:root {
    --black: #000;
    --white: #fff;
    --paper: #f3f3f3;
    --muted: #555;
    --masthead-height: 72px;
    --gutter: clamp(20px, 4vw, 64px);
    --panel-bottom-buffer: clamp(48px, 7svh, 88px);
    --panel-transition-pause: clamp(120px, 18svh, 220px);
    font-family: Inter, Arial, sans-serif;
    color: var(--black);
    background: var(--white);
    font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--white); color: var(--black); }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }
.shell { width: 100%; min-height: 100vh; margin: 0 auto; background: var(--white); }
.masthead { position: sticky; z-index: 100; top: 0; display: flex; min-height: calc(var(--masthead-height) + env(safe-area-inset-top)); align-items: center; justify-content: space-between; gap: 16px; padding: env(safe-area-inset-top) var(--gutter) 0; border-bottom: 2px solid var(--black); background: var(--white); }
.wordmark { font: 23px/1 Anton, Impact, sans-serif; letter-spacing: -.025em; white-space: nowrap; }
.masthead nav { display: flex; gap: 14px; font: 700 9px/1 "IBM Plex Mono", monospace; letter-spacing: .06em; }
.masthead nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.page { width: min(100%, 660px); margin-inline: auto; padding-inline: clamp(20px, 6vw, 30px); }
.eyebrow, .effective, .proof-grid span, .legal-document section > b { font: 700 10px/1.45 "IBM Plex Mono", monospace; letter-spacing: .09em; }
.landing h1, .landing h2, .landing h3 { font-family: Anton, Impact, sans-serif; font-weight: 400; letter-spacing: -.025em; text-transform: uppercase; }
.scroll-panel { position: sticky; top: calc(var(--masthead-height) + env(safe-area-inset-top)); min-height: calc(100svh - var(--masthead-height) - env(safe-area-inset-top)); overflow: hidden; scroll-margin-top: calc(var(--masthead-height) + env(safe-area-inset-top)); border-bottom: 2px solid currentColor; }
.scroll-panel:not(:last-child) { margin-bottom: var(--panel-transition-pause); }
.scroll-panel:nth-child(1) { z-index: 1; }
.scroll-panel:nth-child(2) { z-index: 2; }
.scroll-panel:nth-child(3) { z-index: 3; }
.scroll-panel:nth-child(4) { z-index: 4; }
.scroll-panel:nth-child(5) { z-index: 5; }
.theme-dark { background: var(--black); color: var(--white); }
.theme-light { background: var(--white); color: var(--black); }
.panel-inner { display: flex; width: 100%; min-height: inherit; flex-direction: column; padding: clamp(30px, 5vh, 66px) var(--gutter); }
.hero-panel h1 { max-width: 1360px; margin: clamp(24px, 5vh, 56px) 0 0; font-size: clamp(72px, 11.4vw, 184px); line-height: .84; }
.hero-bottom { display: grid; grid-template-columns: minmax(280px, 580px) auto; gap: 48px; align-items: end; justify-content: space-between; margin-top: auto; padding-top: 40px; }
.intro { margin: 0; font-size: clamp(17px, 1.45vw, 23px); font-weight: 600; line-height: 1.48; }
.scroll-cue { display: flex; align-items: center; gap: 20px; padding-bottom: 5px; border-bottom: 1px solid currentColor; font: 700 10px/1.4 "IBM Plex Mono", monospace; letter-spacing: .08em; }
.scroll-cue span { font-size: 20px; }
.panel-heading { display: grid; grid-template-columns: minmax(180px, .65fr) 1.35fr; gap: 32px; align-items: start; }
.panel-heading h2 { margin: 0; font-size: clamp(62px, 8.5vw, 138px); line-height: .86; }
.step-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: auto calc(var(--gutter) * -1) var(--panel-bottom-buffer); padding: 42px var(--gutter) 0; list-style: none; border-top: 2px solid currentColor; }
.step-list li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 0 clamp(18px, 2.2vw, 38px) 10px; border-left: 1px solid currentColor; }
.step-list li:first-child { padding-left: 0; border-left: 0; }
.step-list li:last-child { padding-right: 0; }
.step-number { padding-top: 5px; font: 700 10px/1 "IBM Plex Mono", monospace; }
.step-list h3 { margin: 0; font-size: clamp(28px, 3vw, 48px); line-height: .94; }
.step-list p { max-width: 340px; margin: 16px 0 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.encryption-panel h2 { max-width: 1200px; margin: clamp(28px, 5vh, 56px) 0 0; font-size: clamp(78px, 13vw, 205px); line-height: .82; }
.encryption-copy { display: grid; grid-template-columns: minmax(220px, 1fr) minmax(300px, 1.2fr); gap: clamp(26px, 5vw, 90px); align-items: start; margin-top: auto; padding-top: 40px; }
.encryption-copy p { max-width: 620px; margin: 0; font-size: clamp(15px, 1.35vw, 21px); font-weight: 600; line-height: 1.5; }
.encryption-copy .inline-link { grid-column: 2; margin-top: 0; justify-self: start; }
