:root {
  color-scheme: dark;
  --bg: #101426;
  --panel: #171c31;
  --ink: #f4f0e8;
  --muted: #a8adbf;
  --accent: #ff7a64;
  --accent-2: #f3b38a;
  --line: #2a3048;
  --ease: cubic-bezier(.23, 1, .32, 1);
  --serif: 'Songti SC', 'STSong', 'Noto Serif CJK SC', 'SimSun', serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 40px; }
body { margin: 0; min-height: 100vh; background: radial-gradient(ellipse at 80% -10%, #242a4e 0%, var(--bg) 42%, #0d1020 100%); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
button:disabled { cursor: not-allowed; }
::selection { background: #ff7a64; color: #101426; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.hidden { display: none !important; }
.ambient { pointer-events: none; position: absolute; inset: 0 0 auto; height: 950px; z-index: -1; overflow: hidden; background: radial-gradient(ellipse at 86% 25%, #242a4e3b, transparent 53%), radial-gradient(ellipse at 4% 68%, #f3b38a0e, transparent 42%); }
.ambient::after { content: ''; position: absolute; width: 740px; height: 740px; border: 1px solid #a8adbf06; border-radius: 50%; right: -100px; top: -235px; box-shadow: 0 0 0 80px #a8adbf03, 0 0 0 160px #a8adbf02; }
.noise { position: fixed; inset: 0; pointer-events: none; z-index: 9; opacity: .022; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23fff' filter='url(%23n)' d='M0 0h180v180H0z'/%3E%3C/svg%3E"); }
.skip-link { position: fixed; top: 12px; left: 12px; padding: 12px 18px; background: var(--accent); color: var(--bg); z-index: 100; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.topbar { max-width: 1320px; height: 104px; margin: 0 auto; padding: 0 48px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 13px; font-size: 21px; font-weight: 600; letter-spacing: .08em; }
.brand-mark { position: relative; display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid #ff7a6470; border-radius: 50%; color: var(--accent); font: italic 32px Georgia, serif; letter-spacing: -.15em; padding-right: 5px; padding-bottom: 5px; }
.brand-mark > span { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); right: 6px; bottom: 7px; }
.brand em { display: block; margin-top: 3px; color: var(--muted); font-size: 8px; font-style: normal; font-weight: 400; letter-spacing: .2em; }
.topbar-right { display: flex; gap: 32px; align-items: center; }
.secure { display: flex; gap: 9px; align-items: center; font-size: 11px; color: var(--muted); }
.dot { width: 5px; height: 5px; background: #67d6a0; border-radius: 50%; }
.avatar { border: 1px solid var(--line); background: #ffffff03; color: var(--ink); padding: 10px 16px; border-radius: 30px; font-size: 12px; transition: border-color 180ms, background 180ms, transform 180ms var(--ease); }
.avatar span { display: inline-block; margin-left: 16px; color: var(--accent); transition: transform 220ms var(--ease); }
.shell { max-width: 1320px; margin: auto; padding: 104px 48px 114px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, 470px); align-items: center; gap: 70px; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--accent); font-size: 11px; letter-spacing: .13em; margin-bottom: 31px; }
.eyebrow > span { width: 21px; height: 1px; background: var(--accent); }
.eyebrow i { font-size: 9px; font-style: normal; color: #7c849f; margin-left: 13px; letter-spacing: .12em; }
h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(44px, 4.6vw, 66px); line-height: 1.4; letter-spacing: -.045em; margin: 0; white-space: nowrap; }
.handwritten { position: relative; color: var(--accent-2); }
.handwritten svg { position: absolute; height: 14px; bottom: -13px; left: 0; width: 100%; overflow: visible; }
.handwritten path { stroke: var(--accent-2); stroke-width: 1.3; stroke-linecap: round; stroke-dasharray: 520; stroke-dashoffset: 520; animation: draw-line 1200ms var(--ease) 650ms forwards; }
