/* 
 * Winpact Design System
 * Modern SaaS UI Framework
 * Colors: Emerald Green (#10B981), Slate Gray (#64748B), Dark Slate (#1E293B)
 */

:root {
    --primary: #10B981;
    --primary-dark: #059669;
    --primary-light: #ecfdf5;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --bg-white: #ffffff;
    --bg-soft: #f8fafc;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3 {
    color: #0f172a;
    font-weight: 800;
    letter-spacing: -0.025em;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    transition: all 0.3s ease;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
}

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

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.nav-logo {
    height: 36px;
    width: auto;
    border-radius: 8px;
}

.logo-text {
    font-weight: 800;
    font-size: 22px;
    color: #0f172a;
    letter-spacing: -0.03em;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    color: white;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.3);
}

/* Hero Section */
.hero-section {
    padding: 160px 0 100px;
    background: radial-gradient(circle at top right, #f0fdf4 0%, transparent 40%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 80px;
}

.hero-text h1 {
    font-size: 64px;
    line-height: 1.05;
    margin-bottom: 24px;
}

.subheadline {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 520px;
    line-height: 1.5;
}

.hero-btn {
    padding: 16px 36px;
    font-size: 17px;
}

.small-note {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Browser Mockup */
.browser-window {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    position: relative;
    padding-top: 36px;
    overflow: hidden;
    transition: transform 0.5s ease;
}

.browser-window::before {
    content: "";
    position: absolute;
    top: 14px;
    left: 18px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f56;
    box-shadow: 18px 0 0 #ffbd2e, 36px 0 0 #27c93f;
}

.hero-img, .popup-img {
    width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

/* Features Section */
.feature-section {
    padding: 120px 0;
}

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

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 100px;
}

.feature-section h2 {
    font-size: 42px;
    margin-bottom: 24px;
}

.feature-section p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.check-list {
    list-style: none;
}

.check-list li {
    margin-bottom: 16px;
    font-size: 17px;
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-main);
}

.icon-check {
    width: 24px;
    height: 24px;
    color: var(--primary);
    margin-right: 16px;
    background: var(--primary-light);
    border-radius: 50%;
    padding: 4px;
    flex-shrink: 0;
}

/* Steps Section */
.steps-section {
    padding: 120px 0;
    text-align: center;
}

.steps-section h2 {
    font-size: 42px;
    margin-bottom: 64px;
}

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

.step-card {
    padding: 40px 32px;
    background: white;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.step-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
}

.step-icon svg { width: 32px; height: 32px; }

.step-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
}

.step-card p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.6;
}

/* Footer */
footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 80px 0 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid #1e293b;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: white;
    font-weight: 800;
    font-size: 24px;
}

.footer-links a {
    color: #94a3b8;
    margin-left: 32px;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 40px;
    text-align: center;
    font-size: 14px;
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .hero-text h1 { font-size: 48px; }
    .hero-grid, .split-layout { gap: 40px; }
}

@media (max-width: 768px) {
    .hero-grid, .split-layout, .steps-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text h1 { font-size: 40px; }
    .hero-visual { order: -1; }
    .subheadline { margin: 0 auto 32px; }
    .check-list li { justify-content: center; }
    .footer-content { flex-direction: column; gap: 32px; }
    .footer-links a { margin: 0 16px; }
}