@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
    --ink: #19181c;
    --muted: #716e76;
    --line: #dfdcd5;
    --paper: #f7f4ee;
    --card: rgba(255, 255, 255, 0.86);
    --purple: #6657d8;
    --purple-dark: #5547c1;
    --purple-soft: #eeebff;
    --green: #207a5c;
    --red: #bd3f4d;
    --shadow: 0 24px 70px rgba(42, 37, 54, 0.09);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 280px;
    min-height: 100vh;
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16.5px;
    -webkit-font-smoothing: antialiased;
}

button,
input,
select {
    font: inherit;
}

button,
summary,
.upload-zone {
    -webkit-tap-highlight-color: transparent;
}

button {
    color: inherit;
}

.paper-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    opacity: .55;
    background-image:
        linear-gradient(rgba(32, 28, 40, .025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(32, 28, 40, .025) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.site-header {
    height: 76px;
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(25, 24, 28, .1);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--ink);
    font-family: 'Space Mono', monospace;
    font-size: 1.13rem;
    font-weight: 700;
    text-decoration: none;
}

.brand-mark {
    width: 40px;
    height: 40px;
    display: block;
}

.brand-mark img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-link {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border: 1px solid #d8d5ce;
    border-radius: 50%;
    color: var(--ink);
    background: rgba(255, 255, 255, .5);
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.icon-link:hover {
    transform: translateY(-2px);
    border-color: #ada8b5;
    background: #fff;
}

.icon-link svg,
.text-field svg,
.contrast-warning svg,
.upload-zone svg,
.reset-button svg,
.preview-note svg,
.download-button svg {
    width: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.icon-link svg {
    width: 17px;
}

.icon-link .brand-icon {
    fill: currentColor;
    stroke: none;
}

.shell {
    max-width: 1240px;
    margin: 0 auto;
    padding: 70px 30px 90px;
}

.hero {
    max-width: 690px;
    margin-bottom: 48px;
}

.eyebrow {
    margin: 0 0 15px;
    color: var(--purple);
    font: 700 .72rem 'Space Mono', monospace;
    letter-spacing: .16em;
}

.hero h1 {
    margin: 0;
    color: var(--purple);
    font: 700 clamp(2.4rem, 5.8vw, 4.9rem)/.98 'DM Sans', sans-serif;
    letter-spacing: -.065em;
    white-space: nowrap;
}

.stamp-line {
    position: relative;
    white-space: nowrap;
}

.stamp-line::after {
    content: '';
    position: absolute;
    left: -2px;
    right: -5px;
    bottom: 2px;
    height: 10px;
    border-bottom: 3px solid currentColor;
    border-radius: 55% 45% 60% 40%;
    transform: rotate(-1.2deg) skewX(-7deg);
    opacity: .55;
    z-index: -1;
}

.workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr);
    gap: 30px;
    align-items: start;
}

.config-panel,
.preview-card {
    border: 1px solid rgba(25, 24, 28, .12);
    border-radius: 19px;
    background: var(--card);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.config-panel {
    overflow: hidden;
}

.config-section {
    padding: 31px 34px 34px;
    border-bottom: 1px solid var(--line);
}

.section-heading {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    margin-bottom: 27px;
}

.step {
    flex: 0 0 auto;
    color: var(--purple);
    font: 700 .7rem 'Space Mono', monospace;
    line-height: 1.8;
}

.section-heading h2,
.preview-heading h2 {
    margin: 0 0 4px;
    font-size: 1.22rem;
    letter-spacing: -.025em;
}

.section-heading p {
    margin: 0;
    color: var(--muted);
    font-size: .88rem;
}

.config-section > .field-label,
.config-section > .text-field,
.config-section > .field-message,
.config-section > .body-options,
.config-section > .edge-tabs,
.config-section > .edge-options,
.config-section > .edge-custom-panel,
.config-section > .segmented,
.config-section > .color-panel,
.config-section > .contrast-warning,
.config-section > .logo-grid,
.config-section > .logo-color-controls,
.config-section > .upload-zone,
.config-section > .logo-settings {
    margin-left: 28px;
    width: calc(100% - 28px);
}

.field-label {
    display: flex;
    align-items: baseline;
    gap: 7px;
    margin-top: 19px;
    margin-bottom: 8px;
    color: #47444c;
    font-size: .86rem;
    font-weight: 700;
}

.field-label b {
    color: var(--red);
    font-size: .73rem;
    font-weight: 600;
}

.field-label span {
    color: #99959d;
    font-size: .68rem;
    font-weight: 500;
}

