:root {
  --white: #FFFFFF;
  --primary: #0299D2;
  --accent: #FFDD42;
  --background: #FBFBFB;
  --secondary-text: #717579;
  --text: #000;

  --sidebar-width: 320px;
  --content-max-width: 1460px;
  --radius-xl: 22px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 10px 35px rgba(0, 0, 0, 0.045);
  --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.09);
  --transition: 0.25s ease;
}

/* Base */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Roboto", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  color: var(--text);
  background: var(--background);
}

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

img,
svg {
  display: block;
}

img {
  max-width: 100%;
  height: auto;
}

button,
input {
  font-family: inherit;
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* Layout z sidebarem */

body.has-sidebar .portal-page {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
}

body.no-sidebar .site-sidebar-nav {
  display: none;
}

body.no-sidebar .portal-page {
  margin-left: 0;
  width: 100%;
}

.portal-page {
  min-height: 100vh;
  padding: 34px 56px 52px;
  transition: margin-left var(--transition), width var(--transition);
}


/* Sidebar */

.site-sidebar-nav {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 100;
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--white);
  box-shadow: 12px 0 35px rgba(0, 0, 0, 0.035);
}

.site-sidebar-nav__inner {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 34px 28px 34px;
}

.site-sidebar-nav__logo {
  margin-bottom: 58px;
}

.site-sidebar-nav__logo a {
  display: inline-flex;
  align-items: center;
  max-width: 160px;
  transition: transform var(--transition), opacity var(--transition);
}

.site-sidebar-nav__logo a:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.site-sidebar-nav__logo img {
  width: 150px;
  height: auto;
}

.site-sidebar-nav__menu {
  flex: 1;
}

.site-sidebar-nav__label {
  margin: 0 0 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--secondary-text);
}

.site-sidebar-nav__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-sidebar-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 58px;
  padding: 16px 20px;
  border-radius: 18px;
  color: var(--secondary-text);
  font-weight: 700;
  overflow: hidden;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.site-sidebar-nav__link::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(2, 153, 210, 0.12), rgba(2, 153, 210, 0));
  opacity: 0;
  transition: opacity var(--transition);
}

.site-sidebar-nav__link > * {
  position: relative;
  z-index: 1;
}

.site-sidebar-nav__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 28px;
  color: currentColor;
  transition: transform var(--transition);
}

.site-sidebar-nav__text {
  flex: 1;
}

.site-sidebar-nav__arrow {
  margin-left: auto;
  color: currentColor;
  transition: transform var(--transition);
}

.site-sidebar-nav__link:hover {
  color: var(--primary);
  background: rgba(2, 153, 210, 0.06);
  transform: translateX(4px);
}

.site-sidebar-nav__link:hover::before {
  opacity: 1;
}

.site-sidebar-nav__link:hover .site-sidebar-nav__icon {
  transform: scale(1.08);
}

.site-sidebar-nav__link:hover .site-sidebar-nav__arrow {
  transform: translateX(3px);
}

.site-sidebar-nav__item--active .site-sidebar-nav__link {
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 12px 25px rgba(2, 153, 210, 0.24);
}

.site-sidebar-nav__item--active .site-sidebar-nav__link:hover {
  color: var(--white);
  background: #018fc5;
  transform: translateX(4px) translateY(-1px);
}

.site-sidebar-nav__copyright {
  margin-top: 40px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--secondary-text);
}

.site-sidebar-nav__copyright strong {
  color: var(--text);
  font-weight: 700;
}

/* Mobile header / navigation toggle */

.mobile-header {
  display: none;
}

.mobile-nav-toggle {
  position: relative;
  display: inline-flex;
  flex: 0 0 52px;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 0;
  border-radius: 16px;
  background: var(--primary);
  box-shadow: 0 12px 28px rgba(2, 153, 210, 0.24);
  cursor: pointer;
}

.mobile-nav-toggle__line {
  position: absolute;
  left: 15px;
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: var(--white);
  transition:
    transform var(--transition),
    opacity var(--transition),
    top var(--transition);
}

