:root {
  --bg: #040b18;
  --bg-2: #081426;
  --panel: rgba(10, 19, 36, 0.88);
  --panel-2: rgba(15, 26, 45, 0.92);
  --panel-3: rgba(18, 33, 59, 0.9);
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(96,165,250,0.28);
  --text: #ecf2ff;
  --muted: #97a8c6;
  --accent: #60a5fa;
  --accent-2: #22c55e;
  --accent-3: #8b5cf6;
  --danger: #fb7185;
  --warning: #f59e0b;
  --shadow: 0 22px 60px rgba(0,0,0,0.34);
  --shadow-soft: 0 12px 30px rgba(0,0,0,0.22);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(139,92,246,0.12), transparent 28%),
    radial-gradient(circle at 50% 120%, rgba(34,197,94,0.08), transparent 36%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
}

body {
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(55px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  animation: orbFloat 16s ease-in-out infinite;
}

body::before {
  top: -80px;
  left: -90px;
  background: rgba(37,99,235,0.22);
}

body::after {
  right: -120px;
  bottom: 8vh;
  background: rgba(139,92,246,0.18);
  animation-duration: 20s;
}

.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 290px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid rgba(255,255,255,0.07);
  padding: 24px 18px;
  background:
    linear-gradient(180deg, rgba(16, 27, 50, 0.96), rgba(8, 17, 33, 0.92));
  backdrop-filter: blur(14px);
}

.sidebar::-webkit-scrollbar,
.main::-webkit-scrollbar { width: 10px; }
.sidebar::-webkit-scrollbar-thumb,
.main::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 24px;
}

.brand-badge {
  position: relative;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.04em;
  border-radius: 18px;
  background: linear-gradient(135deg, #2563eb, #22c55e 60%, #8b5cf6);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.brand-badge::after {
  content: '';
  position: absolute;
  inset: 1px;
  border-radius: 17px;
  background: linear-gradient(180deg, rgba(255,255,255,0.15), rgba(255,255,255,0));
  opacity: 0.7;
}

.brand h1 { margin: 0; font-size: 1.15rem; }
.brand p { margin: 4px 0 0; color: var(--muted); font-size: 0.9rem; }

.language-switch {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  margin-bottom: 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
}

.lang-btn,
.tabs button,
.primary-btn,
.secondary-btn {
  cursor: pointer;
  border: 1px solid var(--border);
  color: var(--text);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease, opacity 0.22s ease;
}

.lang-btn {
  min-width: 46px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}

.lang-btn:hover,
.tabs button:hover,
.primary-btn:hover,
.secondary-btn:hover {
  transform: translateY(-1px);
}

.lang-btn.active {
  background: linear-gradient(135deg, rgba(96,165,250,0.24), rgba(139,92,246,0.22));
  border-color: rgba(96,165,250,0.42);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), 0 10px 20px rgba(37,99,235,0.16);
}

.tabs {
  display: grid;
  gap: 10px;
}

.tabs button {
  position: relative;
  overflow: hidden;
  text-align: left;
  padding: 13px 14px;
  border-radius: 15px;
  font-size: 0.96rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}

.tabs button::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, #60a5fa, #8b5cf6);
  opacity: 0;
  transform: scaleY(0.2);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.tabs button::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(96,165,250,0.14), rgba(139,92,246,0.08), transparent 72%);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.tabs button.active {
  background: linear-gradient(135deg, rgba(96,165,250,0.18), rgba(139,92,246,0.14));
  border-color: rgba(96,165,250,0.4);
  box-shadow: 0 14px 30px rgba(5, 11, 27, 0.28), inset 0 1px 0 rgba(255,255,255,0.08);
}

.tabs button.active::before,
.tabs button.active::after,
.tabs button:hover::after {
  opacity: 1;
}

.tabs button.active::before { transform: scaleY(1); }

.sidebar-card {
  position: relative;
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.025));
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.sidebar-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(96,165,250,0.08), transparent 45%, rgba(34,197,94,0.08));
  pointer-events: none;
}

.sidebar-card h3 { margin-top: 0; margin-bottom: 8px; position: relative; z-index: 1; }
.sidebar-card p { color: var(--muted); margin-top: 0; position: relative; z-index: 1; }

.status-pill {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(34,197,94,0.12);
  color: #86efac;
  border: 1px solid rgba(34,197,94,0.3);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.07);
}

.status-pill::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 0 currentColor;
  animation: pulseDot 2s infinite;
}

.main {
  padding: 24px;
  overflow-y: auto;
}

.hero {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 20px;
  padding: 24px 24px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(15,26,45,0.84), rgba(8,17,33,0.72)),
    radial-gradient(circle at top right, rgba(37,99,235,0.16), transparent 28%),
    radial-gradient(circle at bottom left, rgba(34,197,94,0.12), transparent 26%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.05) 50%, transparent 70%);
  transform: translateX(-120%);
  animation: sheen 8s linear infinite;
  pointer-events: none;
}

.hero h2 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.25rem);
  letter-spacing: -0.03em;
}

.hero p { margin: 0; color: var(--muted); max-width: 900px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.chip {
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}

.panel {
  display: none;
  position: relative;
  padding: 22px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(14,24,43,0.96), rgba(7,15,28,0.92));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 100% 0%, rgba(37,99,235,0.08), transparent 20%),
    radial-gradient(circle at 0% 100%, rgba(34,197,94,0.07), transparent 18%);
  pointer-events: none;
}

