:root {
  --bg: #0a0f1c; --surface: #111a2e; --surface-2: #16223b; --line: #243350;
  --text: #f4f7fb; --muted: #9fb0cc; --blue: #3b82f6; --cyan: #22d3ee; --danger: #ff7b8a;
  --grad: linear-gradient(135deg, var(--cyan), var(--blue));
  --radius: 14px;
  --font-head: 'Sora', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 400 1rem/1.65 var(--font-body);
  background-image: radial-gradient(900px 500px at 85% -5%, rgba(59,130,246,.18), transparent 60%),
                    radial-gradient(700px 400px at -5% 30%, rgba(34,211,238,.08), transparent 60%);
  background-attachment: fixed;
}
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; margin: 0 0 .6em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.6rem, 7vw, 4.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; color: var(--muted); max-width: 62ch; }
a { color: var(--cyan); }
ul { list-style: none; margin: 0; padding: 0; }
.container { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }
.container--narrow { width: min(720px, 100% - 2.5rem); }
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section--alt { background: linear-gradient(180deg, rgba(17,26,46,.7), rgba(17,26,46,.2)); border-block: 1px solid var(--line); }
.section__sub, .lead { font-size: 1.1rem; }
.lead { color: #c5d2e8; }
.skip-link { position: absolute; left: 1rem; top: -4rem; background: var(--cyan); color: #04101c; padding: .6rem 1rem; border-radius: 8px; z-index: 100; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .trace { stroke-dashoffset: 0 !important; } .nodes { opacity: 1 !important; }
}
/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; padding: .8rem 1.4rem; border-radius: 10px; border: 1px solid transparent; font: 600 1rem var(--font-body); text-decoration: none; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s, border-color .2s; }
.btn--primary { background: var(--grad); color: #04101c; box-shadow: 0 6px 24px rgba(34,211,238,.22); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 8px 30px rgba(34,211,238,.34); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--cyan); background: rgba(34,211,238,.06); }
.btn--sm { padding: .55rem 1.1rem; font-size: .95rem; }
.btn--lg { padding: 1rem 1.8rem; font-size: 1.05rem; }
.btn:disabled { opacity: .7; cursor: not-allowed; transform: none; }
.spinner { display: none; width: 1rem; height: 1rem; border: 2.5px solid rgba(4,16,28,.3); border-top-color: #04101c; border-radius: 50%; animation: spin .7s linear infinite; }
.is-loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }


.badge--solid { background: var(--grad); color: #fff; border-color: transparent; font-weight: 600; }
.badge--solid .dot { background: #fff; box-shadow: none; }

.badge--square { border-radius: 6px; font-family: ui-monospace, Consolas, monospace; font-size: .85rem; letter-spacing: .02em; }

.badge--outline { background: transparent; border-color: var(--cyan); color: var(--cyan); font-weight: 500; }

/* حالة التسجيل */
.badge--open { color: #166534; background: #ecfdf3; border-color: #86efac; }
.badge--open .dot { background: #16a34a; box-shadow: 0 0 8px rgba(22,163,74,.6); }

.badge--closed { color: #991b1b; background: #fef2f2; border-color: #fca5a5; }
.badge--closed .dot { background: #dc2626; box-shadow: 0 0 8px rgba(220,38,38,.6); }

/* Navbar */
.navbar { position: sticky; top: 0; z-index: 50; background: rgba(10,15,28,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.navbar__inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; }
.logo { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--text); font: 800 1.35rem var(--font-head); }

