/* ============================================
   BITCOIN 16:00 FIX ANALYZER — Light Theme
   ============================================ */

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

:root {
  --bg: #f6f8fc;
  --bg-card: #ffffff;
  --bg-soft: #eef2f8;
  --border: #e3e8f0;
  --border-strong: #cbd5e1;

  --text: #0f172a;
  --text-muted: #64748b;
  --text-soft: #94a3b8;

  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #eff6ff;

  --green: #10b981;
  --green-soft: #ecfdf5;
  --red: #ef4444;
  --red-soft: #fef2f2;
  --amber: #f59e0b;
  --amber-soft: #fffbeb;
  --violet: #7c3aed;
  --violet-soft: #f5f3ff;
  --bitcoin: #f7931a;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.05);
  --shadow: 0 6px 18px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* =============== HEADER =============== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo-symbol {
  font-size: 24px;
  color: var(--bitcoin);
  line-height: 1;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  display: inline-block;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover { background: var(--bg-soft); color: var(--text); }

.nav-links a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.datetime {
  color: var(--text-muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  padding: 6px 12px;
  background: var(--bg-soft);
  border-radius: 999px;
  white-space: nowrap;
}

/* =============== MAIN =============== */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 72px;
}

.page { display: none; }
.page.active { display: block; animation: pageIn 0.35s ease both; }

@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =============== HERO =============== */
.hero { text-align: center; padding: 20px 0 40px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}

.hero h1 {
  font-size: clamp(28px, 4.5vw, 46px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.1;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero h1 i { color: var(--bitcoin); }

.subtitle {
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 18px;
  line-height: 1.7;
}

.subtitle strong { color: var(--primary); font-weight: 600; }

.purpose {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 720px;
  padding: 12px 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-xs);
}

.purpose i { color: var(--primary); }
.purpose strong { color: var(--text); }

/* =============== STATS =============== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.icon-blue   { background: var(--primary-soft); color: var(--primary); }
.icon-amber  { background: var(--amber-soft);   color: var(--amber); }
.icon-violet { background: var(--violet-soft);  color: var(--violet); }

.stat-body { min-width: 0; }

.stat-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.stat-value {
  font-size: clamp(20px, 2.3vw, 26px);
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-unit { font-size: 12px; color: var(--text-soft); margin-top: 2px; }

/* =============== CURRENT PRICE =============== */
.current-price-card {
  background: linear-gradient(150deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  margin-bottom: 32px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.current-price-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 200px at 50% -60%, rgba(37, 99, 235, 0.10), transparent 70%);
  pointer-events: none;
}

.current-price-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-soft);
  color: #047857;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.live-dot {
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulse 1.8s ease-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.55); }
  100% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
}

.current-price-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.current-price {
  position: relative;
  font-size: clamp(38px, 6.5vw, 64px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
  margin: 10px 0 14px;
}

.price-meta {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}

.price-change {
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.price-change.positive { color: var(--green); background: var(--green-soft); }
.price-change.negative { color: var(--red);   background: var(--red-soft); }

.fix-info strong {
  color: var(--text);
  font-variant-numeric: tabular-nums;
  margin-left: 4px;
}

.fix-source {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  color: var(--text-soft);
  padding: 2px 8px;
  background: var(--bg-soft);
  border-radius: 999px;
}

/* =============== SECTIONS =============== */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section-title i { color: var(--primary); }

.section-desc { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.levels-section, .chart-section { margin-bottom: 36px; }

.levels-legend {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
  align-items: center;
}

.levels-legend span { display: inline-flex; align-items: center; gap: 6px; }

.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-fix { background: var(--primary); }
.dot-up  { background: var(--green); }
.dot-down{ background: var(--red); }

/* =============== LEVELS LADDER =============== */
.levels-ladder {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.level-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 15px 18px 15px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  overflow: hidden;
}

.level-item::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--border-strong);
}

.level-item.positive::before { background: var(--green); }
.level-item.negative::before { background: var(--red); }
.level-item.fix::before      { background: var(--primary); }

.level-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.level-item.fix {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-color: #bfdbfe;
  padding-top: 18px;
  padding-bottom: 18px;
}

.level-item.reached {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.12), var(--shadow-xs);
}

.level-item.reached::after {
  content: "◆";
  position: absolute;
  right: 10px; top: 8px;
  font-size: 10px;
  color: var(--amber);
}

.level-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.level-item.fix .level-label { color: var(--primary-dark); font-size: 14px; }

