/* ===================================================================
   KOS HOTEL RESTAURANT — Japandi-style site
   Design tokens + shared components
   =================================================================== */

:root{
  --ink:#191b1f;
  --paper:#ffffff;
  --paper-raise:#f6f2ea;
  --paper-deep:#ece4d6;
  --ember:#b8823f;
  --ember-soft:#dcb679;
  --lake:#3d6470;
  --lake-soft:#7fa0a8;
  --pine:#47563f;
  --sand-line:#d3c6ae;
  --text-on-paper:#2b2723;
  --text-muted:#6b6459;
  --font-display:'Shippori Mincho','Noto Serif JP',serif;
  --font-body:'Noto Serif JP','Shippori Mincho',serif;
  --font-en:'Cormorant Garamond','EB Garamond','Noto Serif JP',serif;
  --maxw:1180px;
}

.kos *{box-sizing:border-box;}
.kos article{padding:0;}
html{overflow-x:hidden;}
.kos{font-family:var(--font-body);color:var(--text-on-paper);background:var(--paper);font-size:16px;line-height:1.8;}
.kos a{color:inherit;}
.kos img{max-width:100%;display:block;}
.kos .container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
@media (max-width:640px){ .kos .container{padding:0 16px;} }

.kos .eyebrow{font-family:var(--font-en);font-size:.95em;letter-spacing:.24em;text-transform:uppercase;color:var(--ember);}
.kos .section-head{padding:0 0 32px;}
.kos .section-head .eyebrow{margin-bottom:14px;display:block;}
.kos .section-head h2{font-size:clamp(1.5em,2.8vw,2.1em);font-family:var(--font-display);font-weight:500;margin:0;}

/* photo placeholder badge — dev-time marker for unfilled photo slots */
.kos .ph-image::after,.kos .feature-thumb::after{
  content:"写真未設定";position:absolute;top:12px;right:12px;z-index:3;
  background:rgba(25,27,31,.72);color:#f2ede0;font-family:var(--font-en);
  font-size:.6em;letter-spacing:.06em;text-transform:uppercase;
  padding:6px 10px;border-radius:20px;border:1px solid rgba(242,237,224,.35);
}
.kos .has-photo::after{display:none;}
.kos .grain{position:absolute;inset:0;opacity:.04;mix-blend-mode:overlay;pointer-events:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");}

/* site nav */
.kos .site-nav{position:sticky;top:0;z-index:100;background:var(--ink);color:#f2ede0;}
.kos .site-nav .container{max-width:none;display:flex;align-items:center;justify-content:space-between;padding:18px 32px;gap:20px;flex-wrap:nowrap;}
.kos .site-nav .brand{flex:0 0 auto;align-self:flex-start;font-family:var(--font-en);font-size:1.2em;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:#f2ede0;}
.kos .site-nav .brand span{color:var(--ember-soft);}
.kos .site-nav nav{flex:1 1 auto;min-width:0;}
.kos .site-nav nav ul.nav-menu{display:flex;justify-content:flex-end;gap:22px;flex-wrap:wrap;list-style:none;margin:0;padding:0;}
.kos .site-nav nav ul.nav-menu li{list-style:none;}
.kos .site-nav nav a{font-family:var(--font-en);font-size:.9em;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;color:#d9d2c1;padding-bottom:3px;border-bottom:1px solid transparent;}
.kos .site-nav nav a.active,.kos .site-nav nav .current-menu-item>a,.kos .site-nav nav .current_page_item>a{color:#fff;border-color:var(--ember);}
.kos .site-nav nav a:hover{border-color:var(--ember-soft);}
.kos .site-nav .reserve{position:static;display:inline-block;font-family:var(--font-en);font-size:.78em;letter-spacing:.1em;text-transform:uppercase;background:var(--ember);color:var(--ink);padding:10px 20px;border-radius:2px;text-decoration:none;white-space:nowrap;}
.kos .site-nav .lang{flex:0 0 auto;}
.kos .rd-nav-toggle{position:absolute;opacity:0;pointer-events:none;}
.kos .rd-nav-btn{display:none;flex:0 0 auto;width:26px;height:20px;position:relative;cursor:pointer;}
.kos .rd-nav-btn span{position:absolute;left:0;right:0;height:2px;background:#f2ede0;border-radius:1px;transition:transform .25s ease,opacity .25s ease;}
.kos .rd-nav-btn span:nth-child(1){top:0;}
.kos .rd-nav-btn span:nth-child(2){top:9px;}
.kos .rd-nav-btn span:nth-child(3){top:18px;}
.kos .rd-nav-toggle:checked ~ .rd-nav-btn span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.kos .rd-nav-toggle:checked ~ .rd-nav-btn span:nth-child(2){opacity:0;}
.kos .rd-nav-toggle:checked ~ .rd-nav-btn span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}
@media (max-width:1100px){
  .kos .site-nav .container{position:relative;flex-wrap:wrap;}
  .kos .rd-nav-btn{display:block;}
  .kos .site-nav nav{flex:0 0 100%;order:3;position:absolute;top:100%;left:0;right:0;background:var(--ink);max-height:0;overflow:hidden;transition:max-height .3s ease;border-top:1px solid rgba(255,255,255,.08);}
  .kos .rd-nav-toggle:checked ~ nav{max-height:600px;}
  .kos .site-nav nav ul.nav-menu{flex-direction:column;gap:0;padding:10px 32px 20px;}
  .kos .site-nav nav ul.nav-menu li{width:100%;}
  .kos .site-nav nav a{display:block;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);}
}

