@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Barlow+Condensed:wght@400;600;700;900&family=Barlow:wght@400;500;600&display=swap');

:root {
  --bg: #0a0c0f;
  --bg2: #111418;
  --bg3: #181d24;
  --panel: #1a2030;
  --border: #2a3545;
  --accent: #f5a623;
  --accent2: #00c9a7;
  --accent3: #4a9eff;
  --danger: #ff4757;
  --text: #d4dce8;
  --text2: #8a9bb0;
  --text3: #556070;
  --mono: 'Share Tech Mono', monospace;
  --head: 'Barlow Condensed', sans-serif;
  --body: 'Barlow', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── HEADER ─────────────────────────────────────────── */
header {
  background: var(--bg2);
  border-bottom: 2px solid var(--accent);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.logo {
  font-family: var(--head);
  font-size: clamp(18px, 4vw, 22px);
  font-weight: 900;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo span { color: var(--text); }

.logo-icon {
  width: clamp(24px, 5vw, 32px); 
  height: clamp(24px, 5vw, 32px);
  background: var(--accent);
  display: flex; 
  align-items: center; 
  justify-content: center;
  font-size: clamp(14px, 3vw, 18px);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.header-status {
  font-family: var(--mono);
  font-size: clamp(9px, 2vw, 11px);
  color: var(--accent2);
  display: flex;
  align-items: center;
  gap: 4px;
}

.status-dot {
  width: 6px; 
  height: 6px;
  background: var(--accent2);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ─── LAYOUT ─────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: calc(100vh - 60px);
}

/* ─── SIDEBAR ────────────────────────────────────────── */
.sidebar {
  width: 240px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.nav-section { padding: 16px 0 8px; }

.nav-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0 16px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 3px solid transparent;
  font-size: 14px;
  color: var(--text2);
  font-weight: 500;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: var(--bg3); color: var(--accent); border-left-color: var(--accent); }

.nav-icon { font-size: 16px; width: 20px; text-align: center; }

/* ─── CONTENT ────────────────────────────────────────── */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}
.content::-webkit-scrollbar { width: 6px; }
.content::-webkit-scrollbar-track { background: transparent; }
.content::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.page { display: none; }
.page.active { display: block; }

/* ─── PAGE HEADER ────────────────────────────────────── */
.page-header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-title {
  font-family: var(--head);
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
}
.page-title span { color: var(--accent); }

.page-badge {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent2);
  background: rgba(0, 201, 167, 0.1);
  border: 1px solid rgba(0, 201, 167, 0.3);
  padding: 4px 10px;
  letter-spacing: 1px;
}

/* ─── GRID ───────────────────────────────────────────── */
.content-grid {
  padding: 24px 32px;
  display: grid;
  gap: 20px;
}
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }

/* ─── CARDS ──────────────────────────────────────────── */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
}
.card.blue::before { background: var(--accent3); }
.card.green::before { background: var(--accent2); }
.card.red::before { background: var(--danger); }

.card-title {
  font-family: var(--head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.card.blue .card-title { color: var(--accent3); }
.card.green .card-title { color: var(--accent2); }
.card.red .card-title { color: var(--danger); }

/* ─── TABLE ──────────────────────────────────────────── */
.param-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.param-table th {
  background: rgba(255,255,255,0.04);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text3);
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.param-table td {
  padding: 8px 12px;
  border-bottom: 1px solid rgba(42,53,69,0.5);
  color: var(--text2);
  vertical-align: top;
}
.param-table tr:hover td { background: rgba(255,255,255,0.02); }
.param-table td:first-child {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
}
.param-table td:nth-child(2) { color: var(--text); }

/* ─── TAGS ───────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 7px;
  border: 1px solid;
  letter-spacing: 0.5px;
}
.tag-warn   { color: var(--accent);  border-color: var(--accent);  background: rgba(245,166,35,0.08); }
.tag-ok     { color: var(--accent2); border-color: var(--accent2); background: rgba(0,201,167,0.08); }
.tag-info   { color: var(--accent3); border-color: var(--accent3); background: rgba(74,158,255,0.08); }
.tag-danger { color: var(--danger);  border-color: var(--danger);  background: rgba(255,71,87,0.08); }

/* ─── CODE BLOCK ─────────────────────────────────────── */
.code-block {
  background: #0d1117;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent3);
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent2);
  line-height: 1.8;
  overflow-x: auto;
  margin: 8px 0;
}
.code-comment { color: var(--text3); }
.code-key     { color: var(--accent); }
.code-val     { color: #a8d8a8; }
.code-func    { color: var(--accent3); }

/* ─── SENSOR CARDS ───────────────────────────────────── */
.sensor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  padding: 24px 32px;
}
.sensor-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 18px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.sensor-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.sensor-icon   { font-size: 32px; margin-bottom: 10px; }
.sensor-name   { font-family: var(--head); font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text); margin-bottom: 4px; }
.sensor-type   { font-family: var(--mono); font-size: 10px; color: var(--accent); letter-spacing: 1px; margin-bottom: 8px; }
.sensor-desc   { font-size: 12px; color: var(--text2); line-height: 1.5; }

/* ─── CALCULATOR ─────────────────────────────────────── */
.calc-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 24px;
}
.calc-title {
  font-family: var(--head);
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.form-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }
select.form-input option { background: var(--bg2); }

