/* Eunoia — Uber-inspired: black & white, bold type, pill buttons, green for savings */
:root {
  --black: #000; --ink: #141414; --g800: #333; --g600: #5e5e5e; --g400: #a6a6a6;
  --g200: #e2e2e2; --g100: #f3f3f3; --white: #fff;
  --green: #06c167; --green-d: #05a357; --green-bg: #e6f9ef;
  --amber: #ffc043; --amber-bg: #fff5de; --blue: #276ef1; --blue-bg: #eaf1fe; --red: #e11900;
  --radius: 14px; --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 6px 24px rgba(0,0,0,.06);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--white); font-size: 16px; line-height: 1.5; }
a { color: inherit; }
img { max-width: 100%; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 520px; }
.section { padding-top: 32px; padding-bottom: 48px; }
.center { text-align: center; }
.inline { display: inline; margin: 0; }
.muted { color: var(--g600); }
.muted-light { color: var(--g400); }
.small, small { font-size: 13px; }
.green { color: var(--green); }
.r { text-align: right; }
.grow { flex: 1; }
.row-gap { display: flex; gap: 10px; flex-wrap: wrap; }

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 8px; }
.h-xxl { font-size: 72px; font-weight: 800; }
.h-xl { font-size: 36px; font-weight: 800; }
.h-md { font-size: 20px; font-weight: 700; }
.h-sm { font-size: 17px; font-weight: 700; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 12px; font-weight: 600; color: var(--g400); margin: 0 0 8px; }
.eyebrow.dark { color: var(--g600); }
.lead { font-size: 19px; color: #cfcfcf; max-width: 520px; }
.lead.dark { color: var(--g600); margin: 8px auto 24px; }

/* Top bar */
.topbar { background: var(--black); color: var(--white); position: sticky; top: 0; z-index: 50; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 22px; letter-spacing: -0.03em; }
.topnav { display: flex; align-items: center; gap: 18px; }
.topnav > a:not(.btn) { text-decoration: none; font-weight: 500; font-size: 15px; color: #e8e8e8; }
.topnav > a:not(.btn):hover { color: var(--white); }
.bell { position: relative; display: flex; color: var(--white) !important; }
.badge { position: absolute; top: -6px; right: -8px; background: var(--green); color: var(--black); font-size: 11px; font-weight: 700; border-radius: 10px; padding: 1px 6px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--g800); color: var(--white); border: 0; font: 700 15px var(--font); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.avatar.sm { width: 32px; height: 32px; font-size: 13px; background: var(--g100); color: var(--ink); cursor: default; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 999px; padding: 12px 22px; font: 600 15px var(--font); text-decoration: none; cursor: pointer; transition: transform .06s, background .15s, opacity .15s; white-space: nowrap; }
.btn:active { transform: scale(.98); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 16px 28px; font-size: 17px; }
.btn-block { width: 100%; }
.btn-dark { background: var(--black); color: var(--white); }
.btn-dark:hover { background: var(--g800); }
.btn-light { background: var(--white); color: var(--black); }
.btn-light:hover { background: var(--g200); }
.btn-ghost-light { background: transparent; color: var(--white); box-shadow: inset 0 0 0 1.5px #555; }
.btn-ghost-light:hover { box-shadow: inset 0 0 0 1.5px var(--white); }
.btn-outline { background: var(--white); color: var(--black); box-shadow: inset 0 0 0 1.5px var(--g200); }
.btn-outline:hover { background: var(--g100); }
.btn-green { background: var(--green); color: var(--black); }
.btn-green:hover { background: var(--green-d); }
.btn-wa { background: #25d366; color: #062e16; }
.btn-text-danger { background: transparent; color: var(--red); }
.icon-btn { background: var(--g100); border: 0; width: 28px; height: 28px; border-radius: 50%; font-size: 18px; line-height: 1; cursor: pointer; color: var(--g600); }
.icon-btn:hover { background: var(--g200); color: var(--black); }

/* Pills */
.pill { display: inline-flex; align-items: center; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.pill-green { background: var(--green-bg); color: #047a42; }
.pill-amber { background: var(--amber-bg); color: #8a5a00; }
.pill-blue { background: var(--blue-bg); color: #1a4fb3; }
.pill-grey { background: var(--g100); color: var(--g600); }
.pill-dark { background: var(--black); color: var(--white); }

