@import "./fonts.css";
@import "./variables.css";

* {
  box-sizing: border-box;
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.28) transparent;
}

*::-webkit-scrollbar {
  width: 4px;
}

*::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.28);
  border-radius: 4px;
}

html {
  scroll-behavior: smooth;
  background-color: var(--pp-bg-primary);
}

body {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font-sf);
  letter-spacing: -0.2px;
  color: var(--pp-text-primary);
  background-color: var(--pp-bg-primary);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background: var(--gradient-orange-glow);
}

body::after {
  background: var(--gradient-red-glow);
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

.hidden {
  display: none !important;
}

.app-shell {
  position: relative;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
  min-height: 100dvh;
  max-width: var(--max-width);
  margin: 0 auto;
}

.app-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  padding-top: max(12px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--pp-border-subtle);
  background: var(--pp-bg-primary);
}

.menu-trigger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--pp-border-card);
  border-radius: var(--radius-toggle);
  background: var(--pp-bg-button);
  color: var(--pp-text-primary);
  cursor: pointer;
}

.menu-trigger__bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

body.nav-open .menu-trigger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .menu-trigger__bar:nth-child(2) {
  opacity: 0;
}

body.nav-open .menu-trigger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(0, 0, 0, 0.65);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}

.nav-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.nav-backdrop[hidden] {
  display: block;
}

.nav-drawer {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  border-right: 1px solid var(--pp-border-subtle);
  background: var(--pp-bg-primary);
  z-index: 70;
}

.nav-drawer__panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  height: 100%;
  padding: 20px 16px 16px;
  overflow: auto;
}

.pp-logo {
  font-family: var(--font-imbue);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--pp-text-primary);
  white-space: nowrap;
}

.pp-logo--sidebar {
  font-size: clamp(1.75rem, 4vw, 2.2rem);
}

.pp-logo--header {
  font-size: 1.35rem;
  text-align: right;
}

.brand-card {
  padding: 18px 16px;
  border: 1px solid var(--pp-border-card);
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at 20% 0%, rgba(229, 69, 0, 0.22), transparent 55%),
    var(--pp-bg-card);
  box-shadow: var(--shadow-card);
}

.brand-card__eyebrow {
  margin: 10px 0 0;
  color: var(--pp-text-muted);
  font-family: var(--font-inter);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--pp-text-muted);
  font-family: var(--font-inter);
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.search-field {
  display: grid;
  gap: 8px;
}

.search-label {
  color: var(--pp-text-muted);
  font-family: var(--font-inter);
  font-size: 0.88rem;
  font-weight: 500;
}

.search-field input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--pp-border-card);
  border-radius: var(--radius-toggle);
  background: var(--pp-bg-card);
  color: var(--pp-text-primary);
  outline: none;
}

.search-field input::placeholder {
  color: var(--pp-text-disabled);
}

.search-field input:focus,
.action-button:focus,
.menu-trigger:focus,
.nav-link:focus,
.toc-link:focus {
  border-color: rgba(229, 69, 0, 0.65);
  box-shadow: 0 0 0 3px rgba(229, 69, 0, 0.14);
}

.nav-groups {
  display: grid;
  gap: 18px;
  padding-bottom: 12px;
}

.nav-group-title {
  margin: 0 0 8px;
  padding: 0 8px;
  color: var(--pp-text-muted);
  font-family: var(--font-inter);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-list {
  display: grid;
  gap: 4px;
}

.nav-link {
  display: block;
  min-height: 48px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-toggle);
  color: var(--pp-text-muted);
  text-decoration: none;
  font-family: var(--font-inter);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.35;
  transition: 160ms ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--pp-text-primary);
}

.nav-link.active {
  background: var(--pp-accent);
  color: var(--pp-text-primary);
  box-shadow:
    inset 0 0 12px rgba(255, 255, 255, 0.08),
    0 0 16px rgba(229, 69, 0, 0.35);
}

.main-layout {
  min-width: 0;
  padding: clamp(16px, 3vw, 28px);
}

.hero-panel,
.article-card,
.toc-card,
.metric-card {
  background: var(--pp-bg-card);
  border: 1px solid var(--pp-border-card);
  box-shadow: var(--shadow-card);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.75fr);
  gap: clamp(16px, 2.5vw, 24px);
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-card);
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(180deg, rgba(12, 12, 12, 0.72), rgba(12, 12, 12, 0.92)),
    url("../assets/images/main-page.png");
  background-size: cover;
  background-position: center top;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 10%, rgba(229, 69, 0, 0.22), transparent 42%);
  pointer-events: none;
}

.hero-copy,
.hero-metrics {
  position: relative;
  z-index: 1;
}

.hero-copy h2 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--font-reforma);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.hero-text {
  max-width: 58ch;
  margin: 16px 0 0;
  color: var(--pp-text-muted);
  font-family: var(--font-sf);
  line-height: 1.7;
  font-size: clamp(0.95rem, 2vw, 1rem);
}

.hero-metrics {
  display: grid;
  gap: 12px;
  align-content: end;
}

.metric-card {
  padding: 16px 18px;
  border-radius: var(--radius-button);
  background: rgba(0, 0, 0, 0.55);
}

.metric-label {
  display: block;
  margin-bottom: 6px;
  color: var(--pp-text-muted);
  font-family: var(--font-inter);
  font-size: 0.8rem;
}

