/* CorreoNativo — bandeja de demostración con el diseño del prototipo de la app:
   riel añil fijo a la izquierda, lista y vista de lectura sobre superficie clara. */
:root{
  --paper:#F5F6FA;--surface:#FFFFFF;--surface-2:#EEF0F7;--ink:#161A33;--ink-2:#565C7A;--ink-3:#8A8FA8;--line:#DCDFEA;
  --azul:#6598FF;--azul-hover:#89B0FF;--azul-ink:#09152B;--anil:#3266E8;--anil-ink:#FFFFFF;--anil-soft:#E8EEFF;
  --rail:#0B1220;--rail-ink:#F3F4F1;--rail-ink-2:#9EA6B8;--rail-hover:#162036;--rail-active:#1E2D4D;
  --rosa:#CC0A6E;--rosa-ink:#FFFFFF;--rosa-soft:#FCE6F1;--ok:#1C7A4F;--ok-soft:#E3F4EB;--warn:#9A5B00;--warn-soft:#FBF0DC;--bad:#B8321C;--bad-soft:#FBE7E3;
  --focus:#3266E8;--scrim:rgba(14,17,34,.45);--shadow-pop:0 16px 40px -16px rgba(22,26,51,.32),0 2px 6px rgba(22,26,51,.08);
  --font-display:"Fraunces","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --font-ui:"DM Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --r-sm:6px;--r-md:8px;--r-lg:14px;color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#080D17;--surface:#111827;--surface-2:#1A2234;--ink:#F3F4F1;--ink-2:#A3A8B4;--ink-3:#6E7484;--line:#262F42;
  --anil:#8EB3FF;--anil-ink:#09152B;--anil-soft:#1B2B4A;--rail:#05090F;--rail-ink-2:#8D95A6;--rail-hover:#111A2B;--rail-active:#1B2B4A;
  --rosa:#FF5AA8;--rosa-ink:#1A0612;--rosa-soft:#3B1630;--ok:#52C78E;--ok-soft:#12301F;--warn:#E8A94A;--warn-soft:#33250E;--bad:#FF7A63;--bad-soft:#3A1A15;
  --focus:#6598FF;--scrim:rgba(0,0,0,.6);--shadow-pop:0 16px 40px -12px rgba(0,0,0,.6),0 2px 6px rgba(0,0,0,.3);color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#080D17;--surface:#111827;--surface-2:#1A2234;--ink:#F3F4F1;--ink-2:#A3A8B4;--ink-3:#6E7484;--line:#262F42;
  --anil:#8EB3FF;--anil-ink:#09152B;--anil-soft:#1B2B4A;--rail:#05090F;--rail-ink-2:#8D95A6;--rail-hover:#111A2B;--rail-active:#1B2B4A;
  --rosa:#FF5AA8;--rosa-ink:#1A0612;--rosa-soft:#3B1630;--ok:#52C78E;--ok-soft:#12301F;--warn:#E8A94A;--warn-soft:#33250E;--bad:#FF7A63;--bad-soft:#3A1A15;
  --focus:#6598FF;--scrim:rgba(0,0,0,.6);--shadow-pop:0 16px 40px -12px rgba(0,0,0,.6),0 2px 6px rgba(0,0,0,.3);color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--paper);color:var(--ink);font:400 15px/1.5 var(--font-ui);-webkit-font-smoothing:antialiased;overflow:hidden}
h1,h2,h3,p,ul,ol{margin:0}ul,ol{padding:0;list-style:none}
a{color:var(--anil);text-decoration:none}a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

.i{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
.i--sm{width:16px;height:16px}
.muted{color:var(--ink-2)}.small{font-size:13px}.xs{font-size:12px}.strong{font-weight:600}.tabular{font-variant-numeric:tabular-nums}
.spacer{flex:1}
.address{font-family:var(--font-display);font-weight:500;letter-spacing:-.005em;color:var(--ink);text-decoration:underline;text-decoration-color:var(--rosa);text-decoration-thickness:2px;text-underline-offset:.22em;overflow-wrap:anywhere}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:14px;font-weight:600;line-height:1;white-space:nowrap;text-decoration:none;transition:background-color .15s,border-color .15s}
.btn:hover{background:var(--surface-2);text-decoration:none}
.btn .i{width:18px;height:18px}
.btn--primary{background:var(--azul);border-color:var(--azul);color:var(--azul-ink)}
.btn--primary:hover{background:var(--azul-hover);border-color:var(--azul-hover)}
.btn--ghost{background:transparent;border-color:transparent}.btn--ghost:hover{background:var(--surface-2)}
