/* ===========================
   CSS Variables & Reset
   =========================== */

:root {
    --primary-purple: #673AB7;
    --primary-purple-dark: #5E35B1;
    --primary-purple-light: #7C4DFF;
    --google-green: #34A853;
    --google-green-dark: #2D9348;
    --google-blue: #4285F4;
    --google-red: #EA4335;
    --google-yellow: #FBBC04;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-white: #ffffff;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #fafbfc;
    --border-color: #dadce0;
    --border-light: #e8eaed;
    --shadow-sm: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-md: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 2px 6px 2px rgba(60, 64, 67, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: linear-gradient(135deg, #f0f4ff 0%, #fef3ff 50%, #f0fff4 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Subtle dot pattern overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(103, 58, 183, 0.03) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(52, 168, 83, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Decorative background shapes */
html::before {
    content: '';
    position: fixed;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(103, 58, 183, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

html::after {
    content: '';
    position: fixed;
    bottom: -300px;
    left: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(52, 168, 83, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

/* ===========================
   Navigation
   =========================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-cta {
    padding: 0.5rem 1.5rem;
    background: var(--primary-purple);
    color: var(--text-white) !important;
    border-radius: 24px;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--primary-purple-dark);
    box-shadow: var(--shadow-sm);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    background: transparent;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.highlight {
    display: inline-block;
    background: var(--google-green);
    color: var(--text-white);
    padding: 0.2rem 1.2rem;
    border-radius: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 24px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
    letter-spacing: 0.25px;
}

.btn-primary {
    background: var(--primary-purple);
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-purple-dark);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-purple);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-light);
    border-color: var(--primary-purple);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

/* ===========================
   Sections
   =========================== */

section {
    padding: 6rem 2rem;
    background: transparent;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ===========================
   Features Section
   =========================== */

.features {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: -100px;
    right: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 77, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.2s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--text-white);
    transition: all 0.2s ease;
}

.feature-card:nth-child(1) .feature-icon {
    background: var(--google-red);
}

.feature-card:nth-child(2) .feature-icon {
    background: var(--google-blue);
}

.feature-card:nth-child(3) .feature-icon {
    background: var(--primary-purple);
}

.feature-card:nth-child(4) .feature-icon {
    background: var(--google-green);
}

.feature-card:nth-child(5) .feature-icon {
    background: var(--google-yellow);
}

.feature-card:nth-child(6) .feature-icon {
    background: var(--google-green);
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.875rem;
}

/* ===========================
   Screenshots Section
   =========================== */

.screenshots {
    background: transparent;
}

.screenshots-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.screenshot-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.screenshot-item:hover {
    box-shadow: var(--shadow-md);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

/* ===========================
   Testimonials Section
   =========================== */

.testimonials {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.testimonials::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: 15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(52, 168, 83, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.testimonials-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.testimonial-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.2s ease;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.rating {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.9375rem;
}

.testimonial-author {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===========================
   About Section
   =========================== */

.about {
    background: transparent;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-cta {
    margin-top: 3rem;
}

/* ===========================
   CTA Section
   =========================== */

.cta {
    background: var(--google-green);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--text-white);
    opacity: 0.95;
    margin-bottom: 2.5rem;
}

.cta-note {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-white);
    opacity: 0.9;
}

.cta .btn-primary {
    background: var(--bg-white);
    color: var(--google-green);
}

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

/* ===========================
   Footer
   =========================== */

.footer {
    background: var(--bg-light);
    padding: 3rem 2rem 1.5rem;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 1rem;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

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

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.875rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===========================
   Animations
   =========================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Remove heavy animations for clean Google Forms look */

/* ===========================
   Responsive Design
   =========================== */

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

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-white);
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-image img {
        max-width: 300px;
    }

    .section-title {
        font-size: 2rem;
    }

    .cta-title {
        font-size: 2rem;
    }

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

    .screenshots-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 1rem 3rem;
    }

    section {
        padding: 4rem 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

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

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

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

    .hero-stats {
        gap: 2rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

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

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

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

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

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

/* ===========================
   Accessibility
   =========================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

@media (prefers-contrast: high) {
    :root {
        --text-gray: #c0c0c0;
        --border-color: rgba(255, 255, 255, 0.3);
    }
}