.intro > p { margin: 35px 0 37px; font-size: 14px; line-height: 2.1; color: var(--muted); }
.proof-row { display: flex; gap: 0; }
.proof-row > div { padding: 0 26px; border-left: 1px solid var(--line); }
.proof-row > div:first-child { padding-left: 0; border: 0; }
.proof-row strong { display: block; font-size: 19px; letter-spacing: -.04em; font-weight: 500; }
.proof-row small { display: block; margin-top: 9px; font-size: 10px; color: #7c849f; }
.explore-link { display: inline-flex; align-items: center; gap: 25px; margin-top: 42px; font-size: 11px; color: #a8adbf; }
.explore-link span { display: grid; place-items: center; height: 27px; width: 27px; border: 1px solid var(--line); border-radius: 50%; color: var(--accent); transition: transform 240ms var(--ease), border-color 240ms; }
.workspace { position: relative; padding: 26px; border: 1px solid #67739855; border-radius: 20px; background: linear-gradient(140deg, #242a4e80, #171c31ed 42%, #171c31da); box-shadow: 0 20px 70px #00000030, inset 0 1px 0 #f4f0e806; }
.workspace::before { content: ''; position: absolute; top: -1px; left: 18%; right: 18%; height: 1px; background: linear-gradient(90deg, transparent, #a8adbf77, transparent); }
.workspace-head, .workspace-head > div { display: flex; align-items: center; }
.workspace-head { justify-content: space-between; margin-bottom: 24px; }
.workspace-index { color: #7c849f; font-size: 10px; margin-right: 9px; font-family: monospace; }
.workspace-title { font-size: 12px; letter-spacing: .08em; }
.status-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: #67d6a0; }
.pulse { height: 5px; width: 5px; border-radius: 50%; background: #67d6a0; box-shadow: 0 0 0 4px #67d6a00b; }
.upload-card { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 300px; border: 1px dashed #68759980; border-radius: 12px; background: radial-gradient(ellipse at 50% 35%, #8f9ad60c, transparent 68%), #10142633; cursor: pointer; transition: background-color 240ms, border-color 240ms; }
.document-art { width: 120px; height: 132px; position: relative; margin: 0 0 20px; pointer-events: none; }
.paper { position: absolute; width: 83px; height: 108px; border-radius: 5px; left: 15px; top: 12px; transition: transform 400ms var(--ease); }
.paper-back { background: #939ec4; border: 1px solid #c2c9e077; transform: rotate(-12deg) translate(-5px, 2px); opacity: .42; }
.paper-front { background: #f4f0e8; color: #313851; box-shadow: 0 9px 22px #070b1c60; transform: rotate(7deg); padding: 12px 11px; }
.paper-title { display: flex; justify-content: space-between; align-items: center; font: 25px Georgia, serif; }
.paper-title > span { font: 5px sans-serif; letter-spacing: .1em; color: #7c849f; }
.paper-lines { display: grid; gap: 5px; margin-top: 10px; }
.paper-lines i { display: block; height: 2px; background: #b5b9ca; border-radius: 1px; }
.paper-lines i:nth-child(2) { width: 88%; }
.paper-lines i:nth-child(3) { width: 60%; }
.paper-signature { display: block; margin-top: 10px; font-family: var(--serif); font-size: 7px; color: #858ca3; }
.upload-badge { position: absolute; display: grid; place-items: center; bottom: 5px; right: 5px; width: 34px; height: 34px; border-radius: 50%; background: #ff7a64; color: #171529; box-shadow: 0 3px 10px #10142680; transition: transform 350ms var(--ease); }
.upload-badge svg { height: 18px; width: 18px; }
.upload-card h2 { font-size: 17px; font-weight: 500; margin: 0 0 8px; letter-spacing: .03em; }
.upload-card p { margin: 0; font-size: 12px; color: #929bb8; }
.text-button { padding: 3px 1px; border: 0; background: transparent; color: var(--accent); }
