/* ========== BASE ========== */
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #f5f5f5;
  background-color: #121212;
  line-height: 1.6;
}

h1, h2 {
  margin: 0 0 1rem;
  font-weight: 700;
  color: #00d4d8;
}

p { margin-bottom: 1rem; }

img { max-width: 100%; }

/* ========== NAVBAR ========== */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(18, 18, 18, 0.9);
  backdrop-filter: blur(6px);
  padding: 0.5rem 1rem;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: auto;
}

.nav-logo { width: 40px; margin-right: 10px; }

.brand {
  font-size: 1.2rem;
  color: #00d4d8;
  margin-right: auto;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: #f5f5f5;
  transition: color .2s;
}

.nav-links a:hover { color: #00d4d8; }

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: clamp(60vh, 80vh, 92vh);
  display: grid;
  place-items: center;
  text-align: center;
  background: url("../assets/hero.png") center/cover no-repeat fixed;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1200px 600px at 55% 25%, rgba(0,0,0,0.15), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0.45), rgba(0,0,0,0.65));
  z-index: -1;
  backdrop-filter: blur(0.5px);
}

.hero-inner {
  max-width: min(980px, 92vw);
  margin-inline: auto;
  padding: clamp(16px, 2.5vw, 32px);
}

.hero h1 {
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: .3px;
  line-height: 1.15;
  font-size: clamp(28px, 4.2vw + 8px, 56px);
  color: #ffffff;
  text-shadow: 0 6px 24px rgba(0,0,0,.35);
}

.hero .sub {
  margin: 0 auto 24px;
  max-width: 800px;
  color: #d6f3f3;
  opacity: .95;
  font-size: clamp(14px, 1.2vw + 10px, 18px);
}

/* ========== BUTTONS ========== */
.actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.15);
  color: #eafefe;
  text-decoration: none;
  font-weight: 700;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  background: rgba(20, 36, 44, .55);
  backdrop-filter: blur(2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

.btn:hover {
  transform: translateY(-2px);
  border-color: rgba(0,212,216,.55);
}

.btn:active { transform: translateY(0); }

.btn.primary {
  background: linear-gradient(135deg, #0fb9bf, #2c5364);
  color: #042b2d;
  border-color: transparent;
}
.btn.primary:hover {
  box-shadow: 0 10px 28px rgba(15,185,191,.35);
}

/* ========== SECTIONS ========== */
section {
  padding: 3rem 1rem;
  text-align: center;
}

.features-list {
  list-style: none;
  padding: 0;
  margin: 1rem auto;
  max-width: 600px;
  text-align: left;
}

.features-list li { margin-bottom: 0.5rem; }

/* ========== FOOTER ========== */
footer {
  background: #111;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  color: #aaa;
}

footer a {
  color: #00d4d8;
  text-decoration: none;
}