/* ==========================================================================
   ArchiDot Guides — standalone stylesheet (matches the app's design language)
   ========================================================================== */

:root {
  --c-primary: #b5654a;
  --c-primary-dark: #97503a;
  --c-primary-light: #f4e6df;
  --c-text: #2b2422;
  --c-text-2: #6f655f;
  --c-muted: #a59c95;
  --c-bg: #f7f4f0;
  --c-surface: #ffffff;
  --c-border: #e8e1d9;
  --c-border-light: #f1ece6;
  --c-success: #059669;
  --c-success-light: #d1fae5;
  --font-body: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-head: 'Fraunces', Georgia, 'Times New Roman', serif;
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(43,36,34,.06);
  --shadow-md: 0 4px 12px rgba(43,36,34,.08);
  --shadow-lg: 0 12px 32px rgba(43,36,34,.12);
  --topbar-h: 64px;
  --sidebar-w: 264px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-dark); }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.25; color: var(--c-text); }

/* --------------------------------------------------------------- topbar */
.gd-topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--topbar-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
}
.gd-topbar__inner {
  max-width: 1240px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; gap: 16px; padding: 0 20px;
}
.gd-topbar__menu {
  display: none; background: none; border: 1px solid var(--c-border);
  border-radius: var(--r-md); font-size: 18px; padding: 4px 10px; cursor: pointer; color: var(--c-text);
}
.gd-topbar__logo { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: var(--c-text); }
.gd-topbar__logo span { color: var(--c-primary); }
.gd-topbar__guides {
  font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--c-text-2); border-left: 1px solid var(--c-border); padding-left: 16px;
}
.gd-topbar__actions { margin-left: auto; display: flex; gap: 10px; }

/* ---------------------------------------------------------------- shell */
.gd-shell {
  display: flex; gap: 40px;
  max-width: 1240px; margin: 0 auto;
  padding: calc(var(--topbar-h) + 32px) 20px 0;
}
.gd-sidebar { width: var(--sidebar-w); flex-shrink: 0; }
.gd-nav { position: sticky; top: calc(var(--topbar-h) + 32px); display: flex; flex-direction: column; gap: 2px; padding-bottom: 40px; }
.gd-nav__home {
  display: block; font-weight: 600; color: var(--c-text);
  padding: 8px 12px; border-radius: var(--r-md); margin-bottom: 10px;
}
.gd-nav__home:hover { background: var(--c-surface); color: var(--c-text); }
.gd-nav__home.is-active { background: var(--c-primary-light); color: var(--c-primary-dark); }
.gd-nav__group {
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--c-muted); padding: 14px 12px 6px;
}
.gd-nav__link {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 12px; border-radius: var(--r-md);
  color: var(--c-text-2); font-size: 15px;
}
.gd-nav__link:hover { background: var(--c-surface); color: var(--c-text); }
.gd-nav__link.is-active { background: var(--c-primary-light); color: var(--c-primary-dark); font-weight: 600; }
.gd-nav__emoji { width: 20px; text-align: center; }
.gd-sidebar-scrim { display: none; }

.gd-main { flex: 1; min-width: 0; max-width: 780px; padding-bottom: 40px; }

/* ----------------------------------------------------------------- hero */
.gd-hero { margin-bottom: 40px; }
.gd-hero__eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--c-primary);
  background: var(--c-primary-light); border-radius: var(--r-full);
  padding: 4px 12px; margin-bottom: 14px;
}
.gd-hero h1 { font-size: clamp(30px, 4.5vw, 42px); margin-bottom: 14px; }
.gd-hero__lead { font-size: 18px; color: var(--c-text-2); max-width: 60ch; }
.gd-hero__meta { margin-top: 14px; font-size: 14px; color: var(--c-muted); display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- steps */
.gd-step { margin: 36px 0; }
.gd-step__head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.gd-step__num {
  flex-shrink: 0; width: 38px; height: 38px; border-radius: var(--r-full);
  background: var(--c-primary); color: #fff;
  font-family: var(--font-head); font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.gd-step__title { font-size: 24px; }
.gd-step__body { padding-left: 52px; display: flex; flex-direction: column; gap: 16px; }
.gd-step__body > p { color: var(--c-text-2); max-width: 65ch; }
.gd-step__body strong { color: var(--c-text); }

