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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #e2e8f0;
  min-height: 100vh;
  padding: max(2rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(2rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}

.app {
  max-width: 960px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: -0.02em;
}

.subtitle {
  color: #94a3b8;
  margin-top: 0.5rem;
  font-size: 1.05rem;
}

section {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

h2 {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
  color: #f1f5f9;
  font-weight: 600;
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.75rem;
  color: #cbd5e1;
  font-weight: 600;
}

/* Live price card */
.live-data .price-card {
  text-align: center;
  padding: 0.5rem;
}

.price-card .label {
  display: block;
  color: #94a3b8;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.price-card .value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #10b981;
}

.price-card .meta {
  display: block;
  color: #64748b;
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

/* Inputs */
.field {
  margin-bottom: 1.25rem;
}

.field label {
  display: block;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.field input[type="number"] {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 8px;
  color: #f1f5f9;
  font-size: 1rem;
  transition: border-color 0.15s;
}

.field input[type="number"]:focus {
  outline: none;
  border-color: #10b981;
}

.field .hint {
  display: block;
  color: #64748b;
  font-size: 0.82rem;
  margin-top: 0.35rem;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.slider-row input[type="range"] {
  flex: 1;
  accent-color: #10b981;
}

.slider-row span {
  font-size: 0.85rem;
  color: #94a3b8;
  min-width: 60px;
}

.slider-row span:last-child {
  text-align: right;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 600px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

/* Advanced collapsible */
.advanced {
  margin-top: 1rem;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.advanced summary {
  cursor: pointer;
  color: #94a3b8;
  font-weight: 500;
  padding: 0.25rem 0;
}

.advanced summary:hover {
  color: #cbd5e1;
}

.advanced[open] summary {
  margin-bottom: 1rem;
}

/* Results */
.headline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (max-width: 700px) {
  .headline {
    grid-template-columns: 1fr;
  }
}

.headline-card {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
}

.headline-card.highlight {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.05));
  border-color: rgba(16, 185, 129, 0.4);
}

.headline-card .label {
  display: block;
  color: #94a3b8;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.headline-card .value {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: #f1f5f9;
}

.headline-card.highlight .value {
  color: #10b981;
}

.headline-card .meta {
  display: block;
  color: #64748b;
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

/* Table */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th, td {
  padding: 0.75rem 0.6rem;
  text-align: right;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

th {
  color: #94a3b8;
  font-weight: 500;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

th:first-child, td:first-child {
  text-align: left;
}

tbody tr.your-mix {
  background: rgba(16, 185, 129, 0.08);
}

tbody tr.your-mix td {
  font-weight: 600;
  color: #f1f5f9;
}

/* Verdict */
.verdict {
  margin-top: 1.75rem;
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  line-height: 1.6;
}

.verdict.good {
  background: rgba(16, 185, 129, 0.1);
  border-left: 4px solid #10b981;
  color: #d1fae5;
}

.verdict.bad {
  background: rgba(239, 68, 68, 0.1);
  border-left: 4px solid #ef4444;
  color: #fecaca;
}

.verdict.neutral {
  background: rgba(234, 179, 8, 0.1);
  border-left: 4px solid #eab308;
  color: #fef3c7;
}

.verdict strong {
  color: inherit;
  display: block;
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

/* Caveats */
.caveats {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.15);
}

.caveats ul {
  list-style: none;
  margin-top: 0.5rem;
}

.caveats li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
  color: #cbd5e1;
  font-size: 0.92rem;
}

.caveats li::before {
  content: "•";
  position: absolute;
  left: 0.5rem;
  color: #64748b;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 2rem;
  padding-bottom: 1rem;
  color: #64748b;
  font-size: 0.82rem;
}

footer a {
  color: #94a3b8;
  text-decoration: none;
}

footer a:hover {
  color: #10b981;
  text-decoration: underline;
}