/**
 * Game Hub — main stylesheet
 * Built on tokens.css (design.json). Mobile-first.
 */

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

html {
  -webkit-text-size-adjust: 100%;
}

body.bg-hub,
body.page-template-room {
  margin: 0;
  font-family: var(--font-primary), var(--font-fallback);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

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

input,
select {
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  font-size: 16px;
  font-weight: var(--fw-medium);
  letter-spacing: normal;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

/* ----------------------------------------------------------------- Layout */
.bg-container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

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

/* --------------------------------------------------------------- Buttons */
.bg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  border: none;
  border-radius: var(--radius-pill);
  font-size: var(--fs-label);
  font-weight: var(--fw-semibold);
  line-height: 1;
  padding: 14px 24px;
  transition: background-color 0.18s ease, transform 0.08s ease, box-shadow 0.18s ease;
}

.bg-btn:active {
  transform: translateY(1px);
}

.bg-btn--primary {
  background-color: var(--accent-blue);
  color: var(--text-inverse);
}

.bg-btn--primary:hover {
  background-color: var(--accent-blue-hover);
}

.bg-btn--accent {
  background-color: var(--accent-orange);
  color: var(--text-inverse);
}

.bg-btn--accent:hover {
  filter: brightness(0.95);
}

.bg-btn--secondary {
  background-color: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.bg-btn--secondary:hover {
  background-color: var(--bg-surface);
}

.bg-btn--block {
  width: 100%;
}

.bg-btn--lg {
  padding: 18px 28px;
  font-size: 16px;
}

.bg-btn--sm {
  padding: 9px 16px;
  font-size: var(--fs-caption);
}

.bg-btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ------------------------------------------------------------------ Hero */
.bg-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  /* svh tracks the *small* mobile viewport so the block stays centered even
     with the browser UI bars visible. */
  min-height: 100svh;
  padding-block: clamp(40px, 8vw, 96px);
  overflow: hidden;
}

/* On phones, anchor the hero content to the bottom of the screen. */
@media (max-width: 559px) {
  .bg-hero {
    align-items: flex-end;
  }
}

.bg-hero__orb {
  position: absolute;
  inset-block-start: -20%;
  inset-inline-end: -10%;
  width: min(640px, 90vw);
  aspect-ratio: 1;
  background: var(--gradient-orb-soft);
  filter: blur(40px);
  opacity: 0.85;
  pointer-events: none;
  z-index: 0;
}

.bg-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.bg-eyebrow {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-block-end: var(--space-md);
}

.bg-hero__title {
  font-size: clamp(32px, 6vw, 52px);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
}

.bg-hero__subtitle {
  font-size: clamp(16px, 2.5vw, 19px);
  color: var(--text-secondary);
  margin: 0 0 var(--space-xl);
  max-width: 560px;
}

/* ---------------------------------------------------------- Join by code */
.bg-join {
  background-color: var(--bg-surface-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--space-lg);
  max-width: 560px;
}

.bg-join__label {
  display: block;
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  margin-block-end: var(--space-sm);
}

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

.bg-input {
  flex: 1 1 220px;
  min-width: 0;
  box-sizing: border-box;
  background-color: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 18px;
  font-weight: var(--fw-semibold);
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.bg-input::placeholder {
  color: var(--text-muted);
  font-weight: var(--fw-regular);
  letter-spacing: normal;
}

.bg-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(61, 107, 240, 0.18);
}

/* Smaller variant for compact forms (game controls, settings) */
.bg-input--sm {
  padding: 11px 16px;
  font-size: 15px;
  font-weight: var(--fw-medium);
  letter-spacing: normal;
}

/* Select: custom caret, no native chrome */
select.bg-input {
  padding-inline-end: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

select.bg-input::-ms-expand {
  display: none;
}

/* Remove number spinners */
.bg-input[type="number"] {
  -moz-appearance: textfield;
}

.bg-input[type="number"]::-webkit-outer-spin-button,
.bg-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Room-code field: distinctive "enter the code" look */
#bg-join-code {
  flex: 1 1 220px;
  text-align: center;
  text-transform: uppercase;
  font-size: 22px;
  font-weight: var(--fw-bold);
  letter-spacing: 0.32em;
  /* nudge so the centered text looks balanced despite the trailing tracking */
  padding-inline-start: calc(22px + 0.32em);
  font-variant-numeric: tabular-nums;
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  border-color: var(--border-default);
  caret-color: var(--accent-blue);
}

