/*
  PolygoNN Esport Academy styles
  -----------------------------------------------------------------------------
  - Preserve existing color palette via CSS variables for consistent branding.
  - Mobile-first, responsive layout with modern CSS techniques (flex/grid).
  - Inline comments explain accessibility, SEO, and performance decisions.
*/

:root {
  /* Shared brand tokens aligned with the es-connect app palette */
  --brand-primary: #2563eb;
  --brand-primary-strong: #1d4ed8;
  --brand-accent: #7b2ff7;
  --brand-bg: #0b0e1c;
  --brand-surface: #0f172a;
  --brand-panel: #111827;
  --brand-border: #1f2937;
  --brand-text: #e2e8f0;
  --brand-muted: #94a3b8;
  --brand-shadow: 0 18px 50px rgba(10, 14, 26, 0.35);
  --brand-success: #22c55e;
  --brand-warning: #f59e0b;
  --brand-danger: #ef4444;
  --brand-radius-sm: 8px;
  --brand-radius-md: 12px;
  --brand-radius-lg: 18px;

  /* Backwards-compatible palette for existing styles */
  --color-bg: var(--brand-bg);
  --color-surface: var(--brand-surface);
  --color-surface-alt: rgba(17, 22, 42, 0.85);
  --color-highlight: #1d223b;
  --color-primary: var(--brand-primary);
  --color-primary-soft: rgba(37, 99, 235, 0.12);
  --color-secondary: var(--brand-accent);
  --color-text: var(--brand-text);
  --color-text-muted: var(--brand-muted);
  --color-border: rgba(148, 163, 184, 0.25);
  --color-success: #22c55e;
  --color-warning: #f97316;

  --font-family-base: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-family-heading: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container-max: 1240px;
  --container-gutter: clamp(1rem, 5vw, 2.5rem);
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: clamp(3rem, 5vw, 4rem);
  --space-2xl: clamp(4rem, 7vw, 5rem);

  --radius-sm: 0.75rem;
  --radius-md: var(--brand-radius-md);
  --radius-lg: var(--brand-radius-lg);
  --radius-pill: 999px;

  --shadow-soft: var(--brand-shadow);
  --shadow-card: 0 16px 40px rgba(12, 16, 30, 0.45);

  --transition-base: 200ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-padding-top: 5rem; /* Keeps anchor jumps below sticky header */
  overflow-wrap: break-word; /* Prevent long words from breaking layout */
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

h1,
h2,
h3 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-block: 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.85rem);
}

p {
  margin-block: 0;
}

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

dt {
  font-weight: 600;
}

dd {
  margin-inline: 0;
  margin-block: var(--space-2xs) var(--space-sm);
}

.container {
  width: min(
    var(--container-max),
    100%
  );
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}

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

.section--alt {
  background: linear-gradient(180deg, rgba(17, 22, 42, 0.92), rgba(17, 22, 42, 0.5));
}

.section--highlight {
  background: radial-gradient(circle at top right, rgba(123, 47, 247, 0.24), transparent 55%),
    var(--color-highlight);
}

.section__intro {
  color: var(--color-text-muted);
  margin-block-start: var(--space-xs);
  max-width: 60ch;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.85rem;
  color: var(--color-secondary);
  margin-bottom: var(--space-2xs);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: -100%;
  background: var(--color-primary);
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  z-index: 1000;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-sm);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  backdrop-filter: blur(12px);
  background: rgba(11, 14, 28, 0.85);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-xs);
  gap: var(--space-sm);
}

.brand img {
  display: block;
  width: clamp(7.5rem, 32vw, 9rem);
  height: auto;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
}

.nav-toggle:focus-visible,
.button:focus-visible,
.cta-link:focus-visible,
.social-link:focus-visible,
.text-link:focus-visible,
.footer__nav a:focus-visible,
.primary-nav a:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.primary-nav {
  position: fixed;
  inset: 0 auto auto 0;
  background: var(--color-surface);
  width: min(280px, 75vw);
  height: 100vh;
  padding: var(--space-lg) var(--space-md);
  transform: translateX(-110%);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-card);
}

