:root {
  --bg: #050507;
  --bg-2: #0a0a12;
  --card: rgba(255, 255, 255, 0.045);
  --card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f6f6fb;
  --muted: #9aa0b4;
  --violet: #8b5cf6;
  --indigo: #6366f1;
  --blue: #3b82f6;
  --fuchsia: #d946ef;
  --grad: linear-gradient(120deg, #a78bfa, #818cf8, #60a5fa, #e879f9);
  --radius: 18px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(139, 92, 246, 0.35); }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---------- Animated background ---------- */
.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  mix-blend-mode: screen;
  animation: orbFloat 18s ease-in-out infinite;
}
.orb-1 {
  width: 560px; height: 560px;
  top: -180px; left: -120px;
  background: radial-gradient(circle at 30% 30%, #7c3aed, #4f46e5 55%, transparent 75%);
}
.orb-2 {
  width: 480px; height: 480px;
  top: 30%; right: -160px;
  background: radial-gradient(circle at 60% 40%, #0057ff, #3b82f6 50%, transparent 75%);
  animation-delay: -6s;
}
.orb-3 {
  width: 520px; height: 520px;
  bottom: -220px; left: 30%;
  background: radial-gradient(circle at 50% 50%, #c026d3, #a855f7 55%, transparent 78%);
  animation-delay: -12s;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.08); }
  66% { transform: translate(-30px, 25px) scale(0.95); }
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* ---------- Utility ---------- */
.grad {
  background: var(--grad);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradShift 6s ease-in-out infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.glass {
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.hidden { display: none !important; }

.link {
  color: #a5b4fc;
  text-decoration: underline;
  cursor: pointer;
  text-decoration-color: rgba(165, 180, 252, 0.4);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  border: none;
  border-radius: 12px;
  padding: 12px 22px;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.25s ease, background 0.25s ease, opacity 0.2s;
  user-select: none;
}
.btn:active { transform: scale(0.96); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none !important; }

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, #7c3aed, #4f46e5 50%, #0057ff);
  background-size: 180% 180%;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  animation: gradShift 6s ease-in-out infinite;
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 14px 44px rgba(99, 102, 241, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-2px); }

.btn-lg { padding: 16px 30px; font-size: 16px; border-radius: 14px; }
.btn-sm { padding: 9px 16px; font-size: 13px; border-radius: 10px; }
.btn-block { width: 100%; margin-top: 18px; }

.arrow { transition: transform 0.25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.icon-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 10px;
  display: grid; place-items: center;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.12); transform: scale(1.05); }
.icon-btn svg { width: 16px; height: 16px; }

.key-cap {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-strong);
  font-family: var(--mono);
  font-size: 14px;
  color: #a5b4fc;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(5, 5, 7, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  color: #fff;
  box-shadow: 0 4px 18px rgba(124, 58, 237, 0.5);
}
.logo-mark svg { width: 18px; height: 18px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  position: relative;
  transition: color 0.2s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 120px 28px 80px;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 34px;
}
.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}
.hero-title {
  font-size: clamp(44px, 7.5vw, 86px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.035em;
  margin-bottom: 26px;
}
.hero-sub {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 42px;
  min-height: 30px;
  line-height: 1.6;
}
.hero-sub .cursor { color: #a78bfa; animation: blink 0.9s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 70px; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.stat {
  min-width: 150px;
  padding: 22px 18px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.stat:hover { transform: translateY(-6px); border-color: rgba(139, 92, 246, 0.4); background: var(--card-hover); }
.stat strong {
  display: block;
  font-size: 34px;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat span { color: var(--muted); font-size: 14px; }

/* ---------- Sections ---------- */
.panel-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 90px 28px;
}
.section-head { text-align: center; max-width: 640px; margin: 0 auto 54px; }
.section-head h2 {
  font-size: clamp(30px, 4.5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.section-head p { color: var(--muted); font-size: 17px; line-height: 1.6; }

