/* ============================================================
   Crash Course SEO™ — Cosmic Video Galaxy
   - Plugin-scoped styles
   - No global resets
============================================================ */

.ccseo-cvg{
  position: relative;
  width: 100%;
  margin: 24px auto;
  color: rgba(229,231,235,0.92);
}

.ccseo-cvg__header{ text-align: center; }
.ccseo-cvg__title{
  margin: 0 0 10px;
  font-weight: 950;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -0.02em;
}

/* Galaxy wrapper */
.ccseo-cvg__galaxy{ margin-top: 16px; }

/* Scene */
.ccseo-cvg__scene{
  position: relative;
  width: 100%;
  min-height: clamp(520px, 62vh, 680px);
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(148,163,184,0.26);
  background:
    radial-gradient(900px circle at 18% 22%, rgba(34,211,238,0.13), transparent 60%),
    radial-gradient(780px circle at 82% 28%, rgba(168,85,247,0.11), transparent 64%),
    radial-gradient(820px circle at 62% 92%, rgba(249,115,22,0.08), transparent 60%),
    rgba(2,6,23,0.58);
  box-shadow:
    0 40px 130px rgba(0,0,0,0.70),
    inset 0 0 0 1px rgba(255,255,255,0.04);

  perspective: 1200px;
  transform-style: preserve-3d;
}

/* local canvas starfield */
.ccseo-cvg__stars{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.9;
}

/* nebula drift */
.ccseo-cvg__scene::before{
  content: "";
  position: absolute;
  inset: -30%;
  background:
    conic-gradient(from 210deg at 50% 50%,
      rgba(34,211,238,0.12),
      rgba(168,85,247,0.12),
      rgba(249,115,22,0.08),
      rgba(236,72,153,0.10),
      rgba(34,211,238,0.12));
  filter: blur(40px);
  opacity: 0.25;
  pointer-events: none;
  transform: translateZ(-600px);
  animation: ccseoCvgDrift 28s linear infinite;
  z-index: 0;
}

@keyframes ccseoCvgDrift{
  0%{ transform: translate3d(-1%, -1%, -600px) rotate(0deg); }
  100%{ transform: translate3d(1%, 1%, -600px) rotate(360deg); }
}

/* Scanlines */
.ccseo-cvg__scene::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(255,255,255,0.05) 0px,
      rgba(255,255,255,0.05) 1px,
      transparent 2px,
      transparent 7px
    );
  opacity: 0.04;
  mix-blend-mode: overlay;
  pointer-events: none;
  animation: ccseoCvgScan 10s linear infinite;
  z-index: 5;
}

@keyframes ccseoCvgScan{
  from{ transform: translateY(0); }
  to{ transform: translateY(14px); }
}

/* HUD */
.ccseo-cvg__hud{
  position: absolute;
  left: 16px;
  top: 16px;
  width: min(420px, calc(100% - 32px));
  z-index: 8;
  border-radius: 18px;
  padding: 14px 14px 12px;
  background: rgba(2,6,23,0.55);
  border: 1px solid rgba(148,163,184,0.28);
  backdrop-filter: blur(10px);
  box-shadow: 0 25px 85px rgba(0,0,0,0.55);
}

.ccseo-cvg__hud-kicker{
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(148,163,184,0.85);
}

.ccseo-cvg__hud-title{
  margin-top: 4px;
  font-weight: 950;
  font-size: 18px;
  color: rgba(229,231,235,0.95);
}

.ccseo-cvg__hud-desc{
  margin-top: 6px;
  font-size: 13px;
  color: rgba(163,173,194,0.95);
  line-height: 1.4;
}

/* Galaxy system */
.ccseo-cvg__system{
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  z-index: 4;

  --sys-rx: 0deg;
  --sys-ry: 0deg;
  transform: translate3d(-50%,-50%,0) rotateX(calc(58deg + var(--sys-rx))) rotateY(var(--sys-ry));
}

.ccseo-cvg__core{
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  transform: translate3d(-50%,-50%,0);
  background:
    radial-gradient(circle at 35% 35%, rgba(255,255,255,0.95), rgba(34,211,238,0.35) 28%, rgba(168,85,247,0.18) 55%, rgba(0,0,0,0) 72%);
  box-shadow:
    0 0 80px rgba(34,211,238,0.32),
    0 0 140px rgba(168,85,247,0.22),
    0 0 220px rgba(249,115,22,0.12);
  animation: ccseoCvgCorePulse 4.8s ease-in-out infinite;
}

