/* ================= RESET ================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, Arial, sans-serif;
  background: #f3f4f6;
  color: #111827;
}

/* ================= APP LAYOUT ================= */
.app {
  display: flex;
  min-height: 100vh;
}

/* ================= SIDEBAR ================= */
.sidebar {
  width: 260px;
  background: #ffffff;
  padding: 28px 20px;
  border-right: 1px solid #e5e7eb;
}

.user-circle {
  width: 96px;
  height: 96px;
  margin: 0 auto 12px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #6366f1;
}

.user-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar h3 {
  text-align: center;
  margin: 10px 0 30px;
}

.sidebar h4 {
  font-size: 13px;
  text-transform: uppercase;
  color: #6b7280;
  margin-bottom: 10px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar li {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 6px;
  transition: background 0.2s;
}

.sidebar li:hover {
  background: #eef2ff;
  color: #4338ca;
}

/* ================= CONTENT ================= */
.content {
  flex: 1;
  padding: 32px;
}

.content h2 {
  margin-top: 0;
  margin-bottom: 24px;
}

/* ================= CARDS ================= */
.card {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 16px;
}

/* ================= MEMBERS ================= */
.card ul {
  padding-left: 16px;
  margin-bottom: 16px;
}

.card ul li {
  margin-bottom: 6px;
}

/* ================= BALANCES ================= */
.balance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.balance-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.balance-card h4 {
  margin-top: 0;
  margin-bottom: 12px;
}

.balance-card.owe {
  border-left: 6px solid #ef4444;
}

.balance-card.owed {
  border-left: 6px solid #22c55e;
}

/* ================= ADD EXPENSE ================= */
.split-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.split-tabs {
  display: flex;
  gap: 10px;
  margin: 16px 0;
}

.split-tabs button {
  flex: 1;
  background: #eef2ff;
  border: none;
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  color: #4338ca;
}

.split-tabs button:hover {
  background: #e0e7ff;
}

/* ================= MEMBER ROW ================= */
.member-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed #e5e7eb;
}

.member-row:last-child {
  border-bottom: none;
}

.member-row label {
  font-size: 14px;
}

.member-row input {
  width: 100px;
}

/* ================= YOU ROW ================= */
.you-row {
  opacity: 0.6;
  font-style: italic;
}

/* ================= INPUTS & BUTTONS ================= */
input,
select {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  margin-bottom: 14px;
}

input:focus,
select:focus {
  outline: none;
  border-color: #6366f1;
}

button {
  padding: 12px;
  border-radius: 12px;
  border: none;
  background: #6366f1;
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: #4f46e5;
}
/* ================= DASHBOARD ================= */
.dashboard {
  max-width: 880px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ================= GENERIC CARD ================= */
.card {
  background: #ffffff;
  border-radius: 16px;
  padding: 22px 24px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
}

/* ================= MEMBERS (COMPACT) ================= */
.members-card {
  padding-bottom: 18px;
}

.member-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chip {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #334155;
}

.chip.you {
  background: #eef2ff;
  color: #4f46e5;
  font-weight: 600;
}

.chip.add {
  background: transparent;
  border: 1px dashed #c7d2fe;
  color: #4f46e5;
}

/* ================= BALANCES (CALM, SIDE BY SIDE) ================= */
.balance-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.summary-card {
  padding: 20px 22px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
}

.summary-card p {
  margin: 0;
  font-size: 13px;
  color: #6b7280;
}

.summary-card h3 {
  margin-top: 6px;
  font-size: 28px;
  font-weight: 700;
}

.summary-card.owe {
  border-left: 5px solid #ef4444;
}

.summary-card.owed {
  border-left: 5px solid #22c55e;
}

/* ================= EXPENSE (PRIMARY FOCUS) ================= */
.expense-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 12px 32px rgba(79,70,229,0.12);
}

/* HERO AMOUNT INPUT */
.amount-input {
  font-size: 26px;
  font-weight: 600;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid #c7d2fe;
  background: #f8fafc;
}

.amount-input::placeholder {
  color: #94a3b8;
}

/* ================= SPLIT TABS ================= */
.split-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.split-tabs button {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  color: #475569;
  font-weight: 600;
}

.split-tabs button.active {
  background: #4f46e5;
  color: white;
  border-color: #4f46e5;
}

/* ================= SPLIT LIST ================= */
.split-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.split-row {
  display: grid;
  grid-template-columns: 1fr 120px 120px;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
}


.split-row span {
  font-size: 14px;
  color: #334155;
}

.split-row input {
  width: 110px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  background: #f8fafc;
}

.split-row.you {
  opacity: 0.6;
}

/* ================= PRIMARY ACTION ================= */
.primary-btn {
  margin-top: 8px;
  padding: 16px;
  border-radius: 16px;
  background: #4f46e5;
  color: white;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(79,70,229,0.35);
}

.split-row input {
  background: #ffffff;
  border: 2px solid #c7d2fe;
}

.paid-by-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.paid-by-row label {
  font-size: 13px;
  color: #555;
}

#paidBy {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ddd;
  font-size: 14px;
}