.mobile-nav-toggle__line:nth-child(1) {
  top: 17px;
}

.mobile-nav-toggle__line:nth-child(2) {
  top: 25px;
}

.mobile-nav-toggle__line:nth-child(3) {
  top: 33px;
}

.mobile-nav-toggle.is-active .mobile-nav-toggle__line:nth-child(1) {
  top: 25px;
  transform: rotate(45deg);
}

.mobile-nav-toggle.is-active .mobile-nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.is-active .mobile-nav-toggle__line:nth-child(3) {
  top: 25px;
  transform: rotate(-45deg);
}

.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 180;
  background: rgba(0, 0, 0, 0.38);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition),
    visibility var(--transition);
}

.mobile-nav-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* Hero */

.portal-hero {
  max-width: var(--content-max-width);
  margin: 0 auto 30px;
}

.portal-hero__image {
  position: relative;
  width: 100%;
  height: 306px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  line-height: 0;
  background: var(--white);
}

.portal-hero__image img {
  position: absolute;
  top: 0;
  left: -1px;
  width: calc(100% + 2px);
  height: calc(100% + 2px);
  max-width: none;
  display: block;
  object-fit: cover;
  object-position: center;
  transform: none;
  transition: none;
}

.portal-hero__image:hover img {
  transform: none;
}

/* Listing */

.portal-listing {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.portal-listing__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.portal-listing__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 52px;
}

.portal-listing__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 98px;
}


/* Search */

.portal-search {
  position: relative;
  width: 315px;
  max-width: 100%;
}

.portal-search__input {
  width: 100%;
  height: 58px;
  padding: 0 66px 0 22px;
  border: 1px solid rgba(113, 117, 121, 0.08);
  border-radius: 18px;
  background: var(--white);
  color: var(--text);
  font-size: 14px;
  outline: none;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.025);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.portal-search__input::placeholder {
  color: var(--secondary-text);
}

.portal-search__input:focus {
  border-color: rgba(2, 153, 210, 0.45);
  box-shadow: 0 0 0 4px rgba(2, 153, 210, 0.08), 0 12px 30px rgba(0, 0, 0, 0.045);
  transform: translateY(-1px);
}

.portal-search__button {
  position: absolute;
  top: 50%;
  right: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--secondary-text);
  cursor: pointer;
  transform: translateY(-50%);
  transition: color var(--transition), transform var(--transition);
}

.portal-search__button:hover {
  color: var(--primary);
  transform: translateY(-50%) scale(1.08);
}


/* Filter custom select */

.portal-filter {
  position: relative;
  z-index: 10;
}

.portal-filter__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 245px;
  height: 58px;
  padding: 0 34px;
  border: 1px solid var(--accent);
  border-radius: 18px;
  background: var(--white);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.015);
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.portal-filter__button:hover {
  color: var(--text);
  background: var(--accent);
  box-shadow: 0 12px 28px rgba(255, 221, 66, 0.28);
  transform: translateY(-2px);
}

.portal-filter__dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 245px;
  padding: 10px;
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  pointer-events: none;
  transition:
    opacity var(--transition),
    visibility var(--transition),
    transform var(--transition);
}

.portal-filter:hover .portal-filter__dropdown,
.portal-filter:focus-within .portal-filter__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.portal-filter__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.portal-filter__option {
  display: block;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--secondary-text);
  font-size: 14px;
  font-weight: 600;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition);
}

.portal-filter__option:hover {
  color: var(--primary);
  background: rgba(2, 153, 210, 0.07);
  transform: translateX(3px);
}

.portal-filter__option--active,
.portal-filter__option[aria-current="true"] {
  color: var(--text);
  background: var(--accent);
}

.portal-filter__option--active:hover,
.portal-filter__option[aria-current="true"]:hover {
  color: var(--text);
  background: var(--accent);
  transform: none;
}

.portal-filter--active .portal-filter__button {
  color: var(--text);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 12px 28px rgba(255, 221, 66, 0.22);
}

.portal-filter--active .portal-filter__button:hover {
  color: var(--text);
  background: var(--accent);
  border-color: var(--accent);
}

.portal-filter.is-active .portal-filter__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}


