/* ==================== Variables ==================== */
:root {
  --bg-body: #f5f6f8;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f3f5f7;
  --bg-header: rgba(255, 255, 255, 0.92);
  --bg-overlay: rgba(20, 18, 19, 0.55);

  --text-primary: #1c1a1b;
  --text-secondary: #4c4547;
  --text-muted: #74696c;
  --text-on-primary: #ffffff;

  --color-primary: #ed1c23;
  --color-primary-hover: #cf171d;
  --color-primary-active: #b71318;
  --color-primary-soft: #f2f4f7;
  --color-primary-glow: rgba(237, 28, 35, 0);

  --border-light: #e2e5e9;
  --border-strong: #d3d8df;

  --font-family-base: "Montserrat", "Segoe UI", Roboto, Arial, sans-serif;

  --font-size-h1: 2.35rem;
  --font-size-h2: 1.8rem;
  --font-size-h3: 1.2rem;
  --font-size-body: 0.95rem;
  --font-size-small: 0.8125rem;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-heading: 1.16;
  --line-height-body: 1.52;

  --letter-spacing-h1: -0.02em;
  --letter-spacing-h2: -0.01em;

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 4px;
  --radius-md: 7px;
  --radius-lg: 11px;
  --radius-pill: 500px;

  --shadow-soft: 0 8px 24px -18px rgba(15, 10, 12, 0.25);
  --shadow-card: 0 18px 42px -24px rgba(22, 10, 12, 0.28);
  --shadow-hover: 0 26px 46px -24px rgba(22, 10, 12, 0.33);

  --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);

  --container-width: 1400px;
  --container-padding: 24px;

  --card-media-ratio: 16 / 9;
}

/* ==================== Reset ==================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  color: var(--text-primary);
  background: var(--bg-body);
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  display: block;
}

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

/* ==================== Typography ==================== */
h1,
h2,
h3 {
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.1rem, 3vw + 1rem, var(--font-size-h1));
  line-height: var(--line-height-heading);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-h1);
}

h2 {
  font-size: clamp(1.7rem, 1.8vw + 1rem, var(--font-size-h2));
  line-height: 1.2;
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-h2);
}

h3 {
  font-size: var(--font-size-h3);
  line-height: 1.24;
  font-weight: var(--font-weight-semibold);
}

p,
li {
  color: var(--text-secondary);
}

time,
small {
  font-size: var(--font-size-small);
  color: var(--text-muted);
}

/* ==================== Layout ==================== */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 0;
}

.page__main {
  flex: 1 0 auto;
  padding-top: var(--space-2xl);
}

.container {
  width: 100%;
  max-width: calc(var(--container-width) + (var(--container-padding) * 2));
  margin: 0 auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-bottom: var(--space-2xl);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  align-items: stretch;
}

.cards-grid--news {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.section-actions {
  margin-top: var(--space-xl);
  display: flex;
  justify-content: center;
}

.content-stack {
  display: grid;
  gap: var(--space-xl);
}

/* ==================== Header ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-header);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 22px -22px rgba(20, 16, 17, 0.45);
}

.site-header__inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.site-brand {
  display: inline-grid;
  gap: 2px;
}

.site-brand__logo {
  width: auto;
  height: 34px;
  object-fit: contain;
}

.site-brand__eyebrow {
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-brand__title {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
}

.micro-nav {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  box-shadow: var(--shadow-soft);
}

.micro-nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding-inline: var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base);
}

.micro-nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-surface-alt);
  transform: translateY(-1px);
}

.micro-nav__link--active {
  color: var(--text-on-primary);
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  box-shadow: 0 12px 20px -18px rgba(237, 28, 35, 0.75);
}

/* ==================== Intro ==================== */
.page-lead {
  margin-bottom: var(--space-md);
}

.page-lead__panel {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: #ffffff;
  box-shadow: var(--shadow-card);
  padding: clamp(var(--space-lg), 2vw + 1rem, var(--space-2xl));
}

.page-lead__title {
  margin-bottom: var(--space-sm);
}

.page-lead__description {
  max-width: 760px;
  font-size: 1.025rem;
}

/* ==================== Buttons ==================== */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  min-height: 46px;
  padding: 0.7rem 1.3rem;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-semibold);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.button--primary {
  color: var(--text-on-primary);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  border-color: transparent;
  box-shadow: 0 16px 24px -18px rgba(237, 28, 35, 0.55);
}

.button--primary:hover {
  transform: translateY(-1px);
  color: var(--text-on-primary);
  background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-active));
}