.receipts-panel .panel-heading h2 { font-size: clamp(58px, 8vw, 128px); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin: auto calc(var(--gutter) * -1) var(--panel-bottom-buffer); padding-top: 42px; border-top: 2px solid currentColor; }
.proof-grid article { display: flex; min-height: 190px; flex-direction: column; padding: 0 clamp(22px, 3vw, 50px) 8px; border-left: 1px solid currentColor; }
.proof-grid article:first-child { padding-left: var(--gutter); border-left: 0; }
.proof-grid article:last-child { padding-right: var(--gutter); }
.proof-grid strong { margin-top: 24px; font: clamp(30px, 3.4vw, 54px)/.95 Anton, Impact, sans-serif; }
.proof-grid p { max-width: 330px; margin: auto 0 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.download-panel h2 { margin: clamp(28px, 5vh, 56px) 0 0; font-size: clamp(86px, 14.5vw, 225px); line-height: .82; }
.download-bottom { margin-top: auto; padding-top: 34px; }
.waitlist { margin-top: 34px; }
.waitlist-question, .waitlist-confirmation strong, .waitlist-research > p { margin: 0; font: clamp(27px, 3.2vw, 48px)/1.05 Anton, Impact, sans-serif; text-transform: uppercase; }
.waitlist-signup > form, .waitlist-research > form:first-of-type { display: grid; grid-template-columns: minmax(0, 1fr) auto; margin-top: 18px; }
.waitlist input, .waitlist textarea, .waitlist button { min-height: 58px; border: 2px solid var(--white); border-radius: 0; font: 700 13px/1.3 "IBM Plex Mono", monospace; }
.waitlist input, .waitlist textarea { width: 100%; padding: 14px 16px; background: var(--black); color: var(--white); }
.waitlist input::placeholder, .waitlist textarea::placeholder { color: #aaa; opacity: 1; }
.waitlist textarea { min-height: 92px; resize: vertical; }
.waitlist button { padding: 12px 24px; background: var(--white); color: var(--black); cursor: pointer; text-transform: uppercase; }
.waitlist button:hover { background: var(--paper); }
.waitlist button:disabled { cursor: wait; opacity: .65; }
.waitlist-promise, .waitlist-error, .waitlist-confirmation p, .waitlist-thanks { font: 700 10px/1.5 "IBM Plex Mono", monospace; letter-spacing: .05em; }
.waitlist-promise { margin: 12px 0 0; }
.waitlist-error { margin: 10px 0 0; color: #ffb3b3; }
.waitlist-confirmation { border-block: 2px solid var(--white); padding: 24px 0; }
.waitlist-confirmation p { margin: 10px 0 0; }
.waitlist-research { margin-top: 28px; }
.waitlist-skip { margin-top: 8px; }
.waitlist-skip button { min-height: auto; padding: 5px 0; border: 0; border-bottom: 1px solid currentColor; background: transparent; color: var(--white); font-size: 9px; }
.waitlist-thanks { margin: 18px 0 0; text-transform: uppercase; }
.waitlist-honeypot { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; clip-path: inset(50%) !important; white-space: nowrap !important; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }
.store-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 34px; }
.store-button { display: flex; min-height: 82px; flex-direction: column; justify-content: space-between; padding: 15px 16px 14px; border: 2px solid var(--black); background: var(--black); color: var(--white); font: 30px/1 Anton, Impact, sans-serif; letter-spacing: .015em; }
.store-button small { font: 700 8px/1 "IBM Plex Mono", monospace; letter-spacing: .09em; }
.store-button.disabled { background: var(--paper); color: var(--black); }
.theme-dark .store-button { border-color: var(--white); background: var(--white); color: var(--black); }
.theme-dark .store-button.disabled { background: transparent; color: var(--white); }
.inline-link { display: inline-block; margin-top: 28px; padding-bottom: 4px; border-bottom: 1px solid currentColor; font: 700 9px/1.4 "IBM Plex Mono", monospace; letter-spacing: .07em; }
.legal-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 30px; font: 700 9px/1.5 "IBM Plex Mono", monospace; letter-spacing: .055em; }
.legal-links a { text-decoration: underline; text-underline-offset: 3px; }
footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-top: 68px; padding-top: 20px; border-top: 2px solid var(--black); }
footer p { margin: 0; font: 9px/1.5 "IBM Plex Mono", monospace; letter-spacing: .04em; }
footer strong { font: 20px/1 Anton, Impact, sans-serif; }
.app-fallback { padding-top: 68px; padding-bottom: calc(60px + env(safe-area-inset-bottom)); }
.app-fallback h1 { margin: 22px 0 0; font-size: clamp(92px, 28vw, 148px); line-height: .84; }
.primary-button { display: flex; min-height: 58px; align-items: center; justify-content: center; margin-top: 34px; padding: 12px 18px; border: 2px solid var(--black); background: var(--black); color: var(--white); font-size: 13px; font-weight: 800; letter-spacing: .035em; text-align: center; }
.legal-page { padding-top: 40px; padding-bottom: calc(54px + env(safe-area-inset-bottom)); }
