/* =============================================================
   포트폴리오 마켓플레이스 - portfolio.css
   라이트/다크 + 반응형 + 우측 슬라이드 모달
   ============================================================= */
:root {
  --pf-bg: #ffffff;
  --pf-surface: #ffffff;
  --pf-surface-2: #f7f8fa;
  --pf-surface-3: #f0f2f5;
  --pf-text: #111111;
  --pf-text-2: #4d4d4d;
  --pf-text-3: #808080;
  --pf-border: #e6e6e6;
  --pf-border-2: #dbdbdb;
  --pf-primary: #0055ff;
  --pf-primary-d: #0044cc;
  --pf-accent: #0055ff;
  --pf-radius: 16px;
  --pf-radius-sm: 10px;
  --pf-shadow: 0 4px 24px rgba(17,17,17,.06);
  --pf-shadow-lg: 0 18px 50px rgba(17,17,17,.12);
  --pf-header-h: 68px;
  --pf-max: 1240px;
}
html.dark {
  --pf-bg: #0c1320;
  --pf-surface: #111827;
  --pf-surface-2: #161f30;
  --pf-surface-3: #1b2433;
  --pf-text: #edf2f7;
  --pf-text-2: #afb5bd;
  --pf-text-3: #7f858f;
  --pf-border: #242a38;
  --pf-border-2: #2f3746;
  --pf-shadow: 0 4px 24px rgba(0,0,0,.35);
  --pf-shadow-lg: 0 18px 50px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.pf-body {
  margin: 0; background: var(--pf-bg); color: var(--pf-text);
  font-family: "Pretendard", -apple-system, sans-serif; line-height: 1.6;
  word-break: keep-all; overflow-x: hidden;
  transition: background .3s, color .3s;
}
a { color: inherit; text-decoration: none; }
.material-symbols-outlined { font-variation-settings: 'FILL' 0, 'wght' 500, 'opsz' 24; vertical-align: middle; line-height: 1; }

/* ── 버튼 ── */
.pf-btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid transparent; border-radius: 999px; font-weight: 700; cursor: pointer;
  font-size: 14px; padding: 11px 20px; transition: all .18s; white-space: nowrap; font-family: inherit; }
.pf-btn:hover { transform: translateY(-1px); }
.pf-btn-sm { padding: 8px 15px; font-size: 13px; }
.pf-btn-lg { padding: 14px 26px; font-size: 15px; }
.pf-btn-primary { background: var(--pf-text); color: var(--pf-bg); border-color: var(--pf-text); }
.pf-btn-primary:hover { background: var(--pf-primary); border-color: var(--pf-primary); color: #fff; }
html.dark .pf-btn-primary { background: var(--pf-primary); border-color: var(--pf-primary); color: #fff; }
.pf-btn-outline { background: transparent; border-color: var(--pf-border-2); color: var(--pf-text); }
.pf-btn-outline:hover { border-color: var(--pf-text); }
.pf-btn-ghost { background: transparent; color: var(--pf-text-2); }
.pf-btn-ghost:hover { color: var(--pf-text); background: var(--pf-surface-2); }
.pf-btn-light { background: #fff; color: #111; border-color: #fff; }
.pf-btn-light:hover { background: var(--pf-primary); border-color: var(--pf-primary); color: #fff; }
.pf-btn-like { background: transparent; border-color: var(--pf-border-2); color: var(--pf-text); }
.pf-btn-like .material-symbols-outlined { color: #ff2d6f; }
.pf-btn-like.liked { border-color: #ff2d6f; color: #ff2d6f; }
.pf-icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  border: 0; border-radius: 999px; background: transparent; color: var(--pf-text); cursor: pointer; transition: background .15s; }
.pf-icon-btn:hover { background: var(--pf-surface-2); }

