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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-lighter: #e2e8f0;
    --white: #ffffff;
    --success: #22c55e;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--dark);
    border: 1px solid var(--gray-lighter);
}

.btn-outline:hover {
    background: var(--gray-lighter);
}

.btn-ghost {
    background: transparent;
    color: var(--gray);
}

.btn-ghost:hover {
    color: var(--dark);
    background: var(--gray-lighter);
}

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

.btn-white:hover {
    background: var(--gray-lighter);
    transform: translateY(-1px);
}

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

.btn-block {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--gray-lighter);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 24px;
    font-weight: 800;
}

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

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

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

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

.nav-links a:not(.btn) {
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:not(.btn):hover {
    color: var(--dark);
}

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

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

/* Hero */
.hero {
    position: relative;
    padding: 140px 0 80px;
    overflow: hidden;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

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

.hero-description {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--dark);
}

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

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-lighter);
}

.hero-visual {
    position: relative;
}

.hero-mockup {
    background: var(--dark);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dark-light);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

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

.mockup-dots span:nth-child(1) { background: #ef4444; }
.mockup-dots span:nth-child(2) { background: #f59e0b; }
.mockup-dots span:nth-child(3) { background: #22c55e; }

.mockup-title {
    font-size: 13px;
    color: var(--gray-light);
}

.mockup-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.push-preview {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--dark-light);
    border-radius: var(--radius);
    animation: slideIn 0.5s ease;
}

.push-preview:nth-child(2) {
    animation-delay: 0.2s;
}

.push-preview:nth-child(3) {
    animation-delay: 0.4s;
}

.push-icon {
    font-size: 24px;
}

.push-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.push-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
}

.push-body {
    font-size: 12px;
    color: var(--gray-light);
}

.push-preview.generating {
    opacity: 0.7;
}

.typing::after {
    content: '|';
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--gradient);
    opacity: 0.05;
    filter: blur(100px);
    z-index: -1;
}

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

.section-badge {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: var(--gray);
}

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

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

.feature-card {
    padding: 32px;
    background: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: var(--radius);
    font-size: 28px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray);
    font-size: 15px;
}

/* How it Works */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8fafc 0%, var(--white) 100%);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 24px;
}

.step {
    flex: 1;
    max-width: 300px;
    text-align: center;
}

.step-number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 24px;
}

.step-content h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--gray);
    font-size: 15px;
}

.step-connector {
    width: 100px;
    height: 2px;
    background: var(--gray-lighter);
    margin-top: 32px;
}

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

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 40px 32px;
    background: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-xl);
    position: relative;
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow-xl);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: var(--gradient);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
}

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

.pricing-header h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray);
}

.amount {
    font-size: 48px;
    font-weight: 800;
}

.period {
    font-size: 16px;
    color: var(--gray);
}

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

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-lighter);
    font-size: 15px;
}

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

.check {
    color: var(--success);
    font-weight: 600;
}

/* FAQ */
.faq {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8fafc 0%, var(--white) 100%);
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

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

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    text-align: left;
    color: var(--dark);
}

.faq-question svg {
    transition: transform 0.3s;
    color: var(--gray);
}

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

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

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--gray);
    line-height: 1.7;
}

/* CTA */
.cta {
    padding: 100px 0;
    background: var(--gradient);
}

.cta-content {
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

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

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

.footer-brand p {
    color: var(--gray-light);
    margin-top: 16px;
    max-width: 300px;
}

.footer-brand .logo-text {
    color: var(--white);
}

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

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--gray-light);
}

.footer-column a {
    display: block;
    color: var(--white);
    text-decoration: none;
    padding: 8px 0;
    font-size: 15px;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--dark-light);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 44px;
    }

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

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

    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0;
    }
}

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

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

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

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

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

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }

    .section-title {
        font-size: 32px;
    }

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

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

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

    .cta-content h2 {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

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