@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Arabic:wght@300;400;500;600;700;800&display=swap');
:root {
  --bg:#ffffff; --bg2:#fafafa; --bg3:#f5f5f5; --bg4:#efefef;
  --glass:rgba(255,255,255,.92);
  --orange:#f97316; --orange2:#fb923c; --orange3:#fdba74;
  --bsub:rgba(249,115,22,.10); --bord:rgba(249,115,22,.18); --bord2:rgba(251,146,60,.36);
  --text:#1a0f00; --text2:#7c6050; --text3:#c4a882;
  --shadow:0 8px 32px rgba(249,115,22,.10); --sglow:0 0 28px rgba(249,115,22,.18);
  --r:14px; --rs:10px; --hh:58px; --nh:64px;
  --sidebar-w: 224px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans Arabic',sans-serif;background:var(--bg);color:var(--text);direction:rtl;min-height:100vh;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,textarea,select{font-family:inherit}
::-webkit-scrollbar{width:3px}
::-webkit-scrollbar-track{background:var(--bg2)}
::-webkit-scrollbar-thumb{background:var(--orange);border-radius:2px}

/* ══ HEADER ══ */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--hh);
  padding-top: env(safe-area-inset-top, 0px);
  height: calc(var(--hh) + env(safe-area-inset-top, 0px));
  z-index: 500;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--bord);
  display: flex; align-items: center;
  padding-right: 14px; padding-left: 14px; gap: 8px;
  box-shadow: 0 2px 12px rgba(249,115,22,.08);
}
.header-logo { flex: 1; display: flex; align-items: center; }
.header-logo-text {
  font-size: 20px; font-weight: 800;
  background: linear-gradient(135deg, var(--orange), var(--orange2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.header-actions { display: flex; align-items: center; gap: 7px; }
.hbtn {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--bg3); border: 1px solid var(--bord);
  display: flex; align-items: center; justify-content: center;
  color: var(--text2); font-size: 14px;
  position: relative; cursor: pointer;
  flex-shrink: 0; transition: all .18s;
  -webkit-tap-highlight-color: transparent;
}
.hbtn:hover { background: var(--bsub); border-color: var(--bord2); color: var(--orange); }
.notif-dot { width: 7px; height: 7px; border-radius: 50%; background: #ef4444; border: 1.5px solid var(--bg); position: absolute; top: 5px; left: 5px; display: none; animation: pulsed 2s infinite; }
.cart-badge { width: 16px; height: 16px; border-radius: 50%; background: var(--orange); border: 1.5px solid var(--bg); position: absolute; top: -3px; left: -3px; font-size: 9px; font-weight: 700; color: #fff; display: none; align-items: center; justify-content: center; }
.cart-badge.show { display: flex; }
@keyframes pulsed { 0%,100%{transform:scale(1)} 50%{transform:scale(1.4)} }

/* ══ POPUP ══ */
.popup-bd { position: fixed; inset: 0; z-index: 550; display: none; }
.popup-bd.open { display: block; }
.hpopup {
  position: fixed; top: calc(var(--hh) + env(safe-area-inset-top, 0px) + 4px);
  left: 8px; right: 8px; max-height: 75vh; overflow-y: auto;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--bord2); border-radius: var(--r);
  box-shadow: var(--sglow), var(--shadow);
  z-index: 600; visibility: hidden; opacity: 0; pointer-events: none;
  transform: translateY(-10px) scale(.97);
  transition: all .22s cubic-bezier(.34,1.4,.64,1);
}
.hpopup.open { visibility: visible; opacity: 1; pointer-events: all; transform: translateY(0) scale(1); }
.popup-hd { display: flex; align-items: center; justify-content: space-between; padding: 12px 13px 10px; border-bottom: 1px solid var(--bord); font-size: 12px; font-weight: 700; color: var(--text2); position: sticky; top: 0; background: rgba(255,255,255,.98); }
.popup-close { width: 25px; height: 25px; border-radius: 7px; background: var(--bg3); border: 1px solid var(--bord); display: flex; align-items: center; justify-content: center; color: var(--text3); font-size: 10px; cursor: pointer; transition: all .15s; }
.popup-close:hover { color: var(--text); background: var(--bsub); }

