/* =====================================================
   多宝体育 Site Kit 共享样式
   文件：/assets/site.css
   职责：重置、设计变量、页头页脚、通用正文组件
   ===================================================== */

/* ---------- Reset ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
  padding: 0;
}

ul[class], ol[class] {
  list-style: none;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-body);
  line-height: var(--leading-body);
  color: var(--light-gray);
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(to right, rgba(230, 237, 245, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(230, 237, 245, 0.025) 1px, transparent 1px),
    radial-gradient(1100px 520px at 88% -4%, rgba(57, 255, 20, 0.09), transparent 60%);
  background-size: 3rem 3rem, 3rem 3rem, auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

:focus-visible {
  outline: 2px solid var(--electric-green);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection {
  background: var(--electric-green);
  color: var(--deep-blue);
}

[hidden] {
  display: none !important;
}

/* ---------- Design Tokens ---------- */

:root {
  --deep-blue: #0A192F;
  --electric-green: #39FF14;
  --orange: #FF6B35;
  --slate: #1E2A3A;
  --light-gray: #E6EDF5;
  --white: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.08);
  --green-alt: #00C853;
  --off-white: #F5F7FA;
  --midnight-blue: #112240;

  --font-sans: "Alibaba PuHuiTi", "PingFang SC", "Source Han Sans CN", "Microsoft YaHei", "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Consolas, ui-monospace, monospace;

  --font-body: 1.0625rem;
  --font-data: 0.875rem;
  --font-caption: 0.6875rem;
  --leading-body: 1.7;

  --rail-w: clamp(2.75rem, 5vw, 4rem);
  --container-max: 1440px;
  --header-h: clamp(4.25rem, 7vw, 5.5rem);
  --radius: 4px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Left Frame Rail ---------- */

body::before {
  content: "";
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 90;
  pointer-events: none;
  background-color: var(--slate);
  background-image:
    linear-gradient(180deg, rgba(57, 255, 20, 0.1) 0, rgba(57, 255, 20, 0.1) 4px, transparent 4px),
    repeating-linear-gradient(180deg, transparent 0, transparent 1.25rem, rgba(230, 237, 245, 0.08) 1.25rem, rgba(230, 237, 245, 0.08) 1.33rem);
  border-right: 1px solid rgba(57, 255, 20, 0.16);
  border-top: 3px solid var(--electric-green);
}

/* ---------- Skip Link ---------- */

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  transform: translateY(-300%);
  z-index: 200;
  background: var(--electric-green);
  color: var(--deep-blue);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.6rem 1.1rem;
  border-radius: 2px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
  transition: transform 0.25s var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding-left: var(--rail-w);
  background: rgba(10, 25, 47, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(57, 255, 20, 0.14);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 10px 24px rgba(0, 0, 0, 0.25);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--electric-green) 0 34%, transparent 34%);
  pointer-events: none;
}

.header-frame {
  position: relative;
  min-height: var(--header-h);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.5rem);
}

.header-brand {
  flex-shrink: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 3px;
  background: var(--electric-green);
  color: var(--deep-blue);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow: 0 0 14px rgba(57, 255, 20, 0.28), 0 0 0 1px rgba(57, 255, 20, 0.2);
}

.brand__text {
  display: grid;
  gap: 0.12rem;
}

.brand__name {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: rgba(230, 237, 245, 0.4);
  white-space: nowrap;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: clamp(0.25rem, 1vw, 1rem);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: rgba(230, 237, 245, 0.75);
  padding: 0.32rem 0.75rem;
  border: 1px solid var(--glass);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

.status-chip--round {
  color: var(--electric-green);
  border-color: rgba(57, 255, 20, 0.28);
}

.status-chip__dot {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--electric-green);
  animation: status-pulse 2s ease-out infinite;
}

@keyframes status-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.5); }
  50% { box-shadow: 0 0 0 0.45rem rgba(57, 255, 20, 0); }
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  counter-reset: nav-index;
  display: flex;
  align-items: center;
  gap: clamp(0.05rem, 0.8vw, 1rem);
}

.nav-item {
  counter-increment: nav-index;
}

.nav-link {
  display: block;
  position: relative;
  padding: 0.6rem 0.55rem;
  font-size: 0.925rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--light-gray);
  border-radius: 2px;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-link::before {
  content: "0" counter(nav-index) " /";
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: rgba(57, 255, 20, 0.65);
  margin-right: 0.28rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: 0.25rem;
  height: 2px;
  background: var(--electric-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}