/* Cards */

.portal-card {
  position: relative;
  min-height: 232px;
  padding: 40px 40px 34px;
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.portal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 16% 18%, rgba(2, 153, 210, 0.08), transparent 32%),
    linear-gradient(135deg, rgba(255, 221, 66, 0.07), transparent 45%);
  opacity: 0;
  transition: opacity var(--transition);
}

.portal-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.portal-card:hover::before {
  opacity: 1;
}

.portal-card__content,
.portal-card__tags {
  position: relative;
  z-index: 1;
}

.portal-card__content {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 34px;
}

.portal-card__icon-link {
  flex: 0 0 auto;
}

.portal-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.075);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.portal-card__icon img {
  max-width: 42px;
  max-height: 42px;
  object-fit: contain;
  width: auto;
  height: 100%;
}

.portal-card__icon-link:hover .portal-card__icon,
.portal-card:hover .portal-card__icon {
  transform: scale(1.06) rotate(-2deg);
  box-shadow: 0 12px 32px rgba(2, 153, 210, 0.18);
}

.portal-card__title {
  margin: 0;
  font-size: 25px;
  line-height: 1.13;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.portal-card__title a {
  color: var(--text);
  transition: color var(--transition);
}

.portal-card__title a:hover,
.portal-card:hover .portal-card__title a {
  color: var(--primary);
}

.portal-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.portal-card__tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  min-height: 27px;
  padding: 4px 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--primary);
  background: var(--white);
  font-size: 14px;
  line-height: 1;
  font-weight: 700;
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.portal-card__tag:hover {
  color: var(--text);
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(255, 221, 66, 0.22);
}


/* Bottom / pagination */

.portal-results-count {
  color: var(--secondary-text);
  font-size: 14px;
  font-weight: 700;
}

.portal-pagination {
  display: flex;
  align-items: center;
  gap: 16px;
}

.portal-pagination__list {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  min-height: 40px;
  margin: 0;
  padding: 0 1px;
  list-style: none;
  border: 1px solid var(--primary);
  border-radius: 999px;
  background: var(--white);
}

.portal-pagination__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition);
}

.portal-pagination__link:hover {
  background: rgba(2, 153, 210, 0.08);
  transform: translateY(-1px);
}

.portal-pagination__item--active .portal-pagination__link {
  color: var(--white);
  background: var(--primary);
}

.portal-pagination__next {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 40px;
  padding: 0 22px;
  border: 1px solid var(--primary);
  border-radius: 999px;
  color: var(--primary);
  background: var(--white);
  font-size: 14px;
  font-weight: 700;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.portal-pagination__next svg {
  transition: transform var(--transition);
}

.portal-pagination__next:hover {
  color: var(--white);
  background: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(2, 153, 210, 0.18);
}

.portal-pagination__next:hover svg {
  transform: translateX(4px);
}


/* Additional content */

/* Additional notice variants */

.additional-content {
  position: relative;
  padding: 22px 26px 22px 62px;
  border-radius: 22px;
  background: var(--white);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  box-shadow: var(--shadow);
  max-width: var(--content-max-width);
  margin: 0 auto 60px auto;
}

.additional-content::before {
  content: "!";
  position: absolute;
  top: 22px;
  left: 24px;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
}

.additional-content > *:first-child {
  margin-top: 0;
}

.additional-content > *:last-child {
  margin-bottom: 0;
}

.additional-content a {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Informacja */

.additional-content--info {
  border: 1px solid rgba(2, 153, 210, 0.22);
  background: rgba(2, 153, 210, 0.07);
}

.additional-content--info::before {
  content: "i";
  background: var(--primary);
  color: var(--white);
}

.additional-content--info a {
  color: var(--primary);
}

/* Ostrzeżenie */

.additional-content--warning {
  border: 1px solid rgba(255, 221, 66, 0.65);
  background: rgba(255, 221, 66, 0.2);
}

.additional-content--warning::before {
  content: "!";
  background: var(--accent);
  color: var(--text);
}

.additional-content--warning a {
  color: var(--text);
}

/* Awaria / problem */

.additional-content--error {
  border: 1px solid rgba(220, 53, 69, 0.22);
  background: rgba(220, 53, 69, 0.08);
}

.additional-content--error::before {
  content: "!";
  background: #dc3545;
  color: var(--white);
}