.primary-nav ul {
  display: grid;
  gap: var(--space-sm);
  font-size: 1.05rem;
}

.primary-nav.is-open {
  transform: translateX(0);
}

.cta-link {
  display: inline-block;
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-text);
  font-weight: 600;
}

.header__social {
  display: none;
  gap: var(--space-xs);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.social-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.hero {
  padding-block-start: clamp(5rem, 8vw, 7rem);
  padding-block-end: var(--space-2xl);
  background: radial-gradient(circle at 20% 20%, rgba(123, 47, 247, 0.25), transparent 55%),
    radial-gradient(circle at 80% 0%, rgba(79, 70, 229, 0.18), transparent 60%),
    var(--color-bg);
}

.hero__inner {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.hero__subtitle {
  color: var(--color-text-muted);
  margin-block: var(--space-sm);
  max-width: 60ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-block: var(--space-sm);
}

.hero__highlights {
  display: grid;
  gap: var(--space-2xs);
  margin-block-start: var(--space-sm);
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.hero__highlights li::before {
  content: "•";
  color: var(--color-primary);
  margin-inline-end: var(--space-2xs);
}

.hero__media {
  position: relative;
  /* FIX: Contain the large blur effect from the ::after pseudo-element */
  overflow: hidden;
}

.hero__media::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -12%;
  height: 45%;
  background: linear-gradient(135deg, rgba(123, 47, 247, 0.35), rgba(79, 70, 229, 0.15));
  filter: blur(40px);
  z-index: -1;
  pointer-events: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.85rem 1.8rem;
  transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
  border: 1px solid transparent;
}

.button--primary {
  background: var(--color-primary);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.button[disabled],
.button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.button--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--color-primary);
}

.pillars {
  display: grid;
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
}

.pillar-card {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.about__inner {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.about__content {
  display: grid;
  gap: var(--space-sm);
}

/* FIX: Contain the large box-shadow from the child image */
.about__media {
  overflow: hidden;
  border-radius: var(--radius-md); /* Match image radius to clip shadow correctly */
}

.about__media img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.tracks {
  display: grid;
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
}

.track-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: var(--space-sm);
}

.track-card ul {
  display: grid;
  gap: var(--space-2xs);
  color: var(--color-text-muted);
}

.track-card li::before {
  content: "✔";
  color: var(--color-primary);
  margin-inline-end: var(--space-2xs);
}

.track-card__summary {
  color: var(--color-text-muted);
}

.badge {
  align-self: start;
  display: inline-flex;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
}

.badge--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.services {
  display: grid;
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: var(--space-sm);
}

.service-card--disabled {
  opacity: 0.6;
  position: relative;
}

.coach-carousel {
  position: relative;
}

.coach-grid {
  display: grid;
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
}

.coach-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  display: grid;
  gap: var(--space-sm);
  box-shadow: var(--shadow-card);
}

.coach-card img {
  border-radius: 50%;
  margin-inline: auto;
}

.carousel__controls {
  display: none;
}

.coach-carousel.is-scrollable .coach-grid {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-block-end: var(--space-sm);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.coach-carousel.is-scrollable .coach-grid::-webkit-scrollbar {
  display: none;
}

.coach-carousel.is-scrollable .coach-card {
  flex-shrink: 0;
  flex-basis: 90%;
  scroll-snap-align: center;
  max-width: 350px;
}

.coach-carousel.is-scrollable .carousel__controls {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.carousel__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.carousel__button:hover,
.carousel__button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-block-start: var(--space-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

th,
td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
}

tbody tr:last-of-type td,
tbody tr:last-of-type th {
  border-bottom: 0;
}

.testimonial-grid {
  display: grid;
  gap: var(--space-md);
  margin-block-start: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
  color: var(--color-text-muted);
  display: grid;
  gap: var(--space-xs);
  font-style: italic;
}

.testimonial-card figcaption {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text);
}

