/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* CalcHub Dashboard Styles */

/* CSS Custom Properties for Theming */
:root {
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --accent-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --heading-font: 'Space Grotesk', sans-serif;
  --body-font: 'Inter', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  --border-radius: 8px;
  --box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --sidebar-width: 250px;
  --header-height: 60px;
}

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

body {
  font-family: var(--body-font);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--gray-800);
  background-color: var(--gray-100);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font);
}

/* Layout */
.dashboard {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--light-color);
  border-right: 1px solid var(--gray-300);
  padding: 20px;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

.header {
  height: var(--header-height);
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-300);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  box-shadow: var(--box-shadow);
}

.content {
  flex: 1;
  padding: 20px;
}

/* Sidebar Styles */
.sidebar .logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
  padding: 15px;
  /* background: linear-gradient(135deg, var(--primary-color), var(--accent-color)); */
  /* border-radius: 12px; */
  /* box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3); */
  transition: transform 0.3s ease;
  cursor: pointer;
}

.sidebar .logo:hover {
  transform: scale(1.05);
}

.sidebar .logo i {
  font-size: 28px;
  color: var(--white);
  margin-right: 10px;
}

.sidebar .logo span {
  font-size: 26px;
  font-weight: 700;
  /* color: var(--white); */
  font-family: var(--heading-font);
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
  /* text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3); */
}

.sidebar h2 {
  margin-bottom: 30px;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 24px;
  text-align: center;
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 10px;
}

.sidebar nav ul {
  margin: 12px 0 0 0;
  list-style: none;
  padding: 0;
}

.sidebar nav ul li {
  margin-bottom: 5px;
}

.sidebar nav ul li a {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  color: var(--gray-700);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.sidebar nav ul li a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 4px;
  background-color: var(--primary-color);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.sidebar nav ul li a:hover::before,
.sidebar nav ul li a.active::before {
  transform: scaleY(1);
}

.sidebar nav ul li a:hover,
.sidebar nav ul li a.active {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--white);
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.sidebar nav ul li a i {
  font-size: 18px;
  width: 20px;
  text-align: center;
}

.sidebar .app-directory-btn {
  display: flex;
  align-items: center;
  padding: 15px 15px;
  color: var(--gray-700);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.sidebar .app-directory-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.sidebar .app-directory-btn i {
  font-size: 20px;
  width: 24px;
  text-align: center;
  margin-right: 12px;
}

.sidebar .back-btn {
  display: flex;
  align-items: center;
  padding: 15px 15px;
  color: var(--gray-700);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.sidebar .back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.sidebar .back-btn i {
  font-size: 20px;
  width: 24px;
  text-align: center;
  margin-right: 12px;
}

.sidebar .categories h3 {
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--gray-800);
  font-size: 14px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-left: 3px solid var(--primary-color);
  padding-left: 10px;
}

.close-btn {
  border: none;
  font-size: 35px;
  background-color: var(--white);
  color: var(--primary-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  position: absolute;
  top: 30px;
  right: 15px;
  font-weight: bold;
}

.close-btn:active {
  transform: scale(0.95) rotate(180deg);
}

/* Header Styles */
.back-btn-mobile {
  display: none;
  color: var(--gray-600);
  text-decoration: none;
  font-size: 18px;
  margin-right: 10px;
}

.header .search-bar {
  flex: 1;
  max-width: 400px;
  margin-right: 20px;
}

.header .search-bar input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-400);
  border-radius: var(--border-radius);
  font-size: 14px;
}

.header .icons {
  display: flex;
  align-items: center;
  gap: 15px;
}

.header .icons i {
  font-size: 20px;
  color: var(--gray-600);
  cursor: pointer;
  transition: color 0.3s ease;
}

.header .icons i:hover {
  color: var(--primary-color);
}

/* Calculator Grid */
.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 30px;
  justify-items: center;
}

.calculator-card {
  width: 100%;
  max-width: 300px;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-100) 100%);
  /* border-radius: 16px; */
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--gray-200);
  position: relative;
}

.calculator-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.calculator-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.calculator-card .card-body {
  padding: 25px;
  text-align: center;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.calculator-card .icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
  transition: transform 0.3s ease;
}

.calculator-card:hover .icon {
  transform: scale(1.1);
}

.calculator-card h3 {
  margin-bottom: 12px;
  color: var(--gray-800);
  font-weight: 600;
  font-size: 18px;
}

.calculator-card p {
  margin-bottom: 25px;
  color: var(--gray-600);
  font-size: 14px;
  line-height: 1.5;
  flex-grow: 1;
}

.calculator-card .btn {
  display: inline-block;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: var(--white);
  text-decoration: none;
  border-radius: 25px;
  transition: all 0.3s ease;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
  border: none;
  cursor: pointer;
}

.calculator-card .btn:hover {
  background: linear-gradient(135deg, var(--dark-color), var(--primary-color));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* Calculator Page Styles */
/* .calculator-container {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 30px;
}