.logo img {
  width: 80px;
  height:80px;
  object-fit: contain; 
  flex: none;
}
.logo span { display: flex; flex-direction: column; line-height: 1.05; }
.logo small { font: 500 .7rem var(--font-body); color: var(--muted); }
.navbar__menu { display: flex; align-items: center; gap: 1.75rem; }
.navbar__menu ul { display: flex; gap: 1.5rem; }
.navbar__menu li a { color: var(--muted); text-decoration: none; font-weight: 500; transition: color .2s; }
.navbar__menu li a:hover { color: var(--text); }
.navbar__toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; width: 44px; height: 44px; padding: 0; cursor: pointer; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.navbar__toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
.navbar__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.navbar__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 760px) {
  .navbar__toggle { display: flex; }
  .navbar__menu { position: absolute; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 1rem; padding: 1.25rem; background: var(--surface); border-bottom: 1px solid var(--line); display: none; }
  .navbar__menu.is-open { display: flex; }
  .navbar__menu ul { flex-direction: column; gap: 0; }
  .navbar__menu li a { display: block; padding: .8rem 0; font-size: 1.05rem; }
  .navbar__menu .btn { width: 100%; }
}

/* Hero (the circuit is the one memorable element) */
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 4rem); }
.hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center; }
.hero h1 { background: linear-gradient(180deg, #fff 40%, #a5c8ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 1.75rem; }
.badge { display: inline-flex; align-items: center; gap: .55rem; padding: .35rem .9rem; border: 1px solid var(--line); border-radius: 99px; font-size: .9rem; color: #c5d2e8; background: rgba(17,26,46,.7); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.circuit { width: 100%; filter: drop-shadow(0 0 40px rgba(59,130,246,.25)); }
.trace { stroke: var(--cyan); stroke-dasharray: 400; stroke-dashoffset: 400; animation: draw 2.2s ease-out .2s forwards; }
.nodes { opacity: 0; animation: fade .6s ease-out 2s forwards; }
.pulse { transform-origin: 240px 220px; animation: pulse 2.4s ease-in-out infinite; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
@keyframes pulse { 50% { transform: scale(1.35); opacity: .55; } }
@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__art { max-width: 340px; margin-inline: auto; order: -1; }
}

/* Sections and cards */
.about { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.5rem; align-items: start; }
@media (max-width: 760px) { .about { grid-template-columns: 1fr; gap: 1rem; } }
.card { background: linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; }
.grid { display: grid; gap: 1.25rem; margin-top: 2rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid--3 { grid-template-columns: 1fr; } }
.field-card { transition: border-color .2s; }
.field-card:hover { border-color: var(--cyan); }
.field-card__icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 12px; background: rgba(34,211,238,.1); color: var(--cyan); margin-bottom: 1.1rem; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tags li { font-size: .82rem; padding: .2rem .65rem; border-radius: 99px; background: rgba(59,130,246,.14); color: #a9c7ff; }
.benefits { display: grid; grid-template-columns: 1fr 1.6fr; gap: 3rem; }
.benefits__list { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem 2rem; }
.benefits__list li { display: flex; gap: .85rem; align-items: flex-start; }
.benefits__list svg { flex: none; margin-top: .2rem; }
.benefits__list h3 { margin-bottom: .2em; font-size: 1.05rem; }
.benefits__list p { margin: 0; font-size: .95rem; }
@media (max-width: 900px) { .benefits { grid-template-columns: 1fr; gap: 1rem; } }
@media (max-width: 600px) { .benefits__list { grid-template-columns: 1fr; } }
.cta { text-align: center; padding: clamp(2.5rem, 6vw, 4rem) 1.5rem; border-radius: 20px; border: 1px solid #2c4a80; background: radial-gradient(600px 240px at 50% 0, rgba(34,211,238,.18), transparent 70%), linear-gradient(135deg, #14264a, #0e1a33); }
.cta p { margin-inline: auto; }

.person__link { display: inline-flex; align-items: center; gap: .35rem; margin-top: .3rem; font-size: .85rem; color: var(--muted); text-decoration: none; transition: color .2s; }
.person__link:hover { color: var(--cyan); }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 2.5rem 0 1.5rem; margin-top: 2rem; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; align-items: center; }
.footer__tag { margin: .6rem 0 0; font-size: .9rem; }
.socials { display: flex; gap: .6rem; }
.socials a { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); transition: color .2s, border-color .2s; }
.socials a:hover { color: var(--cyan); border-color: var(--cyan); }
.footer__copy { margin: 1.75rem auto 0; font-size: .85rem; }

