:root {
  --bg: #060a14;
  --bg-panel: rgba(16, 24, 43, 0.55);
  --bg-panel-solid: #101728;
  --text: #F4EFE4;
  --text-dim: #8B93A8;
  --accent: #E8B75D;
  --accent-2: #C87F5C;
  --accent-glow: rgba(232, 183, 93, 0.25);
  --line: rgba(244, 239, 228, 0.10);
  --moon-light: #F6EEDC;
  --moon-shadow: #050810;
  --radius: 16px;
  --serif: 'Noto Serif Georgian', serif;
  --sans: 'Noto Sans Georgian', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100%;
  overflow-x: hidden;
}

/* ---------------- Backdrop: layered glow + stars ---------------- */
.stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 900px 600px at 78% 20%, rgba(232, 183, 93, 0.10), transparent 60%),
    radial-gradient(ellipse 700px 500px at 15% 85%, rgba(120, 100, 200, 0.08), transparent 60%),
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(255,255,255,.7), transparent),
    radial-gradient(1px 1px at 28% 8%, rgba(255,255,255,.4), transparent),
    radial-gradient(1.5px 1.5px at 45% 35%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 62% 12%, rgba(255,255,255,.35), transparent),
    radial-gradient(2px 2px at 70% 55%, rgba(255,255,255,.55), transparent),
    radial-gradient(1px 1px at 85% 28%, rgba(255,255,255,.4), transparent),
    radial-gradient(1.5px 1.5px at 92% 68%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 8% 60%, rgba(255,255,255,.35), transparent),
    radial-gradient(1px 1px at 35% 78%, rgba(255,255,255,.4), transparent),
    radial-gradient(1.5px 1.5px at 55% 90%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 20% 45%, rgba(255,255,255,.3), transparent);
  background-size: 100% 100%;
}

.stars::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1.5px 1.5px at 18% 30%, #fff, transparent),
    radial-gradient(1px 1px at 50% 50%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 80% 40%, #fff, transparent),
    radial-gradient(1px 1px at 65% 75%, #fff, transparent);
  background-size: 100% 100%;
  animation: twinkle 4.5s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: .25; }
  50% { opacity: .9; }
}

/* ---------------- Layout ---------------- */
.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px calc(52px + env(safe-area-inset-right, 0px)) 30px calc(52px + env(safe-area-inset-left, 0px));
}

.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  background: linear-gradient(120deg, var(--text) 40%, var(--accent) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tagline {
  color: var(--text-dim);
  font-size: 0.82rem;
  border: 1px solid var(--line);
  padding: 7px 16px;
  border-radius: 100px;
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(6px);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-link {
  color: var(--text);
  font-size: 0.82rem;
  font-family: var(--sans);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 7px 16px;
  border-radius: 100px;
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(6px);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover { border-color: var(--accent); color: var(--accent); }

.hero {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 30px 52px 20px;
  flex-wrap: wrap;
}

.hero.centered {
  flex-direction: column;
  text-align: center;
  padding-top: 64px;
}

.hero-copy { flex: 1 1 420px; min-width: 280px; }
.hero-copy.centered { max-width: 500px; }

h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.2vw + 1rem, 2.9rem);
  line-height: 1.16;
  margin: 0 0 22px;
  letter-spacing: -0.01em;
}

.filename-title { font-size: clamp(1.3rem, 3vw + 0.8rem, 1.8rem); word-break: break-word; }

.accent {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sub {
  color: var(--text-dim);
  font-size: 1.04rem;
  line-height: 1.65;
  max-width: 440px;
}

/* ---------------- Moon: real crescent via two overlapping discs ---------------- */
.moon-wrap {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  margin: 20px 0;
  perspective: 800px;
}

.moon {
  position: relative;
  width: clamp(160px, 34vw, 270px);
  height: clamp(160px, 34vw, 270px);
  border-radius: 50%;
  cursor: pointer;
  filter: drop-shadow(0 0 55px var(--accent-glow));
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.moon:hover { filter: drop-shadow(0 0 75px rgba(232, 183, 93, 0.4)); }

.moon-mask {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.45), inset 10px -10px 30px rgba(0,0,0,0.25);
}

.moon-dark,
.moon-light {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.moon-dark {
  background:
    radial-gradient(circle at 30% 25%, #1c2540 0%, #0a0e1c 55%, #050810 100%);
}

.moon-light {
  background:
    radial-gradient(circle at 32% 26%, #FFFDF6 0%, var(--moon-light) 40%, #DCCFA8 78%, #C9BB8E 100%);
  transition: transform 0.8s cubic-bezier(.4,0,.2,1);
}

