:root {
  --indigo: #4f46e5;
  --indigo-dark: #4338ca;
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f6f7fb;
  --card: #ffffff;
  --radius: 16px;
  --maxw: 520px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  padding-bottom: 88px;
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 100vh;
}

/* App bar */
.appbar {
  position: sticky; top: 0; z-index: 30;
  background: var(--indigo);
  color: #fff;
  padding: 14px 16px 8px;
  max-width: var(--maxw); margin: 0 auto;
  border-radius: 0 0 18px 18px;
  box-shadow: 0 4px 14px rgba(79,70,229,.25);
}
.appbar-row { display: flex; justify-content: space-between; align-items: center; }
.appbar-title { font-size: 20px; font-weight: 700; }
.appbar-sub { font-size: 12px; opacity: .85; }
.icon-btn {
  background: rgba(255,255,255,.18); border: 0; color: #fff;
  width: 38px; height: 38px; border-radius: 10px; font-size: 18px;
}
.period-tabs { display: flex; gap: 6px; margin-top: 12px; }
.period-tabs button {
  flex: 1; background: rgba(255,255,255,.16); color: #fff; border: 0;
  padding: 7px 0; border-radius: 9px; font-size: 13px; font-weight: 600;
}
.period-tabs button.active { background: #fff; color: var(--indigo); }

/* Menu sheet */
.menu-sheet {
  position: sticky; top: 0; z-index: 25;
  display: none; flex-direction: column;
  background: #fff; border-bottom: 1px solid var(--line);
  max-width: var(--maxw); margin: 0 auto;
}
.menu-sheet.open { display: flex; }
.menu-sheet button {
  text-align: left; background: none; border: 0; padding: 14px 18px;
  font-size: 15px; border-bottom: 1px solid var(--line);
}

main { padding: 14px; }
.loading { text-align: center; color: var(--muted); padding: 40px; }

/* Cards */
.card {
  background: var(--card); border-radius: var(--radius); padding: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,.05); margin-bottom: 14px;
}
.section-title { font-size: 13px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: .04em; margin: 4px 0 10px; }
.card.alert { background: #fff7ed; border: 1px solid #fed7aa; }
.card.alert .section-title { color: var(--amber); }

/* KPI grid */
.kpi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.kpi {
  background: var(--card); border-radius: var(--radius); padding: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
.kpi .label { font-size: 12px; color: var(--muted); }
.kpi .value { font-size: 22px; font-weight: 700; margin-top: 2px; }
.kpi.primary { background: linear-gradient(135deg, #4f46e5, #6366f1); color: #fff; }
.kpi.primary .label { color: rgba(255,255,255,.85); }
.kpi .sub { font-size: 11px; color: var(--muted); margin-top: 4px; }
.kpi.primary .sub { color: rgba(255,255,255,.85); }
.pos { color: var(--green); }
.neg { color: var(--red); }

/* List rows */
.list-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 13px 0; border-bottom: 1px solid var(--line);
}
.list-row:last-child { border-bottom: 0; }
.list-row .main { font-weight: 600; font-size: 15px; }
.list-row .meta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.amount { font-weight: 700; font-size: 15px; }

.badge { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 999px; }
.badge.paid { background: #dcfce7; color: var(--green); }
.badge.partial { background: #fef3c7; color: var(--amber); }
.badge.unpaid { background: #fee2e2; color: var(--red); }

/* Buttons */
.btn {
  display: block; width: 100%; text-align: center; border: 0; cursor: pointer;
  background: var(--indigo); color: #fff; padding: 14px; border-radius: 12px;
  font-size: 15px; font-weight: 700;
}
.btn.secondary { background: #eef2ff; color: var(--indigo); }
.btn.danger { background: #fee2e2; color: var(--red); }
.btn.success { background: var(--green); color: #fff; }
.btn.outline { background: #fff; border: 1px solid var(--line); color: var(--ink); }
.btn-sm { padding: 9px 14px; font-size: 13px; width: auto; display: inline-block; }
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; }

/* Forms */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 16px; background: #fff;
}
.field textarea { min-height: 60px; resize: vertical; }
.field-row { display: flex; gap: 10px; }
.field-row .field { flex: 1; }

.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
.empty .big { font-size: 34px; margin-bottom: 8px; }