/* Cards & forms */
.card { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid #efefef; padding: 22px; margin-bottom: 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form.compact { gap: 10px; margin-bottom: 10px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 14px; }
.opt { font-weight: 400; color: var(--g400); font-size: 12px; }
input, select, textarea { font: 400 16px var(--font); color: var(--ink); background: var(--g100); border: 2px solid transparent; border-radius: 10px; padding: 12px 14px; width: 100%; outline: none; transition: border .15s, background .15s; }
input:focus, select:focus, textarea:focus { border-color: var(--black); background: var(--white); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.deadline-box { background: var(--black); color: var(--white); border-radius: var(--radius); padding: 16px; }
.deadline-box input { background: #222; color: var(--white); color-scheme: dark; }
.deadline-box input:focus { border-color: var(--green); background: #222; }
.deadline-box .muted { color: var(--g400); margin: 8px 0 0; }
.seg { display: inline-flex; background: var(--g100); border-radius: 999px; padding: 4px; margin-bottom: 20px; }
.seg a { padding: 8px 18px; border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 14px; color: var(--g600); }
.seg a.on { background: var(--black); color: var(--white); }

/* Toasts */
.toasts { position: fixed; top: 72px; left: 0; right: 0; z-index: 60; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { pointer-events: auto; background: var(--black); color: var(--white); padding: 12px 16px 12px 18px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.25); font-weight: 500; display: flex; gap: 12px; align-items: center; max-width: 560px; width: 100%; animation: slide .25s ease-out; }
.toast-success { border-left: 4px solid var(--green); }
.toast-error { border-left: 4px solid var(--red); }
.toast-info { border-left: 4px solid var(--blue); }
.toast-x { margin-left: auto; background: none; border: 0; color: var(--g400); font-size: 20px; cursor: pointer; }
@keyframes slide { from { transform: translateY(-10px); opacity: 0; } }

/* Home */
.hero { background: var(--black); color: var(--white); padding: 56px 0 72px; }
.hero h1 { font-size: 64px; font-weight: 800; letter-spacing: -0.04em; margin-bottom: 18px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-card { background: #111; border: 1px solid #262626; border-radius: var(--radius-lg); padding: 24px; }
.hero-card h3 { font-size: 20px; margin: 12px 0 18px; }
.mock-row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; }
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.mock-stats div { background: #1b1b1b; border-radius: 12px; padding: 12px; }
.mock-stats b { display: block; font-size: 18px; }
.mock-stats small { color: var(--g400); }
.mock-list div { display: flex; justify-content: space-between; padding: 10px 0; border-top: 1px solid #262626; font-size: 14px; color: #ddd; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 20px; }
.step { background: var(--g100); border-radius: var(--radius-lg); padding: 22px; }
.step span { display: inline-flex; width: 32px; height: 32px; border-radius: 50%; background: var(--black); color: var(--white); align-items: center; justify-content: center; font-weight: 700; margin-bottom: 14px; }
.step h3 { font-size: 18px; }
.step p { color: var(--g600); font-size: 15px; margin: 0; }
.band { background: var(--green); padding: 40px 0; }
.band-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.band h2 { font-size: 28px; font-weight: 800; }
.band p { margin: 0; }

/* Dashboard */
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 20px; }
.savings-card { background: var(--black); color: var(--white); border-radius: var(--radius-lg); padding: 20px 22px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
.savings-card b { font-size: 28px; color: var(--green); }
.pool-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.pool-card { text-decoration: none; display: block; margin: 0; transition: transform .12s, box-shadow .12s; }
.pool-card:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,.1); }
.pool-card-top { display: flex; gap: 6px; margin-bottom: 12px; }
.pool-card h3 { font-size: 19px; margin-bottom: 4px; }
.pool-card-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 14px; color: var(--g600); margin-top: 14px; }
.pool-card-meta b { color: var(--ink); }
.pool-card-meta .countdown { color: var(--ink); font-weight: 600; }
.nudge { margin-top: 14px; font-size: 13px; background: var(--amber-bg); color: #6b4600; padding: 8px 12px; border-radius: 10px; }
.nudge-green { background: var(--green-bg); color: #047a42; }
.empty { text-align: center; padding: 48px 24px; }
.empty p { max-width: 380px; margin: 8px auto 20px; }

