/*============================================================+
  assist.parta.app — assist.css
  (c) 2026 ae Aeonian Engineering Limited
  Gold: dark #c9a84c / light #96711e
  Inherits fonts.css and style.css from server.
  NO external font requests.
+============================================================*/

/* ── Theme variables — on html so they cascade everywhere ───────────────────── */
html {
  --bg-page:  #0e0e0e;
  --bg-sect1: #141414;
  --bg-sect2: #0e0e0e;
  --bg-shots: #141414;
  --tx-main:  #f0ede8;
  --accent:   #c9a84c;
  --accent2:  #e6c96e;
  --border-s: rgba(255,255,255,0.04);
  --border-m: rgba(255,255,255,0.07);
  --border-l: rgba(255,255,255,0.10);
  --card-bg:  rgba(255,255,255,0.03);
  --card-bd:  rgba(255,255,255,0.07);
  --term-bg:  #1a1a1a;
  --term-bd:  rgba(255,255,255,0.06);
  --inp-bd:   rgba(240,237,232,0.18);
  --infog-good-bg: rgba(201,168,76,0.04);
  --stage-top: rgba(255,255,255,0.06);
  --scroll-bg: #0e0e0e;
}
html[data-theme="light"] {
  --bg-page:  #f2efe9;
  --bg-sect1: #ebe8e1;
  --bg-sect2: #f2efe9;
  --bg-shots: #ebe8e1;
  --tx-main:  #1a1a1a;
  --accent:   #96711e;
  --accent2:  #c9a84c;
  --border-s: rgba(0,0,0,0.08);
  --border-m: rgba(0,0,0,0.12);
  --border-l: rgba(0,0,0,0.16);
  --card-bg:  rgba(0,0,0,0.06);
  --card-bd:  rgba(0,0,0,0.14);
  --term-bg:  #1a1a1a;
  --term-bd:  rgba(255,255,255,0.06);
  --inp-bd:   rgba(0,0,0,0.28);
  --infog-good-bg: rgba(150,113,30,0.08);
  --stage-top: rgba(0,0,0,0.10);
  --scroll-bg: #f2efe9;
}

/* ── Base ───────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; background: var(--bg-page); }

body {
  background: var(--bg-page);
  color: var(--tx-main);
  font-family: var(--font-body);
  overflow: hidden;
  height: 100svh;
  transition: background 0.25s, color 0.25s;
}

/* ── Scroll wrap ────────────────────────────────────────────────────────────── */
.pi-scroll-wrap {
  height: 100svh;
  overflow-y: hidden;
  background: var(--scroll-bg);
  -webkit-overflow-scrolling: touch;
  transition: background 0.25s;
}

.snap-section { scroll-snap-align: start; scroll-snap-stop: always; }

/* ── Corner nav ─────────────────────────────────────────────────────────────── */
.c-nav {
  position: fixed;
  top: 28px; right: 32px;
  z-index: 200;
  display: flex; align-items: center; gap: 16px;
}
.c-nav a {
  font-family: var(--font-mono);
  font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase;
  opacity: 0.35; color: inherit; text-decoration: none; transition: opacity 0.2s;
}
.c-nav a:hover { opacity: 1; }
.c-nav__theme {
  background: none; border: none; cursor: pointer;
  font-size: 1rem; opacity: 0.35; color: inherit; transition: opacity 0.2s;
}
.c-nav__theme:hover { opacity: 1; }

/* ── Lang dropdown ──────────────────────────────────────────────────────────── */
.lang-wrap { position: relative; }
.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase;
  opacity: 0.35; color: inherit; background: transparent;
  border: none; cursor: pointer; outline: none; transition: opacity 0.2s; padding: 0;
}
.lang-btn:hover, .lang-btn.open { opacity: 1; }
.lang-dropdown {
  display: none;
  position: fixed; top: 48px; right: 12px;
  background: #1a1a1a; color: #f0ede8;
  border-radius: 4px; min-width: 180px; max-height: 320px; overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5); z-index: 9999;
}
.lang-dropdown.open { display: block; }
.lang-dropdown a {
  display: block; padding: 9px 16px;
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: #f0ede8; text-decoration: none; opacity: 0.5;
  transition: opacity 0.15s, background 0.15s;
}
.lang-dropdown a:hover { opacity: 1; background: rgba(255,255,255,0.06); }
.lang-dropdown a.active { opacity: 1; color: var(--accent); }

