:root {
  --canvas: #181818;
  --canvas-elevated: #303030;
  --light: #ffffff;
  --soft-light: #f7f7f7;
  --line-dark: #303030;
  --line-light: #d2d2d2;
  --ink: #ffffff;
  --body: #969696;
  --body-light: #181818;
  --muted: #666666;
  --red: #da291c;
  --red-active: #b01e0a;
  --red-dark: #9d2211;
  --yellow: #fff200;

  --space-xxs: 8px;
  --space-xs: 16px;
  --space-sm: 24px;
  --space-md: 32px;
  --space-lg: 48px;
  --space-xl: 64px;
  --space-xxl: 96px;
  --space-super: 128px;

  --font-main: Inter, 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body,
body.krf-page {
  margin: 0;
  min-height: 100vh;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-main);
  font-weight: 400;
  letter-spacing: 0;
}

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

button,
input,
textarea {
  font-family: inherit;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* ============================================================
   GLOBAL TOP NAV
============================================================ */
.topbar,
.organ-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 64px;
  padding: 0 var(--space-md);
  background: rgba(24, 24, 24, .96);
  color: var(--ink);
  border-bottom: 1px solid var(--line-dark);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar::after,
.organ-topbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.topbar > div:first-child,
.organ-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.organ-logo-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--red);
  color: #fff;
  font-weight: 700;
  border-radius: 0;
}

.topbar strong,
.organ-brand strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.topbar span,
.organ-brand span {
  display: block;
  margin-top: 3px;
  color: var(--body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .4px;
}

.topbar nav,
.organ-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.topbar nav a,
.organ-nav a {
  min-height: 64px;
  display: inline-flex;
  align-items: center;
  padding: 0 17px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .65px;
  text-transform: uppercase;
  border-left: 1px solid rgba(255,255,255,.04);
}

.topbar nav a:hover,
.organ-nav a:hover,
.organ-nav a.active {
  background: var(--red);
  color: #fff;
}

/* ============================================================
   BUTTONS
============================================================ */
button,
.button,
.organ-btn {
  min-height: 48px;
  border-radius: 0;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  padding: 0 var(--space-md);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button:hover,
.button:hover,
.organ-btn:hover {
  background: var(--ink);
  color: var(--canvas);
}

button.primary,
.primary,
.login-box button,
.server-actions button:first-child,
.hero-actions button:first-child {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

button.primary:hover,
.primary:hover,
.login-box button:hover,
.server-actions button:first-child:hover,
.hero-actions button:first-child:hover {
  background: var(--red-active);
  border-color: var(--red-active);
  color: #fff;
}

/* ============================================================
   INDEX / EDIT PAGE
============================================================ */
.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: var(--space-lg);
}

.sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  background: var(--canvas-elevated);
  border: 1px solid var(--line-dark);
  border-radius: 0;
  padding: var(--space-sm);
}

.sidebar-title {
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.sidebar a {
  display: block;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: var(--body);
  font-size: 13px;
  line-height: 1.5;
}

.sidebar a:hover {
  color: var(--ink);
}

.updated,
.muted,
.organ-muted {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  margin-top: var(--space-sm);
}

.content {
  min-width: 0;
}

.hero,
.organ-hero {
  position: relative;
  min-height: 420px;
  padding: var(--space-xxl) var(--space-lg) var(--space-lg);
  background:
    linear-gradient(180deg, rgba(24,24,24,.08), rgba(24,24,24,.86)),
    radial-gradient(circle at 78% 18%, rgba(218,41,28,.36), transparent 30%),
    linear-gradient(135deg, #303030, #030303 64%);
  border: 1px solid var(--line-dark);
  color: var(--ink);
  border-radius: 0;
  overflow: hidden;
  display: grid;
  align-content: end;
  margin-bottom: var(--space-md);
}

.hero::before,
.organ-hero::before {
  content: "BEFORE START";
  position: absolute;
  right: var(--space-md);
  top: var(--space-md);
  color: rgba(255,255,255,.045);
  font-size: clamp(48px, 12vw, 160px);
  font-weight: 700;
  line-height: .85;
  letter-spacing: -1.6px;
  pointer-events: none;
}

