/* Warm Slate — CSS variables and font imports */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,700;1,9..144,400&family=Fira+Code:wght@400;500&family=Source+Sans+3:wght@400;600&display=swap');

:root {
  --color-bg:      #1C2B3A;
  --color-surface: #243447;
  --color-accent:  #C9A84C;
  --color-text:    #F2EDE4;
  --color-muted:   #8FA3B1;
  --color-up:      #4ADE80;
  --color-down:    #F87171;
  --color-border:  #2E4560;
  --font-display:  'Fraunces', serif;
  --font-mono:     'Fira Code', monospace;
  --font-body:     'Source Sans 3', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--color-bg); color: var(--color-text); font-family: var(--font-body); }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.anim-fade-up {
  opacity: 0;
  animation: fadeUp .6s cubic-bezier(.22,.61,.36,1) forwards;
}

/* ── Layout helpers ──────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Site header ─────────────────────────────────────────────── */
.site-header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -.01em;
  color: var(--color-text);
}
.wordmark-accent { color: var(--color-accent); }
.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav a {
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--color-muted);
  text-decoration: none;
  transition: color .2s;
}
.site-nav a:hover { color: var(--color-text); }
.nav-cta {
  color: var(--color-accent) !important;
  font-weight: 600;
}

/* ── Hero section ────────────────────────────────────────────── */
.hero-section {
  padding: 4rem 0 3rem;
  background:
    radial-gradient(ellipse 70% 50% at 60% 0%, rgba(201,168,76,.12) 0%, transparent 70%),
    linear-gradient(160deg, #1a2a3a 0%, #1c2b3a 60%, #1a2535 100%);
}
.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}
.hero-text { text-align: center; max-width: 560px; }
.hero-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1.08;
  letter-spacing: -.03em;
  color: var(--color-text);
  margin-bottom: .75rem;
}
.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.social-proof {
  font-size: .8rem;
  font-family: var(--font-body);
  color: var(--color-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ── Converter widget ────────────────────────────────────────── */
.widget-wrap { width: 100%; max-width: 420px; }
.converter-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 8px 40px rgba(0,0,0,.35);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.conv-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: .75rem 1rem;
}
.amount-input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-text);
  background: transparent;
  border: none;
  outline: none;
  min-width: 0;
  -moz-appearance: textfield;
}
.amount-input::-webkit-outer-spin-button,
.amount-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.result-display {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.result-display.populated { color: var(--color-text); }
.currency-select {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  color: var(--color-text);
  background: rgba(255,255,255,.06);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: .35rem .5rem;
  cursor: pointer;
  outline: none;
  max-width: 130px;
  appearance: none;
  -webkit-appearance: none;
  text-overflow: ellipsis;
}
.swap-btn {
  align-self: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #1c2b3a;
  font-size: 1.2rem;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 2px 12px rgba(201,168,76,.3);
}
.swap-btn:hover {
  transform: rotate(180deg) scale(1.08);
  box-shadow: 0 4px 20px rgba(201,168,76,.5);
}
.rate-line {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-muted);
  text-align: center;
  min-height: 1em;
}

/* ── Features section ────────────────────────────────────────── */
.features-section {
  padding: 4rem 0;
  background:
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(201,168,76,.07) 0%, transparent 60%),
    linear-gradient(180deg, #1c2b3a 0%, #1a2535 100%);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: -.02em;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1.5rem;
}
.feature-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: .6rem;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: .35rem;
}
.feature-card p { font-size: .9rem; color: var(--color-muted); line-height: 1.55; }

/* ── Pricing section ─────────────────────────────────────────── */
.pricing-section {
  padding: 4rem 0;
  background: radial-gradient(ellipse 60% 50% at 80% 50%, rgba(201,168,76,.1) 0%, transparent 65%),
              linear-gradient(180deg, #1a2535 0%, #1c2b3a 100%);
}
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 680px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.75rem;
  position: relative;
}
.pricing-card--premium {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), 0 8px 32px rgba(201,168,76,.18);
}
.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #1c2b3a;
  font-family: var(--font-body);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: .2rem .7rem;
  border-radius: 20px;
}
.plan-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: .35rem;
}
.plan-price {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.plan-price span {
  font-size: .9rem;
  color: var(--color-muted);
}
.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1.25rem;
}
.plan-features li { font-size: .9rem; color: var(--color-muted); }
.plan-features li::before { content: '✓ '; color: var(--color-accent); }
.btn-primary {
  display: block;
  text-align: center;
  background: var(--color-accent);
  color: #1c2b3a;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  padding: .75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s, box-shadow .15s;
}
.btn-primary:hover {
  opacity: .9;
  box-shadow: 0 4px 20px rgba(201,168,76,.4);
}

/* ── Site footer ─────────────────────────────────────────────── */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.footer-copy { font-size: .8rem; color: var(--color-muted); margin-top: .4rem; }

/* ── Widget actions row (swap + fav) ─────────────────────────── */
.widget-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.fav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color .15s, background .15s;
}
.fav-btn:hover { color: var(--color-accent); background: rgba(201,168,76,.12); }
.fav-btn--feedback { color: var(--color-accent); }

/* ── Searchable currency picker ──────────────────────────────── */
.currency-picker { position: relative; }
.picker-trigger {
  display: flex;
  align-items: center;
  gap: .3rem;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: .35rem .5rem;
  cursor: pointer;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  white-space: nowrap;
}
.picker-trigger:hover { background: rgba(255,255,255,.1); }
.picker-chevron { font-size: .65rem; color: var(--color-muted); }
.picker-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 100;
  width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  overflow: hidden;
}
.asset-tabs {
  display: flex;
  flex-direction: row;
  gap: .3rem;
  padding: .45rem .5rem;
  border-bottom: 1px solid var(--color-border);
}
.asset-tab {
  flex: 1;
  height: 28px;
  padding: 0 .4rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 600;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
  white-space: nowrap;
}
.asset-tab:hover { color: var(--color-text); background: rgba(255,255,255,.06); }
.asset-tab.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(201,168,76,.1);
}
.picker-search {
  width: 100%;
  padding: .6rem .75rem;
  background: rgba(255,255,255,.04);
  border: none;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: .85rem;
  outline: none;
}
.picker-search::placeholder { color: var(--color-muted); }
.picker-list {
  list-style: none;
  max-height: 320px;
  overflow-y: auto;
  margin: 0;
  padding: .3rem 0;
}
.picker-list li {
  padding: .45rem .75rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.picker-list li:hover { background: rgba(255,255,255,.06); color: var(--color-text); }
.picker-list li.active { color: var(--color-accent); }
.picker-list li[hidden] { display: none; }
.picker-list .picker-separator {
  padding: .25rem .75rem;
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-muted);
  opacity: .6;
  cursor: default;
  pointer-events: none;
  border-top: 1px solid var(--color-border);
  margin-top: .2rem;
}
.picker-list .picker-separator:first-child { border-top: none; margin-top: 0; }
.picker-list li.picker-item--focused {
  background: rgba(255,255,255,.08);
  color: var(--color-text);
  outline: none;
}
.picker-count {
  display: block;
  padding: .2rem .75rem;
  font-family: var(--font-body);
  font-size: .7rem;
  color: var(--color-muted);
  opacity: .75;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255,255,255,.02);
}

/* ── Favourites section ──────────────────────────────────────── */
.favourites-section {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
}
.fav-title {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  color: var(--color-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: .65rem;
}
.fav-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.fav-pill {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: .3rem .85rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.fav-pill:hover { background: rgba(201,168,76,.15); border-color: var(--color-accent); }