/* search */
.search-wrap { padding: 10px 12px; }
.search-field { display: flex; align-items: center; gap: 8px; background: var(--bg3); border: 1px solid var(--bord); border-radius: var(--rs); padding: 9px 12px; transition: border-color .18s; }
.search-field:focus-within { border-color: var(--orange2); }
.search-field i { color: var(--text3); font-size: 12px; }
.search-field input { flex: 1; background: none; border: none; outline: none; color: var(--text); font-size: 13px; direction: rtl; }
.search-field input::placeholder { color: var(--text3); }
#searchResults { padding: 0 12px 12px; display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.sr-empty { grid-column:1/-1; text-align:center; padding:20px; color:var(--text3); font-size:12px; }
.sr-item { border-radius: 9px; overflow: hidden; background: var(--bg3); border: 1px solid var(--bord); cursor: pointer; transition: all .18s; }
.sr-item:hover { border-color: var(--bord2); transform: translateY(-2px); }
.sr-item img { width: 100%; aspect-ratio: 2/3; object-fit: cover; }
.sr-item .sr-nop { width:100%; aspect-ratio:2/3; display:flex; align-items:center; justify-content:center; background:var(--bg4); color:var(--text3); }
.sr-item span { display:block; padding:4px 6px; font-size:10px; color:var(--text2); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

/* ══ NAVBAR - MOBILE (bottom) ══ */
#site-navbar {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: calc(var(--nh) + env(safe-area-inset-bottom, 0px));
  z-index: 500;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  border-top: 1px solid var(--bord);
  display: flex; align-items: flex-start; justify-content: space-around;
  padding-top: 6px;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  box-shadow: 0 -2px 12px rgba(249,115,22,.08);
}
.nav-item { display: flex; flex-direction: column; align-items: center; gap: 3px; flex: 1; padding: 5px 4px; cursor: pointer; color: var(--text3); text-align: center; -webkit-tap-highlight-color: transparent; transition: color .18s; }
.nav-item i { font-size: 19px; transition: all .22s cubic-bezier(.34,1.56,.64,1); }
.nav-item span { font-size: 10px; font-weight: 500; }
.nav-item.active { color: var(--orange); }
.nav-item.active i { transform: translateY(-2px); filter: drop-shadow(0 0 7px rgba(249,115,22,.5)); }

/* ══ MAIN ══ */
#main-content {
  padding-top: calc(var(--hh) + env(safe-area-inset-top, 0px) + 8px);
  padding-bottom: calc(var(--nh) + env(safe-area-inset-bottom, 0px) + 12px);
  min-height: 100vh;
}
.page { display: none; }
.page.active { display: block; }

/* ══ SECTIONS ══ */
.section { margin-bottom: 24px; }
.section-header { display: flex; align-items: center; gap: 9px; padding: 0 13px; margin-bottom: 10px; }
.section-icon-wrap { width: 28px; height: 28px; border-radius: 7px; flex-shrink: 0; background: var(--bsub); border: 1px solid var(--bord); display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--orange); }
.section-title { font-size: 13px; font-weight: 700; flex: 1; }
.section-arrows { display: none; gap: 6px; align-items: center; }
.section-arrow-btn { width: 28px; height: 28px; border-radius: 8px; background: var(--bg3); border: 1px solid var(--bord); color: var(--text2); display: flex; align-items: center; justify-content: center; font-size: 11px; cursor: pointer; transition: all .18s; -webkit-tap-highlight-color: transparent; padding: 0; }
.section-arrow-btn:hover { background: var(--orange); color: #fff; border-color: var(--orange); transform: translateY(-1px); box-shadow: 0 3px 10px rgba(249,115,22,.3); }
.section-arrow-btn:active { transform: translateY(0) scale(.95); }
.section-more { font-size: 11px; color: var(--orange); display: flex; align-items: center; gap: 3px; cursor: pointer; }
.cards-scroll { display: flex; gap: 10px; padding: 0 13px; overflow-x: auto; scrollbar-width: none; scroll-snap-type: x mandatory; }
.cards-scroll::-webkit-scrollbar { display: none; }