/* ── 헤더 ── */
.pf-header { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid transparent; transition: all .25s; }
html.dark .pf-header { background: rgba(12,19,32,.82); }
.pf-header.scrolled { border-bottom-color: var(--pf-border); box-shadow: var(--pf-shadow); }
.pf-header-inner { max-width: var(--pf-max); margin: 0 auto; height: var(--pf-header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 24px; }
.pf-brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 900; font-size: 19px; letter-spacing: -.03em; }
.pf-brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px;
  background: var(--pf-primary); color: #fff; border-radius: 9px; font-size: 17px; }
.pf-brand-dot { color: var(--pf-primary); }
.pf-nav { display: flex; align-items: center; gap: 28px; }
.pf-nav-link { font-size: 15px; font-weight: 600; color: var(--pf-text-2); position: relative; transition: color .15s; }
.pf-nav-link:hover { color: var(--pf-primary); }
.pf-header-actions { display: flex; align-items: center; gap: 8px; }
.pf-nav-toggle { display: none; }
.pf-mobile-nav { display: none; }

/* ── 공통 섹션 ── */
.pf-main { display: block; }
.pf-section { max-width: var(--pf-max); margin: 0 auto; padding: 88px 24px; }
.pf-section-alt { max-width: none; background: var(--pf-surface-2); }
.pf-section-alt > * { max-width: var(--pf-max); margin-left: auto; margin-right: auto; }
.pf-section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.pf-section-eyebrow { font-size: 13px; font-weight: 800; letter-spacing: .14em; color: var(--pf-primary); text-transform: uppercase; }
.pf-section-title { margin: 12px 0 0; font-size: clamp(1.8rem, 3.4vw, 2.4rem); font-weight: 900; letter-spacing: -.04em; line-height: 1.2; }
.pf-section-desc { margin: 14px 0 0; font-size: 1.02rem; color: var(--pf-text-2); line-height: 1.8; }

/* ── HERO ── */
.pf-hero { position: relative; padding: calc(var(--pf-header-h) + 70px) 24px 70px; overflow: hidden; }
.pf-hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 80% -10%, rgba(0,85,255,.10), transparent 60%),
    radial-gradient(50rem 38rem at 0% 10%, rgba(124,58,237,.08), transparent 60%); }
.pf-hero-inner { position: relative; z-index: 1; max-width: var(--pf-max); margin: 0 auto; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.pf-hero-left { min-width: 0; }
.pf-hero-content { max-width: 760px; }
.pf-hero-right { min-width: 0; }
.pf-hero-visual { position: relative; }
.pf-hero-svg { width: 100%; height: auto; display: block; }
.pf-hero-svg .pf-svg-nodes circle { fill: var(--pf-surface); stroke: var(--pf-border-2); stroke-width: 2; }
.pf-hero-svg .pf-svg-ring { fill: none; stroke: color-mix(in srgb, var(--pf-primary) 35%, transparent); stroke-width: 2; stroke-dasharray: 5 7; transform-origin: 230px 210px; animation: pfSpin 26s linear infinite; }
.pf-hero-svg .pf-svg-hub { fill: url(#pfGrad); }
.pf-hero-svg .pf-svg-lines path { stroke-dasharray: 6 8; animation: pfDash 3.2s linear infinite; }
@keyframes pfSpin { to { transform: rotate(360deg); } }
@keyframes pfDash { to { stroke-dashoffset: -28; } }
.pf-hero-visual-badges { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-top: 14px; }
.pf-hero-vbadge { display: inline-flex; align-items: center; gap: 5px; padding: 7px 13px; border-radius: 999px;
  background: var(--pf-surface); border: 1px solid var(--pf-border); box-shadow: var(--pf-shadow);
  font-size: .82rem; font-weight: 700; color: var(--pf-text-2); }
.pf-hero-vbadge .material-symbols-outlined { font-size: 17px; color: var(--pf-primary); }
@media (prefers-reduced-motion: reduce) { .pf-svg-ring, .pf-svg-lines path { animation: none; } }
.pf-hero-eyebrow { font-size: 13px; font-weight: 800; letter-spacing: .16em; color: var(--pf-primary); }
.pf-hero-title { margin: 16px 0 0; font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 900; letter-spacing: -.05em; line-height: 1.1; }
.pf-hero-title span { display: block; }
.pf-hero-title-muted { font-weight: 500; color: var(--pf-text-2); }
.pf-hero-title-accent { color: var(--pf-primary); display: inline; }
.pf-hero-desc { margin: 22px 0 0; max-width: 640px; font-size: 1.12rem; color: var(--pf-text-2); line-height: 1.8; }
.pf-hero-cta { margin: 32px 0 0; display: flex; flex-wrap: wrap; gap: 12px; }
.pf-hero-metrics { margin: 60px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 720px; }
.pf-hero-metric { border-left: 2px solid var(--pf-border); padding-left: 18px; }
.pf-hero-metric-value { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 900; letter-spacing: -.04em; color: var(--pf-primary); }
.pf-hero-metric-label { margin-top: 4px; font-size: .9rem; font-weight: 600; color: var(--pf-text-2); }

