/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-500: #4F7EFF;
    --primary-400: #6B8DFF;
    --primary-300: #87A0FF;
    --primary-200: #A3B3FF;
    
    --orange-500: #F59E0B;
    --orange-400: #FB923C;
    
    --purple-500: #8B5CF6;
    --purple-400: #A78BFA;
    
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    
    --white: #FFFFFF;
    --black: #000000;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-400) 100%);
    --gradient-orange: linear-gradient(135deg, var(--orange-500) 0%, var(--orange-400) 100%);
    --gradient-purple: linear-gradient(135deg, var(--purple-500) 0%, var(--purple-400) 100%);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Container max width */
    --container-max-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Utility classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

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

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

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--primary-500);
    color: var(--primary-500);
}

.btn-outline {
    background: transparent;
    color: var(--primary-500);
    border-color: var(--primary-500);
}

.btn-outline:hover {
    background: var(--primary-500);
    color: var(--white);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-500);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.language-btn:hover {
    background: var(--gray-200);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 180px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color var(--transition-fast);
}

.lang-option:hover {
    background: var(--gray-50);
}

.lang-option:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    animation: slideInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gradient-purple);
    color: var(--white);
    border-radius: var(--radius-2xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-download {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
    justify-content: center;
    align-items: center;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-500);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 0.8s ease-out;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1f2937 0%, #111827 100%);
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: #374151;
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 30px;
    padding: var(--spacing-lg);
    overflow: hidden;
    position: relative;
}

.app-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-xl);
}

.recording-wave {
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 4px;
    height: 60px;
}

.wave-bar {
    width: 8px;
    background: var(--gradient-primary);
    border-radius: 4px;
    animation: waveAnimation 1.5s ease-in-out infinite;
}

.wave-bar:nth-child(1) { height: 20px; animation-delay: 0s; }
.wave-bar:nth-child(2) { height: 40px; animation-delay: 0.1s; }
.wave-bar:nth-child(3) { height: 60px; animation-delay: 0.2s; }
.wave-bar:nth-child(4) { height: 45px; animation-delay: 0.3s; }
.wave-bar:nth-child(5) { height: 30px; animation-delay: 0.4s; }
.wave-bar:nth-child(6) { height: 50px; animation-delay: 0.5s; }
.wave-bar:nth-child(7) { height: 25px; animation-delay: 0.6s; }

.transcript-preview {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    font-size: 0.875rem;
}

.speaker-line {
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.speaker {
    font-weight: 600;
    color: var(--primary-500);
}

.text {
    color: var(--gray-700);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-500);
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-2xl);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: var(--spacing-xl);
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.price-currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-600);
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--gray-900);
}

.price-period {
    font-size: 1rem;
    color: var(--gray-600);
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.plan-features li {
    padding: var(--spacing-sm) 0;
    color: var(--gray-700);
    position: relative;
    padding-left: var(--spacing-lg);
}

.plan-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 600;
}

.pricing-note {
    text-align: center;
    margin-top: var(--spacing-xl);
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.about-stat h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.about-stat p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    animation: float 3s ease-in-out infinite;
}


/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-column a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--primary-400);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-700);
}

.footer-social {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-social a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--primary-400);
}

/* Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes waveAnimation {
    0%, 100% { height: 20px; }
    50% { height: 60px; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--gray-200);
        z-index: 1000;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--gray-100);
        width: 100%;
        text-align: center;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .language-selector {
        margin-top: var(--spacing-md);
        width: 100%;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-download {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .download-btn img {
        height: 50px;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .download-btn img {
        height: 50px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container,
    .nav-container,
    .hero-container {
        padding: 0 var(--spacing-md);
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .phone-mockup {
        width: 220px;
        height: 440px;
        padding: 15px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }
}

/* Print styles */
@media print {
    .navbar,
    .hero-visual,
    .download {
        display: none;
    }
    
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000000;
        --gray-500: #000000;
        --gray-400: #333333;
    }
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

.btn:focus,
.nav-link:focus,
.lang-option:focus,
.language-btn:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* Screen reader only content */
.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;
}