:root {
  color-scheme: dark;
  --color-bg: #020409;
  --color-surface: #0d1117;
  --color-surface-2: #161b22;
  --color-border: #21262d;
  --color-border-2: #30363d;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-green: #3fb950;
  --color-green-dark: #238636;
  --color-green-glow: rgba(46, 160, 67, 0.4);
  --color-blue: #58a6ff;
  --color-blue-muted: #388bfd;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Animated background particles ── */
.bg-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-particles span {
  position: absolute;
  display: block;
  border-radius: 50%;
  opacity: 0;
  animation: float-up linear infinite;
}

.bg-particles span:nth-child(1) { width: 3px; height: 3px; left: 10%; background: #3fb950; animation-duration: 14s; animation-delay: 0s; }
.bg-particles span:nth-child(2) { width: 2px; height: 2px; left: 25%; background: #58a6ff; animation-duration: 18s; animation-delay: 3s; }
.bg-particles span:nth-child(3) { width: 4px; height: 4px; left: 45%; background: #3fb950; animation-duration: 12s; animation-delay: 6s; }
.bg-particles span:nth-child(4) { width: 2px; height: 2px; left: 60%; background: #388bfd; animation-duration: 20s; animation-delay: 1s; }
.bg-particles span:nth-child(5) { width: 3px; height: 3px; left: 75%; background: #3fb950; animation-duration: 16s; animation-delay: 8s; }
.bg-particles span:nth-child(6) { width: 2px; height: 2px; left: 88%; background: #58a6ff; animation-duration: 11s; animation-delay: 4s; }
.bg-particles span:nth-child(7) { width: 3px; height: 3px; left: 33%; background: #3fb950; animation-duration: 22s; animation-delay: 9s; }
.bg-particles span:nth-child(8) { width: 2px; height: 2px; left: 55%; background: #58a6ff; animation-duration: 15s; animation-delay: 2s; }
.bg-particles span:nth-child(9) { width: 4px; height: 4px; left: 80%; background: #3fb950; animation-duration: 17s; animation-delay: 7s; }

@keyframes float-up {
  0%   { transform: translateY(110vh) scale(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-10vh) scale(1.2); opacity: 0; }
}

/* ── Layout ── */
.application-main {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
header {
  background-color: rgba(1, 4, 9, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.Header {
  max-width: 1012px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.Header-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.Header-logo {
  display: inline-flex;
  align-items: center;
  color: #f0f6fc;
  transition: opacity 0.2s;
}

.Header-logo:hover { opacity: 0.75; text-decoration: none; }
.Header-logo svg { fill: currentColor; }

.Header-link {
  color: #f0f6fc;
  text-decoration: none;
  font-weight: 600;
  margin-right: 16px;
  font-size: 14px;
  transition: color 0.2s;
}

.Header-link:last-child { margin-right: 0; }
.Header-link:hover { color: var(--color-blue); text-decoration: none; }

/* ── Main ── */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px 56px;
}

.container-xl {
  width: 100%;
  max-width: 640px;
}

/* ── Box / Card ── */
.Box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: 12px;
  box-shadow:
    0 0 0 1px rgba(27,31,36,0.1),
    0 8px 32px rgba(0,0,0,0.4),
    0 0 60px rgba(35, 134, 54, 0.06);
  animation: card-in 0.4s ease both;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.Box-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, #0d1f10 0%, #0d1117 100%);
  border-radius: 12px 12px 0 0;
  text-align: center;
}

.publisher-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(63, 185, 80, 0.12);
  border: 1px solid rgba(63, 185, 80, 0.3);
  border-radius: 20px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-green);
  margin-bottom: 8px;
}

.Box-title {
  font-size: 15px;
  font-weight: 600;
  color: #f0f6fc;
}

.Box-body {
  padding: 28px 28px 24px;
}

/* ── Title section ── */
.title-section {
  text-align: center;
  margin-bottom: 24px;
}

.shield-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: radial-gradient(circle, rgba(35,134,54,0.2) 0%, transparent 70%);
  border-radius: 50%;
  margin-bottom: 12px;
  animation: pulse-shield 2.5s ease-in-out infinite;
}

