/* Ahmad Ahmadi — site styles. Bootstrap 5 handles grid, navbar and modal; everything visual is here. */
:root,[data-bs-theme=dark]{--bg:#2b2142;--bg-deep:#231a38;--surface:#372b57;--raised:#43356a;--line:#5d4d80;--text:#fbf9ff;--muted:#d6cce7;--accent:#c8adff;--accent-2:#a67cff;--on-accent:#24123f;--glow:rgba(166,124,255,.22);--shadow:0 18px 40px rgba(12,6,24,.28)}
[data-bs-theme=light]{--bg:#f7f3fd;--bg-deep:#ece4f8;--surface:#fff;--raised:#f1eafb;--line:#d8ccee;--text:#241638;--muted:#5b4c74;--accent:#6b3cd0;--accent-2:#7c4dff;--on-accent:#fff;--glow:rgba(124,77,255,.14);--shadow:0 18px 40px rgba(60,30,110,.12)}
html{scroll-behavior:smooth}
body{background:radial-gradient(1100px 520px at 78% -6%,var(--glow),transparent 70%),var(--bg);background-attachment:fixed;color:var(--text);font-family:'Sora',Arial,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px;border-radius:4px}
h1,h2,h3,h4,p{margin-top:0}
h1,h2{font-family:'Fraunces',Georgia,serif;font-weight:400;letter-spacing:-.03em;color:var(--text)}
h1{font-size:clamp(42px,5.4vw,68px);line-height:1.1;margin-bottom:26px}
h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(30px,3.2vw,42px);line-height:1.2}
h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
h4{font-size:15px;font-weight:500;color:var(--accent);margin-bottom:16px}
p{color:var(--muted)}
.lead{font-size:18px;max-width:640px;line-height:1.85}
.kicker{display:block;color:var(--accent);font-size:14px;font-weight:600;margin-bottom:16px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--on-accent);padding:10px 16px;border-radius:6px;z-index:99}.skip:focus{left:8px}

/* header */
.site-header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header .navbar{padding:14px 0;--bs-navbar-toggler-focus-width:0}
.brand{display:flex;align-items:center;gap:14px;font-weight:700;font-size:18px;line-height:1.25}
.brand img{width:46px;height:auto;background:#fff;border-radius:10px;padding:5px;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.brand small{display:block;font-weight:400;font-size:12px;color:var(--muted);margin-top:3px}
.site-nav .nav-link{color:var(--text);font-size:14px;padding:8px 14px;border-radius:999px;transition:background .2s,color .2s}
.site-nav .nav-link:hover{background:var(--raised);color:var(--text)}
.site-nav .nav-link.active{background:var(--accent);color:var(--on-accent);font-weight:600}
.icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--text);display:inline-grid;place-items:center;cursor:pointer}
.icon-btn:hover{border-color:var(--accent)}
.icon-btn svg{width:18px;height:18px}
[data-bs-theme=dark] .i-moon,[data-bs-theme=light] .i-sun{display:none}
.navbar-toggler{border:1px solid var(--line);color:var(--text);padding:8px 10px}
.navbar-toggler-icon{filter:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23a67cff' stroke-linecap='round' stroke-width='2.4' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e")}
@media(max-width:991px){.site-nav{padding:14px 0 6px}.site-nav .nav-link{padding:12px 14px}}

/* buttons */
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;background:var(--accent);color:var(--on-accent);font-weight:600;font-size:14px;border:1px solid var(--accent);cursor:pointer;transition:transform .2s,box-shadow .2s}
.cta-btn:hover{color:var(--on-accent);transform:translateY(-2px);box-shadow:0 10px 24px var(--glow)}
.cta-btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}.cta-btn.ghost:hover{color:var(--text);border-color:var(--accent)}

/* hero */
.hero{padding:84px 0 64px}
.location{margin-top:40px;font-size:14px;color:var(--muted);display:flex;gap:10px;align-items:center}
.location i{width:9px;height:9px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 5px var(--glow)}
.map-card{background:linear-gradient(160deg,var(--surface),var(--bg-deep));border:1px solid var(--line);border-radius:22px;padding:22px 22px 18px;box-shadow:var(--shadow)}
.map-card header{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:6px}
.map-card h2{font-size:24px;margin:0}
.map-card small{color:var(--muted);font-size:12px}
.map-svg{width:100%;height:auto;display:block}
.map-svg .dots{fill:var(--line);opacity:.55}
.map-svg .route{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-dasharray:6 7;opacity:.9}
.map-svg .pt{fill:var(--accent-2);stroke:var(--bg);stroke-width:3}
.map-svg .pt.base{fill:var(--accent);r:9}
.map-svg .halo{fill:var(--accent-2);opacity:.22}
.map-svg text{fill:var(--text);font:600 13px 'Sora',sans-serif}
.map-svg text.sub{fill:var(--muted);font-weight:400;font-size:11px}
@media(prefers-reduced-motion:no-preference){
 .map-svg .route{stroke-dashoffset:400;animation:draw 1.6s ease-out forwards}
 .map-svg .r2{animation-delay:.35s}.map-svg .r3{animation-delay:.7s}
 .map-svg .halo{animation:pulse 3s ease-in-out infinite;transform-origin:center;transform-box:fill-box}
 @keyframes draw{to{stroke-dashoffset:0}}
 @keyframes pulse{50%{transform:scale(1.5);opacity:.05}}
}
.map-legend{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.map-legend span{font-size:12px;padding:5px 12px;border-radius:999px;background:var(--raised);color:var(--text)}