/* Registration */
.page-register { padding: 2rem 0 3rem; }
.back-link { display: inline-block; margin-bottom: 1.25rem; text-decoration: none; font-weight: 500; }
.back-link::before { content: '\2190\00a0'; }
.back-link:hover { text-decoration: underline; }
.page-title { font-size: clamp(2rem, 5vw, 2.8rem); }
.form { margin-top: 1.75rem; display: grid; gap: 1.75rem; padding: clamp(1.25rem, 4vw, 2.25rem); }
.form__group { border: 0; margin: 0; padding: 0; display: grid; gap: 1.1rem; min-width: 0; }
.form__group legend { font: 600 1.15rem var(--font-head); padding: 0; margin-bottom: 1rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
@media (max-width: 600px) { .form__row { grid-template-columns: 1fr; } }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 500; }
.hint { font: 400 .85rem var(--font-body); color: var(--muted); margin: 0; }
input[type="text"], input[type="email"], input[type="tel"], select, textarea { width: 100%; padding: .8rem .95rem; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; transition: border-color .2s, box-shadow .2s; }
textarea { resize: vertical; min-height: 7rem; }
input::placeholder, textarea::placeholder { color: #6a7ca0; }
input:hover, select:hover, textarea:hover { border-color: #35497a; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,211,238,.25); }
.has-error input, .has-error select, .has-error textarea { border-color: var(--danger); }
.field__error { margin: 0; color: var(--danger); font-size: .9rem; }
.field__error:empty { display: none; }
.choice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; }
@media (max-width: 520px) { .choice-grid { grid-template-columns: 1fr; } }
.choice { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.choice__body { display: flex; flex-direction: column; padding: .85rem 1rem .85rem 2.9rem; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); min-height: 64px; position: relative; transition: border-color .2s, background .2s; }
.choice__body small { color: var(--muted); }
.choice__body::before { content: ''; position: absolute; left: 1rem; top: 1.1rem; width: 20px; height: 20px; border: 2px solid var(--line); border-radius: 6px; transition: background .2s, border-color .2s; }
.choice:hover .choice__body { border-color: #35497a; }
.choice input:checked + .choice__body { border-color: var(--cyan); background: rgba(34,211,238,.08); }
.choice input:checked + .choice__body::before { border-color: var(--cyan); background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2304101c' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/14px no-repeat; }
.choice input:focus-visible + .choice__body { outline: 3px solid var(--cyan); outline-offset: 2px; }
.notice { margin: 0; padding: .85rem 1rem; border-radius: 10px; background: rgba(59,130,246,.12); border: 1px solid #2c4a80; color: #c5d9ff; font-size: .95rem; max-width: none; }
.form__status { margin: 0; color: var(--danger); }
.form__status:empty { display: none; }
#submit-btn { width: 100%; }

/* Success */
.success { margin-top: 1.5rem; text-align: center; outline: none; padding: clamp(2rem, 6vw, 3.5rem) 1.5rem; }
.success p { margin-inline: auto; }
.success__check { width: 76px; height: 76px; margin: 0 auto 1.25rem; display: grid; place-items: center; border-radius: 50%; background: var(--grad); color: #04101c; animation: pop .45s cubic-bezier(.2,1.4,.4,1); }
@keyframes pop { from { transform: scale(.4); opacity: 0; } }
.summary { text-align: left; margin: 1.75rem auto; max-width: 460px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.summary div { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 1rem; }
.summary div + div { border-top: 1px solid var(--line); }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; text-align: right; font-weight: 500; }
.success .hero__actions { justify-content: center; }

/* روابط السوشيال كنصوص */
.socials a { width: auto; padding: 0 1rem; min-height: 44px; text-decoration: none; font-size: .95rem; }

