:root {
  --bg-0: #1c1e22;
  --bg-1: #23262b;
  --bg-2: #2a2e34;
  --panel: #2f343b;
  --panel-soft: #3a4048;
  --line: #585f69;
  --text: #e8ebef;
  --text-soft: #c2c8d0;
  --accent: #a9b3be;
  --accent-strong: #d4dbe2;
  --shadow: rgba(0, 0, 0, 0.35);
}

/* Base */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  --page-accent: #8da1b2;
  margin: 0;
  min-height: 100vh;
  background: #4E4E4E;
  color: var(--text);
  font-family: "Google Sans", "Noto Sans", "Segoe UI", sans-serif;
  line-height: 1.65;
}

body.page-uvod { --page-accent: #ffffff; }
body.page-cile { --page-accent: #e6a37e; }
body.page-metody { --page-accent: #FFFF00; }
body.page-vysledky { --page-accent: #a3ff73; }
body.page-zaver { --page-accent: #73DFFF; }
body.page-stazeni { --page-accent: #ffbee8; }
body.page-summary { --page-accent: #9b8de0; }

a {
  color: var(--accent-strong);
  text-underline-offset: 0.2rem;
}

a:hover,
a:focus-visible {
  color: #fff;
}

body::before {
  content: none;
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: var(--accent-strong);
  color: #111;
  padding: 0.5rem 1rem;
}

/* Layout */

.layout {
  --frame-size: 8px;
  --layout-pad-x: 1rem;
  --layout-pad-y: 1rem;
  width: min(980px, 92vw);
  margin: 2.5rem auto 4rem;
  padding: var(--layout-pad-y) var(--layout-pad-x) 1.2rem;
  border: var(--frame-size) solid var(--page-accent);
  border-radius: 0;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
}

.card {
  margin-top: 1.5rem;
  padding: 1.6rem 1.6rem 1.7rem;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.layout > .card:first-of-type {
  position: relative;
  margin-top: 0;
  padding-top: 0;
}

/* Hero */

.hero {
  position: relative;
  margin: calc(-1 * var(--layout-pad-y)) calc(-1 * var(--layout-pad-x)) 0;
  padding: 2.2rem 2rem 1.8rem;
  overflow: hidden;
  border: none;
  border-radius: 0;
  background: #ffffff;
  color: #4E4E4E;
}

.eyebrow {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow,
.hero h1,
.hero .intro {
  color: #4E4E4E;
}

h1 {
  margin: 0.7rem 0 1rem;
  font-size: clamp(1.8rem, 2.8vw, 2.8rem);
  line-height: 1.15;
}

.intro {
  color: var(--text-soft);
  max-width: 70ch;
}

.hero-grid {
  position: absolute;
  inset: 0;
  display: none;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  opacity: 0.16;
  pointer-events: none;
}

.hero-grid span {
  border: 1px solid rgba(78, 78, 78, 0.22);
}

/* Section headings */

body.page-uvod .layout > .card:first-of-type::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--layout-pad-y));
  left: 50%;
  width: 100vw;
  height: 4px;
  background: #4E4E4E;
  transform: translateX(-50%);
  z-index: 1;
}

.card h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
}

.card:first-of-type > h2:first-child {
  position: relative;
  display: inline-block;
  margin: calc(-1 * var(--layout-pad-y)) 0 1.05rem calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 1.6rem));
  padding: 0.46rem 2.1rem 0.54rem 0.85rem;
  background: var(--page-accent);
  clip-path: polygon(0 0, 100% 0, calc(100% - 19px) 100%, 0 100%);
  transform: translateZ(0);
  color: #4E4E4E;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.015em;
  line-height: 1.08;
  text-transform: uppercase;
}

body.page-uvod .card:first-of-type > h2:first-child {
  margin-top: calc(-1 * var(--layout-pad-y) + 1rem);
}


.card h3 {
  margin: 1.4rem 0 0.5rem;
  color: var(--accent-strong);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.section-divider {
  margin: 1.5rem calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 1.6rem)) 0;
  height: var(--frame-size);
  background: var(--page-accent);
}

.section-divider + h3.map-showcase-title {
  margin-top: 0;
  margin-bottom: 0.7rem;
}

