/* ===================================================
   Scandinavian Clean CSS for Faktotéka vědy
   Brand: Faktotéka vědy
   Style: Scandinavian-inspired clean, light, elegant
   Author: Professional CSS/UI developer
   =================================================== */

/* =====================  CSS RESET  ===================== */
html { box-sizing: border-box; }
*, *:before, *:after { box-sizing: inherit; }
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center, dl, dt, dd, ol, ul, li,
fieldset, form, label, legend, table, caption,
tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section {
  display: block;
}
body {
  line-height: 1.6;
  background: #F3F6FB;
  color: #163553;
  min-height: 100vh;
}
ul, ol {
  list-style: none;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color .2s;
}
img {
  max-width: 100%;
  height: auto;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  background: none;
  border: none;
  color: inherit;
}

/* =====================  ROOT VARS  ===================== */
:root {
  --color-primary: #163553;
  --color-secondary: #199996;
  --color-accent: #F3F6FB;
  --color-bg: #F7FAFC;
  --color-bg-card: #fff;
  --color-border: #e3e6eb;
  --color-shadow: rgba(22,53,83,0.07);
  --color-shadow-strong: rgba(22,53,83,0.1);
  --color-hover: #16355310;
  --color-focus: #19999622;
  --color-darktext: #163553;
  --color-mediumtext: #2E537A;
  --color-lighttext: #678099;

  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px 0 var(--color-shadow);
  --shadow-strong: 0 6px 24px 0 var(--color-shadow-strong);

  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Open Sans', Arial, Helvetica, sans-serif;
}

/* =====================  BASE TYPOGRAPHY  ===================== */
body {
  font-family: var(--font-body);
  font-size: 16px;
  letter-spacing: 0.01em;
  background: var(--color-accent);
  color: var(--color-darktext);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  margin-bottom: 16px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-primary);
}
h1 { font-size: 2.25rem; margin-top: 0; margin-bottom: 24px; }
h2 { font-size: 1.5rem; margin-bottom: 20px; }
h3 { font-size: 1.125rem; margin-bottom: 12px; }
h4, h5, h6 { font-size: 1rem; margin-bottom: 10px; }
p, li {
  font-size: 1rem;
  color: var(--color-darktext);
  margin-bottom: 12px;
}
p.subheadline {
  color: var(--color-mediumtext);
  font-size: 1.25rem;
  margin-bottom: 32px;
  font-weight: 500;
}
.text-section {
  margin-bottom: 32px;
}
strong {
  color: var(--color-primary);
}

/* ======================  LAYOUT HELPERS  ====================== */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}
.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.section {
  margin-bottom: 60px;
  padding: 40px 20px;
}
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-3px);
}
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* =============== FLEXBOX-ONLY RESPONSIVE GRIDS ============== */
.feature-grid, .fact-grid, .article-grid, .highlighted-articles {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}
.feature-grid > li, .fact-grid > div, .article-grid > article, .highlighted-articles > article {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex: 1 1 260px;
  min-width: 220px;
  max-width: 340px;
  padding: 26px 20px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow .2s, transform .2s;
  margin-bottom: 20px;
}
.feature-grid > li:hover, .fact-grid > div:hover, .article-grid > article:hover, .highlighted-articles > article:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-2px) scale(1.01);
}
.fun-facts {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 10px;
}
.fun-facts li {
  display: flex;
  align-items: center;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  box-shadow: 0 1px 4px 0 var(--color-shadow);
  font-size: 1rem;
  gap: 12px;
  color: var(--color-mediumtext);
  min-width: 210px;
}
@media (max-width: 1100px) {
  .feature-grid > li, .fact-grid > div, .article-grid > article {
    flex: 1 1 210px;
    max-width: 100%;
  }
}
@media (max-width: 900px) {
  .container { padding-left: 8px; padding-right: 8px; }
}
@media (max-width: 768px) {
  .feature-grid, .fact-grid, .article-grid, .highlighted-articles, .fun-facts {
    flex-direction: column;
    gap: 18px;
  }
  .feature-grid > li, .fact-grid > div, .article-grid > article, .highlighted-articles > article {
    min-width: 0;
    max-width: 100%;
    flex: 1 1 100%;
  }
}

