@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

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

body {
  background: #111111;
  color: #fff;
  font-family: "Inter", sans-serif;
  min-height: 100vh;
}

.site-header {
  width: 100%;
  height: 76px;
  background: #181818;
  border-bottom: 1px solid #292929;
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
}

.brand svg {
  width: 38px;
  height: 38px;
  color: #00d2ff;
}

.brand h1 {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.4px;
}

.logo {
  background: linear-gradient(90deg, #00d2ff, #3a47d5);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  font-weight: 700;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: #999;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 8px;
  transition: 0.2s ease;
}

.nav-link:hover,
.current {
  color: #fff;
  background: #242424;
}

.hero {
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 24px 70px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 700px;
}

.hero h2 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -2.5px;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero h2 span,
h2.join span {
  background: linear-gradient(90deg, #00d2ff, #3a47d5);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.hero p {
  color: #999;
  font-size: 17px;
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 520px;
}

.join-card {
  width: 100%;
  max-width: 440px;
  padding: 36px;
  background: #181818;
  border: 1px solid #292929;
  border-radius: 18px;
  text-align: left;
}

.join-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #00d2ff;
  border: none;
  background: transparent;
}

.join-icon svg {
  width: 27px;
  height: 27px;
}

h2.join {
  margin: 0;
  text-align: center;
  line-height: 1.3;
  letter-spacing: -0.6px;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

.join-description {
  margin: 10px auto 28px;
  max-width: 340px;
  color: #888;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}

.join-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  color: #b8b8b8;
  font-size: 13px;
  font-weight: 600;
}

.form-group input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid #303030;
  border-radius: 10px;
  outline: none;
  background: #111;
  color: #fff;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.form-group input::placeholder {
  color: #5f5f5f;
}

.form-group input:hover {
  border-color: #3b3b3b;
}

.form-group input:focus {
  border-color: #00bfe8;
  background: #141414;
}

.chat-button {
  width: 100%;
  height: 50px;
  margin-top: 4px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  outline: none;
  border-radius: 10px;
  background: linear-gradient(90deg, #00d2ff, #3a47d5);
  color: #fff;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.chat-button svg {
  width: 19px;
  height: 19px;
  transition: transform 0.2s ease;
}

.chat-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.chat-button:hover svg {
  transform: translateX(3px);
}

.width-auto {
  width: auto;
}

footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  text-align: center;
  margin-bottom: 10px;
  color: #888888;
}