:root {
    --ig-orange: #f09433;
    --ig-red: #e6683c;
    --ig-magenta: #dc2743;
    --ig-purple: #cc2366;
    --ig-blue: #bc1888;
    --bg-main: #ffffff;
    --bg-gray: #f8f9fa;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --border-color: #e9ecef;
    --btn-blue: #007bff;
    --btn-blue-hover: #0056b3;
    --shadow: 0 8px 30px rgba(0,0,0,0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body { background: var(--bg-main); color: var(--text-dark); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: 0.3s; }

/* Visual Nav */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); padding: 0 5%; height: 70px; display: flex; justify-content: space-between; align-items: center; }
.nav-brand { font-size: 24px; font-weight: 800; font-family: 'Comic Sans MS', cursive, sans-serif; letter-spacing: -1px; display: flex; align-items: center; gap: 8px; }
.nav-brand::before { content: ''; width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(45deg, var(--ig-orange), var(--ig-magenta), var(--ig-purple)); display: inline-block; }
.nav-links { display: flex; gap: 25px; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--text-dark); }
.nav-btn { background: var(--text-dark); color: white !important; padding: 8px 20px; border-radius: 20px; font-size: 14px; }
.nav-btn:hover { background: var(--btn-blue); }

/* Installation Process Hero */
.hero { display: flex; align-items: center; justify-content: space-between; padding: 60px 5%; min-height: 80vh; background: var(--bg-gray); position: relative; overflow: hidden; }
.hero-content { flex: 1; max-width: 550px; z-index: 2; }
.hero-tag { display: inline-block; padding: 5px 15px; background: rgba(220, 39, 67, 0.1); color: var(--ig-magenta); border-radius: 20px; font-size: 13px; font-weight: bold; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.hero h1 { font-size: 50px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; letter-spacing: -1px; }
.hero p { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; }
.btn-group { display: flex; gap: 15px; flex-wrap: wrap; }
.btn { padding: 15px 30px; border-radius: 30px; font-size: 15px; font-weight: 600; cursor: pointer; border: none; display: flex; align-items: center; gap: 8px; transition: 0.3s; }
.btn-primary { background: linear-gradient(45deg, var(--ig-orange), var(--ig-magenta)); color: white; box-shadow: 0 5px 15px rgba(220, 39, 67, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(220, 39, 67, 0.4); }
.btn-secondary { background: white; color: var(--text-dark); border: 2px solid var(--border-color); }
.btn-secondary:hover { border-color: var(--text-dark); }

/* App UI Mockup */
.hero-visual { flex: 1; display: flex; justify-content: center; position: relative; z-index: 1; }
.phone-mockup { width: 300px; height: 600px; background: white; border: 12px solid #222; border-radius: 40px; box-shadow: var(--shadow); position: relative; overflow: hidden; display: flex; flex-direction: column; }
.phone-notch { position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 120px; height: 25px; background: #222; border-bottom-left-radius: 15px; border-bottom-right-radius: 15px; z-index: 10; }
.install-ui { padding: 40px 20px; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; background: #f8f9fa; }
.install-icon { width: 80px; height: 80px; border-radius: 20px; background: linear-gradient(45deg, var(--ig-orange), var(--ig-magenta)); margin-bottom: 20px; box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
.install-title { font-size: 20px; font-weight: 700; margin-bottom: 5px; }
.install-dev { font-size: 12px; color: var(--text-muted); margin-bottom: 30px; }
.install-progress { width: 100%; height: 6px; background: #e9ecef; border-radius: 3px; margin-bottom: 10px; overflow: hidden; }
.install-bar { width: 65%; height: 100%; background: var(--btn-blue); border-radius: 3px; }
.install-status { font-size: 12px; color: var(--text-muted); font-weight: 600; }

/* Stats */
.stats { display: flex; justify-content: center; gap: 40px; padding: 40px 20px; background: white; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.stat-box { text-align: center; padding: 15px 30px; border-radius: 15px; background: var(--bg-gray); min-width: 180px; }
.stat-box h3 { font-size: 28px; font-weight: 800; color: var(--ig-magenta); margin-bottom: 5px; }
.stat-box p { font-size: 13px; color: var(--text-muted); font-weight: 600; }

/* Container */
.container { max-width: 1100px; margin: 0 auto; padding: 80px 20px; }
.section-title { font-size: 32px; font-weight: 800; text-align: center; margin-bottom: 50px; }

/* Clean Content Box */
.about-box { background: white; border-radius: 20px; padding: 50px; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border-color); margin-bottom: 80px; }
.about-box p { font-size: 16px; color: var(--text-muted); margin-bottom: 20px; line-height: 1.8; }
.about-box p:last-child { margin-bottom: 0; }

/* Visual Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-bottom: 80px; }
.card { background: white; border-radius: 16px; padding: 30px; border: 1px solid var(--border-color); transition: 0.3s; text-align: center; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--ig-magenta); }
.card-icon { font-size: 32px; margin-bottom: 15px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* Screenshots */
.showcase-img { width: 100%; border-radius: 20px; box-shadow: var(--shadow); margin-bottom: 80px; border: 1px solid var(--border-color); }

/* Visual Steps List */
.list-wrapper { max-width: 700px; margin: 0 auto 80px; }
.list-item { background: white; border-radius: 16px; padding: 25px; margin-bottom: 20px; display: flex; gap: 20px; align-items: center; border: 1px solid var(--border-color); box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.list-num { width: 50px; height: 50px; border-radius: 50%; background: var(--bg-gray); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; color: var(--ig-magenta); flex-shrink: 0; }
.list-text h3 { font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.list-text p { font-size: 14px; color: var(--text-muted); line-height: 1.5; }

/* Footer */
.footer { background: var(--bg-gray); border-top: 1px solid var(--border-color); padding: 50px 20px; text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 30px; margin-bottom: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); font-size: 14px; font-weight: 600; }
.footer-links a:hover { color: var(--ig-magenta); }
.footer p { color: #aaa; font-size: 12px; }

@media (max-width: 900px) {
    .hero { flex-direction: column; text-align: center; padding-top: 40px; }
    .hero-content { margin-bottom: 40px; }
    .btn-group { justify-content: center; }
    .hero-visual { display: none; } /* Hide mockup on small screens to save space */
}