/* ===== CSS Variables ===== */
:root {
    /* Pastel Color Palette */
    --primary-color: #9BB5FF;        /* Soft Blue */
    --primary-dark: #7A9BF5;
    --primary-light: #BBCDFF;
    --secondary-color: #FFB5E8;      /* Soft Pink */
    --accent-color: #B5FFEF;         /* Mint Green */
    --warning-color: #FFE5B5;        /* Soft Peach */
    --success-color: #C7FFB5;        /* Soft Lime */

    /* Neutrals */
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-light: #718096;
    --background: #FDFEFF;
    --surface: #FFFFFF;
    --surface-alt: #F7F9FC;
    --border-color: #E2E8F0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #9BB5FF 0%, #FFB5E8 100%);
    --gradient-secondary: linear-gradient(135deg, #B5FFEF 0%, #C7FFB5 100%);
    --gradient-soft: linear-gradient(135deg, #F7F9FC 0%, #EDF2F7 100%);

    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04), 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.05), 0 4px 6px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.05), 0 10px 10px rgba(0, 0, 0, 0.02);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-primary);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.btn-nav {
    background: var(--gradient-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 2px 0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    background: var(--gradient-soft);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-light);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* ===== Hero Stats ===== */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

.stat {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

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

/* ===== Features Section ===== */
.features {
    padding: var(--spacing-2xl) 0;
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

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

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== Use Cases Section ===== */
.use-cases {
    padding: var(--spacing-2xl) 0;
    background: var(--surface-alt);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.use-case-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.use-case-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.use-case-card ul {
    list-style: none;
}

.use-case-card li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.use-case-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===== Benefits Section ===== */
.benefits {
    padding: var(--spacing-2xl) 0;
    background: var(--surface);
}

.benefits-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.benefit-group {
    background: var(--surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.benefit-group h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.benefit-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.benefit-check {
    width: 24px;
    height: 24px;
    color: var(--success-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.benefit-item strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.benefit-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===== Demo Section ===== */
.demo {
    padding: var(--spacing-2xl) 0;
    background: var(--surface-alt);
}

.demo-placeholder {
    background: white;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-content {
    text-align: center;
    max-width: 500px;
}

.demo-icon {
    width: 80px;
    height: 80px;
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
}

.demo-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.demo-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ===== CTA Section ===== */
.cta {
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-primary);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: white;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.cta .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--surface);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-method svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.contact-method span {
    color: var(--text-secondary);
    font-weight: 500;
}

.contact-form-placeholder,
.form-placeholder-content {
    background: var(--surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
}

.form-placeholder-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.form-placeholder-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ===== Footer ===== */
.footer {
    background: var(--surface-alt);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-column h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

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

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    color: var(--text-light);
    font-size: 0.875rem;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    /* Navigation */
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-lg);
        transition: left 0.3s ease;
        box-shadow: var(--shadow-xl);
    }

    .nav-links.active {
        left: 0;
    }

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

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

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

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

    /* Hero */
    .hero {
        padding: calc(80px + var(--spacing-lg)) 0 var(--spacing-lg);
    }

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

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

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

    .hero-actions .btn {
        width: 100%;
        max-width: 250px;
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* Use Cases Grid */
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    /* Benefits */
    .benefits-wrapper {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    /* Spacing Adjustments */
    .section-header {
        margin-bottom: var(--spacing-lg);
    }

    .features,
    .use-cases,
    .benefits,
    .demo,
    .cta,
    .contact {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }