/*
Theme Name: Artista
Theme URI: https://starsjapan.com/
Author: STARS™
Author URI: https://starsjapan.com/
Description: 写真を最大限に引き立てる、アートなギャラリー / ポートフォリオ向けWordPressテーマ。写真家・イラストレーター・クリエイターのための、フルスクリーンヒーローとグリッドギャラリーを備えたミニマルデザイン。ARTISAN（TCD112）系の世界観を独自実装したオリジナルテーマです。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: artista
Tags: portfolio, photography, gallery, minimal, custom-menu, featured-images, translation-ready, custom-logo, threaded-comments
*/

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root{
  --ink:            #171512;   /* near-black text */
  --ink-soft:       #6f6a63;   /* muted grey */
  --ink-faint:      #a8a29a;   /* captions / meta */
  --paper:          #ffffff;   /* base background */
  --paper-alt:      #f6f4f0;   /* warm off-white sections */
  --line:           #e6e2db;   /* hairline */
  --line-strong:    #cec8bf;
  --accent:         #171512;   /* monochrome by default; overridable via customizer */
  --overlay:        rgba(20,18,15,.94);

  --serif:   "Cormorant Garamond", "Shippori Mincho B1", "Noto Serif JP", serif;
  --sans:    "Noto Sans JP", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;

  --wrap:    1320px;
  --wrap-narrow: 760px;
  --gutter:  clamp(20px, 5vw, 64px);

  --ease:    cubic-bezier(.22,.61,.36,1);
  --dur:     .6s;
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  font-size:15px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* hidden scrollbar — signature of the ARTISAN aesthetic */
body::-webkit-scrollbar{ width:0; height:0; }
body{ scrollbar-width:none; }

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; transition:color .3s var(--ease), opacity .3s var(--ease); }
a:hover{ opacity:.6; }
h1,h2,h3,h4{ font-weight:400; margin:0; line-height:1.35; }
p{ margin:0 0 1.6em; }
ul,ol{ margin:0 0 1.6em; padding-left:1.4em; }
button{ font-family:inherit; cursor:pointer; }
:focus-visible{ outline:2px solid var(--ink); outline-offset:3px; }

.screen-reader-text{
  position:absolute; width:1px; height:1px; margin:-1px; padding:0;
  overflow:hidden; clip:rect(0,0,0,0); border:0;
}
.wrap{ max-width:var(--wrap); margin-inline:auto; padding-inline:var(--gutter); }
.wrap-narrow{ max-width:var(--wrap-narrow); margin-inline:auto; padding-inline:var(--gutter); }

/* small utility label — letter-spaced Latin caps */
.eyebrow{
  font-family:var(--sans);
  font-size:10.5px;
  letter-spacing:.42em;
  text-transform:uppercase;
  color:var(--ink-faint);
  display:inline-block;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:22px var(--gutter);
  transition:background .5s var(--ease), padding .5s var(--ease), box-shadow .5s var(--ease);
  mix-blend-mode:normal;
}
.site-header.is-solid{
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px);
  box-shadow:0 1px 0 var(--line);
  padding-block:16px;
}
/* transparent-over-hero mode */
.site-header.is-over-hero:not(.is-solid){ color:#fff; }
.site-header.is-over-hero:not(.is-solid) .brand-sub,
.site-header.is-over-hero:not(.is-solid) .menu-toggle span{ color:#fff; }
.site-header.is-over-hero:not(.is-solid) .menu-toggle .bar{ background:#fff; }

.brand{ line-height:1; }
.brand a{ display:inline-flex; flex-direction:column; gap:5px; }
.brand-name{
  font-family:var(--serif);
  font-size:clamp(22px,2.6vw,30px);
  letter-spacing:.24em;
  font-weight:500;
  padding-left:.24em;
}
.brand-sub{
  font-size:9.5px; letter-spacing:.4em; text-transform:uppercase;
  color:var(--ink-faint); padding-left:.4em;
}
.custom-logo{ max-height:44px; width:auto; }