@media (max-width: 640px) { .gd-step__body { padding-left: 0; } }

/* --------------------------------------------------- "what you'll see" */
.gd-see {
  border: 1px solid var(--c-border); border-radius: var(--r-xl);
  background: var(--c-surface); overflow: hidden; box-shadow: var(--shadow-sm);
}
.gd-see__bar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: var(--c-bg); border-bottom: 1px solid var(--c-border);
}
.gd-see__dots { display: flex; gap: 5px; }
.gd-see__dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--c-border); }
.gd-see__label { font-size: 12px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--c-muted); }
.gd-see__body { padding: 22px; display: flex; flex-direction: column; gap: 18px; }

/* ------------------------------------------------------ mock: mode grid */
.gd-modes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.gd-mode {
  border: 2px solid var(--c-border); border-radius: var(--r-lg);
  background: var(--c-surface); padding: 14px 10px; text-align: center;
  display: flex; flex-direction: column; gap: 3px; align-items: center;
}
.gd-mode__icon { font-size: 22px; }
.gd-mode__title { font-weight: 600; font-size: 13.5px; }
.gd-mode__desc { font-size: 11.5px; color: var(--c-muted); line-height: 1.35; }
.gd-mode.is-selected { border-color: var(--c-primary); background: var(--c-primary-light); box-shadow: 0 0 0 3px var(--c-primary-light); }
@media (max-width: 720px) { .gd-modes { grid-template-columns: repeat(2, 1fr); } }

/* ---------------------------------------------------- mock: style cards */
.gd-styles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.gd-style {
  border: 2px solid var(--c-border); border-radius: var(--r-lg);
  background: var(--c-surface); padding: 16px 10px; text-align: center;
  font-weight: 500; font-size: 14px;
}
.gd-style.is-selected { border-color: var(--c-primary); background: var(--c-primary-light); box-shadow: 0 0 0 3px var(--c-primary-light); font-weight: 600; }
@media (max-width: 720px) { .gd-styles { grid-template-columns: repeat(2, 1fr); } }

/* ---------------------------------------------------- mock: upload zone */
.gd-upload {
  border: 2px dashed var(--c-border); border-radius: var(--r-xl);
  background: var(--c-bg); padding: 34px 20px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.gd-upload__icon { font-size: 30px; }
.gd-upload__title { font-weight: 600; font-size: 16px; }
.gd-upload__hint { font-size: 13px; color: var(--c-muted); margin-bottom: 6px; }

/* -------------------------------------------------- mock: 3D photo slots */
.gd-slots { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.gd-slot {
  position: relative; border: 2px dashed var(--c-border); border-radius: var(--r-lg);
  background: var(--c-bg); aspect-ratio: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
}
.gd-slot__plus { font-size: 26px; color: var(--c-muted); line-height: 1; }
.gd-slot__label { font-size: 13px; font-weight: 500; color: var(--c-text-2); }
.gd-slot__badge {
  position: absolute; top: 8px; right: 8px;
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
  background: var(--c-success-light); color: var(--c-success);
  padding: 2px 7px; border-radius: var(--r-full);
}
@media (max-width: 560px) { .gd-slots { grid-template-columns: repeat(2, 1fr); } }

/* --------------------------------------------------------- mock: fields */
.gd-field { display: flex; flex-direction: column; gap: 6px; }
.gd-field__label { font-size: 14px; font-weight: 600; }
.gd-field__input {
  border: 1px solid var(--c-border); border-radius: var(--r-md);
  background: var(--c-surface); padding: 10px 14px;
  font-size: 14.5px; color: var(--c-muted);
}
.gd-field__input--area { min-height: 74px; }
.gd-field__input--select { display: flex; align-items: center; justify-content: space-between; color: var(--c-text); }
.gd-field__caret { color: var(--c-muted); }
.gd-field__note { font-size: 12.5px; color: var(--c-muted); line-height: 1.5; }

/* ---------------------------------------------------------- mock: chips */
.gd-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.gd-chip {
  border: 1px solid var(--c-border); border-radius: var(--r-full);
  background: var(--c-surface); padding: 6px 14px; font-size: 13.5px; color: var(--c-text-2);
}
.gd-chip.is-selected { border-color: var(--c-primary); background: var(--c-primary-light); color: var(--c-primary-dark); font-weight: 600; }

