/* ============================================================
   Sections styling: Solve · Works · About · Workflow · Price
   ============================================================ */

.sec-head { margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; flex-wrap: wrap; }
.sec-head-row .works-nda {
  font-size: 13px; line-height: 1.6; color: var(--text-faint);
  max-width: 38ch; padding-left: 18px; border-left: 1px solid var(--border-2);
}

/* ---------- Solve ---------- */
.solve-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.solve-card {
  background: var(--bg-1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: background 0.4s var(--ease);
}
.solve-card:hover { background: var(--bg-2); }

/* ─ image section ─ */
.solve-img-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-3);
  flex-shrink: 0;
}
.solve-img-base,
.solve-img-hover {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  user-select: none;
}

/* Effect 1 — Dramatic (bike): slow-in / fast-out */
.solve-effect-dramatic .solve-img-hover {
  clip-path: circle(0% at 50% 50%);
  transition: clip-path 0.18s ease-in;
}
.solve-card-img.solve-effect-dramatic:hover .solve-img-hover {
  clip-path: circle(150% at 50% 50%);
  transition: clip-path 0.88s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.solve-effect-dramatic .solve-img-wrap::after {
  content: ''; position: absolute; inset: 0;
  pointer-events: none; z-index: 4;
  background: radial-gradient(circle at 50% 50%,
    color-mix(in srgb, var(--accent) 40%, transparent), transparent 65%);
  opacity: 0;
}
.solve-card-img.solve-effect-dramatic:hover .solve-img-wrap::after {
  animation: solve-glow 0.7s ease forwards;
}
@keyframes solve-glow { 0%{opacity:0} 28%{opacity:.9} 100%{opacity:0} }

/* Effect 2 — Zoom-out (earphone): slow-in / fast-out */
.solve-effect-zoomout .solve-img-base {
  transition: opacity 0.16s ease, transform 0.2s ease;
}
.solve-card-img.solve-effect-zoomout:hover .solve-img-base {
  opacity: 0; transform: scale(0.88);
  transition: opacity 0.52s ease, transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}
.solve-effect-zoomout .solve-img-hover {
  opacity: 0; transform: scale(1.18);
  transition: opacity 0.16s ease, transform 0.2s ease;
}
.solve-card-img.solve-effect-zoomout:hover .solve-img-hover {
  opacity: 1; transform: scale(1);
  transition: opacity 0.55s 0.1s ease,
              transform 0.72s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Effect 3 — Sweep (watch): slow-in / fast-out */
.solve-effect-sweep .solve-img-hover {
  clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
  transition: clip-path 0.16s ease-in;
}
.solve-card-img.solve-effect-sweep:hover .solve-img-hover {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  transition: clip-path 0.8s cubic-bezier(0.76, 0, 0.24, 1);
}

/* ─ card body (text) ─ */
.solve-card-body {
  padding: clamp(20px, 2vw, 28px) clamp(22px, 2vw, 28px) clamp(24px, 2.5vw, 34px);
  display: flex; flex-direction: column;
  position: relative;
}
.solve-num {
  position: absolute; top: 18px; right: 20px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-faint);
}
.solve-card-t { font-size: 17px; font-weight: 600; line-height: 1.4; letter-spacing: -0.01em; margin-bottom: 12px; }
.solve-card-d { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

/* ─ GLB card ─ */
.solve-card-glb { min-height: 440px; }
.solve-glb-placeholder {
  flex: 1; min-height: 260px;
  background: var(--bg-3);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 14px;
}
.solve-glb-rig {
  position: relative; width: 88px; height: 88px;
}
.solve-glb-sphere {
  position: absolute; inset: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 36% 36%, var(--accent-soft), transparent 68%),
    color-mix(in srgb, var(--accent) 18%, var(--bg-3));
  border: 1px solid var(--accent-line);
}
.solve-glb-ring {
  position: absolute; border-radius: 50%;
  border: 1.5px solid transparent;
}
.solve-glb-ring-1 {
  inset: 0;
  border-top-color: var(--accent);
  animation: glb-spin 2.8s linear infinite;
}
.solve-glb-ring-2 {
  inset: 10px;
  border-right-color: color-mix(in srgb, var(--accent) 50%, transparent);
  animation: glb-spin 4.5s linear infinite reverse;
}
@keyframes glb-spin { to { transform: rotate(360deg); } }
.solve-glb-label {
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  color: var(--text-dim); letter-spacing: 0.04em;
}
.solve-glb-hint {
  font-family: var(--font-mono); font-size: 10px; color: var(--text-faint);
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* ---------- Works (horizontal filmstrip) ---------- */
.works-head { align-items: flex-end; }
.works-head-l { min-width: 0; }
.works-head-r { display: flex; flex-direction: column; align-items: flex-end; gap: 18px; }
.works-arrows { display: flex; gap: 10px; }
.works-arrow {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg-1); border: 1px solid var(--border-2); color: var(--text);
  transition: border-color 0.25s, color 0.25s, background 0.25s, opacity 0.25s, transform 0.25s var(--ease);
}
.works-arrow:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.works-arrow:disabled { opacity: 0.32; cursor: default; }