/* ---------- Share card ---------- */
.share-card {
  max-width: 640px;
  margin: 0 auto;
  border-radius: 22px;
  padding: 12px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}
.tabs {
  display: flex;
  gap: 6px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 26px;
}
.tab {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-family: var(--font);
  font-weight: 600;
  font-size: 15px;
  border-radius: 10px;
  cursor: pointer;
  transition: color 0.25s, background 0.25s, box-shadow 0.25s;
}
.tab svg { width: 18px; height: 18px; }
.tab.active {
  color: #fff;
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.35), rgba(79, 70, 229, 0.35));
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}
.tab-panel { padding: 8px 8px 22px; }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: 16px;
  padding: 46px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  background: rgba(255, 255, 255, 0.015);
}
.dropzone:hover, .dropzone.dragover {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.07);
}
.dropzone.dragover { transform: scale(1.01); }
.dz-icon {
  width: 62px; height: 62px;
  margin: 0 auto 18px;
  display: grid; place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #a5b4fc;
  animation: dzBob 2.6s ease-in-out infinite;
}
@keyframes dzBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.dz-icon svg { width: 28px; height: 28px; }
.dropzone h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.dropzone p { color: var(--muted); font-size: 15px; }

.dz-file {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}
.file-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: grid; place-items: center;
  font-size: 24px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.15);
}
.file-meta { flex: 1; min-width: 0; }
.file-name { font-weight: 600; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-size { color: var(--muted); font-size: 13px; margin-top: 3px; }

/* Progress */
.progress { margin-top: 18px; }
.progress-bar {
  height: 8px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.progress-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: var(--grad);
  transition: width 0.2s ease;
}
.progress-label { color: var(--muted); font-size: 13px; margin-top: 8px; text-align: center; }

/* Text panel */
.code-area {
  width: 100%;
  min-height: 240px;
  resize: vertical;
  background: rgba(5, 5, 10, 0.6);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  color: #d8e0f0;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.65;
  padding: 18px;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  tab-size: 2;
}
.code-area:focus {
  border-color: #8b5cf6;
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
}
.editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.char-count { color: var(--muted); font-size: 13px; font-family: var(--mono); }
.toolbar-actions { display: flex; gap: 10px; }

/* Result */
.result {
  position: relative;
  text-align: center;
  padding: 40px 20px 44px;
  border-radius: 16px;
  overflow: hidden;
}
.result-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 50% 50%, rgba(124, 58, 237, 0.28), transparent 60%);
  animation: resultPulse 3s ease-in-out infinite;
}
@keyframes resultPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}
.result > * { position: relative; }
.result-icon {
  width: 58px; height: 58px;
  margin: 0 auto 18px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #34d399, #10b981);
  color: #052e16;
  box-shadow: 0 10px 30px rgba(52, 211, 153, 0.4);
  animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.result-icon svg { width: 26px; height: 26px; }
@keyframes popIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.result h3 { font-size: 22px; font-weight: 800; margin-bottom: 18px; }

.code-display {
  font-family: var(--mono);
  font-size: clamp(54px, 9vw, 76px);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-indent: 0.18em;
  background: var(--grad);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradShift 4s linear infinite, popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  margin-bottom: 6px;
}
.result-meta { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.countdown {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.countdown span {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  color: #a5b4fc;
}
.countdown small { color: var(--muted); font-size: 12px; }
.result-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- Receive ---------- */
.receive-card {
  max-width: 560px;
  margin: 0 auto;
  border-radius: 22px;
  padding: 34px;
  text-align: center;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}
.receive-input-wrap { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.receive-input {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  text-align: center;
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: var(--text);
  background: rgba(5, 5, 10, 0.6);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  padding: 18px 12px;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.receive-input:focus { border-color: #8b5cf6; box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15); }

