/* ==========================================================================
   Overlays & components: age gate, members wall, auth modal, cart drawer,
   search overlay, COA viewer, accordion, quantity stepper.
   Path: wp-content/themes/arch-research/assets/css/components.css — New file
   ========================================================================== */

/* ---------- Age & research-use gate ---------- */
.arc-gate { position: fixed; inset: 0; z-index: 99999; display: grid; place-items: center; padding: 20px; overflow-y: auto; }
html:not(.arc-gate-lock) .arc-gate:not(.arc-wall) { display: none; }
html.arc-gate-lock, html.arc-gate-lock body { overflow: hidden; }
.arc-gate__bg { position: fixed; inset: 0; background: rgba(233, 240, 248, .55) var(--arc-gate-bg) center / cover no-repeat; }
.arc-gate__bg::after { content: ""; position: absolute; inset: 0; background: rgba(10, 43, 84, .38); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.arc-wall .arc-gate__bg::after { background: rgba(255, 255, 255, .35); backdrop-filter: blur(2px); }
.arc-gate__card { position: relative; width: min(520px, 100%); margin: auto; padding: clamp(28px, 5vw, 44px); border-radius: var(--r-xl); text-align: center; background: #fff; box-shadow: var(--shadow-lg); overflow: hidden; animation: arcrise .7s var(--ease) both; }
.arc-gate__bar { position: absolute; left: 0; right: 0; top: 0; height: 6px; background: var(--grad); }
.arc-gate__logo { width: 96px; height: auto; margin: 4px auto 14px; display: block; }
.arc-gate__kicker { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 10px !important; padding: 6px 14px; border-radius: 99px; background: var(--teal-tint); color: var(--teal-text); font: 600 12.5px/1 var(--font-head); letter-spacing: .1em; text-transform: uppercase; }
.arc-gate__kicker .arc-i { width: 16px; height: 16px; }
.arc-gate__title { font-family: var(--font-head); font-size: clamp(22px, 3vw, 28px) !important; text-transform: uppercase; margin-bottom: 10px !important; }
.arc-gate__text { color: var(--muted); font-size: 15.5px; margin: 0 auto 22px !important; max-width: 44ch; }
.arc-gate__form { display: grid; gap: 4px; text-align: left; }
.arc-gate__form .arc-check { padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--r); margin-bottom: 8px; transition: border-color .2s, background .2s; }
.arc-gate__form .arc-check:hover { border-color: var(--teal); background: #FAFDFD; }
.arc-gate__form .arc-btn { margin-top: 10px; }
.arc-gate__exit { display: block; margin-top: 14px; text-align: center; color: var(--muted) !important; font-size: 14px; text-decoration: underline !important; text-underline-offset: 3px; }
.arc-gate__exit:hover { color: var(--bad) !important; }
.arc-gate.is-leaving { animation: arcfade .5s var(--ease) forwards; }
@keyframes arcrise { from { opacity: 0; transform: translateY(18px) scale(.98); } }
@keyframes arcfade { to { opacity: 0; visibility: hidden; } }
/* Members-only wall page */
.arc-wall-page { background: #F2F7FB; }
.arc-wall { position: relative; min-height: 100vh; padding: 32px 16px; }
.arc-wall__card { width: min(560px, 100%); }
.arc-wall__step.is-in { animation: arcrise .5s var(--ease); }
.arc-wall__status { padding: 10px 14px; border-radius: var(--r-sm); background: var(--warn-bg); color: var(--warn); font-size: 14px; }
.arc-wall__legal { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin: 22px 0 0 !important; font-size: 13px; }
.arc-wall__legal a { color: var(--muted) !important; }
.arc-wall__legal a:hover { color: var(--teal-text) !important; }
.arc-wall .arc-auth { text-align: left; }

