:root{ --color-primary: #111111; --color-secondary: #666666;  --color-accent: #2563eb;  --color-bg: #ffffff;  --color-light: #f5f7fb;  --radius: 14px;  --shadow:  0 10px 30px rgba(0,0,0,0.08); --container:  min(1200px, 92%);   --transition:  0.3s ease   }
  
* { margin: 0; padding: 0; box-sizing: border-box }

body{ font-family: 'Inter', sans-serif; background: var(--color-bg); color: var(--color-primary); line-height: 1.6 }
img { max-width: 100%; display: block }
.container { width: var(--container); margin-inline: auto }

/* HEADER */
.site-header{ position: fixed; width: 100%; top: 0; left: 0; z-index: 1000; transition: var(--transition) }
.transparent-header{ background: transparent }
.site-header.scrolled{ background: white; box-shadow: var(--shadow) }
.nav-wrapper{ display: flex; align-items: center; justify-content: space-between; min-height: 80px }
.logo{ font-size: 1.5rem; font-weight: 700; text-decoration: none; color: var(--color-primary) }

/* HERO */
.hero{ padding-top: 140px; padding-bottom: 100px; background:  linear-gradient(   180deg,   #f5f7fb 0%, #ffffff 100%  ) }
.hero-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center }
.badge{ display: inline-block; background: rgba(37,99,235,0.1); color: var(--color-accent); padding: 0.5rem 1rem; border-radius: 999px; margin-bottom: 1rem; font-size: 0.9rem }
.hero h1{ font-size:  clamp(2.8rem, 6vw, 5rem); line-height: 1.1; margin-bottom: 1.5rem }
.hero p{ font-size: 1.2rem; color: var(--color-secondary); margin-bottom: 2rem }
.hero-buttons{ display: flex; gap: 1rem; flex-wrap: wrap }
.btn{ display: inline-flex; align-items: center; justify-content: center; padding: 1rem 2rem; border-radius: 999px; text-decoration: none; font-weight: 600; transition: var(--transition) }
.btn{ background: var(--color-primary); color: white }
.btn:hover{ transform: translateY(-2px) }
.btn-secondary{ background: white; color: var(--color-primary); border: 1px solid #ddd }

/* HERO CARD */
.hero-card{ background: white; border-radius: var(--radius); box-shadow: var(--shadow); padding: 2rem }
.dashboard-preview{ border-radius: var(--radius); overflow: hidden }
.dashboard-top{ height: 60px; background: #e5e7eb }
.dashboard-content{ display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; padding: 1rem }
.stat{ height: 120px; border-radius: 12px; background: #f3f4f6 }

/* FEATURES */
.features{ padding: 100px 0 }
.grid-3{ display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem }
.feature-card{ padding: 2rem; border-radius: var(--radius); background: white; box-shadow: var(--shadow) }


/* FOOTER */
.site-footer{ padding: 4rem 0; text-align: center; border-top: 1px solid #eee }

/* RESPONSIVE */
@media (max-width: 900px){ 
 .hero-grid{  grid-template-columns: 1fr; }
 .grid-3{  grid-template-columns: 1fr; }

}


/* PAGE */
main.content{padding:140px 0;}
main.content h1{margin:20px auto; width: 90%;}
main.content h2, main.content p{margin:20px auto; width: 90%;}





/*MENU */

:root{ --bg: rgba(255,255,255,0.72);  
	--text: #111; 
	--hover: #0071e3; 
	--border: rgba(255,255,255,0.18); 
	--border-soft: rgba(0,0,0,0.06); 
	--shadow: 0 20px 50px rgba(0,0,0,0.08); 
	--blur: blur(20px); 
	--radius: 18px; 
	--transition: .45s cubic-bezier(.76,0,.24,1);}

/* reset */
.main-nav ul{ list-style: none; margin: 0; padding: 0;}
.main-nav li{position: relative;}
.main-nav a{text-decoration: none; transition: var(--transition);}