.card h3.map-showcase-title {
  display: inline-block;
  position: relative;
  margin: 0.7rem 0 0.7rem calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 1.6rem));
  padding: 0.35rem 1.8rem 0.42rem 0.65rem;
  overflow: hidden;
  background: var(--page-accent);
  color: #4E4E4E;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
  text-transform: uppercase;
}

.card h3.map-showcase-title::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 19px;
  height: 100%;
  background: #4E4E4E;
  clip-path: polygon(100% 0, 0 100%, 100% 100%);
  transform: translateZ(0);
}

.card .section-divider + h3.map-showcase-title {
  margin-top: 0;
}

/* Tables and figures */

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.7rem 0 0.2rem;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 0.55rem 0.6rem;
  vertical-align: top;
}

.data-table th {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-strong);
  text-align: left;
}

.fig {
  margin: 1.2rem 0 0.4rem;
  text-align: center;
}

.fig img {
  display: block;
  max-width: 100%;
  margin: 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0;
}

figcaption {
  margin-top: 0.45rem;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-style: italic;
  text-align: center;
}

.map-fig {
  margin: 0.7rem 0 0.2rem;
  text-align: center;
}

.map-fig img {
  display: block;
  width: min(100%, 860px);
  margin: 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0;
}

.map-showcase-list {
  display: block;
  margin-top: 0.8rem;
  padding-left: 0;
  list-style: none;
}

.map-showcase-item {
  margin: 0 0 3.5rem;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.map-showcase-item strong {
  color: var(--accent-strong);
}

.map-showcase-item strong::after {
  content: none;
}

.map-showcase-item .map-fig {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

/* Thesis info grid */

.meta-grid {
  display: grid;
  margin: 0;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.2rem 0.2rem;
}

.meta-grid div {
  overflow: hidden;
  padding: 0.8rem 3.2rem 0.8rem 1.6rem;
  border: none;
  border-radius: 0;
  clip-path: polygon(44px 0, 100% 0, calc(100% - 44px) 100%, 0 100%);
  transform: translateZ(0);
  cursor: default;
  background: var(--info-bg, #ffffff);
  color: var(--info-text, #4E4E4E);
  transition: transform 0.15s ease, filter 0.15s ease;
}

.meta-grid div::before {
  content: "";
  float: left;
  width: 44px;
  height: 6rem;
  shape-outside: polygon(0 0, 100% 0, 0 100%);
}

.meta-grid .sl {
  float: left;
  width: 44px;
  height: 6rem;
  shape-outside: polygon(0 0, 100% 0, 0 100%);
}

.meta-grid div:hover {
  position: relative;
  transform: scale(1.04);
  filter: brightness(1.08);
  z-index: 1;
}

.meta-grid div:nth-child(1) {
  --info-bg: #ffffff;
  --info-border: #b7afac;
  --info-text: #4E4E4E;
}

.meta-grid div:nth-child(2) {
  --info-bg: #e6a37e;
  --info-border: #ca8b67;
  --info-text: #4E4E4E;
}

.meta-grid div:nth-child(3) {
  --info-bg: #FFFF00;
  --info-border: #cccc00;
  --info-text: #4E4E4E;
}

.meta-grid div:nth-child(4) {
  --info-bg: #a3ff73;
  --info-border: #85e055;
  --info-text: #4E4E4E;
}

.meta-grid div:nth-child(5) {
  --info-bg: #73DFFF;
  --info-border: #50c8ef;
  --info-text: #4E4E4E;
}

.meta-grid div:nth-child(6) {
  --info-bg: #ffbee8;
  --info-border: #e89acc;
  --info-text: #4E4E4E;
}

.meta-grid dd {
  font-size: 0.98rem;
}

/* Kontaktní sekce — centrovaný text */
.contact-center {
  text-align: center;
}

.contact-center p {
  margin: 0.4rem 0;
}

dt {
  color: inherit;
  font-weight: 600;
  margin-bottom: 0.3rem;
  text-align: right;
}

dd {
  color: inherit;
  margin: 0;
}

/* Common content */

.plain-list,
.file-links {
  margin: 0;
  padding-left: 1.25rem;
}

li {
  margin: 0.35rem 0;
}

.note {
  color: var(--text-soft);
  margin-top: 0.9rem;
}

.card p,
.card li {
  text-align: justify;
  text-justify: inter-word;
}

/* Footer */

.footer {
  margin: 0 calc(-1 * var(--layout-pad-x)) -1.2rem 0;
  border: none;
  background: transparent;
  line-height: 0;
  padding: 0;
  text-align: right;
}

