/* PERA — envelope budgeting. Mobile-first, banknote-inspired, light. */

:root {
  --paper: #F6F7F4;
  --ink: #1C2321;
  --green: #1F6E52;
  --red: #C4442E;
  --kraft: #EAE4D6;
  --line: #D8DAD3;
  --muted: #6C7470;
  --font-ui: "Schibsted Grotesk", system-ui, sans-serif;
  --font-num: "Fragment Mono", ui-monospace, monospace;
  --radius: 10px;
}

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

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

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 500;
  line-height: 1.45;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.num,
.tx-date, .tx-amt, .summary-num, .month-label, .env-amounts, .env-left, .env-over {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}

button { font: inherit; color: inherit; cursor: pointer; }
input, select { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */

.app-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.wordmark {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  line-height: 1.1;
}

.peso-glyph { color: var(--green); }

.tagline {
  color: var(--muted);
  font-size: 0.8rem;
}

.month-nav {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 0.25rem;
}

.month-label {
  font-size: 0.95rem;
  font-weight: 400;
  text-align: center;
}

.month-btn {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
}

.month-btn:hover { background: var(--kraft); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--green);
  color: #fff;
}
.btn-primary:hover { background: #185C44; }

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
  font-weight: 500;
}
.btn-ghost:hover { background: #fff; }

.btn-danger {
  background: transparent;
  border-color: var(--red);
  color: var(--red);
}
.btn-danger:hover,
.btn-danger.armed { background: var(--red); color: #fff; }

.btn-block { width: 100%; }

.icon-btn {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
}
.icon-btn:hover { background: var(--kraft); }

/* ---------- Main layout ---------- */

.app-main {
  flex: 1;
  width: 100%;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.section-head h2 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ---------- Summary strip ---------- */

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.7rem 0.75rem;
  min-width: 0;
}

.summary-item + .summary-item { border-left: 1px solid var(--line); }

.summary-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.summary-num {
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.summary-num.positive { color: var(--green); }
.summary-num.negative { color: var(--red); }

/* ---------- Envelope cards ---------- */

.env-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.env-card {
  --env: var(--muted);
  position: relative;
  background: var(--kraft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.1rem 0.9rem 0.9rem;
  overflow: hidden;
}

/* the envelope flap */
.env-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1.6rem;
  background: var(--env);
  opacity: 0.28;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  pointer-events: none;
}
.env-card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--env);
  pointer-events: none;
}

.env-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.env-head h3 {
  font-size: 0.95rem;
  font-weight: 700;
  min-width: 0;
  overflow-wrap: anywhere;
}

.env-edit {
  flex: none;
  display: grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
}
.env-edit:hover { background: rgba(28, 35, 33, 0.08); color: var(--ink); }

.env-amounts {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.55rem;
}
.env-amounts .env-spent { color: var(--ink); }

.env-bar {
  height: 0.6rem;
  border-radius: 999px;
  background: rgba(28, 35, 33, 0.1);
  overflow: hidden;
}

.env-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--env);
  transition: width 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.env-card.over .env-fill { background: var(--red); }

.env-left {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--green);
}

.env-over {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--red);
}

.env-card.pulse { animation: env-pulse 0.6s ease-out; }

@keyframes env-pulse {
  0% { box-shadow: 0 0 0 0 rgba(31, 110, 82, 0.45); }
  100% { box-shadow: 0 0 0 12px rgba(31, 110, 82, 0); }
}

/* empty / rollover states */

.empty-state,
.rollover-offer {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 1.25rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.empty-state p,
.rollover-offer p { color: var(--muted); font-size: 0.9rem; }

.rollover-offer { margin-bottom: 0.75rem; }

/* ---------- Transactions ---------- */

.tx-count { color: var(--muted); font-size: 0.8rem; }

.tx-list {
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.tx {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.2rem 0.75rem;
  padding: 0.65rem 0.75rem;
}

.tx + .tx { border-top: 1px solid var(--line); }

.tx-main {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-width: 0;
}

.tx-note {
  font-size: 0.88rem;
  overflow-wrap: anywhere;
}

.tx-chip {
  --env: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.1rem 0.5rem 0.1rem 0.35rem;
  white-space: nowrap;
}

.tx-chip::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--env);
}

.tx-side {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tx-date { font-size: 0.72rem; color: var(--muted); }

.tx-amt { font-size: 0.85rem; }

.tx-del {
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 0.7rem;
}
.tx-del:hover { background: rgba(196, 68, 46, 0.1); color: var(--red); }
.tx-del.armed {
  width: auto;
  padding: 0 0.5rem;
  background: var(--red);
  color: #fff;
  font-weight: 700;
}

.tx-empty {
  padding: 1.25rem 0.75rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---------- Data row / footer ---------- */

.data-row {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  padding-top: 0.25rem;
}

.app-footer {
  border-top: 1px solid var(--line);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.app-footer a { color: var(--green); }

/* ---------- Modals ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: var(--paper);
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.modal-backdrop[hidden] { display: none; }

.modal {
  width: 100%;
  background: var(--paper);
  padding: 1.25rem 1rem 2rem;
  overflow-y: auto;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.modal-head h2 { font-size: 1.15rem; font-weight: 700; }

.field { margin-bottom: 0.9rem; }

.field label,
.field legend {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.optional { color: var(--muted); font-weight: 500; }

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.55rem 0.65rem;
  font-size: 1rem;
}

#exp-amount, #env-budget, #exp-date { font-family: var(--font-num); }

.swatch-field { border: 0; }

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.swatch input {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.swatch span {
  display: block;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
}

.swatch input:checked + span {
  border-color: var(--ink);
  box-shadow: inset 0 0 0 2px var(--paper);
}

.swatch input:focus-visible + span {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.form-error {
  color: var(--red);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

#env-delete { margin-top: 0.6rem; }

/* ---------- Toasts ---------- */

.toasts {
  position: fixed;
  inset: auto 0 1rem 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
  padding: 0 1rem;
}

.toast {
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  animation: toast-in 0.25s ease-out;
  max-width: 100%;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Responsive (min-width only) ---------- */

@media (min-width: 560px) {
  .env-grid { grid-template-columns: repeat(2, 1fr); }

  .summary-num { font-size: 1.15rem; }

  .modal-backdrop {
    align-items: center;
    background: rgba(28, 35, 33, 0.4);
    padding: 1.5rem;
  }

  .modal {
    max-width: 26rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.25rem 1.25rem 1.5rem;
    max-height: calc(100vh - 3rem);
    box-shadow: 0 16px 40px rgba(28, 35, 33, 0.18);
  }
}

@media (min-width: 760px) {
  .app-header {
    grid-template-columns: 1fr auto auto;
    padding: 1rem 1.5rem;
  }
  .month-nav {
    grid-column: auto;
    min-width: 16rem;
  }
  .app-main { padding: 1.5rem; }
}

@media (min-width: 960px) {
  .env-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1100px) {
  .app-main {
    max-width: 72rem;
    margin: 0 auto;
  }
  .panes {
    display: grid;
    grid-template-columns: 1fr 22rem;
    gap: 1.5rem;
    align-items: start;
  }
  .env-grid { grid-template-columns: repeat(2, 1fr); }
  .app-footer {
    flex-direction: row;
    justify-content: space-between;
    padding: 1rem 1.5rem;
  }
}

@media (min-width: 1320px) {
  .env-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}