.text-field {
    height: 48px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid #d5d1d8;
    border-radius: 10px;
    background: #fff;
    padding: 0 14px;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.text-field:focus-within {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(102, 87, 216, .11);
}

.text-field.invalid {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(189, 63, 77, .09);
}

.text-field svg {
    color: #908c95;
    flex: 0 0 auto;
}

.text-field input {
    min-width: 0;
    width: 100%;
    height: 100%;
    border: 0;
    outline: 0;
    color: var(--ink);
    background: transparent;
    font-size: .94rem;
}

.text-field input::placeholder {
    color: #aaa7ae;
}

.file-suffix {
    flex: 0 0 auto;
    color: #a09ca5;
    font: .7rem 'Space Mono', monospace;
}

.field-message {
    min-height: 18px;
    margin-top: 7px;
    color: #96929a;
    font-size: .74rem;
}

.field-message.error {
    color: var(--red);
}

.body-options,
.edge-options {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 9px;
}

.shape-card,
.edge-card {
    min-width: 0;
    min-height: 78px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #d7d3da;
    border-radius: 13px;
    background: #fff;
    cursor: pointer;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.shape-card:hover,
.edge-card:hover {
    transform: translateY(-2px);
    border-color: #a7a1b3;
}

.shape-card.active,
.edge-card.active {
    border-color: #34a853;
    background: #fff;
    box-shadow: inset 0 0 0 2px #34a853;
}

.shape-demo {
    width: 58px;
    height: 48px;
    display: block;
    position: relative;
    background: none;
    color: var(--ink);
}

.shape-demo svg {
    display: block;
    width: 100%;
    height: 100%;
}

.edge-tabs {
    display: inline-flex;
    gap: 18px;
    margin: 0 0 14px;
}

.edge-tabs button {
    padding: 0;
    border: 0;
    background: transparent;
    color: #aaa6ae;
    font-size: .8rem;
    font-weight: 700;
    cursor: pointer;
}

.edge-tabs button.active {
    color: #1f6f67;
}

.edge-demo {
    position: relative;
    width: 72px;
    max-width: 100%;
    height: 48px;
    display: block;
    color: #3c3b40;
}

.edge-demo svg {
    width: 100%;
    height: 100%;
    display: block;
}

.edge-custom-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
}

.corner-picker {
    position: relative;
}

.corner-title {
    display: block;
    margin-bottom: 7px;
    color: #8d8891;
    font-size: .78rem;
    font-weight: 700;
}

.corner-trigger {
    min-width: 0;
    width: 100%;
    min-height: 78px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: 1px solid #d7d3da;
    border-radius: 13px;
    background: #fff;
    box-sizing: border-box;
    cursor: pointer;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.corner-trigger:hover {
    transform: translateY(-2px);
    border-color: #a7a1b3;
}

.corner-trigger i {
    color: #aaa6ae;
    font-style: normal;
    font-size: 1.1rem;
}

.corner-menu {
    position: absolute;
    left: 0;
    right: auto;
    z-index: 3;
    display: none;
    width: 260px;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-top: 8px;
    padding: 9px;
    border: 1px solid #d7d3da;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(42, 37, 54, .14);
}

.corner-picker.open .corner-menu {
    display: grid;
}

.corner-picker:nth-child(2) .corner-menu {
    left: 50%;
    transform: translateX(-50%);
}

.corner-picker:nth-child(3) .corner-menu {
    left: auto;
    right: 0;
}

.corner-menu button {
    min-height: 42px;
    display: grid;
    place-items: center;
    border: 1px solid #dedbe2;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.corner-menu button.active {
    border-color: #34a853;
    box-shadow: inset 0 0 0 1px #34a853;
}

.corner-menu .edge-demo {
    width: 31px;
    height: 31px;
}

.corner-trigger .edge-demo {
    width: 38px;
    height: 38px;
}

select {
    width: 100%;
    height: 38px;
    margin-top: 6px;
    padding: 0 28px 0 10px;
    border: 1px solid #d7d3da;
    border-radius: 8px;
    outline: 0;
    color: var(--ink);
    background: #fff;
}

.segmented {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 4px;
    border-radius: 10px;
    background: #ebe8e2;
}

.segmented button,
.format-switch button {
    height: 34px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: #77737c;
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
}

.segmented [data-color-mode="gradient"] {
    color: inherit;
}

.segmented [data-color-mode="gradient"] span {
    color: transparent;
    background: linear-gradient(135deg, #6657d8, #d95fb5);
    -webkit-background-clip: text;
    background-clip: text;
}

.segmented button.active,
.format-switch button.active {
    color: var(--ink);
    background: #fff;
    box-shadow: 0 2px 8px rgba(20, 18, 25, .08);
}