/* ---------- Modal (auth) ---------- */
.arc-modal { position: fixed; inset: 0; z-index: 99990; display: grid; place-items: center; padding: 16px; overflow-y: auto; }
.arc-modal__backdrop, .arc-drawer__backdrop, .arc-search__backdrop, .arc-viewer__backdrop { position: fixed; inset: 0; background: rgba(10, 23, 43, .45); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); opacity: 0; transition: opacity .35s var(--ease); }
.arc-modal.is-open .arc-modal__backdrop, .arc-drawer.is-open .arc-drawer__backdrop, .arc-search.is-open .arc-search__backdrop, .arc-viewer.is-open .arc-viewer__backdrop { opacity: 1; }
.arc-modal__card { position: relative; width: min(480px, 100%); margin: auto; padding: clamp(24px, 4vw, 36px); border-radius: var(--r-xl); background: #fff; box-shadow: var(--shadow-lg); opacity: 0; transform: translateY(20px) scale(.98); transition: all .35s var(--ease); }
.arc-modal__card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 5px; border-radius: var(--r-xl) var(--r-xl) 0 0; background: var(--grad); }
.arc-modal.is-open .arc-modal__card { opacity: 1; transform: none; }
.arc-modal__x { position: absolute; right: 12px; top: 14px; }
.arc-modal__head { text-align: center; margin-bottom: 18px; }
.arc-modal__kicker { color: var(--teal-text); font: 600 12.5px/1 var(--font-head); letter-spacing: .1em; text-transform: uppercase; margin: 0 0 8px !important; }
.arc-modal__head h2 { font-size: 24px; text-transform: uppercase; margin-bottom: 6px !important; }
.arc-modal__head p { color: var(--muted); font-size: 15px; }
.arc-modal__skip { display: block; margin: 16px auto 0; background: none; border: 0; color: var(--muted); font-size: 14px; text-decoration: underline; text-underline-offset: 3px; }

/* Auth tabs + forms */
.arc-tabs { position: relative; display: grid; grid-template-columns: 1fr 1fr; padding: 4px; border-radius: var(--r-pill); background: var(--mist); margin-bottom: 20px; }
.arc-tabs__btn { position: relative; z-index: 1; height: 42px; border: 0; border-radius: var(--r-pill); background: transparent; font-weight: 600; font-size: 15px; color: var(--muted); transition: color .25s; }
.arc-tabs__btn.is-active { color: #fff; }
.arc-tabs__ink { position: absolute; top: 4px; bottom: 4px; left: 4px; width: calc(50% - 4px); border-radius: var(--r-pill); background: var(--grad); transition: transform .35s var(--ease); }
.arc-tabs[data-active="login"] .arc-tabs__ink { transform: translateX(100%); }
.arc-auth.is-lost .arc-tabs { display: none; }
.arc-auth__row { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 2px 0 12px; font-size: 14px; flex-wrap: wrap; }
.arc-auth__row .arc-check { margin: 0; }
.arc-auth__row a { color: var(--teal-text) !important; }
.arc-auth__lost-head { margin-bottom: 16px; }
.arc-auth__lost-head h3 { font-size: 20px; margin-bottom: 6px !important; }
.arc-auth__lost-head p { color: var(--muted); font-size: 15px; }
.arc-auth__back { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; background: none; border: 0; color: var(--muted); font-size: 14px; }
.arc-auth__back .arc-i { width: 16px; height: 16px; }
.arc-auth .arc-check a { color: var(--teal-text) !important; text-decoration: underline; }

