/* Reset and base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color, #f9f9f9);
  color: var(--text-color, #222);
  min-height: 100vh;
  padding: 20px;
  transition: background-color 0.3s, color 0.3s;
}
.card {
  max-width: 900px;
  margin: 0 auto 30px;
  padding: 20px 30px;
  border-radius: 12px;
  background-color: var(--card-bg, #fff);
  box-shadow:
    0 6px 15px rgb(0 0 0 / 0.1),               /* subtle black shadow */
    0 0 15px 6px var(--accent-color-light);    /* softer theme-based glow */
  transition: background-color 0.3s, box-shadow 0.3s;
}



h1 {
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
  font-size: 2.5rem;
  user-select: none;
}

/* Form and controls */

form#todo-form {
  display: grid;
  grid-template-columns: 1fr 1fr 150px 150px auto;
  gap: 10px;
  margin-bottom: 20px;
  align-items: center;
}

form#todo-form input[type="text"],
form#todo-form textarea,
form#todo-form input[type="date"],
form#todo-form select {
  padding: 10px;
  font-size: 1rem;
  border: 2px solid var(--input-border);
  border-radius: 6px;
  transition: border-color 0.3s;
  background-color: var(--input-focus-bg); /* Add this line */
}

form#todo-form input[type="text"]:focus,
form#todo-form textarea:focus,
form#todo-form input[type="date"]:focus,
form#todo-form select:focus {
  outline: none;
  border-color: var(--accent-color, #007bff);
  background-color: var(--input-focus-bg, #fff);
}

form#todo-form textarea {
  resize: vertical;
  min-height: 40px;
  max-height: 80px;
}

form#todo-form button[type="submit"] {
  background-color: var(--accent-color, #007bff);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.3s;
}

form#todo-form button[type="submit"]:hover {
  background-color: var(--accent-hover, #0056b3);
}

#custom-category {
  display: none;
}

/* Theme selector */

#theme-select {
  margin-left: 10px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 2px solid var(--input-border);
  font-size: 1rem;
  cursor: pointer;
  background-color: var(--input-focus-bg); /* Add this line */
}

/* Control card & filter */

.control-card {
  max-width: 900px;
  margin: 0 auto;
  border-radius: 10px;
  padding: 15px;
  background-color: var(--card-bg, #fff);
  box-shadow: 0 4px 10px rgb(0 0 0 / 0.1);
}

.control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.filter-wrapper {
  position: relative;
}

#filterToggle {
  background-color: var(--accent-color, #007bff);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  transition: background-color 0.3s;
}

#filterToggle:hover {
  background-color: var(--accent-hover, #0056b3);
}

.filter-options {
  position: absolute;
  top: 40px;
  left: 0;
  background: var(--card-bg, #fff);
  border: 1px solid var(--input-border, #ccc);
  border-radius: 6px;
  box-shadow: 0 4px 8px rgb(0 0 0 / 0.15);
  display: flex;
  flex-direction: row;  /* horizontal layout */
  gap: 8px;             /* space between buttons */
  padding: 8px;         /* optional, for some breathing room */
  z-index: 100;
}

.filter-options.hidden {
  display: none;
}

.filter-options button {
  background: none;
  border: none;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-color, #222);
  text-align: left;
  transition: background-color 0.2s;
  user-select: none;
}

.filter-options button:hover {
  background-color: var(--accent-color-light, #e0e7ff);
}

/* Delete all button */

.delete-btn {
  background-color: #dc3545;
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
  transition: background-color 0.3s;
}

.delete-btn:hover {
  background-color: #a71d2a;
}

/* Todo Grid & Cards */

.todo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 40px; /* increased gap for more space between cards */
  max-width: 900px;
  margin: 0 auto;
  justify-content: center;
}


.todo-card {
  background-color: var(--card-bg, #fff);
  border-radius: 10px;
  padding: 15px 20px;
  margin: 5px;
  box-shadow: 0 3px 8px rgb(0 0 0 / 0.12);
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  transition: box-shadow 0.3s, background-color 0.3s;
  cursor: default;
  user-select: none;
  border: 2px solid var(--input-border, #ccc);
  
}

.todo-card.done {
  opacity: 0.6;
  text-decoration: line-through;
}

.todo-left {
  margin-bottom: 12px;
}

.todo-header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.todo-text {
  flex-grow: 1;
}

.separator {
  color: var(--accent-color, #007bff);
  user-select: none;
}

.todo-category {
  font-style: italic;
  color: var(--accent-color-dark, #004085);
}