/* ── 제품 그리드 ── */
.pf-product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pf-product-card { display: flex; flex-direction: column; background: var(--pf-surface); border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius); padding: 24px; transition: transform .2s, box-shadow .2s, border-color .2s; position: relative; overflow: hidden; }
.pf-product-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--pf-accent); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.pf-product-card:hover { transform: translateY(-4px); box-shadow: var(--pf-shadow-lg); border-color: transparent; }
.pf-product-card:hover::before { transform: scaleX(1); }
.pf-product-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.pf-product-icon { display: inline-flex; align-items: center; justify-content: center; width: 50px; height: 50px;
  border-radius: 13px; background: color-mix(in srgb, var(--pf-accent) 12%, transparent); color: var(--pf-accent); }
.pf-product-icon .material-symbols-outlined { font-size: 28px; }
.pf-badge-hot { font-size: 11px; font-weight: 800; color: #fff; background: var(--pf-accent); padding: 3px 9px; border-radius: 999px; }
.pf-product-cat { font-size: 12px; font-weight: 700; color: var(--pf-accent); letter-spacing: .04em; }
.pf-product-name { margin: 6px 0 0; font-size: 1.2rem; font-weight: 800; letter-spacing: -.03em; }
.pf-product-tagline { margin: 6px 0 0; font-size: .9rem; font-weight: 600; color: var(--pf-text-2); }
.pf-product-summary { margin: 12px 0 0; font-size: .88rem; color: var(--pf-text-3); line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.pf-product-foot { margin-top: auto; padding-top: 18px; display: flex; align-items: center; justify-content: space-between; }
.pf-product-price { font-size: .9rem; font-weight: 800; }
.pf-product-more { display: inline-flex; align-items: center; gap: 3px; font-size: .85rem; font-weight: 700; color: var(--pf-accent); }
.pf-product-more .material-symbols-outlined { font-size: 17px; transition: transform .2s; }
.pf-product-card:hover .pf-product-more .material-symbols-outlined { transform: translateX(3px); }

/* ── WHY + 차트 ── */
.pf-why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.pf-why-text .pf-section-title { text-align: left; }
.pf-why-list { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 12px; }
.pf-why-list li { display: flex; align-items: flex-start; gap: 10px; font-size: .98rem; font-weight: 600; color: var(--pf-text-2); }
.pf-why-list .material-symbols-outlined { color: var(--pf-primary); font-size: 20px; flex-shrink: 0; }
.pf-why-chart { display: grid; gap: 18px; }
.pf-chart-card { background: var(--pf-surface); border: 1px solid var(--pf-border); border-radius: var(--pf-radius); padding: 20px; box-shadow: var(--pf-shadow); position: relative; }
.pf-chart-title { font-size: .95rem; font-weight: 800; margin-bottom: 14px; }
/* 차트 무한 늘어남 방지: 캔버스 부모에 고정 높이 부여 (maintainAspectRatio:false 필수 조건) */
.pf-chart-canvas-box { position: relative; height: 240px; }
.pf-chart-canvas-box--sm { height: 200px; }
.pf-chart-card canvas { width: 100% !important; height: 100% !important; display: block; }