.upload-note { margin-top: 23px; font-size: 9px; letter-spacing: .08em; color: #7c849f; }
.upload-note > span { margin: 0 9px; color: #55617e; }
.upload-card.dragging { background-color: #ff7a640c; border-color: var(--accent); }
.upload-card.dragging .paper-front { transform: translateY(-7px) rotate(0); }
.upload-card.dragging .paper-back { transform: rotate(-18deg) translate(-12px, 0); }
.control-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 24px 0 20px; }
.delivery-note { font-size: 10px; color: #98a2c0; display: flex; align-items: center; gap: 5px; }
.delivery-note svg { height: 15px; width: 15px; }
.price-block { display: flex; align-items: baseline; gap: 10px; white-space: nowrap; }
.price-block > span { font-size: 10px; color: #7c849f; }
.price-block strong { font-size: 21px; font-weight: 500; color: var(--accent-2); letter-spacing: -.03em; }
.primary-button { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 50px; border: 1px solid transparent; border-radius: 8px; padding: 13px 18px; color: #171529; background: var(--accent); font-size: 13px; font-weight: 500; transition: background-color 180ms, transform 180ms var(--ease), box-shadow 180ms; }
.primary-button .arrow { font-size: 22px; font-weight: 400; line-height: 1; transition: transform 220ms var(--ease); }
.primary-button:disabled { background: #353b55; border-color: #a8adbf12; color: #8892ae; }
.microcopy { text-align: center; font-size: 10px; line-height: 1.7; color: #7c849f; margin: 13px 0 0; min-height: 17px; }
.file-card { display: flex; align-items: center; gap: 15px; margin-top: 24px; min-height: 130px; padding: 24px 18px; border: 1px solid #67739855; border-radius: 12px; background: #10142633; animation: appear 300ms var(--ease); }
.file-type { display: grid; place-items: center; flex-shrink: 0; height: 47px; width: 36px; color: #313851; background: #f4f0e8; border-radius: 3px; font: italic 25px Georgia, serif; }
.file-meta { flex: 1; min-width: 0; }
.file-meta strong { display: block; font-size: 13px; font-weight: 500; overflow-wrap: anywhere; }
.file-meta span { display: block; margin-top: 7px; font-size: 11px; color: var(--muted); }
.remove-file { border: 0; width: 32px; height: 36px; background: transparent; color: var(--muted); font-size: 23px; }
.remove-file:disabled { opacity: .4; cursor: wait; }
.processing { margin-top: 24px; animation: appear 250ms var(--ease); }
.processing-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 11px; color: var(--muted); }
.processing-top strong { color: var(--accent); font-weight: 500; white-space: nowrap; }
.progress-track { margin: 13px 0; height: 3px; background: #a8adbf12; border-radius: 3px; overflow: hidden; }
.progress-bar { width: 0; height: 100%; background: var(--accent); transform-origin: left; }
.progress-bar.indeterminate { animation: progress-sweep 1.5s ease-in-out infinite; }
.steps { display: flex; justify-content: space-between; color: #7c849f; font-size: 9px; }
.steps .active { color: var(--accent); }
.success-card { margin-top: 22px; display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--line); padding-top: 20px; animation: appear 350ms var(--ease); }
.success-icon { display: grid; place-items: center; flex-shrink: 0; height: 27px; width: 27px; background: #67d6a014; border: 1px solid #67d6a035; color: #67d6a0; border-radius: 50%; font-size: 13px; }
.success-card > div:nth-child(2) { min-width: 0; flex: 1; }
.success-card strong { display: block; font-weight: 500; font-size: 12px; overflow-wrap: anywhere; }
.success-card > div > span { display: block; font-size: 10px; line-height: 1.7; color: var(--muted); margin-top: 5px; }
.download-button { flex-shrink: 0; padding: 10px 12px; background: transparent; border: 1px solid #67d6a050; border-radius: 6px; color: #96dfba; font-size: 11px; }
