/* ===== Hero 3D AI Logo Stage =====
   純原生 CSS/JS，移植自 React 版 3D AI Logo Hero。
   顏色盡量取自 theme.css 變數；深色模式跟隨 [data-theme="dark"]。 */

.hero-stage {
  position: relative;
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(18px, 3vw, 32px) 0;
  overflow: hidden;
  border-radius: 6px;
}

/* 背景隨滑鼠移動的柔光 */
.hero-stage-glow {
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  filter: blur(80px);
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, rgba(236, 72, 153, 0.12) 50%, transparent 80%);
  transition: opacity 0.4s ease;
}

[data-theme="dark"] .hero-stage-glow {
  background: radial-gradient(circle, rgba(59, 130, 246, 0.22) 0%, rgba(147, 51, 234, 0.16) 50%, transparent 80%);
}

/* 細點紋理增加空間深度 */
.hero-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: radial-gradient(var(--deco-strong) 1.2px, transparent 1.2px);
  background-size: 24px 24px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(10px, 1.6vw, 18px);
  max-width: 760px;
  margin: 0 auto;
  perspective: 1000px;
}

/* 單張 3D 卡片 */
.logo-card {
  --c: var(--accent);
  --glow: rgba(62, 143, 216, 0.3);
  --depth: 20px;
  position: relative;
  appearance: none;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transform-style: preserve-3d;
  outline: none;
  opacity: 0;
  transform: translateY(24px) scale(0.94);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo-card.is-in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.logo-card-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  text-align: center;
  gap: 6px;
  width: 100%;
  aspect-ratio: 4 / 4.5;
  padding: clamp(8px, 1.4vw, 14px);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(10px);
  transform-style: preserve-3d;
  will-change: transform;
  transition: box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.logo-card:hover .logo-card-inner,
.logo-card:focus-visible .logo-card-inner {
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.16);
  border-color: color-mix(in srgb, var(--c) 55%, var(--line));
}

.logo-card:focus-visible .logo-card-inner {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* 卡片底部發光暈 */
.logo-card-inner::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 16px;
  z-index: -1;
  transform: translateZ(-20px);
  background: radial-gradient(circle, var(--glow) 0%, transparent 72%);
  opacity: 0.3;
  filter: blur(12px);
  transition: opacity 0.3s ease;
}

.logo-card:hover .logo-card-inner::before,
.logo-card:focus-visible .logo-card-inner::before {
  opacity: 0.85;
}

.logo-company {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  align-self: flex-start;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: clamp(9px, 1vw, 11px);
  font-weight: 500;
  color: var(--muted);
  background: var(--surface-strong);
  border: 1px solid var(--line);
  transform: translateZ(18px);
  white-space: nowrap;
}

.logo-company i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c);
  flex: none;
}

.logo-svg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(40px, 5vw, 56px);
  height: clamp(40px, 5vw, 56px);
  margin: auto 0;
  transform: translateZ(40px);
  transition: transform 0.3s ease;
}

.logo-card:hover .logo-svg,
.logo-card:focus-visible .logo-svg {
  transform: translateZ(46px) scale(1.08);
}

.logo-svg svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.logo-halo {
  position: absolute;
  width: clamp(58px, 9vw, 82px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px dashed color-mix(in srgb, var(--muted) 45%, transparent);
  transform: translateZ(-8px);
  transition: transform 0.7s ease;
  pointer-events: none;
}

.logo-card:hover .logo-halo,
.logo-card:focus-visible .logo-halo {
  transform: translateZ(-8px) scale(1.25) rotate(45deg);
}

.logo-name {
  font-size: clamp(11px, 1.3vw, 14px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
  transform: translateZ(28px);
}

.logo-badge {
  display: inline-block;
  max-width: 100%;
  padding: 1px 8px;
  border-radius: 4px;
  font-family: "Jost", ui-monospace, monospace;
  font-size: clamp(8px, 1vw, 10px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--c);
  background: color-mix(in srgb, var(--c) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--c) 28%, transparent);
  transform: translateZ(28px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-stage-hint {
  position: relative;
  z-index: 1;
  margin: 14px 0 0;
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ===== 詳細資訊 Modal ===== */
.logo-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: color-mix(in srgb, var(--ink) 55%, transparent);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.logo-modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.logo-modal {
  position: relative;
  width: min(440px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  padding: clamp(22px, 4vw, 32px);
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
  transform: translateY(16px) scale(0.96);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo-modal-backdrop.is-open .logo-modal {
  transform: translateY(0) scale(1);
}

.logo-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-strong);
  color: var(--muted);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.logo-modal-close:hover {
  color: var(--ink);
  border-color: var(--muted);
}

.logo-modal-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.logo-modal-head .logo-svg {
  transform: none;
  width: 60px;
  height: 60px;
  flex: none;
}

.logo-modal-title {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--ink);
}

.logo-modal-company {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.logo-modal-tagline {
  margin: 0 0 12px;
  font-weight: 500;
  color: var(--c);
}

.logo-modal-desc {
  margin: 0 0 18px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

.logo-modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.logo-modal-meta span {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  color: var(--ink);
}

.logo-modal-caps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.logo-modal-caps li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--ink);
}

.logo-modal-caps li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c);
  flex: none;
}

.logo-modal-caps {
  margin: 0;
  padding: 0;
}

/* 手機：改為兩欄，避免過高 */
@media (max-width: 560px) {
  .hero-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 360px;
  }
}

/* 減少動態偏好：僅取消進場交錯動畫;3D 傾斜與飄移由 JS 控制 */
@media (prefers-reduced-motion: reduce) {
  .logo-card {
    opacity: 1;
    transition: none;
  }
}