.hero::after,
.organ-hero::after {
  content: "";
  position: absolute;
  left: var(--space-lg);
  top: var(--space-lg);
  width: 80px;
  height: 3px;
  background: var(--red);
}

.hero h1,
.organ-hero h1 {
  position: relative;
  z-index: 1;
  margin: 0 0 var(--space-xs);
  max-width: 900px;
  color: var(--ink);
  font-size: clamp(36px, 6vw, 80px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -1.6px;
}

.hero p,
.hero-desc,
.organ-hero p {
  position: relative;
  z-index: 1;
  max-width: 780px;
  color: var(--body);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.eyebrow {
  color: var(--red);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  margin: 0 0 var(--space-xs);
}

.card,
.organ-panel,
.metric-card,
.organ-kpi {
  background: var(--canvas-elevated);
  color: var(--ink);
  border: 1px solid var(--line-dark);
  border-radius: 0;
  box-shadow: none;
  padding: var(--space-md);
}

.card h2,
.organ-panel h2 {
  margin: 0 0 var(--space-sm);
  color: var(--ink);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: .195px;
}

.field-label {
  display: block;
  color: var(--body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  margin-bottom: var(--space-xxs);
}

.title-input,
.section-title,
textarea,
.login-box input {
  width: 100%;
  border: 1px solid var(--line-dark);
  border-radius: 4px;
  background: var(--canvas);
  color: var(--ink);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.5;
  outline: none;
}

.title-input:focus,
.section-title:focus,
textarea:focus,
.login-box input:focus {
  border-color: var(--red);
}

.title-input {
  font-size: 26px;
  font-weight: 500;
  letter-spacing: .195px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

textarea {
  min-height: 280px;
  resize: vertical;
  white-space: pre-wrap;
}

.edit-form {
  display: grid;
  gap: var(--space-sm);
}

.bottom-actions {
  position: sticky;
  bottom: 0;
  z-index: 20;
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  padding: var(--space-xs) 0;
  background: rgba(24,24,24,.92);
  border-top: 1px solid var(--line-dark);
  backdrop-filter: blur(12px);
}

.saved {
  background: var(--red);
  color: #fff;
  padding: 12px 16px;
  margin-bottom: var(--space-xs);
  font-size: 13px;
}

/* ============================================================
   DOWNLOADS
============================================================ */
.download-list {
  display: grid;
  gap: 0;
}

.download-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.download-row strong {
  display: block;
  font-size: 16px;
  font-weight: 500;
}

.download-row span {
  display: block;
  color: var(--body);
  font-size: 12px;
  margin-top: 5px;
}

.download-row.is-main-download {
  background: rgba(218,41,28,.12);
  border: 1px solid rgba(218,41,28,.55);
  padding: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.download-row.is-main-download strong {
  color: var(--ink);
}

/* ============================================================
   SERVER / ORGAN DASHBOARD
============================================================ */
body.organ-admin {
  background: var(--canvas);
}

.organ-wrap,
.server-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.hero-actions,
.server-actions,
.panel-actions {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  align-items: center;
}

.organ-kpi-grid,
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.organ-kpi,
.metric-card {
  min-height: 170px;
  display: grid;
  align-content: space-between;
}

.organ-kpi span,
.metric-card span {
  color: var(--body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.1px;
  text-transform: uppercase;
}

.organ-kpi strong,
.metric-card strong {
  display: block;
  color: var(--ink);
  font-size: clamp(40px, 5vw, 80px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -1.6px;
  margin-top: var(--space-xs);
}

.organ-kpi small,
.metric-card small {
  color: var(--body);
  font-size: 12px;
  line-height: 1.5;
}

.kpi-bar {
  height: 4px;
  background: var(--canvas);
  overflow: hidden;
  margin-top: var(--space-xs);
}

.kpi-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--red);
  transition: width .3s ease;
}

.kpi-bar i.warn {
  background: #f6e500;
}

.kpi-bar i.danger {
  background: var(--red);
}

.organ-main-grid,
.server-columns {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  align-items: flex-start;
  margin-bottom: var(--space-sm);
}

