/* Import fonts */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap");

/* ----- Day Theme Variables ----- */
:root {
    --bg-color: #f2f2f2;
    --card-bg: #ffffff;
    --text-color: #333333;
    --primary: #3a6ea5;
    /* Blue accent */
    --accent: #2d3e50;
    /* Dark blue-gray */
    --income-color: #2ecc71;
    /* Bright green */
    --expense-color: #e74c3c;
    /* Bright red */
    --shadow: rgba(0, 0, 0, 0.1);
    --filter-bg: #f7f7f7;
    --list-bg: #ffffff;
    --list-border: #dddddd;
}

/* ----- Night Theme Variables ----- */
body.night-theme {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --primary: #4d90fe;
    /* Bright blue */
    --accent: #6f42c1;
    /* Purple */
    --income-color: #4caf50;
    --expense-color: #f44336;
    --shadow: rgba(0, 0, 0, 0.7);
    --filter-bg: #2e2e2e;
    --list-bg: #1e1e1e;
    --list-border: #444444;
}

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

body {
    font-family: "Poppins", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 1.6rem;
    line-height: 1.5;
}

/* Top header with theme toggle */
#topHeader {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

#topHeader h1 {
    font-size: 1.80rem;
}

#themeToggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* Main container styling */
main {
    max-width: 480px;
    margin: auto;
    background-color: var(--card-bg);
    padding: 2rem 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 8px 16px var(--shadow);
}

/* Balance section styling */
#balanceSection {
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    flex-wrap: wrap;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px var(--shadow);
}

#balanceSection div {
    flex: 1 1 33%;
    text-align: center;
    margin-bottom: 0.5rem;
}

#balanceSection h5 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

/* Filter Section Styling */
#filterSection {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    background: var(--filter-bg);
    padding: 0.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

#filterSection h3 {
    flex: 1;
    font-size: 1rem;
}

#filterSection select,
#filterSection button {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--list-border);
    border-radius: 0.5rem;
    font-size: 1rem;
    background-color: var(--card-bg);
    cursor: pointer;
    color: var(--text-color);
}

/* Transactions & Monthly Summary Sections */
section h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    color: var(--primary);
}

ul {
    list-style-type: none;
}

ul li {
    background-color: var(--list-bg);
    border: 1px solid var(--list-border);
    margin-bottom: 0.5rem;
    padding: 0.8rem;
    border-radius: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    transition: background 0.3s;
}

ul li:hover {
    background: var(--filter-bg);
}

.name h4 {
    font-size: 1rem;
    font-weight: 600;
    text-transform: capitalize;
}

.name p {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-top: 0.25rem;
}

.amount {
    font-weight: 600;
}

.amount.income {
    color: var(--income-color);
}

.amount.expense {
    color: var(--expense-color);
}

/* Action buttons styling */
.action {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 50px;
    display: grid;
    place-items: center;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease-in-out;
}

ul li:hover .action {
    transform: scaleX(1);
}

.action svg {
    width: 30px;
    height: 30px;
    cursor: pointer;
}

/* Toggle for Expense/Income in form */
.toggle-container {
    position: relative;
    margin-bottom: 1rem;
}

.toggle-container input#type {
    appearance: none;
    position: absolute;
    width: 100%;
    height: 100%;
    cursor: pointer;
    opacity: 0;
    z-index: 3;
}

.option {
    background: var(--primary);
    border-radius: 5px;
    display: flex;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow);
    position: relative;
}

.option span {
    flex: 1;
    text-align: center;
    color: #000000;
    padding: 0.5rem 0;
    z-index: 2;
    cursor: pointer;
}

.option::before {
    content: "";
    position: absolute;
    top: 0.25rem;
    left: 0.25rem;
    height: calc(100% - 0.5rem);
    width: calc(50% - 0.5rem);
    background-color: #ffffff;
    border-radius: 5px;
    transition: left 0.5s;
    z-index: 1;
}

input#type:checked+.option::before {
    left: calc(50% + 0.25rem);
}

/* Form styling */
#formSection form {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

#formSection form>div {
    flex: 1 1 100%;
}

#formSection form input:not(#type),
#formSection form button {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--list-border);
    border-radius: 0.5rem;
    font-size: 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
}

#formSection form button {
    background-color: var(--accent);
    color: #ffffff;
    text-transform: uppercase;
    font-weight: 600;
    transition: background-color 0.4s ease-in-out, transform 0.2s;
    cursor: pointer;
}

#formSection form button:hover {
    background-color: var(--primary);
    transform: scale(1.02);
}

#formSection label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

/* Notification styling */
#notification {
    position: fixed;
    top: 10%;
    right: 10%;
    background-color: var(--primary);
    color: #ffffff;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 8px var(--shadow);
    opacity: 0;
    transition: opacity 0.5s;
    z-index: 10;
}

#notification.show {
    opacity: 1;
}

.credit {
    font-size: 0.75rem;
    opacity: 0.6;
    text-align: center;
    margin-top: 2rem;
    padding: 10px;
    color: var(--text-color);
    word-wrap: break-word;
  }
  
  .credit a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.7rem;
  }
  
  .credit a:hover {
    text-decoration: underline;
  }
  
  @media (max-width: 600px) {
    .credit {
      font-size: 0.65rem;
      padding: 8px;
    }
  
    .credit a {
      font-size: 0.65rem;
    }
  }
  
  

/* Responsive adjustments */
@media (max-width: 500px) {
    #filterSection {
        flex-direction: column;
        align-items: stretch;
    }

    #filterSection select,
    #filterSection button {
        width: 100%;
    }

    #balanceSection div {
        flex: 1 1 100%;
        text-align: center;
    }
}