:root {
  --color-bg: #071624;
  --color-surface: rgba(10, 37, 64, 0.78);
  --color-surface-strong: rgba(10, 37, 64, 0.92);
  --color-card: rgba(255, 255, 255, 0.07);
  --color-text: #ffffff;
  --color-muted: #a9c0d2;
  --color-line: rgba(255, 255, 255, 0.1);
  --color-primary: #00c8ff;
  --color-secondary: #27d17f;
  --color-light: #f5f7fa;
  --color-shadow: 0 25px 80px rgba(0, 0, 0, 0.25);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --transition: 0.3s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 200, 255, 0.2), transparent 30%),
    radial-gradient(circle at top right, rgba(39, 209, 127, 0.18), transparent 28%),
    linear-gradient(180deg, #061321 0%, #091d32 50%, #071624 100%);
  color: var(--color-text);
  overflow-x: hidden;
}

body.light-mode {
  --color-bg: #eef4fb;
  --color-surface: rgba(255, 255, 255, 0.82);
  --color-surface-strong: rgba(255, 255, 255, 0.95);
  --color-card: rgba(10, 37, 64, 0.05);
  --color-text: #0a2540;
  --color-muted: #4f6d84;
  --color-line: rgba(10, 37, 64, 0.1);
  background:
    radial-gradient(circle at top left, rgba(0, 200, 255, 0.2), transparent 32%),
    radial-gradient(circle at top right, rgba(39, 209, 127, 0.14), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, #eef4fb 55%, #e6eef7 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

video {
  max-width: 100%;
}

.site-header .navbar {
  padding: 1rem 0;
  background: rgba(5, 18, 34, 0.68);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-line);
}

body.light-mode .site-header .navbar {
  background: rgba(255, 255, 255, 0.7);
}

.navbar-brand img,
.footer-logo {
  width: 160px;
}

.navbar .nav-link {
  color: var(--color-text);
  font-weight: 500;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--color-primary);
}

.btn-info {
  background: linear-gradient(135deg, var(--color-primary), #56e5ff);
  color: #04253c;
  border: 0;
  font-weight: 700;
}

.btn-info:hover {
  color: #04253c;
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--color-text);
}

.btn-outline-light,
.btn-ghost,
.btn-info {
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.glass-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  backdrop-filter: blur(18px);
}

.section-block {
  position: relative;
  padding: 6rem 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
}

body.light-mode .section-alt {
  background: linear-gradient(180deg, rgba(10, 37, 64, 0.02), rgba(10, 37, 64, 0.03));
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-heading.text-start {
  margin: 0 0 2rem;
}

.section-heading h2,
.hero-section h1 {
  font-size: clamp(2.4rem, 4vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.section-heading p,
.hero-section .lead {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.eyebrow,
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
}

.nowrap-text {
  white-space: nowrap;
}

.hero-pill {
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.particles-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  bottom: -30px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.8), rgba(39, 209, 127, 0.7));
  filter: blur(0.5px);
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  from {
    transform: translateY(0) scale(0.9);
  }
  to {
    transform: translateY(-110vh) scale(1.2);
  }
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-chip {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(0, 200, 255, 0.11);
  color: var(--color-primary);
  border: 1px solid rgba(0, 200, 255, 0.2);
  font-size: 0.82rem;
  font-weight: 600;
}

.logo-badge,
.avatar-dot {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.18), rgba(39, 209, 127, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 800;
  color: var(--color-text);
}

.result-top,
.market-head,
.feed-head {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.meta-list {
  padding-left: 1rem;
  margin: 0;
  color: var(--color-muted);
}

.meta-list li + li {
  margin-top: 0.35rem;
}

.form-select,
.form-control {
  min-height: 52px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  border: 1px solid var(--color-line);
}

.form-select:focus,
.form-control:focus {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
  border-color: rgba(0, 200, 255, 0.5);
  box-shadow: 0 0 0 0.25rem rgba(0, 200, 255, 0.15);
}

.form-control::placeholder,
.form-select::placeholder {
  color: #ffffff;
  opacity: 1;
}

body.light-mode .form-select,
body.light-mode .form-control {
  background: rgba(10, 37, 64, 0.03);
}

.form-select option {
  color: #0a2540;
}

.form-feedback {
  font-size: 0.95rem;
}

.form-feedback.success {
  color: var(--color-secondary);
}

.form-feedback.error {
  color: #ff8f8f;
}

.empty-state {
  padding: 2rem;
  text-align: center;
}

.filter-form,
.join-form {
  padding: 1.5rem;
}

.site-footer {
  position: relative;
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--color-line);
  background: rgba(6, 19, 33, 0.7);
}

body.light-mode .site-footer {
  background: rgba(255, 255, 255, 0.6);
}

.footer-links,
.social-links,
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.social-links a {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.footer-bottom {
  justify-content: space-between;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.scroll-top-button {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 1000;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(0, 200, 255, 0.3);
  border-radius: 50%;
  background: rgba(10, 37, 64, 0.85);
  color: #ffffff;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition);
}

.scroll-top-button.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-button:hover {
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.95), rgba(39, 209, 127, 0.85));
  color: #04253c;
}