/* -------------------------------------------------------------- buttons */
.gd-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--r-md);
  font-family: var(--font-body); font-size: 14.5px; font-weight: 500;
  border: 1px solid transparent; cursor: default; white-space: nowrap;
}
a.gd-btn { cursor: pointer; }
.gd-btn--primary { background: var(--c-primary); color: #fff; }
a.gd-btn--primary:hover { background: var(--c-primary-dark); color: #fff; }
.gd-btn--secondary { background: var(--c-surface); color: var(--c-text); border-color: var(--c-border); }
a.gd-btn--secondary:hover { background: var(--c-bg); color: var(--c-text); }
.gd-btn--ghost { background: transparent; color: var(--c-primary); }
a.gd-btn--ghost:hover { background: var(--c-primary-light); }
.gd-btn--sm { padding: 6px 14px; font-size: 13px; }
.gd-btn--lg { padding: 13px 26px; font-size: 16px; }
.gd-btn.is-disabled { opacity: .45; }
.gd-btnrow { display: flex; gap: 10px; flex-wrap: wrap; }
.gd-btnrow--center { justify-content: center; }

/* ------------------------------------------------------------------ tip */
.gd-tip {
  display: flex; gap: 12px; align-items: flex-start;
  background: #fdf8ef; border: 1px solid #f1e3c8; border-radius: var(--r-lg);
  padding: 14px 16px; font-size: 14.5px; color: var(--c-text-2);
}
.gd-tip__bulb { font-size: 18px; line-height: 1.4; }
.gd-tip strong { color: var(--c-text); }

/* -------------------------------------------------- before/after slider */
.ba-wrap { margin: 4px 0; }
.ba-wrap__cap { font-size: 13px; color: var(--c-muted); text-align: center; margin-top: 8px; }
.ba {
  position: relative; overflow: hidden; border-radius: var(--r-xl);
  aspect-ratio: 4 / 3; background: var(--c-border-light);
  box-shadow: var(--shadow-md); user-select: none;
}
.ba__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba__before { position: absolute; inset: 0; clip-path: inset(0 50% 0 0); }
.ba__tag {
  position: absolute; top: 12px; z-index: 3;
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 10px; border-radius: var(--r-full);
  background: rgba(43,36,34,.72); color: #fff; backdrop-filter: blur(4px);
}
.ba__tag--before { left: 12px; }
.ba__tag--after { right: 12px; background: var(--c-primary); }
.ba__line {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 3px;
  background: #fff; transform: translateX(-50%); z-index: 2;
  box-shadow: 0 0 8px rgba(0,0,0,.35);
}
.ba__grip {
  position: absolute; top: 50%; left: 50%; z-index: 3;
  width: 42px; height: 42px; border-radius: 50%;
  background: #fff; color: var(--c-text);
  display: flex; align-items: center; justify-content: center;
  transform: translate(-50%, -50%);
  box-shadow: var(--shadow-md); pointer-events: none;
}
.ba__range {
  position: absolute; inset: 0; z-index: 4;
  width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize;
  -webkit-appearance: none; appearance: none; background: transparent;
}
.ba__range::-webkit-slider-thumb { -webkit-appearance: none; width: 60px; height: 100%; cursor: ew-resize; }
.ba__range::-moz-range-thumb { width: 60px; height: 100%; border: 0; background: transparent; cursor: ew-resize; }
.ba.is-hinting .ba__grip { animation: ba-pulse 1.6s ease 2; }
@keyframes ba-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.18); }
}

/* -------------------------------------------------------------- gallery */
.gd-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gd-gallery__item { margin: 0; }
.gd-gallery__item img {
  width: 100%; border-radius: var(--r-lg); box-shadow: var(--shadow-md);
  cursor: zoom-in; transition: transform .2s ease;
}
.gd-gallery__item img:hover { transform: scale(1.02); }
.gd-gallery__item figcaption { font-size: 13px; color: var(--c-muted); text-align: center; margin-top: 7px; }
@media (max-width: 640px) { .gd-gallery { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------- lightbox */
.gd-lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(43,36,34,.88);
  display: flex; align-items: center; justify-content: center;
  padding: 4vh 4vw; cursor: zoom-out;
  opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
.gd-lightbox.is-open { opacity: 1; pointer-events: auto; }
.gd-lightbox img {
  max-width: 100%; max-height: 88vh; width: auto; height: auto;
  border-radius: var(--r-lg); box-shadow: var(--shadow-lg);
}
.gd-lightbox__cap {
  position: absolute; left: 0; right: 0; bottom: 3vh;
  text-align: center; color: #fff; font-size: 14px; opacity: .85;
}
.gd-lightbox__close {
  position: absolute; top: 16px; right: 20px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.14); color: #fff;
  border: 0; font-size: 22px; line-height: 1; cursor: pointer;
}
.gd-lightbox__close:hover { background: rgba(255,255,255,.28); }