.works-rail-shell { position: relative; margin-top: clamp(34px, 4vw, 52px); }
/* edge fades that hint at more content */
.works-rail-shell::before, .works-rail-shell::after {
  content: ""; position: absolute; top: 0; bottom: 18px; width: clamp(24px, 6vw, 80px);
  z-index: 2; pointer-events: none; transition: opacity 0.3s;
}
.works-rail-shell::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); opacity: 0; }
.works-rail-shell::after { right: 0; background: linear-gradient(270deg, var(--bg), transparent); }
.works-rail-shell.at-start::before { opacity: 0; }
.works-rail-shell:not(.at-start)::before { opacity: 1; }
.works-rail-shell.at-end::after { opacity: 0; }

.works-rail {
  display: flex;
  gap: clamp(18px, 2vw, 24px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: var(--gutter);
  padding-inline: max(var(--gutter), calc((100vw - var(--maxw)) / 2 + var(--gutter)));
  padding-bottom: 18px;
  scrollbar-width: none;
  cursor: grab;
  touch-action: pan-x pan-y;
}
.works-rail:active { cursor: grabbing; }
.works-rail::-webkit-scrollbar { display: none; }
.works-rail-end { flex: 0 0 1px; }

/* スクロール誘導キュー */
.works-scroll-cue {
  position: absolute; top: 50%; right: clamp(10px, 2vw, 26px);
  transform: translateY(-50%);
  display: flex; align-items: center; gap: 7px;
  padding: 9px 14px;
  background: color-mix(in srgb, var(--accent) 92%, black 8%);
  border-radius: 999px;
  box-shadow: 0 6px 22px -6px color-mix(in srgb, var(--accent) 70%, transparent);
  pointer-events: none; z-index: 3;
  animation: works-cue-in 0.4s var(--ease) both;
}
.works-scroll-cue-text {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: #fff;
}
.works-scroll-cue-arrow { display: flex; color: #fff; animation: works-cue-nudge 1.4s ease-in-out infinite; }
@keyframes works-cue-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}
@keyframes works-cue-in {
  from { opacity: 0; transform: translateY(-50%) translateX(8px); }
  to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.work-card {
  flex: 0 0 clamp(300px, 38vw, 440px);
  display: flex; flex-direction: column;
  scroll-snap-align: start;
}

/* YouTube thumbnail cards */
.work-thumb-wrap { position: relative; border-radius: var(--radius); overflow: hidden; }
.work-yt-thumb { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; transition: transform 0.6s var(--ease), filter 0.4s; }
.work-yt-clickable { cursor: pointer; }
.work-yt-clickable:hover .work-yt-thumb { transform: scale(1.03); filter: brightness(0.75); }
.work-play-btn {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.15);
  transition: background 0.3s;
  pointer-events: none;
}
.work-yt-clickable:hover .work-play-btn { background: rgba(0,0,0,0.35); }
.work-play-btn svg { filter: drop-shadow(0 2px 10px rgba(0,0,0,0.5)); transition: transform 0.3s; }
.work-yt-clickable:hover .work-play-btn svg { transform: scale(1.18); }
.work-num {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
  color: #fff; background: rgba(0,0,0,0.42); border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(6px); border-radius: 6px; padding: 4px 9px;
}

/* plain placeholder thumb */
.work-thumb { aspect-ratio: 16 / 10; transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease); }
.work-card:hover .work-thumb { transform: translateY(-4px); box-shadow: 0 30px 60px -28px var(--shadow); }
.work-thumb-wrap img { user-select: none; -webkit-user-drag: none; }

.work-meta { display: flex; flex-direction: column; gap: 6px; padding: 18px 4px 0; }
.work-cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.work-t { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.work-desc { font-size: 13px; color: var(--text-faint); line-height: 1.55; margin-top: 2px; text-wrap: pretty; }

