/* ============================================================
   BlockPay — Main Stylesheet
   Dark crypto theme: black + purple + neon blue
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg-primary:    #050510;
  --bg-secondary:  #0a0a1a;
  --bg-card:       #0f0f22;
  --bg-card-hover: #141430;

  --accent-purple: #7c3aed;
  --accent-blue:   #06b6d4;
  --accent-neon:   #00f5d4;
  --accent-pink:   #d946ef;

  --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
  --gradient-card: linear-gradient(135deg, rgba(124,58,237,.15) 0%, rgba(6,182,212,.08) 100%);
  --gradient-btn:  linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);

  --text-primary:  #f0f0ff;
  --text-secondary:#a0a0c0;
  --text-muted:    #5a5a7a;

  --border:        rgba(124,58,237,.25);
  --border-hover:  rgba(6,182,212,.5);
  --glow-purple:   0 0 40px rgba(124,58,237,.4);
  --glow-blue:     0 0 40px rgba(6,182,212,.4);
  --glow-neon:     0 0 20px rgba(0,245,212,.5);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
  --transition-slow: all .6s cubic-bezier(.4, 0, .2, 1);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-purple); border-radius: 3px; }

/* ── Utility Classes ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,.15);
  border: 1px solid var(--border);
  color: var(--accent-blue);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-tag::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent-neon);
  border-radius: 50%;
  box-shadow: var(--glow-neon);
  animation: pulse 2s infinite;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes pulse   { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }
@keyframes float   { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }
@keyframes glow-pulse { 0%,100%{box-shadow:var(--glow-purple)} 50%{box-shadow:var(--glow-blue)} }
@keyframes slideUp { from{opacity:0;transform:translateY(40px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn  { from{opacity:0} to{opacity:1} }
@keyframes spin    { to{transform:rotate(360deg)} }
@keyframes gradientShift { 0%{background-position:0% 50%} 50%{background-position:100% 50%} 100%{background-position:0% 50%} }
@keyframes borderGlow { 0%,100%{border-color:rgba(124,58,237,.3)} 50%{border-color:rgba(6,182,212,.6)} }
@keyframes particleFloat {
  0%   { transform: translateY(100vh) translateX(0) scale(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: .6; }
  100% { transform: translateY(-20px) translateX(var(--tx, 50px)) scale(1.2); opacity: 0; }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Navbar ─────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
}

#navbar.scrolled {
  background: rgba(5,5,16,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0,0,0,.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  width: 38px; height: 38px;
  background: var(--gradient-btn);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  box-shadow: var(--glow-purple);
}

.logo-text span { color: var(--accent-blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: .9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient-btn);
  border-radius: 2px;
  transition: width .3s ease;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.btn-nav {
  background: var(--gradient-btn);
  color: #fff;
  padding: 10px 22px;
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(124,58,237,.35);
}
.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(124,58,237,.55);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: transparent;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 70px 0 0 0;
  background: rgba(5,5,16,.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  z-index: 999;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 600;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gradient-btn);
  color: #fff;
  padding: 16px 34px;
  border-radius: 100px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  box-shadow: 0 6px 28px rgba(124,58,237,.4);
  animation: glow-pulse 3s infinite;
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 40px rgba(124,58,237,.6);
}
.btn-primary svg { transition: transform .3s ease; }
.btn-primary:hover svg { transform: translateX(4px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-primary);
  padding: 14px 30px;
  border-radius: 100px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

/* ── Hero Section ───────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 10% 20%, rgba(124,58,237,.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 90% 80%, rgba(6,182,212,.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(217,70,239,.06) 0%, transparent 60%);
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,58,237,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,58,237,.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at center, black 30%, transparent 70%);
}

/* Floating orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 6s ease-in-out infinite;
}
.orb-1 {
  width: 420px; height: 420px;
  background: rgba(124,58,237,.2);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 320px; height: 320px;
  background: rgba(6,182,212,.15);
  bottom: 0; right: -80px;
  animation-delay: 2s;
}
.orb-3 {
  width: 200px; height: 200px;
  background: rgba(217,70,239,.1);
  top: 40%; right: 25%;
  animation-delay: 4s;
}