/* ── Historical chart section ────────────────────────────────── */
.chart-section {
  padding: 2.5rem 0 3rem;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(201,168,76,.07) 0%, transparent 70%),
    linear-gradient(180deg, #1a2535 0%, #1c2b3a 100%);
  margin-top: 0;
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1rem;
}
.chart-pair {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: .04em;
}
.range-pills {
  display: flex;
  align-items: center;
  gap: .4rem;
}
.range-pill {
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 500;
  color: var(--color-muted);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: .25rem .7rem;
  cursor: pointer;
  transition: color .15s, background .15s, border-color .15s;
}
.range-pill:hover {
  color: var(--color-text);
  background: rgba(255,255,255,.08);
}
.range-pill.active {
  color: var(--color-accent);
  background: rgba(201,168,76,.12);
  border-color: var(--color-accent);
}
.range-pill.premium-gate { color: var(--color-accent); }
.range-pill.premium-gate:hover {
  background: rgba(201,168,76,.15);
  border-color: var(--color-accent);
}
.chart-container {
  position: relative;
  width: 100%;
  height: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
}
.chart-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--color-muted);
}
.chart-empty {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--color-muted);
  text-align: center;
  padding: 2rem;
}
.chart-upgrade {
  margin-top: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  text-align: center;
}
.chart-upgrade p {
  font-size: .9rem;
  color: var(--color-muted);
  margin-bottom: .85rem;
  line-height: 1.5;
}
.chart-upgrade strong { color: var(--color-accent); }
.btn.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: #1c2b3a;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .9rem;
  padding: .6rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s, box-shadow .15s;
}
.btn.btn-primary:hover {
  opacity: .9;
  box-shadow: 0 4px 20px rgba(201,168,76,.4);
}

/* ── Auth form ───────────────────────────────────────────────── */
.auth-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 2rem 2rem 1.75rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 8px 40px rgba(0,0,0,.35);
}
.auth-field {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-bottom: 1rem;
}
.auth-field label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.auth-field input {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: .65rem .85rem;
  outline: none;
  transition: border-color .15s;
}
.auth-field input:focus { border-color: var(--color-accent); }
.auth-field input::placeholder { color: var(--color-muted); }
.auth-error {
  background: rgba(248,113,113,.12);
  border: 1px solid rgba(248,113,113,.35);
  border-radius: 8px;
  color: var(--color-down);
  font-size: .875rem;
  padding: .6rem .85rem;
  margin-bottom: 1rem;
}

/* ── Tier badge ──────────────────────────────────────────────── */
.tier-badge {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .2rem .65rem;
  border-radius: 20px;
}
.tier-badge--free {
  background: rgba(143,163,177,.15);
  color: var(--color-muted);
  border: 1px solid var(--color-border);
}
.tier-badge--premium {
  background: var(--color-accent);
  color: #1c2b3a;
  border: 1px solid var(--color-accent);
}

/* ── Feature comparison table ────────────────────────────────── */
.feature-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.feature-table th,
.feature-table td {
  padding: .75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.feature-table th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .85rem;
  color: var(--color-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.feature-table th:not(:first-child),
.feature-table td:not(:first-child) { text-align: center; }
.feature-table td:first-child { color: var(--color-text); }
.feature-table .check { color: var(--color-accent); font-weight: 600; }
.feature-table .cross { color: var(--color-muted); }
.feature-table .muted { color: var(--color-muted); }
.feature-table tbody tr:last-child td { border-bottom: none; }
.feature-table tbody tr:hover td { background: rgba(255,255,255,.025); }

/* ── Responsive: tablet up ───────────────────────────────────── */
@media (min-width: 600px) {
  .hero-inner { flex-direction: row; justify-content: space-between; text-align: left; }
  .hero-text   { text-align: left; }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid  { grid-template-columns: repeat(2, 1fr); }
  .chart-container { height: 280px; }
}

@media (min-width: 900px) {
  .hero-section { padding: 6rem 0 5rem; }
}