/* =========================
   DESIGN SYSTEM
========================= */

:root {
  /* Fonts */
  --font: "Inter", sans-serif;

  /* Colors */
  --bg: #ffffff;
  --text: #111;
  --muted: #333;

  /* Spacing scale (8px system) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 18px;
  --space-8: 64px;
  --space-9: 96px;
}

/* =========================
   RESET
========================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* =========================
   HAMBURGER (hidden on desktop)
========================= */

.hamburger {
  display: none;
  font-size: 26px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
}

/* =========================
   HEADER (CENTERED)
========================= */


.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-7) var(--space-6) var(--space-4);
  gap: var(--space-4);
}

/* LOGO (20% smaller than default 32px) */
.logo img {
  height: 126px;
  display: block;
}

/* NAV */
.nav {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  align-items: center; /* 👈 key fix */
}

.nav a {
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* =========================
   HERO
========================= */

.hero {
  display: flex;
  justify-content: center;
  padding: var(--space-7) 0;
}

.hero img {
  width: min(750px, 90vw);
  height: auto;
  display: block;
}

/* =========================
   INTRO
========================= */

.intro {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-7) var(--space-6);
  text-align: center;
}

.intro h1 {
  font-size: 28px;
  font-weight: 400;
  margin-bottom: var(--space-4);
}

.intro p {
  font-size: 16px;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* =========================
   TABLET
========================= */

@media (max-width: 1024px) and (min-width: 769px) {
  .hero img {
    width: min(720px, 92vw);
  }

  .intro {
    max-width: 680px;
  }
}

/* =========================
   MOBILE
========================= */
@media (max-width: 768px) {

  /* show hamburger */
  .hamburger {
    display: block;
    position: absolute;
    right: var(--space-6);
    top: var(--space-6);
  }

  /* hide nav by default */
  .nav {
    display: none;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-5);
  }

  /* nav open state */
  .nav.open {
    display: flex;
  }

  /* dropdown adjusts for mobile */
  .dropdown-content {
    position: static;
    box-shadow: none;
    padding-left: var(--space-4);
  }
}

@media (max-width: 768px) {

  :root {
    --space-7: 40px;
    --space-6: 28px;
    --space-5: 20px;
  }

  .header {
    padding: var(--space-6) var(--space-4);
    gap: var(--space-3);
  }

  .nav {
    gap: var(--space-4);
  }

  .nav a {
    font-size: 13px;
  }

  .hero {
    padding: var(--space-6) 0;
  }

  .intro {
    padding: var(--space-6) var(--space-4);
  }

  .intro h1 {
    font-size: 22px;
  }

  .intro p {
    font-size: 15px;
  }
}

/* =========================
   DROPDOWN MENU
========================= */

.dropdown {
  position: relative;
  display: flex;        /* instead of inline-block */
  align-items: center;  /* keeps it aligned with other links */
}

/* main dropdown button */
.dropbtn {
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
}

/* hidden menu */
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  background: var(--bg);
  min-width: 180px;

  padding: 12px 0;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);

  z-index: 100;
}

/* links inside dropdown */
.dropdown-content a {
  display: block;
  padding: 10px 16px;
  text-decoration: none;
  color: var(--text);
  font-size: 13px;
}

.dropdown-content a:hover {
  background: rgba(0,0,0,0.05);
}

/* show on hover (desktop) */
.dropdown:hover .dropdown-content {
  display: block;
}

@media (max-width: 768px) {
  .dropdown-content {
    position: static;
    box-shadow: none;
    padding: 0;
  }

  .dropdown-content a {
    padding: 8px 0;
  }
}