*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --green: #206f3a;
  --green-dark: #15562b;
  --orange: #c9570f;
  --ink: #121212;
  --muted: #555;
  --line: #d9ded8;
  --panel: #fbfdf9;
  --soft: #eef3ec;
  --danger: #8a4b00;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

.app-shell {
  width: min(100%, 780px);
  margin: 0 auto;
  padding: 18px 18px calc(110px + env(safe-area-inset-bottom));
}

.page-header {
  margin-bottom: 14px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 4px;
  font-size: 32px;
  line-height: 1.1;
}

h2 {
  margin-bottom: 14px;
  font-size: 21px;
}

.intro,
.small {
  color: var(--muted);
}

.intro {
  margin-bottom: 0;
}

.student-banner {
  margin-top: 12px;
  border: 1px solid #b7dfbd;
  border-left: 5px solid var(--green);
  border-radius: 8px;
  background: #f2f7f1;
  padding: 12px;
  color: #183f25;
  font-weight: 700;
}

label,
summary {
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font: inherit;
  background: #fff;
}

textarea {
  resize: vertical;
}

.panel,
.staff-card,
.file-summary,
.help-block {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px;
}

.primary-panel {
  margin-top: 16px;
}

.staff-card {
  background: #fff;
}

.staff-card summary,
.help-block summary {
  cursor: pointer;
}

.staff-login,
.staff-options {
  margin-top: 12px;
}

.inline-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-top: 6px;
}

.form-message,
.status {
  margin-top: 10px;
  font-weight: 700;
  white-space: pre-line;
}

.status {
  color: var(--green-dark);
}

.warning {
  color: var(--danger);
}

.action-grid {
  display: grid;
  gap: 10px;
}

.student-purpose {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.student-identity {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
  border: 1px solid #b7dfbd;
  border-left: 5px solid var(--green);
  border-radius: 8px;
  background: #f2f7f1;
  padding: 12px;
}

.onboarding-prompt {
  border: 1px solid #d7ddd4;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  line-height: 1.4;
}

.onboarding-prompt p {
  margin: 6px 0 10px;
}

.prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.prompt-actions a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  border-radius: 7px;
  padding: 8px 10px;
  color: #fff;
  background: var(--green);
  font-weight: 700;
  text-decoration: none;
}

.prompt-actions a:nth-child(2) {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.upload-action,
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  padding: 12px 14px;
  color: #fff;
  background: var(--green);
  font: inherit;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.upload-action-secondary {
  background: var(--orange);
}

.upload-action-dark,
.button-dark {
  background: #3f3f3f;
}

.upload-action-light,
.button-soft {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--soft);
}

.button-primary {
  width: 100%;
  background: var(--green);
}

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

.visually-hidden-file {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.selected-file {
  margin: 12px 0 0;
  color: var(--green-dark);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.crop-section {
  margin-top: 14px;
}

.crop-note {
  display: grid;
  gap: 3px;
  margin-bottom: 10px;
  border: 1px solid #b7dfbd;
  border-left: 5px solid var(--green);
  border-radius: 8px;
  background: #f2f7f1;
  padding: 10px 12px;
  color: #183f25;
}

.crop-note span {
  color: #31533b;
}

.crop-workspace {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #777;
}

#image {
  display: block;
  max-width: 100%;
  max-height: 54vh;
  margin: 0 auto;
}

.cropper-container {
  max-width: 100% !important;
}

.crop-toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

.file-summary {
  line-height: 1.5;
}

.recent-upload-list {
  display: grid;
  gap: 10px;
}

.recent-upload-card {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}

.recent-upload-card img {
  width: 86px;
  height: 86px;
  border-radius: 8px;
  object-fit: cover;
  background: #eee;
}

.recent-upload-meta {
  min-width: 0;
  font-size: 14px;
  line-height: 1.4;
}

.recent-upload-meta a {
  color: var(--green-dark);
  font-weight: 700;
}

.status-badge {
  display: inline-block;
  margin-top: 4px;
  border-radius: 999px;
  padding: 3px 7px;
  background: var(--soft);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 700;
}

.search-results {
  margin-top: 10px;
}

.result-item,
.selected-item {
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}

.result-item {
  cursor: pointer;
}

.result-item:hover {
  background: #f0f6ff;
}

.selected-item {
  border-color: #2a6df4;
  background: #eef4ff;
}

.sticky-actions {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 10;
  display: grid;
  gap: 8px;
  width: min(100%, 780px);
  margin: 0 auto;
  padding: 10px 18px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.help-block {
  background: #fff;
}

.help-content {
  margin-top: 10px;
  color: #333;
}

.help-content p:last-child {
  margin-bottom: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 520px) {
  .app-shell {
    padding: 14px 14px calc(104px + env(safe-area-inset-bottom));
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 19px;
  }

  .panel,
  .staff-card,
  .file-summary,
  .help-block {
    padding: 12px;
  }

  .inline-form {
    grid-template-columns: 1fr;
  }

  .crop-toolbar {
    grid-template-columns: 1fr;
  }

  #image {
    max-height: 46vh;
  }

  .sticky-actions {
    padding-right: 14px;
    padding-left: 14px;
  }
}