*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --accent: #1E40AF;
    --text: #0F172A;
    --text-2: #475569;
    --muted: #94A3B8;
    --bg: #FFFFFF;
    --panel: #F8FAFC;
    --rule: #E2E8F0;
    --warn: #B45309;
}

@media (prefers-color-scheme: dark) {
    :root {
        --accent: #93B4FF;
        --text: #F1F5F9;
        --text-2: #CBD5E1;
        --muted: #7C8CA5;
        --bg: #0F172A;
        --panel: #16223B;
        --rule: #24334C;
        --warn: #F59E0B;
    }
}

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Saira', system-ui, sans-serif;
    /* scales with the viewport, so ch-based measures widen with the page instead of stranding it */
    font-size: clamp(1rem, 0.9rem + 0.3vw, 1.25rem);
    line-height: 1.55;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.wrap {
    position: relative;
    z-index: 1;
    max-width: 2000px;
    margin: 0 auto;
    padding: 0 clamp(28px, 4.5vw, 96px);
}

#waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 760px;
    z-index: 0;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(#000 55%, transparent);
    mask-image: linear-gradient(#000 55%, transparent);
}

a { color: inherit; }

/* Masthead */
.masthead {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 36px 0 0;
    font-size: 0.875rem;
    color: var(--muted);
}

.brand {
    display: block;
    line-height: 0;
}

.brand img {
    height: 58px;
    width: auto;
}

/* logo art is white; darken it on light backgrounds */
@media (prefers-color-scheme: light) {
    .brand img { filter: invert(1); }
}
:root[data-theme="light"] .brand img { filter: invert(1); }
:root[data-theme="dark"] .brand img { filter: none; }

/* Hero */
.hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(48px, 7vw, 140px);
    align-items: center;
    padding: clamp(72px, 9vw, 150px) 0 clamp(80px, 10vw, 170px);
}

h1 {
    font-size: clamp(2.125rem, 1rem + 3.4vw, 5rem);
    font-weight: 600;
    line-height: 1.06;
    letter-spacing: -0.035em;
}

.lede {
    margin-top: 24px;
    max-width: 46ch;
    font-size: 1.0625rem;
    color: var(--text-2);
}

/* Signup */
form {
    display: flex;
    gap: 8px;
    margin-top: 36px;
    max-width: 30em;
}

input {
    flex: 1;
    min-width: 0;
    font: inherit;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: 11px 13px;
}

input::placeholder { color: var(--muted); }
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

button {
    font: inherit;
    font-weight: 500;
    color: var(--bg);
    background: var(--text);
    border: 0;
    border-radius: 4px;
    padding: 11px 20px;
    cursor: pointer;
}

button:hover { background: var(--accent); }

.note {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--muted);
    min-height: 1.4em;
}

/* Dashboard */
.app {
    background: var(--panel);
    border: 1px solid var(--rule);
    border-radius: 8px;
    padding: 4px clamp(20px, 2vw, 34px) 10px;
}

.app-head {
    display: flex;
    justify-content: space-between;
    padding: 14px 0 12px;
    font-size: 0.8125rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--rule);
}

.scroller {
    height: clamp(340px, 32vw, 520px);
    overflow-y: auto;
    scrollbar-width: none;
    -webkit-mask-image: linear-gradient(transparent, #000 9%, #000 88%, transparent);
    mask-image: linear-gradient(transparent, #000 9%, #000 88%, transparent);
}

.scroller::-webkit-scrollbar { display: none; }

.mail {
    display: flex;
    gap: 13px;
    padding: 15px 0;
    border-bottom: 1px solid var(--rule);
}

.av {
    flex: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: hsl(var(--h) 62% 42%);
    background: hsl(var(--h) 62% 42% / 0.16);
}

@media (prefers-color-scheme: dark) {
    .av {
        color: hsl(var(--h) 70% 78%);
        background: hsl(var(--h) 70% 78% / 0.14);
    }
}

.mail-body { min-width: 0; flex: 1; }

.mail-top {
    display: flex;
    justify-content: baseline;
    justify-content: space-between;
    align-items: baseline;
    gap: 14px;
}

.mail-top b {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.subj, .snip {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.subj { font-size: 0.9375rem; color: var(--text-2); }

.snip {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 1px;
}

.flag {
    flex: none;
    font-size: 0.8125rem;
    color: var(--muted);
    white-space: nowrap;
}

.flag.due { color: var(--warn); }

.caption {
    margin-top: 14px;
    font-size: 0.875rem;
    color: var(--muted);
}

/* Sections: label left, content right */
section {
    display: grid;
    grid-template-columns: minmax(180px, 18%) 1fr;
    gap: clamp(32px, 5vw, 100px);
    padding: clamp(44px, 4.5vw, 84px) 0;
    border-top: 1px solid var(--rule);
}

h2 {
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--muted);
}

.body { max-width: 68ch; }
.body p + p { margin-top: 16px; }

/* Pricing */
.tiers {
    display: flex;
    gap: clamp(40px, 6vw, 120px);
}

.tiers > div { flex: 1; max-width: 38ch; }

.tiers dt {
    font-weight: 500;
    margin-bottom: 2px;
}

.tiers dd {
    font-size: 0.9375rem;
    color: var(--text-2);
}

.tiers .cost {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 10px;
}

/* Footer */
footer {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    justify-content: space-between;
    padding: 22px 0 48px;
    border-top: 1px solid var(--rule);
    font-size: 0.875rem;
    color: var(--muted);
}

footer nav { display: flex; gap: 20px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--text); }