/* ── CTA ── */
.pf-cta { max-width: var(--pf-max); margin: 0 auto 88px; padding: 64px 24px; text-align: center;
  background: linear-gradient(135deg, #0a1a3f, #0c1320); border-radius: 28px; color: #fff; }
html.dark .pf-cta { background: linear-gradient(135deg, #14294a, #161f30); border: 1px solid var(--pf-border); }
.pf-cta-title { font-size: clamp(1.6rem, 3.2vw, 2.2rem); font-weight: 900; letter-spacing: -.04em; margin: 0; color: #fff; }
.pf-cta-desc { margin: 14px 0 28px; color: #c5cdda; font-size: 1.05rem; }
.pf-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ── 상세 HERO ── */
.pf-detail-hero { position: relative; padding: calc(var(--pf-header-h) + 56px) 24px 56px; overflow: hidden;
  background: linear-gradient(180deg, color-mix(in srgb, var(--pf-accent) 9%, var(--pf-bg)), var(--pf-bg)); }
.pf-detail-hero-inner { max-width: var(--pf-max); margin: 0 auto; }
.pf-back-link { display: inline-flex; align-items: center; gap: 4px; font-size: .9rem; font-weight: 700; color: var(--pf-text-2); margin-bottom: 22px; }
.pf-back-link:hover { color: var(--pf-accent); }
.pf-detail-hero-main { max-width: 760px; }
.pf-detail-icon { display: inline-flex; align-items: center; justify-content: center; width: 64px; height: 64px;
  border-radius: 17px; background: var(--pf-accent); color: #fff; margin-bottom: 18px; }
.pf-detail-icon .material-symbols-outlined { font-size: 36px; }
.pf-detail-cat { font-size: 13px; font-weight: 700; color: var(--pf-accent); letter-spacing: .05em; }
.pf-detail-title { margin: 8px 0 0; font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; letter-spacing: -.05em; line-height: 1.12; }
.pf-detail-tagline { margin: 14px 0 0; font-size: 1.2rem; font-weight: 700; color: var(--pf-text); }
.pf-detail-summary { margin: 14px 0 0; font-size: 1.05rem; color: var(--pf-text-2); line-height: 1.8; }
.pf-detail-actions { margin: 30px 0 0; display: flex; flex-wrap: wrap; gap: 12px; }
.pf-detail-metrics { margin: 48px 0 0; display: flex; flex-wrap: wrap; gap: 40px; }
.pf-detail-metric-value { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 900; letter-spacing: -.04em; color: var(--pf-accent); }
.pf-detail-metric-label { margin-top: 4px; font-size: .9rem; font-weight: 600; color: var(--pf-text-2); }

/* ── 기능 카드 ── */
.pf-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pf-feature-card { background: var(--pf-surface); border: 1px solid var(--pf-border); border-radius: var(--pf-radius); padding: 28px; transition: transform .2s, box-shadow .2s; }
.pf-feature-card:hover { transform: translateY(-3px); box-shadow: var(--pf-shadow); }
.pf-feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px;
  border-radius: 12px; background: color-mix(in srgb, var(--pf-accent) 12%, transparent); color: var(--pf-accent); margin-bottom: 16px; }
.pf-feature-icon .material-symbols-outlined { font-size: 26px; }
.pf-feature-title { margin: 0 0 8px; font-size: 1.1rem; font-weight: 800; letter-spacing: -.02em; }
.pf-feature-desc { margin: 0; font-size: .92rem; color: var(--pf-text-2); line-height: 1.7; }