/* ---------- Cart drawer ---------- */
.arc-drawer { position: fixed; inset: 0; z-index: 99980; }
.arc-drawer__panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(440px, 100%); display: flex; flex-direction: column; background: #fff; box-shadow: var(--shadow-lg); transform: translateX(100%); transition: transform .4s var(--ease); }
.arc-drawer.is-open .arc-drawer__panel { transform: none; }
.arc-drawer.is-busy .arc-drawer__inner { opacity: .55; pointer-events: none; }
.arc-drawer__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.arc-drawer__head h2 { font-size: 20px; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.arc-drawer__head .arc-cart-count { position: static; background: var(--grad); }
.arc-drawer__inner { flex: 1; display: flex; flex-direction: column; min-height: 0; transition: opacity .2s; }
.arc-drawer__items { flex: 1; overflow-y: auto; padding: 6px 20px; }
.arc-cline { display: grid; grid-template-columns: 76px 1fr auto; gap: 14px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--line); }
.arc-cline__img .arc-stage { border-radius: 12px; }
.arc-cline__info { display: grid; gap: 4px; min-width: 0; }
.arc-cline__name { font-family: var(--font-head); font-weight: 700; font-size: 15px; line-height: 1.3; }
.arc-cline__name:hover { color: var(--teal-text); }
.arc-cline__meta { color: var(--muted); font-size: 13px; }
.arc-cline__end { display: grid; justify-items: end; gap: 6px; }
.arc-cline__price { font-weight: 600; font-size: 15px; }
.arc-cline__remove { background: none; border: 0; padding: 0; color: var(--muted); font-size: 13px; text-decoration: underline; text-underline-offset: 2px; }
.arc-cline__remove:hover { color: var(--bad); }
.arc-drawer__addons { padding: 14px 20px; border-top: 1px solid var(--line); background: var(--mist); }
.arc-drawer__label { margin: 0 0 10px !important; font: 600 12.5px/1 var(--font-head); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.arc-addon { display: grid; grid-template-columns: 48px 1fr auto; gap: 12px; align-items: center; padding: 8px 0; }
.arc-addon strong { display: block; font-size: 14px; }
.arc-addon span { font-size: 13px; color: var(--muted); }
.arc-drawer__foot { padding: 18px 20px 22px; border-top: 1px solid var(--line); display: grid; gap: 10px; background: #fff; }
.arc-sum { display: flex; justify-content: space-between; align-items: center; font-size: 17px; }
.arc-sum strong { font-size: 20px; font-family: var(--font-head); }
.arc-sum--disc { font-size: 14px; color: var(--ok); }
.arc-drawer__note { display: flex; gap: 8px; align-items: flex-start; margin: 0 !important; color: var(--muted); font-size: 13px; }
.arc-drawer__note .arc-i { width: 18px; height: 18px; color: var(--teal); }
.arc-empty--drawer { margin: 24px 20px; }

/* Quantity stepper */
.arc-qty { display: inline-flex; align-items: center; height: 56px; border-radius: var(--r-pill); border: 1px solid var(--line-2); background: #fff; overflow: hidden; }
.arc-qty button { width: 46px; height: 100%; display: grid; place-items: center; background: none; border: 0; color: var(--navy); }
.arc-qty button:hover { background: var(--mist); }
.arc-qty .arc-i { width: 16px; height: 16px; }
.arc-qty input { width: 46px; height: 100%; border: 0; text-align: center; font-weight: 600; font-size: 17px; background: transparent; -moz-appearance: textfield; outline: 0; }
.arc-qty input::-webkit-outer-spin-button, .arc-qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.arc-qty--sm { height: 36px; width: max-content; }
.arc-qty--sm button { width: 32px; }
.arc-qty--sm input { width: 34px; font-size: 14px; }

/* ---------- Search overlay ---------- */
.arc-search { position: fixed; inset: 0; z-index: 99985; }
.arc-search__sheet { position: relative; width: min(760px, calc(100% - 24px)); margin: clamp(16px, 8vh, 90px) auto 0; border-radius: var(--r-lg); background: #fff; box-shadow: var(--shadow-lg); overflow: hidden; opacity: 0; transform: translateY(-12px); transition: all .35s var(--ease); }
.arc-search.is-open .arc-search__sheet { opacity: 1; transform: none; }
.arc-search__bar { display: flex; align-items: center; gap: 12px; padding: 10px 12px 10px 20px; border-bottom: 1px solid var(--line); }
.arc-search__bar > .arc-i { color: var(--teal); width: 22px; height: 22px; }
.arc-search__bar input { flex: 1; min-width: 0; height: 52px; border: 0; outline: 0; font-size: 18px; background: transparent; box-shadow: none !important; }
.arc-search__spin { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--teal); border-right-color: transparent; opacity: 0; }
.arc-search.is-loading .arc-search__spin { opacity: 1; animation: arcspin .7s linear infinite; }
.arc-search__body { max-height: min(62vh, 560px); overflow-y: auto; padding: 18px 20px 22px; }
.arc-search__label { margin: 0 0 10px !important; font: 600 12px/1 var(--font-head); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.arc-search .arc-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.arc-search__tip { display: flex; gap: 8px; align-items: center; margin: 16px 0 0 !important; color: var(--muted); font-size: 14px; }
.arc-search__tip .arc-i { width: 18px; height: 18px; color: var(--teal); }
.arc-sres__group + .arc-sres__group { margin-top: 18px; }
.arc-sres__list { display: grid; gap: 4px; }
.arc-sres__item { display: grid; grid-template-columns: 52px 1fr auto; gap: 14px; align-items: center; padding: 8px 10px; border-radius: var(--r); transition: background .15s; }
.arc-sres__item:hover, .arc-sres__item.is-active { background: var(--mist); }
.arc-sres__img { width: 52px; height: 52px; border-radius: 10px; display: grid; place-items: center; background: var(--arc-product-bg) center / cover; overflow: hidden; color: var(--teal); }
.arc-sres__img img { width: 100%; height: 100%; object-fit: contain; }
.arc-sres__name { display: block; font-weight: 700; font-family: var(--font-head); font-size: 15px; }
.arc-sres__name mark { background: var(--teal-tint); color: inherit; border-radius: 3px; }
.arc-sres__meta { display: block; color: var(--muted); font-size: 13px; }
.arc-sres__price { font-weight: 600; font-size: 15px; }
.arc-sres__none { color: var(--muted); text-align: center; padding: 20px 0; margin: 0; }
.arc-sres__all { margin-top: 14px; }