/* buttons */
.kos .btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-en);font-size:.82em;letter-spacing:.1em;text-transform:uppercase;padding:15px 32px;border-radius:2px;text-decoration:none;border:1px solid currentColor;transition:opacity .2s ease;}
.kos .btn:hover{opacity:.78;}
.kos .cta-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:36px;}
.kos .btn-solid{background:var(--ember);border-color:var(--ember);color:#fff;}
.kos .btn-ghost,.kos .btn-ghost-dark{color:#f2ede0;}
.kos .data-section .btn-ghost{color:var(--ink);}

/* hero */
.kos .hero{position:relative;background:var(--ink);color:#f2ede0;padding:130px 0 48px;overflow:hidden;}
.kos .hero .container{position:relative;z-index:2;}
.kos .hero.video-hero{background:var(--ink);}
.kos .video-hero .video-bg{position:absolute;inset:0;overflow:hidden;z-index:0;}
.kos .video-hero .video-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,22,26,.35),rgba(20,22,26,.7));}
.kos .video-hero .video-bg-iframe{position:absolute;top:50%;left:50%;width:100vw;height:56.25vw;min-height:100%;min-width:177.78vh;transform:translate(-50%,-50%);pointer-events:none;border:0;}
.kos .video-hero .grain{z-index:1;}
.kos .hero .site-tag{font-family:var(--font-en);font-size:.98em;letter-spacing:.28em;text-transform:uppercase;color:var(--lake-soft);margin-bottom:26px;}
.kos .hero h1{font-family:var(--font-display);font-weight:500;font-size:clamp(2.1em,5vw,3.8em);line-height:1.5;color:#f6f1e4;}
.kos .hero h1 .en{display:block;font-family:var(--font-en);font-size:.34em;letter-spacing:.16em;text-transform:uppercase;color:var(--ember-soft);margin-top:18px;}
.kos .hero p.lead{max-width:600px;margin:32px 0 0;font-size:1.05em;color:#d9d2c1;line-height:2;}

/* intro */
.kos .intro{padding:96px 0;}
.kos .intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start;}
@media (max-width:840px){ .kos .intro-grid{grid-template-columns:1fr;gap:30px;} }
.kos .intro .rule{width:60px;height:2px;background:var(--ember);margin-bottom:24px;}
.kos .intro h2{font-family:var(--font-display);font-weight:500;font-size:clamp(1.5em,3vw,2.1em);line-height:1.6;}
.kos .intro .lead-text{font-size:1.08em;color:var(--text-muted);line-height:2;}

