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

:root {
    --color-bg: #080B12;
    --color-surface: #0C1018;
    --color-surface-alt: #131828;
    --color-border: #1A2038;
    --color-border-light: #252E48;
    --color-text: #E8EAF0;
    --color-text-muted: #8892B0;
    --color-text-dim: #4D5575;
    --color-primary: #7C5CFC;
    --color-primary-hover: #6B4FE0;
    --color-primary-glow: rgba(124, 92, 252, 0.25);
    --color-accent: #A78BFA;
    --color-accent-blue: #4F8EFF;
    --color-white: #E8EAF0;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

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

img {
    max-width: 100%;
    display: block;
}

/* ===== Layout ===== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    color: #ffffff;
    box-shadow: 0 0 20px var(--color-primary-glow);
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #9578E8, #6B4FE0, #4080EE);
    color: #ffffff;
    box-shadow: 0 0 30px var(--color-primary-glow);
    transform: translateY(-1px);
}

.btn-outline {
    background: linear-gradient(135deg, #1A2038, #131828);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn-outline:hover {
    background: linear-gradient(135deg, #232B44, #1A2238);
    color: var(--color-white);
    border-color: #3A4668;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(8, 11, 18, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
}

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

.nav-logo {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo:hover {
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.nav-cta {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-white);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== App Mockup ===== */
.app-mockup {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 60px rgba(124, 92, 252, 0.15);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border);
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup-dot.red { background: #ef4444; }
.mockup-dot.yellow { background: #eab308; }
.mockup-dot.green { background: #22c55e; }

.mockup-title {
    margin-left: auto;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.mockup-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 16px;
}

.mockup-slot {
    position: relative;
    padding: 18px 14px;
    border-radius: 14px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition);
    overflow: hidden;
}

.mockup-slot.empty {
    background: linear-gradient(135deg, #1A2038, #131828);
    border: 1px solid var(--color-border-light);
    color: var(--color-text-muted);
}

.mockup-slot.filled {
    background: var(--slot-color, var(--color-primary));
    color: #ffffff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.mockup-slot.recording {
    animation: pulse-recording 1.5s ease-in-out infinite;
}

.mockup-slot.playing .mockup-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.6);
    animation: progress-bar 2s linear infinite;
}

@keyframes pulse-recording {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes progress-bar {
    0% { width: 0%; }
    100% { width: 100%; }
}

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

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

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: #3A4668;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 92, 252, 0.12);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    color: var(--color-accent);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

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

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    flex: 1;
    text-align: center;
    padding: 0 24px;
}

.step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 800;
    border-radius: 50%;
    margin: 0 auto 20px;
    box-shadow: 0 0 24px var(--color-primary-glow);
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--color-border);
    margin-top: 28px;
    flex-shrink: 0;
}

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

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.use-case-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: all var(--transition);
}

.use-case-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.use-case-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.use-case-icon svg {
    width: 28px;
    height: 28px;
}

.use-case-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 8px;
}

.use-case-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ===== Testimonials ===== */
.testimonials {
    padding: 100px 0;
    background: var(--color-surface);
}

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

.testimonial-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: all var(--transition);
}

.testimonial-card:hover {
    border-color: var(--color-primary);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: #eab308;
}

.testimonial-stars svg {
    width: 18px;
    height: 18px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 50%;
}

.testimonial-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-white);
}

.testimonial-role {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ===== Pricing ===== */
.pricing {
    padding: 100px 0;
}

.pricing-card {
    position: relative;
    max-width: 440px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 2px solid #7C5CFC;
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    text-align: center;
    box-shadow: 0 0 50px var(--color-primary-glow);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.pricing-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-muted);
    margin-top: 8px;
}

.pricing-amount {
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
}

.pricing-period {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
    display: block;
    text-align: center;
}

.pricing-description {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
    line-height: 1.6;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 36px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

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

.pricing-features svg {
    width: 18px;
    height: 18px;
    color: #22c55e;
    flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq {
    padding: 100px 0;
    background: var(--color-surface);
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

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

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    background: none;
    border: none;
    color: var(--color-white);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: color var(--transition);
    gap: 16px;
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-bottom: 20px;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--color-accent);
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* ===== Download CTA ===== */
.download {
    padding: 100px 0;
}

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

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.download-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 36px;
}

.download-requirements {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Prerequisites ===== */
.prerequisites {
    padding: 80px 0;
    background: var(--color-surface);
}

.prereqs-cards {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.prereq-link {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 28px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    transition: all var(--transition);
}

.prereq-link:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    color: var(--color-white);
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.prereq-link svg {
    width: 22px;
    height: 22px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.prereq-link span {
    font-weight: 400;
    color: var(--color-text-muted);
    margin-left: 4px;
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo:hover {
    background: linear-gradient(135deg, #A78BFA, #7C5CFC, #4F8EFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 8px;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Scroll Animations ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.75rem;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(8, 11, 18, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 28px;
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

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

    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .hero-title {
        font-size: 2.25rem;
    }

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

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

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

    .steps {
        flex-direction: column;
        align-items: center;
        gap: 32px;
    }

    .step-connector {
        width: 2px;
        height: 32px;
        margin: 0;
    }

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

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

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

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.85rem;
    }

    .pricing-card {
        padding: 36px 24px;
    }

    .pricing-amount {
        font-size: 3rem;
    }

    .download-title {
        font-size: 1.85rem;
    }

    .prereqs-cards {
        flex-direction: column;
        align-items: stretch;
    }
}