.level-price {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.level-item.positive .level-price { color: #047857; }
.level-item.negative .level-price { color: #b91c1c; }
.level-item.fix .level-price { color: var(--primary-dark); font-size: 20px; }

/* =============== CHART =============== */
.chart-container {
  position: relative;
  height: 420px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
}

/* =============== PAGE TITLE / CONTENT =============== */
.page-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-xs);
}

.content-card h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 26px 0 10px;
  letter-spacing: -0.01em;
}

.content-card h2:first-child { margin-top: 0; }
.content-card p { color: var(--text-muted); margin-bottom: 14px; font-size: 15px; }
.content-card ul { color: var(--text-muted); padding-left: 22px; margin-bottom: 14px; }
.content-card li { margin-bottom: 8px; }
.content-card strong { color: var(--text); font-weight: 600; }

.contact-intro { font-size: 15px !important; color: var(--text-muted); margin-bottom: 22px !important; }

/* =============== FAQ =============== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
  box-shadow: var(--shadow-xs);
}

.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: background 0.15s;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--bg-soft); }

.faq-item summary span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.faq-item summary i:first-child { color: var(--primary); }

.faq-chevron {
  color: var(--text-soft);
  font-size: 12px;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-chevron { transform: rotate(180deg); }

.faq-body {
  padding: 0 22px 20px 22px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* =============== CONTACT FORM =============== */
.contact-form { display: flex; flex-direction: column; gap: 16px; margin-bottom: 24px; }

.form-row { display: flex; flex-direction: column; gap: 6px; }

.form-row label { font-size: 13px; font-weight: 600; color: var(--text); }

.form-row input,
.form-row textarea {
  font-family: var(--font);
  font-size: 14px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--text);
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  outline: none;
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 12px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.28);
}

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

.form-status {
  font-size: 13px;
  color: var(--green);
  font-weight: 600;
  margin-top: 6px;
  min-height: 18px;
}

.contact-info { padding-top: 22px; border-top: 1px solid var(--border); }

.contact-info p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 14px;
}

.contact-info i { color: var(--primary); }

/* =============== FOOTER =============== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 44px 24px 24px;
}

.footer-content { max-width: 1200px; margin: 0 auto; }

.footer-section { margin-bottom: 32px; }

.footer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.footer-title i { color: var(--primary); }

.footer-section p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

.footer-section p strong { color: var(--text); font-weight: 600; }
.footer-section p em { color: var(--primary); font-style: italic; }

/* TECH STACK */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.tech-chip i { color: var(--primary); font-size: 14px; }
.tech-chip:hover { transform: translateY(-2px); border-color: var(--primary); }

.tech-chip:nth-child(1) i { color: #e34f26; }
.tech-chip:nth-child(2) i { color: #1572b6; }
.tech-chip:nth-child(3) i { color: #f7df1e; }
.tech-chip:nth-child(4) i { color: #ff6384; }
.tech-chip:nth-child(5) i { color: var(--bitcoin); }
.tech-chip:nth-child(6) i { color: var(--violet); }

/* DISCLAIMER */
.disclaimer {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  padding: 24px 26px;
}

.disclaimer h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9a3412;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.disclaimer h3 i { color: #ea580c; }

.disclaimer p {
  font-size: 12.5px;
  color: #7c2d12;
  line-height: 1.85;
  margin-bottom: 12px;
}

.disclaimer p:last-child { margin-bottom: 0; }

.disclaimer strong {
  color: #7c2d12;
  font-weight: 700;
}

.copyright {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-soft);
}

/* =============== RESPONSIVE =============== */
@media (max-width: 860px) {
  .stats-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-container { padding: 12px 16px; gap: 10px; }
  .nav-links { margin-left: 0; order: 3; width: 100%; overflow-x: auto; }
  .nav-links li { flex-shrink: 0; }
  .datetime { margin-left: auto; font-size: 12px; padding: 5px 10px; }

  main { padding: 22px 16px 56px; }
  .hero { padding: 8px 0 28px; }
  .current-price-card { padding: 24px 18px; }
  .price-meta { flex-direction: column; gap: 10px; }

  .content-card { padding: 22px; }
  .chart-container { height: 320px; padding: 12px; }
  .levels-legend { display: none; }
  .disclaimer { padding: 20px; }

  .copyright { flex-direction: column; text-align: center; }
}

@media (max-width: 420px) {
  .logo span:last-child { display: none; }
  .nav-links a { padding: 7px 11px; font-size: 13px; }
  .level-item.fix .level-price { font-size: 18px; }
  .hero h1 { gap: 6px; }
}