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.pi-hero {
  height: 100svh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: var(--bg-page);
}

.pi-hero__content {
  position: relative; z-index: 2;
  text-align: center; padding: 0 24px;
  display: flex; flex-direction: column; align-items: center;
}

.pi-hero__logo {
  width: clamp(180px, 28vw, 340px);
  height: clamp(180px, 28vw, 340px);
  margin: 0 auto 20px;
  display: block;
  opacity: 0; animation: fadeUp 1s ease 0.3s forwards;
}
.pi-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent); opacity: 0;
  animation: fadeUp 1s ease 0.5s forwards;
  margin-bottom: 10px;
}
.pi-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 5rem);
  font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; line-height: 1.0;
  margin-bottom: 20px;
  opacity: 0; animation: fadeUp 1s ease 0.7s forwards;
}
.pi-hero__sub {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; line-height: 1.9;
  max-width: 390px; margin: 0 auto 32px;
  opacity: 0; animation: fadeUp 1s ease 0.9s forwards;
}
.pi-hero__cta {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 1s ease 1.1s forwards;
}
.pi-hero__cta a {
  font-family: var(--font-mono);
  font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase;
  padding: 11px 26px; border-radius: 2px; text-decoration: none; transition: opacity 0.2s;
}
.pi-hero__cta a:hover { opacity: 0.78; }
.cta-primary { background: #c9a84c; color: #0e0e0e; font-weight: 600; }
.cta-ghost   { border: 1px solid var(--border-l); color: var(--tx-main); opacity: 0.65; }

/* Urgency bar */
.pi-hero__urgency {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); opacity: 0.65; white-space: nowrap;
  opacity: 0; animation: fadeUp 1s ease 1.4s forwards;
}
.urgency-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #c9a84c;
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 0.5; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.1); }
}

.pi-scroll-hint {
  position: absolute; bottom: 28px; left: 50%;
  transform: translateX(-50%); z-index: 2;
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--tx-main); opacity: 0.25; text-align: center;
  opacity: 0; animation: fadeUp 1s ease 1.6s forwards;
}
.pi-scroll-hint::after {
  content: ''; display: block;
  width: 1px; height: 24px; background: var(--tx-main);
  margin: 7px auto 0; opacity: 0.2;
  animation: lineDown 2.4s ease 2s infinite;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes lineDown {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── Case sections ──────────────────────────────────────────────────────────── */
.pi-case {
  height: 100svh;
  display: flex; align-items: center;
  border-top: 1px solid var(--border-s);
}
[data-theme="light"] .pi-case { border-top-color: rgba(0,0,0,0.06); }
.pi-case:nth-child(odd)  { background: var(--bg-sect1); }
.pi-case:nth-child(even) { background: var(--bg-sect2); }



.pi-case__wrap {
  width: 100%; max-width: 960px; margin: 0 auto; padding: 0 48px;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: center;
}
.pi-case__wrap.flip { direction: rtl; }
.pi-case__wrap.flip > * { direction: ltr; }

.pi-case__sector {
  font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.22em; text-transform: uppercase;
  opacity: 0.4; margin-bottom: 18px;
}
.pi-case__headline {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.2vw, 2.8rem);
  font-weight: 700; letter-spacing: 0.01em; line-height: 1.08;
  margin-bottom: 22px;
}
.pi-case__text {
  font-size: 0.88rem; line-height: 1.85; opacity: 0.6; margin-bottom: 14px;
}
.pi-case__module {
  font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.32;
  margin-top: 8px;
}

/* ── Infographic: before/after ──────────────────────────────────────────────── */
.pi-infographic {
  display: flex; flex-direction: column; gap: 0;
  background: var(--card-bg);
  border: 1px solid var(--card-bd);
  border-radius: 8px; overflow: hidden;
}

.infog-col { padding: 24px 28px; }
.infog-col--bad { background: rgba(255,255,255,0.01); }
.infog-col--good { background: var(--infog-good-bg); }

.infog-divider { height: 1px; background: var(--card-bd); }

.infog-label {
  font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.16em; text-transform: uppercase;
  opacity: 0.5; margin-bottom: 14px;
}
.infog-row {
  display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
}
.infog-node {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em;
  padding: 7px 12px; border-radius: 4px; white-space: nowrap; flex-shrink: 0;
  border: 1px solid var(--border-l);
}

