/* CSS Variables */
:root {
  --bg-light: #fafafa;
  --bg-dark: #1e293b;
  --bg-dark-accent: #334155;
  --bg-light-transparent: rgba(255, 255, 255, 0.9);
  --bg-dark-transparent: rgba(30, 41, 59, 0.9);
  --text-light: #1f2937;
  --text-dark: #f1f5f9;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --green-light: #ecfdf5;
  --green: #10b981;
  --green-dark: #047857;
  --green-accent: #34d399;
  --green-tag: #6ee7b7;
  --blue: #3b82f6;
  --purple: #8b5cf6;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.8s ease-out forwards;
}

.animate-delay-1 {
  animation-delay: 0.1s;
}
.animate-delay-2 {
  animation-delay: 0.2s;
}
.animate-delay-3 {
  animation-delay: 0.3s;
}

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Base */
* {
  box-sizing: border-box;
}

html,
body {
  overscroll-behavior-y: none;
  height: 100%;
  width: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg-light);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
}

.dark body {
  background-color: var(--bg-dark);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("/assets/images/background.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--green-accent);
}

.dark a:hover {
  color: var(--green-dark);
}

/* Layout */
.banner-header {
  background-color: var(--bg-light);
  padding: 1.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-light);
  text-align: center;
}

.dark .banner-header {
  background-color: var(--bg-dark);
  color: var(--text-dark);
  border-bottom: 1px solid var(--bg-dark-accent);
}

.banner-title {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.05em;
  color: var(--text-light);
}

.dark .banner-title {
  color: var(--green-accent);
}

@media (min-width: 768px) {
  .banner-title {
    font-size: 2.5rem;
  }
}

.banner-subtitle {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.banner-footer {
  background-color: var(--bg-light);
  padding: 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: auto;
}

.dark .banner-footer {
  background-color: var(--bg-dark);
  border-top: 1px solid var(--bg-dark-accent);
}

.main-content {
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  padding: 2rem 1rem;
  flex-grow: 1;
  background-color: var(--bg-light-transparent);
}

.dark .main-content {
  background-color: var(--bg-dark-transparent);
}

@media (min-width: 640px) {
  .main-content {
    max-width: 640px;
  }
}
@media (min-width: 768px) {
  .main-content {
    max-width: 768px;
  }
}
@media (min-width: 1024px) {
  .main-content {
    max-width: 1024px;
  }
}
@media (min-width: 1280px) {
  .main-content {
    max-width: 1280px;
  }
}

/* Titles */
.category-title,
.home-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--text-light);
  margin: 0.5rem 0;
}

.dark .category-title,
.dark .home-title {
  color: var(--text-dark);
}

.home-title {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  display: block;
}

.category-subtitle,
.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-light);
  margin: 0 0.5rem 0 0;
}

.dark .category-subtitle,
.dark .card-title {
  color: var(--text-dark);
}

.card-subtitle {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-light);
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 0;
}

.dark .card-subtitle {
  color: var(--text-dark);
}

.card-title-container {
  display: block;
}

.card-title-container .card-title,
.card-title-container .card-subtitle {
  display: inline-block;
  vertical-align: bottom;
}

/* Navigation */
.nav-header {
  box-shadow: var(--shadow-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  padding: 0.25rem;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--green);
  background-color: var(--green-light);
}

.dark .nav-link {
  color: var(--text-dark);
}

.dark .nav-link:hover {
  color: var(--green-light);
  background-color: var(--green-dark);
}

.nav-link.active {
  color: var(--green-dark);
  background-color: var(--green-light);
}

.dark .nav-link.active {
  color: white;
  background-color: var(--green-dark);
}

.nav-footer-link {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-left: 0.5rem;
}

.nav-link:hover,
.nav-footer-link:hover {
  color: var(--green);
}

.dark .nav-footer-link {
  color: var(--green);
}

.dark .nav-link:hover,
.dark .nav-footer-link:hover {
  color: var(--green-light);
}

.nav-link i {
  font-size: 1.25rem;
  margin-right: 0.25rem;
}

/* Cards */
.card-container,
.card-container-static,
.mini-card-container,
.nav-card {
  width: 100%;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background-color: white;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.card-container,
.mini-card-container,
.nav-card {
  cursor: pointer;
  text-decoration: none;
}

.card-container:hover,
.mini-card-container:hover,
.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-accent);
}

.dark .card-container,
.dark .card-container-static,
.dark .mini-card-container,
.dark .nav-card {
  background-color: var(--bg-dark-accent);
  border-color: var(--bg-dark-accent);
}

.dark .card-container:hover,
.dark .mini-card-container:hover,
.dark .nav-card:hover {
  border-color: var(--green);
}

.nav-card {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.mini-card-container {
  padding: 0.5rem;
}

.card-content {
  width: 100%;
  flex: 1;
}

.card-image {
  width: 6rem;
  height: 6rem;
  border-radius: 0.25rem;
  margin-right: 1rem;
  flex-shrink: 0;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-date {
  font-size: 0.75rem;
  margin: 0.25rem 0;
  font-weight: 700;
  color: var(--text-muted);
}