@keyframes ccseoCvgCorePulse{
  0%,100%{ transform: translate3d(-50%,-50%,0) scale(1); filter: saturate(1.1); }
  50%{ transform: translate3d(-50%,-50%,0) scale(1.14); filter: saturate(1.25); }
}

.ccseo-cvg-orbit{
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  pointer-events: none;

  --radius: 320px;
  --orbit: 640px;
  --size: 120px;
  --speed: 70s;
  --phase: 0deg;
  --z: -240px;
}

.ccseo-cvg-orbit__ring{
  position: absolute;
  left: 0;
  top: 0;
  width: var(--orbit);
  height: var(--orbit);
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.12);
  box-shadow: 0 0 40px rgba(34,211,238,0.06);
  transform: translate(-50%,-50%) translateZ(var(--z));
  opacity: 0.9;
}

.ccseo-cvg-orbit__rot{
  position: relative;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  transform: rotateZ(var(--phase));
  animation: ccseoCvgOrbit var(--speed) linear infinite;
}

@keyframes ccseoCvgOrbit{
  from{ transform: rotateZ(var(--phase)); }
  to{ transform: rotateZ(calc(var(--phase) + 360deg)); }
}

.ccseo-cvg-planet{
  pointer-events: auto;
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: absolute;
  left: 0;
  top: 0;
  width: var(--size);
  height: var(--size);
  transform-style: preserve-3d;
  transform: translate3d(var(--radius), 0, var(--z));
  transition: transform .22s ease, filter .22s ease;
}

.ccseo-cvg-planet:focus-visible{ outline: none; }

.ccseo-cvg-planet:focus-visible .ccseo-cvg-planet__sphere{
  box-shadow:
    inset -22px -14px 38px rgba(0,0,0,0.55),
    0 30px 95px rgba(0,0,0,0.72),
    0 0 0 2px rgba(34,211,238,0.75),
    0 0 60px rgba(168,85,247,0.22);
}

.ccseo-cvg-planet__sphere{
  position: absolute;
  inset: 0;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(148,163,184,0.38);
  background-image:
    var(--tex, radial-gradient(circle at 35% 35%, rgba(34,211,238,0.35), rgba(168,85,247,0.22) 38%, rgba(2,6,23,0.18) 72%)),
    radial-gradient(circle at 28% 22%, rgba(255,255,255,0.28), transparent 48%),
    radial-gradient(circle at 80% 78%, rgba(0,0,0,0.60), transparent 56%);
  background-size: 220% 100%, 100% 100%, 100% 100%;
  background-position: 0% 0%, 0 0, 0 0;
  filter: saturate(1.18) contrast(1.06);
  box-shadow:
    inset -22px -14px 38px rgba(0,0,0,0.55),
    0 30px 95px rgba(0,0,0,0.72),
    0 0 60px rgba(34,211,238,0.18);
  transform: translateZ(22px);
  animation: ccseoCvgPlanetSpin 18s linear infinite;
}

@keyframes ccseoCvgPlanetSpin{
  from{ background-position: 0% 0%, 0 0, 0 0; }
  to{ background-position: 220% 0%, 0 0, 0 0; }
}

.ccseo-cvg-planet__sphere::after{
  content: "";
  position: absolute;
  inset: -16px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.10), transparent 55%);
  pointer-events: none;
  mix-blend-mode: screen;
}

.ccseo-cvg-orbit--ring .ccseo-cvg-planet__sphere::before{
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 165%;
  height: 58%;
  border-radius: 999px;
  border: 2px solid rgba(168,85,247,0.26);
  box-shadow: 0 0 60px rgba(168,85,247,0.18);
  transform: translate(-50%,-50%) rotateX(72deg) rotateZ(-18deg);
  opacity: 0.9;
}

.ccseo-cvg-planet__name{
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateZ(38px);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 12px;
  color: rgba(229,231,235,0.92);
  background: rgba(2,6,23,0.55);
  border: 1px solid rgba(148,163,184,0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}

