:root {
  --forest: #173e32;
  --forest-deep: #102c25;
  --forest-soft: #255546;
  --paper: #f7f3e9;
  --paper-white: #fffdf8;
  --sage: #dbe7d7;
  --gold: #c49a50;
  --gold-light: #e8c982;
  --ink: #173128;
  --muted: #54685c;
  --line: #cbd7c9;
  color: var(--paper);
  background: var(--forest-deep);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
}
html { scroll-behavior: smooth; }
body { background: var(--forest-deep); color: var(--paper); }
::selection { color: var(--forest-deep); background: var(--gold-light); }
input, textarea { caret-color: var(--forest); }
* { scrollbar-color: #8b9f8a transparent; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible,
summary:focus-visible, a:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.skip-link { background: var(--gold-light); color: var(--forest-deep); }
.page-shell { max-width: 1390px; padding-inline: clamp(18px, 4vw, 62px); }
.site-header { min-height: 92px; border-bottom-color: #d2b97c38; }
.brand { gap: 11px; color: var(--paper); font-family: Georgia, "Times New Roman", serif; font-size: 28px; font-weight: 400; letter-spacing: -.028em; }
.brand img { width: 47px; height: 47px; filter: drop-shadow(0 4px 9px #0003); }
.brand-period { color: var(--gold-light); }
.header-actions { gap: 14px; }
.tab-list { padding: 4px; background: #ffffff0b; border: 1px solid #ffffff23; }
.tab { min-width: 94px; padding: 10px 14px; color: #e0e8d8; font-size: 13px; font-weight: 600; }
.tab[aria-selected="true"] { background: var(--paper); color: var(--forest-deep); box-shadow: 0 2px 8px #07150f30; }
.locale-switch { display: inline-flex; align-items: center; padding: 2px; border: 1px solid #ffffff2b; border-radius: 16px; }
.locale-button { min-width: 44px; min-height: 44px; border: 0; border-radius: 13px; background: transparent; color: #d8e2d5; font-size: 11px; font-weight: 700; letter-spacing: .03em; }
.locale-button[aria-pressed="true"] { background: var(--gold-light); color: var(--forest-deep); }
.ai-button { min-height: 42px; padding: 9px 15px; border: 1px solid #d2b97c80; border-radius: 999px; background: transparent; color: var(--paper); font-size: 12px; font-weight: 650; }
.ai-button:hover { color: var(--forest-deep); background: var(--gold-light); border-color: var(--gold-light); }
.sparkle { color: var(--gold-light); }
.ai-button:hover .sparkle { color: var(--forest-deep); }
.intro { position: relative; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 360px); align-items: center; max-width: none; padding: clamp(34px, 3.8vw, 54px) 0 37px; overflow: hidden; }
.intro::after { content: ""; position: absolute; z-index: -1; top: 3%; right: 0; width: min(42vw, 440px); height: 100%; opacity: .47; pointer-events: none;
  background-image: radial-gradient(circle at 16% 20%, var(--gold-light) 1px, transparent 2px), radial-gradient(circle at 61% 11%, var(--gold) 1px, transparent 2px), radial-gradient(circle at 41% 49%, var(--gold-light) 1.2px, transparent 2.2px), radial-gradient(circle at 81% 32%, var(--gold) 1px, transparent 2px), radial-gradient(circle at 30% 78%, var(--gold) 1px, transparent 2px), radial-gradient(circle at 79% 73%, var(--gold-light) 1px, transparent 2px), radial-gradient(circle at 94% 57%, var(--gold) .8px, transparent 2px);
  background-size: 97px 109px, 123px 137px, 151px 163px, 173px 181px, 133px 149px, 89px 97px, 191px 197px;
  mask-image: radial-gradient(ellipse at 60% 48%, #000 8%, transparent 72%);
}
.intro::before { content: ""; position: absolute; z-index: 0; right: 30px; bottom: 10px; width: min(29vw, 330px); height: 85px; border-radius: 50%; pointer-events: none; background: radial-gradient(ellipse, #061c1666 0%, transparent 72%); filter: blur(12px); }
.intro-copy { position: relative; z-index: 1; }
.intro-unicorn { position: relative; z-index: 1; justify-self: end; width: min(100%, 350px); height: auto; margin: -18px 0 -25px; object-fit: contain; filter: drop-shadow(0 16px 21px #07180f55); }
.intro-mark { position: relative; width: 30px; height: 30px; margin-bottom: 25px; transform: rotate(-13deg); }