.download-button span { margin-left: 5px; }
.expression-section, .below-fold { max-width: 1224px; margin: 0 auto; }
.expression-section { border-top: 1px solid var(--line); padding-top: 51px; scroll-margin-top: 28px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.section-kicker { color: #bcc3d8; font-size: 9px; letter-spacing: .14em; }
.section-kicker > span { color: #7c849f; margin-left: 12px; letter-spacing: .05em; }
.section-heading h2 { margin: 17px 0 0; font-family: var(--serif); font-weight: 400; font-size: 31px; letter-spacing: -.035em; }
.section-heading h2 > span { color: #a8adbf; }
.section-heading > p { font-size: 11px; line-height: 1.9; color: #7c849f; margin: 0; }
.comparison { position: relative; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.comparison article { padding: 28px 36px 32px; }
.before-copy { background: #ffffff01; border-right: 1px solid var(--line); }
.copy-label { display: flex; align-items: center; gap: 13px; color: #7c849f; font-size: 10px; }
.copy-label > span { font-size: 8px; letter-spacing: .15em; }
.comparison article > p { font-size: 18px; line-height: 1.95; margin: 23px 0 0; }
.before-copy p { color: #939bb4; }
.before-copy p span { text-decoration-line: underline; text-decoration-color: #727d9f66; text-underline-offset: 7px; }
.after-copy { background: linear-gradient(120deg, #8f9ad609, #8f9ad602); }
.after-copy .copy-label { color: #f3b38a; }
.after-copy > p { color: #f4f0e8; }
.after-copy em { color: var(--accent-2); font-style: normal; }
.example-note { display: block; margin-top: 19px; color: #7c849f; font-size: 9px; }
.comparison-arrow { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 32px; height: 32px; border: 1px solid #414a68; border-radius: 50%; background: #1c2238; color: #f3b38a; display: grid; place-items: center; font-size: 18px; }
.below-fold { padding: 69px 0 73px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 60px; margin-top: 28px; }
.feature-grid article { padding-top: 20px; border-top: 1px solid var(--line); transition: border-color 240ms; }
.feature-number { display: flex; justify-content: space-between; font: 12px Georgia, serif; color: var(--accent); }
.feature-number > span { font: 8px -apple-system, sans-serif; letter-spacing: .13em; color: #7c849f; }
.feature-grid h3 { font-size: 16px; font-weight: 500; margin: 23px 0 12px; }
.feature-grid p { font-size: 12px; line-height: 1.95; color: #a8adbf; margin: 0; }
footer { max-width: 1224px; margin: auto; padding: 24px 0 28px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; font-size: 10px; color: #7c849f; }
.modal-backdrop { position: fixed; inset: 0; z-index: 20; background: #080b18c7; backdrop-filter: blur(10px); display: flex; align-items: center; justify-content: center; padding: 20px; animation: fade-in 180ms ease-out; }
.account-modal { position: relative; width: 410px; max-height: calc(100dvh - 40px); overflow-y: auto; padding: 36px; border-radius: 16px; border: 1px solid #67739855; background: #171c31; box-shadow: 0 30px 100px #0006; animation: modal-in 280ms var(--ease); }
.modal-close { position: absolute; right: 15px; top: 13px; height: 36px; width: 36px; color: var(--muted); border: 0; background: transparent; font-size: 24px; }
.modal-kicker { color: var(--accent); font-size: 9px; letter-spacing: .15em; }
.account-modal h2 { font: 400 30px var(--serif); margin: 18px 0 12px; }
.modal-copy { color: var(--muted); font-size: 12px; line-height: 1.9; margin: 0 0 26px; }
.field-label { display: block; margin-bottom: 9px; color: #b7bfd4; font-size: 11px; }
.field-input { width: 100%; padding: 14px 13px; border: 1px solid #67739855; border-radius: 7px; background: #101426; color: var(--ink); font-size: 13px; }