/* crater texture, layered on both faces */
.moon-light::before, .moon-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 25% 60%, rgba(0,0,0,0.10) 0%, transparent 9%),
    radial-gradient(circle at 60% 70%, rgba(0,0,0,0.08) 0%, transparent 7%),
    radial-gradient(circle at 70% 30%, rgba(0,0,0,0.09) 0%, transparent 10%),
    radial-gradient(circle at 40% 20%, rgba(0,0,0,0.06) 0%, transparent 6%),
    radial-gradient(circle at 80% 55%, rgba(0,0,0,0.07) 0%, transparent 8%);
}

.moon-label {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: #2b2410;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 20px;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.moon-label.static { color: var(--text); mix-blend-mode: normal; }
.new-moon .moon-label { color: var(--text-dim); mix-blend-mode: normal; }

.moon.dragover .moon-mask { box-shadow: inset 0 0 40px rgba(0,0,0,0.45), 0 0 0 3px var(--accent); }

/* ---------------- Panels ---------------- */
.panel {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 24px auto 0;
  padding: 0 24px;
}

.panel-inner {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 34px;
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.panel-file { font-weight: 600; margin: 0 0 16px; word-break: break-word; }

.panel-label {
  color: var(--text-dim);
  font-size: 0.82rem;
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.progress-track {
  height: 8px;
  background: rgba(255,255,255,0.07);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  transition: width 0.2s ease;
}

.panel-status { color: var(--text-dim); font-size: 0.9rem; margin: 14px 0 0; }

.link-row, .email-row { display: flex; gap: 10px; margin-bottom: 10px; }

input[type="text"], input[type="email"] {
  flex: 1;
  min-width: 0;
  min-height: 46px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
}

input:focus { outline: none; border-color: rgba(232, 183, 93, 0.5); }
input::placeholder { color: var(--text-dim); }

button, .download-btn {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #211a08;
  border: none;
  border-radius: 10px;
  padding: 13px 22px;
  min-height: 46px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(232, 183, 93, 0.18);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover, .download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(232, 183, 93, 0.3);
}
button:active, .download-btn:active { transform: translateY(0); }

.countdown {
  color: var(--accent);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 18px 0;
  letter-spacing: 0.01em;
}

.email-status { color: var(--text-dim); font-size: 0.85rem; margin-top: 6px; }

/* ---------------- Compressor panel ---------------- */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.field label {
  display: block;
  color: var(--text-dim);
  font-size: 0.76rem;
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.field select,
.field input[type="number"] {
  width: 100%;
  min-height: 46px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
  appearance: none;
}

.field select:focus,
.field input:focus {
  outline: none;
  border-color: rgba(232, 183, 93, 0.5);
}

.full-width { width: 100%; }

.compress-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 20px;
  font-size: 0.92rem;
  color: var(--text-dim);
}

.compress-stats strong { color: var(--text); }

.reduction-badge {
  color: #201a08;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  padding: 4px 12px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.82rem;
}

@media (max-width: 720px) {
  .settings-grid { grid-template-columns: 1fr; }
}

.foot {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 64px 24px 34px;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 960px) {
  .hero { gap: 32px; }
  .panel-inner { padding: 26px 28px; }
}

@media (max-width: 720px) {
  .topbar { padding: 20px calc(22px + env(safe-area-inset-right, 0px)) 20px calc(22px + env(safe-area-inset-left, 0px)); }
  .hero { padding: 18px 22px 12px; gap: 24px; }
  .hero-copy { min-width: 0; }
  .sub { max-width: 100%; }
  .panel { padding: 0 18px; }
  .panel-inner { padding: 22px 22px; }
  .link-row, .email-row {
    flex-direction: column;
    align-items: stretch;
  }
  .link-row button, .email-row button { width: 100%; }
  .foot { padding: 40px 20px 28px; }
}

@media (max-width: 420px) {
  .brand { font-size: 1.12rem; }
  .tagline { font-size: 0.74rem; padding: 6px 12px; }
  h1 { margin-bottom: 16px; }
  .sub { font-size: 0.96rem; }
  .moon-label { font-size: 0.82rem; padding: 14px; }
}

@media (min-width: 1400px) {
  .hero { max-width: 1280px; gap: 64px; }
  .panel { max-width: 700px; }
}

/* Landscape phones: keep the moon from crowding out the form */
@media (max-height: 480px) and (orientation: landscape) {
  .moon { width: 130px; height: 130px; }
  .hero { padding-top: 16px; }
}

/* Avoid stuck :hover states on touch devices */
@media (hover: none) {
  button:hover, .download-btn:hover, .moon:hover {
    transform: none;
    box-shadow: 0 6px 20px rgba(232, 183, 93, 0.18);
    filter: drop-shadow(0 0 55px var(--accent-glow));
  }
}

/* Safe-area padding for notched phones */
.foot {
  padding-bottom: max(34px, env(safe-area-inset-bottom));
}

@media (prefers-reduced-motion: reduce) {
  .moon-light, button, .download-btn, .moon { transition: none; animation: none; }
  .stars::after { animation: none; }
}