/* ============================================================
   Recharge Portal — app.css
   Identity: deep navy shell · indigo brand · signal-green money
   ============================================================ */
:root{
  --ink:#0e1726;          /* app bar / darkest */
  --ink-2:#16233b;
  --indigo:#253380;       /* brand */
  --indigo-2:#3550c9;
  --green:#00c48c;        /* money / go / success */
  --green-2:#00a878;
  --coral:#ff6b57;        /* due / warning */
  --bg:#eef1f7;           /* app background */
  --card:#ffffff;
  --line:#e4e8f1;
  --muted:#6b7a99;
  --text:#12203a;
  --radius:18px;
  --shadow:0 6px 24px rgba(20,35,70,.08);
  --shadow-soft:0 2px 10px rgba(20,35,70,.06);
  --tabbar-h:64px;
  --appbar-h:56px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  overscroll-behavior-y:none;
}
h1,h2,h3,h4,.num,.display-num{font-family:'Space Grotesk','Inter',sans-serif}
.num,.amount,.balance-pill span,.mono{font-variant-numeric:tabular-nums;letter-spacing:-.01em}
a{text-decoration:none}

/* ---- phone-shaped shell, centered on desktop ---- */
.app-shell{
  max-width:460px;
  margin:0 auto;
  min-height:100vh;
  min-height:100dvh;
  background:var(--bg);
  position:relative;
  box-shadow:0 0 60px rgba(20,35,70,.10);
}
.app-main{
  padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);
}
.container-app{padding-left:16px;padding-right:16px}
.app-main .container-app,.app-main > .container-app{padding-top:16px}

/* ---- top app bar ---- */
.app-bar{
  position:sticky;top:0;z-index:30;
  height:calc(var(--appbar-h) + env(safe-area-inset-top));
  padding-top:env(safe-area-inset-top);
  display:flex;align-items:center;gap:10px;
  padding-left:14px;padding-right:14px;
  background:var(--ink);
  color:#fff;
}
.app-bar-title{
  font-size:1.05rem;font-weight:600;margin:0;
  flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.app-bar-brand{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--indigo-2),var(--indigo));
  color:var(--green);font-size:1rem;
}
.app-bar-back{
  width:34px;height:34px;border-radius:10px;color:#fff;
  display:grid;place-items:center;background:rgba(255,255,255,.10);
}
.app-bar-back:active{background:rgba(255,255,255,.2)}
.app-bar-spacer{width:34px}
.balance-pill{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(0,196,140,.16);
  color:#8ff5d5;border:1px solid rgba(0,196,140,.35);
  padding:6px 12px;border-radius:999px;font-weight:600;font-size:.9rem;
}
.balance-pill i{font-size:.8rem}

/* ---- bottom tab bar ---- */
.tab-bar{
  position:fixed;left:50%;transform:translateX(-50%);
  bottom:0;width:100%;max-width:460px;z-index:40;
  height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  display:flex;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -4px 20px rgba(20,35,70,.06);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;color:var(--muted);font-size:.68rem;font-weight:500;
  padding-top:8px;transition:color .15s;
}
.tab-item i{font-size:1.15rem}
.tab-item.is-active{color:var(--indigo-2)}
.tab-item.is-active i{transform:translateY(-1px)}
.tab-item:active{color:var(--indigo)}

/* ---- wallet card (signature) ---- */
.wallet-card{
  margin:16px;border-radius:22px;color:#fff;overflow:hidden;position:relative;
  background:radial-gradient(120% 120% at 100% 0%,var(--indigo-2) 0%,var(--indigo) 45%,var(--ink) 100%);
  box-shadow:0 12px 30px rgba(37,51,128,.35);
  padding:20px 20px 18px;
}
.wallet-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;
  background:radial-gradient(circle,rgba(0,196,140,.35),transparent 70%);
}
.wallet-card .wc-label{font-size:.78rem;opacity:.8;letter-spacing:.02em;margin-bottom:2px}
.wallet-card .wc-balance{font-size:2.3rem;font-weight:700;line-height:1.05}
.wallet-card .wc-row{display:flex;gap:10px;margin-top:16px;position:relative;z-index:1}
.wc-chip{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:8px 12px;flex:1;
}
.wc-chip .k{font-size:.68rem;opacity:.75}
.wc-chip .v{font-size:1rem;font-weight:600}
.wc-chip.due .v{color:#ffd0c7}

