/* Custom styles (Bootstrap loaded via CDN) */
:root {
  --brand-primary: #6366f1;
  --brand-primary-dark: #4338ca;
  --brand-primary-light: #a5b4fc;
  --brand-neutral-900: #0f172a;
  --brand-neutral-100: #f8fafc;
  --brand-accent: #ec4899;
  --bs-primary-rgb: 99, 102, 241;
  --bs-body-font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --text-muted: #64748b;
}

body {
  font-family: var(--bs-body-font-family);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

a {
  color: var(--brand-primary-dark);
  text-decoration-color: rgba(67, 56, 202, 0.35);
  text-decoration-thickness: 2px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover,
a:focus {
  color: #312e81;
  text-decoration-color: rgba(49, 46, 129, 0.6);
}

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

.btn {
  font-weight: 600;
  border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.35);
  outline-offset: 2px;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(99, 102, 241, 1), rgba(79, 70, 229, 1));
  border: none;
  color: var(--brand-neutral-100);
  box-shadow: 0 12px 30px rgba(79, 70, 229, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, rgba(79, 70, 229, 1), rgba(67, 56, 202, 1));
  color: var(--brand-neutral-100);
  box-shadow: 0 18px 34px rgba(67, 56, 202, 0.35);
}

.btn-outline-primary {
  color: var(--brand-primary-dark);
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(99, 102, 241, 0.08);
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.12);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  color: #f8faff !important;
  background: #312e81;
  border-color: transparent;
  box-shadow: 0 14px 32px rgba(49, 46, 129, 0.35);
}

.btn-outline-primary:hover .bi,
.btn-outline-primary:focus .bi {
  color: #f8faff !important;
}

.btn-outline-light {
  color: var(--brand-neutral-100);
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  color: var(--brand-neutral-900);
  background: rgba(255, 255, 255, 0.9);
}

.btn-light {
  color: var(--brand-neutral-900);
  background: var(--brand-neutral-100);
  box-shadow: 0 16px 30px rgba(248, 250, 252, 0.32);
}

.btn-light:hover,
.btn-light:focus {
  background: #ffffff;
  color: var(--brand-primary-dark);
}

.tracking-wide {
  letter-spacing: 0.08em;
}

/* Subtle Matrix-style inline code */
code {
  background-color: #f8f9fa !important;
  color: #198754 !important;
  border: 1px solid #d4edda !important;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.9em;
  font-weight: 500;
}

.highlight {
  background-color: #f8f9fa !important;
  border: 1px solid #e9ecef !important;
  border-radius: 8px;
  padding: 1rem;
  margin: 1rem 0;
  overflow-x: auto;
}

/* Card hover effects */
.card {
  transition: transform 0.2s ease-in-out;
}

.card:hover {
  transform: translateY(-2px);
}

/* Navbar enhancements */
.navbar-brand {
  font-size: 1.5rem;
}

/* Soft shadows and better readability */
.card {
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.12) !important;
  border: 1px solid rgba(15, 23, 42, 0.06) !important;
  border-radius: 1.25rem;
  background: #ffffff;
}

.jumbotron {
  background: linear-gradient(135deg, #0d6efd, #0b5ed7) !important;
  color: white !important;
}

.jumbotron h1,
.jumbotron p,
.jumbotron .lead {
  color: white !important;
}

/* Bootstrap Icons sizing */
.bi {
  font-size: 1.2em;
  /* Domyślnie większe ikony */
}

/* Większe ikony w różnych kontekstach */
.navbar .bi {
  font-size: 1.3em;
  margin-right: 0.3em;
}

.display-4 .bi {
  font-size: 2.5rem;
  /* Duże ikony w hero section */
}

.card-title .bi,
.btn .bi {
  font-size: 1.1em;
  margin-right: 0.2em;
}

.text-muted .bi {
  font-size: 1em;
  margin-right: 0.3em;
}

/* Footer improvements */
footer a {
  color: rgba(11, 18, 79, 0.78) !important;
}

footer a:hover {
  color: #881580 !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: #212529;
}