@media (max-width: 900px) {
    .wrap { padding: 0 28px; }
    .hero {
        grid-template-columns: 1fr;
        gap: 48px;
        padding: 64px 0 72px;
    }
    section {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 44px 0;
    }
}

@media (max-width: 560px) {
    form { flex-direction: column; }
    .tiers { flex-direction: column; gap: 28px; }
    .row { flex-direction: column; gap: 4px; }
}

/* Legal pages */
.prose {
    max-width: 68ch;
    padding: clamp(56px, 6vw, 96px) 0 clamp(48px, 5vw, 80px);
}

.prose h1 {
    font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.75rem);
    margin-bottom: 6px;
}

.prose .updated {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 44px;
}

.prose h2 {
    margin: 40px 0 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--muted);
}

.prose p, .prose li { color: var(--text-2); }
.prose p + p { margin-top: 14px; }
.prose ul { margin: 12px 0 0 20px; }
.prose li { padding: 3px 0; }
.prose a { color: var(--text); }
.prose strong { color: var(--text); font-weight: 500; }

.back {
    display: inline-block;
    margin-top: 40px;
    font-size: 0.875rem;
    color: var(--muted);
    text-decoration: none;
}

.back:hover { color: var(--text); }

/* Centered prose variant (About) */
.prose.center {
    margin-inline: auto;
    text-align: center;
}
.prose.center .lead {
    font-size: 1.125rem;
    color: var(--text-2);
    max-width: 54ch;
    margin: 0 auto 8px;
}
.prose.center h2 { text-align: center; }
.prose.center p { margin-inline: auto; }
.prose.center .back { margin-inline: auto; }

/* ---- Staggered menu ---- */
.menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    position: relative;
    z-index: 60;
    font: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

.menu-toggle .lbl {
    position: relative;
    height: 1.2em;
    width: 3.2em;
    overflow: hidden;
    text-align: right;
}

.menu-toggle .lbl span {
    position: absolute;
    right: 0;
    transition: transform 0.4s var(--ease, cubic-bezier(0.16,1,0.3,1));
}
.menu-toggle .lbl .close { transform: translateY(1.3em); }
.menu-open .menu-toggle .lbl .open { transform: translateY(-1.3em); }
.menu-open .menu-toggle .lbl .close { transform: translateY(0); }

.sm-close {
    position: absolute;
    top: clamp(24px, 4vw, 44px);
    right: clamp(24px, 5vw, 64px);
    font: inherit;
    font-size: 2.4rem;
    line-height: 1;
    color: var(--muted);
    background: none;
    border: 0;
    padding: 4px 8px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.4s ease, color 0.2s;
    transition-delay: 0s;
}
.sm-close:hover { color: var(--text); }
.menu-open .sm-close { opacity: 1; transition-delay: 0.45s; }

/* Overlay */
.sm { position: fixed; inset: 0; z-index: 50; pointer-events: none; }
.menu-open .sm { pointer-events: auto; }

.sm-layer,
.sm-panel {
    position: absolute;
    inset: 0;
    transform: translateX(102%);
    transition: transform 0.62s cubic-bezier(0.16,1,0.3,1);
}

.sm-layer.a { background: var(--accent); }
.sm-layer.b { background: var(--text); opacity: 0.9; }
.sm-panel {
    background: var(--bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 clamp(28px, 8vw, 140px);
}

/* stagger the reveal: panel last, layers lead */
.menu-open .sm-layer.a { transform: translateX(0); transition-delay: 0s; }
.menu-open .sm-layer.b { transform: translateX(0); transition-delay: 0.07s; }
.menu-open .sm-panel  { transform: translateX(0); transition-delay: 0.14s; }

/* closing: reverse order so panel leaves first */
.sm-panel  { transition-delay: 0.12s; }
.sm-layer.b { transition-delay: 0.06s; }
.sm-layer.a { transition-delay: 0s; }

.sm-nav { list-style: none; }

.sm-nav li {
    overflow: hidden;
    line-height: 1.05;
}

.sm-nav a {
    display: flex;
    align-items: baseline;
    gap: 16px;
    padding: 6px 0;
    font-size: clamp(2.25rem, 1.4rem + 4vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text);
    text-decoration: none;
    transform: translateY(115%) rotate(8deg);
    transform-origin: left top;
    transition: transform 0.9s cubic-bezier(0.16,1,0.3,1), color 0.2s;
}

.sm-nav a:hover { color: var(--accent); }

.sm-nav a .n {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0;
    color: var(--muted);
    transform: translateY(-0.9em);
}

.menu-open .sm-nav a { transform: translateY(0) rotate(0); }
.menu-open .sm-nav li:nth-child(1) a { transition-delay: 0.20s; }
.menu-open .sm-nav li:nth-child(2) a { transition-delay: 0.28s; }
.menu-open .sm-nav li:nth-child(3) a { transition-delay: 0.36s; }
.menu-open .sm-nav li:nth-child(4) a { transition-delay: 0.44s; }
.menu-open .sm-nav li:nth-child(5) a { transition-delay: 0.52s; }

.sm-socials {
    margin-top: clamp(32px, 5vw, 64px);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16,1,0.3,1);
}
.menu-open .sm-socials { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }

.sm-socials h2 {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-bottom: 10px;
}

.sm-socials a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 1rem;
}
.sm-socials a:hover { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
    .sm-layer, .sm-panel, .sm-nav a, .sm-socials, .sm-close, .menu-toggle .lbl span {
        transition-duration: 0.001s !important;
        transition-delay: 0s !important;
    }
}