/* feature rows */
.kos .features{padding:64px 0;}
.kos .feature-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:80px;}
.kos .feature-row:last-child{margin-bottom:0;}
.kos .feature-row.rev .feature-thumb{order:2;}
@media (max-width:700px){ .kos .feature-row.rev .feature-thumb{order:initial;} .kos .feature-row{grid-template-columns:1fr;gap:20px;margin-bottom:50px;} }
.kos .feature-thumb{position:relative;aspect-ratio:4/3;border-radius:2px;overflow:hidden;background:linear-gradient(155deg,#3d6470,#26414a 55%,#191b1f);}
.kos .feature-thumb img{width:100%;height:100%;object-fit:cover;}
.kos .feature-num{font-family:var(--font-en);font-size:.9em;letter-spacing:.12em;color:var(--ember);}
.kos .feature-row h3{font-family:var(--font-display);font-weight:500;font-size:1.5em;margin-top:8px;}
.kos .feature-row h3 .sub{display:block;font-family:var(--font-en);font-size:.5em;letter-spacing:.12em;text-transform:uppercase;color:var(--lake);margin-bottom:8px;}
.kos .feature-row p{color:var(--text-muted);font-size:1.02em;margin-top:14px;line-height:1.9;}

/* generic photo box */
.kos .ph-image{aspect-ratio:4/3;border-radius:2px;position:relative;overflow:hidden;display:flex;align-items:flex-end;color:#f2ede0;background:linear-gradient(155deg,#3d6470,#26414a 55%,#191b1f);}
.kos .ph-image img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.kos .ph-image .cap{position:relative;z-index:2;padding:16px 20px;font-family:var(--font-en);font-size:.68em;letter-spacing:.1em;text-transform:uppercase;color:#e9e2d0cc;}

/* Smart Slider embedded inside a ph-image / feature-thumb box — force it to
   fill the box exactly instead of breaking out to its own full-width layout. */
.kos .ph-image.ph-slider,.kos .feature-thumb.ph-slider{position:relative;}
.kos .ph-image.ph-slider ss3-force-full-width,.kos .feature-thumb.ph-slider ss3-force-full-width,
.kos .ph-image.ph-slider .n2-section-smartslider,.kos .feature-thumb.ph-slider .n2-section-smartslider,
.kos .ph-image.ph-slider .n2-ss-slider-wrapper,.kos .feature-thumb.ph-slider .n2-ss-slider-wrapper,
.kos .ph-image.ph-slider .n2-ss-slider,.kos .feature-thumb.ph-slider .n2-ss-slider,
.kos .ph-image.ph-slider .n2-ss-align,.kos .feature-thumb.ph-slider .n2-ss-align,
.kos .ph-image.ph-slider .n2-padding,.kos .feature-thumb.ph-slider .n2-padding,
.kos .ph-image.ph-slider .n2_clear,.kos .feature-thumb.ph-slider .n2_clear{
  position:absolute!important;inset:0!important;width:100%!important;height:100%!important;max-width:none!important;margin:0!important;padding:0!important;
}

/* Hero-as-slider (used when a hero has a Smart Slider ID instead of a single image) */
.kos .hero.hero-slider .hero-slider-bg{position:absolute;inset:0;overflow:hidden;z-index:0;}
.kos .hero.hero-slider .hero-slider-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(25,27,31,.45),rgba(25,27,31,.8));z-index:1;}
.kos .hero.hero-slider .hero-slider-bg ss3-force-full-width,.kos .hero.hero-slider .hero-slider-bg .n2-section-smartslider,
.kos .hero.hero-slider .hero-slider-bg .n2-ss-slider-wrapper,.kos .hero.hero-slider .hero-slider-bg .n2-ss-slider,
.kos .hero.hero-slider .hero-slider-bg .n2-ss-align,.kos .hero.hero-slider .hero-slider-bg .n2-padding,
.kos .hero.hero-slider .hero-slider-bg .n2_clear,.kos .hero.hero-slider .hero-slider-bg .n2-ss-slider-wrapper-inside,
.kos .hero.hero-slider .hero-slider-bg [class*="n2-ss-slider-"]{
  position:absolute!important;inset:0!important;width:100%!important;height:100%!important;max-width:none!important;max-height:none!important;margin:0!important;padding:0!important;
}

