/* Submind Official GitHub Pages Stylesheet */
:root {
  --bg-color: #0A0F1A;
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --primary-purple: #6B5CE7;
  --primary-cyan: #00D4C9;
  --gold-accent: #FCCD6F;
  --text-main: #FFFFFF;
  --text-muted: rgba(255, 255, 255, 0.65);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Ambient Orbs */
.bg-orb-1 {
  position: fixed;
  top: -150px;
  left: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(107, 92, 231, 0.35) 0%, rgba(107, 92, 231, 0) 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

.bg-orb-2 {
  position: fixed;
  bottom: -150px;
  right: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0, 212, 201, 0.3) 0%, rgba(0, 212, 201, 0) 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

/* Container */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px;
}

/* Header & Nav */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--card-border);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 15px rgba(107, 92, 231, 0.4);
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(90deg, #A29BFE, var(--primary-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lang-select {
  background: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  backdrop-filter: blur(10px);
}

.lang-select option {
  background-color: #0A0F1A;
  color: #FFF;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 50px;
}

.badge {
  display: inline-block;
  background: rgba(252, 205, 111, 0.15);
  color: var(--gold-accent);
  border: 1px solid rgba(252, 205, 111, 0.3);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 30px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(90deg, var(--primary-purple), #5B4BC4);
  color: #FFF;
  text-decoration: none;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(107, 92, 231, 0.5);
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(107, 92, 231, 0.7);
}

/* Feature Grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 50px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(12px);
}

.card-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary-cyan);
}

.card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Section Titles */
.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-cyan);
}

/* Support Box */
.support-box {
  background: rgba(0, 212, 201, 0.08);
  border: 1px solid rgba(0, 212, 201, 0.25);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 40px;
  text-align: center;
}

.support-email {
  display: inline-block;
  color: var(--primary-cyan);
  font-weight: 700;
  font-size: 18px;
  margin-top: 8px;
  text-decoration: none;
}

.support-email:hover {
  text-decoration: underline;
}

/* Footer */
footer {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 16px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary-cyan);
}