/* ══ BOOK CARD ══ */
.book-card { min-width: 120px; width: 120px; border-radius: 12px; overflow: hidden; background: var(--bg); border: 1px solid var(--bord); flex-shrink: 0; scroll-snap-align: start; cursor: pointer; transition: all .2s; box-shadow: 0 2px 8px rgba(249,115,22,.06); }
.book-card:hover { border-color: var(--bord2); transform: translateY(-3px); box-shadow: 0 6px 20px rgba(249,115,22,.12); }
.bc-img { position: relative; aspect-ratio: 1/1; overflow: hidden; background: var(--bg4); }
.bc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.book-card:hover .bc-img img { transform: scale(1.04); }
.noimg { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; color: var(--text3); font-size: 20px; background: linear-gradient(135deg, #fff5ed, #ffe8d0); }
.bc-save { position: absolute; top: 6px; left: 6px; width: 26px; height: 26px; border-radius: 7px; background: rgba(255,255,255,.85); backdrop-filter: blur(6px); border: 1px solid var(--bord); color: var(--text2); font-size: 10px; display: flex; align-items: center; justify-content: center; transition: all .18s; z-index: 2; }
.bc-save:hover, .bc-save.saved { background: var(--orange); color: #fff; border-color: var(--orange); }
.bc-discount { position: absolute; top: 6px; right: 6px; background: #ef4444; border-radius: 5px; padding: 2px 5px; font-size: 9px; font-weight: 700; color: #fff; }
.bc-info { padding: 6px 8px 8px; }
.bc-title { font-size: 11px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 2px; }
.bc-author { font-size: 10px; color: var(--text3); margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bc-price-row { display: flex; align-items: center; gap: 4px; }
.bc-price { font-size: 12px; font-weight: 700; color: var(--orange); }
.bc-price-old { font-size: 10px; color: var(--text3); text-decoration: line-through; }
.bc-add-btn { width: 100%; padding: 5px; background: var(--bsub); border: 1px solid var(--bord); border-radius: 6px; color: var(--orange); font-size: 10px; font-weight: 600; display: flex; align-items: center; justify-content: center; gap: 3px; margin-top: 5px; transition: all .18s; }
.bc-add-btn:hover { background: var(--orange); color: #fff; border-color: var(--orange); }

/* ══ CATEGORIES PAGE ══ */
.cat-search-wrap { padding: 13px 13px 0; }
.cat-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; padding: 13px; }
.cat-card { border-radius: 14px; overflow: hidden; background: var(--bg3); border: 1px solid var(--bord); cursor: pointer; transition: all .2s; position: relative; padding: 18px 14px; display: flex; flex-direction: column; gap: 6px; min-height: 90px; }
.cat-card:hover { border-color: var(--bord2); box-shadow: var(--shadow); transform: translateY(-2px); }
.cat-card-icon { font-size: 22px; color: var(--orange); }
.cat-card-name { font-size: 13px; font-weight: 700; }
.cat-card-count { font-size: 10px; color: var(--text3); }
.genre-chip { flex-shrink: 0; padding: 6px 14px; border-radius: 20px; font-size: 12px; font-weight: 500; border: 1.5px solid var(--bord2); color: var(--text2); background: transparent; cursor: pointer; transition: all .18s; white-space: nowrap; }
.genre-chip:hover, .genre-chip.active { background: var(--orange); border-color: var(--orange); color: #fff; }
#catResults { padding: 0 13px; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }

/* ══ FAVORITES ══ */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 24px; text-align: center; gap: 12px; }
.empty-state i { font-size: 42px; color: var(--text3); }
.empty-state h3 { font-size: 16px; font-weight: 700; color: var(--text2); }
.empty-state p { font-size: 12px; color: var(--text3); line-height: 1.6; }
#favoritesGrid { padding: 0 13px; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }

/* ══ OFFERS PAGE ══ */
.offers-banner { margin: 0 13px 16px; border-radius: 14px; background: linear-gradient(135deg,#ea6c00,#f97316,#fb923c); padding: 20px 18px; color: #fff; position: relative; overflow: hidden; }
.offers-banner::before { content:''; position:absolute; top:-20px; left:-20px; width:120px; height:120px; background:rgba(255,255,255,.08); border-radius:50%; }
.offers-banner h3 { font-size: 17px; font-weight: 800; margin-bottom: 4px; }
.offers-banner p { font-size: 11px; opacity: .85; }
.offers-grid { padding: 0 13px; display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.offer-card { border-radius: 14px; border: 1px solid var(--bord); background: var(--bg); overflow: hidden; cursor: pointer; transition: all .2s; box-shadow: 0 2px 8px rgba(249,115,22,.06); }
.offer-card:hover { border-color: var(--bord2); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(249,115,22,.12); }
.offer-img { aspect-ratio: 1/1; overflow: hidden; background: var(--bg4); position: relative; }
.offer-img img { width: 100%; height: 100%; object-fit: cover; }
.offer-badge { position: absolute; top: 8px; right: 8px; background: #ef4444; color: #fff; padding: 3px 8px; border-radius: 20px; font-size: 10px; font-weight: 700; }
.offer-info { padding: 10px; }
.offer-title { font-size: 12px; font-weight: 700; margin-bottom: 4px; }
.offer-author { font-size: 10px; color: var(--text3); margin-bottom: 6px; }
.offer-prices { display: flex; align-items: center; gap: 6px; }
.offer-new-price { font-size: 14px; font-weight: 800; color: var(--orange); }
.offer-old-price { font-size: 11px; color: var(--text3); text-decoration: line-through; }