/* burger */
.menu-toggle{ position: fixed; top: 24px; right: 24px; width: 54px; height: 54px; border: none; outline: none; cursor: pointer; z-index: 9999; border-radius: 50%; background: rgba(0,0,0,0.12); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.18); display: none; align-items: center; justify-content: center; flex-direction: column; gap: 6px; transition: var(--transition);}
.menu-toggle span{ width: 22px; height: 2px; background: #000; border-radius: 10px; transition: var(--transition);}

/* Burger active */
.menu-open .menu-toggle span{transform: translateX(15px);}
.menu-open .menu-toggle span:first-child{ transform: rotate(45deg) translateY(6px); }
.menu-open .menu-toggle span:last-child{ transform: rotate(-45deg) translateY(-6px);}

/* Desktop */
@media(min-width: 992px){
 /* Hide burger */ .menu-toggle{ display: none; }
 /* NAV */ .main-nav{ position: relative; z-index: 1000; }
 .main-nav > ul{ display: flex; align-items: center; gap: 8px; }
 .main-nav a{ display: flex; align-items: center; gap: 8px; padding: 14px 18px; color: var(--text); font-size: 18px; font-weight: 500; letter-spacing: -.01em; border-radius: 12px; }
 /* Hover top links */
 .main-nav > ul > li > a:hover{ background: rgba(0,0,0,0.04); color: var(--hover); }
 /* sous-menu */
 .main-nav .sub-menu{ position: absolute; top: calc(100% + 14px); left: 0; min-width: 200px; padding: 12px; background: var(--bg); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border-soft); border-radius: var(--radius); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(10px) scale(.98); transition: var(--transition); z-index: 999; }
 /* Arrow */
 .main-nav .sub-menu::before{ content: ""; position: absolute; top: -7px; left: 28px; width: 14px; height: 14px; background: rgba(255,255,255,0.72); border-left: 1px solid var(--border-soft); border-top: 1px solid var(--border-soft); transform: rotate(45deg); backdrop-filter: var(--blur); }
 /* Show submenu */
 .main-nav li:hover > .sub-menu{ opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
 /* Submenu links */
 .main-nav .sub-menu li a{ padding: 10px 16px; border-radius: 12px; font-size: 18px; font-weight: 500; color: var(--text); }
 .main-nav .sub-menu li a:hover{ background: rgba(255,255,255,0.75); color: var(--hover); transform: translateX(4px); }
 /* Nested submenu */
 .main-nav .sub-menu .sub-menu{ top: 0; left: calc(100% + 12px); }
 /* Remove mobile + icon on desktop */
 .menu-item-has-children > a::after{ display: none; }
}

/* Mobile */
@media(max-width: 991px){
 /* Show burger */
 .menu-toggle{ display: flex; }
 /* FULLSCREEN NAV */
 .main-nav{ position: fixed; inset: 0; width: 100%; height: 100vh; background: rgba(255,255,255,0.72); backdrop-filter: blur(40px); -webkit-backdrop-filter: blur(40px); z-index: 9998; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: var(--transition); }
 /* Open */
 .menu-open .main-nav{ opacity: 1; visibility: visible; }
 /* MENU */
 .main-nav ul{ text-align: center; width: 100%; padding: 0 24px; }
 .main-nav li{ margin: 12px 0; overflow: hidden; }
 .main-nav a{ color: white; font-size: clamp(32px, 5vw, 64px); font-weight: 600; letter-spacing: -0.04em; display: inline-flex; align-items: center; gap: 12px; }
 /* Hover */
 .main-nav a:hover{ color: rgba(255,255,255,0.55); }
 /* sous-menu */
 .main-nav .sub-menu{ max-height: 0; overflow: hidden; transition: .5s ease; margin-top: 10px; }
 .main-nav .menu-item-has-children.active > .sub-menu{ max-height: 500px; }
 .main-nav .sub-menu li{ margin: 10px 0; }
 .main-nav .sub-menu a{ font-size: clamp(18px, 2vw, 28px); font-weight: 400; opacity: .75; }
 /* PLUS ICON */
 .menu-item-has-children > a::after{ content: "+"; font-size: .7em; transition: var(--transition); }
 .menu-item-has-children.active > a::after{ transform: rotate(45deg); }
 /* Remove desktop arrow */
 .main-nav .sub-menu::before{ display: none; }
}