/* ============ Design system / theme ============ */
:root{
  --primary:#6d5cff; --secondary:#00c9a7; --radius:16px;
  --font-ar:'Cairo',system-ui,'Segoe UI',sans-serif;
  --font-en:'Inter',system-ui,'Segoe UI',sans-serif;
  --shadow-s:0 2px 10px rgba(15,13,29,.06);
  --shadow-m:0 8px 30px rgba(15,13,29,.10);
  --shadow-l:0 18px 60px rgba(15,13,29,.16);
  --grad:linear-gradient(135deg,var(--primary),var(--secondary));
  --safe-b:env(safe-area-inset-bottom,0px);
}
html[data-theme="dark"]{
  --bg:#0f0d1d; --bg2:#171530; --bg3:#1f1d3d; --bg-hover:#262348;
  --text:#f1f0ff; --text2:#a8a5c8; --line:rgba(255,255,255,.08);
  --glass:rgba(23,21,48,.75);
  --ok:#22c58b; --warn:#f5a524; --bad:#f4436c; --info:#4cc3ff;
  --shadow-s:0 2px 10px rgba(0,0,0,.25);
  --shadow-m:0 8px 30px rgba(0,0,0,.35);
  --shadow-l:0 18px 60px rgba(0,0,0,.5);
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#f6f7fb; --bg2:#ffffff; --bg3:#f0f1f7; --bg-hover:#e9ebf4;
  --text:#191830; --text2:#62627e; --line:rgba(20,20,50,.08);
  --glass:rgba(255,255,255,.8);
  --ok:#0fae70; --warn:#e8971e; --bad:#e93d63; --info:#0e9de5;
  color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-ar); background:var(--bg); color:var(--text);
  line-height:1.7; min-height:100vh; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
html[data-lang="en"] body{font-family:var(--font-en)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:99px}
::-webkit-scrollbar-track{background:transparent}

/* ---------- typography ---------- */
h1,h2,h3,h4{line-height:1.4;font-weight:800}
.sec-title{font-size:clamp(20px,3vw,28px);display:flex;align-items:center;gap:10px}
.sec-title .ic{width:34px;height:34px;border-radius:10px;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;color:#fff;flex:none}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.sec-sub{color:var(--text2);font-size:14px;margin-top:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:calc(var(--radius) * .75);font-weight:700;font-size:14.5px;
  transition:transform .18s ease, box-shadow .18s ease, background .18s, opacity .18s;
  border:1px solid transparent; user-select:none; white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 20px color-mix(in srgb, var(--primary) 35%, transparent)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px color-mix(in srgb, var(--primary) 45%, transparent)}
.btn-ghost{background:var(--bg3);color:var(--text);border-color:var(--line)}
.btn-ghost:hover{background:var(--bg-hover)}
.btn-outline{border-color:color-mix(in srgb, var(--primary) 55%, transparent);color:var(--primary)}
.btn-outline:hover{background:color-mix(in srgb, var(--primary) 10%, transparent)}
.btn-danger{background:color-mix(in srgb, var(--bad) 14%, transparent);color:var(--bad);border-color:color-mix(in srgb, var(--bad) 30%, transparent)}
.btn-danger:hover{background:color-mix(in srgb, var(--bad) 22%, transparent)}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:10px}
.btn-sm svg{width:15px;height:15px}
.btn-lg{padding:13px 28px;font-size:16px}
.btn[disabled]{opacity:.55;pointer-events:none}
.btn-icon{width:38px;height:38px;padding:0;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:var(--bg3);border:1px solid var(--line);transition:background .15s,transform .15s}
.btn-icon:hover{background:var(--bg-hover)}
.btn-icon:active{transform:scale(.94)}
.btn-icon svg{width:18px;height:18px}

/* ---------- forms ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--text2)}
.field label b{color:var(--bad)}
.input,.select,.textarea{
  width:100%;padding:11px 14px;border-radius:calc(var(--radius) * .7);
  border:1.5px solid var(--line);background:var(--bg);color:var(--text);
  transition:border-color .18s, box-shadow .18s;font-size:14.5px;
}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent)}
.textarea{min-height:110px;resize:vertical;line-height:1.8}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text2) 50%),linear-gradient(135deg,var(--text2) 50%,transparent 50%);background-position:calc(0% + 18px) 50%, calc(0% + 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-inline-start:34px}
[dir="ltr"] .select{background-position:calc(100% - 18px) 50%, calc(100% - 13px) 50%;padding-inline-start:14px;padding-inline-end:34px}
.input-wrap{position:relative}
.input-wrap svg{position:absolute;inset-inline-start:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--text2);pointer-events:none}
.input-wrap .input{padding-inline-start:40px}
.check{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none}
.check input{width:18px;height:18px;accent-color:var(--primary)}
.hint{font-size:12.5px;color:var(--text2);margin-top:5px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}
fieldset{border:1.5px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:18px}
legend{font-weight:800;font-size:14px;padding:0 8px;color:var(--primary)}