@keyframes pulse-shield {
  0%, 100% { box-shadow: 0 0 0 0 rgba(35,134,54,0.4); }
  50%       { box-shadow: 0 0 0 10px rgba(35,134,54,0); }
}

.h2 {
  font-size: 22px;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.text-muted {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* ── Progress ── */
.progress-section {
  margin-bottom: 20px;
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 13px;
}

.progress-label {
  color: var(--color-text-muted);
}

.progress-pct {
  color: var(--color-green);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.Progress {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background-color: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  height: 8px;
}

.Progress-item {
  height: 100%;
  width: 0%;
  border-radius: 8px;
  background: linear-gradient(90deg, #1a7f37 0%, #2ea043 50%, #3fb950 100%);
  box-shadow: 0 0 8px rgba(63,185,80,0.5);
  transition: width 0.3s ease;
  position: relative;
  overflow: hidden;
}

.Progress-item::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  to { left: 200%; }
}

.eta-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.eta-display strong {
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

/* ── Verification box ── */
.verification-box {
  background: linear-gradient(135deg, rgba(22, 52, 30, 0.8) 0%, rgba(13, 17, 23, 0.9) 100%);
  border: 1px solid rgba(63, 185, 80, 0.3);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(35, 134, 54, 0.12), inset 0 1px 0 rgba(63,185,80,0.08);
  animation: fade-in 0.5s ease 0.3s both;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.verification-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-green);
  margin-bottom: 16px;
}

.security-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.security-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(35, 134, 54, 0.12);
  border: 1px solid rgba(63, 185, 80, 0.2);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 500;
  color: #c9d1d9;
  transition: all 0.2s ease;
  cursor: default;
}

.security-badge:hover {
  background: rgba(63, 185, 80, 0.2);
  border-color: rgba(63, 185, 80, 0.4);
  color: #f0f6fc;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(35, 134, 54, 0.2);
}

/* ── Download section ── */
.download-section {
  text-align: center;
  animation: slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-2);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  text-align: left;
}

.file-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(88, 166, 255, 0.1);
  border-radius: 6px;
  flex-shrink: 0;
}

.file-name {
  font-size: 14px;
  font-weight: 600;
  color: #f0f6fc;
}

.file-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ── Button ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid rgba(63, 185, 80, 0.4);
  background: linear-gradient(180deg, #2ea043 0%, #238636 100%);
  color: #ffffff;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(35, 134, 54, 0.3), inset 0 1px 0 rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
  width: 100%;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 50%);
  border-radius: inherit;
}

.btn-primary:hover {
  background: linear-gradient(180deg, #3fb950 0%, #2ea043 100%);
  box-shadow: 0 4px 20px rgba(35, 134, 54, 0.55), 0 0 0 2px rgba(63, 185, 80, 0.25), inset 0 1px 0 rgba(255,255,255,0.15);
  transform: translateY(-2px);
  border-color: rgba(63, 185, 80, 0.6);
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(0px);
  box-shadow: 0 2px 8px rgba(35, 134, 54, 0.3);
}

.btn-primary svg {
  flex-shrink: 0;
}

/* click ripple */
.btn-primary .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  transform: scale(0);
  animation: ripple-out 0.55s ease-out forwards;
  pointer-events: none;
}

@keyframes ripple-out {
  to { transform: scale(4); opacity: 0; }
}

.redirect-message {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.redirect-message a {
  color: var(--color-blue);
  text-decoration: none;
}

.redirect-message a:hover {
  text-decoration: underline;
}

/* ── Note ── */
.note {
  padding: 12px 16px;
  border-radius: 8px;
  background-color: var(--color-surface-2);
  border: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: 16px;
}

.note a {
  color: var(--color-blue);
  text-decoration: none;
}

.note a:hover { text-decoration: underline; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--color-border);
  background-color: rgba(1, 4, 9, 0.6);
  color: var(--color-text-muted);
  padding: 24px 16px;
}

.footer-container {
  max-width: 1012px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 12px;
  transition: color 0.2s;
}

.footer-links a:hover { color: #c9d1d9; text-decoration: underline; }

/* ── Utility ── */
.mt-3 { margin-top: 16px; }