/* Global CSS Reset & Variables */
:root {
  --primary-color: #ff2a6d;
  --primary-hover: #ff0055;
  --secondary-color: #05d9e8;
  --accent-purple: #7b2cbf;
  --dark-bg: #0b0c10;
  --card-bg: #1f2833;
  --card-hover: #2d3748;
  --text-main: #ffffff;
  --text-muted: #c5c6c7;
  --nav-bg: rgba(11, 12, 16, 0.92);
  --max-width: 1200px;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* Header & Responsive Navbar */
header {
  background: var(--nav-bg);
  position: sticky; top: 0; z-index: 1000;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-wrapper { display: flex; justify-content: space-between; align-items: center; height: 72px; }

/* Logo Design */
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 15px rgba(255, 42, 109, 0.4);
}
.logo-icon svg { width: 24px; height: 24px; fill: #ffffff; }
.logo-text {
  font-size: 22px; font-weight: 800;
  background: linear-gradient(45deg, #ffffff, var(--primary-color));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}
.logo-text span { font-size: 12px; color: var(--secondary-color); -webkit-text-fill-color: var(--secondary-color); margin-left: 4px; font-weight: 600; }

/* Navigation Links */
.nav-menu { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-link { color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 15px; transition: var(--transition); position: relative; padding: 6px 0; }
.nav-link:hover, .nav-link.active { color: var(--text-main); }
.nav-link.active::after, .nav-link:hover::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}
.nav-btn {
  display: inline-block; padding: 10px 24px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
  color: #ffffff; text-decoration: none; border-radius: 30px;
  font-weight: 600; font-size: 14px; box-shadow: 0 4px 15px rgba(255, 42, 109, 0.3);
  transition: var(--transition); border: none; cursor: pointer;
}
.nav-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255, 42, 109, 0.5); }

/* Mobile Toggle Switch */
.menu-toggle { display: none; flex-direction: column; justify-content: space-between; width: 28px; height: 20px; background: transparent; border: none; cursor: pointer; z-index: 1001; }
.menu-toggle span { width: 100%; height: 3px; background-color: var(--text-main); border-radius: 2px; transition: var(--transition); }

/* Hero Section */
.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.hero-title { font-size: 44px; line-height: 1.25; font-weight: 800; margin-bottom: 20px; }
.hero-title .highlight { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 18px; color: var(--text-muted); margin-bottom: 35px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.2); color: var(--text-main); text-decoration: none; border-radius: 30px; font-weight: 600; transition: var(--transition); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); border-color: rgba(255, 255, 255, 0.4); transform: translateY(-2px); }

/* Phone Mockup */
.hero-phone-mockup { position: relative; display: flex; justify-content: center; align-items: center; }
.phone-screen { width: 270px; height: 500px; background: linear-gradient(180deg, #1f2833 0%, #0b0c10 100%); border: 8px solid #2d3748; border-radius: 40px; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.7), 0 0 30px rgba(255,42,109,0.2); display: flex; flex-direction: column; padding: 20px; position: relative; }
.phone-notch { width: 120px; height: 18px; background: #2d3748; position: absolute; top: 0; left: 50%; transform: translateX(-50%); border-bottom-left-radius: 12px; border-bottom-right-radius: 12px; }
.phone-stream-card { margin-top: 30px; background: linear-gradient(135deg, rgba(255,42,109,0.2), rgba(5,217,232,0.2)); border-radius: 20px; height: 380px; display: flex; flex-direction: column; justify-content: flex-end; padding: 16px; border: 1px solid rgba(255,255,255,0.1); }
.live-badge { background: var(--primary-color); color: #fff; font-size: 11px; font-weight: bold; padding: 4px 10px; border-radius: 12px; align-self: flex-start; margin-bottom: auto; letter-spacing: 1px; }

/* Features Section */
.features { padding: 80px 0; background: rgba(31, 40, 51, 0.3); }
.section-header { text-align: center; max-width: 650px; margin: 0 auto 50px; }
.section-header h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-header p { color: var(--text-muted); font-size: 16px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.feature-card { background: var(--card-bg); padding: 35px 25px; border-radius: var(--radius-lg); border: 1px solid rgba(255, 255, 255, 0.05); transition: var(--transition); }
.feature-card:hover { transform: translateY(-5px); border-color: rgba(255, 42, 109, 0.3); }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg, rgba(255,42,109,0.15), rgba(5,217,232,0.15)); color: var(--primary-color); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-icon svg { width: 28px; height: 28px; fill: currentColor; }

/* Footer */
footer { background: #060709; padding: 60px 0 25px; border-top: 1px solid rgba(255, 255, 255, 0.08); margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; margin-bottom: 40px; }
.footer-about p { color: var(--text-muted); font-size: 14px; margin-top: 16px; max-width: 300px; }
.footer-col h4 { font-size: 16px; font-weight: 600; margin-bottom: 20px; color: var(--text-main); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-muted); text-decoration: none; font-size: 14px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary-color); }
.copyright { text-align: center; color: var(--text-muted); font-size: 13px; padding-top: 25px; border-top: 1px solid rgba(255, 255, 255, 0.05); }

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-actions { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 72px; left: -100%; width: 100%; height: calc(100vh - 72px);
    background: var(--dark-bg); flex-direction: column; padding: 40px 20px; gap: 24px;
    transition: var(--transition); border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav-menu.active { left: 0; }
  .hero-title { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}