.btn--sm{height:32px;padding:0 12px;font-size:13px}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;flex:none;border-radius:var(--r-md);border:0;background:transparent;color:var(--ink-2)}
.icon-btn:hover{background:var(--surface-2);color:var(--ink)}
.link-btn{border:0;background:none;padding:0;color:var(--anil);font-weight:600}
.link-btn:hover{text-decoration:underline}
.chip{display:inline-flex;align-items:center;gap:6px;height:22px;padding:0 8px;border-radius:999px;background:var(--surface-2);color:var(--ink-2);font-size:12px;font-weight:600;white-space:nowrap}
.chip--pedidos{background:var(--anil-soft);color:var(--anil)}.chip--facturas{background:var(--ok-soft);color:var(--ok)}.chip--warn{background:var(--warn-soft);color:var(--warn)}
.count{display:inline-grid;place-items:center;min-width:22px;height:20px;padding:0 6px;border-radius:10px;background:var(--rosa);color:var(--rosa-ink);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
.unread-dot{width:8px;height:8px;border-radius:50%;background:var(--rosa);flex:none}
.dot{width:10px;height:10px;border-radius:3px;flex:none}
.dot--pedidos{background:var(--azul)}.dot--proveedores{background:var(--ink-3)}.dot--facturas{background:var(--ok)}
.avatar{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;flex:none;font-size:12px;font-weight:700;letter-spacing:.02em;background:var(--surface-2);color:var(--ink-2)}
.avatar--lg{width:44px;height:44px;font-size:13px}
.avatar--a{background:var(--anil-soft);color:var(--anil)}.avatar--b{background:var(--rosa-soft);color:var(--rosa)}.avatar--c{background:var(--ok-soft);color:var(--ok)}.avatar--d{background:var(--warn-soft);color:var(--warn)}.avatar--e{background:var(--surface-2);color:var(--ink-2)}
.notice{display:flex;gap:12px;padding:12px 14px;border-radius:var(--r-md);background:var(--surface-2);font-size:13px;line-height:1.45}
.notice--anil{background:var(--anil-soft)}.notice--anil>.i{color:var(--anil)}
.notice--warn{background:var(--warn-soft)}.notice--warn>.i{color:var(--warn)}
.input,.select{width:100%;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font-size:15px}
.input:focus,.select:focus{outline:none;border-color:var(--anil);box-shadow:0 0 0 3px var(--anil-soft)}
.seg{display:inline-flex;padding:3px;gap:2px;border-radius:var(--r-md);background:var(--surface-2)}
.seg button{height:30px;padding:0 12px;border:0;border-radius:6px;background:transparent;color:var(--ink-2);font-size:13px;font-weight:600;white-space:nowrap}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(22,26,51,.12)}

.wordmark{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:750;letter-spacing:-.035em;line-height:1;color:var(--rail-ink);white-space:nowrap;text-decoration:none}
.wordmark:hover{text-decoration:none}
.wordmark__mark{width:28px;height:28px;flex:none;border-radius:8px}
.wordmark em{font-style:normal;font-weight:400}
.wordmark__tld{margin-left:1px;font-size:.6em;font-weight:600;opacity:.7}

/* Estructura */
.shell{position:relative;display:grid;grid-template-columns:256px minmax(0,1fr);height:100%}
.appbar{display:none}
.rail{display:flex;flex-direction:column;gap:14px;padding:16px 12px;background:var(--rail);color:var(--rail-ink);overflow-y:auto}
.rail>*{flex-shrink:0}
.rail .wordmark{padding:4px 8px}
.rail__account{display:grid;gap:2px;padding:4px 8px}
.rail__account .address{color:var(--rail-ink);font-size:17px}
.rail__account .xs{color:var(--rail-ink-2)}