/* ---------- switch ---------- */
.switch{position:relative;width:44px;height:25px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch i{position:absolute;inset:0;border-radius:99px;background:var(--bg-hover);border:1px solid var(--line);transition:.2s;cursor:pointer}
.switch i::after{content:'';position:absolute;top:2px;inset-inline-start:2px;width:19px;height:19px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 4px rgba(0,0,0,.3)}
.switch input:checked + i{background:var(--primary);border-color:var(--primary)}
.switch input:checked + i::after{transform:translateX(19px)}
[dir="rtl"] .switch input:checked + i::after{transform:translateX(-19px)}

/* ---------- cards / badges ---------- */
.card{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s)}
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:99px;font-size:11.5px;font-weight:800}
.badge svg{width:12px;height:12px}
.badge-new{background:color-mix(in srgb, var(--ok) 16%, transparent);color:var(--ok)}
.badge-discount{background:color-mix(in srgb, var(--bad) 14%, transparent);color:var(--bad)}
.badge-popular{background:color-mix(in srgb, var(--warn) 16%, transparent);color:var(--warn)}
.badge-soon{background:color-mix(in srgb, var(--info) 15%, transparent);color:var(--info)}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:99px;background:var(--bg3);border:1px solid var(--line);font-size:12px;color:var(--text2)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:99px;background:var(--bg3);border:1.5px solid var(--line);font-size:13.5px;font-weight:600;cursor:pointer;transition:.15s}
.chip:hover{background:var(--bg-hover)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- modal ---------- */
.modal-back{position:fixed;inset:0;z-index:120;background:rgba(8,7,20,.6);backdrop-filter:blur(6px);display:flex;align-items:flex-end;justify-content:center;opacity:0;transition:opacity .25s}
.modal-back.show{opacity:1}
.modal{background:var(--bg2);border:1px solid var(--line);width:100%;max-width:560px;max-height:92dvh;overflow:auto;
  border-radius:var(--radius) var(--radius) 0 0;padding:22px;transform:translateY(40px);transition:transform .3s cubic-bezier(.2,.9,.3,1.2);
  padding-bottom:calc(22px + var(--safe-b))}
.modal-back.show .modal{transform:none}
@media(min-width:640px){
  .modal-back{align-items:center;padding:20px}
  .modal{border-radius:var(--radius);transform:translateY(20px) scale(.97)}
}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.modal-head h3{font-size:18px}
.modal-x{width:34px;height:34px;border-radius:10px;background:var(--bg3);display:flex;align-items:center;justify-content:center}
.modal-x svg{width:17px;height:17px}

/* ---------- toast ---------- */
#toasts{position:fixed;bottom:calc(18px + var(--safe-b));inset-inline-start:50%;transform:translateX(-50%);z-index:200;display:flex;flex-direction:column;gap:10px;width:min(92vw,420px)}
[dir="ltr"] #toasts{transform:translateX(-50%)}
.toast{display:flex;align-items:center;gap:12px;background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:13px 16px;box-shadow:var(--shadow-l);animation:toastIn .35s cubic-bezier(.2,.9,.3,1.2);font-size:14px;font-weight:600}
.toast.out{animation:toastOut .3s forwards}
.toast .t-ic{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex:none}
.toast .t-ic svg{width:18px;height:18px}
.toast-ok .t-ic{background:color-mix(in srgb, var(--ok) 15%, transparent);color:var(--ok)}
.toast-err .t-ic{background:color-mix(in srgb, var(--bad) 15%, transparent);color:var(--bad)}
.toast-info .t-ic{background:color-mix(in srgb, var(--info) 15%, transparent);color:var(--info)}
.toast .t-close{margin-inline-start:auto;color:var(--text2)}
@keyframes toastIn{from{opacity:0;transform:translateY(16px) scale(.96)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateY(10px) scale(.96)}}

/* ---------- skeleton & reveal ---------- */
.skel{background:linear-gradient(90deg,var(--bg3) 25%,var(--bg-hover) 50%,var(--bg3) 75%);background-size:200% 100%;animation:skel 1.3s infinite;border-radius:12px}
@keyframes skel{to{background-position:-200% 0}}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- empty state ---------- */
.empty{text-align:center;padding:50px 20px;color:var(--text2)}
.empty svg{width:52px;height:52px;margin:0 auto 14px;opacity:.4}
.empty p{font-size:15px}

/* ---------- pro badge pulse (new product) ---------- */
@keyframes badgePulse{0%,100%{transform:scale(1)}50%{transform:scale(1.12)}}
.badge-new.pulse{animation:badgePulse 1.6s ease-in-out infinite}

/* ---------- a11y ---------- */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}