:root {
  --background: #F9FAFB;
  --primary: #F43F5E;
  --action: #84CC16;
  --accent: #FBBF24;
  --text-dark: #374151;
  --text-light: #FFFFFF;
  --header-h: 64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Poppins", sans-serif;
  background: var(--background);
  color: var(--text-dark);
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--background);
  height: var(--header-h);
  padding: 0 16px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .05);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.logo img { width: 28px; height: 28px; }
.logo span { color: var(--action); font-weight: 700; font-size: 1.35rem; }
nav { display: flex; align-items: center; gap: 1.5rem; }
nav a { text-decoration: none; color: var(--text-dark); font-weight: 500; transition: color .3s; }
nav a:hover { color: var(--primary); }

/* Hamburger */
.hamburger {
  display: none;
  width: 32px; height: 24px; cursor: pointer; position: relative;
}
.hamburger span {
  display: block; position: absolute; left: 0; right: 0; height: 3px;
  border-radius: 3px; background: var(--text-dark);
  transition: transform .25s ease, opacity .2s ease, top .25s ease;
}
.hamburger span:nth-child(1){top:3px}
.hamburger span:nth-child(2){top:10.5px}
.hamburger span:nth-child(3){top:18px}
.hamburger.active span:nth-child(1){top:10.5px; transform:rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){top:10.5px; transform:rotate(-45deg)}

/* Mobile nav */
.mobile-wrap{position:fixed;left:0;right:0;top:var(--header-h);z-index:25;}
.mobile-nav{
  background:var(--background);border-top:1px solid #eee;box-shadow:0 8px 16px rgba(0,0,0,.06);
  overflow:hidden;max-height:0;transition:max-height .35s ease;
}
.mobile-nav.open{max-height:320px;}
.mobile-nav a{display:block;padding:14px 18px;text-decoration:none;color:var(--text-dark);font-weight:500;}
.mobile-nav a+a{border-top:1px solid #f1f1f1}

/* Footer */
footer {
  background: var(--primary);
  color: var(--text-light);
  text-align: center;
  padding: 2rem;
  font-size: .9rem;
}
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width:768px){nav{display:none}.hamburger{display:block}}



html, body {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
}

body > main {
  flex: 1;
}