/* All content sections spacing and gap rules */
section, .section {
  margin-bottom: 60px;
  padding: 40px 20px;
}
@media (max-width: 540px) {
  .section, section { padding: 28px 4px; }
}

/* =====================   HERO SECTIONS   ===================== */
.hero {
  background: linear-gradient(110deg, var(--color-accent) 70%, #E3F1EF 100%);
  padding-top: 56px;
  padding-bottom: 56px;
  box-shadow: 0 2px 16px 0 var(--color-shadow);
}
.hero .container {
  display: flex;
  align-items: center;
}
.hero .content-wrapper {
  align-items: flex-start;
  gap: 18px;
}
.hero h1 {
  font-size: 2.5rem;
}
.hero .cta-primary {
  margin-top: 18px;
}

/* ================== CALL TO ACTION SECTIONS ================== */
.cta {
  background: var(--color-secondary);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  margin-bottom: 60px;
  padding: 40px 0;
}
.cta .container { max-width: 800px; }
.cta h2, .cta p {
  color: #fff;
}
.cta .cta-primary {
  background: #fff;
  color: var(--color-secondary);
  border: none;
}
.cta .cta-primary:hover,
.cta .cta-primary:focus {
  color: #fff;
  background: var(--color-primary);
}
@media (max-width: 500px) {
  .cta { padding: 20px 0; }
}

/* ==================   NAVIGATION BAR   =================== */
header {
  background: #fff;
  box-shadow: 0 1px 10px 0 var(--color-shadow);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 40;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 0;
  max-width: 1160px;
  margin: 0 auto;
}
.main-nav .logo-link {
  margin-right: 32px;
}
.main-nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-primary);
  letter-spacing: 0.01em;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background .18s, color .2s;
  font-weight: 500;
}
.main-nav .cta-primary {
  background: var(--color-secondary);
  color: #fff;
  margin-left: 18px;
  transition: background .2s, color .2s, box-shadow .25s;
  box-shadow: 0 2px 8px 0 var(--color-shadow);
}
.main-nav a:hover, .main-nav a:focus {
  background: var(--color-hover);
  color: var(--color-secondary);
}
.main-nav .cta-primary:hover, .main-nav .cta-primary:focus {
  background: var(--color-primary);
  color: #fff;
}
.mobile-menu-toggle {
  display: none;
  position: absolute;
  right: 18px; top: 14px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-primary);
  cursor: pointer;
  z-index: 55;
  transition: color .2s;
}
.mobile-menu-toggle:focus {
  color: var(--color-secondary);
  outline: 2px solid var(--color-secondary);
}
@media (max-width: 992px) {
  .main-nav a:not(.logo-link):not(.cta-primary) { font-size: .98rem; }
  .main-nav .logo-link { margin-right: 16px; }
}
@media (max-width: 820px) {
  .main-nav {
    gap: 8px;
  }
}
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
}

/* ================= MOBILE SLIDE-IN MENU =================== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: #fff;
  box-shadow: 0 6px 32px 0 var(--color-shadow-strong);
  z-index: 120;
  transform: translateX(100%);
  transition: transform .38s cubic-bezier(.59,.01,.4,1), opacity .28s;
  opacity: 0;
  display: flex;
  flex-direction: column;
  pointer-events: none;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-mediumtext);
  align-self: flex-end;
  margin: 24px 18px 8px 0;
  font-size: 2.4rem;
  cursor: pointer;
  z-index: 121;
  transition: color .2s;
}
.mobile-menu-close:hover,
.mobile-menu-close:focus {
  color: var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 36px 24px 0 32px;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-primary);
  padding: 12px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background .19s, color .19s;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: var(--color-hover);
  color: var(--color-secondary);
}
@media (min-width: 769px) {
  .mobile-menu { display: none!important; }
  .mobile-menu-toggle { display: none!important; }
}