.intro-mark span { position: absolute; display: block; width: 13px; height: 13px; border-radius: 85% 85% 9% 85%; background: #b9d1b4; }
.intro-mark span:nth-child(1) { top: 0; left: 1px; transform: rotate(-35deg); }
.intro-mark span:nth-child(2) { top: 0; right: 0; transform: rotate(54deg); }
.intro-mark span:nth-child(3) { bottom: 0; left: 1px; transform: rotate(-125deg); }
.intro-mark span:nth-child(4) { bottom: 0; right: 0; transform: rotate(145deg); background: var(--gold-light); }
h1, .panel h2, dialog h2 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; letter-spacing: -.028em; }
h1 { max-width: 860px; margin: 0 0 19px; font-size: clamp(43px, 4.9vw, 70px); line-height: 1.03; }
h1 strong { color: var(--gold-light); font-weight: 600; }
.intro-copy > p { max-width: 590px; margin-bottom: 0; color: #d1ddd0; font-size: 16px; line-height: 1.62; }
.workspace-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 17px; align-items: stretch; }
.panel { border: 0; border-radius: 15px; box-shadow: 0 20px 42px #07180f31; }
.composer { padding: clamp(27px, 3.2vw, 44px); background: var(--paper-white); color: var(--ink); }
.output { position: relative; overflow: hidden; padding: clamp(27px, 3.2vw, 44px); background: var(--sage); color: var(--ink); }
.output::before { content: ""; position: absolute; inset: 0 0 auto auto; width: 52%; height: 210px; opacity: .45; pointer-events: none;
  background-image: radial-gradient(circle, var(--gold) .9px, transparent 2px), radial-gradient(circle, var(--gold) .55px, transparent 1.5px);
  background-size: 37px 43px, 59px 53px; background-position: 4px 10px, 26px 30px;
  mask-image: linear-gradient(110deg, transparent, #000 70%);
}
.output > * { position: relative; }
.panel-heading { margin-bottom: 32px; }
.step, .key-card-header, .site-footer { font-size: 10px; font-weight: 700; letter-spacing: .13em; }
.step { color: #6d775d; }
.panel-mark { color: var(--gold); font-size: 22px; }
.panel h2 { margin-bottom: 11px; font-size: clamp(28px, 2.5vw, 36px); }
.section-intro { color: var(--muted); font-size: 13px; line-height: 1.55; }
.composer .section-intro { margin-bottom: 28px; }
.field { margin-bottom: 21px; }
.field label, .label-row label { color: var(--ink); font-size: 13px; font-weight: 700; }
.field-hint, .optional { color: #637569; font-size: 11px; }
.field textarea, .field input, .field select, #result-output, #result-key, #result-token {
  width: 100%; border: 1px solid var(--line); border-radius: 9px; background: #fffefa; color: var(--ink); font-size: 14px; line-height: 1.55;
}
.field textarea { padding: 15px 16px; }
.field input, .field select { height: 47px; }
.field textarea::placeholder, .field input::placeholder, #result-output::placeholder, #result-key::placeholder { color: #66796d; opacity: 1; }
.file-picker { position: relative; display: flex; align-items: center; gap: 13px; min-height: 54px; padding: 5px; border: 1px solid var(--line); border-radius: 9px; background: #fffefa; cursor: pointer; }
.file-picker:hover { border-color: var(--forest-soft); }
.file-picker:has(input:focus-visible) { outline: 3px solid var(--gold); outline-offset: 3px; }
.file-picker input[type="file"] { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; margin: 0; padding: 0; opacity: 0; outline: none; cursor: pointer; }
.file-picker-action { display: inline-flex; align-items: center; gap: 8px; min-height: 42px; flex: none; padding: 0 13px; border-radius: 7px; background: var(--forest); color: var(--paper-white); font-size: 12px; font-weight: 700; }
.file-picker-action svg { width: 18px; height: 18px; }
.file-picker-name { min-width: 0; overflow: hidden; color: var(--muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.field textarea:focus, .field input:focus, .field select:focus, #result-output:focus { border-color: var(--forest-soft); background: #fffefa; }
.field-note { color: #52675b; font-size: 13px; line-height: 1.55; }
#decode-form .field-note { margin: 9px 0 17px; }
.source-preview { display: flex; flex-direction: column; gap: 4px; margin-top: 13px; padding-top: 12px; border-top: 1px solid var(--line); }