.legal-hero h1 { margin: 25px 0 0; font-size: clamp(70px, 21vw, 112px); line-height: .86; }
.account-deletion-page .legal-hero h1 { font-size: clamp(48px, 15.5vw, 112px); }
.effective { margin: 28px 0 0; font-size: 9px; }
.legal-document { margin-top: 38px; }
.legal-summary { margin-inline: calc(var(--gutter) * -1); padding: 27px var(--gutter) 29px; border-block: 2px solid var(--black); background: var(--paper); font-size: 16px; font-weight: 700; line-height: 1.5; }
.legal-document section { display: grid; grid-template-columns: 38px 1fr; gap: 14px; padding: 30px 0 32px; border-bottom: 1px solid var(--black); }
.legal-document section > b { padding-top: 3px; }
.legal-document h2 { margin: 0 0 20px; font: 32px/1 Anton, Impact, sans-serif; }
.legal-document h3 { margin: 24px 0 8px; font: 700 11px/1.3 "IBM Plex Mono", monospace; letter-spacing: .05em; text-transform: uppercase; }
.legal-document p, .legal-document li { font-size: 14px; line-height: 1.62; }
.legal-document p { margin: 0 0 16px; }
.legal-document p:last-child { margin-bottom: 0; }
.legal-document ul { margin: 0 0 18px; padding-left: 20px; }
.legal-document a { font-weight: 800; text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; }
.legal-actions { display: grid; gap: 10px; margin-top: 36px; }
.legal-actions a { display: grid; min-height: 58px; place-items: center; border: 2px solid var(--black); font-size: 12px; font-weight: 800; }

@media (max-width: 760px) {
    :root { --masthead-height: 66px; --gutter: 20px; --panel-bottom-buffer: max(40px, env(safe-area-inset-bottom)); }
    .masthead nav a:not(:first-child) { display: none; }
    .panel-inner { padding-block: 28px; }
    .hero-panel h1 { font-size: clamp(66px, 20vw, 112px); }
    .hero-bottom { grid-template-columns: 1fr; gap: 24px; }
    .scroll-cue { justify-self: start; }
    .panel-heading { display: block; }
    .panel-heading h2 { margin-top: 22px; font-size: clamp(58px, 17vw, 92px); }
    .step-list { grid-template-columns: 1fr; margin-top: 32px; padding-top: 0; border-top: 1px solid currentColor; }
    .step-list li { grid-template-columns: 30px 1fr; padding: 17px 0 18px; border-top: 1px solid currentColor; border-left: 0; }
    .step-list li:first-child { border-top: 0; }
    .step-list h3 { font-size: 30px; }
    .step-list p { margin-top: 8px; font-size: 13px; }
    .encryption-panel h2 { font-size: clamp(70px, 21vw, 116px); }
    .encryption-copy { grid-template-columns: 1fr; gap: 18px; }
    .encryption-copy p { font-size: 14px; }
    .encryption-copy .inline-link { grid-column: 1; margin-top: 4px; }
    .receipts-panel .panel-heading h2 { font-size: clamp(54px, 15vw, 82px); }
    .proof-grid { grid-template-columns: 1fr; margin-top: 28px; padding-top: 0; border-top-width: 1px; }
    .proof-grid article, .proof-grid article:first-child, .proof-grid article:last-child { display: grid; min-height: auto; grid-template-columns: 78px 1fr; gap: 8px 12px; padding: 16px var(--gutter); border-top: 1px solid currentColor; border-left: 0; }
    .proof-grid article:first-child { border-top: 0; }
    .proof-grid strong { margin: 0; font-size: 28px; }
    .proof-grid p { grid-column: 2; margin: 0; font-size: 12px; }
    .download-panel h2 { font-size: clamp(82px, 23vw, 126px); }
    .waitlist-signup > form, .waitlist-research > form:first-of-type { grid-template-columns: 1fr; gap: 8px; }
    .waitlist-question, .waitlist-confirmation strong, .waitlist-research > p { font-size: 28px; }
    .store-grid { grid-template-columns: 1fr; }
    .legal-document section { grid-template-columns: 30px 1fr; gap: 8px; }
}

@media (max-height: 680px) and (min-width: 761px), (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .scroll-panel { position: relative; top: auto; min-height: max(680px, calc(100svh - var(--masthead-height))); margin-bottom: 0; }
}
@font-face { font-family: Anton; src: url('/fonts/anton.woff2') format('woff2'); font-display: swap; font-weight: 400; }
@font-face { font-family: Inter; src: url('/fonts/inter-400.woff2') format('woff2'); font-display: swap; font-weight: 400; }
@font-face { font-family: Inter; src: url('/fonts/inter-600.woff2') format('woff2'); font-display: swap; font-weight: 600; }
@font-face { font-family: Inter; src: url('/fonts/inter-700.woff2') format('woff2'); font-display: swap; font-weight: 700; }
@font-face { font-family: "IBM Plex Mono"; src: url('/fonts/ibm-plex-mono-400.woff2') format('woff2'); font-display: swap; font-weight: 400; }
@font-face { font-family: "IBM Plex Mono"; src: url('/fonts/ibm-plex-mono-700.woff2') format('woff2'); font-display: swap; font-weight: 700; }