:root {
  --bg-main: #090a0f;
  --bg-surface: #11131a;
  --bg-surface-hover: #171a24;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(255, 255, 255, 0.28);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #64748b;
  
  --accent-btn: #222631;
  --accent-btn-hover: #2e3443;
  --accent-border: rgba(255, 255, 255, 0.16);
  --accent-tag-bg: #161820;
  --accent-icon: #94a3b8;
  --success: #10b981;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 10px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Plátno na pozadí */
.bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.header, main, .footer {
  position: relative;
  z-index: 1;
}

/* Toast notifikace */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  background-color: #171a23;
  border: 1px solid var(--accent-border);
  color: var(--text-main);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(15px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Lightbox Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  padding: 20px;
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(4, 5, 8, 0.88);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  z-index: 10;
  background-color: var(--bg-surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  max-width: 960px;
  width: 100%;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  transform: scale(0.96);
  transition: transform 0.25s ease;
}

.modal.open .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.08);
}

.modal-body {
  padding: 12px;
  background-color: #050608;
  display: flex;
  justify-content: center;
  align-items: center;
  max-height: 80vh;
  overflow: auto;
}

.modal-body img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}

/* Navigace */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(9, 10, 15, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo-sub {
  color: var(--accent-icon);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-main);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
}

/* Tlačítka */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}

.btn-primary {
  background-color: var(--accent-btn);
  border-color: var(--accent-border);
  color: var(--text-main);
}

.btn-primary:hover {
  background-color: var(--accent-btn-hover);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-muted);
}

.btn-secondary:hover {
  background-color: var(--bg-surface);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Ikony */
.icon {
  width: 18px;
  height: 18px;
  vertical-align: middle;
}

.icon-inline {
  width: 15px;
  height: 15px;
  vertical-align: middle;
}

.icon-accent {
  width: 18px;
  height: 18px;
  color: var(--accent-icon);
  flex-shrink: 0;
}

.icon-copy {
  width: 14px;
  height: 14px;
  color: var(--text-dim);
  transition: var(--transition);
}

/* Hero sekce */
.hero {
  padding: 95px 0 65px;
}

.hero-content {
  max-width: 800px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--accent-tag-bg);
  border: 1px solid var(--accent-border);
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.location-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 20px;
}

.highlight {
  background: linear-gradient(180deg, #ffffff 30%, #9ca3af 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}

.quick-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.copy-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.copy-pill:hover {
  background-color: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-main);
}

.copy-pill:hover .icon-copy {
  color: var(--text-main);
}

/* Záhlaví podstránek */
.page-intro {
  padding: 60px 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.page-intro h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}

/* Rozcestník na indexu */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
}

.portal-card {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 30px;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.portal-card:hover {
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
}

.portal-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-icon);
  margin-bottom: 20px;
}

.portal-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.portal-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.portal-link {
  font-size: 0.88rem;
  color: var(--accent-icon);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.portal-card:hover .portal-link {
  color: #ffffff;
}

/* Sekce obecně */
.section {
  padding: 75px 0;
}

.bg-alt {
  background-color: rgba(17, 19, 26, 0.75);
  backdrop-filter: blur(10px);
}

.section-header {
  margin-bottom: 44px;
}

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

.section-tag {
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-icon);
  letter-spacing: 1.5px;
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.section-header h2 {
  font-size: 2.1rem;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-muted);
  max-width: 580px;
  margin: 10px 0 0;
}

.text-center .section-desc {
  margin: 10px auto 0;
}

/* Projekty */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-4px);
}

.browser-frame {
  background-color: #0c0e14;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.dot.red { background-color: #ef4444; }
.dot.yellow { background-color: #eab308; }
.dot.green { background-color: #10b981; }

.browser-address {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  background-color: rgba(255, 255, 255, 0.04);
  padding: 4px 12px;
  border-radius: 4px;
  width: 100%;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition);
  cursor: pointer;
}

.browser-address:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.icon-external {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.browser-address:hover .icon-external {
  transform: translate(1px, -1px);
}

/* Styl pro proklikávací nadpis projektu */
.project-title-link {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.project-title-link .icon-inline {
  width: 16px;
  height: 16px;
  opacity: 0.5;
  transition: var(--transition);
}

.project-title-link:hover {
  color: #ffffff;
}

.project-title-link:hover .icon-inline {
  opacity: 1;
  transform: translate(2px, -2px);
  color: var(--text-main);
}

.project-thumb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: #0c0f17;
  overflow: hidden;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
}

.project-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.35s ease;
  display: block;
}

.thumb-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(7, 8, 12, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
  backdrop-filter: blur(3px);
}

.thumb-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--accent-btn);
  border: 1px solid var(--accent-border);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  transform: translateY(6px);
  transition: transform 0.25s ease;
}

.project-thumb-container:hover .project-thumb {
  transform: scale(1.04);
}

.project-thumb-container:hover .thumb-overlay {
  opacity: 1;
}

.project-thumb-container:hover .thumb-action {
  transform: translateY(0);
}

.project-thumb.is-fallback {
  object-fit: contain;
  padding: 30px;
  opacity: 0.7;
}

.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-meta {
  margin-bottom: 6px;
}

.project-category {
  font-size: 0.78rem;
  color: var(--accent-icon);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-body h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.project-body p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tags li {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background-color: var(--bg-main);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  color: var(--text-dim);
}

/* O mně & Statistiky */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-text h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.1;
  display: block;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Timeline */
.timeline {
  position: relative;
  border-left: 2px solid var(--border-color);
  margin-left: 12px;
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-main);
  border: 3px solid #64748b;
}

.timeline-date {
  font-size: 0.85rem;
  color: var(--accent-icon);
  font-weight: 600;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.timeline-content h3 {
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-dim);
  display: block;
  margin-bottom: 12px;
}

.timeline-content p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-bottom: 14px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-list span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-muted);
}

/* Dovednosti */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.skill-group {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}

.skill-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.skill-group-title h3 {
  font-size: 1.05rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tags span {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Vzdělání */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.edu-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 26px;
  border-radius: var(--radius);
}

.edu-date {
  font-size: 0.85rem;
  color: var(--accent-icon);
  font-weight: 600;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.edu-card h3 {
  font-size: 1.15rem;
  margin-bottom: 4px;
}

.edu-field {
  display: block;
  font-size: 0.92rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.edu-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Kontakt */
.contact-container {
  max-width: 620px;
}

.contact-info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
}

.info-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

.info-card strong {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.info-card span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.contact-form {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-focus);
}

.form-status {
  font-size: 0.9rem;
  text-align: center;
  min-height: 20px;
}

.form-status.success {
  color: var(--success);
}

.form-status.error {
  color: #ef4444;
}

/* Zápatí */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

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

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-main);
}

/* Responzivita */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .contact-info-cards {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}