/* ===================================
   CSS Variables
   =================================== */
:root {
    --primary-color: #FF0000;
    --primary-dark: #CC0000;
    --primary-light: #FF3333;
    --secondary-color: #1a1a1a;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --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);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 24px;
    color: var(--text-primary);
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

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

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

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: var(--secondary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
}

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

.btn-download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-download-small {
    font-size: 11px;
    font-weight: 400;
    opacity: 0.8;
}

.btn-download-large {
    font-size: 18px;
    font-weight: 600;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

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

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, #ff6b6b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-gradient {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 0, 0, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.phone-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 9/19;
    background: linear-gradient(145deg, #1a1a1a 0%, #2d2d2d 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(0, 0, 0, 0.15);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.app-preview {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--bg-secondary);
}

.time {
    font-size: 14px;
    font-weight: 600;
}

.preview-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    gap: 24px;
}

.waveform-animation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 80px;
}

.waveform-bar {
    width: 4px;
    background: var(--primary-color);
    border-radius: 2px;
    animation: wave 1.5s ease-in-out infinite;
}

.waveform-bar:nth-child(1) { animation-delay: 0s; }
.waveform-bar:nth-child(2) { animation-delay: 0.1s; }
.waveform-bar:nth-child(3) { animation-delay: 0.2s; }
.waveform-bar:nth-child(4) { animation-delay: 0.3s; }
.waveform-bar:nth-child(5) { animation-delay: 0.4s; }
.waveform-bar:nth-child(6) { animation-delay: 0.5s; }
.waveform-bar:nth-child(7) { animation-delay: 0.4s; }
.waveform-bar:nth-child(8) { animation-delay: 0.3s; }
.waveform-bar:nth-child(9) { animation-delay: 0.2s; }
.waveform-bar:nth-child(10) { animation-delay: 0.1s; }
.waveform-bar:nth-child(11) { animation-delay: 0s; }
.waveform-bar:nth-child(12) { animation-delay: 0.1s; }

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

.recording-time {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

.live-transcript {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Features Section
   =================================== */
.features {
    padding: 100px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 40px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.step {
    position: relative;
    text-align: center;
}

.step-number {
    display: inline-block;
    width: 80px;
    height: 80px;
    line-height: 80px;
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    background: white;
    border-radius: 50%;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
}

.step-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.step-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ===================================
   Use Cases Section
   =================================== */
.use-cases {
    padding: 100px 0;
    background: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.use-case-card {
    padding: 40px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, white 100%);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.use-case-emoji {
    font-size: 56px;
    margin-bottom: 20px;
}

.use-case-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.use-case-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Pricing Section
   =================================== */
.pricing {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: 48px 40px;
    background: white;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--primary-color);
    color: white;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 8px;
}

.price-currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
}

.price-amount {
    font-size: 56px;
    font-weight: 800;
    line-height: 1;
    margin: 0 4px;
}

.price-period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-secondary);
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    padding: 100px 0;
    background: white;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 32px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    gap: 20px;
}

.faq-question h3 {
    font-size: 20px;
    font-weight: 600;
}

.faq-icon {
    font-size: 24px;
    color: var(--primary-color);
    transition: var(--transition);
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-top: 20px;
}

.faq-answer p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ===================================
   Download Section
   =================================== */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #cc0000 100%);
}

.download-card {
    text-align: center;
    color: white;
}

.download-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.download-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.download-note {
    font-size: 14px;
    opacity: 0.8;
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: 80px 0 40px;
    background: var(--secondary-color);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 24px;
    color: white;
    margin-bottom: 16px;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

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

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

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

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .stat {
        text-align: center;
    }

    .section-title {
        font-size: 36px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .download-title {
        font-size: 36px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .features,
    .how-it-works,
    .use-cases,
    .pricing,
    .faq,
    .download {
        padding: 60px 0;
    }

    .feature-card,
    .use-case-card {
        padding: 28px;
    }
}