:root {
  --brand: #14b8a6;
  --brand-strong: #0f766e;
  --brand-soft: rgba(20, 184, 166, .14);
  --radius: 8px;
  --shadow-soft: 0 18px 50px rgba(15, 23, 42, .12);
}

body,
.navbar,
.card,
.table,
.accordion,
footer,
.feature-card,
.telegram-cta {
  transition: background-color .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body.light-mode {
  --page-bg: #f7fafc;
  --surface: #ffffff;
  --surface-2: #eef4f7;
  --text: #17202a;
  --muted: #607080;
  --border: #dbe5ea;
  --link: #0f766e;
  background: var(--page-bg);
  color: var(--text);
}

body.dark-mode {
  --page-bg: #0f1419;
  --surface: #151b22;
  --surface-2: #1c2630;
  --text: #eef3f6;
  --muted: #a9b6c2;
  --border: #2b3742;
  --link: #5eead4;
  background: var(--page-bg);
  color: var(--text);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
}

.site-navbar {
  min-height: 68px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.site-brand {
  color: var(--text) !important;
  font-weight: 800;
  letter-spacing: 0;
}

.navbar-nav {
  gap: .25rem;
}

.navbar .nav-link {
  color: var(--muted) !important;
  border-radius: 999px;
  font-weight: 600;
  padding: .55rem .85rem;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--text) !important;
  background: var(--surface-2);
}

.navbar .nav-link.active {
  box-shadow: inset 0 0 0 1px var(--border);
}

.navbar-toggler {
  border-color: var(--border);
}

body.light-mode .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(23, 32, 42, 1)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

body.dark-mode .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(238, 243, 246, 1)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

.site-main {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: var(--surface);
  padding: 1.15rem 0;
}

.btn-brand {
  --bs-btn-bg: var(--brand);
  --bs-btn-border-color: var(--brand);
  --bs-btn-hover-bg: var(--brand-strong);
  --bs-btn-hover-border-color: var(--brand-strong);
  --bs-btn-color: #06201d;
  --bs-btn-hover-color: #ffffff;
  font-weight: 700;
}

.telegram-cta {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  max-width: min(100%, 560px);
  min-height: 76px;
  gap: .9rem;
  padding: .75rem .95rem .75rem .75rem;
  color: #ffffff;
  text-decoration: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .22), transparent 34%),
    linear-gradient(135deg, #2aabee 0%, #229ed9 52%, #14b8a6 100%);
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  box-shadow: 0 18px 40px rgba(34, 158, 217, .28), 0 8px 18px rgba(15, 23, 42, .16);
  transform: translateY(0);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  overflow: hidden;
}

.telegram-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(110deg, transparent 0 16%, rgba(255, 255, 255, .28) 16% 17%, transparent 17% 100%),
    linear-gradient(110deg, transparent 0 70%, rgba(255, 255, 255, .15) 70% 71%, transparent 71% 100%);
  opacity: .7;
}

.telegram-cta:hover,
.telegram-cta:focus {
  color: #ffffff;
  border-color: rgba(255, 255, 255, .45);
  box-shadow: 0 24px 54px rgba(34, 158, 217, .34), 0 12px 24px rgba(15, 23, 42, .22);
  transform: translateY(-2px);
}

.telegram-cta:focus-visible {
  outline: 3px solid color-mix(in srgb, #2aabee 60%, #ffffff);
  outline-offset: 4px;
}

.telegram-cta__icon,
.telegram-cta__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  color: #ffffff;
}

.telegram-cta__icon {
  width: 58px;
  height: 58px;
  background: rgba(255, 255, 255, .2);
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 50%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22);
}

.telegram-cta__icon svg {
  width: 31px;
  height: 31px;
  fill: currentColor;
  transform: translateX(-1px);
}

.telegram-cta__copy {
  display: grid;
  min-width: 0;
  gap: .18rem;
}

.telegram-cta__label {
  font-size: clamp(1.08rem, 2vw, 1.38rem);
  font-weight: 850;
  line-height: 1.15;
}

