8;
}

/* Pricing Section */
.pricing {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.pricing-card {
    max-width: 400px;
    margin: 0 auto 3rem;
    padding: 3rem;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-large);
    text-align: center;
    box-shadow: var(--shadow-large);
    border: 1px solid var(--border-color);
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.price-label {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.price-features {
    list-style: none;
    padding: 0;
}

.price-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.price-features li:last-child {
    border-bottom: none;
}

.pricing-info {
    max-width: 600px;
    margin: 0 auto 3rem;
    text-align: center;
}

.pricing-question {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.pricing-answer {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.coming-later-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.coming-later-list li {
    padding: 0.5rem 0;
    color: var(--color-gray-600);
}

.early-access {
    text-align: center;
    background-color: var(--color-gray-50);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-large);
    border: 2px solid var(--color-secondary);
    margin-top: 2rem;
}

.early-access-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-secondary);
}

.early-access-button {
    display: inline-block;
    padding: 1.25rem 2.5rem;
    background-color: var(--color-secondary);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--color-secondary);
}

.early-access-button:hover {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-large);
}

/* Beta Signup Section */
.beta-signup {
    padding: 5rem 0;
    background-color: #4A5568;
    color: #ffffff;
}

.beta-signup-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.beta-signup-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.beta-signup-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: var(--color-gray-300);
    line-height: 1.6;
}

.beta-form {
    max-width: 400px;
    margin: 0 auto 2rem;
}

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

.beta-form .form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-family: inherit;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.beta-form .form-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.beta-form .form-input:focus {
    outline: none;
    border-color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.beta-form .form-input:valid {
    border-color: rgba(40, 167, 69, 0.8);
}

.beta-form .form-label {
    display: none;
}

.beta-signup .beta-form .submit-button {
    width: 100%;
    background-color: #ffffff !important;
    color: #4A5568 !important;
    font-weight: 700;
    font-size: 1.125rem;
    padding: 1.25rem 2rem;
    border-radius: var(--border-radius);
    border: 2px solid #4A5568;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.beta-signup .beta-form .submit-button:hover:not(:disabled) {
    background-color: #4A5568 !important;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.beta-signup .beta-form .submit-button:hover:not(:disabled) span {
    color: #ffffff !important;
}

.beta-signup .beta-form .submit-button:disabled {
    opacity: 0.8;
    cursor: not-allowed;
    transform: none;
}

.beta-signup .beta-form .submit-button.success {
    background-color: #28a745 !important;
    color: #ffffff !important;
    border-color: #28a745;
}

.beta-signup .beta-form .submit-button.success span {
    color: #ffffff !important;
}

.beta-signup .beta-form .submit-button.error {
    background-color: #dc3545 !important;
    color: #ffffff !important;
    border-color: #dc3545;
}

.beta-signup .beta-form .submit-button.error span {
    color: #ffffff !important;
}

.beta-signup .beta-form .submit-button span {
    position: relative;
    z-index: 1;
    color: #4A5568 !important;
    font-weight: 700 !important;
}

.beta-privacy {
    font-size: 0.875rem;
    color: var(--color-gray-400);
    font-style: italic;
}

.form-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-error.visible {
    display: block;
}

.beta-form .form-error {
    color: rgba(255, 107, 107, 0.9);
    background-color: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    backdrop-filter: blur(10px);
}

/* Accessibility Focus Styles */
.hamburger:focus,
.hamburger:focus-visible {
    outline: 1px solid var(--color-secondary);
    outline-offset: 1px;
    border-radius: 4px;
}

/* Remove focus outline on touch devices but keep for keyboard users */
@media (hover: none) and (pointer: coarse) {
    .hamburger:focus:not(:focus-visible) {
        outline: none;
    }
}

.nav-link:focus,
.nav-link:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
    border-radius: 4px;
}

.cta-button:focus,
.cta-button:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.beta-signup .beta-form .submit-button:focus,
.beta-signup .beta-form .submit-button:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.form-input:focus {
    border-color: var(--color-secondary) !important;
    box-shadow: 0 0 0 2px rgba(107, 139, 135, 0.2);
}

.beta-form .form-input:focus {
    border-color: var(--color-white) !important;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

.feature-card:focus,
.feature-card:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--border-radius-large);
}

.social-link:focus,
.social-link:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* FAQ Section */
.faq {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.faq-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(100, 100, 100, 0.2);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.faq-answer {
    color: var(--text-secondary);
    line-height: 1.8;
}

.faq-contact {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background-color: #4A5568;
    border-radius: var(--border-radius-large);
}