/* Bottom nav */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
  max-width: var(--maxw); margin: 0 auto;
  background: #fff; border-top: 1px solid var(--line);
  display: flex; justify-content: space-around; align-items: center;
  padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
}
.bottom-nav button {
  background: none; border: 0; color: var(--muted); font-size: 11px;
  display: flex; flex-direction: column; align-items: center; gap: 2px; flex: 1;
}
.bottom-nav button span { font-size: 20px; }
.bottom-nav button.active { color: var(--indigo); font-weight: 700; }
.bottom-nav .fab {
  background: var(--indigo); color: #fff; width: 54px; height: 54px;
  border-radius: 50%; margin-top: -22px; box-shadow: 0 4px 12px rgba(79,70,229,.4);
  flex: 0 0 auto;
}
.bottom-nav .fab span { font-size: 28px; }

/* Modal */
.modal-host { position: fixed; inset: 0; z-index: 60; display: none; }
.modal-host.open { display: block; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.4); }
.modal {
  position: absolute; bottom: 0; left: 0; right: 0;
  max-width: var(--maxw); margin: 0 auto;
  background: var(--bg); border-radius: 20px 20px 0 0;
  max-height: 92vh; overflow-y: auto; padding: 18px 16px 30px;
  animation: slideup .22s ease;
}
@keyframes slideup { from { transform: translateY(100%); } to { transform: translateY(0); } }
.modal-handle { width: 40px; height: 4px; background: #d1d5db; border-radius: 2px; margin: 0 auto 14px; }
.modal h2 { margin: 0 0 14px; font-size: 19px; }

/* Line item builder */
.line-item {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px; margin-bottom: 10px;
}
.line-item .li-head { display: flex; justify-content: space-between; align-items: center; }
.li-remove { background: none; border: 0; color: var(--red); font-size: 13px; }

/* AI / markdown output */
.md { line-height: 1.55; font-size: 15px; }
.md h2 { font-size: 16px; color: var(--indigo); margin: 16px 0 6px; }
.md ul { padding-left: 20px; margin: 6px 0; }
.md li { margin-bottom: 4px; }
.md code { background: #eef2ff; padding: 1px 5px; border-radius: 5px; font-size: 13px; }
.md strong { color: var(--ink); }

/* Trend chart */
.chart { width: 100%; height: 78px; display: block; }

/* Card header with an action button (e.g. Stock levels + add) */
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.add-btn {
  background: var(--indigo); color: #fff; border: 0; width: 30px; height: 30px;
  border-radius: 8px; font-size: 20px; line-height: 1; flex: 0 0 auto;
}

/* Toast */
.toast {
  position: fixed; bottom: 100px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 11px 18px; border-radius: 999px;
  font-size: 14px; z-index: 80; opacity: 0; pointer-events: none; transition: opacity .2s;
  max-width: 90%;
}
.toast.show { opacity: 1; }

.seg { display: flex; gap: 6px; margin-bottom: 14px; }
.seg button { flex: 1; padding: 9px; border: 1px solid var(--line); background: #fff;
  border-radius: 9px; font-weight: 600; font-size: 13px; color: var(--muted); }
.seg button.active { background: var(--indigo); color: #fff; border-color: var(--indigo); }

/* ---------- Auth gate ---------- */
body.signed-out { padding-bottom: 0; }
body.signed-out .appbar,
body.signed-out .bottom-nav,
body.signed-out .menu-sheet { display: none !important; }

.auth-wrap { min-height: 100vh; display: flex; align-items: center;
  justify-content: center; padding: 24px 18px; }
.auth-card { background: var(--card); border-radius: var(--radius);
  padding: 28px 22px; width: 100%; box-shadow: 0 8px 30px rgba(17,24,39,.08); }
.auth-logo { font-size: 26px; font-weight: 800; color: var(--indigo);
  text-align: center; }
.auth-tagline { text-align: center; color: var(--muted); font-size: 14px;
  margin: 4px 0 22px; }
.auth-err { color: var(--red); font-size: 13px; min-height: 18px; margin-bottom: 6px; }
.auth-switch { text-align: center; font-size: 14px; color: var(--muted);
  margin-top: 16px; }
.auth-switch a { color: var(--indigo); font-weight: 700; cursor: pointer; }
.auth-show { display: flex; align-items: center; gap: 7px; font-size: 13px;
  color: var(--muted); font-weight: 500; margin-top: 8px; cursor: pointer; }
.auth-show input { width: auto; margin: 0; }
.auth-sep { margin: 0 4px; color: var(--line); }

