/*
Theme Name: Satomi Niwa Portfolio
Theme URI: https://pd-i.net/satomi
Author: +design Inc.
Author URI: https://pd-i.net
Description: Portfolio site for Satomi Niwa, Art Director & Designer
Version: 1.0
*/

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--white:#FFFFFF;--off:#F8F8F6;--gray-100:#F2F2F0;--gray-200:#E4E4E0;--gray-400:#AAAAAA;--gray-600:#666660;--black:#111110;--border:#E0E0DC}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--black);font-family:'Noto Sans JP','Inter',sans-serif;font-weight:400;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}ul{list-style:none}img{display:block;max-width:100%}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}

/* Header */
#site-header{position:fixed;top:0;left:0;width:100%;z-index:200;padding:20px 0;border-bottom:1px solid transparent;transition:background .3s,padding .3s,border-color .3s}
#site-header.scrolled{background:rgba(255,255,255,.94);backdrop-filter:blur(16px);padding:14px 0;border-color:var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.header-logo img{height:20px;width:auto}
.header-name{font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--gray-600)}
.site-nav{display:flex;align-items:center;gap:32px}
.site-nav a{font-size:12px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-600);transition:color .2s}
.site-nav a:hover{color:var(--black)}

/* Hero */
#hero{min-height:100vh;display:flex;align-items:flex-end;padding-bottom:80px;position:relative;overflow:hidden;background:rgba(17,17,16,0.6);border-bottom:1px solid #222}
.hero-bg-img{display:none}
.hero-content{position:relative;z-index:1;padding-top:160px}
.hero-role{font-size:11px;font-weight:600;letter-spacing:4px;text-transform:uppercase;color:var(--gray-400);margin-bottom:20px;display:flex;align-items:center;gap:12px;opacity:0;animation:fadeUp .9s ease forwards .2s}
.hero-role::before{content:'';width:28px;height:1px;background:var(--gray-400)}
.hero-name{font-family:'Noto Serif JP',serif;font-size:clamp(28px,3.2vw,48px);font-weight:300;line-height:1.15;letter-spacing:-.02em;color:var(--white);margin-bottom:8px;opacity:0;animation:fadeUp .9s ease forwards .4s}
.hero-name-en{font-size:clamp(16px,2vw,24px);font-weight:300;letter-spacing:.15em;color:var(--gray-400);margin-bottom:32px;opacity:0;animation:fadeUp .9s ease forwards .55s}
.hero-desc{font-size:14px;color:var(--gray-400);line-height:2;max-width:520px;margin-bottom:24px;opacity:0;animation:fadeUp .9s ease forwards .7s}
.hero-clients{font-size:12px;color:var(--gray-600);line-height:2;opacity:0;animation:fadeUp .9s ease forwards .85s}
.hero-clients strong{color:var(--gray-400);font-weight:600}
.hero-scroll-cta{display:inline-flex;align-items:center;gap:10px;font-size:11px;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:var(--white);margin-top:48px;opacity:0;animation:fadeUp .9s ease forwards 1s}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* Works */
#works{padding:100px 0}
.works-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:48px;flex-wrap:wrap;gap:24px}
.works-title{font-family:'Noto Serif JP',serif;font-size:clamp(28px,3vw,40px);font-weight:300}
.works-title strong{font-weight:700}
.filter-bar{display:flex;gap:8px;flex-wrap:wrap}
.filter-btn{font-size:11px;font-weight:600;letter-spacing:2px;text-transform:uppercase;padding:7px 16px;border:1px solid var(--border);border-radius:1px;cursor:pointer;background:transparent;color:var(--gray-600);transition:background .2s,color .2s,border-color .2s}
.filter-btn:hover,.filter-btn.active{background:var(--black);color:var(--white);border-color:var(--black)}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.work-item{position:relative;overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:var(--gray-100)}
.work-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.work-item:hover img{transform:scale(1.04)}
.work-overlay{position:absolute;inset:0;background:rgba(17,17,16,.82);display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:24px;opacity:0;transition:opacity .3s ease}
.work-item:hover .work-overlay{opacity:1}
.work-cat{font-size:10px;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:8px}
.work-title{font-size:13px;font-weight:500;color:var(--white);line-height:1.5}