/* Pool page */
.pool-hero { background: var(--black); color: var(--white); padding: 28px 0 32px; }
.pool-hero h1 { font-size: 40px; font-weight: 800; margin: 12px 0 4px; }
.pool-hero-top { display: flex; gap: 12px; align-items: center; }
.pool-desc { color: #d6d6d6; max-width: 640px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-stats > div { background: #161616; border: 1px solid #262626; border-radius: var(--radius); padding: 12px 16px; min-width: 110px; }
.hero-stats b { display: block; font-size: 22px; font-weight: 700; }
.hero-stats small { color: var(--g400); }
.hero-countdown { background: var(--green) !important; border-color: var(--green) !important; color: var(--black); }
.hero-countdown small { color: #0b3d22 !important; }
.pool-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; padding-top: 24px; padding-bottom: 48px; }
.share-card { border: 2px solid var(--black); }
.share-row { display: flex; gap: 8px; margin: 12px 0; }
.share-row input { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 14px; }
.share-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cta-card { background: var(--g100); border: 0; box-shadow: none; }
table.items { width: 100%; border-collapse: collapse; margin: 6px 0 16px; font-size: 15px; }
table.items th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--g600); font-weight: 600; padding: 8px 6px; border-bottom: 1px solid var(--g200); }
table.items th.r { text-align: right; }
table.items td { padding: 12px 6px; border-bottom: 1px solid var(--g100); vertical-align: middle; }
table.items td small { display: block; color: var(--g600); }
table.items tfoot td { border: 0; font-weight: 600; padding-top: 14px; }
tr.struck td { opacity: .45; text-decoration: line-through; }
.add-item { background: var(--g100); padding: 16px; border-radius: var(--radius); }
.add-item input { background: var(--white); }
.pay-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--black); color: var(--white); border-radius: var(--radius); padding: 14px 14px 14px 18px; margin-top: 16px; }
.pay-bar small { display: block; color: var(--g400); }
.pay-bar b { font-size: 22px; }
.notice { border-radius: 12px; padding: 12px 14px; margin: 8px 0 12px; font-size: 15px; }
.notice-green { background: var(--green-bg); color: #035c32; }
.notice-grey { background: var(--g100); color: var(--g800); }
.winner { display: flex; justify-content: space-between; gap: 12px; background: var(--black); color: var(--white); border-radius: var(--radius); padding: 16px 18px; margin: 12px 0; }
.winner small { display: block; color: var(--g400); }
.winner b { font-size: 20px; display: block; }
.bid-list, .basket, .members, .notif-list { list-style: none; padding: 0; margin: 0; }
.bid-list li { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-top: 1px solid var(--g100); }
.bid-list li > div:first-child { flex: 1; }
.bid-list small { display: block; color: var(--g600); }
.bid-list li.won { background: var(--green-bg); margin: 0 -10px; padding: 14px 10px; border-radius: 12px; }
.basket li { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-top: 1px solid var(--g100); font-size: 15px; }
.basket small, .members small { display: block; color: var(--g600); font-size: 12px; }
.members li { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-top: 1px solid var(--g100); font-size: 15px; }
.notif-list li { padding: 14px 4px; border-top: 1px solid var(--g100); }
.notif-list li:first-child { border-top: 0; }
.notif-list li.unread { font-weight: 600; }
.notif-list a { text-decoration: none; }
.notif-list small { display: block; color: var(--g400); font-weight: 400; }

.footer { color: var(--g400); font-size: 13px; padding: 28px 0 40px; border-top: 1px solid var(--g100); }

/* Bottom tab bar (mobile, app-like) */
.tabbar { display: none; }
@media (max-width: 760px) {
  .h-xl { font-size: 30px; }
  .hero { padding: 36px 0 48px; }
  .hero h1 { font-size: 44px; }
  .hero-grid, .pool-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .band-inner { flex-direction: column; align-items: flex-start; }
  .pool-hero h1 { font-size: 30px; }
  .hero-stats > div { flex: 1 1 calc(50% - 10px); }
  .topnav > a:not(.bell):not(.btn) , .topnav .btn, .hide-sm { display: none; }
  body:not(.has-tabbar) .topnav > a { display: inline-flex; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .grid3 label:first-child { grid-column: 1 / -1; }
  .pool-list { grid-template-columns: 1fr; }
  .page-head .btn { display: none; }
  body.has-tabbar { padding-bottom: 76px; }
  .tabbar { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: var(--white); border-top: 1px solid var(--g200); z-index: 50; padding: 6px 0 calc(6px + env(safe-area-inset-bottom)); }
  .tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; font-weight: 600; text-decoration: none; color: var(--g600); position: relative; }
  .tabbar svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
  .tabbar .tab-cta svg { background: var(--black); color: var(--white); border-radius: 50%; padding: 4px; width: 32px; height: 32px; margin-top: -4px; }
  .tabbar .dot { position: absolute; top: 0; right: calc(50% - 16px); width: 8px; height: 8px; background: var(--green); border-radius: 50%; }
  .footer { display: none; }
}
@media (max-width: 420px) {
  .grid2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .pay-bar { flex-direction: column; align-items: stretch; text-align: center; }
}