/* ---- generic cards ---- */
.card-soft{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
}
.shadow-soft{box-shadow:var(--shadow-soft)}
.section-title{
  font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);margin:22px 16px 10px;
}

/* quick action grid */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:0 16px}
.quick{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:14px 6px;text-align:center;color:var(--text);box-shadow:var(--shadow-soft);
}
.quick i{
  display:block;font-size:1.25rem;margin-bottom:6px;color:var(--indigo-2);
}
.quick span{font-size:.7rem;font-weight:500;color:var(--muted)}
.quick:active{transform:scale(.97)}

/* transaction list rows */
.tx-list{margin:0 16px;display:flex;flex-direction:column;gap:8px}
.tx-row{
  display:flex;align-items:center;gap:12px;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow-soft);
}
.tx-ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:#eef1fb;color:var(--indigo-2);flex:none;font-size:1rem}
.tx-main{flex:1;min-width:0}
.tx-main .t{font-weight:600;font-size:.95rem}
.tx-main .s{font-size:.76rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx-amt{text-align:right;font-weight:700}
.tx-amt .badge-status{display:block;margin-top:3px;font-weight:600}

.badge-status{font-size:.66rem;padding:.3em .55em;border-radius:6px}

/* forms */
.form-card{margin:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-soft);padding:18px 16px}
.form-label{font-weight:600;font-size:.82rem;color:var(--text)}
.form-control,.form-select{
  border-radius:12px;padding:.7rem .85rem;border-color:var(--line);font-size:.95rem;
}
.form-control:focus,.form-select:focus{
  border-color:var(--indigo-2);box-shadow:0 0 0 .2rem rgba(53,80,201,.15);
}
.input-amount{font-family:'Space Grotesk';font-size:1.4rem;font-weight:600;text-align:center}

/* amount chips */
.amt-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.amt-chip{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:6px 14px;font-weight:600;font-size:.9rem;color:var(--indigo);cursor:pointer;
}
.amt-chip.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}

/* buttons */
.btn-brand{
  background:linear-gradient(135deg,var(--green),var(--green-2));border:none;color:#04231a;
  font-weight:700;border-radius:14px;padding:.85rem;width:100%;font-size:1rem;
  box-shadow:0 8px 20px rgba(0,196,140,.30);
}
.btn-brand:active{transform:translateY(1px)}
.btn-ink{background:var(--ink);color:#fff;border-radius:14px;font-weight:600}
.btn-outline-ink{border:1px solid var(--line);border-radius:12px;color:var(--text);background:#fff}

/* auth screens */
.auth-wrap{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;
  padding:24px 22px calc(24px + env(safe-area-inset-bottom));background:var(--bg)}
.auth-logo{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--indigo-2),var(--indigo));color:var(--green);font-size:1.6rem;
  box-shadow:0 10px 24px rgba(37,51,128,.35)}
.auth-title{text-align:center;font-weight:700;font-size:1.4rem;margin-bottom:2px}
.auth-sub{text-align:center;color:var(--muted);margin-bottom:22px;font-size:.9rem}

/* stat tiles (admin) */
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0 16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow-soft)}
.stat .k{font-size:.72rem;color:var(--muted);font-weight:500;display:flex;align-items:center;gap:6px}
.stat .v{font-size:1.5rem;font-weight:700;margin-top:4px;font-family:'Space Grotesk'}
.stat i{color:var(--indigo-2)}

/* empty state */
.empty{text-align:center;color:var(--muted);padding:48px 24px}
.empty i{font-size:2.2rem;color:#c3ccdd;margin-bottom:10px}

/* helpers */
.text-green{color:var(--green-2)!important}
.text-coral{color:var(--coral)!important}
.text-muted-2{color:var(--muted)!important}
.divider{height:1px;background:var(--line);margin:14px 0}
.pull-refresh-hint{text-align:center;font-size:.72rem;color:var(--muted);padding:6px}

/* offline banner */
.offline-banner{display:none;background:var(--coral);color:#fff;text-align:center;
  font-size:.8rem;padding:6px;position:sticky;top:var(--appbar-h);z-index:20}
body.is-offline .offline-banner{display:block}