/* ============================================================
   CoreX AI × Inspire — Hall of Winners
   base.css · design tokens, reset, shell, header, footer
   ============================================================ */

:root {
  color-scheme: dark;

  /* type */
  --font-display: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", "IBM Plex Sans Arabic", system-ui, sans-serif;
  --font-arabic: "IBM Plex Sans Arabic", "Inter", system-ui, sans-serif;

  /* brand accents */
  --violet: #7c6cff;
  --violet-soft: #a99bff;
  --teal: #35e0d0;
  --magenta: #ee6bff;
  --gold: #f6c667;

  /* motion */
  --transition: cubic-bezier(0.22, 1, 0.36, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur: 320ms;
  --dur-slow: 620ms;

  /* radii */
  --r-xs: 10px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 36px;
  --r-pill: 999px;

  /* layout */
  --shell-max: 1240px;
  --gutter: clamp(1.15rem, 4vw, 3.5rem);
  --header-h: 72px;
}

/* ---------- dark (default) ---------- */
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #06060b;
  --bg-deep: #04040a;
  --surface: rgba(255, 255, 255, 0.038);
  --surface-2: rgba(255, 255, 255, 0.062);
  --surface-solid: #0d0d16;
  --glass: rgba(14, 14, 24, 0.66);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.17);
  --text: #f4f4fb;
  --text-soft: #b8b8cc;
  --text-dim: #7c7c93;
  --accent: var(--violet);
  --accent-2: var(--teal);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 18px 40px -22px rgba(0, 0, 0, 0.9);
  --shadow-lg: 0 40px 90px -40px rgba(0, 0, 0, 0.95);
  --glow: 0 0 0 1px rgba(124, 108, 255, 0.28), 0 24px 70px -32px rgba(124, 108, 255, 0.55);
  --grain-opacity: 0.05;
  --aurora-a: rgba(124, 108, 255, 0.32);
  --aurora-b: rgba(53, 224, 208, 0.18);
  --aurora-c: rgba(238, 107, 255, 0.18);
}

/* ---------- light ---------- */
html[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f5fb;
  --bg-deep: #eeecf7;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-2: #ffffff;
  --surface-solid: #ffffff;
  --glass: rgba(255, 255, 255, 0.76);
  --line: rgba(18, 16, 42, 0.09);
  --line-strong: rgba(18, 16, 42, 0.16);
  --text: #14132b;
  --text-soft: #4b4a68;
  --text-dim: #767590;
  --accent: #5b48f5;
  --accent-2: #0fa8a0;
  --shadow-sm: 0 1px 2px rgba(24, 22, 52, 0.08);
  --shadow-md: 0 18px 38px -24px rgba(24, 22, 52, 0.32);
  --shadow-lg: 0 40px 90px -48px rgba(24, 22, 52, 0.4);
  --glow: 0 0 0 1px rgba(91, 72, 245, 0.16), 0 24px 60px -34px rgba(91, 72, 245, 0.4);
  --grain-opacity: 0.03;
  --aurora-a: rgba(124, 108, 255, 0.24);
  --aurora-b: rgba(15, 168, 160, 0.16);
  --aurora-c: rgba(238, 107, 255, 0.14);
}

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: clamp(0.94rem, 0.9rem + 0.2vw, 1rem);
  line-height: 1.62;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background var(--dur) var(--transition), color var(--dur) var(--transition);
}

/* ambient background */
body::before {
  content: "";
  position: fixed;
  inset: -20vmax;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 18% 8%, var(--aurora-a), transparent 62%),
    radial-gradient(34vmax 34vmax at 84% 18%, var(--aurora-b), transparent 60%),
    radial-gradient(40vmax 40vmax at 62% 92%, var(--aurora-c), transparent 62%);
  filter: blur(20px);
  animation: aurora-drift 26s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

[hidden] { display: none !important; }

img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; }
a { color: inherit; text-decoration: none; }

::selection { background: color-mix(in oklab, var(--accent) 45%, transparent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: color-mix(in oklab, var(--accent) 55%, var(--line-strong)); background-clip: content-box; }

/* ---------- typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 1.5rem + 4.4vw, 4.6rem); }
h2 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.9rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.8vw, 1.5rem); }
p { text-wrap: pretty; }

:lang(ar), [dir="rtl"] { font-family: var(--font-arabic); letter-spacing: 0; }

.section-kicker,
.eyebrow,
.header-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- shell ---------- */
.site-shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.view-panel { flex: 1; padding-block: clamp(2rem, 5vw, 4rem) clamp(3rem, 7vw, 6rem); }

/* scroll progress */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 100%;
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--magenta));
  z-index: 90;
  pointer-events: none;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  margin-inline: calc(var(--gutter) * -1);
  padding: 0.65rem var(--gutter);
  background: transparent;
  transition: background var(--dur) var(--transition), border-color var(--dur) var(--transition),
    box-shadow var(--dur) var(--transition), backdrop-filter var(--dur) var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-md);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(140deg, var(--violet), var(--magenta) 55%, var(--teal));
  box-shadow: 0 10px 26px -12px color-mix(in oklab, var(--violet) 80%, transparent);
  transition: transform var(--dur) var(--spring), box-shadow var(--dur) var(--transition);
}

.brand-lockup:hover .brand-mark { transform: rotate(-8deg) scale(1.07); }

.brand-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-name i { font-style: normal; color: var(--text-dim); margin-inline: 0.15em; }

.header-actions { display: flex; align-items: center; gap: clamp(0.4rem, 1.4vw, 1.1rem); }
.header-label { display: none; }

.header-link {
  position: relative;
  padding: 0.45rem 0.15rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: color var(--dur-fast) var(--transition);
}
.header-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.25rem;
  height: 1.5px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur) var(--transition);
}
.header-link:hover { color: var(--text); }
.header-link:hover::after { transform: scaleX(1); }