.rail>.btn{margin:0 4px}
.rail__group{display:grid;gap:2px}
.rail__heading{padding:10px 8px 4px;font-size:12px;font-weight:600;color:var(--rail-ink-2)}
.rail__item{display:flex;align-items:center;gap:12px;width:100%;height:36px;padding:0 8px;border:0;border-radius:var(--r-md);background:transparent;color:var(--rail-ink);font-size:14px;font-weight:500;text-align:left;white-space:nowrap;text-decoration:none}
.rail__item:hover{background:var(--rail-hover);text-decoration:none}
.rail__item[aria-current="page"]{background:var(--rail-active);font-weight:600}
.rail__item .i{color:var(--rail-ink-2)}
.rail__item[aria-current="page"] .i{color:var(--rail-ink)}
.rail__item .count,.rail__n{margin-left:auto}
.rail__n{font-size:12px;color:var(--rail-ink-2);font-variant-numeric:tabular-nums}
.rail__bottom{margin-top:auto;display:grid;gap:2px}
.rail__storage{display:grid;gap:6px;padding:8px;font-size:12px;color:var(--rail-ink-2)}
.rail__storage .row{display:flex;justify-content:space-between}
.meter{height:6px;border-radius:3px;background:var(--rail-hover);overflow:hidden}
.meter span{display:block;height:100%;width:21%;background:var(--rail-ink-2);border-radius:3px}
.rail__demo{margin:6px 4px 0;padding:10px 12px;border:1px solid var(--rail-active);border-radius:var(--r-md);font-size:12px;line-height:1.45;color:var(--rail-ink-2)}
.rail__demo strong{color:var(--rail-ink)}
.rail-scrim{display:none}

/* Bandeja: lista + lectura */
.bx{position:relative;display:grid;grid-template-columns:clamp(320px,36%,420px) minmax(0,1fr);height:100%;min-height:0;background:var(--surface)}
.bx__list{position:relative;display:flex;flex-direction:column;min-width:0;min-height:0;border-right:1px solid var(--line)}
.bx__head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;grid-template-areas:"all title actions" "search search search" "filters filters filters";align-items:center;gap:12px 8px;padding:16px 16px 12px;border-bottom:1px solid var(--line)}
.bx__all{grid-area:all;margin-left:-8px}
.bx__title{grid-area:title;font-size:18px;font-weight:650;letter-spacing:-.01em;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.bx__actions{grid-area:actions;display:flex;gap:2px;margin-right:-6px}
.bx__search{grid-area:search;position:relative;display:flex;align-items:center}
.bx__search .i{position:absolute;left:12px;color:var(--ink-2);pointer-events:none}
.bx__search input{width:100%;height:40px;padding:0 36px 0 38px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2);font-size:14px}
.bx__search input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none}
.bx__search input:focus{outline:none;border-color:var(--anil);background:var(--surface);box-shadow:0 0 0 3px var(--anil-soft)}
.bx__search .icon-btn{position:absolute;right:2px;width:36px;height:36px}
.bx__filters{grid-area:filters;justify-self:start}
.bx__scroll{flex:1;min-height:0;overflow-y:auto}
.bx__tip{margin:12px 16px;align-items:flex-start}
.bx__tip-text{flex:1;display:grid;gap:2px}
.bx__tip-text .link-btn{justify-self:start;margin-top:4px;font-size:13px}
.bx__tip .icon-btn{width:28px;height:28px;margin-top:-4px}
.bx__notice{margin:12px 16px 0}
.mail{position:relative;border-bottom:1px solid var(--line)}
.mail__open{display:grid;grid-template-columns:8px minmax(0,1fr) minmax(32px,auto);column-gap:12px;row-gap:1px;width:100%;padding:12px 16px 12px 40px;border:0;background:transparent;color:var(--ink);text-align:left}