/* ---------- COA viewer ---------- */
.arc-viewer { position: fixed; inset: 0; z-index: 99995; display: grid; place-items: center; padding: 12px; }
.arc-viewer__card { position: relative; width: min(1100px, 100%); height: min(92vh, 1000px); display: flex; flex-direction: column; border-radius: var(--r-lg); background: #fff; box-shadow: var(--shadow-lg); overflow: hidden; opacity: 0; transform: translateY(16px) scale(.98); transition: all .35s var(--ease); }
.arc-viewer.is-open .arc-viewer__card { opacity: 1; transform: none; }
.arc-viewer__head { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 16px 18px 16px 22px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.arc-viewer__kicker { display: flex; align-items: center; gap: 6px; margin: 0 0 4px !important; color: var(--teal-text); font: 600 12px/1.2 var(--font-head); letter-spacing: .08em; text-transform: uppercase; }
.arc-viewer__kicker .arc-i { width: 16px; height: 16px; }
.arc-viewer__head h2 { font-size: 22px; }
.arc-viewer__meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 0 !important; color: var(--muted); font-size: 14px; }
.arc-viewer__meta strong { color: var(--ink); }
.arc-viewer__actions { display: flex; gap: 8px; align-items: center; }
.arc-viewer__doc { flex: 1; min-height: 0; background: #E9EEF3; overflow: auto; }
.arc-viewer__doc iframe { width: 100%; height: 100%; border: 0; display: block; background: #fff; }
.arc-viewer__doc img { display: block; max-width: 100%; margin: 0 auto; }
.arc-viewer__nodoc { padding: 60px 20px; text-align: center; color: var(--muted); }
@media (max-width: 640px) { .arc-viewer__actions .arc-btn span { display: none; } .arc-viewer__actions .arc-btn { padding: 0 12px; } }

/* ---------- Accordion ---------- */
.arc-accs { display: grid; gap: 12px; }
.arc-acc { border-radius: var(--r-sm); background: #fff; box-shadow: 0 0 4px rgba(0, 0, 0, .18); transition: all .3s var(--ease); overflow: hidden; }
.arc-acc.is-open { background: var(--grad); box-shadow: none; border-radius: var(--r-lg); }
.arc-acc__h { margin: 0 !important; font-size: inherit !important; }
.arc-acc__btn { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 22px; background: none; border: 0; text-align: left; font: 600 clamp(16px, 1.4vw, 20px)/1.35 var(--font-head); color: var(--ink); }
.arc-acc.is-open .arc-acc__btn { color: #fff; }
.arc-acc__icon { flex: none; width: 33px; height: 33px; border-radius: 50%; display: grid; place-items: center; background: var(--grad); color: #fff; transition: transform .3s var(--ease); }
.arc-acc__icon .arc-i { width: 18px; height: 18px; stroke-width: 2.4; }
.arc-acc.is-open .arc-acc__icon { background: #fff; color: var(--navy); transform: rotate(180deg); }
.arc-acc__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s var(--ease); }
.arc-acc.is-open .arc-acc__panel { grid-template-rows: 1fr; }
.arc-acc__inner { overflow: hidden; }
.arc-acc__inner p { margin: 0 22px 22px !important; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .7); color: #fff; }