/* LINEP brand UI — dark futuristic premium */

:root {
  --linep-pink: #FC2080;
  --linep-purple: #B514D2;
  --linep-deck-purple: #B109CF;
  --linep-cyan: #088CC6;
  --linep-bg: #140130;
  --linep-bg-secondary: #580B7B;
  --linep-container: #1D0640;
  --linep-white: #FFFFFF;
  --linep-light-gray: #E0E0E0;
  --linep-medium-gray: #808080;
  --linep-black: #000000;
}

body {
    font-family: 'Montserrat', Arial, sans-serif;
    min-height: 100vh;
    margin: 0;
    background-color: var(--linep-bg);
    color: var(--linep-light-gray);
}

/* Centered play area — keeps the menu perfectly centered on the viewport */
.game-stage {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 16px;
    box-sizing: border-box;
}

.container {
    text-align: center;
    background: var(--linep-container);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid rgba(252, 32, 128, 0.25);
    box-shadow: 0 4px 24px rgba(252, 32, 128, 0.15);
    max-width: 500px;
    width: 100%;
    color: var(--linep-light-gray);
}

.logo {
    width: 120px;
    height: auto;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 12px rgba(252, 32, 128, 0.4));
}

h1 {
    margin-top: 0;
    color: var(--linep-white);
    font-weight: 700;
    font-size: 2.25rem;
    letter-spacing: -0.5px;
}

h2, h3 {
    color: var(--linep-white);
    font-weight: 600;
}

p {
    color: var(--linep-light-gray);
}

a {
    color: var(--linep-pink);
    transition: color 0.2s, text-shadow 0.2s;
}

a:hover {
    color: var(--linep-purple);
    text-shadow: 0 0 8px rgba(252, 32, 128, 0.6);
}

button {
    padding: 12px 24px;
    font-size: 16px;
    font-family: 'Montserrat', Arial, sans-serif;
    background: linear-gradient(135deg, var(--linep-pink), var(--linep-purple));
    color: var(--linep-white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    transition: transform 0.1s, box-shadow 0.3s, filter 0.3s;
    box-shadow: 0 0 16px rgba(252, 32, 128, 0.3);
}

button:hover {
    transform: scale(1.02);
    box-shadow: 0 0 24px rgba(252, 32, 128, 0.5);
    filter: brightness(1.1);
}

button:disabled {
    opacity: .6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    filter: none;
}

button.secondary {
    background: transparent;
    color: var(--linep-pink);
    border: 1px solid var(--linep-pink);
    box-shadow: none;
}

button.secondary:hover {
    background: rgba(252, 32, 128, 0.1);
    box-shadow: 0 0 16px rgba(252, 32, 128, 0.3);
}

#copyBtn {
    padding: 5px 10px;
    font-size: 12px;
}

.scoreboard {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
    font-size: 18px;
    font-weight: bold;
}

.pname {
    font-weight: 500;
    color: var(--linep-pink);
    font-size: .8em;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 0 auto 20px;
    width: 100%;
    max-width: 305px;
}

.cell {
    aspect-ratio: 1;
    width: 100%;
    height: auto;
    background-color: var(--linep-container);
    border: 1px solid rgba(252, 32, 128, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: clamp(28px, 12vw, 50px);
    font-weight: bold;
    cursor: pointer;
    border-radius: 8px;
    transition: background-color 0.3s, transform 0.1s, box-shadow 0.3s;
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.4);
    touch-action: manipulation;
}

.cell:hover {
    background-color: var(--linep-bg-secondary);
    box-shadow: 0 0 16px rgba(252, 32, 128, 0.25);
}

.cell:focus-visible {
    outline: 3px solid var(--linep-pink);
    outline-offset: 2px;
}

.cell.x {
    color: var(--linep-pink);
    text-shadow: 0 0 16px rgba(252, 32, 128, 0.6);
}

.cell.o {
    color: var(--linep-cyan);
    text-shadow: 0 0 16px rgba(8, 140, 198, 0.5);
}

#statusMessage {
    font-weight: bold;
    color: var(--linep-pink);
    margin-bottom: 20px;
}

#shareLink {
    word-break: break-all;
    font-family: 'Montserrat', monospace;
    background: var(--linep-bg);
    color: var(--linep-light-gray);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--linep-pink);
}

/* Utility bar: sound toggle + language switcher */
#site-utils {
    background: transparent !important;
}

#sfx-toggle {
    background: var(--linep-container) !important;
    border: 1px solid rgba(252, 32, 128, 0.4) !important;
    box-shadow: 0 0 12px rgba(252, 32, 128, 0.2) !important;
    transition: box-shadow 0.2s, transform 0.1s;
}

#sfx-toggle:hover {
    box-shadow: 0 0 20px rgba(252, 32, 128, 0.5) !important;
    transform: scale(1.05);
}

#lang-switch {
    background: var(--linep-container) !important;
    border: 1px solid rgba(252, 32, 128, 0.4) !important;
    box-shadow: 0 0 12px rgba(252, 32, 128, 0.2) !important;
    font-family: 'Montserrat', Arial, sans-serif !important;
}

#lang-switch a {
    color: var(--linep-light-gray) !important;
    transition: color 0.2s, text-shadow 0.2s;
}

#lang-switch a[aria-current="true"] {
    color: var(--linep-white) !important;
    text-shadow: 0 0 8px rgba(252, 32, 128, 0.6);
}

#lang-switch a:hover {
    color: var(--linep-pink) !important;
    text-shadow: 0 0 8px rgba(252, 32, 128, 0.5);
}

/* Solo page link */
.solo-links a {
    color: var(--linep-pink);
    text-decoration: none;
    font-weight: 600;
}

.solo-links a:hover {
    text-shadow: 0 0 8px rgba(252, 32, 128, 0.6);
}

/* ── SEO / informational content (below the menu) ── */
.seo-content {
    border-top: 1px solid rgba(252, 32, 128, 0.2);
    background: rgba(29, 6, 64, 0.5);
    padding: 48px 20px 80px;
}
.seo-inner {
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.7;
    color: var(--linep-light-gray);
    text-align: left;
}
.seo-inner h2 {
    color: var(--linep-white);
    margin: 0 0 16px;
    font-size: 1.6rem;
}
.seo-inner .seo-h {
    color: var(--linep-pink);
    margin: 28px 0 10px;
    font-size: 1.05rem;
    letter-spacing: 0.5px;
}
.seo-inner p { margin: 0 0 14px; }
.seo-inner strong { color: var(--linep-white); }
.seo-list { margin: 0 0 8px 1.2em; padding: 0; }
.seo-list li { margin-bottom: 9px; }
.seo-faq h4 { color: var(--linep-pink); margin: 16px 0 4px; font-size: 1rem; }
.seo-faq p { color: var(--linep-light-gray); margin-bottom: 6px; }
@media (max-width: 600px) {
    .seo-content { padding: 36px 18px 80px; }
    .seo-inner h2 { font-size: 1.35rem; }
    .container { padding: 24px; }
    .logo { width: 96px; }
    h1 { font-size: 1.75rem; }
}

/* Account-linking widget (public/account.js) — deliberately no colors here,
   it inherits the page's own button/link/text styles so it reads as part
   of the site instead of a floating overlay. */
.hk-account-row {
    margin-top: 14px;
    font-size: .85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}
.hk-account-row button {
    padding: 5px 10px;
    font-size: .85rem;
}