.organ-pre,
.card pre,
.cmd-row pre,
.organ-command-row pre {
  margin: 0;
  max-height: 440px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--canvas);
  color: var(--body);
  border: 1px solid var(--line-dark);
  border-radius: 0;
  padding: var(--space-sm);
  font-size: 13px;
  line-height: 1.55;
}

.organ-sites,
.sites-list {
  display: grid;
}

.organ-site-row,
.site-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto auto auto;
  gap: var(--space-xs);
  align-items: center;
  padding: var(--space-xs) 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.organ-site-row strong,
.site-row strong {
  display: block;
  color: var(--ink);
  font-weight: 500;
}

.organ-site-row span,
.site-row span {
  display: block;
  color: var(--body);
  font-size: 12px;
  margin-top: 4px;
}

.organ-site-row code,
.site-row code {
  color: var(--body);
  border: 1px solid var(--line-dark);
  padding: 6px 8px;
  font-size: 12px;
}

.organ-command-list,
.commands-list {
  display: grid;
  gap: var(--space-md);
}

.organ-command-group h3,
.cmd-group h3 {
  color: var(--ink);
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 var(--space-xs);
}

.organ-command-row,
.cmd-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.organ-command-row strong,
.cmd-row strong {
  display: block;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: var(--space-xxs);
}

.organ-toast {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: 999;
  background: var(--red);
  color: #fff;
  padding: 12px 16px;
  font-size: 13px;
  letter-spacing: .4px;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(10px);
  transition: .2s ease;
}

.organ-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   LOGIN
============================================================ */
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-md);
  background:
    linear-gradient(180deg, rgba(24,24,24,.12), rgba(24,24,24,.95)),
    radial-gradient(circle at 70% 10%, rgba(218,41,28,.34), transparent 32%),
    var(--canvas);
}

.login-box {
  width: min(460px, 100%);
  background: var(--canvas-elevated);
  border: 1px solid var(--line-dark);
  padding: var(--space-lg);
  color: var(--ink);
}

.login-box h1 {
  margin: 0 0 var(--space-xs);
  font-size: 56px;
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -1.12px;
}

.login-box p {
  color: var(--body);
  line-height: 1.6;
  margin: 0 0 var(--space-md);
}

.login-box form {
  display: grid;
  gap: var(--space-xs);
}

.alert {
  background: var(--red);
  color: #fff;
  padding: 12px 16px;
  margin-bottom: var(--space-xs);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: var(--space-sm);
    padding: var(--space-md);
  }

  .organ-kpi-grid,
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .organ-main-grid,
  .server-columns {
    grid-template-columns: 1fr;
  }

  .hero,
  .organ-hero {
    min-height: 360px;
  }

  .hero h1,
  .organ-hero h1 {
    font-size: 56px;
  }
}

@media (max-width: 768px) {
  .topbar,
  .organ-topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: var(--space-xs);
  }

  .topbar nav,
  .organ-nav {
    width: 100%;
    overflow-x: auto;
  }

  .topbar nav a,
  .organ-nav a {
    min-height: 44px;
    padding: 0 13px;
    white-space: nowrap;
  }

  .layout {
    grid-template-columns: 1fr;
    padding: var(--space-xs);
  }

  .organ-wrap,
  .server-wrap {
    padding: var(--space-xs);
  }

  .sidebar {
    position: relative;
    top: auto;
  }

  .hero,
  .organ-hero {
    min-height: 330px;
    padding: var(--space-xl) var(--space-sm) var(--space-sm);
  }

  .hero h1,
  .organ-hero h1 {
    font-size: 36px;
  }

  .organ-kpi-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .download-row,
  .organ-site-row,
  .site-row,
  .organ-command-row,
  .cmd-row,
  .panel-head {
    display: grid;
    grid-template-columns: 1fr;
  }

  .login-box h1 {
    font-size: 40px;
  }
}

@media (max-width: 480px) {
  button,
  .button,
  .organ-btn {
    min-height: 44px;
    padding: 0 var(--space-xs);
    font-size: 12px;
  }

  .card,
  .organ-panel,
  .metric-card,
  .organ-kpi,
  .login-box {
    padding: var(--space-sm);
  }

  textarea {
    min-height: 220px;
    font-size: 13px;
  }
}