.telegram-cta__hint {
  color: rgba(255, 255, 255, .82);
  font-size: .88rem;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.telegram-cta__arrow {
  width: 38px;
  height: 38px;
  margin-left: .15rem;
  background: rgba(6, 32, 29, .14);
  border-radius: 50%;
}

.telegram-cta__arrow svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-soft,
.btn-mode {
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-weight: 700;
}

.btn-soft:hover,
.btn-mode:hover,
.btn-soft:focus,
.btn-mode:focus {
  color: var(--text);
  background: var(--brand-soft);
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
}

.home-hero {
  padding: 2.25rem 0 2.75rem;
}

.home-hero h1 {
  max-width: 780px;
  font-size: clamp(2.1rem, 4vw, 4.2rem);
  line-height: 1.08;
  font-weight: 850;
  letter-spacing: 0;
  margin: 0;
}

.home-hero .lead {
  max-width: 680px;
  color: var(--muted);
  margin-top: 1.25rem;
}

.eyebrow,
.feature-kicker {
  color: var(--brand);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.quick-links {
  padding: 1rem 0 2.5rem;
}

.tw-stock-hero {
  display: block;
  padding: 1rem 0 2.5rem;
}

.tw-stock-hero h2 {
  max-width: 760px;
  margin: 0;
  line-height: 1.2;
}

.tw-stock-hero .lead {
  max-width: 760px;
  margin-top: 1.2rem;
  color: var(--muted);
}

.tw-stock-hero__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.futures-tool-section {
  padding: 1.25rem 0 2.5rem;
}

.tw-stock-hero h2,
.futures-tool-section h2 {
  font-weight: 820;
  letter-spacing: 0;
}

.feature-card {
  display: flex;
  min-height: 178px;
  height: 100%;
  flex-direction: column;
  justify-content: space-between;
  gap: .8rem;
  padding: 1.2rem;
  color: var(--text);
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.feature-card:hover,
.feature-card:focus {
  color: var(--text);
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.feature-card strong {
  display: block;
  font-size: 1.1rem;
}

.feature-card span:last-child {
  color: var(--muted);
}

a:not(.btn):not(.btn-link):not(.feature-card):not(.telegram-cta) {
  color: var(--link);
}

a:not(.btn):not(.btn-link):not(.feature-card):not(.telegram-cta):hover {
  color: var(--brand);
}

.text-muted {
  color: var(--muted) !important;
}

.card,
.accordion-item,
.table {
  background-color: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.accordion {
  --bs-accordion-color: var(--text);
  --bs-accordion-bg: var(--surface);
  --bs-accordion-border-color: var(--border);
  --bs-accordion-btn-color: var(--text);
  --bs-accordion-btn-bg: var(--surface);
  --bs-accordion-active-bg: var(--surface-2);
  --bs-accordion-active-color: var(--text);
  --bs-accordion-btn-focus-box-shadow: 0 0 0 .25rem rgba(20, 184, 166, .18);
}

.bg-body-tertiary,
.bg-body-secondary {
  background-color: var(--surface-2) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

.form-control,
.form-select {
  background-color: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.form-control::placeholder {
  color: var(--muted);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 .2rem rgba(20, 184, 166, .18);
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--text);
  --bs-table-border-color: var(--border);
}

.table > :not(caption) > * > * {
  border-color: var(--border);
}

.table-hover tbody tr:hover {
  background-color: var(--surface-2);
}

code,
pre code {
  color: color-mix(in srgb, var(--brand) 70%, var(--text));
  background-color: transparent;
}

pre {
  background-color: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: .75rem;
  border-radius: var(--radius);
  overflow: auto;
}

@media (max-width: 991.98px) {
  .site-navbar .navbar-collapse {
    padding: .85rem 0 1rem;
  }

  .btn-mode {
    width: 100%;
    margin-top: .75rem;
  }

  .home-hero {
    padding-top: 1rem;
  }

  .telegram-cta {
    width: 100%;
    min-height: 72px;
  }

  .telegram-cta__hint {
    font-size: .8rem;
  }

  .tw-stock-hero {
    padding-top: 0;
  }
}