.field-input::placeholder { color: #7c849f; }
.login-button { margin-top: 14px; }
.wallet-preview { margin-top: 25px; display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 18px; border: 1px solid var(--line); border-radius: 9px; }
.wallet-preview > span { color: var(--muted); font-size: 11px; }
.wallet-preview strong { color: var(--accent); font-weight: 500; font-size: 16px; }
.wallet-preview button { grid-column: 1 / -1; background: transparent; border: 0; border-top: 1px solid var(--line); padding: 13px 0 0; text-align: left; color: #b7bfd4; font-size: 11px; }
.modal-footnote { margin: 20px 0 0; color: #7c849f; line-height: 1.7; font-size: 10px; }
.account-actions { display: flex; align-items: center; gap: 8px; }
.register-button { color: var(--accent-2); border-color: #ff7a6470; }
.password-label { margin-top: 18px; }
.auth-switch { display: flex; align-items: center; justify-content: center; gap: 5px; margin: 16px 0 0; font-size: 12px; color: var(--muted); }
.auth-message { color: var(--accent-2); font-size: 16px; font-weight: 500; line-height: 1.7; padding: 12px 14px; border-radius: 8px; background: #ff7a640b; overflow-wrap: anywhere; }
.auth-message:empty { display: none; }
.account-detail { display: grid; gap: 10px; font-size: 12px; color: var(--muted); }
.account-detail strong { font-size: 15px; font-weight: 500; color: var(--ink); overflow-wrap: anywhere; }
.wallet-preview button:disabled { color: #7c849f; }
#backendLink { display: inline-block; margin-top: 10px; font-size: 12px; }
.balance-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 20px; background: #10142670; border: 1px solid var(--line); border-radius: 10px; }
.balance-summary span { display: block; font-size: 13px; color: var(--muted); }
.balance-summary strong { display: block; margin-top: 10px; font-size: 25px; font-weight: 500; color: var(--accent-2); }
.balance-gap { margin: 18px 0; font-size: 15px; line-height: 1.7; color: var(--muted); }
.recharge-options { display: grid; grid-template-columns: repeat(3,1fr); gap: 9px; }
.recharge-options button { border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--ink); padding: 16px 5px; }
.recharge-options button[aria-pressed="true"] { border-color: var(--accent); background: #ff7a640b; }
.recharge-options strong { display: block; font-size: 17px; font-weight: 500; }
.recharge-options span { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; }
.recharge-options button:disabled { opacity: .6; }
body:has(.modal-backdrop:not(.hidden)) { overflow: hidden; }
.intro > * { animation: appear 850ms var(--ease) both; }
.intro .eyebrow { animation-delay: 40ms; }
.intro h1 { animation-delay: 100ms; }
.intro > p { animation-delay: 170ms; }
.intro .proof-row { animation-delay: 230ms; }
.intro .explore-link { animation-delay: 290ms; }
.workspace { animation: appear 950ms var(--ease) 200ms both; }
.reveal-pending { opacity: 0; transform: translateY(18px); }
[data-reveal] { transition: opacity 650ms var(--ease), transform 650ms var(--ease); }
.feature-grid article:nth-child(2) { transition-delay: 60ms; }
.feature-grid article:nth-child(3) { transition-delay: 120ms; }
@keyframes appear { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(8px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes draw-line { to { stroke-dashoffset: 0; } }
@keyframes progress-sweep { 0% { transform: translateX(-100%) scaleX(.4); } 100% { transform: translateX(100%) scaleX(.4); } }
.document-art:not(.reveal-pending) { animation: paper-float 4.4s ease-in-out 400ms; }
.workspace::before { opacity: .65; transition: transform 250ms var(--ease), opacity 250ms; }
.workspace:focus-within::before { opacity: 1; transform: scaleX(1.15); }