.todo-desc {
  font-size: 0.9rem;
  color: var(--text-secondary, #555);
  white-space: pre-line;
}

.todo-right {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}

.todo-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--date-color, #888);
}

.todo-actions button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent-color, #007bff);
  font-size: 1.2rem;
  margin-left: 10px;
  transition: color 0.2s;
}

.todo-actions button:hover {
  color: var(--accent-hover, #0056b3);
}

/* Show/hide custom category input */
#custom-category {
  transition: all 0.3s ease;
}


/* Responsive */

@media (max-width: 800px) {
  form#todo-form {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  #theme-select {
    margin-left: 0;
    width: 100%;
    margin-bottom: 15px;
  }

  .control-header {
    flex-direction: column;
    gap: 10px;
  }

  .todo-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

/* THEMES */

/* Light theme (default) - Darkened background, brighter text */
body.theme-light {
  --bg-color: #e0e0e0;           /* darker gray */
  --text-color: #111;            /* darker but very bright text */
  --input-border: #999;
  --accent-color: #3399ff;
  --accent-hover: #004c99;
  --accent-color-light: #c6d9ff;
  --accent-color-dark: #003366;
  --input-focus-bg: #d9d9d9;
  --card-bg: #e6e6e6;
  --text-secondary: #333;
  --date-color: #555;
}

/* Dark theme */
body.theme-dark {
  --bg-color: #0d0d0d;          /* darker black */
  --text-color: #f5f5f5;        /* brighter white */
  --input-border: #666;
  --accent-color: #5aabe8;
  --accent-hover: #3e85c9;
  --accent-color-light: #4479aa;
  --accent-color-dark: #1e3a5a;
  --input-focus-bg: #1a1a1a;
  --card-bg: #151515;
  --text-secondary: #ccc;
  --date-color: #bbb;
}

/* Ocean Blue */
body.theme-ocean-blue {
  --bg-color: #b2d8d8;          /* darker cyan */
  --text-color: #00796b;        /* brighter teal */
  --input-border: #1b7a71;
  --accent-color: #004d40;
  --accent-hover: #00332b;
  --accent-color-light: #80cbc4;
  --accent-color-dark: #00332b;
  --input-focus-bg: #b2d8d8;
  --card-bg: #cdece9;
  --text-secondary: #004d40;
  --date-color: #00332b;
}

/* Sunset Orange */
body.theme-sunset-orange {
  --bg-color: #d9a275;          /* darker orange */
  --text-color: #ff5722;        /* brighter orange */
  --input-border: #e05e24;
  --accent-color: #bf360c;
  --accent-hover: #a02c08;
  --accent-color-light: #f8b188;
  --accent-color-dark: #8c2a07;
  --input-focus-bg: #f7baa1;
  --card-bg: #f5d6bb;
  --text-secondary: #bf360c;
  --date-color: #8c2a07;
}

/* Forest Green */
body.theme-forest-green {
  --bg-color: #a2c79e;          /* darker green */
  --text-color: #2e7d32;        /* brighter green */
  --input-border: #3f7d2e;
  --accent-color: #1b5e20;
  --accent-hover: #145214;
  --accent-color-light: #99c79a;
  --accent-color-dark: #11350e;
  --input-focus-bg: #a2c79e;
  --card-bg: #bde6c1;
  --text-secondary: #1b5e20;
  --date-color: #11350e;
}

/* Lavender Purple */
body.theme-lavender-purple {
  --bg-color: #b799c9;          /* darker purple */
  --text-color: #7b1fa2;        /* brighter purple */
  --input-border: #9a57be;
  --accent-color: #6a1b9a;
  --accent-hover: #4d1370;
  --accent-color-light: #d4bbf0;
  --accent-color-dark: #3d0960;
  --input-focus-bg: #b799c9;
  --card-bg: #d9bee3;
  --text-secondary: #6a1b9a;
  --date-color: #4d1370;
}

/* Classic Red */
body.theme-classic-red {
  --bg-color: #d47373;          /* darker red */
  --text-color: #e53935;        /* brighter red */
  --input-border: #db5050;
  --accent-color: #b71c1c;
  --accent-hover: #8e1414;
  --accent-color-light: #f9a1a1;
  --accent-color-dark: #660e0e;
  --input-focus-bg: #f0baba;
  --card-bg: #f3c4c4;
  --text-secondary: #b71c1c;
  --date-color: #8e1414;
}