.button--ghost {
  color: var(--text-on-primary);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  border-color: transparent;
  box-shadow: 0 16px 24px -18px rgba(237, 28, 35, 0.55);
}

.button--ghost:hover {
  color: var(--text-on-primary);
  background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-active));
}

.button__icon {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ==================== News Cards ==================== */
.news-card,
.presentation-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.news-card:hover,
.presentation-card:hover {
  transform: translateY(-4px);
  border-color: rgba(237, 28, 35, 0.28);
  box-shadow: var(--shadow-hover);
}

.news-card__link,
.presentation-card__link {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.news-card__media,
.presentation-card__media {
  overflow: hidden;
}

.news-card__image,
.presentation-card__image,
.article-layout__cover-image,
.about-hero__image {
  width: 100%;
  aspect-ratio: var(--card-media-ratio);
  object-fit: cover;
  transition: transform var(--transition-base);
}

.news-card:hover .news-card__image,
.presentation-card:hover .presentation-card__image {
  transform: scale(1.04);
}

.news-card__body,
.presentation-card__body {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-lg);
  align-content: start;
}

.presentation-card__body {
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-md) 6px;
}

.news-card__date,
.presentation-card__date {
  font-size: var(--font-size-small);
  color: var(--text-muted);
}

.news-card__title,
.presentation-card__title {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.news-card__excerpt,
.presentation-card__description {
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.news-card__link-icon {
  margin-top: var(--space-xs);
  width: 1.15rem;
  height: 1.15rem;
  color: var(--color-primary);
}

.news-card__link-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ==================== Presentation ==================== */
.presentation-card__footer {
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: #f3f4f6;
  color: var(--color-primary-hover);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.presentation-card__file {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  line-height: 1.25;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.presentation-card__actions {
  padding: 0 var(--space-md) 8px;
}

.presentation-card__actions .button {
  min-height: 40px;
  padding: 0.5rem 0.95rem;
  font-size: 0.85rem;
}

/* ==================== Article ==================== */
.article-layout {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
  padding: clamp(var(--space-lg), 2vw + 1rem, var(--space-2xl));
}

.article-layout h2 {
  margin-bottom: var(--space-xs);
}

.article-layout__header {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.article-layout__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.article-layout__cover {
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.article-layout__content {
  display: grid;
  gap: var(--space-md);
}

.article-layout__content + .content-stack {
  margin-top: var(--space-lg);
}

/* ==================== About ==================== */
.about-hero {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-card);
}

.about-hero__layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 420px;
}

.about-hero__body {
  padding: clamp(var(--space-lg), 2vw + 1rem, var(--space-2xl));
  display: grid;
  align-content: center;
  gap: var(--space-md);
}

.about-hero__media {
  position: relative;
  overflow: hidden;
}

.about-hero__media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23, 17, 18, 0.26), rgba(23, 17, 18, 0.18));
  pointer-events: none;
}

.about-hero__image {
  width: 100%;
  height: 100%;
  min-height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
}

.content-section {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--shadow-soft);
  padding: clamp(var(--space-lg), 1.8vw + 1rem, var(--space-xl));
  display: grid;
  gap: var(--space-md);
}

.content-section h2 {
  margin-bottom: 2px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
  list-style: none;
}

.feature-item {
  position: relative;
  display: grid;
  align-content: start;
  gap: var(--space-xs);
  min-height: 174px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: 0.95rem 1rem;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.feature-item::before {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  top: -1px;
  height: 4px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
}

.feature-item::after {
  content: "";
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  border: 1px solid rgba(237, 28, 35, 0.22);
  background-image: radial-gradient(circle at 50% 50%, rgba(237, 28, 35, 0.9) 0 22%, transparent 24% 100%);
  background-repeat: no-repeat;
  background-position: center;
}

.feature-item:hover {
  transform: translateY(-3px);
  border-color: rgba(237, 28, 35, 0.35);
  box-shadow: var(--shadow-card);
}

.feature-item__title {
  display: block;
  margin-top: 2px;
  color: var(--text-primary);
  font-weight: var(--font-weight-bold);
  font-size: 1rem;
}

.diagram {
  margin-top: var(--space-md);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: var(--space-md);
  display: grid;
  gap: var(--space-md);
}

.diagram__title {
  margin: 0;
  font-size: 1.05rem;
}

.diagram__svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  background: #fff;
  border: 1px solid var(--border-light);
}

.diagram__legend {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xs);
  list-style: none;
}

.diagram__legend-item {
  font-size: var(--font-size-small);
  color: var(--text-secondary);
}

.diagram-node {
  fill: #ffffff;
  stroke: #d9bcc1;
  stroke-width: 1.5;
  rx: 12;
}