/* ---------- Plan / paywall ---------- */
.pill { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .04em;
  padding: 2px 8px; border-radius: 999px; background: #eef2ff; color: var(--indigo);
  vertical-align: middle; }
.pill.pro { background: linear-gradient(135deg, #4f46e5, #7c3aed); color: #fff; }
.pro-list { list-style: none; padding: 0; margin: 0 0 12px; }
.pro-list li { padding: 7px 0; font-size: 15px; border-bottom: 1px solid var(--line); }
.pro-list li:last-child { border-bottom: 0; }
.pro-price { text-align: center; font-size: 28px; font-weight: 800; color: var(--ink); }
.pro-price span { font-size: 14px; font-weight: 600; color: var(--muted); }
.btn.whatsapp { background: #25d366; color: #fff; }
.wa-mini { background: #25d366; color: #fff; border: 0; border-radius: 8px;
  font-size: 12px; font-weight: 700; padding: 5px 10px; cursor: pointer; white-space: nowrap; }

.auth-buy { text-align: center; font-size: 13px; font-weight: 600; color: var(--indigo);
  background: #eef2ff; border-radius: 10px; padding: 8px 12px; margin: -6px 0 14px; }

/* ---------- landing / pricing (pre-login) ---------- */
.btn.ghost { background: transparent; color: var(--indigo); border: 1.5px solid var(--line); }
.btn.ghost:disabled { color: var(--muted); border-color: var(--line); opacity: .7; }

.landing { max-width: var(--maxw); margin: 0 auto; padding: 0 16px 40px; }
.land-hero { text-align: center; padding: 38px 6px 24px; }
.land-hero.compact { padding: 16px 0 8px; }
.land-top { display: flex; align-items: center; justify-content: space-between; }
.land-login { color: var(--indigo); font-weight: 700; font-size: 14px; cursor: pointer; }
.land-logo { font-weight: 800; font-size: 20px; color: var(--indigo); letter-spacing: -.5px; }
.land-hero h1 { font-size: 27px; line-height: 1.2; margin: 16px 0 10px; color: var(--ink);
  letter-spacing: -.5px; }
.land-hero.compact h1 { margin: 14px 0 8px; }
.land-sub { color: var(--muted); font-size: 15px; margin: 0 auto 4px; max-width: 360px; }
.land-sub2 { color: var(--muted); font-size: 14px; text-align: center; margin: -4px 0 16px; }
.land-cta { display: flex; flex-direction: column; gap: 10px; max-width: 320px; margin: 0 auto; }

.pricing-first { padding-top: 14px; }
.land-free { text-align: center; margin-top: 16px; }
.land-free .btn { max-width: 340px; margin: 0 auto; }

.land-section { padding: 22px 0; }
.land-section h2 { font-size: 19px; text-align: center; margin: 0 0 16px; color: var(--ink); }
.feat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.feat { background: var(--card); border-radius: 14px; padding: 14px; border: 1px solid var(--line); }
.feat-i { font-size: 22px; }
.feat-t { font-weight: 700; font-size: 14px; margin: 6px 0 3px; color: var(--ink); }
.feat-d { font-size: 12px; color: var(--muted); line-height: 1.4; }

.price-grid { display: flex; flex-direction: column; gap: 14px; }
.price-card { position: relative; background: var(--card); border: 1.5px solid var(--line);
  border-radius: 16px; padding: 18px; }
.price-card.featured { border-color: var(--indigo); box-shadow: 0 6px 20px rgba(79,70,229,.12); }
.price-card.sold { opacity: .6; }
.price-name { font-weight: 700; font-size: 14px; color: var(--muted); text-transform: uppercase;
  letter-spacing: .5px; }
.price-amt { font-size: 30px; font-weight: 800; color: var(--ink); margin: 4px 0; letter-spacing: -1px; }
.price-amt span { font-size: 14px; font-weight: 600; color: var(--muted); }
.price-save { display: inline-block; font-size: 12px; font-weight: 700; color: var(--green);
  background: #ecfdf3; border-radius: 999px; padding: 3px 10px; margin-bottom: 10px; }
.price-feats { list-style: none; padding: 0; margin: 8px 0 14px; }
.price-feats li { font-size: 13px; color: var(--ink); padding: 4px 0; }
.price-badge { position: absolute; top: 14px; right: 14px; font-size: 11px; font-weight: 700;
  background: #eef2ff; color: var(--indigo); border-radius: 999px; padding: 3px 9px; }
.price-badge.best { background: var(--indigo); color: #fff; }
.price-badge.out { background: #fee2e2; color: var(--red); }