.ccseo-cvg-planet:hover .ccseo-cvg-planet__name,
.ccseo-cvg-planet:focus-visible .ccseo-cvg-planet__name{
  opacity: 1;
  transform: translateX(-50%) translateY(-2px) translateZ(38px);
}

.ccseo-cvg-planet:hover{
  filter: saturate(1.15);
  transform: translate3d(var(--radius), 0, var(--z)) scale(1.05);
}

.ccseo-cvg__hint{
  margin-top: 12px;
  display: flex;
  justify-content: center;
  font-size: 12px;
  color: rgba(148,163,184,0.95);
}

/* Pause orbit animations when offscreen (set by JS) */
.ccseo-cvg.ccseo-cvg--paused .ccseo-cvg-orbit__rot{ animation-play-state: paused; }

/* Hide fallback grid on desktop */
.ccseo-cvg-grid--fallback{ display: none; }

@media (max-width: 900px){
  .ccseo-cvg__scene{ display: none; }
  .ccseo-cvg__hint{ display: none; }
  .ccseo-cvg-grid--fallback{ display: flex; }
}

@media (prefers-reduced-motion: reduce){
  .ccseo-cvg__scene{ display: none !important; }
  .ccseo-cvg__hint{ display: none !important; }
  .ccseo-cvg-grid--fallback{ display: flex !important; }
}

/* planets grid */
.ccseo-cvg-grid{
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  align-items: center;
}

/* planet button */
.ccseo-cvg-grid__planet{
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  width: 170px;
  text-align: center;
  color: inherit;
}

.ccseo-cvg-grid__media{
  display: block;
  width: 170px;
  aspect-ratio: 1/1;
  border-radius: 999px;
  overflow: hidden;
  position: relative;

  background: rgba(2,6,23,0.55);
  border: 1px solid rgba(148,163,184,0.35);
  box-shadow:
    0 22px 70px rgba(0,0,0,0.55),
    0 0 40px rgba(34,211,238,0.12);

  transform: translate3d(0,0,0);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.ccseo-cvg-grid__media::after{
  content:"";
  position:absolute;
  inset:-18px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.16), transparent 55%);
  pointer-events:none;
}

.ccseo-cvg-grid__media img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display:block;
  filter: contrast(1.05) saturate(1.12);
}

.ccseo-cvg-grid__label{
  display: inline-block;
  margin-top: 10px;
  font-weight: 900;
  letter-spacing: -0.01em;
  opacity: 0.92;
}

.ccseo-cvg-grid__planet:hover .ccseo-cvg-grid__media{
  transform: translateY(-3px) scale(1.02);
  border-color: rgba(34,211,238,0.65);
  box-shadow:
    0 30px 90px rgba(0,0,0,0.65),
    0 0 55px rgba(168,85,247,0.20);
}

@media (max-width: 900px){
  .ccseo-cvg-grid__planet,
  .ccseo-cvg-grid__media{ width: 140px; }
}

/* ============================================================
   MODAL (YouTube player)
============================================================ */

body.ccseo-cvg-modal-open{ overflow: hidden; }

.ccseo-cvg-modal{
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: none;
}

.ccseo-cvg-modal.is-open{
  display: grid;
  place-items: center;
}

.ccseo-cvg-modal__backdrop{
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(8px);
}

.ccseo-cvg-modal__dialog{
  position: relative;
  width: min(980px, 92vw);
  border-radius: 22px;
  background: radial-gradient(circle at top, rgba(2,6,23,0.98), rgba(15,23,42,0.92));
  border: 1px solid rgba(148,163,184,0.35);
  box-shadow: 0 40px 120px rgba(0,0,0,0.75);
  padding: 16px;
}

.ccseo-cvg-modal__close{
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.45);
  background: rgba(2,6,23,0.55);
  color: rgba(229,231,235,0.92);
  font-size: 18px;
  cursor: pointer;
}

.ccseo-cvg-modal__frame{
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(148,163,184,0.22);
}

.ccseo-cvg-modal__frame iframe{
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

.ccseo-cvg-modal__meta{
  padding: 12px 2px 0;
}

.ccseo-cvg-modal__title{
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 4px;
}

.ccseo-cvg-modal__desc{
  color: rgba(163,173,194,0.95);
  font-size: 14px;
}