.pledge__inner {
  display: grid;
  gap: var(--space-lg);
}

.pledge-list {
  display: grid;
  gap: var(--space-sm);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
}

.pledge-list dt {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.pledge-list dd {
  margin: 0;
  color: var(--color-text-muted);
}

.pledge-list dt:not(:first-of-type) {
  margin-top: var(--space-md);
}

.contact__inner {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}

.contact__copy {
  display: grid;
  gap: var(--space-sm);
}

.contact__details {
  display: grid;
  gap: var(--space-2xs);
  color: var(--color-text-muted);
}

/* FIX: Contain the large box-shadow from the child image */
.contact__map {
  overflow: hidden;
  border-radius: var(--radius-md); /* Match image radius to clip shadow correctly */
}

.contact__map img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

/* Hide missing imagery and rebalance layout */
.hero__media,
.about__media,
.contact__map,
.coach-card img {
  display: none;
}

.hero__inner {
  grid-template-columns: 1fr !important;
}

.about__inner {
  grid-template-columns: 1fr !important;
}

.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  display: grid;
  gap: var(--space-sm);
  box-shadow: var(--shadow-card);
}

.form-field {
  display: grid;
  gap: var(--space-2xs);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font: inherit;
}

textarea {
  resize: vertical;
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--color-warning);
}

.form__note {
  min-height: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.site-footer {
  padding-block: var(--space-lg);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  gap: var(--space-lg);
}

.footer__brand {
  display: grid;
  gap: var(--space-2xs);
  color: var(--color-text-muted);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__social {
  display: flex;
  gap: var(--space-xs);
}

.footer__legal {
  display: grid;
  gap: var(--space-2xs);
  color: var(--color-text-muted);
}

.footer__legal nav {
  display: inline-flex;
  gap: var(--space-2xs);
  flex-wrap: wrap;
  align-items: center;
}

.footer__legal a {
  color: inherit;
}

.back-to-top {
  position: fixed;
  bottom: var(--space-sm);
  right: var(--space-sm);
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-strong, var(--shadow-card));
}

/* Small screens: tighten spacing for improved readability */
@media (max-width: 599px) {
  .section {
    padding-block: var(--space-lg);
  }

  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__cta .button {
    width: 100%;
  }

  /* START: Responsive table styles */
  .table-wrapper {
    border: none;
    overflow-x: hidden;
  }

  table {
    border: 0;
  }

  thead {
    border: none;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
  }

  tbody tr {
    display: block;
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
  }

  td {
    display: block;
    text-align: right;
    border-bottom: 1px solid var(--color-border);
  }

  tr th,
  td:last-child {
    border-bottom: 0;
  }

  th[scope="row"] {
    background-color: var(--color-highlight);
    font-weight: 700;
  }

  td::before {
    content: attr(data-label);
    float: left;
    font-weight: 600;
    text-align: left;
  }
  /* END: Responsive table styles */
}

/* Medium screens: unlock header social and refine grids */
@media (min-width: 720px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    transform: none;
    height: auto;
    width: auto;
    padding: 0;
    background: none;
    box-shadow: none;
  }

  .primary-nav ul {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.95rem;
  }

  .header__social {
    display: inline-flex;
  }

  .hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .pillars {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .services {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .coach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .coach-carousel.is-scrollable .coach-card {
    flex-basis: 45%;
  }

  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pledge__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .pledge-list {
    padding: var(--space-lg);
  }

  .contact__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

/* Large screens: adjust spacing and typography for readability */
@media (min-width: 1024px) {
  body {
    font-size: 1.05rem;
  }

  .section {
    padding-block: var(--space-2xl);
  }

  .hero__subtitle {
    font-size: 1.05rem;
  }

  .track-card,
  .service-card,
  .coach-card,
  .testimonial-card {
    padding: var(--space-lg);
  }
}

/* Extra-large screens: restore three- and four-column layouts */
@media (min-width: 1080px) {
  .tracks,
  .services,
  .testimonial-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .coach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .coach-carousel.is-scrollable .coach-card {
    flex-basis: 31%;
  }

  .footer__inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}