.nav-link:hover {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--electric-green);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass);
  border-radius: 3px;
  cursor: pointer;
  color: var(--light-gray);
  transition: background-color 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(57, 255, 20, 0.08);
}

.nav-toggle__bars {
  display: grid;
  gap: 5px;
  width: 1.2rem;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  background: var(--electric-green);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out);
}

.nav-toggle__text {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ---------- Shared Layout ---------- */

#main-content {
  display: block;
  padding-left: var(--rail-w);
}

.page-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}

.section {
  padding-block: clamp(2.5rem, 7vw, 6rem);
}

.section--tight {
  padding-block: clamp(1.25rem, 3vw, 2.5rem);
}

.section--band {
  background: var(--midnight-blue);
  border-block: 1px solid rgba(255, 255, 255, 0.05);
}

.section--light {
  background: var(--off-white);
  color: var(--deep-blue);
}

.section--light .section-title {
  color: var(--deep-blue);
}

.section--light .section-caption {
  color: var(--deep-blue);
}

.section--light .section-caption::before {
  background: var(--deep-blue);
}

.section--light .lead {
  color: rgba(10, 25, 47, 0.78);
}

.grid {
  display: grid;
  gap: clamp(1rem, 2.2vw, 1.75rem);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--asym { grid-template-columns: 1.618fr 1fr; }
.grid--asym-r { grid-template-columns: 1fr 1.618fr; }

/* ---------- Typography ---------- */

.display-title {
  font-size: clamp(3.2rem, 9.5vw, 9rem);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.015em;
  color: var(--white);
  max-width: 12em;
}

.section-title {
  font-size: clamp(1.8rem, 4.4vw, 3.25rem);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--white);
  max-width: 18em;
}

.section-caption {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--electric-green);
}

.section-caption::before {
  content: "";
  width: 1.6rem;
  height: 2px;
  background: var(--electric-green);
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.7;
  color: rgba(230, 237, 245, 0.85);
  max-width: 42em;
}

.caption {
  font-size: var(--font-caption);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(230, 237, 245, 0.5);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--font-data);
}

.data-num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 600;
  line-height: 1;
  color: var(--electric-green);
}

.section-index {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--electric-green);
}

.section-index__no {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
}

.page-head {
  padding-block: clamp(2rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
}

.page-head__index {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--electric-green);
  margin-bottom: 0.8rem;
}

.page-head__index::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--electric-green);
}

.page-head__title {
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 12em;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.2;
  cursor: pointer;
  text-align: center;
  background: var(--slate);
  color: var(--light-gray);
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--electric-green);
  color: var(--deep-blue);
  box-shadow: 0 6px 20px rgba(57, 255, 20, 0.22);
}

.btn--primary:hover {
  filter: brightness(1.08);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(57, 255, 20, 0.45);
  color: var(--electric-green);
}

.btn--ghost:hover {
  background: rgba(57, 255, 20, 0.08);
  border-color: var(--electric-green);
}

.btn--alert {
  background: var(--orange);
  color: var(--deep-blue);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.22);
}

/* ---------- Cards ---------- */

.card {
  background: var(--off-white);
  color: var(--deep-blue);
  border: 1px solid rgba(10, 25, 47, 0.06);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.card--dark {
  background: var(--midnight-blue);
  color: var(--light-gray);
  border-color: var(--glass);
  box-shadow: none;
}

.card--glass {
  background: var(--glass);
  color: var(--light-gray);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--deep-blue);
  margin-bottom: 0.4rem;
}

.card--dark .card-title,
.card--glass .card-title {
  color: var(--white);
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: rgba(10, 25, 47, 0.55);
  margin-bottom: 1rem;
}

.card--dark .card-meta,
.card--glass .card-meta {
  color: rgba(230, 237, 245, 0.5);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--deep-blue);
  border-bottom: 2px solid rgba(10, 25, 47, 0.3);
  transition: border-color 0.2s, color 0.2s;
}

.card--dark .card-link,
.card--glass .card-link {
  color: var(--electric-green);
  border-bottom-color: rgba(57, 255, 20, 0.35);
}