.calculator-container h1 {
  text-align: center;
  margin-bottom: 30px;
  color: var(--primary-color);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
  color: var(--gray-800);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--gray-400);
  border-radius: var(--border-radius);
  font-size: 16px;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 12px;
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--dark-color);
}

.result {
  margin-top: 20px;
  padding: 15px;
  background-color: var(--gray-100);
  border-radius: var(--border-radius);
  text-align: center;
  font-weight: bold;
  color: var(--gray-800);
} */

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--gray-600);
  /* background-color: var(--primary-color); */
  margin: 2px 0;
  transition: 0.3s;
}

.sidebar.active .hamburger span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.sidebar.active .hamburger span:nth-child(2) {
  opacity: 0;
}

.sidebar.active .hamburger span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .calculator-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
  }

  .calculator-card {
    max-width: 280px;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
    justify-content: center;
  }

  .sidebar {
    width: 280px;
    height: 100vh;
    position: fixed;
    left: -300px;
    top: 0;
    background-color: var(--white);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    transition: left 0.3s ease;
    z-index: 1000;
    padding-top: 70px;
  }

  .sidebar.active {
    left: 0;
  }

  .sidebar .sidebar-header {
    position: fixed;
    top: 0;
    left: -500px;
    width: 280px;
    background-color: var(--white);
    padding: 15px 20px;
    border-bottom: 1px solid var(--gray-300);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1001;
    transition: left 0.3s ease;
  }

  .sidebar.active .sidebar-header {
    left: 0;
  }

  .sidebar .app-directory-btn {
    margin-top: 80px;
    margin-bottom: 20px;
  }

  .sidebar .back-btn {
    margin-top: 80px;
    margin-bottom: 20px;
  }

  .main-content {
    margin-left: 0;
    width: 100%;
  }

  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 35px;
    height: auto;
    display: flex;
    justify-content: space-between;
  }

  .logo-hamburger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 10px;
  }

  .logo-hamburger .logo {
    color: var(--primary-color);
    font-size: 25px;
    text-align: center;
    font-family: var(--heading-font);
    font-weight: bold;
  }

  .header .search-bar {
    display: none;
  }

  .content .search-bar {
    display: block;
    margin-bottom: 20px;
  }

  .search-bar {
    flex: 1;
    margin: 0 10px;
    max-width: none;
  }

  .search-bar input {
    margin: 20px 0 0 0;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-400);
    border-radius: var(--border-radius);
    font-size: 14px;
  }

  .header .icons {
    gap: 10px;
  }

  .header .icons i {
    font-size: 18px;
  }

  .content {
    padding: 80px 15px 20px;
  }

  .calculator-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 15px;
  }

  .calculator-card {
    max-width: 100%;
    margin: 0 auto;
  }

  .calculator-card .card-body {
    padding: 20px;
  }

  .calculator-card .icon {
    width: 60px;
    height: 60px;
    font-size: 24px;
    margin-bottom: 15px;
  }

  .calculator-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }

  .calculator-card p {
    font-size: 13px;
    margin-bottom: 20px;
  }

  .calculator-card .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .sidebar {
    width: 100%;
    left: -100%;
  }

  .sidebar .sidebar-header {
    width: 100%;
  }

  .sidebar .sidebar-header .logo {
    margin: 0;
  }

  .sidebar.active {
    left: 0;
  }

  .header {
    padding: 15px 25px;
  }

  .header .search-bar input {
    padding: 6px 10px;
    font-size: 13px;
  }

  .header .icons i {
    font-size: 18px;
  }

  .content {
    padding: 70px 10px 15px;
  }

  .content h1 {
    margin: 14px 0 0 0;
    font-size: 27px;
  }

  .calculator-card .card-body {
    padding: 15px;
  }

  .calculator-card .icon {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }

  .calculator-card h3 {
    font-size: 15px;
  }

  .calculator-card p {
    font-size: 12px;
  }

  .calculator-card .btn {
    padding: 8px 16px;
    font-size: 13px;
  }

  .calculator-container {
    padding: 20px;
    margin: 0 10px;
  }

  .form-group input,
  .form-group select {
    padding: 8px;
    font-size: 14px;
  }

  .btn-primary {
    padding: 10px;
    font-size: 15px;
  }
}

/* Footer Styles */
.footer {
  background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
  color: var(--white);
  text-align: center;
  padding: 30px 20px;
  margin-top: auto;
  font-size: 14px;
  border-top: 1px solid var(--gray-700);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.footer p {
  margin: 0;
  font-family: var(--body-font);
  font-weight: 400;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.footer .heart {
  color: var(--danger-color);
  font-size: 16px;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Hide close button and extra elements on desktop */
@media (min-width: 769px) {
  .close-btn {
    display: none;
  }

  .logo-hamburger {
    display: none;
  }

  .content .search-bar {
    display: none;
  }
}