.mail__open:hover{background:var(--surface-2)}
.mail__dot{grid-column:1;grid-row:1;align-self:center;display:grid}
.mail__from{grid-column:2;grid-row:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-weight:500}
.mail__n{margin-left:4px;font-size:12px;font-weight:600;color:var(--ink-2)}
.mail__time{grid-column:3;grid-row:1;justify-self:end;align-self:center;display:flex;align-items:center;gap:4px;font-size:13px;color:var(--ink-2);white-space:nowrap}
.mail__time .i{color:var(--ink-3)}
.mail__subject{grid-column:2/4;grid-row:2;display:flex;align-items:center;gap:8px;min-width:0;font-size:14px}
.mail__subject-text{min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.mail__snippet{grid-column:2;grid-row:3;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:13px;color:var(--ink-2)}
.mail.is-unread .mail__from{font-weight:700}.mail.is-unread .mail__subject{font-weight:600}.mail.is-unread .mail__time{color:var(--ink);font-weight:600}
.mail.is-selected .mail__open{background:var(--anil-soft);box-shadow:inset 3px 0 0 var(--anil)}
.mail.is-picked .mail__open{background:var(--anil-soft)}
.mail__star{position:absolute;right:8px;bottom:8px;width:32px;height:32px}
.mail__star .i,.rd__star .i{color:var(--ink-3)}
.mail__star[aria-pressed="true"] .i,.rd__star[aria-pressed="true"] .i{color:var(--warn);fill:currentColor}
.pick{position:absolute;left:6px;top:8px;display:inline-grid;place-items:center;width:32px;height:32px;border-radius:var(--r-sm);cursor:pointer}
.pick:hover{background:var(--surface-2)}
.pick input{appearance:none;-webkit-appearance:none;width:18px;height:18px;margin:0;border:1.5px solid var(--ink-3);border-radius:5px;background:var(--surface);cursor:pointer;display:grid;place-items:center}
.pick input:checked{background:var(--anil);border-color:var(--anil)}
.pick input:checked::after{content:"";width:9px;height:5px;border-left:2.5px solid var(--anil-ink);border-bottom:2.5px solid var(--anil-ink);transform:translateY(-1px) rotate(-45deg)}
.pick input:indeterminate{background:var(--anil);border-color:var(--anil)}
.pick input:indeterminate::after{content:"";width:9px;height:2.5px;background:var(--anil-ink);border-radius:1px}
.bx__all.pick{position:static}
.bx__selbar{position:absolute;top:0;left:0;right:0;z-index:3;display:flex;flex-wrap:wrap;align-items:center;gap:4px;min-height:64px;padding:14px 12px 10px 8px;background:var(--surface);border-bottom:1px solid var(--line)}
.bx__selcount{padding-left:4px;font-size:13px;font-weight:600;white-space:nowrap}
.bx__end{display:grid;justify-items:center;gap:12px;padding:24px 16px 32px;text-align:center;font-size:13px;color:var(--ink-2)}
.empty{display:grid;justify-items:center;gap:10px;padding:56px 24px;text-align:center;color:var(--ink-2)}
.empty>.i{width:32px;height:32px;color:var(--ink-3)}
.empty h2{font-size:16px;font-weight:650;color:var(--ink)}
.empty ul{display:grid;gap:4px;font-size:13px;text-align:left;list-style:disc;padding-left:18px}

.menu{position:fixed;z-index:20;display:grid;min-width:220px;padding:4px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--shadow-pop)}
.menu__t{padding:8px 12px 4px;font-size:12px;font-weight:600;color:var(--ink-2)}
.menu button{display:flex;align-items:center;gap:12px;height:38px;padding:0 12px;border:0;border-radius:var(--r-sm);background:none;color:var(--ink);font-size:14px;text-align:left;white-space:nowrap}
.menu button:hover,.menu button:focus-visible{background:var(--surface-2);outline:none}