.footer p {
  position: relative;
  display: block;
  width: fit-content;
  margin: 0;
  margin-left: auto;
  padding: 0.4rem 1.6rem 0.4rem 1.4rem;
  background: var(--page-accent);
  color: #4E4E4E;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  line-height: 1.6;
  text-transform: uppercase;
  transform: translateY(1px);
}

.footer p::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -14px;
  width: 14px;
  background: var(--page-accent);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  transform: translateZ(0);
}

.footer p a {
  color: #4E4E4E;
  text-decoration: underline;
}

.footer p a:hover {
  color: #c0c0c0;
}

.mobile-break {
  display: none;
}

.desktop-sep {
  display: inline;
}

/* Navigation */

.top-menu {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: transparent;
  backdrop-filter: none;
  border-bottom: none;
}

.top-menu nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0;
  padding: 0;
  gap: 0;
  list-style: none;
}

.top-menu li {
  margin: 0;
  margin-left: -19px;
}

.top-menu li:first-child {
  margin-left: 0;
}

.top-menu a {
  display: inline-block;
  position: relative;
  overflow: hidden;
  transform-origin: center;
  padding: 0.78rem 2.2rem 0.78rem 1.4rem;
  border: 1px solid var(--line);
  clip-path: polygon(19px 0, 100% 0, calc(100% - 19px) 100%, 0 100%);
  transform: translateZ(0);
  text-decoration: none;
  background: linear-gradient(160deg, var(--panel), var(--panel-soft));
  color: var(--text);
  font-size: 1.12rem;
  font-weight: 500;
  text-transform: uppercase;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  transition: filter 0.15s ease, transform 0.15s ease;
}

.top-menu a::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38px;
  height: 100%;
  clip-path: polygon(19px 0, 100% 0, calc(100% - 19px) 100%, 0 100%);
  background: var(--menu-strip, #f0b08a);
}

.top-menu a:hover,
.top-menu a:focus-visible {
  z-index: 10;
  color: #fff;
  filter: brightness(1.15);
  transform: translateY(-1px) scale(1.04);
}

.top-menu a.active {
  background: linear-gradient(160deg, #48515d, #596473);
  border-color: #8f9bad;
  color: #fff;
}

.top-menu li:nth-child(1) a { --menu-strip: #ffffff; }
.top-menu li:nth-child(2) a { --menu-strip: #e6a37e; }
.top-menu li:nth-child(3) a { --menu-strip: #FFFF00; }
.top-menu li:nth-child(4) a { --menu-strip: #a3ff73; }
.top-menu li:nth-child(5) a { --menu-strip: #73DFFF; }
.top-menu li:nth-child(6) a { --menu-strip: #ffbee8; }
.top-menu li:nth-child(7) a { --menu-strip: #9b8de0; }

/* Hamburger button — skryté na desktopu */
.nav-toggle {
  display: none;
}


@media (max-width: 880px) {
  .top-menu nav ul {
    gap: 0;
  }

  .top-menu li {
    margin-left: -10px;
  }

  .top-menu li:first-child {
    margin-left: 0;
  }

  .layout {
    --layout-pad-x: 0.8rem;
    --layout-pad-y: 0.8rem;
    width: min(980px, 95vw);
    margin: 1.2rem auto 3rem;
    padding: var(--layout-pad-y) var(--layout-pad-x);
  }

  .card:first-of-type > h2:first-child {
    margin-left: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 1.2rem));
  }

  .hero {
    padding: 2.1rem 1.2rem;
  }

  .card {
    padding: 1.2rem;
  }

  .layout > .card:first-of-type {
    padding-top: 0;
  }

  body.page-uvod .layout > .card:first-of-type::before {
    left: 50%;
    right: auto;
    width: 100vw;
    transform: translateX(-50%);
    display: none;
  }

  .card h3.map-showcase-title {
    margin-left: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 1.2rem));
  }