/* ===================   BUTTON STYLES   =================== */
.cta-primary, .btn, button, input[type=submit] {
  display: inline-block;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 1.09rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  background: var(--color-secondary);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px 0 var(--color-shadow);
  cursor: pointer;
  transition: background .17s, color .17s, transform .18s, box-shadow .18s;
}
.cta-primary:hover,
.cta-primary:focus,
.btn:hover,
.btn:focus {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1.5px) scale(1.01);
  box-shadow: 0 4px 16px 0 var(--color-shadow-strong);
}
.cta-primary:active,
.btn:active { transform: scale(0.98); }

/* ===================     FORMS & INPUTS    =================== */
input[type=text], select, textarea {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-darktext);
  font-size: 1rem;
  margin-bottom: 18px;
  width: 100%;
  transition: border-color .18s, box-shadow .18s;
}
input[type=text]:focus, select:focus, textarea:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 2px 8px 0 var(--color-hover);
}

/* =====================   CARDS ===================== */
.card, .feature-grid > li, .fact-grid > div, .article-grid > article {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}
.card:hover, .feature-grid > li:hover, .fact-grid > div:hover, .article-grid > article:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-2px);
}

/* FACT-HIGHLIGHTS */
.fact-highlights, .highlighted-articles {
  margin-top: 12px;
  margin-bottom: 30px;
}
.fact-highlights p {
  background: #e9f3f5;
  color: var(--color-mediumtext);
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  font-size: 1.02rem;
  font-family: var(--font-body);
}

/* ============================ FOOTER ========================== */
footer {
  background: #fff;
  box-shadow: 0 -2px 10px 0 var(--color-shadow);
  padding: 38px 0 18px 0;
  margin-top: 60px;
  font-size: .98rem;
}
footer .container {
  max-width: 1160px;
}
footer .content-wrapper {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-links, .footer-contact, .footer-social {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: var(--color-mediumtext);
  font-size: 1rem;
  transition: color .18s;
}
.footer-links a:hover, .footer-links a:focus {
  color: var(--color-secondary);
}
.footer-contact img {
  max-width: 22px;
  vertical-align: middle;
  margin-right: 6px;
  margin-top: -2px;
}
.footer-contact {
  color: var(--color-lighttext);
  gap: 8px;
  font-size: 1rem;
}
.footer-social {
  flex-direction: row;
  gap: 16px;
  margin-top: 8px;
}
.footer-social a {
  background: var(--color-accent);
  border-radius: 50%;
  padding: 6px;
  transition: background .19s;
}
.footer-social a:hover {
  background: var(--color-secondary);
}
.footer-social img {
  max-width: 22px;
}
@media (max-width: 900px) {
  footer .content-wrapper {
    flex-direction: column;
    gap: 22px;
  }
}

/* =================== TOOLTIPS & LINKS =================== */
a {
  cursor: pointer;
  transition: color .15s, background .15s;
}
a:active { color: var(--color-secondary); }
a:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ================ RESPONSIVE: TEXT/IMAGE/FLEX ================ */
.text-image-section { flex-direction: row; }
@media (max-width: 768px) {
  .text-image-section { flex-direction: column; }
}
@media (max-width: 520px) {
  .fun-facts, .footer-social { gap: 8px; }
}

/* ============ FORM BITS, FILTERS, SELECT CATEGORY ========== */
.categories-filter, .search {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
select {
  min-width: 100px;
  border: 1px solid var(--color-border);
}

/* ========== TESTIMONIAL (used for reviews etc.) ========== */
.testimonial-card {
  background: var(--color-bg-card);
  color: var(--color-primary);
  border-left: 3px solid var(--color-secondary);
  box-shadow: var(--shadow);
  font-size: 1.08rem;
  font-style: italic;
  margin: 0 0 20px 0;
  transition: box-shadow .2s;
}
.testimonial-card .author {
  font-style: normal;
  font-weight: 700;
  color: var(--color-darktext);
  margin-left: auto;
}