.menu-toggle{
  display:inline-flex; align-items:center; gap:14px;
  background:none; border:0; padding:6px 2px; color:inherit;
}
.menu-toggle .label{ font-size:10.5px; letter-spacing:.34em; text-transform:uppercase; }
.menu-toggle .bars{ display:inline-flex; flex-direction:column; gap:5px; width:26px; }
.menu-toggle .bar{ height:1.5px; width:100%; background:var(--ink); transition:transform .4s var(--ease), opacity .3s var(--ease); }
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){ opacity:0; }
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   DRAWER / OVERLAY MENU  (signature element)
   ============================================================ */
.drawer{
  position:fixed; inset:0; z-index:99;
  background:var(--overlay); color:#fff;
  display:flex; flex-direction:column; justify-content:center; align-items:center;
  opacity:0; visibility:hidden;
  transition:opacity .6s var(--ease), visibility .6s var(--ease);
}
.drawer.is-open{ opacity:1; visibility:visible; }
.drawer nav ul{ list-style:none; margin:0; padding:0; text-align:center; }
.drawer nav li{
  opacity:0; transform:translateY(18px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
.drawer.is-open nav li{ opacity:1; transform:none; }
.drawer.is-open nav li:nth-child(1){ transition-delay:.10s; }
.drawer.is-open nav li:nth-child(2){ transition-delay:.16s; }
.drawer.is-open nav li:nth-child(3){ transition-delay:.22s; }
.drawer.is-open nav li:nth-child(4){ transition-delay:.28s; }
.drawer.is-open nav li:nth-child(5){ transition-delay:.34s; }
.drawer.is-open nav li:nth-child(6){ transition-delay:.40s; }
.drawer nav a{
  font-family:var(--serif);
  font-size:clamp(26px,4.4vw,44px);
  letter-spacing:.12em; line-height:2.1;
  display:inline-block;
}
.drawer nav a:hover{ opacity:1; letter-spacing:.22em; }
.drawer .drawer-meta{
  position:absolute; bottom:40px; left:0; right:0; text-align:center;
  font-size:10.5px; letter-spacing:.34em; text-transform:uppercase; color:rgba(255,255,255,.55);
}
.drawer .drawer-social a{ margin:0 12px; }

/* ============================================================
   HERO — fullscreen crossfade slideshow
   ============================================================ */
.hero{
  position:relative; height:100vh; min-height:560px; width:100%;
  overflow:hidden; background:#111;
}
.hero-slides{ position:absolute; inset:0; }
.hero-slide{
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  opacity:0; transform:scale(1.06);
  transition:opacity 1.6s var(--ease), transform 7s linear;
}
.hero-slide.is-active{ opacity:1; transform:scale(1); }
.hero::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg,rgba(0,0,0,.28),rgba(0,0,0,.05) 30%,rgba(0,0,0,.35)); }
.hero-caption{
  position:absolute; z-index:2; left:0; right:0; bottom:12vh;
  text-align:center; color:#fff; padding-inline:var(--gutter);
}
.hero-caption .eyebrow{ color:rgba(255,255,255,.75); margin-bottom:20px; }
.hero-caption h1{
  font-family:var(--serif);
  font-size:clamp(34px,6vw,74px);
  letter-spacing:.14em; font-weight:400;
}
.hero-caption p{ margin-top:18px; font-size:13px; letter-spacing:.28em; text-transform:uppercase; color:rgba(255,255,255,.8); }
.hero-scroll{
  position:absolute; z-index:2; left:50%; bottom:34px; transform:translateX(-50%);
  color:#fff; font-size:10px; letter-spacing:.34em; text-transform:uppercase;
  display:flex; flex-direction:column; align-items:center; gap:10px;
}
.hero-scroll .line{ width:1px; height:44px; background:rgba(255,255,255,.7); animation:scrollpulse 2.4s var(--ease) infinite; transform-origin:top; }
@keyframes scrollpulse{ 0%,100%{ transform:scaleY(.25); opacity:.4; } 50%{ transform:scaleY(1); opacity:1; } }

/* ============================================================
   SECTIONS
   ============================================================ */
.section{ padding-block:clamp(70px,11vw,150px); }
.section--alt{ background:var(--paper-alt); }
.section-head{ text-align:center; margin-bottom:clamp(40px,6vw,80px); }
.section-head .eyebrow{ margin-bottom:18px; }
.section-head h2{
  font-family:var(--serif); font-size:clamp(26px,4vw,42px);
  letter-spacing:.14em; font-weight:400;
}
.section-head .lead{ margin-top:22px; color:var(--ink-soft); font-size:14px; line-height:2.1; }

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(30px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

