/* CSS Variables */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #7C3AED;
    --accent: #EC4899;
    --text: #1F2937;
    --text-light: #6B7280;
    --text-muted: #9CA3AF;
    --bg: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-dark: #F3F4F6;
    --border: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --max-width: 1200px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
}

.logo:hover {
    color: var(--text);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a.active {
    color: var(--primary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
    color: white;
}

.btn-secondary {
    background: var(--bg-dark);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--text);
}

.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn .icon {
    width: 20px;
    height: 20px;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    top: -200px;
    right: -200px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 100%);
    bottom: -100px;
    left: -100px;
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-badge {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.coming-soon {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.coming-soon-content {
    max-width: 500px;
    margin: 0 auto;
    color: var(--text-light);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.hero-badges {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.badge {
    padding: 6px 14px;
    background: var(--bg-dark);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-light);
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #4F46E5 0%, #7C3AED 50%, #1a1a2e 50%, #16213e 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    position: relative;
    overflow: hidden;
}

.waveform-demo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.wave-bar {
    width: 16px;
    background: white;
    border-radius: 8px;
    animation: wave 1.2s ease-in-out infinite;
}

.waveform-demo .wave-bar:nth-child(1) { height: 60px; animation-delay: 0s; }
.waveform-demo .wave-bar:nth-child(2) { height: 90px; animation-delay: 0.1s; }
.waveform-demo .wave-bar:nth-child(3) { height: 120px; animation-delay: 0.2s; }
.waveform-demo .wave-bar:nth-child(4) { height: 150px; animation-delay: 0.3s; }
.waveform-demo .wave-bar:nth-child(5) { height: 120px; animation-delay: 0.4s; }
.waveform-demo .wave-bar:nth-child(6) { height: 90px; animation-delay: 0.5s; }
.waveform-demo .wave-bar:nth-child(7) { height: 60px; animation-delay: 0.6s; }

.waveform-demo.secondary .wave-bar {
    background: var(--accent);
}

.waveform-demo.secondary .wave-bar:nth-child(1) { height: 50px; }
.waveform-demo.secondary .wave-bar:nth-child(2) { height: 75px; }
.waveform-demo.secondary .wave-bar:nth-child(3) { height: 100px; }
.waveform-demo.secondary .wave-bar:nth-child(4) { height: 125px; }
.waveform-demo.secondary .wave-bar:nth-child(5) { height: 100px; }
.waveform-demo.secondary .wave-bar:nth-child(6) { height: 75px; }
.waveform-demo.secondary .wave-bar:nth-child(7) { height: 50px; }

@keyframes wave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.8); }
}

.separator-line {
    width: 120px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 1px;
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.step {
    text-align: center;
    max-width: 280px;
}

.step-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-light);
}

.step-arrow {
    font-size: 2rem;
    color: var(--border);
    font-weight: 300;
}

/* Use Cases */
.use-cases {
    padding: 100px 0;
    background: var(--bg-light);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.use-case {
    background: white;
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.use-case h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.use-case p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.cta .btn-primary:hover {
    background: var(--bg-light);
    color: var(--primary-dark);
}

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

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    color: var(--text-muted);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: white;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-col a:hover {
    opacity: 1;
    color: white;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Page Header */
.page-header {
    padding: 120px 0 60px;
    background: var(--bg-light);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-header p {
    color: var(--text-light);
}

/* Support Section */
.support-section {
    padding: 60px 0 100px;
}

.support-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 60px;
}

.support-nav {
    position: sticky;
    top: 100px;
}

.support-nav-item {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--text);
    font-weight: 500;
    margin-bottom: 8px;
}

.support-nav-item:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.support-nav-item.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.support-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 24px;
    padding-top: 20px;
}

.support-block {
    margin-bottom: 60px;
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
}

.faq-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s;
    flex-shrink: 0;
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-light);
}

/* Troubleshooting */
.troubleshooting-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.troubleshooting-item {
    background: white;
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.troubleshooting-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.troubleshooting-item ul {
    margin-left: 20px;
    color: var(--text-light);
}

.troubleshooting-item li {
    margin-bottom: 8px;
}

/* Contact */
.contact-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.contact-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.contact-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.contact-card a {
    font-weight: 600;
}

.response-time {
    background: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
}

/* Legal Content */
.legal-content {
    padding: 60px 0 100px;
}

.legal-document {
    max-width: 800px;
    margin: 0 auto;
}

.legal-intro {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.legal-document h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 40px 0 20px;
}

.legal-document p {
    margin-bottom: 16px;
    color: var(--text-light);
}

.legal-document ul {
    margin: 20px 0;
    padding-left: 24px;
    color: var(--text-light);
}

.legal-document li {
    margin-bottom: 12px;
}

.legal-document strong {
    color: var(--text);
}

.legal-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    text-align: center;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-badges {
        justify-content: center;
    }

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

    .steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .contact-options {
        grid-template-columns: 1fr;
    }

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

    .support-nav {
        position: static;
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding-bottom: 12px;
    }

    .support-nav-item {
        white-space: nowrap;
        margin-bottom: 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .cta h2 {
        font-size: 1.75rem;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 16px;
}

.lang-switcher a {
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    background: var(--bg-dark);
    transition: all 0.2s;
}

.lang-switcher a:hover {
    color: var(--text);
    background: var(--border);
}

.lang-switcher a.active {
    color: white;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}