:root {
  --bg-base: #0D1117;
  --bg-surface: #161B22;
  --text-primary: #C9D1D9;
  --text-secondary: #8B949E;
  --accent-success: #238636;
  --border-default: #30363D;
  --status-live: #238636;
  --status-warning: #D29922;
  --font-heading: "Space Grotesk", sans-serif;
  --font-body: "IBM Plex Mono", monospace;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --radius-0: 0px;
  --radius-1: 2px;
  --radius-2: 4px;
  --container-max: 1200px;
  --container-pad-mobile: 16px;
  --container-pad-desktop: 24px;
  --transition-fast: 150ms ease-in-out;
  --focus-outline: 2px solid var(--accent-success);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

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

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-block-end: var(--space-4);
}

h1 {
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1.2;
  font-weight: 600;
}

h2 {
  font-size: clamp(24px, 3vw, 28px);
  line-height: 1.3;
  font-weight: 500;
}

h3 {
  font-size: clamp(18px, 2.2vw, 20px);
  line-height: 1.4;
  font-weight: 500;
}

h4 {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 500;
}

h5 {
  font-size: 14px;
  line-height: 1.5;
  font-weight: 500;
}

h6 {
  font-size: 12px;
  line-height: 1.4;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

p {
  font-size: 16px;
  line-height: 1.5;
  margin-block-end: var(--space-4);
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

blockquote {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-4);
  border-inline-start: 1px solid var(--border-default);
  color: var(--text-secondary);
}

ul,
ol {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-5);
}

ul {
  list-style: disc;
}

ol {
  list-style: decimal;
}

li {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.content-list > dl {
  margin-block-end: var(--space-4);
}

dt {
  font-weight: 500;
  color: var(--text-primary);
}

dd {
  margin-inline-start: var(--space-4);
  margin-block-end: var(--space-2);
  color: var(--text-secondary);
}

figure {
  margin-block-end: var(--space-4);
}

figcaption {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-block-start: var(--space-2);
}

hr {
  border: none;
  border-top: 1px solid var(--border-default);
  margin-block: var(--space-6);
}

address {
  font-style: normal;
}

small {
  font-size: 12px;
  line-height: 1.4;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
}

pre {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  padding: var(--space-4);
  overflow-x: auto;
  margin-block-end: var(--space-4);
}

code {
  background-color: var(--bg-surface);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-1);
}

pre code {
  background: none;
  padding: 0;
  border-radius: 0;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-mobile);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--container-pad-desktop);
  }
}

.surface {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-0);
}

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-0);
  padding: var(--space-5);
}

.card > :last-child,
.panel > :last-child,
.surface > :last-child {
  margin-block-end: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  border-radius: var(--radius-1);
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--accent-success);
  color: var(--bg-base);
  border-color: var(--accent-success);
}

.btn-primary:hover {
  background-color: #2ea043;
  border-color: #2ea043;
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-default);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--text-secondary);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.data-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.4;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.data-label::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status-live);
  flex-shrink: 0;
}

.data-label--warning::before {
  background-color: var(--status-warning);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--status-live);
  flex-shrink: 0;
}

.status-dot--warning {
  background-color: var(--status-warning);
}

.status-dot--pulse {
  animation: status-pulse 2s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.divider {
  border: none;
  border-top: 1px solid var(--border-default);
  margin-block: var(--space-4);
}

.divider--full {
  margin-block: 0;
}

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-0);
  background-color: var(--bg-surface);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.3);
  transition: filter var(--transition-fast), transform var(--transition-fast);
}

.media-frame:hover img {
  filter: grayscale(0);
  transform: scale(1.03);
}

.media-frame--16-9 {
  aspect-ratio: 16 / 9;
}

.media-frame--4-3 {
  aspect-ratio: 4 / 3;
}

.media-frame--1-1 {
  aspect-ratio: 1 / 1;
}

.media-frame__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-base) 0%, rgba(13, 17, 23, 0.4) 50%, transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
  pointer-events: none;
}

.media-frame__overlay > * {
  pointer-events: auto;
}

.flex {
  display: flex;
  gap: var(--space-4);
  min-width: 0;
}

.flex > * {
  min-width: 0;
}

.flex--wrap {
  flex-wrap: wrap;
}

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

.flex--center {
  align-items: center;
}

.flex--between {
  justify-content: space-between;
}

.flex--start {
  align-items: flex-start;
}

.flex--end {
  align-items: flex-end;
}

.flex--stretch {
  align-items: stretch;
}

.flex--gap-sm {
  gap: var(--space-2);
}

.flex--gap-lg {
  gap: var(--space-6);
}

.flex--gap-xl {
  gap: var(--space-8);
}

.flex--no-gap {
  gap: 0;
}

.flex-1 {
  flex: 1 1 0%;
}

.flex-auto {
  flex: 0 0 auto;
}

.grid {
  display: grid;
  gap: var(--space-5);
  min-width: 0;
}

.grid > * {
  min-width: 0;
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

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

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

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--gap-sm {
  gap: var(--space-3);
}

.grid--gap-lg {
  gap: var(--space-6);
}

.grid--gap-xl {
  gap: var(--space-8);
}

@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  background-color: var(--accent-success);
  color: var(--bg-base);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-1);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

input,
textarea,
select {
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-base);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-1);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-secondary);
}

input:focus,
textarea:focus,
select:focus {
  outline: var(--focus-outline);
  outline-offset: 1px;
  border-color: var(--accent-success);
}

input:hover,
textarea:hover,
select:hover {
  border-color: var(--text-secondary);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238B949E' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-inline-end: var(--space-6);
}

label {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-block-end: var(--space-2);
}

.form-group {
  margin-block-end: var(--space-4);
}

.form-group > :last-child {
  margin-block-end: 0;
}

.form-row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  min-width: 0;
}

.form-row > * {
  flex: 1 1 200px;
  min-width: 0;
}

@media (max-width: 767px) {
  .form-row > * {
    flex: 1 1 100%;
  }
}