/* -------------------------------------------------------- hub guide cards */
.gd-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 28px; }
.gd-card {
  display: flex; flex-direction: column;
  border: 1px solid var(--c-border); border-radius: var(--r-xl);
  background: var(--c-surface); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease;
  color: var(--c-text);
}
.gd-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--c-text); }
.gd-card__media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--c-border-light); }
.gd-card__media img { width: 100%; height: 100%; object-fit: cover; }
.gd-card__media .after { position: absolute; inset: 0; opacity: 0; transition: opacity .35s ease; }
.gd-card:hover .gd-card__media .after { opacity: 1; }
.gd-card__media--split { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.gd-card__media--split img { position: static; width: 100%; height: 100%; object-fit: cover; }
.gd-card__hint {
  position: absolute; right: 10px; bottom: 10px;
  font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  background: rgba(43,36,34,.72); color: #fff; padding: 3px 9px; border-radius: var(--r-full);
}
.gd-card__body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 6px; }
.gd-card__tag { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-primary); }
.gd-card__body h3 { font-size: 20px; }
.gd-card__body p { font-size: 14.5px; color: var(--c-text-2); }
.gd-card__more { margin-top: 6px; font-size: 14px; font-weight: 600; color: var(--c-primary); }
@media (max-width: 680px) { .gd-cards { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ FAQ */
.gd-faq { margin-top: 40px; display: flex; flex-direction: column; gap: 10px; }
.gd-faq h2 { font-size: 26px; margin-bottom: 8px; }
.gd-faq details {
  border: 1px solid var(--c-border); border-radius: var(--r-lg);
  background: var(--c-surface); padding: 14px 18px;
}
.gd-faq summary { font-weight: 600; cursor: pointer; }
.gd-faq details p { margin-top: 8px; color: var(--c-text-2); font-size: 15px; }

/* ------------------------------------------------------------------ CTA */
.gd-cta {
  margin-top: 56px; text-align: center;
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--r-xl); padding: 40px 28px;
  box-shadow: var(--shadow-sm);
}
.gd-cta h2 { font-size: 28px; margin-bottom: 10px; }
.gd-cta p { color: var(--c-text-2); margin-bottom: 20px; max-width: 48ch; margin-left: auto; margin-right: auto; }

/* --------------------------------------------------------------- footer */
.gd-footer { padding: 36px 0 44px; text-align: center; color: var(--c-muted); font-size: 13.5px; }
.gd-footer__links { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-bottom: 10px; }
.gd-footer__links a { color: var(--c-text-2); }
.gd-footer__links a:hover { color: var(--c-primary); }

/* --------------------------------------------------------------- mobile */
@media (max-width: 960px) {
  .gd-topbar__menu { display: block; }
  .gd-topbar__guides { display: none; }
  .gd-shell { padding-top: calc(var(--topbar-h) + 20px); }
  .gd-sidebar {
    position: fixed; top: var(--topbar-h); bottom: 0; left: 0; z-index: 90;
    width: var(--sidebar-w); background: var(--c-surface);
    border-right: 1px solid var(--c-border);
    padding: 16px; overflow-y: auto;
    transform: translateX(-100%); transition: transform .25s ease;
  }
  .gd-sidebar.is-open { transform: translateX(0); }
  .gd-nav { position: static; }
  .gd-sidebar-scrim {
    display: none; position: fixed; inset: var(--topbar-h) 0 0 0;
    background: rgba(43,36,34,.4); z-index: 80;
  }
  .gd-sidebar-scrim.is-open { display: block; }
}
@media (max-width: 520px) {
  .gd-topbar__actions .gd-btn--ghost { display: none; }
}