/* YouTube video modal */
.yt-modal {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,0.9);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  backdrop-filter: blur(10px);
  animation: fb-modal-in 0.25s ease;
}
.yt-modal-close {
  position: absolute; top: 20px; right: 20px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  color: white; cursor: pointer; display: grid; place-items: center;
  padding: 0; appearance: none; -webkit-appearance: none; z-index: 1;
  transition: background 0.2s;
}
.yt-modal-close:hover { background: rgba(255,255,255,0.22); }
.yt-modal-inner {
  width: min(100%, 1100px); aspect-ratio: 16/9;
  background: #000; border-radius: 12px; overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.6);
}
.yt-modal-iframe { width: 100%; height: 100%; border: none; display: block; }

/* ---------- About ---------- */
.about { background: var(--bg-1); overflow: hidden; }
.about-wrap { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(44px, 5.5vw, 92px); align-items: center; }
.about-media { position: relative; }
/* 画像の青い発光に合わせたアンビエントグロー（背後に敷いて暗い背景に溶け込ませる） */
.about-media::before {
  content: "";
  position: absolute; inset: -14% -10% -18% -12%;
  background: radial-gradient(60% 60% at 42% 46%, color-mix(in srgb, var(--accent) 55%, transparent) 0%, transparent 70%);
  filter: blur(46px);
  opacity: 0.55;
  z-index: 0;
  pointer-events: none;
}
.about-portrait { aspect-ratio: 4 / 5; box-shadow: 0 40px 80px -34px var(--shadow); }
.about-portrait-img {
  position: relative;
  z-index: 1;
  aspect-ratio: 1755 / 1800;
  border-radius: var(--radius);
  overflow: hidden;
  background: #05070b;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border-2));
  box-shadow:
    0 50px 120px -40px color-mix(in srgb, var(--accent) 60%, transparent),
    0 30px 70px -30px rgba(0,0,0,0.7);
}
.about-portrait-img img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  display: block;
}
.about-stat-card {
  position: absolute; right: -8px; bottom: -22px;
  z-index: 2;
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  display: flex; flex-direction: column; gap: 2px;
  box-shadow: 0 24px 50px -22px var(--shadow);
}
.about-stat-n { font-size: 34px; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.about-stat-n span { color: var(--accent); }
.about-stat-l { font-size: 12px; color: var(--text-dim); white-space: nowrap; }
.about-body { color: var(--text-dim); font-size: clamp(15px, 1.4vw, 17px); }
.about-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.chip {
  font-size: 13px; padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--border-2); color: var(--text-dim); background: var(--bg-2);
}
.about-sign { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-faint); margin-top: 28px; letter-spacing: 0.02em; }
.about-more {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 22px;
  font-size: 14.5px; font-weight: 500; color: var(--accent);
  transition: gap 0.25s var(--ease);
}
.about-more:hover { gap: 12px; }

/* ---------- Workflow ---------- */
.flow { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.flow-line { position: absolute; top: 23px; left: 6%; right: 6%; height: 1px; background: linear-gradient(90deg, transparent, var(--border-2) 12%, var(--border-2) 88%, transparent); z-index: 0; }
.flow-step { position: relative; z-index: 1; }
button.flow-node {
  width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg); border: 1px solid var(--border-2);
  margin-bottom: 22px; cursor: pointer;
  padding: 0; appearance: none; -webkit-appearance: none;
  transition: border-color 0.4s var(--ease), background 0.4s, transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.flow-step:hover button.flow-node { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 0 0 4px var(--accent-soft); }
.flow-step-open button.flow-node { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 4px var(--accent-soft); transform: translateY(-3px); }
.flow-num { font-family: var(--font-mono); font-size: 14px; color: var(--accent); font-weight: 700; }
.flow-t { font-size: 16px; font-weight: 600; line-height: 1.4; letter-spacing: -0.01em; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.flow-note { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.04em; color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 5px; padding: 3px 8px; font-weight: 500; }
.flow-d { font-size: 13.5px; color: var(--text-dim); line-height: 1.6; margin-top: 12px; }