.primary-button { position: relative; overflow: hidden; isolation: isolate; }
.primary-button::before { content: ''; position: absolute; inset: -50% auto -50% -35%; width: 30%; background: linear-gradient(90deg, transparent, #ffffff30, transparent); pointer-events: none; opacity: 0; }
.brand-mark { transition: transform 250ms var(--ease); }
.paper-lines i { transform-origin: left; }
.comparison:not(.reveal-pending) .before-copy { animation: copy-reveal 450ms var(--ease) 80ms both; }
.comparison:not(.reveal-pending) .after-copy { animation: copy-reveal 650ms var(--ease) 240ms both; }
.comparison:not(.reveal-pending) .comparison-arrow { animation: fade-in 300ms ease-out 160ms both; }
.feature-grid article h3, .download-button span { transition: transform 220ms var(--ease); }
.download-button span { display: inline-block; }
@keyframes paper-float {
  0%, 100% { transform: translateY(0) rotate(0); }
  35% { transform: translateY(-9px) rotate(-2deg); }
  70% { transform: translateY(-3px) rotate(1deg); }
}
@keyframes ink-in { from { transform: scaleX(.35); opacity: .3; } to { transform: scaleX(1); opacity: 1; } }
@keyframes copy-reveal { from { opacity: .15; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes button-sheen {
  0% { opacity: 0; transform: translateX(0) skewX(-18deg); }
  15% { opacity: 1; }
  100% { opacity: 0; transform: translateX(500%) skewX(-18deg); }
}
.primary-button:not(:disabled):focus-visible::before { animation: button-sheen 650ms var(--ease); }
.upload-card:focus-visible .paper-lines i { animation: ink-in 450ms var(--ease) both; }
@media (hover: hover) and (pointer: fine) {
  .brand:hover .brand-mark { transform: rotate(-8deg); }
  .workspace:hover::before { opacity: 1; transform: scaleX(1.15); }
  .upload-card:hover .document-art { animation-play-state: paused; }
  .upload-card:hover .paper-lines i { animation: ink-in 450ms var(--ease) both; }
  .upload-card:hover .paper-lines i:nth-child(2) { animation-delay: 70ms; }
  .upload-card:hover .paper-lines i:nth-child(3) { animation-delay: 140ms; }
  .primary-button:not(:disabled):hover::before { animation: button-sheen 650ms var(--ease); }
  .feature-grid article:hover h3 { transform: translateX(4px); }
  .download-button:hover span { transform: translateY(3px); }
  .avatar:hover { border-color: #ff7a6466; background: #ff7a6408; }
  .avatar:hover span { transform: translate(2px, -2px); }
  .explore-link:hover span { transform: translateY(3px); border-color: var(--accent); }
  .upload-card:hover { background-color: #a8adbf05; border-color: #9aa7d694; }
  .upload-card:hover .paper-front { transform: translateY(-7px) rotate(1deg); }
  .upload-card:hover .paper-back { transform: rotate(-17deg) translate(-10px, 0); }
  .upload-card:hover .upload-badge { transform: translateY(-3px); }
  .text-button:hover { text-decoration: underline; text-underline-offset: 4px; }
  .primary-button:not(:disabled):hover { background: #ff957f; box-shadow: 0 5px 22px #ff7a6412; }
  .primary-button:not(:disabled):hover .arrow { transform: translate(2px, -2px); }
  .feature-grid article:hover { border-color: #ff7a6475; }
  .download-button:hover { background: #67d6a00d; }
}
button:not(:disabled):active { transform: scale(.97); }
@media (max-width: 1319px) {
  .expression-section, .below-fold, footer { margin-left: 48px; margin-right: 48px; }
}
@media (max-width: 1100px) {
  .topbar { padding: 0 32px; height: 88px; }
  .shell { padding: 78px 32px 90px; gap: 38px; grid-template-columns: minmax(0, 1fr) minmax(345px, 420px); }
  h1 { font-size: clamp(38px, 4.4vw, 49px); }
  .intro > p { font-size: 12px; }
  .eyebrow i { display: none; }
  .proof-row > div { padding: 0 15px; }
  .proof-row strong { font-size: 17px; }