.infog-node--dim { opacity: 0.3; }
.infog-node--center { background: var(--card-bg); }

.infog-node--dark { }
.infog-node--gold { border-color: rgba(201,168,76,0.5); color: #c9a84c; }
.infog-node--locked { border-color: rgba(255,255,255,0.12); }
.infog-arrow { font-size: 0.8rem; opacity: 0.3; flex-shrink: 0; }
.infog-arrow--dim { opacity: 0.15; }
.infog-tag {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em;
  text-transform: uppercase;
}
.infog-tag--bad  { opacity: 0.35; color: inherit; }
.infog-tag--good { color: var(--accent); opacity: 0.8; }

/* ── Stage lifecycle ────────────────────────────────────────────────────────── */
.pi-stages {
  background: var(--card-bg);
  border: 1px solid var(--card-bd);
  border-radius: 8px; padding: 28px 28px;
  display: flex; flex-direction: column; gap: 16px;
}

.stage-header { display: flex; align-items: center; justify-content: space-between; }
.stage-agent-name { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; }
.stage-badge {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 20px;
}
.stage-badge--running { background: rgba(61,220,132,0.12); color: #3ddc84; }
.stage-list { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--stage-top); padding-top: 14px; }

.stage-item { display: flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; opacity: 0.35; }
.stage-item--done   { opacity: 0.5; }
.stage-item--active { opacity: 1; color: var(--tx-main); }

.stage-item--pending { opacity: 0.2; }
.stage-icon { width: 16px; text-align: center; flex-shrink: 0; }
.stage-item--done .stage-icon { color: #3ddc84; }
.stage-item--active .stage-icon { color: var(--accent); }
.stage-spin { display: inline-block; animation: spin 1.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.stage-sig {
  border-top: 1px solid var(--stage-top);
  padding-top: 12px; display: flex; flex-direction: column; gap: 2px;
}

.sig-label { font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.3; }
.sig-val   { font-family: var(--font-mono); font-size: 0.65rem; color: var(--accent); opacity: 0.8; }
.stage-approve-btn {
  width: 100%; padding: 11px;
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.3);
  color: #c9a84c;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase;
  cursor: pointer; border-radius: 3px; transition: background 0.15s;
}
.stage-approve-btn:hover { background: rgba(201,168,76,0.2); }

/* ── Screenshots ────────────────────────────────────────────────────────────── */
.pi-shots {
  height: 100svh;
  display: flex; align-items: center; justify-content: center;
  padding: 60px 24px;
  border-top: 1px solid var(--border-s);
  background: var(--bg-shots);
}

.pi-shots__inner { max-width: 720px; width: 100%; margin: 0 auto; text-align: center; }
.pi-shots__row {
  display: flex; justify-content: center; align-items: center;
  gap: 16px; flex-wrap: nowrap; margin-top: 36px;
}

/* Straight mockup frames — no rotation */
.mockup-wrapper {
  width: 180px; flex-shrink: 0;
  background: #000;
  border: 6px solid var(--border-l);
  border-radius: 28px; overflow: hidden;
  aspect-ratio: 9 / 19.5;
  box-shadow: 0 20px 50px rgba(0,0,0,0.45);
}

.feature-img { width: 100%; height: 100%; object-fit: cover; display: block; }

.pi-shots__note {
  margin-top: 28px;
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em;
  text-transform: uppercase; opacity: 0.3;
}

/* ── Register ───────────────────────────────────────────────────────────────── */
.pi-register {
  height: 100svh;
  display: flex; align-items: center; justify-content: center;
  padding: 60px 24px 100px; overflow-y: auto;
  border-top: 1px solid var(--border-s);
  background: var(--bg-page);
  position: relative;
}

.pi-register__inner { width: 100%; max-width: 420px; }
.pi-register__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700; letter-spacing: 0.03em; margin-bottom: 6px;
}
.pi-register__sub {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em;
  text-transform: uppercase; opacity: 0.35; margin-bottom: 12px;
}
.pi-register__desc {
  font-size: 0.82rem; line-height: 1.7; opacity: 0.55; margin-bottom: 24px;
}
.pi-field  { margin-bottom: 14px; }
.pi-row    { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pi-label  {
  display: block; font-family: var(--font-mono);
  font-size: 0.58rem; letter-spacing: 0.14em; text-transform: uppercase;
  opacity: 0.38; margin-bottom: 5px;
}
.pi-input {
  width: 100%; background: transparent; border: none;
  border-bottom: 1px solid var(--inp-bd);
  padding: 8px 0; font-family: var(--font-body); font-size: 0.88rem;
  color: inherit; outline: none; transition: border-color 0.2s;
}