.additional-content--error a {
  color: #dc3545;
}

/* Sukces */

.additional-content--success {
  border: 1px solid rgba(25, 135, 84, 0.22);
  background: rgba(25, 135, 84, 0.08);
}

.additional-content--success::before {
  content: "✓";
  background: #198754;
  color: var(--white);
}

/* Mobile */

@media (max-width: 767px) {
  .additional-content {
    padding: 20px 20px 20px 56px;
    border-radius: 18px;
    font-size: 14px;
  }

  .additional-content::before {
    top: 20px;
    left: 20px;
    width: 22px;
    height: 22px;
    font-size: 13px;
  }
}

.additional-content:empty {
  display: none;
}

.additional-content p {
  margin: 0 0 14px;
}

.additional-content p:last-child {
  margin-bottom: 0;
}

.additional-content a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition), text-decoration-color var(--transition);
}

.additional-content a:hover {
  color: var(--text);
  text-decoration-color: var(--accent);
}

.additional-content strong,
.additional-content b {
  font-weight: 700;
}

.additional-content ul,
.additional-content ol {
  margin: 14px 0 0;
  padding-left: 20px;
}

.additional-content li {
  margin-bottom: 6px;
}

.additional-content li:last-child {
  margin-bottom: 0;
}

@media (max-width: 767px) {
  .additional-content::before {
    top: 50%;
    left: 24px;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    font-size: 21px;
  }
}

@media (max-width: 480px) {
  .additional-content::before {
    left: 18px;
  }
}

/* Corner logo */

.corner-logo {
  width: clamp(260px, 26vw, 505px);
  aspect-ratio: 505 / 232;
  text-align: right;
  padding: clamp(22px, 2.8vw, 40px) clamp(28px, 4vw, 70px);
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  background-image: url(../img/corner_bg.svg);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  pointer-events: none;
}

.corner-logo a {
  display: block;
  width: clamp(105px, 8vw, 150px);
  margin-left: auto;
  margin-right: 0;
  pointer-events: auto;
}

.corner-logo img {
  width: 100%;
  height: auto;
}


/* Focus */

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(2, 153, 210, 0.25);
  outline-offset: 3px;
}


/* Responsive */

@media (max-width: 1500px) {
  :root {
    --sidebar-width: 300px;
  }

  .portal-page {
    padding: 32px 48px 48px;
  }

  .portal-listing__grid {
    gap: 42px;
  }

  .portal-card {
    padding: 36px 36px 32px;
  }

  .portal-card__title {
    font-size: 23px;
  }
}

@media (max-width: 1280px) {
  .portal-listing__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portal-hero__image img {
    height: 270px;
  }
}

@media (max-width: 991px) {
  .mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 220;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    padding: 12px 18px;
    background: var(--white);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
  }

  .mobile-header__logo {
    display: inline-flex;
    align-items: center;
    max-width: 132px;
  }

  .mobile-header__logo img {
    width: 132px;
    height: auto;
  }

  body.has-sidebar .site-sidebar-nav,
  .site-sidebar-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: auto;
    bottom: 0;
    width: min(86vw, 340px);
    min-height: 100vh;
    z-index: 200;
    transform: translateX(-105%);
    transition: transform var(--transition), box-shadow var(--transition);
  }

  body.mobile-nav-open .site-sidebar-nav {
    transform: translateX(0);
    box-shadow: 18px 0 45px rgba(0, 0, 0, 0.16);
  }

  .site-sidebar-nav__inner,
  body.has-sidebar .site-sidebar-nav__inner {
    min-height: 100vh;
    padding: 100px 22px 28px;
  }

  .site-sidebar-nav__logo,
  body.has-sidebar .site-sidebar-nav__logo {
    display: none;
  }

  .site-sidebar-nav__menu,
  body.has-sidebar .site-sidebar-nav__menu {
    flex: 1;
  }

  .site-sidebar-nav__list,
  body.has-sidebar .site-sidebar-nav__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 12px;
  }

  .site-sidebar-nav__link,
  body.has-sidebar .site-sidebar-nav__link {
    min-height: 56px;
  }