.card-link::after {
  content: "→";
  font-family: var(--font-mono);
}

.card-link:hover {
  border-bottom-color: currentColor;
}

/* ---------- Tables ---------- */

.data-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--glass);
  border-radius: var(--radius);
  background: rgba(10, 25, 47, 0.5);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 34rem;
}

.data-table thead th {
  background: var(--slate);
  color: var(--electric-green);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-align: left;
  padding: 0.8rem 1rem;
  white-space: nowrap;
}

.data-table thead th[data-sort] {
  cursor: pointer;
}

.data-table thead th[data-sort]::after {
  content: "⇵";
  margin-left: 0.45rem;
  font-size: 0.65rem;
  opacity: 0.4;
}

.data-table thead th.is-sorted-asc::after {
  content: "↑";
  opacity: 1;
}

.data-table thead th.is-sorted-desc::after {
  content: "↓";
  opacity: 1;
}

.data-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--glass);
  color: var(--light-gray);
}

.data-table tbody tr {
  transition: background-color 0.15s ease;
}

.data-table tbody tr:hover {
  background: rgba(57, 255, 20, 0.05);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Tags & Status ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--glass);
  background: rgba(30, 42, 58, 0.55);
  color: rgba(230, 237, 245, 0.85);
  white-space: nowrap;
}

.tag--live {
  color: var(--electric-green);
  border-color: rgba(57, 255, 20, 0.35);
}

.tag--hot {
  color: var(--orange);
  border-color: rgba(255, 107, 53, 0.4);
}

.status-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--electric-green);
  animation: status-pulse 2s ease-out infinite;
}

/* ---------- Notes ---------- */

.note {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: rgba(30, 42, 58, 0.7);
  border-left: 3px solid var(--electric-green);
  font-size: 0.875rem;
  color: rgba(230, 237, 245, 0.85);
}

.note--warn {
  border-left-color: var(--orange);
}

.note__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--electric-green);
  white-space: nowrap;
  line-height: 1.7;
}

.note--warn .note__label {
  color: var(--orange);
}

/* ---------- Breadcrumbs ---------- */

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(230, 237, 245, 0.45);
  margin-bottom: 1.75rem;
}

.crumb a {
  color: rgba(230, 237, 245, 0.8);
  transition: color 0.2s;
}

.crumb a:hover {
  color: var(--electric-green);
}

.crumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: rgba(230, 237, 245, 0.25);
}

/* ---------- Image Frames ---------- */

.img-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--slate);
  border: 1px solid var(--glass);
  aspect-ratio: 4 / 3;
}

.img-frame--wide { aspect-ratio: 16 / 7; }
.img-frame--square { aspect-ratio: 1 / 1; }
.img-frame--poster { aspect-ratio: 3 / 4; }

.img-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame--pattern {
  background-image:
    linear-gradient(var(--electric-green) 1px, transparent 1px),
    linear-gradient(90deg, var(--electric-green) 1px, transparent 1px);
  background-size: 1.4rem 1.4rem;
  opacity: 0.6;
}

.media-index {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(230, 237, 245, 0.45);
  padding-top: 0.6rem;
}

/* ---------- Scrollspy & Reveal ---------- */

[id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

[data-toc] a {
  display: block;
  padding: 0.45rem 0.6rem;
  border-left: 2px solid var(--glass);
  color: rgba(230, 237, 245, 0.7);
  font-size: 0.875rem;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

[data-toc] a:hover {
  color: var(--white);
  border-left-color: rgba(57, 255, 20, 0.4);
}

[data-toc] a.is-spy-active {
  color: var(--electric-green);
  border-left-color: var(--electric-green);
  background: rgba(57, 255, 20, 0.06);
}

[data-reveal].reveal-pending {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Footer ---------- */

.site-footer {
  position: relative;
  padding-left: var(--rail-w);
  background: linear-gradient(180deg, var(--deep-blue) 0%, var(--midnight-blue) 100%);
  border-top: 1px solid var(--slate);
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--electric-green) 0 24%, transparent 24%);
  pointer-events: none;
}

.footer-frame {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1rem, 3vw, 2.5rem) clamp(2rem, 4vw, 3rem);
}