.panel.active {
  display: block;
  animation: panelIn 0.38s cubic-bezier(.2,.8,.2,1);
}

.panel.is-switching {
  animation: panelSwitch 0.34s cubic-bezier(.2,.8,.2,1);
}

.panel + .panel { margin-top: 18px; }
.panel-header { position: relative; z-index: 1; margin-bottom: 18px; }
.panel-header h3 { margin: 0 0 6px; font-size: 1.28rem; }
.panel-header p { margin: 0; color: var(--muted); }

.form-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-grid.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid.four-up { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.action-field { justify-content: flex-end; }
label { font-size: 0.93rem; color: #dbeafe; }

input, select, textarea {
  width: 100%;
  border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.025));
  color: var(--text);
  padding: 13px 14px;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
  transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease, background 0.22s ease;
}

input::placeholder,
textarea::placeholder { color: #7f91b2; }

select {
  appearance: auto;
  background-color: #0f1a2d;
  color: #e8edf6;
}

select option {
  background: #0f1a2d;
  color: #e8edf6;
}

select option:checked {
  background: #2563eb;
  color: #ffffff;
}

textarea { resize: vertical; }

input:focus, select:focus, textarea:focus {
  border-color: rgba(96,165,250,0.42);
  box-shadow: 0 0 0 4px rgba(96,165,250,0.14), 0 8px 20px rgba(37,99,235,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.03));
}

.button-group,
.toolbar-row {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.primary-btn,
.secondary-btn {
  position: relative;
  overflow: hidden;
  padding: 12px 17px;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.primary-btn {
  background: linear-gradient(135deg, #2563eb, #22c55e);
  border-color: rgba(255,255,255,0.08);
  box-shadow: 0 14px 28px rgba(13, 60, 143, 0.26);
}

.primary-btn::after,
.secondary-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.18), transparent 65%);
  transform: translateX(-120%);
}

.primary-btn:hover::after,
.secondary-btn:hover::after {
  animation: buttonSheen 0.8s ease;
}

.secondary-btn {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
}

.primary-btn:hover,
.secondary-btn:hover {
  box-shadow: 0 14px 28px rgba(0,0,0,0.22);
}

.primary-btn:active,
.secondary-btn:active { transform: translateY(0); }

.result-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.result-card,
.metric-card,
.tools-card,
.note-box,
.error,
.loading {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.022));
  box-shadow: var(--shadow-soft);
}

.result-card,
.tools-card,
.note-box,
.error,
.loading { padding: 16px 18px; }

.result-card::before,
.metric-card::before,
.tools-card::before,
.note-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(96,165,250,0.06), transparent 40%, rgba(139,92,246,0.05));
  pointer-events: none;
}

.result-card h4,
.tools-card h4,
.metric-card h4 {
  margin: 0 0 12px;
  font-size: 1.02rem;
}

.metric-grid,
.summary-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.metric-card {
  padding: 15px 16px;
}

.metric-card strong,
.metric-card .metric-value {
  display: block;
  font-size: 1.95rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.metric-card p,
.metric-card span,
.result-card p,
.tools-card p,
.note-box p,
.kv-item strong,
.kv-item span,
.clean-list li,
.loading,
.error {
  position: relative;
  z-index: 1;
}

.metric-card p,
.result-card p,
.tools-card p,
.note-box p {
  color: var(--muted);
}

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

.kv-item {
  padding: 12px 13px;
  border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.028);
}

.kv-item strong {
  display: block;
  margin-bottom: 6px;
  color: #cfe0ff;
  font-size: 0.9rem;
}

.kv-item span { color: var(--text); }

.clean-list {
  margin: 0;
  padding-left: 20px;
}

.clean-list li {
  margin: 0 0 8px;
  color: #d8e3f8;
}

.error {
  border-color: rgba(251,113,133,0.22);
  background: linear-gradient(180deg, rgba(251,113,133,0.08), rgba(255,255,255,0.02));
  color: #fecdd3;
}

.loading {
  border-color: rgba(96,165,250,0.2);
  color: #dbeafe;
}

.loading::after {
  content: '';
  position: absolute;
  left: -35%;
  top: 0;
  width: 35%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  animation: loadingSweep 1.6s linear infinite;
}

.tools-list {
  display: grid;
  gap: 12px;
}

.tools-card {
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.tools-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.footer-note,
.muted,
.small-note {
  color: var(--muted);
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.992);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes panelSwitch {
  0% { opacity: 0.6; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes sheen {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(160%); }
}

@keyframes buttonSheen {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(160%); }
}

@keyframes loadingSweep {
  0% { left: -35%; }
  100% { left: 110%; }
}

@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(134,239,172,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(134,239,172,0); }
  100% { box-shadow: 0 0 0 0 rgba(134,239,172,0); }
}

@keyframes orbFloat {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(20px, -24px, 0); }
}

@media (max-width: 1180px) {
  .metric-grid,
  .summary-metrics,
  .form-grid.four-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .main { padding-top: 12px; }
  .hero { flex-direction: column; }
  .form-grid,
  .form-grid.three-up,
  .form-grid.four-up,
  .metric-grid,
  .summary-metrics { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}