  .site-sidebar-nav__copyright,
  body.has-sidebar .site-sidebar-nav__copyright {
    display: block;
  }

  body.has-sidebar .portal-page,
  .portal-page {
    margin-left: 0;
    width: 100%;
    padding: 100px 24px 42px;
  }

  body.no-sidebar .site-sidebar-nav,
  body.no-sidebar .mobile-header,
  body.no-sidebar .mobile-nav-overlay {
    display: none;
  }

  .mobile-nav-overlay {
    display: block;
  }

  body.mobile-nav-open {
    overflow: hidden;
  }

  .portal-listing__top {
    align-items: stretch;
    flex-direction: column;
  }

  .portal-search,
  .portal-filter,
  .portal-filter__button {
    width: 100%;
  }

  .portal-filter__dropdown {
    left: 0;
    right: auto;
    width: 100%;
  }

  .portal-listing__bottom {
    align-items: flex-start;
    flex-direction: column;
    margin-top: 60px;
  }
}

@media (max-width: 767px) {
  .portal-page {
    padding: 88px 16px 36px;
  }

  .mobile-header {
    min-height: 70px;
    padding: 11px 16px;
  }

  .mobile-header__logo {
    max-width: 100px;
  }

  .mobile-header__logo img {
    width: 100px;
  }

  .mobile-nav-toggle {
    flex-basis: 48px;
    width: 48px;
    height: 48px;
    border-radius: 15px;
  }

  .mobile-nav-toggle__line {
    left: 14px;
    width: 20px;
  }

  .mobile-nav-toggle__line:nth-child(1) {
    top: 16px;
  }

  .mobile-nav-toggle__line:nth-child(2) {
    top: 24px;
  }

  .mobile-nav-toggle__line:nth-child(3) {
    top: 32px;
  }

  .mobile-nav-toggle.is-active .mobile-nav-toggle__line:nth-child(1),
  .mobile-nav-toggle.is-active .mobile-nav-toggle__line:nth-child(3) {
    top: 24px;
  }

  .corner-logo {
    width: 260px;
    padding: 20px 24px;
  }

  .corner-logo a {
    width: 92px;
  }

  .portal-hero {
    margin-bottom: 22px;
  }

  .portal-hero__image {
    height: 190px;
    border-radius: 18px;
  }

  .portal-hero__image img {
    height: calc(100% + 2px);
  }

  .portal-listing__grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .portal-card {
    min-height: auto;
    padding: 28px 24px;
  }

  .portal-card__content {
    gap: 20px;
    margin-bottom: 26px;
  }

  .portal-card__icon {
    width: 68px;
    height: 68px;
  }

  .portal-card__icon img {
    max-width: 36px;
    max-height: 36px;
  }

  .portal-card__title {
    font-size: 22px;
  }

  .portal-card__tag {
    min-width: auto;
    padding-inline: 14px;
  }

  .portal-pagination {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
  }

  .portal-pagination__list {
    flex: 1;
    justify-content: center;
  }

  .portal-pagination__next {
    flex: 0 0 auto;
    padding-inline: 16px;
  }
}

@media (max-width: 480px) {
  .site-sidebar-nav__inner {
    padding-inline: 16px;
  }

  .site-sidebar-nav__list {
    gap: 10px;
  }

  .site-sidebar-nav__link {
    width: 100%;
  }

  .mobile-header__logo {
    max-width: 102px;
  }

  .mobile-header__logo img {
    width: 102px;
  }

  .portal-card__content {
    align-items: flex-start;
    flex-direction: column;
  }

  .portal-pagination {
    align-items: stretch;
    flex-direction: column;
  }

  .portal-pagination__next {
    width: 100%;
  }
}

/* 404 */

.error-page {
  width: 100%;
  min-height: 100vh;
  padding: 80px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-page__inner {
  width: 100%;
  max-width: 760px;
  padding: 70px 60px;
  border-radius: 34px;
  background: var(--white);
  text-align: center;
  box-shadow: var(--shadow-hover);
}

.error-page__code {
  margin-bottom: 20px;
  color: var(--accent);
  font-size: clamp(86px, 12vw, 170px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.error-page__title {
  margin: 0 0 18px;
  color: var(--text);
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.error-page__text {
  max-width: 520px;
  margin: 0 auto 34px;
  color: var(--secondary-text);
  font-size: 17px;
  line-height: 1.7;
}