/* ============================================================
   GALLERY GRID
   ============================================================ */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:2px;
}
.gallery-grid.cols-2{ grid-template-columns:repeat(2,1fr); }
.gallery-grid.cols-4{ grid-template-columns:repeat(4,1fr); }
.gallery-item{ position:relative; display:block; overflow:hidden; background:var(--paper-alt); aspect-ratio:4/5; }
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition:transform 1.4s var(--ease), filter 1s var(--ease);
  filter:grayscale(6%);
}
.gallery-item:hover{ opacity:1; }
.gallery-item:hover img{ transform:scale(1.06); filter:grayscale(0%); }
.gallery-item .cap{
  position:absolute; inset:auto 0 0 0; z-index:2;
  padding:22px 20px;
  background:linear-gradient(0deg,rgba(0,0,0,.55),transparent);
  color:#fff; opacity:0; transform:translateY(10px);
  transition:opacity .5s var(--ease), transform .5s var(--ease);
}
.gallery-item:hover .cap{ opacity:1; transform:none; }
.gallery-item .cap .t{ font-family:var(--serif); font-size:19px; letter-spacing:.1em; }
.gallery-item .cap .c{ font-size:10px; letter-spacing:.3em; text-transform:uppercase; color:rgba(255,255,255,.75); margin-top:4px; }

/* masonry-ish variety: let some items span */
.gallery-grid.varied .gallery-item:nth-child(6n+1){ aspect-ratio:4/5; }
.gallery-grid.varied .gallery-item:nth-child(6n+4){ aspect-ratio:4/3; }

/* ============================================================
   ABOUT / SPLIT
   ============================================================ */
.split{ display:grid; grid-template-columns:1.1fr 1fr; gap:clamp(30px,6vw,90px); align-items:center; }
.split--reverse{ direction:rtl; }
.split--reverse > *{ direction:ltr; }
.split .media img{ width:100%; aspect-ratio:4/5; object-fit:cover; }
.split .body .eyebrow{ margin-bottom:20px; }
.split .body h2{ font-family:var(--serif); font-size:clamp(24px,3.4vw,38px); letter-spacing:.1em; margin-bottom:26px; }
.split .body p{ color:var(--ink-soft); line-height:2.1; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:14px;
  font-size:11px; letter-spacing:.32em; text-transform:uppercase;
  padding:16px 34px; border:1px solid var(--ink); color:var(--ink);
  background:transparent; transition:background .4s var(--ease), color .4s var(--ease); border-radius:0;
}
.btn:hover{ background:var(--ink); color:#fff; opacity:1; }
.btn--light{ border-color:#fff; color:#fff; }
.btn--light:hover{ background:#fff; color:var(--ink); }
.btn-center{ text-align:center; margin-top:clamp(40px,6vw,70px); }

/* ============================================================
   POSTS / BLOG
   ============================================================ */
.post-list{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(30px,4vw,56px); }
.post-card .thumb{ overflow:hidden; aspect-ratio:3/2; background:var(--paper-alt); margin-bottom:22px; }
.post-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform 1.2s var(--ease); }
.post-card:hover .thumb img{ transform:scale(1.05); }
.post-card .meta{ font-size:10px; letter-spacing:.28em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:12px; }
.post-card h3{ font-family:var(--serif); font-size:22px; letter-spacing:.06em; line-height:1.55; margin-bottom:12px; }
.post-card .excerpt{ color:var(--ink-soft); font-size:13.5px; line-height:2; }

/* single */
.entry-hero{ height:60vh; min-height:420px; background-size:cover; background-position:center; position:relative; }
.entry-hero::after{ content:""; position:absolute; inset:0; background:rgba(0,0,0,.28); }
.entry-hero .inner{ position:absolute; z-index:2; inset:auto 0 0 0; padding:0 var(--gutter) clamp(40px,7vw,80px); color:#fff; text-align:center; }
.entry-hero h1{ font-family:var(--serif); font-size:clamp(28px,5vw,54px); letter-spacing:.1em; }
.entry-hero .meta{ font-size:10.5px; letter-spacing:.3em; text-transform:uppercase; color:rgba(255,255,255,.8); margin-top:18px; }

.entry{ padding-block:clamp(56px,8vw,100px); }
.entry-content{ font-size:15.5px; line-height:2.1; }
.entry-content h2{ font-family:var(--serif); font-size:28px; letter-spacing:.06em; margin:2em 0 .8em; }
.entry-content h3{ font-family:var(--serif); font-size:22px; letter-spacing:.04em; margin:1.8em 0 .7em; }
.entry-content img{ margin:2em auto; }
.entry-content blockquote{ margin:2em 0; padding-left:26px; border-left:2px solid var(--ink); color:var(--ink-soft); font-family:var(--serif); font-size:20px; line-height:1.9; }
.entry-content a{ text-decoration:underline; text-underline-offset:4px; }
.entry-content a:hover{ opacity:.55; }