/* ---------- buttons ---------- */
.icon-button {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-soft);
  overflow: hidden;
  transition: transform var(--dur) var(--spring), border-color var(--dur-fast) var(--transition),
    color var(--dur-fast) var(--transition), background var(--dur-fast) var(--transition);
}
.icon-button:hover {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.icon-button:active { transform: scale(0.94); }

.theme-icon {
  position: absolute;
  width: 18px;
  height: 18px;
  background: currentColor;
  transition: opacity var(--dur) var(--transition), transform var(--dur) var(--spring);
}
.theme-icon-moon { mask: var(--icon-moon) center / contain no-repeat; -webkit-mask: var(--icon-moon) center / contain no-repeat; }
.theme-icon-sun { mask: var(--icon-sun) center / contain no-repeat; -webkit-mask: var(--icon-sun) center / contain no-repeat; }

html[data-theme="dark"] .theme-icon-sun { opacity: 0; transform: rotate(-90deg) scale(0.4); }
html[data-theme="dark"] .theme-icon-moon { opacity: 1; transform: none; }
html[data-theme="light"] .theme-icon-moon { opacity: 0; transform: rotate(90deg) scale(0.4); }
html[data-theme="light"] .theme-icon-sun { opacity: 1; transform: none; }

.text-button {
  padding: 0.5rem 0.85rem;
  border-radius: var(--r-pill);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
  border: 1px solid transparent;
  transition: color var(--dur-fast) var(--transition), background var(--dur-fast) var(--transition),
    border-color var(--dur-fast) var(--transition);
}
.text-button:hover {
  color: #ff8a8a;
  background: color-mix(in oklab, #ff5c5c 12%, transparent);
  border-color: color-mix(in oklab, #ff5c5c 32%, transparent);
}

.tool-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-soft);
  transition: transform var(--dur) var(--spring), color var(--dur-fast) var(--transition),
    border-color var(--dur-fast) var(--transition), background var(--dur-fast) var(--transition);
}
.tool-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tool-button:hover {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--surface-2);
  transform: translateY(-1px);
}
.tool-button[aria-expanded="true"] {
  color: var(--text);
  border-color: color-mix(in oklab, var(--accent) 50%, transparent);
  background: color-mix(in oklab, var(--accent) 14%, transparent);
}

/* ---------- shared bits ---------- */
.status-dot {
  position: relative;
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: var(--r-pill);
  background: #3ddc97;
  box-shadow: 0 0 0 3px color-mix(in oklab, #3ddc97 22%, transparent);
}
.status-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  border: 1px solid #3ddc97;
  animation: ping 2.4s var(--ease-out) infinite;
}

.avatar {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  overflow: hidden;
  border-radius: 14px;
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, var(--avatar-primary, var(--violet)), var(--avatar-secondary, var(--teal)));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }
.avatar-fallback { position: absolute; inset: 0; display: grid; place-items: center; font-size: 0.95em; }
.avatar > .avatar-fallback { z-index: 0; }
/* when the avatar element itself is the fallback, keep it in flow */
.avatar.avatar-fallback { position: relative; inset: auto; }
.avatar-small { width: 34px; height: 34px; border-radius: 12px; font-size: 0.85rem; }
.avatar-large { width: 48px; height: 48px; border-radius: 16px; font-size: 1.1rem; }

.logo-frame {
  display: grid;
  place-items: center;
  padding: 0.5rem 0.7rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform var(--dur) var(--spring), border-color var(--dur-fast) var(--transition);
}
.logo-frame img { height: 26px; width: auto; object-fit: contain; }
.logo-frame:hover { transform: translateY(-3px); border-color: var(--line-strong); }
html[data-theme="dark"] .logo-frame img { filter: brightness(1.12); }
.organizer-multiply { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- footer ---------- */
.site-footer {
  margin-inline: calc(var(--gutter) * -1);
  padding: clamp(2.25rem, 5vw, 3.5rem) var(--gutter) clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--accent) 6%, transparent));
}

.footer-main {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  align-items: start;
}

.footer-brand p,
.collab-block p,
.founder-block p { font-size: 0.88rem; color: var(--text-soft); }

.footer-logos { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.9rem; flex-wrap: wrap; }

.collab-block .section-kicker,
.founder-block .section-kicker { margin-bottom: 0.6rem; }

.founder-block p:not(.section-kicker) {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.social-links { display: flex; gap: 0.5rem; margin-top: 0.9rem; }
.social-links a {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-soft);
  transition: transform var(--dur) var(--spring), color var(--dur-fast) var(--transition),
    border-color var(--dur-fast) var(--transition), box-shadow var(--dur) var(--transition);
}
.social-links svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.social-links a:hover {
  transform: translateY(-3px);
  color: var(--text);
  border-color: color-mix(in oklab, var(--accent) 55%, transparent);
  box-shadow: var(--glow);
}

.founder-links { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 0.75rem; }
.founder-links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color var(--dur-fast) var(--transition), border-color var(--dur-fast) var(--transition);
}
.founder-links a:hover { color: var(--accent); border-color: var(--accent); }

.footer-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  width: 100%;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  transition: color var(--dur-fast) var(--transition);
}
.footer-back span { transition: transform var(--dur) var(--spring); }
.footer-back:hover { color: var(--text); }
.footer-back:hover span { transform: translate(3px, -3px); }

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .header-label {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    border-radius: var(--r-pill);
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text-soft);
    font-size: 0.66rem;
  }
}

@media (max-width: 520px) {
  :root { --header-h: 64px; }
  .brand-name { font-size: 0.85rem; }
}