:root{--ink:#17212e;--mut:#667587;--pri:#1f6f8b;--pri2:#154f64;--acc:#f2a33a;--bg:#f5f8fb;--card:#fff;--line:#e3e9ef;--err:#d64545}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Tahoma,"Noto Sans Arabic",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:inherit}button,input,select,textarea{font:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border:0;border-radius:14px;background:var(--pri);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;transition:.2s}
.btn:hover{background:var(--pri2);transform:translateY(-1px)}.btn.ghost{background:#fff;color:var(--pri);border:1.5px solid var(--pri)}.btn.acc{background:var(--acc);color:#2a1c05}.btn.acc:hover{background:#e29423}.btn.full{width:100%}
.muted{color:var(--mut)}code{background:#eef3f7;padding:2px 6px;border-radius:6px;font-size:.9em}

/* ---------- home */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;color:#fff;background:#78b9d8 url(../img/hero.jpg) center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#07203080 0,#0720301a 35%,#072030cc 100%)}
.nav{position:relative;z-index:2;display:flex;align-items:center;gap:18px;padding:18px clamp(16px,5vw,64px)}
.brand{font-size:22px;font-weight:800;text-decoration:none;display:flex;gap:10px;align-items:center}.brand span{font-size:28px}
.nav .sp{flex:1}.nav a.l{text-decoration:none;opacity:.92}.nav a.l:hover{opacity:1;text-decoration:underline}
.hero-in{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;padding:0 clamp(16px,5vw,64px) 80px;max-width:900px}
.hero h1{font-size:clamp(34px,6vw,68px);line-height:1.15;margin:0 0 14px;text-shadow:0 4px 30px #0007}
.hero p{font-size:clamp(16px,2vw,21px);max-width:620px;opacity:.95;margin:0 0 28px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}.hero .btn{padding:15px 30px;font-size:18px}.hero .btn.ghost{background:#ffffff26;color:#fff;border-color:#fff;backdrop-filter:blur(6px)}
.sec{max-width:1180px;margin:0 auto;padding:64px 20px}.sec h2{font-size:32px;margin:0 0 6px}.sec .sub{color:var(--mut);margin:0 0 28px}
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 6px 24px #1f3a5010}.feat .i{font-size:34px}.feat h3{margin:8px 0 4px}.feat p{margin:0;color:var(--mut)}
.shops{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px}
.shopchip{background:var(--card);border:1px solid var(--line);border-top:5px solid var(--a,#1f6f8b);border-radius:16px;padding:16px;text-align:center}.shopchip .i{font-size:34px}.shopchip b{display:block;margin-top:4px}.shopchip small{color:var(--mut)}
.band{background:linear-gradient(135deg,#1f6f8b,#154f64);color:#fff;border-radius:28px;padding:40px;display:flex;gap:24px;align-items:center;flex-wrap:wrap}.band h2{margin:0}.band .sp{flex:1}
footer{text-align:center;color:var(--mut);padding:30px;font-size:14px}

/* ---------- auth + installer */
.auth-body{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(rgba(10,40,60,.55),rgba(10,40,60,.7)),#78b9d8 url(../img/hero.jpg) center/cover fixed}
.auth-card{width:min(440px,100%);background:#fff;border-radius:24px;padding:30px;box-shadow:0 20px 70px #0006}.auth-card.wide{width:min(720px,100%)}
.auth-card h1{margin:0 0 6px;font-size:26px}.auth-card h2{font-size:18px;margin:22px 0 6px;color:var(--pri)}
label{display:block;font-size:14px;color:var(--mut);margin:12px 0 0}
input,select{width:100%;padding:12px 14px;margin-top:5px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:0;border-color:var(--pri);box-shadow:0 0 0 3px #1f6f8b22}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:560px){.grid2{grid-template-columns:1fr}}
label.chk{display:flex;gap:10px;align-items:center;color:var(--ink);margin-top:16px}label.chk input{width:auto;margin:0}
.alert,.err{background:#fdecec;color:var(--err);padding:10px 14px;border-radius:12px;margin:10px 0;font-size:14px}
.note{background:#eef7fb;border:1px solid #cfe5ef;border-radius:14px;padding:14px;margin:14px 0;font-size:14px}
.checks{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.checks span{padding:4px 10px;border-radius:20px;font-size:13px}.checks .ok{background:#e6f5ea;color:#1d7a35}.checks .bad{background:#fdecec;color:var(--err)}.checks small{opacity:.7}
.auth-card .btn{margin-top:20px}.row-btns{display:flex;gap:10px;flex-wrap:wrap}
.switch{text-align:center;margin-top:16px;color:var(--mut);font-size:14px}.switch a{color:var(--pri);font-weight:700}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}.seg label{margin:0;cursor:pointer}.seg input{display:none}
.seg span{display:flex;flex-direction:column;align-items:center;gap:2px;padding:12px;border:1.5px solid var(--line);border-radius:14px;color:var(--ink);font-weight:600}.seg span i{font-size:28px;font-style:normal}
.seg input:checked+span{border-color:var(--pri);background:#e8f3f8;color:var(--pri)}
.colors{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}.colors label{margin:0;display:flex;flex-direction:column;align-items:center;font-size:12px}.colors input[type=color]{width:46px;height:38px;padding:0;border-radius:10px;cursor:pointer}
#toasts{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:99;display:flex;flex-direction:column;gap:8px}.toast{background:#17212e;color:#fff;padding:10px 18px;border-radius:12px}.toast.err{background:var(--err)}