}

@media (max-width: 640px) {
  .top-menu {
    position: relative;
    padding: 0;
    display: flex;
    align-items: center;
    min-height: 3rem;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    position: relative;
    z-index: 200;
    margin: 0.45rem 0.6rem;
    padding: 0.45rem 1.2rem 0.45rem 0.55rem;
    border: none;
    background: #ffffff;
    cursor: pointer;
    clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #4E4E4E;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  /* X při otevření */
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .top-menu nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--panel);
    box-shadow: 0 6px 18px rgba(0,0,0,0.35);
  }

  .top-menu nav.nav-open {
    display: block;
  }

  .top-menu nav ul {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0.4rem 0.4rem 0.5rem;
    list-style: none;
    margin: 0;
  }

  .top-menu li,
  .top-menu li:first-child {
    margin-left: 0;
  }

  .top-menu a {
    display: block;
    width: 100%;
    padding: 0.68rem 1.2rem 0.68rem 0.95rem;
    font-size: 0.92rem;
    text-align: left;
  }

  .top-menu a::after {
    width: 26px;
  }

  .layout {
    --frame-size: 6px;
    --layout-pad-x: 0.65rem;
    --layout-pad-y: 0.65rem;
    width: min(100vw - 0.7rem, 980px);
    margin: 0.7rem auto 2rem;
    padding: var(--layout-pad-y) var(--layout-pad-x) 0.8rem;
  }

  .hero {
    padding: 1.45rem 1rem 1.2rem;
  }

  .eyebrow {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  h1 {
    margin: 0.55rem 0 0;
    font-size: clamp(1.45rem, 8vw, 2rem);
    line-height: 1.08;
  }

  .card {
    margin-top: 1rem;
    padding: 1rem 0.85rem 1.1rem;
  }

  .card h2 {
    font-size: clamp(1.05rem, 5.4vw, 1.35rem);
  }

  .card:first-of-type > h2:first-child {
    display: block;
    width: fit-content;
    max-width: calc(100% + var(--layout-pad-x) + var(--frame-size) + 1.1rem);
    margin-left: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 0.85rem));
    padding: 0.42rem 1.55rem 0.48rem 0.7rem;
    font-size: clamp(1.15rem, 7vw, 1.6rem);
    line-height: 1.05;
    clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
  }

  body.page-uvod .card:first-of-type > h2:first-child {
    margin-top: calc(-1 * var(--layout-pad-y) + 0.7rem);
  }

  .section-divider {
    margin-left: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 0.85rem));
    margin-right: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 0.85rem));
  }

  .card h3.map-showcase-title {
    display: block;
    width: fit-content;
    max-width: calc(100% + var(--layout-pad-x) + var(--frame-size) + 1.1rem);
    margin-left: calc(-1 * (var(--layout-pad-x) + var(--frame-size) + 0.85rem));
    padding: 0.34rem 1.2rem 0.38rem 0.55rem;
    font-size: clamp(0.96rem, 5vw, 1.15rem);
    line-height: 1.08;
  }

  .card h3.map-showcase-title::after {
    width: 14px;
  }

  .meta-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.7rem;
  }

  .meta-grid div {
    padding: 0.72rem 1.05rem 0.72rem 1.1rem;
  }

  .meta-grid dd {
    font-size: 0.86rem;
  }

  .data-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .fig,
  .map-fig {
    margin-left: -0.15rem;
    margin-right: -0.15rem;
  }

  figcaption {
    font-size: 0.76rem;
  }

  .plain-list,
  .file-links {
    padding-left: 1rem;
  }

  .footer {
    margin-top: -0.2rem;
    margin-bottom: -1rem;
    margin-right: calc(-1 * var(--layout-pad-x) - 0.3rem);
  }

  .footer p {
    max-width: calc(100% - 0.4rem);
    padding: 0.38rem 0.85rem 0.38rem 1rem;
    font-size: 0.62rem;
    letter-spacing: 0.04em;
    line-height: 1.45;
    text-align: left;
    white-space: normal;
    word-break: break-word;
  }

  .footer p::before {
    left: -10px;
    width: 10px;
  }

  .mobile-break {
    display: block;
  }

  .desktop-sep {
    display: none;
  }
}

@media (max-width: 420px) {
  .layout {
    width: min(100vw - 0.45rem, 980px);
    margin-top: 0.45rem;
  }

  .card:first-of-type > h2:first-child,
  .card h3.map-showcase-title {
    max-width: calc(100% + var(--layout-pad-x) + var(--frame-size) + 0.7rem);
  }
}