:root {
    --primary: #4F46E5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary: #0f172a;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --bg-white: #ffffff;
    --bg-slate: #f8fafc;
    --bg-indigo-light: #EEF2FF;
    --gradient-start: #4F46E5;
    --gradient-end: #8b5cf6;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--secondary);
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.text-primary {
    color: var(--primary);
}

.text-muted {
    color: var(--text-muted);
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mb-8 {
    margin-bottom: 4rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.23);
}

.btn-outline {
    background: white;
    border: 1px solid #e2e8f0;
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--bg-slate);
    border-color: #cbd5e1;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

/* Section Common */
.section {
    padding: 100px 0;
}

.bg-slate {
    background-color: var(--bg-slate);
}

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Hero Section */
.hero {
    padding-top: 160px;
    padding-bottom: 100px;
    background: radial-gradient(circle at top right, rgba(79, 70, 229, 0.1) 0%, transparent 40%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.25rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    line-height: 1.25;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-list {
    margin-bottom: 2.5rem;
}

.hero-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--text-main);
}

.hero-list svg {
    color: var(--primary);
    flex-shrink: 0;
}

.hero-image-wrapper img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(0, 0, 0, 0.05);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Check List Section (Target Audience, Pain Points) */
.check-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.check-list-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.check-list-item svg {
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.bg-danger-light {
    background-color: #FEF2F2;
}

.text-danger {
    color: #DC2626;
}

/* Features & Use Cases */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    padding: 2rem;
    border-radius: var(--radius-xl);
    background: white;
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

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

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.use-case-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.use-case-card .badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--bg-indigo-light);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

/* ROI Section */
.roi-section {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
}

.roi-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.roi-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.roi-result {
    text-align: center;
}

.result-box {
    background: white;
    color: var(--secondary);
    padding: 2rem;
    border-radius: var(--radius-xl);
    margin-top: 2rem;
}

.result-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin: 0.5rem 0;
}

/* FAQ */
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-lg);
    background: white;
    overflow: hidden;
}

.faq-item summary {
    padding: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary:after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
}

.faq-item[open] summary:after {
    content: '-';
}

.faq-item p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-muted);
    line-height: 1.8;
    border-top: 1px solid #f1f5f9;
    padding-top: 1rem;
}

/* CTA Footer */
.cta-section {
    text-align: center;
    background: var(--bg-indigo-light);
    padding: 80px 0;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background: white;
    border-top: 1px solid #e2e8f0;
    color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 968px) {

    .hero-grid,
    .card-grid,
    .roi-container {
        grid-template-columns: 1fr;
    }

    .hero {
        text-align: center;
        padding-top: 120px;
    }

    .hero-list {
        display: inline-block;
        text-align: left;
    }

    .roi-form {
        order: 2;
    }

    .roi-result {
        order: 1;
    }
}