/* ── 아키텍처 섹션(좌우 교차) ── */
.pf-arch-track { display: flex; flex-direction: column; gap: clamp(3.5rem, 7vw, 6rem); }
.pf-arch-section { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.pf-arch-section:nth-child(even) { grid-template-columns: .95fr 1.05fr; }
.pf-arch-section:nth-child(even) .pf-arch-media { order: 2; }
.pf-arch-media { position: relative; aspect-ratio: 16/10; border-radius: var(--pf-radius); overflow: hidden; border: 1px solid var(--pf-border); background: var(--pf-surface-2); }
.pf-arch-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pf-arch-media-ph { display: flex; align-items: center; justify-content: center; height: 100%;
  background: linear-gradient(135deg, color-mix(in srgb, var(--pf-accent) 14%, transparent), transparent); }
.pf-arch-media-ph .material-symbols-outlined { font-size: 84px; color: var(--pf-accent); opacity: .55; }
.pf-arch-title { margin: 0; font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 900; letter-spacing: -.04em; }
.pf-arch-lead { margin: 12px 0 0; font-size: 1.05rem; font-weight: 700; color: var(--pf-text); }
.pf-arch-desc { margin: 12px 0 0; font-size: 1rem; color: var(--pf-text-2); line-height: 1.8; }
.pf-arch-reasons { margin: 20px 0 0; display: grid; gap: 10px; }
.pf-arch-reason { display: flex; align-items: flex-start; gap: 9px; margin: 0; font-size: .92rem; font-weight: 600; color: var(--pf-text-2); }
.pf-arch-reason .material-symbols-outlined { font-size: 19px; flex-shrink: 0; }

/* ── 상세 CTA ── */
.pf-detail-cta { max-width: var(--pf-max); margin: 0 auto; padding: 72px 24px 96px; text-align: center; }
.pf-detail-cta .pf-cta-title { color: var(--pf-text); }
.pf-detail-cta .pf-cta-desc { color: var(--pf-text-2); }

/* ── 푸터 ── */
.pf-footer { background: var(--pf-surface-2); border-top: 1px solid var(--pf-border); }
.pf-footer-inner { max-width: var(--pf-max); margin: 0 auto; padding: 56px 24px 32px; }
.pf-footer-top { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; }
.pf-footer-desc { margin: 14px 0 18px; color: var(--pf-text-2); font-size: .95rem; max-width: 320px; }
.pf-footer-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pf-footer-col h4 { margin: 0 0 14px; font-size: .8rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--pf-text-3); }
.pf-footer-col a { display: block; padding: 5px 0; font-size: .92rem; color: var(--pf-text-2); }
.pf-footer-col a:hover { color: var(--pf-primary); }
.pf-footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--pf-border); font-size: .85rem; color: var(--pf-text-3); }

/* ── 맨위 버튼 ── */
.pf-top-fab { position: fixed; right: 22px; bottom: 22px; z-index: 40; width: 46px; height: 46px; border: 1px solid var(--pf-border);
  border-radius: 999px; background: var(--pf-surface); color: var(--pf-text); cursor: pointer; box-shadow: var(--pf-shadow);
  opacity: 0; transform: translateY(10px); pointer-events: none; transition: all .25s; }
.pf-top-fab.show { opacity: 1; transform: translateY(0); pointer-events: auto; }