  .proof-row small { font-size: 9px; }
  .workspace { padding: 23px; }
  .expression-section, .below-fold, footer { margin-left: 32px; margin-right: 32px; }
  .feature-grid { gap: 35px; }
}
@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; gap: 48px; padding-top: 62px; padding-bottom: 66px; }
  .intro { max-width: 580px; }
  h1 { font-size: clamp(40px, 7.7vw, 59px); line-height: 1.45; }
  .eyebrow { margin-bottom: 22px; }
  .eyebrow i { display: inline; }
  .intro > p { margin: 29px 0; font-size: 14px; }
  .proof-row > div { padding: 0 28px; }
  .proof-row strong { font-size: 20px; }
  .proof-row small { font-size: 10px; }
  .explore-link { margin-top: 29px; }
  .workspace { padding: 25px; }
  .upload-card { min-height: 300px; }
  .secure { display: none; }
  .section-heading { align-items: flex-start; }
  .section-heading > p { display: none; }
  .section-heading h2 { font-size: 28px; }
  .comparison article { padding: 25px; }
  .comparison article > p { font-size: 16px; }
  .feature-grid { gap: 25px; }
  .feature-grid h3 { font-size: 14px; line-height: 1.7; }
}
@media (max-width: 520px) {
  .topbar { height: 84px; padding: 0 22px; }
  .brand { font-size: 19px; gap: 10px; }
  .brand-mark { height: 37px; width: 37px; font-size: 29px; }
  .brand em { font-size: 7px; }
  .avatar { padding: 9px 13px; }
  .avatar span { margin-left: 10px; }
  .shell { padding: 48px 22px 55px; gap: 38px; }
  .eyebrow { font-size: 10px; letter-spacing: .05em; }
  .eyebrow i { font-size: 8px; margin-left: 5px; }
  h1 { font-size: clamp(32px, 8.7vw, 44px); }
  .intro > p { font-size: 12px; line-height: 2.05; }
  .proof-row > div { padding: 0 21px; }
  .proof-row strong { font-size: 18px; }
  .proof-row small { font-size: 9px; }
  .workspace { padding: 20px; border-radius: 16px; }
  .workspace-head { margin-bottom: 20px; }
  .upload-card { min-height: 285px; }
  .delivery-note { font-size: 9px; gap: 3px; }
  .price-block { gap: 6px; }
  .price-block strong { font-size: 19px; }
  .price-block > span { font-size: 9px; }
  .expression-section, .below-fold, footer { margin-left: 22px; margin-right: 22px; }
  .expression-section { padding-top: 35px; }
  .section-kicker { font-size: 8px; letter-spacing: .09em; }
  .section-kicker > span { margin-left: 5px; }
  .section-heading { margin-bottom: 23px; }
  .section-heading h2 { font-size: 23px; }
  .comparison { grid-template-columns: 1fr; }
  .comparison article { padding: 25px; }
  .comparison article > p { font-size: 17px; }
  .before-copy { border-right: 0; border-bottom: 1px solid var(--line); }
  .comparison-arrow { display: none; }
  .below-fold { padding-top: 45px; padding-bottom: 38px; }
  .feature-grid { grid-template-columns: 1fr; gap: 28px; margin-top: 25px; }
  .feature-grid h3 { margin-top: 17px; margin-bottom: 9px; font-size: 16px; }
  .feature-grid p { max-width: 300px; }
  footer { flex-direction: column; gap: 12px; padding: 21px 0; font-size: 9px; }
  .account-modal { padding: 30px 25px; }
  .success-card { flex-wrap: wrap; }
  .download-button { margin-left: 37px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .handwritten path { stroke-dashoffset: 0; }
  .reveal-pending { opacity: 1; transform: none; }
  .brand:hover .brand-mark, .workspace:hover::before, .workspace:focus-within::before, .feature-grid article:hover h3, .download-button:hover span { transform: none; }
  button:not(:disabled):active, .upload-card:hover .paper-front, .upload-card.dragging .paper-front, .upload-card:hover .paper-back, .upload-card.dragging .paper-back, .upload-card:hover .upload-badge, .avatar:hover span, .explore-link:hover span, .primary-button:not(:disabled):hover .arrow { transform: none; }
  .progress-bar.indeterminate { opacity: .5; }
}