.faq-contact-text {
    font-size: 1.125rem;
    color: #ffffff;
}

.faq-contact-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

.faq-contact-link:hover {
    color: #e8eaed;
}

.contact-form-trigger {
    background: none;
    border: none;
    color: #ffffff;
    text-decoration: underline;
    font-weight: 600;
    font-size: inherit;
    cursor: pointer;
    transition: color var(--transition-base);
}

.contact-form-trigger:hover {
    color: #e8eaed;
}

/* Contact Form Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1010;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-large);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-base);
}

.modal-close:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.contact-form {
    padding: 1.5rem;
}

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

.contact-form .form-label {
    display: block !important;
    position: static !important;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 0.75rem;
    top: auto !important;
    left: auto !important;
    transform: none !important;
    transition: none !important;
    pointer-events: auto !important;
}

.contact-form .form-input,
.contact-form .form-textarea {
    width: 100%;
    padding: 0.75rem !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius) !important;
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-base), box-shadow var(--transition-base) !important;
    box-sizing: border-box;
    border-bottom: 1px solid var(--border-color) !important;
}

.contact-form .form-input:focus,
.contact-form .form-textarea:focus {
    outline: none !important;
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(107, 139, 135, 0.1) !important;
}

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

.contact-form .form-error {
    display: none;
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.contact-form .form-error[style*="block"] {
    display: block;
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn-secondary {
    padding: 0.75rem 1.5rem;
    background-color: #6B6B6B;
    border: none;
    color: white;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-secondary:hover {
    background-color: #5A5A5A;
    color: white;
}

.btn-primary {
    padding: 0.75rem 1.5rem;
    background-color: var(--color-primary);
    border: none;
    color: white;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    background-color: #5a7875;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.policy-contact-btn {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.policy-contact-btn:hover {
    background-color: #5a7875;
}

/* Dark mode modal improvements */
[data-theme="dark"] .modal-content {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .contact-form .form-input,
[data-theme="dark"] .contact-form .form-textarea {
    background-color: var(--bg-secondary) !important;
    border-color: #404040 !important;
}

[data-theme="dark"] .contact-form .form-input:focus,
[data-theme="dark"] .contact-form .form-textarea:focus {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(107, 139, 135, 0.2) !important;
}

/* Comparison Table Section */
.comparison {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.comparison-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    margin-top: 0.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-table-container {
    overflow-x: auto;
    margin-bottom: 3rem;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-large);
    border: 1px solid var(--border-color);
    padding-top: 20px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.comparison-table th {
    background-color: var(--bg-primary);
    padding: 1.5rem 1rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.comparison-table th.feature-column {
    text-align: left;
    min-width: 180px;
    color: var(--color-gray-600);
    font-weight: 500;
}

.comparison-table th.tool-column {
    text-align: center;
    min-width: 120px;
}

.comparison-table th.otlet-col {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    position: relative;
}

.comparison-table th.otlet-col::after {
    content: "Best Choice";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.comparison-table td {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    text-align: center;
    background-color: var(--bg-primary);
}

.comparison-table tr:nth-child(even) td {
    background-color: var(--bg-secondary);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.feature-label {
    text-align: left !important;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.otlet-cell {
    font-weight: 600;
    color: var(--color-secondary);
}

.feature-value {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.95rem;
}

.pricing-highlight {
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 1rem;
}

.check-icon {
    color: var(--color-primary);
    width: 20px;
    height: 20px;
}

.cross-icon {
    color: var(--color-gray-400);
    width: 20px;
    height: 20px;
}

.warning-icon {
    color: #f59e0b;
    margin-right: 0.5rem;
}

.why-choose-section {
    padding: 5rem 0;
    background-color: var(--bg-primary);
}

.why-choose {
    background-color: var(--bg-secondary);
    padding: 3rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-color);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.why-choose-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.why-choose-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.why-choose-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-disclaimer {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 1rem;
    text-align: center;
}

.platform-note {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    font-weight: 500;
    margin-top: 0.5rem;
    text-align: center;
}

/* Philosophy Section */
.philosophy {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

/* Paul Otlet Note Section */
.otlet-note {
    padding: 4rem 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.otlet-note-content {
    max-width: 650px;
    margin: 0 auto;
    text-align: center;
}

.otlet-note-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.otlet-note-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
    text-wrap: balance;
    orphans: 2;
    widows: 2;
}

.otlet-note-text:last-of-type {
    margin-bottom: 2rem;
}

.otlet-note-divider {
    font-size: 1.5rem;
    color: var(--color-gray-400);
    text-align: center;
}

.otlet-link {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.otlet-link:hover {
    color: var(--color-secondary-hover);
    border-bottom-color: var(--color-secondary-hover);
}