.receive-loading { display: flex; align-items: center; justify-content: center; gap: 12px; color: var(--muted); margin-top: 26px; }
.spinner {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 3px solid rgba(139, 92, 246, 0.25);
  border-top-color: #8b5cf6;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.receive-result { margin-top: 26px; text-align: left; }
.recv-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  animation: popIn 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.recv-file-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.recv-file-icon {
  width: 52px; height: 52px;
  flex-shrink: 0;
  display: grid; place-items: center;
  font-size: 26px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.recv-file-name { font-weight: 700; font-size: 16px; word-break: break-all; }
.recv-file-size { color: var(--muted); font-size: 13px; margin-top: 4px; }
.recv-text {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  background: rgba(5, 5, 10, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 16px;
  color: #d8e0f0;
}
.recv-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.recv-error {
  padding: 20px;
  border-radius: 14px;
  background: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #fda4af;
  text-align: center;
  animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  position: relative;
  padding: 38px 28px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  text-align: center;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s, box-shadow 0.35s;
  overflow: hidden;
}
.step:hover {
  transform: translateY(-8px);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}
.step-num {
  position: absolute;
  top: 14px; right: 20px;
  font-family: var(--mono);
  font-size: 44px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.05);
}
.step-icon { font-size: 42px; margin-bottom: 20px; display: inline-block; animation: dzBob 3s ease-in-out infinite; }
.step h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 15px; line-height: 1.6; }

/* ---------- Features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  padding: 30px 26px;
  border-radius: var(--radius);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s, box-shadow 0.35s, background 0.35s;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 246, 0.4);
  background: var(--card-hover);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.4);
}
.f-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  font-size: 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(59, 130, 246, 0.18));
  border: 1px solid rgba(139, 92, 246, 0.3);
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 14.5px; line-height: 1.6; }

/* ---------- CTA ---------- */
.cta-section {
  max-width: 1180px;
  margin: 40px auto 0;
  padding: 90px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  inset: -50% -20%;
  background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.22), transparent 65%);
  pointer-events: none;
}
.cta-section h2 { font-size: clamp(32px, 5vw, 54px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; position: relative; }
.cta-section p { color: var(--muted); font-size: 18px; margin-bottom: 34px; position: relative; }
.cta-section .btn { position: relative; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 60px 28px; margin-top: 40px; }
.footer-inner { max-width: 1180px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; gap: 18px; align-items: center; }
.footer p { color: var(--muted); font-size: 15px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer small { color: rgba(154, 160, 180, 0.6); font-size: 13px; }

/* ---------- Multi-file dropzone ---------- */
.dz-files { display: flex; flex-direction: column; gap: 10px; }
.dz-files .dz-file {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  animation: popIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.dz-total {
  margin-top: 4px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  font-family: var(--mono);
}

/* ---------- Receive: file list & inline preview ---------- */
.recv-head {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 16px;
  text-align: center;
  font-family: var(--mono);
}
.file-list { display: flex; flex-direction: column; gap: 14px; }
.file-row {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
  animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.file-row-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
}
.file-row-meta { flex: 1; min-width: 0; }
.preview-box {
  border-top: 1px solid var(--border);
  background: rgba(5, 5, 10, 0.55);
  padding: 12px;
  display: grid;
  place-items: center;
}
.preview-media {
  max-width: 100%;
  max-height: 380px;
  border-radius: 10px;
  background: #000;
  object-fit: contain;
}
.preview-frame {
  width: 100%;
  height: 480px;
  border: none;
  border-radius: 10px;
  background: #fff;
}
.preview-text {
  width: 100%;
  max-height: 320px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  background: rgba(5, 5, 10, 0.6);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: #d8e0f0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: rgba(20, 20, 30, 0.92);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s;
  z-index: 100;
  opacity: 0;
  max-width: 90vw;
  text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.error { border-color: rgba(244, 63, 94, 0.5); }

/* ---------- Confetti ---------- */
.confetti-piece {
  position: fixed;
  top: -10px;
  z-index: 90;
  width: 9px; height: 16px;
  border-radius: 2px;
  pointer-events: none;
  animation: confettiFall linear forwards;
}
@keyframes confettiFall {
  to { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .steps, .feature-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero { padding-top: 80px; }
}
@media (max-width: 560px) {
  .receive-input { max-width: none; }
  .hero-stats { gap: 10px; }
  .stat { min-width: 130px; padding: 16px 12px; }
}