:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #111;
  --muted: #777;
  --border: #e5e7eb;
}

[data-theme="dark"] {
  --bg: #0e0f11;
  --card: #15161a;
  --text: #fff;
  --muted: #aaa;
  --border: #2a2b30;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Inter, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--text);
  user-select: none;
}

/* ================================
   FIXED NAV — SAME AS style.css
=================================== */

nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 1100px;
  padding: 14px 24px;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(18px) saturate(160%);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
}

[data-theme="dark"] nav {
  background: rgba(21,22,26,0.6);
  box-shadow: 0 10px 30px rgba(0,0,0,.45);
}

.logo {
  font-family: 'Comfortaa', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
  text-transform: lowercase;
  cursor: pointer;
  color: var(--text);
}

.logo:hover {
  color: #001B94;
}

/* RIGHT SIDE LINKS */
.nav-right {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  font-size: .85rem;
  color: var(--text);
  opacity: .7;
  transition: .2s;
}

.nav-link:hover {
  opacity: 1;
}

/* THEME TOGGLE */
.toggle {
  cursor: pointer;
  font-size: .85rem;
  opacity: .7;
  color: var(--text);
  transition: .2s;
}

.toggle:hover {
  opacity: 1;
}


.toggle { cursor: pointer; opacity: .7; }
.toggle:hover { opacity: 1; }

/* HERO */
.hero-box {
  width: 92%;
  max-width: 950px;
  margin: 110px auto 50px;   /* EXACT SAME AS INDEX */
  padding: 40px 32px;
  background: var(--card);
  border-radius: 22px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px rgba(0,0,0,.12);
  text-align: center;
  transition: .25s;
}

.hero-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0,0,0,0.12);
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 700;
}

.hero-sub {
  margin-top: 40px;
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* CERT BOX */
.cert-box {
  width: 92%;
  max-width: 950px;
  margin: 20px auto 70px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,.12);
  transition: .25s;
}

.cert-box:hover {
  transform: translateY(-6px);
}

.cert-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 40px;
}

.cert-text {
  font-size: .95rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 40px;
}

.btn {
  background: var(--text);
  color: var(--bg);
  padding: 12px 26px;
  border-radius: 12px;
  font-size: .9rem;
  border: none;
  cursor: pointer;
  transition: .2s;
}

.btn:hover { opacity: .85; }