.diagram-node--accent {
  fill: #fff1f2;
  stroke: #ed1c23;
}

.diagram-link {
  fill: none;
  stroke: #cc8e96;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 5 4;
}

.diagram-chip {
  fill: #f3f4f6;
  stroke: #ed1c23;
  stroke-width: 1.3;
}

.diagram-text {
  fill: #30292c;
  font-family: var(--font-family-base);
  font-size: 12px;
  font-weight: 600;
}

.diagram-text--small {
  fill: #5d5053;
  font-size: 11px;
  font-weight: 500;
}

/* ==================== Attachments ==================== */
.attachment-list {
  display: grid;
  gap: var(--space-sm);
}

.attachment-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: #fff;
  transition: border-color var(--transition-base), background var(--transition-base), transform var(--transition-base);
}

.attachment-item:hover {
  border-color: rgba(237, 28, 35, 0.38);
  background: var(--bg-surface-alt);
  transform: translateY(-1px);
}

.attachment-item__icon,
.attachment-item__download {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.attachment-item__icon svg,
.attachment-item__download svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.attachment-item__content {
  min-width: 0;
  flex: 1;
}

.attachment-item__name {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.attachment-item__meta {
  margin-top: 2px;
  font-size: var(--font-size-small);
  color: var(--text-muted);
}

/* ==================== Footer ==================== */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.92);
  flex-shrink: 0;
  backdrop-filter: blur(6px);
}

.site-footer__inner {
  min-height: 84px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--space-lg);
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
}

.site-footer__logo {
  width: auto;
  height: 30px;
  object-fit: contain;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-md);
}

.footer-links__button {
  font-size: var(--font-size-small);
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.38rem 0.62rem;
  transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

.footer-links__button:hover {
  color: var(--color-primary-hover);
  border-color: rgba(237, 28, 35, 0.28);
  background: #fff6f6;
}

/* ==================== Modal ==================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: var(--space-lg);
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
}

.modal__dialog {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  max-height: calc(100vh - 70px);
  overflow-y: auto;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--shadow-hover);
  padding: var(--space-xl);
}

.modal__close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: grid;
  place-items: center;
  transition: background var(--transition-base), color var(--transition-base);
}

.modal__close:hover {
  color: var(--text-primary);
  background: var(--bg-surface-alt);
}

.modal__title {
  padding-right: 2.2rem;
  margin-bottom: var(--space-sm);
}

.modal__text {
  color: var(--text-secondary);
}

/* ==================== Cookie ==================== */
.cookie-banner {
  position: fixed;
  left: 50%;
  bottom: var(--space-md);
  transform: translateX(-50%);
  z-index: 90;
  width: min(980px, calc(100% - 2rem));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow-hover);
  backdrop-filter: blur(6px);
}

.cookie-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
}

.cookie-banner__text {
  font-size: var(--font-size-small);
}

.cookie-banner__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

/* ==================== Utilities ==================== */
.is-hidden {
  display: none !important;
}

.is-scroll-locked {
  overflow: hidden;
}

/* ==================== Motion Preferences ==================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  :root {
    --container-padding: 20px;
    --space-2xl: 2.5rem;
    --font-size-h1: 2.1rem;
    --font-size-h2: 1.65rem;
  }

  .site-header__inner {
    min-height: 78px;
  }

  .about-hero__layout {
    min-height: 380px;
  }

  .cards-grid--news {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }

  .page__main {
    padding-top: var(--space-xl);
  }

  .site-header {
    position: static;
  }

  .site-header__inner {
    min-height: auto;
    padding-block: var(--space-md);
    flex-direction: column;
    align-items: stretch;
  }

  .site-brand {
    text-align: center;
  }

  .micro-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .micro-nav__link {
    white-space: nowrap;
  }

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

  .feature-list {
    grid-template-columns: 1fr;
  }

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

  .about-hero__media {
    min-height: 220px;
  }

  .about-hero__image {
    min-height: 220px;
  }

  .cookie-banner {
    left: var(--space-sm);
    right: var(--space-sm);
    transform: none;
    width: auto;
  }

  .cookie-banner__inner {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-banner__actions {
    width: 100%;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .modal {
    padding: var(--space-sm);
  }

  .modal__dialog {
    padding: var(--space-lg);
  }

  .footer-links {
    gap: var(--space-sm);
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    justify-items: start;
    padding-block: var(--space-sm);
    row-gap: var(--space-sm);
  }

  .footer-links {
    width: 100%;
    justify-content: flex-start;
  }
}