/* Particles */
#particles-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,.12);
  border: 1px solid rgba(124,58,237,.3);
  color: var(--text-secondary);
  font-size: .8rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: borderGlow 3s infinite;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent-neon);
  border-radius: 50%;
  box-shadow: var(--glow-neon);
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 24px;
  letter-spacing: -.02em;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-stats {
  display: flex;
  gap: 36px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.crypto-card-stack {
  position: relative;
  width: 340px; height: 420px;
}

.crypto-card {
  position: absolute;
  width: 300px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  transition: var(--transition-slow);
}

.crypto-card.card-main {
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  animation: float 5s ease-in-out infinite;
  border-color: rgba(124,58,237,.4);
  box-shadow: 0 20px 60px rgba(0,0,0,.5), var(--glow-purple);
}

.crypto-card.card-back-1 {
  top: 38%; left: 42%;
  transform: translate(-50%, -50%) rotate(-8deg);
  z-index: 2;
  animation: float 5s ease-in-out infinite 1s;
  opacity: .7;
}

.crypto-card.card-back-2 {
  top: 62%; left: 58%;
  transform: translate(-50%, -50%) rotate(6deg);
  z-index: 1;
  animation: float 5s ease-in-out infinite 2s;
  opacity: .5;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.card-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1rem;
}

.card-logo-icon {
  width: 32px; height: 32px;
  background: var(--gradient-btn);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: .9rem;
}

.card-type {
  font-size: .7rem;
  color: var(--text-muted);
  background: rgba(255,255,255,.05);
  padding: 4px 10px;
  border-radius: 100px;
}

.card-amount {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.card-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.card-currencies {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.currency-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
}

.currency-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.dot-btc { background: #f59e0b; }
.dot-eth { background: #818cf8; }
.dot-usdt { background: #10b981; }
.dot-sol { background: #a855f7; }

.transaction-list { margin-top: 18px; }

.tx-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  font-size: .82rem;
}
.tx-item:last-child { border-bottom: none; }

.tx-info { display: flex; flex-direction: column; gap: 2px; }
.tx-name { font-weight: 600; }
.tx-date { color: var(--text-muted); font-size: .72rem; }
.tx-amount { font-weight: 700; color: var(--accent-neon); }

/* ── Section Spacing ────────────────────────────────────────── */
section { padding: 100px 0; }

/* ── Video Section ──────────────────────────────────────────── */
#video-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

#video-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(124,58,237,.08) 0%, transparent 70%);
}

.video-header { text-align: center; margin-bottom: 52px; }
.video-header .section-subtitle { margin: 0 auto; }

/* ── Featured video player ──── */
.video-wrapper {
  position: relative;
  max-width: 900px;
  margin: 0 auto 36px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 30px 80px rgba(0,0,0,.6), var(--glow-purple);
}

.video-wrapper::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: var(--gradient-hero);
  z-index: -1;
  padding: 1px;
}

/* Now-playing bar */
.video-now-playing {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: rgba(10,10,26,.9);
  border-bottom: 1px solid var(--border);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: .04em;
}
.vnp-dot {
  width: 8px; height: 8px;
  background: var(--accent-neon);
  border-radius: 50%;
  box-shadow: var(--glow-neon);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

.video-responsive {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-responsive iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* Video glow rings */
.video-glow {
  position: absolute;
  inset: -30px;
  border-radius: var(--radius-xl);
  background: transparent;
  border: 1px solid rgba(124,58,237,.2);
  animation: borderGlow 4s infinite;
  pointer-events: none;
}

/* ── Video selector cards ──── */
.video-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.vcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.vcard:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.4);
}

.vcard.active {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 1px var(--accent-purple), var(--glow-purple);
  background: var(--bg-card-hover);
}

.vcard-thumb {
  position: relative;
  height: 80px;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.vcard-icon {
  font-size: 2rem;
  transition: transform .3s ease;
}

