/* =========================================================
   Courtvisor — Design system
   ========================================================= */

:root {
  /* Colors */
  --lime:        #b8ff4f;
  --lime-dark:   #9be030;
  --ink:         #101828;
  --ink-soft:    #1B2436;
  --gray-600:    #566072;
  --gray-300:    #D5DAE2;
  --gray-100:    #F4F6FA;
  --white:       #FFFFFF;

  /* Type */
  --font-head: "Inter Tight", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  /* Spacing */
  --space-unit: 8px;
  --section-gap: clamp(80px, 10vw, 140px);
  --content-max: 1200px;
  --measure: 65ch;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 200ms;

  /* Radius / shadow */
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 60px -20px rgba(16, 24, 40, 0.25);
}

@media (prefers-reduced-motion: reduce) {
  :root { --dur: 0ms; }
}

/* =========================================================
   Reset
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--gray-600);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  font-family: var(--font-head);
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h1 { font-weight: 700; letter-spacing: -0.03em; }
h2 { font-weight: 700; font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-weight: 600; font-size: 1.15rem; }

p { margin: 0; }

a { color: inherit; text-decoration: none; }

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

ul { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--white);
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}
.section--dark :focus-visible,
.btn--lime:focus-visible {
  outline-color: var(--lime);
}

/* =========================================================
   Layout helpers
   ========================================================= */

.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.container--narrow {
  max-width: 800px;
}

.section {
  padding-block: var(--section-gap);
}

.section--dark {
  background: var(--ink);
  color: var(--gray-300);
}
.section--dark h2 { color: var(--white); }

.section-sub {
  color: var(--gray-600);
  max-width: var(--measure);
  margin-top: 16px;
}
.section--dark .section-sub { color: var(--gray-300); }

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  white-space: nowrap;
}

.btn--lime {
  background: var(--lime);
  color: var(--ink);
}
.btn--lime:hover {
  background: var(--lime-dark);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--gray-300);
}
.btn--outline:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.btn--sm { padding: 10px 20px; font-size: 0.875rem; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--ink);
  padding-block: 14px;
}
.link-arrow span {
  transition: transform var(--dur) var(--ease);
}
.link-arrow:hover span {
  transform: translateX(4px);
}

/* =========================================================
   Nav
   ========================================================= */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.nav.is-scrolled {
  border-bottom-color: var(--gray-300);
  box-shadow: 0 1px 0 rgba(16,24,40,0.02);
}

.nav__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 16px clamp(20px, 5vw, 40px);
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__logo { display: inline-flex; align-items: center; }

.nav__links {
  display: none;
  gap: 28px;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--ink);
}

.nav__actions {
  display: none;
  align-items: center;
  gap: 20px;
  margin-left: auto;
}

.nav__login {
  font-weight: 500;
  font-size: 0.925rem;
  color: var(--gray-600);
}
.nav__login:hover { color: var(--ink); }

.nav__toggle {
  margin-left: auto;
  width: 40px;
  height: 40px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px clamp(20px, 5vw, 40px) 24px;
  border-top: 1px solid var(--gray-300);
}
.nav__mobile.is-open { display: flex; }
.nav__mobile a {
  padding: 12px 0;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--gray-100);
}
.nav__mobile .btn { margin-top: 12px; text-align: center; }

@media (min-width: 900px) {
  .nav__links { display: flex; }
  .nav__actions { display: flex; }
  .nav__toggle { display: none; }
  .nav__mobile { display: none !important; }
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  padding-block: clamp(48px, 8vw, 96px) var(--section-gap);
  background: var(--white);
}

.hero__inner {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
  display: grid;
  gap: 48px;
}

.eyebrow {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lime-dark);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

.hero__sub {
  margin-top: 20px;
  font-size: 1.1rem;
  max-width: var(--measure);
  color: var(--gray-600);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: 32px;
}

.hero__fineprint {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* Before/after slider */
.ba-slider {
  position: relative;
}

.ba-slider__frame {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--gray-300);
}

.ba-slider__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-600);
}

.ba-slider__placeholder--before {
  background: linear-gradient(155deg, var(--gray-100), var(--white));
}

.ba-slider__placeholder--after {
  background: linear-gradient(155deg, #e8ffcf, var(--white));
  border-left: 2px solid var(--lime);
}

.ba-slider__divider {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lime);
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  box-shadow: 0 0 0 6px rgba(184, 255, 79, 0.25);
}

.ba-slider__input {
  appearance: none;
  width: 100%;
  height: 44px;
  margin: 16px 0 0;
  background: transparent;
  cursor: ew-resize;
}
.ba-slider__input::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--gray-300);
  border-radius: 999px;
}
.ba-slider__input::-webkit-slider-thumb {
  appearance: none;
  width: 28px;
  height: 28px;
  margin-top: -11px;
  border-radius: 50%;
  background: var(--lime);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-soft);
}
.ba-slider__input::-moz-range-track {
  height: 6px;
  background: var(--gray-300);
  border-radius: 999px;
}
.ba-slider__input::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--lime);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-soft);
}

.ba-slider__labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-top: 4px;
}

@media (min-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 64px;
  }
}

/* =========================================================
   Problem
   ========================================================= */