/* card grids (n-grid style) */
.kos .n-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.kos .gallery-grid{gap:8px;}
@media (max-width:960px){ .kos .n-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .kos .n-grid{grid-template-columns:1fr;} }
.kos .n-card{background:var(--paper);border:1px solid var(--sand-line);border-radius:2px;overflow:hidden;display:flex;flex-direction:column;}
.kos .n-card .ph-image{aspect-ratio:16/10;border-radius:0;flex:0 0 auto;}
.kos .n-body{padding:22px 24px 28px;display:flex;flex-direction:column;flex:1;}
.kos .n-body .btn{margin-top:auto;align-self:flex-start;}
.kos .n-card h4{font-family:var(--font-display);font-size:1.1em;font-weight:500;}
.kos .n-card p{font-size:.98em;color:var(--text-muted);margin-top:10px;line-height:1.75;}
.kos .n-cat{display:inline-block;font-family:var(--font-en);font-size:.62em;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:var(--lake);padding:4px 10px;border-radius:2px;margin-bottom:10px;}

/* data sections + tables */
.kos .data-section{padding:64px 0;}
.kos .data-section.alt{background:var(--paper-raise);}
.kos .table-wrap{overflow-x:auto;border-top:1px solid var(--sand-line);margin-top:20px;}
.kos table.spec{width:100%;border-collapse:collapse;font-size:1em;}
.kos table.spec tr{border-bottom:1px solid var(--sand-line);}
.kos table.spec th{font-family:var(--font-en);font-size:.7em;letter-spacing:.1em;text-transform:uppercase;color:var(--lake);width:220px;white-space:nowrap;font-weight:400;text-align:left;padding:16px 20px 16px 0;vertical-align:top;}
.kos table.spec td{padding:16px 0;color:var(--text-on-paper);}

/* course menu list */
.kos .course-card{background:var(--paper);border:1px solid var(--sand-line);border-radius:2px;padding:36px;margin-top:30px;}
.kos .course-card .ph-image{aspect-ratio:16/9;max-width:780px;margin:0 auto;}
.kos .course-card h3{font-family:var(--font-display);font-size:1.3em;font-weight:500;margin-bottom:22px;}
.kos .course-list{list-style:none;margin:0;padding:0;}
.kos .course-list li{display:flex;gap:20px;padding:12px 0;border-bottom:1px solid var(--sand-line);font-size:.98em;}
.kos .course-list li:last-child{border-bottom:none;}
.kos .course-list .course-step{flex:0 0 140px;font-family:var(--font-en);font-size:.85em;letter-spacing:.04em;color:var(--ember);}
.kos .course-stages{margin:0;}
.kos .course-stage{padding:14px 0;border-bottom:1px solid var(--sand-line);}
.kos .course-stage:last-child{border-bottom:none;}
.kos .course-stage .stage-label{display:block;font-family:var(--font-en);font-size:.85em;letter-spacing:.08em;color:var(--ember);margin-bottom:8px;}
.kos .stage-dishes{list-style:none;margin:0;padding:0;}
.kos .stage-dishes li{font-size:.98em;line-height:1.8;color:var(--text-on-paper);}
.kos .course-note{margin-top:16px;font-size:.85em;color:var(--text-muted);}