.color-panel {
    padding-top: 19px;
}

.hidden {
    display: none !important;
}

.swatches {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 11px;
}

.swatch,
.custom-swatch {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 4px solid #fff;
    border-radius: 50%;
    outline: 1px solid #d7d3da;
    background: var(--swatch);
    cursor: pointer;
}

.swatch.active,
.custom-swatch.active {
    outline: 2px solid var(--purple);
    outline-offset: 2px;
}

.custom-swatch {
    position: relative;
    display: inline-block;
    overflow: hidden;
    background: conic-gradient(#ff3b30, #ff9500, #ffcc00, #34c759, #0a84ff, #5856d6, #ff2d55, #ff3b30);
}

.custom-swatch::after {
    content: '';
    position: absolute;
    inset: 7px;
    border-radius: 50%;
    background: var(--selected-color, #17161a);
    box-shadow: 0 0 0 2px #fff;
}

.custom-swatch input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.gradient-presets {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 9px;
}

.gradient-presets button {
    height: 32px;
    border: 3px solid #fff;
    border-radius: 8px;
    outline: 1px solid #d7d3da;
    background: var(--gradient);
    cursor: pointer;
}

.gradient-presets button.active {
    outline: 2px solid var(--purple);
    outline-offset: 1px;
}

.contrast-warning {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 14px 0 0;
    padding: 10px 12px;
    border-radius: 8px;
    color: #8c621d;
    background: #fff3d5;
    font-size: .68rem;
}

.contrast-warning svg {
    width: 16px;
    flex: 0 0 auto;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.logo-option {
    min-width: 0;
    height: 62px;
    padding: 7px 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    overflow: hidden;
    border: 1px solid #d7d3da;
    border-radius: 9px;
    background: #fff;
    color: #65616a;
    font-size: .67rem;
    font-weight: 600;
    cursor: pointer;
}

.logo-option:hover,
.logo-option.active {
    border-color: var(--purple);
    background: var(--purple-soft);
}

.logo-option.active {
    box-shadow: inset 0 0 0 1px var(--purple);
}

.logo-option > span:first-child,
.logo-option > img:first-child {
    height: 25px;
    width: 25px;
    object-fit: contain;
    display: block;
    font-weight: 700;
}

.logo-option > span:first-child {
    font-size: 1.35rem;
    line-height: 25px;
    text-align: center;
}

.logo-option > img:first-child {
    filter: none;
}

.logo-color-controls {
    margin-top: 13px;
    padding: 12px;
    border: 1px solid #dedbe2;
    border-radius: 11px;
    background: #fff;
}

.logo-color-mode {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 4px;
    border-radius: 9px;
    background: #ebe8e2;
}

.logo-color-mode button {
    height: 32px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: #77737c;
    font-size: .78rem;
    font-weight: 700;
    cursor: pointer;
}

.logo-color-mode button.active {
    color: var(--ink);
    background: #fff;
    box-shadow: 0 2px 8px rgba(20, 18, 25, .08);
}

.logo-color-picker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 11px;
    margin-top: 10px;
}

.logo-swatch,
.logo-custom-swatch {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 4px solid #fff;
    border-radius: 50%;
    outline: 1px solid #d7d3da;
    background: var(--swatch);
    cursor: pointer;
}

.logo-swatch.active,
.logo-custom-swatch.active {
    outline: 2px solid var(--purple);
    outline-offset: 2px;
}

.logo-custom-swatch {
    position: relative;
    display: inline-block;
    overflow: hidden;
    background: conic-gradient(#ff3b30, #ff9500, #ffcc00, #34c759, #0a84ff, #5856d6, #ff2d55, #ff3b30);
}

.logo-custom-swatch::after {
    content: '';
    position: absolute;
    inset: 7px;
    border-radius: 50%;
    background: var(--selected-logo-color, #18171b);
    box-shadow: 0 0 0 2px #fff;
}

.logo-custom-swatch input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-zone {
    min-height: 66px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 13px;
    margin-top: 13px;
    border: 1px dashed #bbb6c1;
    border-radius: 10px;
    color: #77737c;
    background: rgba(255, 255, 255, .5);
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease;
}

.upload-zone.has-logo {
    justify-content: stretch;
    padding: 9px 12px;
    border-style: solid;
    border-color: #9e94df;
    background: rgba(237, 233, 255, .58);
}

.upload-zone:hover,
.upload-zone.dragging,
.upload-zone:focus-visible {
    border-color: var(--purple);
    background: var(--purple-soft);
    outline: 0;
}