/* Lightbox */
#lightbox{position:fixed;inset:0;z-index:1000;background:rgba(10,10,10,.96);display:none;align-items:center;justify-content:center;flex-direction:column}
#lightbox.open{display:flex}
.lb-img-wrap{max-width:90vw;max-height:80vh;display:flex;align-items:center;justify-content:center}
.lb-img-wrap img{max-width:100%;max-height:80vh;object-fit:contain}
.lb-caption{margin-top:20px;text-align:center;color:rgba(255,255,255,.7);font-size:13px;letter-spacing:.04em}
.lb-close{position:fixed;top:24px;right:32px;font-size:28px;color:rgba(255,255,255,.7);cursor:pointer;line-height:1;background:none;border:none;transition:color .2s}
.lb-close:hover{color:var(--white)}
.lb-prev,.lb-next{position:fixed;top:50%;transform:translateY(-50%);font-size:32px;color:rgba(255,255,255,.5);background:none;border:none;cursor:pointer;padding:16px;transition:color .2s}
.lb-prev:hover,.lb-next:hover{color:var(--white)}
.lb-prev{left:16px}.lb-next{right:16px}

/* Profile */
#profile{padding:100px 0;border-top:1px solid var(--border);background:var(--off)}
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.profile-label{font-size:11px;font-weight:600;letter-spacing:4px;text-transform:uppercase;color:var(--gray-400);margin-bottom:24px;display:block}
.profile-name-jp{font-family:'Noto Serif JP',serif;font-size:clamp(28px,3vw,44px);font-weight:300;margin-bottom:4px}
.profile-name-en{font-size:14px;letter-spacing:.12em;color:var(--gray-600);margin-bottom:32px}
.profile-body{font-size:14px;color:var(--gray-600);line-height:2.1}
.profile-table{width:100%;border-collapse:collapse;margin-bottom:40px}
.profile-table tr{border-bottom:1px solid var(--border)}
.profile-table tr:first-child{border-top:1px solid var(--border)}
.profile-table td{padding:14px 0;font-size:13px;vertical-align:top}
.profile-table .label{width:100px;color:var(--gray-400);font-weight:500;letter-spacing:.04em}
.works-list h4{font-size:11px;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:var(--gray-400);margin-bottom:16px}
.works-list p{font-size:13px;color:var(--gray-600);line-height:2}

/* Contact */
#contact{padding:100px 0;border-top:1px solid var(--border);background:var(--black);color:var(--white)}
.contact-label{font-size:11px;font-weight:600;letter-spacing:4px;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:24px;display:block}
.contact-title{font-family:'Noto Serif JP',serif;font-size:clamp(28px,3vw,44px);font-weight:300;margin-bottom:24px}
.contact-title strong{font-weight:700}
.contact-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:2;margin-bottom:40px}
.btn-contact{display:inline-flex;align-items:center;gap:10px;background:var(--white);color:var(--black);font-size:13px;font-weight:600;letter-spacing:.08em;padding:14px 28px;border-radius:2px;transition:background .2s}
.btn-contact:hover{background:var(--gray-100)}

/* Footer */
#site-footer{background:var(--black);border-top:1px solid rgba(255,255,255,.08);padding:32px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-inner img{height:18px;width:auto;filter:invert(1);opacity:.6}
.footer-inner p{font-size:12px;color:rgba(255,255,255,.4)}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:900px){.works-grid{grid-template-columns:repeat(2,1fr)}.profile-grid{grid-template-columns:1fr;gap:48px}}
@media(max-width:600px){.works-grid{grid-template-columns:1fr}.container{padding:0 20px}}