/* flow detail panel */
.flow-panel { max-height: 0; overflow: hidden; transition: max-height 0.45s var(--ease), margin-top 0.45s var(--ease); }
.flow-panel-open { max-height: 460px; margin-top: 28px; }
.flow-panel-content { display: none; }
.flow-panel-content.flow-panel-content-visible {
  display: grid; grid-template-columns: 44px 1fr auto; gap: 14px 20px; align-items: start;
  background: var(--bg-2); border: 1px solid var(--border-2); border-radius: var(--radius);
  padding: clamp(20px, 2vw, 28px);
}
.flow-panel-num { font-family: var(--font-mono); font-size: 20px; color: var(--accent); font-weight: 700; padding-top: 2px; line-height: 1; }
.flow-panel-t { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 10px; }
.flow-panel-d { font-size: 14px; color: var(--text-dim); line-height: 1.8; text-wrap: pretty; }
.flow-panel-close {
  width: 32px; height: 32px; border-radius: 50%; flex: none;
  display: grid; place-items: center; cursor: pointer;
  background: var(--bg-3); border: 1px solid var(--border);
  color: var(--text-dim); padding: 0; appearance: none; -webkit-appearance: none;
  transition: color 0.2s, background 0.2s;
}
.flow-panel-close:hover { color: var(--text); background: var(--bg); }

/* ---------- Price ---------- */
.price-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 2.4vw, 28px); }
.price-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(28px, 3vw, 40px);
  display: flex; flex-direction: column;
  position: relative;
  transition: transform 0.5s var(--ease), border-color 0.4s;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--border-2); }
.price-featured { border-color: var(--accent-line); box-shadow: 0 0 0 1px var(--accent-line), 0 40px 80px -40px var(--accent); }
.price-flag {
  position: absolute; top: -11px; left: clamp(28px, 3vw, 40px);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  background: var(--accent); color: var(--on-accent);
  padding: 4px 12px; border-radius: 999px;
}
.price-type { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-dim); }
.price-amt { display: flex; align-items: baseline; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.price-main { font-size: clamp(30px, 3.6vw, 42px); font-weight: 700; letter-spacing: -0.025em; }
.price-usd { font-size: 14px; color: var(--text-faint); font-family: var(--font-mono); }
.price-est { font-size: 14px; color: var(--text-dim); margin-top: 8px; }
.price-card .divider { margin: 22px 0 16px; }
.price-section-label { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 12px; }
.price-feats-wrap { flex: 1; display: flex; flex-direction: column; }
.price-feats { list-style: none; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.price-feats.price-feats-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.price-feats li { display: flex; align-items: center; gap: 11px; font-size: 14.5px; color: var(--text); }
.price-check { width: 20px; height: 20px; flex: none; border-radius: 50%; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); }
.price-uses { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.price-uses li { font-size: 13.5px; color: var(--text-dim); padding-left: 16px; position: relative; line-height: 1.55; }
.price-uses li::before { content: "—"; position: absolute; left: 0; color: var(--text-faint); }
.price-expand-btn {
  display: inline-flex; align-items: center; gap: 7px;
  margin-top: 22px; margin-bottom: 4px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  background: none; border: none; cursor: pointer; padding: 0;
  transition: opacity 0.2s;
}
.price-expand-btn:hover { opacity: 0.75; }
.price-expand-icon { transition: transform 0.3s var(--ease); }
.price-expand-icon.open { transform: rotate(180deg); }
.price-detail { max-height: 0; overflow: hidden; transition: max-height 0.45s var(--ease); }
.price-detail-open { max-height: 300px; }
.price-detail-inner { padding-top: 18px; border-top: 1px solid var(--border); margin-top: 4px; display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.price-detail-row { display: grid; grid-template-columns: 76px 1fr; gap: 8px 16px; }
.price-detail-k { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); padding-top: 3px; }
.price-detail-v { font-size: 13.5px; color: var(--text-dim); line-height: 1.7; text-wrap: pretty; }
.price-detail-note { font-size: 12px; color: var(--text-faint); }
.price-cta { margin-top: auto; justify-content: center; }
.price-payment-note { display: flex; align-items: flex-start; gap: 10px; margin-top: 28px; font-size: 13px; color: var(--text-dim); line-height: 1.7; max-width: 68ch; text-wrap: pretty; }
.price-payment-note .price-note-dot { margin-top: 7px; flex: none; }
.price-note-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .solve-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1000px) {
  .flow { grid-template-columns: 1fr; gap: 0; }
  .flow-line { display: none; }
  .flow-step { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding-bottom: 28px; }
  button.flow-node { margin-bottom: 0; }
  .flow-panel-open { max-height: 560px; }
  .about-wrap { grid-template-columns: 1fr; }
  .about-media { max-width: 460px; }
}
@media (max-width: 920px) {
  .price-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .works-head-r { align-items: flex-start; width: 100%; }
  .works-arrows { display: none; }
}
@media (max-width: 720px) {
  .price-grid { grid-template-columns: 1fr; }
  .price-feats-2col { grid-template-columns: 1fr; }
}