.menu .i{color:var(--ink-2)}

.rd{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--surface)}
.rd__bar{position:relative;display:flex;align-items:center;gap:4px;min-height:57px;padding:8px 16px;border-bottom:1px solid var(--line)}
.rd__back{display:none}
.rd__scroll{flex:1;min-height:0;overflow-y:auto}
.rd__inner{max-width:760px;padding:32px 32px 48px}
.rd__top{display:flex;align-items:flex-start;gap:12px}
.rd__subject{flex:1;min-width:0;font-size:24px;font-weight:650;letter-spacing:-.015em;line-height:1.25;text-wrap:balance}
.rd__labels{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.rd__earlier{display:flex;align-items:center;gap:12px;width:100%;margin-top:24px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--r-md);background:transparent;color:var(--ink-2);font-size:13px;font-weight:600;text-align:left}
.rd__earlier:hover{background:var(--surface-2);color:var(--ink)}
.rd__faces{display:flex}
.rd__faces .avatar{width:26px;height:26px;font-size:10px;border:2px solid var(--surface)}
.rd__faces .avatar+.avatar{margin-left:-8px}
.msg{margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}
.msg__head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px}
.msg__who{display:grid;gap:2px;min-width:0}
.msg__from{display:flex;flex-wrap:wrap;align-items:baseline;column-gap:8px}
.msg__email,.msg__to{font-size:13px;color:var(--ink-2);overflow-wrap:anywhere}
.msg__time{align-self:start;font-size:13px;color:var(--ink-2);white-space:nowrap}
.msg__body{max-width:70ch;margin-top:20px;font-size:15px;line-height:1.65}
.msg__body p+p{margin-top:1em}
.msg--old .msg__body{color:var(--ink-2)}
.files{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.file{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 14px 0 10px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2);font-size:13px;color:var(--ink)}
.file:hover{border-color:var(--ink-3)}
.file .i{color:var(--ink-2)}
.file span{display:grid;line-height:1.25;text-align:left}
.file small{color:var(--ink-2)}
.rd__quick{display:grid;gap:8px;max-width:70ch;margin-top:32px}
.rd__box{min-height:88px;padding:12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font-size:15px;line-height:1.5;overflow-wrap:anywhere;cursor:text;white-space:pre-wrap}
.rd__box:focus{outline:none;border-color:var(--anil);box-shadow:0 0 0 3px var(--anil-soft)}
.rd__box:empty::before{content:attr(data-placeholder);color:var(--ink-3);pointer-events:none}
.rd__quick-foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:4px}
.rd__quick-foot .address{font-size:15px}
.rd__spam{margin-top:20px}

.fab{display:none}

/* Redactar */
.compose{width:min(720px,calc(100vw - 32px));max-height:calc(100vh - 48px);padding:0;border:0;border-radius:var(--r-lg);background:var(--surface);color:var(--ink);box-shadow:var(--shadow-pop)}
.compose::backdrop{background:var(--scrim)}
.compose form{display:flex;flex-direction:column;max-height:calc(100vh - 48px)}
.cp__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px 14px 20px;border-bottom:1px solid var(--line)}
.cp__head h2{font-size:17px;font-weight:650}
.cp__field{display:grid;grid-template-columns:64px minmax(0,1fr) auto;align-items:center;column-gap:12px;min-height:46px;padding:2px 20px;border-bottom:1px solid var(--line)}
.cp__field:focus-within{box-shadow:inset 0 -2px 0 var(--focus)}
.cp__field.is-bad{box-shadow:inset 0 -2px 0 var(--bad)}
.cp__label{font-size:13px;font-weight:600;color:var(--ink-2)}