.problem h2 {
  max-width: 780px;
  margin-bottom: 56px;
}

.problem__grid {
  display: grid;
  gap: 32px;
}

.problem__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(184, 255, 79, 0.12);
  color: var(--lime);
  font-family: var(--font-head);
  font-weight: 700;
  margin-bottom: 20px;
}

.problem__quote {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--white);
  margin-bottom: 8px;
}

.problem__text {
  color: var(--gray-300);
}

@media (min-width: 700px) {
  .problem__grid { grid-template-columns: repeat(3, 1fr); }
}

/* =========================================================
   How it works
   ========================================================= */

.how-it-works h2 {
  max-width: 700px;
  margin-bottom: 56px;
}

.steps {
  display: grid;
  gap: 40px;
}

.steps__number {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--lime-dark);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.steps__item h3 { margin-bottom: 10px; }

@media (min-width: 700px) {
  .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

/* =========================================================
   Differentiation
   ========================================================= */

.differentiation h2 {
  max-width: 780px;
  margin-bottom: 48px;
}

.compare__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ink-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.compare__table th,
.compare__table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.compare__table th {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-300);
  background: rgba(255,255,255,0.03);
}

.compare__table th:last-child,
.compare__table td:last-child {
  color: var(--lime);
  font-weight: 500;
}

.compare__table tr:last-child td { border-bottom: none; }

.differentiation__note {
  margin-top: 32px;
  max-width: var(--measure);
  color: var(--gray-300);
}

/* =========================================================
   Features
   ========================================================= */

.features__grid {
  display: grid;
  gap: 24px;
}

.feature-card {
  padding: 32px;
  border-radius: var(--radius-md);
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.feature-card h3 { margin-bottom: 10px; }

@media (min-width: 700px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .features__grid { grid-template-columns: repeat(3, 1fr); }
}

/* =========================================================
   Pricing
   ========================================================= */

.pricing h2 { text-align: center; }
.pricing .section-sub { text-align: center; margin-inline: auto; }

.pricing__grid {
  display: grid;
  gap: 24px;
  margin-top: 56px;
}

.price-card {
  position: relative;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-300);
  background: var(--white);
  display: flex;
  flex-direction: column;
}

.price-card--featured {
  background: var(--ink);
  border-color: var(--ink);
  transform: scale(1.02);
  box-shadow: var(--shadow-soft);
}
.price-card--featured .price-card__name,
.price-card--featured .price-card__price,
.price-card--featured .price-card__features li {
  color: var(--white);
}
.price-card--featured .price-card__features li strong {
  color: var(--lime);
}

.price-card__badge {
  position: absolute;
  top: -14px;
  left: 32px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
}

.price-card__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
}

.price-card__price {
  margin-top: 16px;
  margin-bottom: 28px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-card__amount {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--ink);
}

.price-card__period {
  font-size: 1rem;
  color: var(--gray-600);
}

.price-card__features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
  font-size: 0.95rem;
}
.price-card__features li {
  padding-left: 24px;
  position: relative;
  color: var(--gray-600);
}
.price-card__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--lime);
}

.pricing__note {
  margin-top: 40px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--gray-600);
  max-width: 560px;
  margin-inline: auto;
}

@media (min-width: 900px) {
  .pricing__grid { grid-template-columns: repeat(3, 1fr); align-items: center; }
}

/* =========================================================
   FAQ
   ========================================================= */

.faq h2 {
  text-align: center;
  margin-bottom: 48px;
}

.accordion__item {
  border-bottom: 1px solid var(--gray-300);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  text-align: left;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.accordion__icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform var(--dur) var(--ease);
}
.accordion__icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.accordion__icon::after {
  width: 2px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur) var(--ease);
}
.accordion__panel > p {
  overflow: hidden;
  padding-bottom: 0;
  color: var(--gray-600);
  min-height: 0;
}
.accordion__panel > * { overflow: hidden; }
.accordion__item.is-open .accordion__panel {
  grid-template-rows: 1fr;
}
.accordion__item.is-open .accordion__panel > p {
  padding-bottom: 22px;
}

/* =========================================================
   Final CTA
   ========================================================= */

.final-cta {
  text-align: center;
}
.final-cta h2 {
  max-width: 700px;
  margin-inline: auto;
}
.final-cta p {
  margin-top: 16px;
  color: var(--gray-300);
  max-width: 500px;
  margin-inline: auto;
}
.final-cta .btn {
  margin-top: 32px;
}

/* =========================================================
   Footer
   ========================================================= */

.footer {
  background: var(--gray-100);
  padding-block: 64px 32px;
  font-size: 0.9rem;
}

.footer__inner {
  display: grid;
  gap: 40px;
}

.footer__brand p {
  margin-top: 16px;
  color: var(--gray-600);
  max-width: 32ch;
}
.footer__contact a:hover { color: var(--ink); }

.footer__heading {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__col a { color: var(--gray-600); }
.footer__col a:hover { color: var(--ink); }

.footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-300);
  color: var(--gray-600);
  font-size: 0.85rem;
}

@media (min-width: 700px) {
  .footer__inner {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}