.error-page__text p {
  margin: 0;
}

.error-page__actions {
  display: flex;
  justify-content: center;
}

.error-page__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 34px;
  border: 1px solid var(--accent);
  border-radius: 18px;
  background: var(--accent);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 12px 28px rgba(255, 221, 66, 0.28);
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.error-page__button:hover {
  color: var(--primary);
  background: var(--white);
  border-color: var(--accent);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
}

@media (max-width: 991px) {
  .error-page {
    min-height: calc(100vh - var(--mobile-header-height));
    padding: 40px 18px;
  }

  .error-page__inner {
    padding: 48px 26px;
    border-radius: 26px;
  }

  .error-page__text {
    font-size: 15px;
  }

  .error-page__button {
    width: 100%;
  }
}

/* Single fallback */

.single-entry {
  width: 100%;
  min-height: 100vh;
  padding: 80px 40px;
}

.single-entry__inner {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 64px;
  border-radius: 34px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.single-entry__header {
  margin-bottom: 34px;
}

.single-entry__title {
  margin: 0;
  color: var(--text);
  font-size: clamp(34px, 5vw, 68px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.single-entry__meta {
  margin-top: 16px;
  color: var(--secondary-text);
  font-size: 14px;
  font-weight: 600;
}

.single-entry__thumbnail {
  margin-bottom: 34px;
  overflow: hidden;
  border-radius: 26px;
}

.single-entry__thumbnail img {
  display: block;
  width: 100%;
  height: auto;
}

.single-entry__content {
  color: var(--text);
  font-size: 17px;
  line-height: 1.75;
}

.single-entry__content > *:first-child {
  margin-top: 0;
}

.single-entry__content > *:last-child {
  margin-bottom: 0;
}

.single-entry__content h2,
.single-entry__content h3,
.single-entry__content h4 {
  margin-top: 1.8em;
  margin-bottom: 0.7em;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.single-entry__content h2 {
  font-size: 34px;
}

.single-entry__content h3 {
  font-size: 26px;
}

.single-entry__content h4 {
  font-size: 21px;
}

.single-entry__content p {
  margin: 0 0 1.2em;
}

.single-entry__content ul,
.single-entry__content ol {
  margin: 0 0 1.4em;
  padding-left: 1.4em;
}

.single-entry__content li {
  margin-bottom: 0.45em;
}

.single-entry__content a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.single-entry__content blockquote {
  margin: 32px 0;
  padding: 24px 28px;
  border-left: 4px solid var(--accent);
  border-radius: 0 18px 18px 0;
  background: rgba(255, 221, 66, 0.16);
  color: var(--text);
  font-size: 20px;
  line-height: 1.55;
}

.single-entry__content img {
  max-width: 100%;
  height: auto;
  border-radius: 18px;
}

.single-entry__pages {
  margin-top: 34px;
  color: var(--secondary-text);
  font-weight: 700;
}

.single-entry__actions {
  margin-top: 42px;
}

.single-entry__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 34px;
  border: 1px solid var(--accent);
  border-radius: 18px;
  background: var(--accent);
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 12px 28px rgba(255, 221, 66, 0.28);
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.single-entry__button:hover {
  color: var(--primary);
  background: var(--white);
  border-color: var(--accent);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
}

@media (max-width: 991px) {
  .single-entry {
    min-height: calc(100vh - var(--mobile-header-height));
    padding: 40px 18px;
  }

  .single-entry__inner {
    padding: 36px 24px;
    border-radius: 26px;
  }

  .single-entry__header {
    margin-bottom: 26px;
  }

  .single-entry__thumbnail {
    margin-bottom: 26px;
    border-radius: 20px;
  }

  .single-entry__content {
    font-size: 15px;
  }

  .single-entry__content h2 {
    font-size: 27px;
  }

  .single-entry__content h3 {
    font-size: 22px;
  }

  .single-entry__content h4 {
    font-size: 18px;
  }

  .single-entry__content blockquote {
    padding: 20px;
    font-size: 17px;
  }

  .single-entry__button {
    width: 100%;
  }
}