:root {
  --midnight: #000129;
  --ink-700: #202342;
  --ink-500: #5d627e;
  --ink-300: #aab0c2;
  --ink-200: #cdd2de;
  --ink-100: #e8ebf1;
  --sand: #f3ede1;
  --white: #ffffff;
  --emerald: #003216;
  --saudia: #006937;
  --future: #b7f2b1;
  --sunrise: #e77f00;
  --danger: #7d1822;
  --control: 44px;
  font-family: Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--sand);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--sand);
  color: var(--midnight);
  font-size: 16px;
  line-height: 1.45;
}

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

button {
  min-height: var(--control);
  border: 1px solid var(--midnight);
  background: var(--white);
  color: var(--midnight);
  font-weight: 700;
  border-radius: 0;
}

button:active {
  transform: translateY(1px);
}

input,
select,
textarea {
  width: 100%;
  min-height: var(--control);
  padding: 10px 12px;
  border: 1px solid var(--ink-200);
  border-radius: 0;
  background: var(--white);
  color: var(--midnight);
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink-500);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: var(--white);
  font-size: 22px;
  line-height: 1.1;
}

h2 {
  font-size: 20px;
  line-height: 1.15;
}

.app {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 14px calc(24px + env(safe-area-inset-bottom));
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin: 0 -14px 12px;
  padding: calc(14px + env(safe-area-inset-top)) 14px 14px;
  background: var(--midnight);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.brand-mark {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--future);
  background: var(--emerald);
  color: var(--future);
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
}

.eyebrow {
  font-family: "Courier New", monospace;
  color: var(--ink-500);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.app-header .eyebrow {
  color: var(--ink-300);
}

.panel {
  display: grid;
  gap: 14px;
  margin-bottom: 12px;
  padding: 16px;
  border: 1px solid var(--ink-200);
  background: var(--white);
}

.hero-panel {
  margin-top: 12px;
}

.title-input {
  margin-top: 6px;
  padding: 0;
  min-height: 38px;
  border: 0;
  border-bottom: 1px solid var(--ink-200);
  font-size: 28px;
  font-weight: 800;
  line-height: 1.12;
}

.status-row,
.button-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.tabs {
  position: sticky;
  top: calc(87px + env(safe-area-inset-top));
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 0 -14px 12px;
  padding: 0 14px;
  background: var(--sand);
}

.tab {
  min-height: 42px;
  border-color: var(--ink-200);
  background: var(--white);
  color: var(--ink-500);
}

.tab.active,
.primary {
  background: var(--midnight);
  color: var(--white);
}

.secondary {
  background: var(--white);
  color: var(--midnight);
}

.compact {
  min-height: 36px;
  padding: 6px 10px;
  font-size: 13px;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.section-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.head-actions {
  display: grid;
  gap: 8px;
  min-width: 150px;
}

.stack {
  display: grid;
  gap: 12px;
}

.hint {
  color: var(--ink-500);
  font-size: 13px;
}

.block-card,
.attachment-card {
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--ink-200);
  background: #fbfbfd;
}

.asset-library {
  display: grid;
  gap: 10px;
}

.asset-empty {
  padding: 12px;
  border: 1px dashed var(--ink-200);
  color: var(--ink-500);
  font-size: 13px;
}

.asset-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--ink-200);
  background: #fbfbfd;
}

.asset-thumb {
  display: grid;
  width: 58px;
  height: 44px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--ink-200);
  background: var(--white);
}

.asset-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.asset-meta {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.asset-meta strong {
  text-transform: capitalize;
}

.asset-meta span {
  overflow: hidden;
  color: var(--ink-500);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asset-actions {
  display: grid;
  gap: 6px;
  grid-template-columns: 1fr 1fr;
}

.block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.block-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.block-actions button {
  min-width: 38px;
  min-height: 34px;
  padding: 6px 8px;
}

.inline-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.validation-list {
  display: grid;
  gap: 8px;
}

.validation-item {
  padding: 10px 12px;
  border-left: 4px solid var(--sunrise);
  background: #fff8ee;
  color: var(--midnight);
}

.validation-item.error {
  border-left-color: var(--danger);
  background: #fff1f3;
}

.email-shell {
  overflow: hidden;
  border: 1px solid var(--ink-200);
  background: var(--white);
}

iframe {
  display: block;
  width: 100%;
  min-height: 680px;
  border: 0;
  background: var(--sand);
}

.code-box {
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  white-space: pre;
}

.toast {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: calc(14px + env(safe-area-inset-bottom));
  z-index: 10;
  padding: 13px 14px;
  border: 1px solid var(--future);
  background: var(--midnight);
  color: var(--white);
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity .16s ease, transform .16s ease;
}

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

[dir="rtl"] {
  text-align: right;
}

@media (max-width: 520px) {
  .status-row,
  .button-grid,
  .inline-grid {
    grid-template-columns: 1fr;
  }

  .tabs {
    top: calc(87px + env(safe-area-inset-top));
  }

  .tab {
    font-size: 13px;
  }

  .section-head {
    display: grid;
  }

  .head-actions {
    grid-template-columns: 1fr auto;
  }

  .asset-item {
    grid-template-columns: 50px minmax(0, 1fr);
  }

  .asset-actions {
    grid-column: 1 / -1;
  }
}