.calc-btn {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 10px 24px;
  font-family: var(--head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 8px;
}
.calc-btn:hover { background: #ffc04a; }

.calc-result {
  margin-top: 16px;
  background: var(--bg);
  border: 1px solid var(--accent2);
  padding: 16px;
  font-family: var(--mono);
  display: none;
}
.calc-result.show { display: block; }

.result-value { font-size: 28px; color: var(--accent2); font-weight: bold; }
.result-label { font-size: 11px; color: var(--text3); letter-spacing: 1px; margin-top: 4px; }

/* ─── DIAGRAM ────────────────────────────────────────── */
.diagram-box {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text2);
  line-height: 2.2;
  letter-spacing: 0.5px;
}
.diagram-line { color: var(--accent); }

/* ─── ALERT ──────────────────────────────────────────── */
.alert {
  border-left: 4px solid;
  padding: 12px 16px;
  font-size: 13px;
  margin: 8px 0;
  line-height: 1.5;
}
.alert-warn   { border-color: var(--accent);  background: rgba(245,166,35,0.06); color: #e0b96a; }
.alert-danger { border-color: var(--danger);  background: rgba(255,71,87,0.06);  color: #ff8a94; }
.alert-info   { border-color: var(--accent3); background: rgba(74,158,255,0.06); color: #7dbfff; }
.alert strong { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; }

/* ─── SECTION DIVIDER ────────────────────────────────── */
.section-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0 16px;
}
.section-divider-label {
  font-family: var(--head);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text2);
  white-space: nowrap;
}
.section-divider-line { flex: 1; height: 1px; background: var(--border); }

/* ─── HOME ───────────────────────────────────────────── */
.home-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 24px 32px;
}
.home-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 24px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 20px;
}
.home-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(245,166,35,0.08);
}
.home-card-icon { font-size: 40px; flex-shrink: 0; filter: grayscale(0.3); }
.home-card-info h3 {
  font-family: var(--head);
  font-size: 22px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 6px;
}
.home-card-info p { font-size: 13px; color: var(--text2); line-height: 1.5; }
.home-card-count {
  position: absolute;
  top: 12px; right: 12px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  background: rgba(245,166,35,0.1);
  border: 1px solid rgba(245,166,35,0.2);
  padding: 2px 8px;
}

.morse-line {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 3px;
  padding: 8px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  overflow: hidden;
  white-space: nowrap;
}

/* ─── INVERSOR TABS ──────────────────────────────────── */
.inv-tab {
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text3);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
}
.inv-tab:hover { color: var(--text); border-bottom-color: var(--border); }
.inv-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ─── BOTTOM NAV (mobile) ────────────────────────────── */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; 
  left: 0; 
  right: 0;
  background: var(--bg2);
  border-top: 2px solid var(--accent);
  z-index: 200;
  height: 62px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}
.bottom-nav::-webkit-scrollbar { display: none; }

.bottom-nav-inner {
  display: flex;
  align-items: stretch;
  min-width: max-content;
  height: 100%;
}
.bn-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 0 12px;
  cursor: pointer;
  color: var(--text3);
  transition: all 0.15s;
  border-top: 3px solid transparent;
  min-width: 56px;
  flex: 1;
}
.bn-item.active { 
  color: var(--accent); 
  border-top-color: var(--accent); 
  background: rgba(245,166,35,0.06); 
}
.bn-item:hover  { color: var(--text); }
.bn-icon  { font-size: 20px; line-height: 1; }
.bn-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  header { padding: 0 12px; }
  .content-grid { padding: 20px 24px; }
}

@media (max-width: 768px) {
  header { padding: 0 12px; }
  
  .logo { gap: 6px; }
  
  .sidebar { display: none; }
  .bottom-nav { display: block; }
  
  .app-layout { 
    flex-direction: column; 
    min-height: calc(100vh - 122px); 
  }
  
  .content { padding-bottom: 72px; }
  
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .home-grid { 
    grid-template-columns: 1fr; 
    padding: 16px 20px; 
    gap: 20px;
  }
  .content-grid { padding: 20px 16px; }
  .sensor-grid { padding: 16px 20px; }
  
  .page-header { 
    padding: 20px 16px; 
    flex-direction: column; 
    align-items: flex-start; 
    gap: 12px;
  }
  
  .page-title { font-size: 24px; }
  .page-badge { font-size: 9px; padding: 3px 8px; }
  
  .inv-tab { padding: 8px 12px; font-size: 10px; }
}

@media (max-width: 480px) {
  header {
    padding: 0 8px;
    height: 56px;
  }
  
  .app-layout { min-height: calc(100vh - 118px); }
  .content { padding-bottom: 68px; }
  
  .content-grid, .home-grid, .sensor-grid { padding: 16px 12px; }
  .page-header { padding: 16px 12px; }
  
  .page-title { font-size: 20px; }
  
  .logo-icon {
    width: 24px;
    height: 24px;
    font-size: 14px;
  }
  
  .header-status {
    font-size: 9px;
    gap: 3px;
  }
  
  .status-dot {
    width: 5px;
    height: 5px;
  }
  
  .bottom-nav { height: 58px; }
  .bn-item { padding: 0 8px; min-width: 52px; }
  .bn-icon { font-size: 18px; }
  .bn-label { font-size: 8px; }
}