/* ══ CART PAGE ══ */
.cart-page { padding: 13px; }
.cart-item { display: flex; gap: 12px; padding: 12px; margin-bottom: 10px; background: var(--bg); border: 1px solid var(--bord); border-radius: 14px; position: relative; }
.cart-item-img { width: 60px; flex-shrink: 0; border-radius: 8px; overflow: hidden; aspect-ratio: 2/3; background: var(--bg4); }
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info { flex: 1; }
.cart-item-title { font-size: 13px; font-weight: 700; margin-bottom: 2px; }
.cart-item-author { font-size: 11px; color: var(--text3); margin-bottom: 6px; }
.cart-item-price { font-size: 14px; font-weight: 800; color: var(--orange); }
.cart-qty { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.qty-btn { width: 26px; height: 26px; border-radius: 7px; background: var(--bg3); border: 1px solid var(--bord); color: var(--text); font-size: 13px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .15s; }
.qty-btn:hover { background: var(--bsub); border-color: var(--orange); color: var(--orange); }
.qty-num { font-size: 13px; font-weight: 700; min-width: 20px; text-align: center; }
.cart-del { position: absolute; top: 10px; left: 10px; width: 26px; height: 26px; border-radius: 7px; background: rgba(239,68,68,.08); border: 1px solid rgba(239,68,68,.2); color: #ef4444; font-size: 11px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .15s; }
.cart-del:hover { background: rgba(239,68,68,.15); }
.cart-summary { background: var(--bg3); border: 1px solid var(--bord); border-radius: 14px; padding: 16px; margin-top: 14px; }
.cart-summary-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-size: 13px; }
.cart-summary-row.total { font-weight: 800; font-size: 15px; padding-top: 10px; border-top: 1px solid var(--bord); margin-top: 8px; color: var(--orange); }

/* ══ AUTH ══ */
.auth-page { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px 16px; background: var(--bg); background-image: radial-gradient(ellipse 80% 55% at 50% -5%, rgba(249,115,22,.10) 0%, transparent 60%); }
.auth-logo { font-size: 28px; font-weight: 800; margin-bottom: 5px; text-align: center; background: linear-gradient(135deg,var(--orange),var(--orange2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.auth-sub { font-size: 12px; color: var(--text3); margin-bottom: 26px; text-align: center; }
.auth-card { width: 100%; max-width: 360px; background: var(--bg); border: 1px solid var(--bord); border-radius: 18px; padding: 24px 20px; box-shadow: var(--shadow); }
.auth-card h2 { font-size: 17px; font-weight: 800; margin-bottom: 18px; }
.form-group { margin-bottom: 13px; }
.form-group label { display: block; font-size: 12px; font-weight: 500; color: var(--text2); margin-bottom: 6px; }
.form-input { width: 100%; padding: 10px 12px; background: var(--bg3); border: 1px solid var(--bord); border-radius: var(--rs); color: var(--text); font-size: 13px; direction: rtl; outline: none; transition: all .18s; }
.form-input:focus { border-color: var(--orange2); box-shadow: 0 0 0 3px rgba(249,115,22,.10); }
.form-input::placeholder { color: var(--text3); }
.btn-primary { width: 100%; padding: 12px; background: var(--orange); border-radius: var(--rs); color: #fff; font-size: 14px; font-weight: 700; margin-top: 5px; transition: all .18s; box-shadow: 0 4px 16px rgba(249,115,22,.35); cursor: pointer; border: none; font-family: inherit; }
.btn-primary:hover { background: #ea6c00; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 12px; color: var(--text3); }
.auth-switch a { color: var(--orange); font-weight: 600; }
.form-error { background: rgba(239,68,68,.08); border: 1px solid rgba(239,68,68,.22); border-radius: 8px; padding: 8px 12px; font-size: 12px; color: #dc2626; margin-bottom: 12px; display: none; }
.form-error.show { display: block; }