.dark .card-date {
  color: var(--border);
}

.card-body {
  margin: 0.5rem 1rem 0.5rem 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dark .card-body {
  color: var(--border);
}

.card-tag {
  font-size: 0.75rem;
  margin: 0.125rem 0.25rem 0 0;
  padding: 0.125rem 0.375rem;
  font-weight: 700;
  background-color: var(--green-tag);
  color: var(--text-muted);
  border-radius: 9999px;
  display: inline-block;
}

.tag-container {
  display: flex;
  flex-wrap: wrap;
}

.card-header-center {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-light);
  margin: 0.25rem 0.5rem 0.25rem 0;
}

.card-header-center i {
  margin-right: 0.5rem;
}

.dark .card-header-center {
  color: var(--text-dark);
}

.card-footer-split {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Grids */
.section-grid-2,
.section-grid-3 {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.section-grid-2 {
  grid-template-columns: 1fr;
  gap: 2rem;
}

.section-grid-3 {
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .section-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .section-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-list-element {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .grid-list-element {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-list-element {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Content */
.intro-text,
.content-text {
  font-size: 1rem;
  margin: 0.5rem 0;
  color: var(--text-light);
}

.dark .intro-text,
.dark .content-text {
  color: var(--text-dark);
}

.intro-section {
  text-align: center;
}

.intro-text {
  max-width: 48rem;
  margin: 0.5rem auto;
}

.copywrite-text {
  margin: 0.5rem 0;
  color: var(--text-dark);
}

.dark .copywrite-text {
  color: var(--text-light);
}

.home-footer {
  text-align: center;
  width: 100%;
  margin: 2rem auto 0;
  padding: 2rem;
  background-color: transparent;
  border-top: 1px solid var(--border);
}

.dark .home-footer {
  background-color: transparent;
  border-color: var(--bg-dark-accent);
}

.header-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.tech-stack-column {
  text-align: center;
  margin-bottom: 0.25rem;
}

.tech-stack-column .card-subtitle {
  margin-top: 0;
}

/* Forms */
.form-container {
  max-width: 56rem;
  margin: 0 auto;
}

.form-field {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.form-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 0.25rem;
}

.dark .form-label {
  color: var(--text-dark);
}

.form-input,
.form-select,
.form-textarea,
.login-input,
.filter-select {
  width: 100%;
  font-size: 1rem;
  color: var(--text-muted);
  background-color: white;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
  transition: all 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--green);
  border-color: var(--green);
}

.dark .form-input,
.dark .form-select,
.dark .form-textarea,
.dark .login-input,
.dark .filter-select {
  color: var(--border);
  background-color: var(--text-muted);
  border-color: var(--text-muted);
}

.form-textarea {
  height: 16rem;
  resize: vertical;
}

.login-input {
  max-width: 32rem;
}

#login-container label {
  display: inline-block;
  width: 6rem;
  text-align: right;
  margin-right: 0.5rem;
}

.filter-select {
  font-size: 0.875rem;
  width: auto;
  margin-left: 0.5rem;
}

.action-form {
  display: inline;
}

/* View Options (Filter) */
.view-options {
  display: inline-flex;
  gap: 0.25rem;
  margin-left: 0.5rem;
  vertical-align: middle;
}

.view-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 0.25rem;
  font-size: 1rem;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.view-btn i {
  margin-right: 0;
}

.view-btn:hover {
  background-color: var(--bg-light);
  color: var(--text-light);
}

.view-btn.active {
  background-color: var(--green-light);
  color: var(--green-dark);
  border-color: var(--green);
}

.dark .view-btn {
  border-color: var(--bg-dark-accent);
  color: var(--text-dark);
}

.dark .view-btn:hover {
  background-color: var(--bg-dark-accent);
}

.dark .view-btn.active {
  background-color: var(--green-dark);
  color: white;
  border-color: var(--green);
}

/* Interactive Elements */
.button {
  background-color: var(--green);
  color: white;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.dark .button {
  background-color: var(--green-dark);
}

.button:hover {
  background-color: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.dark .button:hover {
  background-color: var(--green);
}

/* Utilities */
.highlight-green {
  color: var(--green);
}
.highlight-blue {
  color: var(--blue);
}
.highlight-purple {
  color: var(--purple);
}
.dark .highlight-green {
  color: var(--green);
}
.dark .highlight-blue {
  color: var(--blue);
}
.dark .highlight-purple {
  color: var(--purple);
}

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

.link-item {
  cursor: pointer;
  transition: color 0.15s;
}

.dark .page-list .link-item {
  color: var(--green);
}

.dark .page-list .link-item:hover {
  color: var(--green-light);
}

/* Font Awesome Icon Colors */
.fa-newspaper {
  color: var(--blue);
}
.fa-github {
  color: var(--purple);
}
.fa-book {
  color: var(--green);
}
.fa-house {
  color: var(--green);
}
.fa-question {
  color: var(--blue);
}
.fa-code {
  color: var(--purple);
}
.fa-diagram-project {
  color: var(--purple);
}
.fa-solid,
.fa-brands {
  margin-right: 0.25rem;
}