.hero-section {
  background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.9), rgba(79, 70, 229, 0.92));
  color: var(--brand-neutral-100);
}

.hero-section h1,
.hero-section p,
.hero-section .hero-badge {
  color: var(--brand-neutral-100);
}

.hero-section .btn-light {
  color: var(--brand-neutral-900);
}

.hero-section .btn-outline-light:hover {
  color: var(--brand-neutral-900);
}

.hero-section .hero-badge {
  backdrop-filter: blur(6px);
  border: 1px solid rgba(13, 110, 253, 0.25);
}

.hero-section .card-header {
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  letter-spacing: 0.08em;
}

.hero-section .card-body {
  background: rgba(15, 23, 42, 0.65);
}

.hero-section pre {
  background: transparent;
  color: #f8f9fa;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  white-space: pre-wrap;
}

.hero-glow {
  position: absolute;
  inset: 10% auto -20% 10%;
  width: 40rem;
  height: 40rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25), transparent 70%);
  filter: blur(120px);
  pointer-events: none;
}

.hero-metrics .metric-card {
  border: 1px solid rgba(13, 110, 253, 0.15) !important;
  backdrop-filter: blur(6px);
}

.icon-wrap {
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.icon-wrap i {
  line-height: 0;
}

.feature-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(13, 110, 253, 0.15) !important;
}

.hero-banner {
  --hero-gradient-start: #2563eb;
  --hero-gradient-end: #7c3aed;
  background: linear-gradient(135deg, var(--hero-gradient-start), var(--hero-gradient-end));
  color: #fff;
}

.hero-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.18), transparent 55%);
  opacity: 0.6;
  pointer-events: none;
}

.hero-banner-glow {
  position: absolute;
  inset: auto 10% -30% auto;
  width: 32rem;
  height: 32rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22), transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.hero-banner-badge {
  backdrop-filter: blur(8px);
}

.hero-banner-extra {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.hero-banner-extra .card-body {
  background: rgba(15, 23, 42, 0.9);
  color: #f8fafc;
}

.hero-banner-extra .text-muted {
  color: rgba(226, 232, 240, 0.7) !important;
}

.hero-metric-tile {
  background: rgba(15, 23, 42, 0.75);
  border-radius: 1rem;
  padding: 1.25rem;
}

.hero-metric-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: #f8fafc;
}

.hero-metric-label {
  margin-top: 0.35rem;
  letter-spacing: 0.08em;
  color: rgba(226, 232, 240, 0.7);
}

.hero-alert {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(250, 204, 21, 0.2);
  border: 1px solid rgba(250, 204, 21, 0.4);
  color: #fde68a;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
}

.hero-banner {
  color: var(--brand-neutral-100);
}

.hero-banner h1,
.hero-banner p,
.hero-banner .badge {
  color: var(--brand-neutral-100);
}

.hero-banner .badge {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: var(--brand-neutral-100);
}

.hero-banner .btn-light {
  color: var(--brand-neutral-900);
}

.hero-banner .btn-outline-light {
  border-color: rgba(255, 255, 255, 0.55);
}

.hero-banner--sunset {
  --hero-gradient-start: #f97316;
  --hero-gradient-end: #fb923c;
}

.hero-banner--forest {
  --hero-gradient-start: #0ea5e9;
  --hero-gradient-end: #10b981;
}

.hero-banner--orchid {
  --hero-gradient-start: #8b5cf6;
  --hero-gradient-end: #ec4899;
}

.hero-banner--slate {
  --hero-gradient-start: #475569;
  --hero-gradient-end: #334155;
}

.page-content-section--overlap {
  margin-top: -1rem;
  padding-top: 2.5rem;
}

.page-content-section .card {
  border-radius: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.recent-posts article {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.recent-posts article:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
}

.cta-section {
  background: linear-gradient(135deg, rgba(248, 249, 250, 0.7), rgba(233, 236, 239, 0.95));
}

.cta-visual {
  background: linear-gradient(135deg, rgba(13, 110, 253, 0.9), rgba(32, 201, 151, 0.8));
  position: relative;
}

