:root {
  --bg: #f2efe7;
  --bg-soft: #dfe8e6;
  --ink: #1e2128;
  --ink-soft: #505866;
  --panel: rgba(255, 251, 243, 0.83);
  --line: rgba(30, 33, 40, 0.16);
  --accent: #0e7490;
  --accent-strong: #155e75;
  --secondary: #111827;
  --shadow: 0 18px 38px rgba(19, 24, 32, 0.15);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 5% 0%, #fde68a 0%, transparent 24%),
    radial-gradient(circle at 90% 96%, #bae6fd 0%, transparent 30%),
    linear-gradient(145deg, var(--bg), var(--bg-soft));
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  z-index: -1;
  border-radius: 999px;
  opacity: 0.22;
  filter: blur(12px);
  animation: floaty 18s ease-in-out infinite alternate;
}

.orb-one {
  width: 320px;
  height: 320px;
  background: #2dd4bf;
  top: -120px;
  left: -70px;
}

.orb-two {
  width: 420px;
  height: 420px;
  background: #fb923c;
  right: -150px;
  bottom: -160px;
  animation-delay: 1.2s;
}

.shell {
  width: min(1220px, 100% - 2rem);
  margin: 1.6rem auto 2.5rem;
  display: grid;
  gap: 1rem;
  animation: rise 420ms ease;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.eyebrow {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
}

h1 {
  margin: 0.2rem 0 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.65rem, 3vw, 2.75rem);
}

h2,
h3 {
  margin: 0 0 0.45rem;
}

p {
  margin: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
  transition: transform 170ms ease, box-shadow 170ms ease;
}

.panel:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 42px rgba(19, 24, 32, 0.18);
}

.intro-panel,
.upload-panel,
.preview-panel,
.compatibility-panel {
  padding: 1rem;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(300px, 390px) minmax(0, 1fr);
  gap: 1rem;
}

.actions-row {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.preview-actions {
  margin-top: 0.7rem;
}

.field-group {
  margin-top: 0.85rem;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 700;
  font-size: 0.92rem;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.76rem 0.82rem;
  font: inherit;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.75);
}

input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, white);
  border-color: transparent;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 0.66rem 0.95rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}

.btn:hover {
  filter: brightness(1.04);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-secondary {
  background: var(--secondary);
  color: #f9fafb;
}

.btn-ghost {
  border: 1px solid var(--line);
  background: transparent;
}

.status-pill {
  background: rgba(14, 116, 144, 0.18);
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
}

.dropzone {
  margin-top: 0.3rem;
  border: 2px dashed rgba(14, 116, 144, 0.5);
  border-radius: 16px;
  min-height: 180px;
  display: grid;
  place-content: center;
  gap: 0.45rem;
  text-align: center;
  padding: 1rem;
  cursor: pointer;
  background: linear-gradient(160deg, rgba(236, 253, 245, 0.7), rgba(219, 234, 254, 0.42));
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.dropzone strong {
  font-size: 1.04rem;
}

.dropzone span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.dropzone:hover,
.dropzone.drag-over {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(204, 251, 241, 0.82), rgba(191, 219, 254, 0.5));
}

.preview-header {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.mode-btn {
  padding-inline: 0.7rem;
  opacity: 0.82;
}

.mode-btn.active {
  background: var(--accent-strong);
  opacity: 1;
}

.iframe-wrap {
  margin-top: 0.8rem;
  margin-inline: auto;
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  transition: width 230ms ease, height 230ms ease, border-radius 230ms ease, box-shadow 230ms ease, padding 230ms ease;
}

.iframe-wrap.desktop {
  width: min(100%, 1200px);
  height: 700px;
  padding: 16px 16px 30px;
  border: 10px solid #1f2937;
  border-radius: 18px;
  background: linear-gradient(180deg, #111827, #1f2937);
  box-shadow: 0 24px 46px rgba(15, 23, 42, 0.26);
}

.iframe-wrap.tablet {
  width: min(100%, 768px);
  height: 980px;
  padding: 14px;
  border: 10px solid #374151;
  border-radius: 28px;
  background: linear-gradient(160deg, #4b5563, #374151);
  box-shadow: 0 18px 40px rgba(31, 41, 55, 0.27);
}

.iframe-wrap.phone {
  width: min(100%, 375px);
  height: 760px;
  padding: 12px;
  border: 12px solid #0f172a;
  border-radius: 42px;
  background: linear-gradient(180deg, #0f172a, #1e293b);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.34);
}

.iframe-wrap.desktop::after {
  content: "";
  position: absolute;
  width: 34%;
  height: 9px;
  left: 50%;
  bottom: 8px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(249, 250, 251, 0.34);
}

.iframe-wrap.tablet::after,
.iframe-wrap.phone::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(229, 231, 235, 0.45);
}

.iframe-wrap.tablet::after {
  width: 70px;
  height: 6px;
  bottom: 5px;
}

.iframe-wrap.phone::after {
  width: 92px;
  height: 6px;
  bottom: 6px;
}

.preview-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
  border-radius: inherit;
}

.preview-frame:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 65%, white);
  outline-offset: -2px;
}

.meta-stack {
  margin-top: 1rem;
  display: grid;
  gap: 0.65rem;
}

.meta-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
  padding: 0.65rem 0.75rem;
}

.meta-label {
  display: block;
  font-size: 0.76rem;
  color: var(--ink-soft);
  margin-bottom: 0.2rem;
}

code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
}

.qr-image {
  display: none;
  width: 170px;
  height: 170px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.qr-hint {
  margin-top: 0.35rem;
}

.preview-stage {
  position: relative;
}

.frame-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.88), rgba(243, 244, 246, 0.88));
  color: var(--ink-soft);
  font-weight: 700;
  letter-spacing: 0.01em;
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

.preview-stage.is-loading .frame-loading {
  opacity: 1;
}

.hint,
.tiny {
  color: var(--ink-soft);
}

.compatibility-panel .tip-row {
  margin-top: 0.6rem;
}

.tip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.42rem 0.72rem;
  background: rgba(255, 255, 255, 0.65);
  font-size: 0.85rem;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  background: #111827;
  color: #fff;
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  opacity: 0;
  transform: translateY(10px);
  transition: all 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .iframe-wrap.desktop,
  .iframe-wrap.tablet {
    width: 100%;
    height: 620px;
  }

  .iframe-wrap.phone {
    width: min(100%, 375px);
    height: 700px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(1220px, 100% - 1rem);
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .iframe-wrap.desktop,
  .iframe-wrap.tablet,
  .iframe-wrap.phone {
    width: 100%;
    height: 580px;
  }

  .iframe-wrap.phone {
    border-radius: 32px;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floaty {
  from {
    transform: translateY(-8px) translateX(-4px);
  }

  to {
    transform: translateY(11px) translateX(8px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.3;
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
  color: var(--ink-soft);
}

@media (max-width: 980px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .iframe-wrap.desktop,
  .iframe-wrap.tablet {
    width: 100%;
    height: 620px;
  }

  .iframe-wrap.phone {
    width: min(100%, 375px);
    height: 700px;
  }
}