:root {
  --bg-image: url("./assets/bg.png");
  --glass-bg: rgba(20, 20, 20, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --primary-gradient: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
  --primary-color: #d19bf3;
  --accent-color: #00fff0;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --success-color: #2ecc71;
  --expense-color: #ff6b6b;
  --card-radius: 24px;
  --font-main: "Outfit", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  -webkit-tap-highlight-color: transparent;
}

body {
  background: #0f0c29; /* Fallback */
  background-image: var(--bg-image);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  padding-bottom: 80px; /* Space for bottom nav or scrolling */
}

/* Glass Utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.hidden {
  display: none !important;
}

/* AUTH VIEW */
.auth-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  padding: 30px;
  text-align: center;
  background: rgba(0, 0, 0, 0.4); /* Dim overlay */
}

.auth-container h1 {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}

.auth-container p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* Modern Inputs */
input,
select,
button {
  width: 100%;
  padding: 16px;
  margin-bottom: 15px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: white;
  font-size: 1rem;
  transition: all 0.3s ease;
  outline: none;
}

input:focus,
select:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary-color);
  box-shadow: 0 0 15px rgba(209, 155, 243, 0.2);
}

/* Buttons */
button {
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.5px;
  border: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #1a1a1a;
  box-shadow: 0 4px 15px rgba(251, 194, 235, 0.3);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-secondary);
}

.auth-switch a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

/* DASHBOARD HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  font-size: 0.6rem;
  padding: 4px 8px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge.online {
  background: var(--success-color);
  color: black;
  box-shadow: 0 0 10px rgba(46, 204, 113, 0.4);
}

.icon-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  backdrop-filter: blur(5px);
}

/* SUMMARY CARD (Glass) */
.summary-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--card-radius);
  margin: 10px 20px 30px;
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

/* Glow effect behind card */
.summary-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(161, 140, 209, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.total-balance .label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-secondary);
}

.total-balance .amount {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  margin: 10px 0;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.stats-row {
  display: flex;
  justify-content: space-around;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat .val {
  display: block;
  font-weight: 700;
  font-size: 1.2rem;
  margin-top: 5px;
}

.stat.income .val {
  color: var(--success-color);
}
.stat.expense .val {
  color: var(--expense-color);
}

/* ADD FORM (Glass) */
.add-form-container {
  background: rgba(30, 30, 30, 0.6);
  backdrop-filter: blur(12px);
  margin: 0 20px 20px;
  padding: 20px;
  border-radius: var(--card-radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.toggle-group {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  padding: 4px;
  width: fit-content;
}

.toggle-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

input:checked + .toggle-btn.expense {
  background: var(--expense-color);
  color: white;
  box-shadow: 0 2px 10px rgba(255, 107, 107, 0.3);
}

input:checked + .toggle-btn.income {
  background: var(--success-color);
  color: white;
  box-shadow: 0 2px 10px rgba(46, 204, 113, 0.3);
}

#amount-input {
  background: transparent;
  border: none;
  font-size: 2rem;
  padding: 0;
  margin: 0;
  text-align: right;
  color: white;
}

#amount-input:focus {
  box-shadow: none;
}

.details-row {
  display: grid;
  grid-template-columns: 2fr 3fr 1fr;
  gap: 10px;
  margin-top: 15px;
}

.details-row > * {
  margin: 0;
}

.btn-submit {
  background: white;
  color: black;
  border-radius: 12px;
  font-size: 1.2rem;
}

/* FILTERS */
.filters {
  padding: 0 20px 10px;
  gap: 12px;
}

.filter-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
}

.filter-chip.active {
  background: white;
  color: black;
  border: none;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

/* LIST */
.date-header {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 20px 20px 10px;
}

.txn-item {
  background: rgba(255, 255, 255, 0.03);
  padding: 15px;
  border-radius: 16px;
  margin: 0 20px 10px;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.txn-item:active {
  transform: scale(0.98);
  background: rgba(255, 255, 255, 0.05);
}

.txn-cat-emoji {
  background: rgba(255, 255, 255, 0.05);
  width: 45px;
  height: 45px;
  font-size: 1.4rem;
  border-radius: 12px;
}

.txn-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.txn-amount {
  font-size: 1.1rem;
}
.txn-amount.income {
  color: var(--success-color);
}
.txn-amount.expense {
  color: var(--text-primary);
} /* White for expense looks cleaner on dark */

.empty-state {
  color: var(--text-secondary);
  padding: 40px;
  font-style: italic;
}