.cta-visual::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 1.5rem;
  border: 2px dashed rgba(255, 255, 255, 0.4);
}

.badge.bg-outline-primary {
  color: var(--brand-primary-dark);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.4);
}

.archive-card {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 1.75rem;
  border-radius: 1.5rem;
  background: linear-gradient(145deg, rgba(248, 250, 255, 0.95), rgba(255, 255, 255, 0.95));
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.archive-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 55px rgba(15, 23, 42, 0.14);
}

.archive-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  color: var(--brand-primary-dark);
  font-weight: 600;
  font-size: 0.75rem;
  margin-bottom: 1.1rem;
}

.archive-card--log .archive-card__badge {
  background: rgba(236, 72, 153, 0.12);
  color: rgba(190, 24, 93, 1);
}

.archive-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 999px;
  color: inherit;
  font-size: 0.9rem;
}

.archive-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.archive-card__summary {
  font-size: 0.95rem;
  line-height: 1.55;
}

.archive-card__meta {
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}

.archive-card__footer .btn {
  flex-shrink: 0;
}

.archive-card__date {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.archive-page h2 {
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 1.05rem;
}

.archive-page h2:first-of-type {
  margin-top: 2.25rem;
}

.timeline-badges-wrapper .badge {
  border-radius: 999px;
  min-width: 6.5rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.timeline-badges-wrapper .badge:not(.disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(99, 102, 241, 0.25);
}

.timeline-badges-wrapper .badge.disabled {
  cursor: not-allowed;
}

.timeline-wrapper {
  position: relative;
}

.timeline-track {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 992px) {
  .timeline-track {
    flex-direction: row;
    align-items: stretch;
  }
}

.timeline-node {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1 1 0;
  min-width: 0;
}

.timeline-badge {
  align-self: center;
  padding: 0.65rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
}

.timeline-card {
  background: #ffffff;
  border-radius: 1.25rem;
  border: 1px solid rgba(15, 23, 42, 0.08);
  height: 100%;
}

.timeline-card ul.list-inline {
  margin-bottom: 1.25rem;
}

.timeline-preview .list-group-item {
  border: none;
  padding-inline: 0;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.timeline-preview .list-group-item:first-child {
  padding-top: 0;
}

.timeline-preview .list-group-item:last-child {
  padding-bottom: 0;
}

.timeline-preview .btn {
  border-radius: 999px;
}

.timeline-card .btn {
  align-self: flex-start;
}

.table thead th {
  color: var(--brand-neutral-900);
  border-bottom-color: rgba(15, 23, 42, 0.08);
  font-weight: 600;
}

.table-striped tbody tr:nth-of-type(odd) {
  --bs-table-striped-bg: rgba(99, 102, 241, 0.04);
}

.table tbody td a {
  text-decoration: none;
}

.table tbody td a:hover {
  text-decoration: underline;
}

/* Challenge10k page */
.challenge-hero {
  color: #fff;
}

.challenge-scorecard .progress {
  background-color: rgba(255, 255, 255, 0.25);
}

.challenge-progress-bar {
  width: var(--progress-value, 0%);
  transition: width 0.6s ease;
}

.challenge-metrics li strong {
  font-family: 'Inter', system-ui, sans-serif;
}

.challenge-plan .phase-card {
  border-radius: 1.25rem;
}

.challenge-log-table tbody tr {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.challenge-log-table tbody tr:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

.challenge-monthly-list li {
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.challenge-monthly-list li:last-child {
  border-bottom: none;
}

.challenge-principles .card {
  border-radius: 1.25rem;
}

.challenge-media .card {
  border-radius: 1.25rem;
}

/* Compact previous/next buttons for posts, logbook, and works */
.sibling-nav {
  width: 100%;
}

.sibling-nav-btn {
  min-width: 0;
}

@media (max-width: 991.98px) {
  .sibling-nav {
    gap: 0.75rem;
  }

  .sibling-nav-btn {
    padding-inline: 0.85rem;
  }
}