/* ---------- Games ---------- */
.game-thumb { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 10px; border: 1px solid var(--line); margin-bottom: 1rem; background: var(--surface-2); }
.games-grid .tags { margin-bottom: 1.1rem; }
@media (min-width: 901px) { .games-grid { grid-template-columns: repeat(2, 1fr); } }


/* ---------- Team ---------- */
.team-title { margin: 2.25rem 0 1rem; font-size: 1.2rem; color: var(--muted); font-weight: 600; }
.people { display: grid; gap: .9rem; }
.people--board { grid-template-columns: repeat(2, 1fr); }
.person { display: flex; align-items: center; gap: .9rem; }
.person p { margin: 0; }
.person__name { font-weight: 600; color: var(--text); }
.person__role { font-size: .9rem; color: var(--cyan); }
.avatar { flex: none; width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; font: 700 1rem var(--font-head); color: #04101c; background: var(--grad); overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.person--lg { padding: 1.25rem 1.5rem; border: 1px solid #2c4a80; border-radius: var(--radius); background: radial-gradient(400px 160px at 0 0, rgba(34,211,238,.12), transparent 70%), var(--surface-2); }
.person--lg .avatar { width: 68px; height: 68px; font-size: 1.4rem; }
.person--lg .person__name { font-size: 1.15rem; }
.team-grid { margin-top: 0; }
.team-card p { font-size: .95rem; }
.team-card .people { padding-top: 1rem; border-top: 1px solid var(--line); }
@media (max-width: 600px) { .people--board { grid-template-columns: 1fr; } }


/* ========== Light mode ========== */
:root { color-scheme: dark; }

[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f8fc; --surface: #ffffff; --surface-2: #f0f5fb; --line: #d5dfec;
  --text: #0b1220; --muted: #4a5d7a;
  --blue: #2563eb; --cyan: #0e7490; --danger: #c9283f;
}
[data-theme="light"] body {
  background-image: radial-gradient(900px 500px at 85% -5%, rgba(37,99,235,.10), transparent 60%),
                    radial-gradient(700px 400px at -5% 30%, rgba(14,116,144,.07), transparent 60%);
}
[data-theme="light"] .navbar { background: rgba(245,248,252,.88); }
[data-theme="light"] .lead { color: #2b3d5c; }
[data-theme="light"] .badge { color: #2b3d5c; background: #fff; }
[data-theme="light"] .hero h1 {
  background: linear-gradient(180deg, #0b1220 30%, #2563eb);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .section--alt { background: linear-gradient(180deg, rgba(255,255,255,.8), rgba(255,255,255,.3)); }
[data-theme="light"] .tags li { color: #1d4ed8; background: rgba(37,99,235,.1); }
[data-theme="light"] .btn--primary { color: #fff; box-shadow: 0 6px 20px rgba(14,116,144,.25); }
[data-theme="light"] .spinner { border-color: rgba(255,255,255,.4); border-top-color: #fff; }
[data-theme="light"] .avatar,
[data-theme="light"] .success__check { color: #fff; }
[data-theme="light"] .cta {
  border-color: #bcd0ee;
  background: radial-gradient(600px 240px at 50% 0, rgba(14,116,144,.12), transparent 70%), linear-gradient(135deg, #eaf2ff, #f7fbff);
}
[data-theme="light"] .person--lg {
  border-color: #bcd0ee;
  background: radial-gradient(400px 160px at 0 0, rgba(14,116,144,.10), transparent 70%), var(--surface);
}
[data-theme="light"] .notice { background: rgba(37,99,235,.08); border-color: #bcd0ee; color: #1e3a8a; }
[data-theme="light"] input:hover,
[data-theme="light"] select:hover,
[data-theme="light"] textarea:hover,
[data-theme="light"] .choice:hover .choice__body { border-color: #9db4d6; }
[data-theme="light"] .choice input:checked + .choice__body::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E");
}
[data-theme="light"] .benefits__list svg { stroke: var(--cyan); }
[data-theme="light"] .circuit { filter: drop-shadow(0 0 30px rgba(37,99,235,.2)); }