.upload-zone input {
    display: none;
}

.upload-empty-state,
.upload-selected-state {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 13px;
}

.upload-empty-state {
    justify-content: center;
}

.upload-zone .upload-empty-state > svg {
    width: 21px;
}

.upload-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.upload-copy b {
    overflow: hidden;
    color: #48444d;
    font-size: .82rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upload-copy span {
    overflow: hidden;
    color: #77737c;
    font-size: .7rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.custom-logo-thumbnail {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 1px solid #d7d2dc;
    border-radius: 9px;
    background:
        linear-gradient(45deg, #edeaf0 25%, transparent 25%, transparent 75%, #edeaf0 75%),
        linear-gradient(45deg, #edeaf0 25%, #fff 25%, #fff 75%, #edeaf0 75%);
    background-position: 0 0, 6px 6px;
    background-size: 12px 12px;
}

.custom-logo-thumbnail img {
    width: 34px;
    height: 34px;
    display: block;
    object-fit: contain;
}

.upload-selected-state .upload-copy {
    flex: 1;
}

.upload-replace-icon {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    color: var(--purple);
    opacity: .72;
}

.logo-settings {
    margin-top: 18px;
    padding: 15px;
    border-radius: 10px;
    background: rgba(244, 241, 235, .42);
}

.logo-settings label {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 8px;
    margin-bottom: 13px;
    color: #5e5a63;
    font-size: .78rem;
    font-weight: 700;
}

.logo-settings output {
    color: var(--purple);
    font: 700 .68rem 'Space Mono', monospace;
}

.logo-settings input[type="range"] {
    grid-column: 1 / -1;
    width: 100%;
    accent-color: var(--purple);
}

.text-button {
    padding: 0;
    border: 0;
    color: var(--red);
    background: transparent;
    font-size: .78rem;
    font-weight: 700;
    cursor: pointer;
}

.reset-button {
    width: calc(100% - 68px);
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 26px 34px;
    border: 1px solid #f1c8c8;
    border-radius: 9px;
    background: #fff1f1;
    color: #9b3d45;
    font-size: .78rem;
    font-weight: 700;
    cursor: pointer;
}

.reset-button:hover {
    border-color: #e8aaaa;
    background: #ffe8e8;
}

.preview-column {
    position: sticky;
    top: 24px;
}

.preview-card {
    padding: 31px;
}

.preview-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 21px;
}

.preview-heading > div > span {
    display: block;
    margin-bottom: 4px;
    color: var(--purple);
    font: 700 .7rem 'Space Mono', monospace;
    letter-spacing: .12em;
}

.qr-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 1px solid #e0dde2;
    border-radius: 14px;
    background:
        linear-gradient(45deg, #f7f5f1 25%, transparent 25%, transparent 75%, #f7f5f1 75%),
        linear-gradient(45deg, #f7f5f1 25%, #fff 25%, #fff 75%, #f7f5f1 75%);
    background-position: 0 0, 8px 8px;
    background-size: 16px 16px;
}

.export-settings {
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.target-link-row {
    margin-bottom: 14px;
}

.target-link-row a {
    width: 196px;
    overflow: hidden;
    color: var(--purple);
    font-size: .76rem;
    font-weight: 600;
    line-height: 1.4;
    text-align: right;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.target-link-row a[href]:hover {
    text-decoration: underline;
}

#qr-preview {
    width: 88%;
    height: 88%;
    display: none;
    filter: drop-shadow(0 7px 14px rgba(34, 30, 41, .08));
}

#qr-preview.visible {
    display: block;
}

#qr-preview svg {
    display: block;
    width: 100%;
    height: 100%;
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: #aaa6ae;
}

.placeholder-qr {
    width: 82px;
    height: 82px;
    margin-bottom: 16px;
    display: grid;
    place-items: center;
    color: var(--ink);
    opacity: .68;
}

.placeholder-qr img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.placeholder b {
    color: var(--purple);
    font-size: .9rem;
}

.placeholder p {
    margin: 4px 0 0;
    font-size: .74rem;
}

.preview-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin: 14px 0 22px;
    color: #85818a;
    font-size: .72rem;
}

.preview-note svg {
    width: 15px;
    color: var(--green);
}

.format-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #5c5861;
    font-size: .8rem;
    font-weight: 700;
}

.format-switch {
    width: 130px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 3px;
    border-radius: 8px;
    background: #ebe8e2;
}

.format-switch button {
    height: 30px;
    font-size: .68rem;
}

.export-options {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.export-option {
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #5c5861;
    font-size: .74rem;
    font-weight: 700;
}

