:root {
    --primary: #007bff;
    --secondary: #f8f9fa;
    --text: #333;
    --light-gray: #e9ecef;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background: var(--secondary);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
}

header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    text-decoration: none;
    color: var(--primary);
    font-size: 22px;
}

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

.breadcrumb {
    margin: 15px 0;
    color: #666;
    font-size: 14px;
}

.tool-box {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.tool-icon {
    width: 90px;
    height: 90px;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5em;
    color: var(--primary);
}

.description {
    max-width: 700px;
    margin: 0 auto 30px auto;
    font-size: 1.1em;
    color: #555;
}

/* To-Do App Specific Styles */
.todo-container {
    max-width: 800px;
    margin: 20px auto;
    text-align: left;
}

.input-section {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#taskInput {
    flex-grow: 1;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s;
}

#taskInput:focus {
    border-color: var(--primary);
}

#prioritySelect {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ccc;
    background: #fff;
}

#addTaskBtn {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

#addTaskBtn:hover {
    background-color: #0056b3;
}

.filter-section {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--light-gray);
    padding-bottom: 15px;
}

.filter-btn {
    background: var(--light-gray);
    color: var(--text);
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn.active {
    background: var(--primary);
    color: #fff;
    font-weight: bold;
}

#clearAllBtn {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
}

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

.task-list li {
    display: flex;
    align-items: center;
    padding: 15px;
    background: var(--secondary);
    border-radius: 8px;
    margin-bottom: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.task-list li.completed .task-text {
    text-decoration: line-through;
    color: #888;
}

.task-list li.priority-high { border-left: 5px solid var(--danger); }
.task-list li.priority-medium { border-left: 5px solid var(--warning); }
.task-list li.priority-low { border-left: 5px solid var(--success); }

.task-checkbox {
    margin-right: 15px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.task-text {
    flex-grow: 1;
    cursor: pointer;
}

.task-actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    margin-left: 10px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.task-actions button:hover {
    opacity: 1;
}

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

/* General Sections */
section {
    margin-top: 40px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.card {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.card img {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
}

.card h3 {
    margin-bottom: 10px;
}

.card button {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.faq {
    margin-top: 50px;
}

.faq-item {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

footer {
    text-align: center;
    padding: 25px;
    background: #fff;
    margin-top: 50px;
    border-top: 1px solid var(--light-gray);
}

footer a {
    color: var(--primary);
    text-decoration: none;
    margin: 0 12px;
}

#backToTop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    cursor: pointer;
    display: none;
    transition: opacity 0.3s, transform 0.3s;
}

#backToTop:hover {
    transform: scale(1.1);
}

@media(max-width: 600px) {
    .input-section {
        flex-direction: column;
    }
    .filter-section {
        flex-wrap: wrap;
    }
}
/* style.css */

/* --- Global Styles & Variables --- */
:root {
  --primary: #0056ff;
  --secondary: linear-gradient(135deg, #00E0FF, #00FFFF); /* Bright Cyan Gradient */
  --text: #222;
}

body {
  font-family: Poppins, sans-serif;
  margin: 0;
  background: var(--secondary);
  color: var(--text);
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

/* --- Header Styles --- */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(90deg, #0056ff, #00aaff);
  padding: 15px 30px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: auto;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo-img {
  margin-right: 12px;
  filter: brightness(1) invert(0.9) sepia(0.8) saturate(3) hue-rotate(45deg);
}

.logo-text {
  font-size: 24px;
  color: #fff;
  text-shadow: 1px 1px 5px rgba(0,0,0,0.3);
  font-weight: 700;
}

/* Navbar links */
#navbar {
  display: flex;
  align-items: center;
  gap: 20px;
}

#navbar a {
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  padding: 5px 0;
}

#navbar a:hover {
  color: #fffa;
  transform: scale(1.1);
}

/* Hamburger Icon */
#hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  z-index: 1002;
}

#hamburger span {
  width: 25px;
  height: 3px;
  background: #fff;
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* Dropdown styles */
.dropdown {
  position: relative;
}

.dropbtn {
  background: none;
  border: none;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  font-family: Poppins, sans-serif;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #0056ff;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  min-width: 180px;
  z-index: 999;
  border: 1px solid #004acb;
}

.dropdown-content a {
  display: block;
  padding: 10px 15px;
  color: #ffffff;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.dropdown-content a:hover {
  background-color: #004acb;
}

.dropdown:hover .dropdown-content {
  display: block;
}

/* --- Mobile Responsive Menu --- */
@media screen and (max-width: 768px) {
  #hamburger {
    display: flex;
  }

  #navbar {
    position: fixed;
    top: 80px;
    right: 15px;
    width: 250px;
    background: linear-gradient(180deg, #0056ff, #00399d);
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 0;
    gap: 0;
    box-shadow: -5px 5px 15px rgba(0,0,0,0.25);
    z-index: 1001;
    border-radius: 12px;
    transform: translateX(110%);
    transition: transform 0.3s ease-in-out;
  }

  #navbar.show {
    display: flex;
    transform: translateX(0);
  }

  #navbar a, .dropdown {
    padding: 15px 25px;
    text-align: left;
    width: 100%;
    box-sizing: border-box;
  }

  .dropdown-content {
    position: static;
    display: none;
    background: rgba(0, 0, 0, 0.2);
    box-shadow: none;
    border-radius: 0;
    border: none;
    min-width: 100%;
  }

  .dropdown-content a {
    color: #e0f7ff;
    font-weight: normal;
    padding-left: 40px;
  }

  .dropdown.active .dropdown-content {
    display: block;
  }
}

/* --- Footer Styles --- */
footer a {
  text-decoration: none;
  color: var(--primary);
  margin-right: 15px;
}

footer a:hover {
  color: #0039c1;
}

/* Social media icon hover effect */
.footer-social a:hover {
    transform: scale(1.15);
}