.pi-input:focus { border-bottom-color: var(--accent); }
.pi-input::placeholder { opacity: 0.22; }
.pi-input option { background: #1a1a1a; color: #f0ede8; }
[data-theme="light"] .pi-input option { background: #f2efe9; color: #1a1a1a; }
.pi-gdpr { margin-top: 6px; }
.pi-gdpr span { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0.45; line-height: 1.6; }
.pi-gdpr a { color: var(--accent); text-decoration: none; }
.pi-error  { font-size: 0.72rem; color: #c0392b; margin-top: 3px; display: none; }
.pi-submit {
  width: 100%; margin-top: 22px; padding: 14px;
  background: #c9a84c; color: #0e0e0e;
  border: none; font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  cursor: pointer; border-radius: 2px; transition: opacity 0.2s; font-weight: 600;
}
.pi-submit:hover    { opacity: 0.82; }
.pi-submit:disabled { opacity: 0.4; cursor: not-allowed; }
.pi-success { text-align: center; padding: 36px 0; }
.pi-success__title { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 8px; color: var(--accent); }
.pi-success__sub   { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; opacity: 0.38; }
.pi-pricing-note {
  margin-top: 16px; font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.28; text-align: center;
}
.pi-pricing-note a { color: inherit; text-decoration: underline; }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.pi-footer {
  padding: 24px 48px;
  border-top: 1px solid var(--border-s);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}

.pi-footer p, .pi-footer a {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.1em;
  text-transform: uppercase; opacity: 0.28; color: inherit; text-decoration: none; transition: opacity 0.2s;
}
.pi-footer a:hover { opacity: 0.8; }
.pi-footer__links { display: flex; gap: 20px; flex-wrap: wrap; }

.pi-footer--abs {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  border-top: 1px solid var(--border-s);
  background: transparent;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 700px) {
  .pi-case__wrap { grid-template-columns: 1fr; gap: 32px; padding: 0 24px; }
  .pi-case__wrap.flip { direction: ltr; }
  .pi-infographic, .pi-stages { display: none; }
  .mockup-wrapper { width: 26vw; max-width: 120px; border-width: 5px; border-radius: 20px; }
  .pi-footer { padding: 20px 24px; flex-direction: column; align-items: flex-start; }
  .c-nav { top: 16px; right: 16px; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ── Light mode — match iot.parta.app exactly ───────────────────────────────── */
html[data-theme="light"] .pi-case__text     { opacity: 0.6; }
html[data-theme="light"] .pi-case__headline { opacity: 1; }
html[data-theme="light"] .pi-case__sector   { opacity: 0.4; }
html[data-theme="light"] .pi-case__module   { opacity: 0.4; }
html[data-theme="light"] .infog-label       { opacity: 0.4; }
html[data-theme="light"] .infog-node--dim   { opacity: 0.35; }
html[data-theme="light"] .stage-item        { opacity: 0.4; }
html[data-theme="light"] .stage-item--done  { opacity: 0.55; }
html[data-theme="light"] .stage-item--active{ opacity: 1; }
html[data-theme="light"] .stage-item--pending { opacity: 0.25; }
html[data-theme="light"] .sig-label         { opacity: 0.4; }
html[data-theme="light"] .pi-label          { opacity: 0.5; }
html[data-theme="light"] .pi-register__sub  { opacity: 0.45; }
html[data-theme="light"] .pi-shots__note    { opacity: 0.4; }
html[data-theme="light"] .pi-footer p,
html[data-theme="light"] .pi-footer a       { opacity: 0.4; }
html[data-theme="light"] .pi-pricing-note   { opacity: 0.35; }
html[data-theme="light"] .urgency-dot       { background: #96711e; }
html[data-theme="light"] .pi-hero__urgency  { color: rgba(150,113,30,0.8); }
html[data-theme="light"] .stage-approve-btn {
  background: rgba(150,113,30,0.08);
  border-color: rgba(150,113,30,0.3);
  color: #96711e;
}
html[data-theme="light"] .cta-ghost {
  border-color: rgba(26,26,26,0.25);
  color: #1a1a1a;
}