:root {
  --bg: #f5f6f4;
  --surface: #ffffff;
  --text: #232624;
  --muted: #727874;
  --line: #e1e4e1;

  --strong: #233e32;
  --strong-hover: #192f26;

  --danger: #a63a3a;

  --overdue-bg: #fff4f3;
  --overdue-text: #9b3636;

  --general-soft: #f0f1f0;
  --general-edge: #8a918d;

  --customer-soft: #eef5fa;
  --customer-edge: #6e97b2;

  --flow-soft: #eef6f0;
  --flow-edge: #6e9a79;

  --followup-soft: #fbf5e9;
  --followup-edge: #b58d4f;

  --note-soft: #f4eff8;
  --note-edge: #9277a8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 42px;
}

.brand {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
}

.strapline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.primary-btn,
.secondary-btn {
  border-radius: 9px;
  padding: 12px 18px;
  border: 1px solid transparent;
  font-weight: 600;
}

.primary-btn {
  background: var(--strong);
  color: white;
}

.primary-btn:hover {
  background: var(--strong-hover);
}

.secondary-btn {
  background: white;
  color: var(--text);
  border-color: var(--line);
}

.reminder-section {
  margin-bottom: 38px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 13px;
}

.section-heading h2 {
  margin: 0;
  font-size: 20px;
}

.count {
  color: var(--muted);
  font-size: 14px;
}

.reminder-list {
  display: grid;
  gap: 10px;
}

.reminder-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;

  display: grid;
  grid-template-columns: 1fr auto;

  gap: 20px;
  align-items: center;
}

.reminder-main {
  min-width: 0;
}

.reminder-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 7px;
}

.reminder-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 15px;

  color: var(--muted);
  font-size: 14px;
}

.overdue {
  color: var(--overdue-text);
  font-weight: 600;
}

.reminder-actions {
  display: flex;
  gap: 7px;
  align-items: center;
}

.action-btn {
  border: 1px solid var(--line);
  background: white;
  color: var(--text);

  padding: 8px 11px;
  border-radius: 8px;
}

.action-btn:hover {
  background: #f2f3f1;
}

.done-btn {
  background: var(--strong);
  color: white;
  border-color: var(--strong);
}

.delete-btn {
  color: var(--danger);
}

.empty-state {
  border: 1px dashed #cfd4d0;
  border-radius: 12px;

  padding: 22px;

  color: var(--muted);
  background: rgba(255,255,255,.45);
}

.hidden {
  display: none !important;
}

.done-toggle {
  width: 100%;

  display: flex;
  align-items: center;
  gap: 10px;

  border: none;

  padding: 0 0 13px;

  background: transparent;
  color: var(--text);

  font-size: 20px;
  font-weight: 700;

  text-align: left;
}

.done-toggle #doneArrow {
  margin-left: auto;

  font-size: 22px;
  font-weight: normal;
}

.done-area {
  margin-top: 2px;
}

.completed .reminder-title {
  text-decoration: line-through;
  color: var(--muted);
}


/* -----------------------------
   BUCKETS
----------------------------- */

#bucketArea > .reminder-section {
  border-left: 5px solid var(--general-edge);
  border-radius: 12px;

  padding: 16px;

  background: var(--general-soft);
}

#bucketArea > .reminder-section:nth-child(1) {
  border-left-color: var(--general-edge);
  background: var(--general-soft);
}

#bucketArea > .reminder-section:nth-child(2) {
  border-left-color: var(--customer-edge);
  background: var(--customer-soft);
}

#bucketArea > .reminder-section:nth-child(3) {
  border-left-color: var(--flow-edge);
  background: var(--flow-soft);
}

#bucketArea > .reminder-section:nth-child(4) {
  border-left-color: var(--followup-edge);
  background: var(--followup-soft);
}

#bucketArea > .reminder-section:nth-child(5) {
  border-left-color: var(--note-edge);
  background: var(--note-soft);
}

#bucketArea .section-heading {
  margin-bottom: 14px;
}

#bucketArea .section-heading h2 {
  letter-spacing: .1px;
}

#bucketArea .empty-state {
  background: rgba(255,255,255,.6);
}

#bucketArea .reminder-card {
  background: white;
}


/* -----------------------------
   MODAL
----------------------------- */

.modal-backdrop {
  position: fixed;
  inset: 0;

  background: rgba(20, 25, 22, .38);

  display: grid;
  place-items: center;

  padding: 24px;

  z-index: 100;
}

.modal {
  width: min(520px, 100%);

  background: white;

  border-radius: 16px;
  padding: 25px;

  box-shadow:
    0 20px 70px rgba(0,0,0,.18);
}

.modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;

  margin-bottom: 22px;
}

.modal-heading h2 {
  margin: 0;
  font-size: 23px;
}

.close-btn {
  border: none;
  background: transparent;

  font-size: 28px;
  line-height: 1;

  color: var(--muted);
}

form {
  display: grid;
  gap: 10px;
}

label {
  margin-top: 6px;

  font-size: 14px;
  font-weight: 600;
}

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

  margin-left: 5px;
}

input,
select {
  width: 100%;

  border: 1px solid #ccd1cd;
  border-radius: 9px;

  padding: 12px 13px;

  background: white;
  color: var(--text);
}

input:focus,
select:focus {
  outline: 2px solid rgba(35, 62, 50, .16);
  border-color: var(--strong);
}

.date-entry-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;

  gap: 10px;
  align-items: stretch;
}

.date-entry-row .secondary-btn {
  white-space: nowrap;
}

.form-actions {
  display: flex;
  justify-content: flex-end;

  gap: 10px;

  margin-top: 16px;
}


/* -----------------------------
   MOBILE
----------------------------- */

@media (max-width: 700px) {

  .app-shell {
    width: min(100% - 24px, 900px);
    padding-top: 25px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;

    margin-bottom: 32px;
  }

  .topbar .primary-btn {
    width: 100%;
  }

  .reminder-card {
    grid-template-columns: 1fr;
  }

  .reminder-actions {
    flex-wrap: wrap;
  }

  .date-entry-row {
    grid-template-columns: 1fr;
  }

  .date-entry-row .secondary-btn {
    width: 100%;
  }

  #bucketArea > .reminder-section {
    padding: 14px;
    margin-bottom: 24px;
  }

}