.footer-brand .brand {
  margin-bottom: 1.1rem;
}

.brand--footer .brand__mark {
  width: 2.4rem;
  height: 2.4rem;
  font-size: 0.85rem;
}

.brand--footer .brand__name {
  font-size: 1.45rem;
}

.footer-claim {
  max-width: 34em;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(230, 237, 245, 0.72);
  margin-bottom: 1.25rem;
}

.footer-legal {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  font-size: 0.85rem;
}

.footer-legal-link {
  color: var(--electric-green);
  border-bottom: 1px dashed rgba(57, 255, 20, 0.4);
  transition: border-color 0.2s;
}

.footer-legal-link:hover {
  border-bottom-color: var(--electric-green);
}

.footer-legal-sep {
  color: rgba(230, 237, 245, 0.3);
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--electric-green);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass);
}

.footer-nav-list {
  display: grid;
  gap: 0.55rem;
  font-size: 0.9rem;
}

.footer-nav-list a {
  color: rgba(230, 237, 245, 0.85);
  transition: color 0.2s;
}

.footer-nav-list a:hover {
  color: var(--electric-green);
}

.contact-list {
  display: grid;
  gap: 0.65rem;
  list-style: none;
}

.contact-item {
  display: grid;
  grid-template-columns: 4.5em 1fr;
  gap: 0.75rem;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(230, 237, 245, 0.45);
  padding-top: 0.25rem;
  white-space: nowrap;
}

.contact-value {
  font-size: 0.88rem;
  color: rgba(230, 237, 245, 0.92);
  word-break: break-word;
}

.footer-note {
  margin-top: 1.25rem;
  padding-left: 0.8rem;
  border-left: 2px solid var(--orange);
  font-size: 0.78rem;
  color: rgba(230, 237, 245, 0.5);
}

.footer-colophon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  align-items: center;
  justify-content: space-between;
  background: var(--off-white);
  color: var(--deep-blue);
  padding: 0.95rem clamp(1rem, 3vw, 2.5rem);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.colophon-line {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.colophon-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--orange);
}

.colophon-line--signal {
  color: rgba(10, 25, 47, 0.7);
}

/* ---------- Back To Top ---------- */

.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 120;
  width: 3rem;
  height: 3rem;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--slate);
  color: var(--electric-green);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(57, 255, 20, 0.18);
  transition: background-color 0.2s, transform 0.2s;
}

.back-to-top:hover {
  background: var(--midnight-blue);
  transform: translateY(-2px);
}

.back-to-top__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.back-to-top__track {
  fill: none;
  stroke: rgba(230, 237, 245, 0.15);
  stroke-width: 2;
}

.back-to-top__progress {
  fill: none;
  stroke: var(--electric-green);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 125.66 125.66;
  stroke-dashoffset: 125.66;
  transform: rotate(-90deg);
  transform-origin: center;
}

.back-to-top__icon {
  font-size: 1.05rem;
  line-height: 1;
}

/* ---------- Responsive ---------- */

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-status {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    background: rgba(10, 25, 47, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(57, 255, 20, 0.22);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
    padding: 0 clamp(1rem, 3vw, 2.5rem);
    transition: max-height 0.35s var(--ease-out), opacity 0.25s ease, padding 0.3s ease;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    visibility: visible;
    opacity: 1;
    padding-block: 1rem;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    padding: 0.85rem 0.4rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--glass);
  }

  .nav-link::after {
    left: 0.4rem;
    right: auto;
    width: 2px;
    height: auto;
    top: 0.9rem;
    bottom: 0.9rem;
    transform: scaleY(0);
    transform-origin: center;
  }

  .nav-link:hover::after,
  .nav-link[aria-current="page"]::after {
    transform: scaleY(1);
  }

  .footer-frame {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .grid--2 { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--asym { grid-template-columns: 1fr; }
  .grid--asym-r { grid-template-columns: 1fr; }
}

@media (max-width: 719px) {
  body::before {
    display: none;
  }

  .site-header,
  .site-footer,
  #main-content {
    padding-left: 0;
  }

  .header-frame {
    gap: 0.75rem;
  }

  .brand__sub {
    display: none;
  }

  .brand__name {
    font-size: 1.1rem;
  }

  .footer-frame {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-colophon {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---------- Reduced Motion ---------- */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal].reveal-pending {
    opacity: 1;
    transform: none;
  }
}