/* stats */
.stats{border-block:1px solid var(--line);background:color-mix(in srgb,var(--surface) 55%,transparent)}
.stat{padding:30px 10px;text-align:center}
.stat strong{display:block;font-family:'Fraunces',Georgia,serif;font-weight:400;font-size:clamp(30px,3.4vw,42px);line-height:1.2;color:var(--text)}
.stat span{font-size:14px;color:var(--muted)}
@media(min-width:768px){.stat+.stat{border-left:1px solid var(--line)}}

/* sections & cards */
.section{padding:84px 0 0}
.section-head{max-width:640px;margin-bottom:38px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px;height:100%;transition:transform .25s,border-color .25s}
.panel:hover{transform:translateY(-4px);border-color:var(--accent)}
.panel .mark{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;background:var(--raised);color:var(--accent);margin-bottom:22px}
.panel .mark svg{width:24px;height:24px}
.panel p{font-size:15px;margin:0}
.panel.static:hover{transform:none;border-color:var(--line)}
.panel .big{font-family:'Fraunces',Georgia,serif;font-size:34px;color:var(--accent);line-height:1;margin-bottom:20px;display:block}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips span{padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;background:var(--surface);color:var(--text)}
.cta-band{margin-top:96px;padding:64px 0;background:linear-gradient(120deg,var(--surface),var(--raised));border-block:1px solid var(--line)}
.cta-band p{max-width:600px}

/* page intro & about */
.page-intro{padding:76px 0 30px}
.page-intro h1{font-size:clamp(40px,5vw,62px)}
.timeline article{padding:32px 0;border-top:1px solid var(--line)}
.timeline .when{color:var(--accent);font-size:14px;font-weight:600}
.timeline .when span{display:block;color:var(--muted);font-weight:400;margin-top:6px}
.timeline p{font-size:15px;max-width:680px}
.lang{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
.lang dt{font-weight:600}.lang dd{margin:0;color:var(--muted);text-align:right}
.award{display:flex;gap:20px;align-items:center}

/* gallery */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.filters button{border:1px solid var(--line);background:var(--surface);color:var(--text);padding:8px 20px;border-radius:999px;font-size:14px;cursor:pointer;transition:background .2s}
.filters button:hover{border-color:var(--accent)}
.filters button[aria-pressed=true]{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:600}
.gallery-count{font-size:14px;margin-bottom:22px}
.masonry{column-count:3;column-gap:20px}
@media(max-width:991px){.masonry{column-count:2}}@media(max-width:575px){.masonry{column-count:1}}
.tile{break-inside:avoid;margin:0 0 20px}
.tile button{display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface);cursor:zoom-in;position:relative}
.tile img{width:100%;height:auto;display:block;transition:transform .5s}
.tile button:hover img{transform:scale(1.04)}
.tile .cap-o{position:absolute;inset:auto 0 0;padding:34px 16px 14px;font-size:13px;text-align:left;color:#fff;background:linear-gradient(transparent,rgba(20,10,36,.85));opacity:0;transition:opacity .25s}
.tile button:hover .cap-o,.tile button:focus-visible .cap-o{opacity:1}
@media(hover:none){.tile .cap-o{opacity:1}}
.modal-content{background:var(--bg-deep);border:1px solid var(--line);border-radius:18px;color:var(--text)}
.modal-body{text-align:center;padding:14px}
.modal-body img{max-width:100%;max-height:64vh;border-radius:10px}
.modal-body p{margin:14px 0 4px;color:var(--text)}
.lb-bar{display:flex;justify-content:space-between;align-items:center;padding:8px 8px 4px}
.lb-nav{display:flex;align-items:center;gap:14px;justify-content:center;padding:6px 0 14px;font-size:14px;color:var(--muted)}

/* contact */
.mail{font-family:'Fraunces',Georgia,serif;font-size:clamp(26px,3.6vw,40px);color:var(--accent);word-break:break-word;display:block;margin:10px 0 18px}
.link-row{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
.link-row:last-child{border:0}.link-row span{color:var(--muted)}

/* footer */
.site-footer{margin-top:96px;background:var(--bg-deep);border-top:1px solid var(--line);padding:54px 0 22px}
.site-footer p{font-size:14px;margin:18px 0 0}
.site-footer .foot-h{font-weight:600;font-size:14px;color:var(--accent);display:block;margin-bottom:14px}
.foot-bottom{margin-top:38px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted)}
.social a{display:block;padding:5px 0;font-size:15px}

.intro-rule{border-top:1px solid var(--line);padding-top:calc(3rem + 12px)}
.timeline article:last-child{border-bottom:1px solid var(--line)}