.cp__input{width:100%;height:42px;padding:0;border:0;background:transparent;font-size:15px}
.cp__input:focus{outline:none}
.cp__from{width:auto;max-width:100%;padding-right:22px;font-weight:600;appearance:none;-webkit-appearance:none;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 10px) 19px,calc(100% - 5px) 19px;background-size:5px 5px;background-repeat:no-repeat}
.cp__subject{font-weight:600}
.cp__error{grid-column:2/-1;margin:-4px 0 8px;font-size:12px;font-weight:600;color:var(--bad)}
.cp__body{flex:1;min-height:220px;padding:18px 20px;border:0;background:transparent;font-size:15px;line-height:1.6;resize:none}
.cp__body:focus{outline:none}
.cp__sign{margin:0 20px 16px;padding-top:10px;border-top:1px solid var(--line);width:fit-content;min-width:200px;font-size:13px;line-height:1.55;color:var(--ink-2)}
.cp__sign strong{color:var(--ink)}
.cp__foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 20px;border-top:1px solid var(--line)}
.cp__state{font-size:13px;color:var(--ink-2)}

.toast{position:fixed;left:50%;bottom:24px;z-index:60;display:flex;align-items:center;gap:14px;max-width:calc(100% - 32px);transform:translate(-50%,16px);opacity:0;padding:12px 16px;border-radius:var(--r-md);background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;box-shadow:var(--shadow-pop);pointer-events:none;transition:opacity .2s,transform .2s}
.toast.is-on{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.toast button{border:0;background:none;padding:0;color:var(--azul);font-weight:700}

@media (max-width:1180px){.rd__lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.rd__bar .btn--sm{width:36px;padding:0}.rd__inner{padding:24px}}
@media (max-width:1024px){
  .shell{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);height:100dvh}
  .appbar{display:flex;align-items:center;gap:8px;height:56px;padding:0 8px;background:var(--surface);border-bottom:1px solid var(--line)}
  .appbar__title{flex:1;min-width:0;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .rail{position:fixed;inset:0 auto 0 0;width:284px;z-index:30;transform:translateX(-105%);visibility:hidden;transition:transform .2s,visibility .2s;box-shadow:var(--shadow-pop)}
  .shell.rail-open .rail{transform:none;visibility:visible}
  .rail-scrim{position:fixed;inset:0;z-index:29;background:var(--scrim)}
  .shell.rail-open .rail-scrim{display:block}
}
@media (max-width:760px){
  .bx{grid-template-columns:minmax(0,1fr)}
  .bx__list{border-right:0}
  .bx__head{grid-template-areas:"all filters actions" "search search search";padding:12px 16px}
  .bx__title{display:none}
  .rd{position:fixed;inset:0;z-index:25;transform:translateX(102%);visibility:hidden;transition:transform .22s ease,visibility .22s}
  .shell.is-reading .rd{transform:none;visibility:visible}
  .rd__back{display:inline-grid}
  .rd__bar{padding:8px}
  .rd__inner{padding:20px 16px 40px}
  .rd__subject{font-size:21px}
  .mail.is-selected .mail__open{background:transparent;box-shadow:none}
  .bx__scroll{padding-bottom:88px}
  .fab{display:inline-flex;position:fixed;right:16px;bottom:16px;z-index:20;height:52px;padding:0 20px;border-radius:999px;box-shadow:var(--shadow-pop);font-size:15px}
  .compose{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;border-radius:0}
  .compose form{height:100%;max-height:100dvh}
  .cp__field{grid-template-columns:52px minmax(0,1fr) auto;padding:2px 16px}
  .cp__foot .btn--primary{flex:1}
}