.size-switch,
.background-switch {
    width: 196px;
    display: grid;
    padding: 3px;
    border-radius: 8px;
    background: #ebe8e2;
}

.size-switch {
    grid-template-columns: repeat(3, 1fr);
}

.background-switch {
    grid-template-columns: repeat(2, 1fr);
}

.size-switch button,
.background-switch button {
    height: 30px;
    border: 0;
    border-radius: 6px;
    color: #817d86;
    background: transparent;
    font: 600 .64rem 'Space Mono', monospace;
    cursor: pointer;
}

.size-switch button.active,
.background-switch button.active {
    color: var(--purple);
    background: #fff;
    box-shadow: 0 2px 7px rgba(43, 40, 49, .08);
}

.download-button {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    margin-top: 18px;
    border: 0;
    border-radius: 10px;
    color: #fff;
    background: var(--purple);
    box-shadow: 0 9px 22px rgba(102, 87, 216, .22);
    font-weight: 700;
    cursor: pointer;
    transition: transform .18s ease, background .18s ease, opacity .18s ease;
}

.download-button:hover:not(:disabled) {
    transform: translateY(-2px);
    background: var(--purple-dark);
}

.download-button:disabled {
    opacity: .4;
    cursor: not-allowed;
    box-shadow: none;
}

.download-meta {
    margin: 9px 0 0;
    color: #9c98a0;
    text-align: center;
    font-size: .7rem;
}

.secondary-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 14px;
}

.secondary-actions button {
    min-width: 0;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0 6px;
    border: 1px solid #dfdbe2;
    border-radius: 8px;
    color: #6f6a74;
    background: rgba(255, 255, 255, .58);
    font-size: .65rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color .18s ease, color .18s ease, background .18s ease;
}

.secondary-actions button:hover:not(:disabled) {
    border-color: #b8afe9;
    color: var(--purple);
    background: #fff;
}

.secondary-actions button:disabled {
    opacity: .42;
    cursor: not-allowed;
}

.secondary-actions svg {
    width: 15px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.secondary-actions span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.action-message {
    min-height: 16px;
    margin: 6px 0 0;
    color: var(--green);
    text-align: center;
    font-size: .66rem;
}

.scan-tip {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 13px;
    margin-top: 16px;
    padding: 17px 19px;
    border: 1px solid #ded5b8;
    border-radius: 12px;
    background: #fff8e6;
    color: #6f6246;
}

.scan-tip > span {
    height: fit-content;
    padding: 3px 6px;
    border-radius: 4px;
    color: #fff;
    background: #c58c28;
    font: 700 .57rem 'Space Mono', monospace;
}

.scan-tip p {
    margin: 0;
    font-size: .74rem;
    line-height: 1.55;
}

footer {
    min-height: 80px;
    max-width: 1360px;
    margin: 0 auto;
    padding: 20px 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(25, 24, 28, .1);
    color: #918d95;
    font: .63rem 'Space Mono', monospace;
}

footer a {
    color: var(--purple);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-brand img {
    width: 18px;
    height: 18px;
    object-fit: contain;
}

@media (max-width: 900px) {
    .shell {
        padding-top: 50px;
    }

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

    .preview-column {
        position: static;
    }

    .preview-card {
        max-width: 620px;
        margin: 0 auto;
    }

    .scan-tip {
        max-width: 620px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 600px) {
    .site-header {
        height: 66px;
        padding: 0 17px;
    }

    .shell {
        padding: 42px 14px 64px;
    }

    .hero {
        margin-bottom: 33px;
    }

    .hero h1 {
        font-size: clamp(2.6rem, 15vw, 4rem);
        white-space: normal;
    }

    .stamp-line {
        white-space: normal;
    }

    .edge-tabs button {
        min-height: 44px;
        padding: 0 4px;
    }

    .corner-menu {
        width: min(260px, calc(100vw - 78px));
    }

    .logo-color-mode button {
        min-height: 40px;
        white-space: nowrap;
        font-size: .72rem;
    }

    .hero > p:last-child {
        font-size: .9rem;
    }

    .workspace {
        gap: 18px;
    }

    .config-section {
        padding: 26px 20px 29px;
    }

    .body-options,
    .edge-options {
        grid-template-columns: repeat(3, 1fr);
    }

    .gradient-presets {
        grid-template-columns: repeat(3, 1fr);
    }

    .logo-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .reset-button {
        width: calc(100% - 40px);
        margin: 22px 20px;
    }

    .preview-card {
        padding: 23px 19px;
    }

    .size-switch,
    .background-switch,
    .target-link-row a {
        width: 178px;
    }

    footer {
        padding: 22px 17px;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}