/* ── 우측 슬라이드 모달 ── */
.pf-modal { position: fixed; inset: 0; z-index: 100; visibility: hidden; }
.pf-modal.open { visibility: visible; }
.pf-modal-backdrop { position: absolute; inset: 0; background: rgba(8,12,24,.55); opacity: 0; transition: opacity .3s; }
.pf-modal.open .pf-modal-backdrop { opacity: 1; }
.pf-modal-panel { position: absolute; top: 0; right: 0; height: 100%; width: min(480px, 100%); background: var(--pf-surface);
  display: flex; flex-direction: column; box-shadow: var(--pf-shadow-lg); transform: translateX(100%); transition: transform .32s cubic-bezier(.4,0,.2,1); }
.pf-modal.open .pf-modal-panel { transform: translateX(0); }
.pf-modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 22px 22px 16px; border-bottom: 1px solid var(--pf-border); }
.pf-modal-title { margin: 0; font-size: 1.3rem; font-weight: 900; letter-spacing: -.03em; }
.pf-modal-sub { margin: 6px 0 0; font-size: .88rem; color: var(--pf-text-2); line-height: 1.6; }
.pf-modal-body { flex: 1; overflow-y: auto; padding: 20px 22px; }
.pf-modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 16px 22px; border-top: 1px solid var(--pf-border); }
.pf-field { margin-bottom: 16px; }
.pf-field label { display: block; margin-bottom: 7px; font-size: .82rem; font-weight: 700; color: var(--pf-text); }
.pf-field label em { color: #e5484d; font-style: normal; }
.pf-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pf-input { width: 100%; border: 1px solid var(--pf-border-2); border-radius: var(--pf-radius-sm); background: var(--pf-surface-2);
  padding: 11px 13px; font-size: 15px; color: var(--pf-text); font-family: inherit; transition: border-color .15s; }
.pf-input:focus { outline: none; border-color: var(--pf-primary); }
textarea.pf-input { resize: vertical; min-height: 110px; }
.pf-consent { display: flex; align-items: flex-start; gap: 9px; margin-top: 4px; font-size: .85rem; color: var(--pf-text-2); cursor: pointer; }
.pf-consent input { margin-top: 3px; flex-shrink: 0; }
.pf-consent small { display: block; margin-top: 3px; font-size: .75rem; color: var(--pf-text-3); line-height: 1.5; }
.pf-form-status { min-height: 20px; margin: 12px 0 0; font-size: .85rem; font-weight: 700; color: var(--pf-primary); }

/* ── 토스트 ── */
.pf-toast-wrap { position: fixed; top: 80px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.pf-toast { padding: 12px 20px; border-radius: 999px; background: var(--pf-text); color: var(--pf-bg); font-size: .9rem; font-weight: 700;
  box-shadow: var(--pf-shadow-lg); opacity: 0; transform: translateY(-10px); transition: all .3s; max-width: 90vw; }
.pf-toast.show { opacity: 1; transform: translateY(0); }
.pf-toast-success { background: #16a34a; color: #fff; }
.pf-toast-error { background: #e5484d; color: #fff; }
.pf-toast-info { background: var(--pf-primary); color: #fff; }

/* ── 반응형 ── */
@media (max-width: 1023px) {
  .pf-hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .pf-hero-right { display: none; }
  .pf-product-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-why-grid { grid-template-columns: 1fr; gap: 36px; }
  .pf-arch-section, .pf-arch-section:nth-child(even) { grid-template-columns: 1fr; gap: 1.5rem; }
  .pf-arch-section:nth-child(even) .pf-arch-media { order: 0; }
}
@media (max-width: 767px) {
  .pf-nav { display: none; }
  .pf-nav-toggle { display: inline-flex; }
  .pf-section { padding: 60px 20px; }
  .pf-product-grid { grid-template-columns: 1fr; }
  .pf-feature-grid { grid-template-columns: 1fr; }
  .pf-hero-metrics { grid-template-columns: 1fr; gap: 16px; max-width: none; }
  .pf-footer-top { grid-template-columns: 1fr; gap: 28px; }
  .pf-grid2 { grid-template-columns: 1fr; }
  .pf-modal-panel { width: 100%; }
  body.pf-nav-open .pf-mobile-nav { display: flex; }
  .pf-mobile-nav { position: fixed; top: var(--pf-header-h); left: 0; right: 0; z-index: 49; flex-direction: column;
    background: var(--pf-surface); border-bottom: 1px solid var(--pf-border); padding: 8px 24px 16px; box-shadow: var(--pf-shadow); }
  .pf-mobile-nav a { padding: 12px 0; font-size: 1rem; font-weight: 600; border-bottom: 1px solid var(--pf-border); }
  .pf-detail-metrics { gap: 24px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } [data-aos] { opacity: 1 !important; transform: none !important; } }