/* ====================  COOKIE CONSENT BANNER =================== */
.cookie-banner {
  position: fixed;
  left: 0; right: 0;
  bottom: 0;
  z-index: 220;
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 -2px 24px 0 var(--color-shadow-strong);
  padding: 18px 24px;
  display: flex;
  flex-direction: row;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  transition: transform .4s cubic-bezier(.59,.01,.44,1), opacity .22s;
}
.cookie-banner.hide {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.cookie-banner .cookie-text {
  font-size: 1rem;
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0;
}
.cookie-banner .cookie-btns {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}
.cookie-banner button {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-display);
  border: none;
  font-weight: 600;
  background: var(--color-secondary);
  color: #fff;
  cursor: pointer;
  transition: background .16s, color .16s;
  box-shadow: 0 2px 8px 0 var(--color-shadow);
}
.cookie-banner button.cookie-reject {
  background: #e3e6eb;
  color: var(--color-primary);
}
.cookie-banner button.cookie-settings {
  background: var(--color-primary);
}
.cookie-banner button:hover, .cookie-banner button:focus {
  background: var(--color-primary);
  color: #fff;
}
.cookie-banner button.cookie-reject:hover, .cookie-banner button.cookie-reject:focus {
  background: #bcd3e6;
  color: var(--color-secondary);
}
@media (max-width: 700px) {
  .cookie-banner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .cookie-banner .cookie-btns { gap: 8px; }
}
@media (max-width: 400px) {
  .cookie-banner { padding: 13px 2px; font-size: .95rem; }
  .cookie-banner button { padding: 10px 9px; }
}

/* ================ COOKIE PREFERENCE MODAL ================ */
.cookie-modal {
  position: fixed;
  z-index: 300;
  left: 0; top: 0; right:0; bottom:0;
  background: rgba(33,52,80,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .23s;
  opacity: 0;
  pointer-events: none;
}
.cookie-modal.open { opacity: 1; pointer-events: all; }
.cookie-modal .modal-content {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  padding: 38px 32px 28px 32px;
  max-width: 95vw;
  min-width: 320px;
  width: 360px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.cookie-modal .modal-close {
  background: none;
  border: none;
  color: var(--color-mediumtext);
  position: absolute;
  right: 14px; top: 8px;
  font-size: 2rem;
  cursor: pointer;
  z-index: 31;
  transition: color .2s;
}
.cookie-modal .modal-close:hover,
.cookie-modal .modal-close:focus {
  color: var(--color-secondary);
}
.cookie-modal .modal-title {
  font-size: 1.20rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-accent);
  margin-bottom: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
}
.cookie-modal .cookie-category.essential {
  font-weight: 700;
  color: var(--color-primary);
}
.cookie-modal .cookie-category .toggle {
  margin-left: auto;
  pointer-events: auto;
}
.cookie-modal .cookie-category input[type=checkbox] {
  width: 22px; height: 22px;
  accent-color: var(--color-secondary);
}
.cookie-modal .modal-actions {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}
.cookie-modal .modal-actions button {
  font-family: var(--font-display);
  font-size: 1rem;
  background: var(--color-secondary);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  border: none;
  transition: background .16s;
}
.cookie-modal .modal-actions button.cookie-cancel {
  background: #e3e6eb;
  color: var(--color-primary);
}
.cookie-modal .modal-actions button:hover, .cookie-modal .modal-actions button:focus {
  background: var(--color-primary);
  color: #fff;
}
@media (max-width: 460px) {
  .cookie-modal .modal-content { padding: 22px 5px; min-width: 90vw; }
}

/* ==================  MISCELLANEOUS UTILITIES ================== */
.gap-8  { gap: 8px;  }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-32 { gap: 32px; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }

/* Added spacing between all cards/sections */
section + section, .section + .section {
  margin-top: 32px;
}
/* All section children have spacing */
.container > .content-wrapper > * + * {
  margin-top: 16px;
}

/* =========================  MEDIA QUERIES =========================== */
@media (max-width: 650px) {
  h1 { font-size: 2rem; }
  .hero h1 { font-size: 1.45rem; }
}
@media (max-width: 540px) {
  header, footer { padding-left: 0; padding-right: 0; }
  .container { padding-right: 4px; padding-left: 4px; }
  .feature-grid > li, .fact-grid > div, .article-grid > article { padding: 14px 6px; }
}

/* ======================  PRINT OPTIMIZATION ====================== */
@media print {
  header, nav, .mobile-menu, .cookie-banner, .cookie-modal, footer { display: none !important; }
  section, .container, body { background: #fff !important; color: #111 !important; }
}