.source-preview-kicker { color: #65776a; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.source-preview strong { color: var(--ink); font-size: 13px; font-weight: 650; line-height: 1.35; }
.artwork-preview { flex-direction: row; align-items: center; gap: 13px; }
.artwork-preview img { flex: none; width: 60px; height: 60px; border-radius: 7px; object-fit: cover; }
.artwork-preview > div { display: flex; flex-direction: column; gap: 5px; }
.select-wrap::after { color: var(--forest); }
.carrier-choice { gap: 0; margin: 4px 0 25px; }
.carrier-choice legend { float: none; width: 100%; margin: 0 0 10px; font-size: 12px; }
.carrier-choice label { position: relative; justify-content: center; min-width: 132px; min-height: 44px; margin-right: 9px; padding: 9px 18px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--forest); font-size: 12px; }
.carrier-choice label:has(input:checked) { background: var(--forest); border-color: var(--forest); color: var(--paper-white); }
.carrier-choice input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; }
.carrier-choice label:has(input:focus-visible) { outline: 3px solid var(--gold); outline-offset: 3px; }
.regenerate-key { margin-top: 10px; color: var(--forest); font-size: 12px; }
.password-wrap input { padding-left: 16px; padding-right: 80px; }
.advanced { border-color: #dbe4d7; }
.advanced summary { padding: 17px 0; color: var(--forest); font-size: 12px; }
.advanced summary::before { color: var(--gold); }
.ai-mobile-anchor { display: none; }
.primary-button { border-radius: 9px; border-color: var(--forest); background: var(--forest); color: var(--paper-white); }
.primary-button:hover { background: var(--forest-deep); }
.seal-button { position: relative; min-height: 61px; padding: 8px 19px 8px 10px; gap: 13px; overflow: visible; box-shadow: 0 5px 0 #0c281f; transition: transform .24s ease, box-shadow .24s ease, background .24s ease; }
.seal-button:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 7px 0 #0c281f; }
.seal-button:active:not(:disabled), .seal-button[aria-busy="true"] { transform: translateY(4px); box-shadow: 0 1px 0 #0c281f; }
.seal-icon { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border: 1px solid #e8c98280; border-radius: 50%; background: #ffffff12; }
.seal-icon img { width: 28px; height: 28px; }
.seal-button .button-label { flex: 1; text-align: left; font-size: 14px; font-weight: 700; }
.seal-button .button-arrow { font-size: 19px; }
.form-status { color: var(--forest); font-size: 12px; }
.form-status.is-error { color: #9e3b31; }
.result-state { color: #435a4d; font-size: 11px; }
.status-dot { background: #7b927e; }
.output.has-result .status-dot { background: var(--forest); box-shadow: 0 0 0 3px #638e6940; }
.output-main { display: flex; flex-direction: column; }
.output-main .section-intro { margin-bottom: 21px; }
.empty-result { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 18px; flex: 1; min-height: 230px; margin: 0; padding: 34px; border-top: 1px solid #a7bea8; color: #4a6552; font-size: 15px; line-height: 1.5; text-align: center; }
.empty-result::before { content: ""; width: 44px; height: 44px; flex: none; background: url("logo.svg") center / contain no-repeat; opacity: .78; }
#result-output { min-height: 278px; padding: 18px; background: var(--paper-white); border-color: #adc2af; }
.image-placeholder { min-height: 278px; border: 1px dashed #91ab95; border-radius: 9px; background: #eef4e9; color: #536a59; }
.image-result img { border-color: #9eb79f; border-radius: 9px; }
.image-download { border-radius: 9px; background: var(--forest); font-size: 12px; }
.image-download:hover { background: var(--forest-deep); }
.image-result p, .source-credit { color: #455f4d; font-size: 11px; }
.source-credit a { color: var(--forest); }
.sharing-guidance { margin: 15px 0 0; padding: 13px 0 0; border-top: 1px solid #a7bea8; color: #34523d; font-size: 13px; line-height: 1.5; }
.output-actions { min-height: 61px; }
.copy-button { color: var(--forest); font-size: 12px; }