#bg-join-code::placeholder {
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 16px;
  font-weight: var(--fw-regular);
  vertical-align: middle;
}

#bg-join-code:focus {
  background-color: #fff;
}

.bg-join__error {
  display: none;
  margin-block-start: var(--space-sm);
  color: var(--accent-orange);
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
}

.bg-join__error.is-visible {
  display: block;
}

/* ------------------------------------------------------------ Game grid */
.bg-games__head {
  margin-block-end: var(--space-xl);
}

.bg-games__title {
  font-size: var(--fs-h1);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-xs);
}

.bg-games__lead {
  color: var(--text-secondary);
  margin: 0;
}

.bg-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns-mobile), 1fr);
  gap: var(--grid-gap);
}

@media (min-width: 640px) {
  .bg-grid {
    grid-template-columns: repeat(var(--grid-columns-tablet), 1fr);
  }
}

@media (min-width: 980px) {
  .bg-grid {
    grid-template-columns: repeat(var(--grid-columns-desktop), 1fr);
  }
}

/* ------------------------------------------------------------ Game card */
.bg-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.bg-card--active:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.bg-card__thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--gradient-orb-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.bg-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bg-card__thumb-mark {
  font-size: clamp(28px, 6vw, 44px);
  font-weight: var(--fw-bold);
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: -0.02em;
  text-align: center;
  padding: var(--space-md);
  z-index: 1;
}

.bg-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  flex: 1;
}

.bg-card__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  margin: 0;
}

.bg-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.bg-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
}

.bg-card__desc {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  margin: 0;
  flex: 1;
}

.bg-card__cta {
  margin-block-start: var(--space-sm);
}

/* Coming soon */
.bg-card--soon {
  filter: grayscale(0.1);
}

.bg-card--soon .bg-card__thumb {
  filter: blur(2px) saturate(0.85);
}

.bg-card__soon-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
  background-color: rgba(244, 241, 236, 0.55);
  backdrop-filter: blur(3px);
  z-index: 2;
}

.bg-card__soon-pill {
  background-color: var(--accent-navy);
  color: var(--text-inverse);
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: var(--fs-label);
  font-weight: var(--fw-semibold);
  box-shadow: var(--shadow-card);
}

/* --------------------------------------------------------------- Modal */
.bg-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background-color: rgba(31, 36, 48, 0.45);
  z-index: 1000;
}

.bg-modal.is-open {
  display: flex;
}

.bg-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-surface-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-floating);
  padding: var(--space-xl);
}

.bg-modal__close {
  position: absolute;
  inset-block-start: var(--space-md);
  inset-inline-end: var(--space-md);
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-circle);
  background-color: #fff;
  box-shadow: var(--shadow-soft);
  font-size: 18px;
  line-height: 1;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.bg-modal__eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-orange);
}

.bg-modal__title {
  font-size: var(--fs-h1);
  font-weight: var(--fw-semibold);
  margin: var(--space-xs) 0 var(--space-lg);
}

.bg-field {
  margin-block-end: var(--space-md);
}

.bg-field__label {
  display: block;
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  margin-block-end: var(--space-sm);
}

.bg-field .bg-input {
  width: 100%;
  font-size: 16px;
  letter-spacing: normal;
  font-weight: var(--fw-medium);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
}

.bg-modal__error {
  display: none;
  color: var(--accent-orange);
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  margin-block-end: var(--space-md);
}

.bg-modal__error.is-visible {
  display: block;
}

/* --------------------------------------------------------------- Footer */
.bg-foot {
  padding-block: var(--space-xl);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--fs-caption);
}

/* ----------------------------------------------------------- Room page */
.bg-room {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: var(--space-xxl);
}

.bg-room__card {
  background-color: var(--bg-surface-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--space-xxl) var(--space-xl);
  max-width: 480px;
}

.bg-room__code {
  font-size: clamp(32px, 8vw, 48px);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  color: var(--accent-blue);
  margin: var(--space-md) 0;
}

.bg-room__meta {
  color: var(--text-secondary);
  margin: 0 0 var(--space-lg);
}

.bg-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}