/* ==========================================================================
   CogniBet™ — stylesheet
   Brand palette: charcoal bg · logo cyan-blue · logo gold
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */
:root {
  --bg:           #34373E;
  --card:         #3F434C;
  --card-hover:   #464B55;
  --blue:         #4AAEE0;
  --gold:         #F5C842;
  --white:        #FFFFFF;
  --dim:          #9BA0AC;
  --divider:      #52565F;
  --danger:       #E05A4A;

  --mkt-1x2:           #4AAEE0;
  --mkt-over-under:    #00C3A0;
  --mkt-btts:          #A76BE6;
  --mkt-double-chance: #F5C842;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;

  --shadow-card: 0 4px 24px rgba(0,0,0,.35);
  --shadow-glow-blue: 0 0 18px rgba(74,174,224,.25);
  --shadow-glow-gold: 0 0 18px rgba(245,200,66,.3);

  --font: 'Inter', system-ui, sans-serif;
  --transition: 180ms ease;
}

/* --------------------------------------------------------------------------
   Reset / base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--white);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

img { display: block; max-width: 100%; }

sup { font-size: .6em; vertical-align: super; }

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(52,55,62,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--divider);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  display: flex;
  gap: 4px;
  align-items: center;
}

.brand__mark-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
}
.brand__mark-dot:nth-child(2) { background: var(--gold); transform: translateY(-3px); }
.brand__mark-dot:nth-child(3) { background: var(--blue); opacity: .6; }

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.01em;
}

.brand__tagline {
  font-size: .65rem;
  color: var(--dim);
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* Nav */
.site-nav { display: flex; gap: 4px; }

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  color: var(--dim);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,.07);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Hero band
   -------------------------------------------------------------------------- */
.hero-band {
  background: linear-gradient(90deg, rgba(74,174,224,.12) 0%, rgba(245,200,66,.08) 100%);
  border-bottom: 1px solid var(--divider);
  padding: 10px 0;
}

.hero-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-band__text {
  font-size: .8rem;
  color: var(--dim);
}

.hero-band__link {
  font-size: .8rem;
  font-weight: 600;
  color: var(--blue);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Main / sections
   -------------------------------------------------------------------------- */
.site-main { padding: 48px 0 80px; }

.section { margin-bottom: 72px; }

.section-header { margin-bottom: 28px; }

.section-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.section-sub {
  font-size: .85rem;
  color: var(--dim);
}

/* --------------------------------------------------------------------------
   Tip cards grid
   -------------------------------------------------------------------------- */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
}

/* --------------------------------------------------------------------------
   Tip card
   -------------------------------------------------------------------------- */
.tip-card {
  position: relative;
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--divider);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: fadeSlideUp .4s ease both;
}

.tip-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), var(--shadow-glow-blue);
}

/* Stagger entrance per card index (set by JS via --i custom prop) */
.tip-card { animation-delay: calc(var(--i, 0) * 80ms); }

/* Left accent bar — colour set inline by JS */
.tip-card__accent {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.tip-card__body { padding: 18px 18px 16px 22px; }

.tip-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.tip-card__brand {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--blue);
}

.tip-card__league {
  font-size: .7rem;
  color: var(--dim);
  max-width: 55%;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tip-card__datetime {
  font-size: .7rem;
  color: var(--dim);
  margin-bottom: 10px;
}

.tip-card__match {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}

.tip-card__divider {
  border: none;
  border-top: 1px solid var(--divider);
  margin-bottom: 12px;
}

.tip-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.tip-card__market {
  font-size: .8rem;
  font-weight: 600;
}

.tip-card__odds {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold);
  white-space: nowrap;
}

/* Skeleton shimmer */
.tip-card--skeleton {
  min-height: 168px;
  border-color: transparent;
  overflow: hidden;
}

.tip-card--skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255,255,255,.0)  0%,
    rgba(255,255,255,.06) 50%,
    rgba(255,255,255,.0)  100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}

/* --------------------------------------------------------------------------
   Multi-bet builder
   -------------------------------------------------------------------------- */
.builder-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--divider);
  padding: 32px;
  box-shadow: var(--shadow-card);
  max-width: 680px;
}