.copy-button:hover:not(:disabled), .regenerate-key:hover { color: #0a241b; text-decoration: underline; text-underline-offset: 3px; }
#copy-status { color: var(--forest); }
.token-card, .key-card { margin-top: 18px; padding: 20px 0 0; border: 0; border-top: 1px solid #a7bea8; border-radius: 0; background: transparent; }
.token-card label, .key-card-header { color: var(--forest); }
.token-card p, .key-card p { color: #435c4b; }
.token-card p, .key-card p, .image-result p, .source-credit { font-size: 12px; }
#result-token { min-height: 78px; padding: 12px; font-size: 11px; }
#result-key { background: var(--paper-white); border-color: #adc2af; padding-left: 16px; padding-right: 84px; }
.key-copy { border-color: #829e88; border-radius: 8px; color: var(--forest); font-size: 12px; }
.security-note { max-width: 900px; margin: 32px 0 75px; color: #cfdbc9; }
.security-icon { border-color: #c6d3be; color: #e6ecdc; }
.security-note p { font-size: 13px; line-height: 1.55; }
.security-note strong { color: var(--gold-light); }
.site-footer { border-top-color: #d2b97c38; color: #cbd6c5; font-size: 10px; text-transform: none; }
dialog { border: 0; border-radius: 15px; background: var(--paper-white); color: var(--ink); }
dialog::backdrop { background: #0a1e18df; }
dialog h2 { color: var(--ink); }
.dialog-symbol { color: var(--gold); }
dialog > p { color: var(--muted); }
.secondary-button { border-color: var(--line); background: transparent; color: var(--forest); }
.gold-puff { position: absolute; z-index: 4; top: 28px; left: 42%; width: 1px; height: 1px; pointer-events: none; }
.gold-puff .dust { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 8px #f0cb68; animation: dust-travel 720ms cubic-bezier(.16,1,.3,1) forwards; }
.gold-puff .puff-ring { position: absolute; width: 22px; height: 22px; border: 1px solid var(--gold); border-radius: 50%; animation: puff-expand 650ms cubic-bezier(.16,1,.3,1) forwards; }
@keyframes dust-travel { from { opacity: .9; transform: translate(0,0) scale(.6); } to { opacity: 0; transform: translate(var(--dx),var(--dy)) scale(1.4); } }
@keyframes puff-expand { from { opacity: .7; transform: translate(-50%,-50%) scale(.3); } to { opacity: 0; transform: translate(-50%,-50%) scale(6); } }
@media (max-width: 920px) { .workspace-grid { grid-template-columns: 1fr; align-items: start; } .output { min-height: 0; } .intro { grid-template-columns: minmax(0, 1fr) 230px; padding-top: 38px; } .intro-unicorn { width: 230px; } }
@media (max-width: 680px) {
  .site-header { min-height: 80px; padding: 15px 0; flex-wrap: wrap; }
  .brand { font-size: 25px; }
  .header-actions { width: 100%; justify-content: space-between; gap: 8px; }
  .tab { min-width: 72px; padding: 9px 10px; }
  .ai-mobile-anchor { display: block; margin: 10px 0 17px; }
  .ai-mobile-anchor .ai-button { min-height: 44px; padding: 8px 15px; border-color: #b8c9b7; color: var(--forest); font-size: 12px; }
  .locale-button { min-width: 44px; }
  .intro { display: block; padding: 30px 0 27px; }
  .intro-unicorn { position: absolute; top: 3px; right: 0; width: 90px; margin: 0; }
  .intro::before { display: none; }
  .intro-mark { margin-bottom: 23px; }
  h1 { margin-bottom: 13px; font-size: clamp(38px, 10vw, 50px); }
  .intro-copy > p { font-size: 14px; line-height: 1.5; }
  .intro::after { width: 62vw; opacity: .27; }
  .composer, .output { padding: 25px 23px; }
  .field-row { grid-template-columns: 1fr; }
  .security-note { margin-bottom: 49px; }
}
@media (max-width: 500px) { .key-card-body { flex-direction: column; align-items: stretch; } .key-copy { width: 100%; } }
@media (max-width: 370px) {
  .header-actions { justify-content: flex-start; }
  .locale-switch { margin-left: auto; }
}
@media (max-width: 380px) { .tab { min-width: 62px; } .header-actions { gap: 5px; } .carrier-choice label { min-width: 115px; } .intro-unicorn { top: -2px; width: 82px; } h1 { font-size: clamp(32px, 9vw, 36px); } }
@media (prefers-reduced-motion: reduce) { .gold-puff .dust, .gold-puff .puff-ring { animation: none; display: none; } }