.land-fine { font-size: 12px; color: var(--muted); text-align: center; margin: 14px 0 0; line-height: 1.5; }
.land-foot { text-align: center; padding: 18px 0 4px; }
.land-foot .btn { max-width: 320px; margin: 0 auto; }
.land-foot-link { font-size: 14px; color: var(--muted); margin-top: 12px; }
.land-foot-link a, .auth-switch a { color: var(--indigo); font-weight: 600; cursor: pointer; }
.land-top-right { display: flex; align-items: center; gap: 16px; }
.land-view { font-size: 13px; font-weight: 600; color: var(--muted); cursor: pointer; }

/* ============ DESKTOP / LAPTOP VIEW (body.desktop) ============ */
/* Phone column → left sidebar + wide content. Toggled by the view switcher;
   defaults on automatically at ≥900px (see inline script in index.html). */
body.desktop { max-width: none; padding-bottom: 0; }

/* --- signed in: sidebar + top bar + wide content --- */
body.desktop:not(.signed-out) .appbar {
  margin-left: 240px; max-width: none; border-radius: 0; padding: 14px 36px 10px;
  box-shadow: 0 1px 0 rgba(0,0,0,.06);
}
body.desktop:not(.signed-out) .appbar #menuBtn { display: none; }
body.desktop:not(.signed-out) .period-tabs { max-width: 380px; }
body.desktop:not(.signed-out) main {
  margin-left: 240px; max-width: 1080px; padding: 28px 36px;
}
body.desktop:not(.signed-out) .kpi-grid { grid-template-columns: repeat(4, 1fr); }

/* Bottom nav → fixed left sidebar */
body.desktop:not(.signed-out) .bottom-nav {
  flex-direction: column; justify-content: flex-start; align-items: stretch;
  top: 0; bottom: 0; left: 0; right: auto; width: 240px; max-width: 240px;
  border-top: 0; border-right: 1px solid var(--line); gap: 4px;
  padding: 70px 12px 12px;
}
body.desktop:not(.signed-out) .bottom-nav::before {
  content: "SalesPal"; position: absolute; top: 20px; left: 20px;
  font-size: 20px; font-weight: 800; color: var(--indigo); letter-spacing: -.5px;
}
body.desktop:not(.signed-out) .bottom-nav button {
  flex: 0 0 auto; flex-direction: row; justify-content: flex-start; gap: 12px;
  padding: 12px 16px; border-radius: 10px; font-size: 15px; color: var(--ink);
}
body.desktop:not(.signed-out) .bottom-nav button span { font-size: 20px; }
body.desktop:not(.signed-out) .bottom-nav button.active { background: #eef2ff; color: var(--indigo); }
body.desktop:not(.signed-out) .bottom-nav .fab {
  width: auto; height: auto; border-radius: 10px; margin: 4px 0; box-shadow: none;
  justify-content: flex-start; padding: 12px 16px; flex: 0 0 auto;
}
body.desktop:not(.signed-out) .bottom-nav .fab span { font-size: 20px; }
body.desktop:not(.signed-out) .bottom-nav .fab::after { content: "New sale"; font-weight: 700; }

/* Menu items → bottom of the sidebar */
body.desktop:not(.signed-out) .menu-sheet {
  display: flex; position: fixed; left: 0; top: auto; bottom: 12px;
  width: 240px; max-width: 240px; margin: 0; background: none; border: 0; padding: 0 12px;
}
body.desktop:not(.signed-out) .menu-sheet button {
  border: 0; border-radius: 10px; padding: 11px 16px; font-size: 14px; color: var(--ink);
}

/* Modals → centered dialog instead of bottom sheet */
body.desktop .modal {
  position: absolute; top: 50%; left: 50%; right: auto; bottom: auto;
  transform: translate(-50%, -50%); margin: 0;
  max-width: 560px; width: calc(100vw - 80px); max-height: 86vh;
  border-radius: 16px; animation: none;
}
body.desktop .modal-handle { display: none; }
body.desktop .toast { left: 50%; right: auto; transform: translateX(-50%); }

/* --- signed out (landing/auth): no sidebar, just go wider --- */
body.desktop.signed-out main { margin: 0; padding: 0; }
body.desktop .landing { max-width: 1000px; }
body.desktop .land-hero h1 { font-size: 40px; }
body.desktop .land-sub { font-size: 17px; max-width: 560px; }
body.desktop .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
body.desktop .feat-grid { grid-template-columns: repeat(3, 1fr); }
body.desktop .auth-wrap { min-height: 80vh; }