/* Mustard Yellow */
body.theme-mustard-yellow {
  --bg-color: #d4ca5a;          /* darker yellow */
  --text-color: #f9a825;        /* brighter yellow */
  --input-border: #e6d42f;
  --accent-color: #fbc02d;
  --accent-hover: #cda800;
  --accent-color-light: #fff6a8;
  --accent-color-dark: #a97c00;
  --input-focus-bg: #f0ea75;
  --card-bg: #f9f5b1;
  --text-secondary: #f57f17;
  --date-color: #a97c00;
}

/* Cool Gray */
body.theme-cool-gray {
  --bg-color: #cfd8dc;          /* darker gray */
  --text-color: #455a64;        /* brighter dark gray */
  --input-border: #7a8b91;
  --accent-color: #546e7a;
  --accent-hover: #37474f;
  --accent-color-light: #d3e0e5;
  --accent-color-dark: #263238;
  --input-focus-bg: #dce6eb;
  --card-bg: #e6eef2;
  --text-secondary: #37474f;
  --date-color: #263238;
}

/* Coral Pink */
body.theme-coral-pink {
  --bg-color: #dba3b6;          /* darker pink */
  --text-color: #ce3175;        /* brighter pink */
  --input-border: #db7991;
  --accent-color: #ad1457;
  --accent-hover: #880e4f;
  --accent-color-light: #f2a4bc;
  --accent-color-dark: #660934;
  --input-focus-bg: #f1a9be;
  --card-bg: #f9c8d6;
  --text-secondary: #ad1457;
  --date-color: #660934;
}

/* Teal */
body.theme-teal {
  --bg-color: #9ac7c5;          /* darker teal */
  --text-color: #00695c;        /* brighter teal */
  --input-border: #1e8e8a;
  --accent-color: #004d40;
  --accent-hover: #00332b;
  --accent-color-light: #7ccccc;
  --accent-color-dark: #00332b;
  --input-focus-bg: #9ac7c5;
  --card-bg: #b8dedc;
  --text-secondary: #00796b;
  --date-color: #00332b;
}

/* Plum */
body.theme-plum {
  --bg-color: #b38fbf;          /* darker plum */
  --text-color: #6a1b9a;        /* brighter plum */
  --input-border: #a17ab7;
  --accent-color: #4a148c;
  --accent-hover: #3a0f6c;
  --accent-color-light: #cdb1dd;
  --accent-color-dark: #2b0a46;
  --input-focus-bg: #b38fbf;
  --card-bg: #d6b9e0;
  --text-secondary: #6a1b9a;
  --date-color: #3a0f6c;
}

/* Slate Blue */
body.theme-slate-blue {
  --bg-color: #b0b8e6;          /* darker slate */
  --text-color: #1a237e;        /* brighter blue */
  --input-border: #6370ca;
  --accent-color: #283593;
  --accent-hover: #1a237e;
  --accent-color-light: #c5cae9;
  --accent-color-dark: #121858;
  --input-focus-bg: #b0b8e6;
  --card-bg: #d4d9f3;
  --text-secondary: #283593;
  --date-color: #121858;
}

/* Olive */
body.theme-olive {
  --bg-color: #d6dd9d;          /* darker olive */
  --text-color: #7a8300;        /* brighter olive */
  --input-border: #c0ca33;
  --accent-color: #827717;
  --accent-hover: #5f6500;
  --accent-color-light: #dceda3;
  --accent-color-dark: #4a4d00;
  --input-focus-bg: #d6dd9d;
  --card-bg: #e4eaa9;
  --text-secondary: #827717;
  --date-color: #4a4d00;
}

/* Midnight Blue */
body.theme-midnight-blue {
  --bg-color: #aecaf9;          /* darker blue */
  --text-color: #0a357d;        /* brighter blue */
  --input-border: #4a8bf9;
  --accent-color: #0d47a1;
  --accent-hover: #08326a;
  --accent-color-light: #bedaff;
  --accent-color-dark: #05234d;
  --input-focus-bg: #aecaf9;
  --card-bg: #cfe2ff;
  --text-secondary: #0d47a1;
  --date-color: #05234d;
}

/* Candy Pink */
body.theme-candy-pink {
  --bg-color: #dba3b6;          /* darker candy pink */
  --text-color: #9c1450;        /* brighter candy */
  --input-border: #db7991;
  --accent-color: #880e4f;
  --accent-hover: #5f0936;
  --accent-color-light: #f2a4bc;
  --accent-color-dark: #4a0628;
  --input-focus-bg: #f1a9be;
  --card-bg: #f9c8d6;
  --text-secondary: #880e4f;
  --date-color: #4a0628;
}