:root {
  --bg: #f5f1ea;
  --surface: #fffdf9;
  --surface-strong: #ffffff;
  --text: #171717;
  --muted: #6e6a62;
  --line: #ded8cc;
  --accent: #111111;
  --accent-2: #256f65;
  --danger: #a33d3d;
  --shadow: 0 18px 50px rgba(38, 31, 24, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background:
    linear-gradient(135deg, rgba(37, 111, 101, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(146, 74, 54, 0.11), transparent 30%),
    var(--bg);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.workspace {
  display: grid;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0 4px;
}

.topbar h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1;
}

.topbar p {
  margin: 8px 0 0;
  color: var(--muted);
}

.settings-panel,
.prompt-panel,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 249, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.settings-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 180px));
  gap: 12px;
  justify-content: start;
  padding: 14px;
}

label {
  display: grid;
  gap: 7px;
}

label span,
.file-name,
.status {
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  background: var(--surface-strong);
  outline: none;
}

textarea {
  min-height: 76px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(37, 111, 101, 0.16);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  display: grid;
  grid-template-rows: auto minmax(360px, 1fr) auto;
  gap: 14px;
  min-height: 540px;
  padding: 18px;
}

.panel-heading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.step {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.panel h2 {
  margin: 0;
  font-size: 22px;
}

.dropzone,
.result-window {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 360px;
  overflow: hidden;
  border: 1px dashed #c9c0b2;
  border-radius: 8px;
  color: var(--muted);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.2)),
    repeating-linear-gradient(45deg, rgba(37, 111, 101, 0.05) 0 10px, transparent 10px 22px);
}

.dropzone.is-dragging {
  border-color: var(--accent-2);
  box-shadow: inset 0 0 0 2px rgba(37, 111, 101, 0.2);
}

.dropzone img,
.result-window img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.file-input {
  display: none;
}

.url-field {
  margin-top: -6px;
}

.primary-button,
.ghost-button,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  padding: 0 18px;
  font-weight: 800;
  text-decoration: none;
}

.primary-button {
  width: 100%;
  color: #fff;
  background: var(--accent);
}

.ghost-button,
.download-link {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.5);
}

.status {
  min-height: 20px;
  margin: 0;
}

.status.is-error {
  color: var(--danger);
}

.result-panel {
  grid-template-rows: auto minmax(360px, 1fr) auto auto;
}

.result-actions {
  position: absolute;
  right: 12px;
  bottom: 12px;
  left: 12px;
  display: grid;
  gap: 10px;
  width: auto;
  margin-top: 12px;
}

.prompt-panel {
  padding: 14px;
}

@media (max-width: 1100px) {
  .settings-panel {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }

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

@media (max-width: 640px) {
  .app-shell {
    padding: 14px;
  }

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

  .settings-panel {
    grid-template-columns: 1fr;
  }

  .panel {
    min-height: auto;
  }

  .dropzone,
  .result-window {
    min-height: 300px;
  }
}