.vcard:hover .vcard-icon { transform: scale(1.15); }

.vcard-play {
  position: absolute;
  bottom: 8px; right: 10px;
  width: 28px; height: 28px;
  background: var(--gradient-btn);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: .65rem;
  color: #fff;
  opacity: 0;
  transform: scale(.8);
  transition: var(--transition);
}

.vcard:hover .vcard-play,
.vcard.active .vcard-play {
  opacity: 1;
  transform: scale(1);
}

.vcard.active .vcard-thumb {
  background: linear-gradient(135deg, rgba(124,58,237,.25) 0%, rgba(6,182,212,.15) 100%);
}

.vcard-body {
  padding: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.vcard-num {
  font-size: .68rem;
  font-weight: 700;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: .1em;
}

.vcard.active .vcard-num { color: var(--accent-blue); }

.vcard-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: .88rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
}

.vcard-desc {
  font-size: .75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 768px) {
  .video-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .video-cards { grid-template-columns: 1fr; }
}

/* ── Features Section ───────────────────────────────────────── */
#features { background: var(--bg-primary); }

.features-header { text-align: center; margin-bottom: 64px; }
.features-header .section-subtitle { margin: 0 auto; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  cursor: default;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  background: var(--gradient-card);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-btn);
  transform: scaleX(0);
  transition: transform .4s ease;
  transform-origin: left;
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,.4), var(--glow-blue);
  background: var(--bg-card-hover);
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.icon-purple  { background: rgba(124,58,237,.2);  border: 1px solid rgba(124,58,237,.3); }
.icon-blue    { background: rgba(6,182,212,.15);   border: 1px solid rgba(6,182,212,.25); }
.icon-neon    { background: rgba(0,245,212,.1);    border: 1px solid rgba(0,245,212,.2); }
.icon-pink    { background: rgba(217,70,239,.12);  border: 1px solid rgba(217,70,239,.2); }
.icon-amber   { background: rgba(245,158,11,.12);  border: 1px solid rgba(245,158,11,.2); }
.icon-green   { background: rgba(16,185,129,.12);  border: 1px solid rgba(16,185,129,.2); }

.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: .9rem;
  line-height: 1.65;
}

.feature-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--accent-blue);
  background: rgba(6,182,212,.1);
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* ── About Section ──────────────────────────────────────────── */
#about {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

#about::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,.1) 0%, transparent 70%);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  /* Prevent the visual from bleeding into the content column */
  min-width: 0;
  overflow: visible;
}

/* Orbit wrapper — this is what actually contains the rings */
.about-orbit {
  position: relative;
  width: 440px;
  height: 440px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
}

.about-circle {
  width: 220px; height: 220px;
  border-radius: 50%;
  background: var(--gradient-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
  text-align: center;
  box-shadow: var(--glow-purple);
  animation: float 6s ease-in-out infinite;
  position: relative;
  z-index: 2;
}

.about-circle-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.about-circle-label {
  color: var(--text-secondary);
  font-size: .8rem;
  font-weight: 500;
  padding: 0 12px;
}

/* Rings are now absolute inside .about-orbit */
.ring {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px dashed;
  animation: spin linear infinite;
}

.ring-1 {
  width: 300px; height: 300px;
  border-color: rgba(124,58,237,.3);
  animation-duration: 20s;
}

.ring-2 {
  width: 400px; height: 400px;
  border-color: rgba(6,182,212,.2);
  animation-duration: 30s;
  animation-direction: reverse;
}

.ring-dot {
  position: absolute;
  top: -5px; left: 50%;
  transform: translateX(-50%);
  width: 10px; height: 10px;
  background: var(--accent-neon);
  border-radius: 50%;
  box-shadow: var(--glow-neon);
}

.about-content { position: relative; z-index: 2; }

.about-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 24px;
}

.about-list { margin-top: 28px; margin-bottom: 36px; }

.about-list-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  font-size: .95rem;
  font-weight: 500;
}

.about-list-item:last-child { border-bottom: none; }

.check-icon {
  width: 30px; height: 30px;
  background: rgba(0,245,212,.12);
  border: 1px solid rgba(0,245,212,.25);
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: .8rem;
  color: var(--accent-neon);
}