.metric-card strong {
  font-family: var(--font-reforma);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.content-shell {
  display: grid;
  gap: 18px;
  margin-top: clamp(16px, 3vw, 24px);
}

.content-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.content-header h2 {
  margin: 0;
  font-family: var(--font-reforma);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.article-summary {
  margin: 10px 0 0;
  max-width: 62ch;
  color: var(--pp-text-muted);
  font-family: var(--font-sf);
  line-height: 1.6;
  font-size: clamp(0.92rem, 2vw, 1rem);
}

.content-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.action-button {
  min-height: 50px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius-button);
  background: var(--pp-accent);
  color: var(--pp-text-primary);
  font-family: var(--font-sf);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.3px;
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: background 160ms ease, transform 160ms ease;
}

.action-button:hover {
  background: var(--pp-accent-stripe);
}

.action-button:active {
  transform: scale(0.98);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.article-card,
.toc-card {
  grid-column: auto;
  grid-row: auto;
  border-radius: var(--radius-card);
}

@media (min-width: 1181px) {
  .article-layout:has(.toc-card:not(.hidden)) {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
  }

  .article-layout:has(.toc-card:not(.hidden)) .article-card {
    grid-column: 1;
    grid-row: 1;
  }

  .article-layout:has(.toc-card:not(.hidden)) .toc-card {
    grid-column: 2;
    grid-row: 1;
  }
}

.article-card {
  padding: clamp(20px, 3vw, 28px);
}

.toc-card {
  position: sticky;
  top: 24px;
  padding: 20px;
}

.toc-nav {
  display: grid;
  gap: 6px;
}

.toc-link {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--pp-text-muted);
  border: 1px solid transparent;
  font-family: var(--font-inter);
  font-size: 0.92rem;
  line-height: 1.4;
}

.toc-link:hover {
  background: rgba(229, 69, 0, 0.1);
  color: var(--pp-text-primary);
}

.toc-link--nested {
  padding-left: 22px;
  font-size: 0.88rem;
}

.article-content {
  color: var(--pp-text-primary);
  font-family: var(--font-sf);
  font-size: clamp(0.95rem, 2vw, 1rem);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

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

.article-content h2,
.article-content h3 {
  margin-top: 2.2em;
  margin-bottom: 0.6em;
  scroll-margin-top: calc(72px + env(safe-area-inset-top));
}

.article-content h2 {
  font-family: var(--font-reforma);
  font-size: clamp(1.2rem, 3vw, 1.45rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.article-content h3 {
  font-family: var(--font-inter);
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--pp-text-accent);
}

.article-content p,
.article-content ul,
.article-content ol,
.article-content hr,
.article-content blockquote,
.article-content .image-grid,
.article-content .empty-state {
  margin: 0 0 1.2em;
}

.article-content ul,
.article-content ol {
  padding-left: 1.4rem;
}

.article-content li + li {
  margin-top: 0.45rem;
}

.article-content hr {
  border: 0;
  border-top: 1px solid var(--pp-border-card);
}

.article-content strong {
  color: var(--pp-text-accent);
}

.article-content code {
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  background: rgba(229, 69, 0, 0.12);
  color: var(--pp-accent-stripe);
  word-break: break-word;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 12px;
}

.image-grid img {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--pp-border-card);
  background: var(--pp-bg-ui);
}

.empty-state {
  padding: 16px;
  border: 1px dashed var(--pp-border-card);
  border-radius: 12px;
  color: var(--pp-text-muted);
  background: rgba(255, 255, 255, 0.02);
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding-top: var(--app-header-height);
  }

  .app-header {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
  }

  .nav-backdrop {
    top: var(--app-header-height);
  }

  .nav-drawer {
    position: fixed;
    top: var(--app-header-height);
    left: 0;
    bottom: 0;
    height: calc(100dvh - var(--app-header-height));
    width: min(92vw, 320px);
    max-width: 320px;
    transform: translateX(-105%);
    transition: transform 240ms ease;
    box-shadow: 24px 0 60px rgba(0, 0, 0, 0.55);
    background: var(--pp-bg-primary);
    z-index: 90;
  }

  body.nav-open .nav-drawer {
    transform: translateX(0);
  }

  .main-layout {
    padding-top: 0;
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  .toc-card {
    position: static;
  }
}

@media (max-width: 993px) {
  .hero-copy h2 {
    max-width: none;
  }

  .content-header {
    flex-direction: column;
  }

  .content-actions {
    width: 100%;
  }

  .action-button {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .hero-panel,
  .article-card,
  .toc-card {
    border-radius: 14px;
  }

  .nav-drawer__panel {
    padding-bottom: max(15px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 576px) {
  .app-header {
    padding-inline: 12px;
  }

  .main-layout {
    padding-inline: 12px;
  }

  .hero-panel,
  .article-card,
  .toc-card {
    border-radius: 12px;
  }

  .hero-panel,
  .article-card {
    padding: 16px;
  }

  .metric-card {
    padding: 14px 16px;
  }
}

@media (max-width: 395px) {
  .menu-trigger {
    width: 40px;
    height: 40px;
  }

  .nav-drawer {
    width: 100vw;
    max-width: none;
  }
}

@media (min-width: 1400px) {
  .main-layout {
    padding-inline: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .nav-drawer,
  .nav-backdrop,
  .nav-link,
  .toc-link,
  .menu-trigger__bar,
  .action-button {
    transition: none;
  }
}