.post-nav{ display:flex; justify-content:space-between; gap:20px; border-top:1px solid var(--line); padding-top:34px; margin-top:60px; }
.post-nav a{ font-size:11px; letter-spacing:.24em; text-transform:uppercase; }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination{ margin-top:clamp(50px,7vw,90px); text-align:center; }
.pagination .page-numbers{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:44px; height:44px; padding:0 6px; margin:0 3px;
  font-size:12px; letter-spacing:.1em; border:1px solid var(--line);
}
.pagination .page-numbers.current{ background:var(--ink); color:#fff; border-color:var(--ink); }
.pagination a.page-numbers:hover{ border-color:var(--ink); opacity:1; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ background:var(--ink); color:#efece7; padding-block:clamp(60px,8vw,96px); }
.site-footer a{ color:#efece7; }
.footer-top{ display:flex; flex-direction:column; align-items:center; gap:26px; text-align:center; }
.footer-brand{ font-family:var(--serif); font-size:clamp(24px,3.4vw,36px); letter-spacing:.24em; padding-left:.24em; }
.footer-nav ul{ list-style:none; display:flex; flex-wrap:wrap; justify-content:center; gap:28px; margin:0; padding:0; }
.footer-nav a{ font-size:11px; letter-spacing:.28em; text-transform:uppercase; }
.footer-social{ display:flex; gap:22px; }
.footer-social a{ font-size:11px; letter-spacing:.24em; text-transform:uppercase; }
.footer-bottom{ margin-top:44px; padding-top:26px; border-top:1px solid rgba(255,255,255,.12); text-align:center; font-size:10.5px; letter-spacing:.24em; text-transform:uppercase; color:rgba(255,255,255,.5); }

/* to-top */
.to-top{
  position:fixed; right:26px; bottom:26px; z-index:80;
  width:46px; height:46px; border:1px solid var(--line-strong);
  background:rgba(255,255,255,.9); backdrop-filter:blur(6px);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transition:opacity .4s var(--ease), visibility .4s var(--ease);
}
.to-top.is-show{ opacity:1; visibility:visible; }
.to-top svg{ width:14px; height:14px; }

/* ============================================================
   WIDGETS / SIDEBAR (blog)
   ============================================================ */
.layout-2col{ display:grid; grid-template-columns:1fr 300px; gap:clamp(36px,5vw,72px); }
.widget{ margin-bottom:46px; }
.widget-title{ font-family:var(--serif); font-size:18px; letter-spacing:.1em; margin-bottom:20px; padding-bottom:12px; border-bottom:1px solid var(--line); }
.widget ul{ list-style:none; padding:0; margin:0; }
.widget li{ padding:9px 0; border-bottom:1px solid var(--line); font-size:13px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .gallery-grid, .gallery-grid.cols-4{ grid-template-columns:repeat(2,1fr); }
  .post-list{ grid-template-columns:repeat(2,1fr); }
  .layout-2col{ grid-template-columns:1fr; }
}
@media (max-width:680px){
  .menu-toggle .label{ display:none; }
  .split, .split--reverse{ grid-template-columns:1fr; direction:ltr; }
  .split .media{ order:-1; }
  .gallery-grid, .gallery-grid.cols-2, .gallery-grid.cols-4{ grid-template-columns:repeat(2,1fr); gap:1px; }
  .post-list{ grid-template-columns:1fr; }
  .gallery-item .cap{ opacity:1; transform:none; }
}

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition-duration:.01ms !important; }
  .reveal{ opacity:1; transform:none; }
}

/* WP core alignments */
.alignleft{ float:left; margin:0 2em 1em 0; }
.alignright{ float:right; margin:0 0 1em 2em; }
.aligncenter{ margin-inline:auto; }
.alignwide{ width:min(1100px,100%); margin-inline:auto; }
.alignfull{ width:100vw; margin-left:calc(50% - 50vw); }
.wp-caption-text,.gallery-caption{ font-size:11px; letter-spacing:.1em; color:var(--ink-faint); text-align:center; margin-top:8px; }
.sticky,.bypostauthor{ }