/* ── Signup Section ─────────────────────────────────────────── */
#signup {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

#signup::before {
  content: '';
  position: absolute;
  bottom: -200px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(6,182,212,.08) 0%, transparent 70%);
}

.signup-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.signup-info { padding-top: 10px; }

.signup-info .section-subtitle { margin-bottom: 36px; }

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.info-card:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
}

.info-icon {
  font-size: 1.5rem;
  width: 48px; height: 48px;
  background: rgba(124,58,237,.15);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.info-card-text h4 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.info-card-text p {
  font-size: .82rem;
  color: var(--text-secondary);
}

/* Form */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  position: relative;
  overflow: hidden;
}

.form-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-btn);
}

.form-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-desc {
  color: var(--text-secondary);
  font-size: .88rem;
  margin-bottom: 32px;
}

.form-group {
  position: relative;
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.form-label .required { color: var(--accent-pink); margin-left: 2px; }

.form-control {
  width: 100%;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: .95rem;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}

.form-control::placeholder { color: var(--text-muted); }

.form-control:focus {
  border-color: var(--accent-purple);
  background: rgba(124,58,237,.06);
  box-shadow: 0 0 0 4px rgba(124,58,237,.12);
}

.form-control:focus + .form-focus-ring {
  opacity: 1;
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit {
  width: 100%;
  background: var(--gradient-btn);
  color: #fff;
  padding: 16px;
  border-radius: var(--radius-md);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(124,58,237,.4);
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  letter-spacing: .02em;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(124,58,237,.55);
}

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

/* Success / Error messages */
.form-message {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 20px;
  align-items: center;
  gap: 10px;
}

.form-message.success {
  display: flex;
  background: rgba(0,245,212,.1);
  border: 1px solid rgba(0,245,212,.3);
  color: var(--accent-neon);
}

.form-message.error {
  display: flex;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: #f87171;
}

/* ── CTA Section ────────────────────────────────────────────── */
#cta-section {
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

#cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 70% at 50% 50%, rgba(124,58,237,.15) 0%, transparent 60%);
}

.cta-inner { position: relative; z-index: 2; }

.cta-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.15;
}

.cta-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 40px;
}

.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ─────────────────────────────────────────────────── */
#footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 60px 0 36px;
}



.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.05);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: .82rem;
}

.footer-copy span { color: var(--accent-purple); }

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 38px; height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: .95rem;
  transition: var(--transition);
  color: var(--text-secondary);
}

.social-link:hover {
  background: rgba(124,58,237,.2);
  border-color: var(--accent-purple);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--glow-purple);
}

/* ── Page Loader ────────────────────────────────────────────── */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  transition: opacity .5s ease, visibility .5s ease;
}

#page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.loader-bar {
  width: 200px; height: 3px;
  background: rgba(255,255,255,.08);
  border-radius: 3px;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  background: var(--gradient-btn);
  border-radius: 3px;
  animation: loaderAnim 1.6s ease forwards;
}

@keyframes loaderAnim { from{width:0} to{width:100%} }

/* ── Back to Top Button ─────────────────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 48px; height: 48px;
  background: var(--gradient-btn);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px rgba(124,58,237,.4);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 500;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(124,58,237,.6);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner    { gap: 40px; }
  .about-inner   { gap: 48px; }
  .footer-top    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }

  .nav-links, .btn-nav { display: none; }
  .hamburger { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual { display: none; }

  .hero-cta   { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-badge { justify-content: center; }

  .features-grid { grid-template-columns: 1fr; }

  .about-inner  { grid-template-columns: 1fr; text-align: center; }
  .about-visual { display: none; }

  .signup-inner { grid-template-columns: 1fr; }
  .signup-info  { display: none; }

  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 32px 24px; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .about-list-item { justify-content: center; }
  .section-subtitle { margin: 0 auto; }
}

@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; align-items: center; gap: 20px; }
  .cta-buttons { flex-direction: column; align-items: center; }
}