.builder-step { margin-bottom: 24px; }

.builder-label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
}

/* Target odds buttons */
.target-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.target-btn {
  padding: 8px 20px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--divider);
  background: transparent;
  color: var(--dim);
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition),
              background var(--transition), box-shadow var(--transition);
}

.target-btn:hover {
  color: var(--white);
  border-color: var(--blue);
  background: rgba(74,174,224,.08);
}

.target-btn.selected {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(245,200,66,.1);
  box-shadow: var(--shadow-glow-gold);
}

/* Custom odds input */
.custom-odds-row { margin-top: 4px; }

.custom-input {
  padding: 9px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--divider);
  background: rgba(0,0,0,.2);
  color: var(--white);
  font-family: var(--font);
  font-size: .9rem;
  width: 100%;
  max-width: 220px;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: textfield;
}

.custom-input::placeholder { color: var(--dim); }

.custom-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(74,174,224,.15);
}

.custom-input.selected {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(245,200,66,.15);
}

/* Build button */
.build-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  border-radius: var(--radius-md);
  border: none;
  background: linear-gradient(135deg, var(--blue) 0%, #3a98cc 100%);
  color: var(--white);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  justify-content: center;
  transition: opacity var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 16px rgba(74,174,224,.3);
  margin-bottom: 28px;
}

.build-btn:hover:not(:disabled) {
  box-shadow: 0 6px 24px rgba(74,174,224,.45);
  transform: translateY(-1px);
}

.build-btn:disabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.build-btn.loading .build-btn__label { opacity: .7; }

/* Spinner (three bouncing dots) */
.build-btn__spinner {
  display: none;
  gap: 4px;
}

.build-btn.loading .build-btn__spinner { display: flex; }

.build-btn__spinner::before,
.build-btn__spinner::after,
.build-btn__spinner span {
  content: '';
  display: block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--white);
  animation: bounce 1s infinite;
}

.build-btn__spinner::after  { animation-delay: .15s; }

/* Multibet result */
.multibet-result { animation: fadeSlideUp .35s ease; }

.multibet-legs { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }

/* Leg card */
.leg-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(0,0,0,.18);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  border-left: 4px solid var(--blue);
  animation: fadeSlideUp .35s ease both;
}

.leg-card__info { flex: 1; min-width: 0; }

.leg-card__match {
  font-size: .9rem;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.leg-card__market {
  font-size: .75rem;
  color: var(--dim);
  margin-top: 2px;
}

.leg-card__odds {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
}

/* Combined odds total */
.multibet-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid var(--divider);
  padding-top: 16px;
  margin-bottom: 16px;
}

.multibet-total__label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--dim);
}

.multibet-total__odds {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: -.02em;
}

.multibet-disclaimer {
  font-size: .72rem;
  color: var(--dim);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Empty / error state
   -------------------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--dim);
}

.empty-state__icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 12px;
}

.empty-state p { font-size: .9rem; max-width: 360px; margin: 0 auto; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--divider);
  background: rgba(0,0,0,.2);
  padding: 32px 0 28px;
}

.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand__name {
  font-size: .95rem;
  font-weight: 800;
  color: var(--white);
}

.footer-brand__tagline {
  font-size: .72rem;
  color: var(--dim);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.footer-disclaimer {
  font-size: .75rem;
  color: var(--dim);
  max-width: 620px;
  margin-bottom: 10px;
  line-height: 1.6;
}

.footer-copy {
  font-size: .72rem;
  color: var(--divider);
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

@keyframes bounce {
  0%, 80%, 100% { transform: translateY(0); }
  40%           { transform: translateY(-5px); }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .site-header .container { height: 56px; }
  .brand__tagline { display: none; }
  .hero-band .container { flex-direction: column; align-items: flex-start; gap: 4px; }
  .builder-card { padding: 20px 16px; }
  .multibet-total__odds { font-size: 1.5rem; }
  .section-title { font-size: 1.2rem; }
  .tips-grid { grid-template-columns: 1fr; }
}