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

.philosophy-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.philosophy-text:last-child {
    margin-bottom: 0;
}

/* Privacy Policy Page */
.privacy-hero {
    padding: calc(var(--nav-height) + 2rem) 0 3rem;
    background-color: var(--bg-primary);
    text-align: center;
}

.privacy-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.privacy-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.privacy-commitment {
    padding: 3rem 0;
    background-color: var(--bg-primary);
}

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

.commitment-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.commitment-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.commitment-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.commitment-list li {
    padding: 0.75rem 0;
    font-size: 1.125rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.commitment-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--text-primary);
    font-weight: bold;
}

.privacy-policy {
    padding: 3rem 0;
    background-color: var(--bg-primary);
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
}

.policy-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.policy-updated {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.policy-section {
    margin-bottom: 3rem;
}

.policy-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.policy-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
    color: var(--text-primary);
}

.policy-section p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.policy-section ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.policy-section li {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.policy-section a {
    color: var(--text-primary);
    text-decoration: underline;
    transition: opacity 0.3s ease;
}

.policy-section a:hover {
    opacity: 0.8;
}

.not-collect-list {
    list-style: none;
    padding-left: 0;
}

.not-collect-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
    color: var(--text-secondary);
}

.not-collect-list li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: var(--text-secondary);
    font-weight: bold;
}

.policy-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.policy-footer p {
    font-style: italic;
    color: var(--text-secondary);
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: var(--color-gray-100);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-input {
    width: 100%;
    padding: 1rem 0;
    font-size: 1rem;
    border: none;
    border-bottom: 2px solid var(--border-color);
    background-color: transparent;
    transition: border-color var(--transition-base);
    font-family: inherit;
    color: var(--text-primary);
}

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

.form-label {
    position: absolute;
    left: 0;
    top: 1rem;
    font-size: 1rem;
    color: var(--text-secondary);
    pointer-events: none;
    transition: all var(--transition-base);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -0.75rem;
    font-size: 0.875rem;
    color: var(--color-black);
}

.submit-button {
    width: 100%;
    padding: 1rem 2rem;
    background-color: var(--color-black);
    color: var(--color-white);
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.submit-button span {
    position: relative;
    z-index: 1;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--color-gray-800);
    transition: left var(--transition-base);
}

.submit-button:hover::before {
    left: 0;
}

/* Footer */
.footer {
    padding: 3rem 0 1rem;
    background-color: #4A5568;
    color: #ffffff;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.footer-tagline {
    color: #e8eaed;
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-secondary-hover);
    border-radius: 50%;
    color: var(--color-white);
    transition: all var(--transition-base);
}

.social-link:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #2D3748;
    color: #e8eaed;
    font-size: 0.875rem;
}

.privacy-link {
    color: #e8eaed;
    text-decoration: underline;
    transition: color var(--transition-base);
}

.privacy-link:hover {
    color: #ffffff;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero {
        background-size: 45%;
        background-position: right 5% center;
        justify-content: flex-start;
    }
    
    .hero-container {
        text-align: left;
        margin-left: 5%;
        max-width: 380px;
        padding: 1rem;
    }
}

/* Tablet viewport - make image larger */
@media (max-width: 1024px) {
    .hero {
        background-size: 40%;
        background-position: right 5% center;
    }
}

/* Mobile viewport - hide image */
@media (max-width: 768px) {
    .hero {
        background-image: none !important;
        background-color: var(--bg-primary);
        justify-content: center;
    }
    
    [data-theme="dark"] .hero {
        background-image: none !important;
    }
    
    .hero-container {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
        max-width: 100%;
        background-color: transparent;
        padding: 1rem;
    }
    
    .hamburger {
        display: flex;
        padding: 10px;
        min-width: 44px;
        min-height: 44px;
        border: none;
        background: none;
        cursor: pointer;
        align-items: center;
        justify-content: center;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: var(--nav-height);
        bottom: 0;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        padding: 0.5rem 0 2rem 0;
        overflow-y: scroll;
        z-index: 999;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 0;
        display: flex;
        justify-content: center;
        width: 100%;
    }
    
    .theme-toggle {
        padding: 0.75rem 2rem;
        min-height: 44px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        padding: 0.75rem 2rem;
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-primary);
        text-decoration: none;
        border-bottom: 1px solid var(--border-color);
        transition: all var(--transition-base);
        min-height: 44px;
    }
    
    .nav-link:hover,
    .nav-link:focus {
        background-color: var(--bg-secondary);
        color: var(--text-primary);
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: 0.85rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .unique-features {
        grid-template-columns: 1fr;
    }
}