/* FAQ accordion */
.kos .faq-toc{padding:48px 0 0;}
.kos .faq-toc ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 14px;margin:0;padding:0;}
.kos .faq-toc a{display:inline-block;padding:8px 18px;border:1px solid var(--sand-line);border-radius:999px;font-family:var(--font-en);font-size:.72em;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);text-decoration:none;}
.kos .faq-toc a:hover{background:var(--ember);border-color:var(--ember);color:#fff;}
.kos .faq-section{padding:0 0 40px;}
.kos .faq-cat-heading{font-family:var(--font-display);font-weight:500;font-size:1.4em;color:var(--lake);margin:56px 0 0;scroll-margin-top:96px;}
.kos section[id]{scroll-margin-top:96px;}
.kos .faq-cat-heading:first-of-type{margin-top:44px;}
.kos .faq-group{margin-top:20px;}
.kos .faq-item{border-bottom:1px solid var(--sand-line);}
.kos .faq-item summary{list-style:none;padding:22px 0;cursor:pointer;display:flex;gap:16px;align-items:baseline;font-size:1.02em;}
.kos .faq-item summary::-webkit-details-marker{display:none;}
.kos .faq-item summary .qmark{font-family:var(--font-display);color:var(--lake);font-size:1.2em;flex:0 0 auto;}
.kos .faq-item summary .qtext{flex:1;}
.kos .faq-item summary::after{content:"+";font-family:var(--font-en);color:var(--ember);margin-left:auto;font-size:1.1em;}
.kos .faq-item[open] summary::after{content:"–";}
.kos .faq-item .a-body{display:flex;gap:16px;padding:0 0 26px;}
.kos .faq-item .a-body .amark{font-family:var(--font-display);color:var(--ember);font-size:1.2em;flex:0 0 auto;}
.kos .faq-item .a-body p{margin:0;color:var(--text-muted);font-size:1.02em;line-height:1.85;}

/* breadcrumb */
.kos .crumb{padding:24px 0;border-top:1px solid var(--sand-line);}
.kos .crumb .container{font-family:var(--font-en);font-size:.72em;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);}
.kos .crumb .sep{margin:0 8px;}
.kos .crumb .current{color:var(--ink);}

/* footer */
.kos .site-footer{background:var(--ink);color:#f2ede0;}
.kos .site-footer .container{max-width:none;padding:0 32px;}
.kos .footer-top{padding:70px 0 50px;display:grid;grid-template-columns:1.2fr 1fr;gap:50px;max-width:var(--maxw);margin:0 auto;}
@media (max-width:760px){ .kos .footer-top{grid-template-columns:1fr;gap:30px;} }
.kos .footer-brand a{font-family:var(--font-en);font-size:1em;letter-spacing:.16em;text-transform:uppercase;color:#f2ede0;text-decoration:none;}
.kos .footer-brand address,.kos .footer-brand p{font-style:normal;font-size:.88em;color:#b9b2a4;margin-top:12px;line-height:1.8;}
.kos .footer-nav{display:flex;flex-wrap:wrap;gap:14px 24px;align-content:flex-start;}
.kos .footer-nav a{font-family:var(--font-en);font-size:.78em;letter-spacing:.06em;text-transform:uppercase;color:#c9c2b3;text-decoration:none;}
.kos .footer-bottom{text-align:center;font-size:.7em;color:#736c60;padding:24px 0;border-top:1px solid rgba(255,255,255,.08);max-width:var(--maxw);margin:0 auto;}

/* reservation float */
.kos .rd-reserve-float{position:fixed;right:24px;bottom:24px;z-index:200;display:none;}
@media (min-width:900px){ .kos .rd-reserve-float{display:block;} }
.kos .rd-reserve-float a{display:inline-flex;align-items:center;gap:8px;background:var(--ember);color:#fff;font-family:var(--font-en);font-size:.78em;letter-spacing:.08em;text-transform:uppercase;padding:14px 24px;border-radius:2px;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.35);}
.kos .rd-sticky{position:fixed;left:0;right:0;bottom:0;z-index:200;display:flex;background:var(--ink);}
@media (min-width:900px){ .kos .rd-sticky{display:none;} }
.kos .rd-sticky a{flex:1;text-align:center;padding:14px 6px;font-family:var(--font-en);font-size:.68em;letter-spacing:.04em;text-transform:uppercase;color:#f2ede0;text-decoration:none;background:var(--ember);}