/* ══ ACCOUNT ══ */
.account-page { padding: 13px; }
.profile-section { display: flex; flex-direction: column; align-items: center; padding: 18px 13px; }
.profile-avatar { width: 82px; height: 82px; border-radius: 50%; object-fit: cover; border: 3px solid var(--orange); box-shadow: 0 0 16px rgba(249,115,22,.28); }
.profile-avatar-wrap { position: relative; margin-bottom: 12px; }
.profile-avatar-edit { position: absolute; bottom: 0; left: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--orange); border: 2px solid var(--bg); display: flex; align-items: center; justify-content: center; font-size: 10px; color: #fff; cursor: pointer; }
.profile-name { font-size: 16px; font-weight: 700; margin-bottom: 3px; }
.profile-email { font-size: 11px; color: var(--text3); }
.settings-card { background: var(--bg); border: 1px solid var(--bord); border-radius: var(--r); overflow: hidden; margin-bottom: 12px; box-shadow: 0 2px 8px rgba(249,115,22,.05); }
.settings-item { display: flex; align-items: center; gap: 10px; padding: 12px 13px; border-bottom: 1px solid var(--bord); cursor: pointer; transition: background .15s; }
.settings-item:last-child { border-bottom: none; }
.settings-item:hover { background: var(--bsub); }
.si-icon { width: 28px; height: 28px; border-radius: 7px; background: var(--bsub); display: flex; align-items: center; justify-content: center; color: var(--orange); font-size: 12px; flex-shrink: 0; }
.si-text { flex: 1; font-size: 13px; font-weight: 500; }
.si-arrow { color: var(--text3); font-size: 10px; }
.btn-logout { width: 100%; padding: 12px; background: rgba(239,68,68,.08); border: 1px solid rgba(239,68,68,.2); border-radius: var(--rs); color: #ef4444; font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; font-family: inherit; transition: all .18s; }
.btn-logout:hover { background: rgba(239,68,68,.14); }

/* ══ PRODUCT DETAILS ══ */
.product-page { padding-bottom: 20px; }
.product-cover-wrap { position: relative; background: linear-gradient(160deg, #fff5ed, #ffe8d0); padding: 30px 20px 90px; display: flex; justify-content: center; }
.product-cover { width: 160px; border-radius: 12px; box-shadow: 0 12px 36px rgba(249,115,22,.25); border: 3px solid rgba(255,255,255,.8); }
.product-cover-overlay { position: absolute; bottom: 0; left: 0; right: 0; height: 80px; background: linear-gradient(to top, var(--bg), transparent); }
.product-info { padding: 0 14px 16px; margin-top: -20px; position: relative; }
.product-title { font-size: 20px; font-weight: 900; margin-bottom: 5px; line-height: 1.2; }
.product-author { font-size: 13px; color: var(--text2); margin-bottom: 10px; display: flex; align-items: center; gap: 5px; }
.product-meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.product-meta-item { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--text2); background: var(--bg3); padding: 4px 10px; border-radius: 20px; border: 1px solid var(--bord); }
.product-meta-item i { color: var(--orange); font-size: 10px; }
.product-price-row { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.product-price { font-size: 24px; font-weight: 800; color: var(--orange); }
.product-price-old { font-size: 15px; color: var(--text3); text-decoration: line-through; }
.product-disc-badge { background: var(--orange); color: #fff; padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.product-actions { display: flex; gap: 9px; margin-bottom: 18px; }
.btn-buy { flex: 1; padding: 13px; background: linear-gradient(135deg, #ea6c00, #f97316); border-radius: 12px; color: #fff; font-size: 14px; font-weight: 800; display: flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 4px 18px rgba(249,115,22,.4); transition: all .2s; }
.btn-buy:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(249,115,22,.5); }
.btn-save-p { width: 46px; height: 46px; flex-shrink: 0; background: var(--bg3); border: 1.5px solid var(--bord2); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text2); font-size: 16px; transition: all .18s; cursor: pointer; }
.btn-save-p:hover, .btn-save-p.saved { background: var(--bsub); color: var(--orange); border-color: var(--orange); }
.product-desc { font-size: 13px; color: var(--text2); line-height: 1.75; margin-bottom: 18px; }
.sec-title { font-size: 13px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 7px; }
.sec-title::after { content: ''; flex: 1; height: 1px; background: var(--bord); }
.author-card { display: flex; gap: 12px; align-items: center; background: var(--bg3); border: 1px solid var(--bord); border-radius: 14px; padding: 14px; margin-bottom: 18px; }
.author-avatar { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 2px solid var(--bord2); }
.author-info .author-name { font-size: 14px; font-weight: 700; margin-bottom: 3px; }
.author-info .author-bio { font-size: 11px; color: var(--text2); line-height: 1.5; }

/* ══ CHECKOUT ══ */
.checkout-page { padding: 13px; }
.checkout-section { background: var(--bg); border: 1px solid var(--bord); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.checkout-section h3 { font-size: 14px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 7px; color: var(--text); }
.checkout-section h3 i { color: var(--orange); }

/* ══ PAYMENT PAGE ══ */
.payment-option { display: flex; align-items: center; gap: 12px; padding: 14px; border: 2px solid var(--bord); border-radius: 12px; cursor: pointer; transition: all .18s; margin-bottom: 10px; background: var(--bg); }
.payment-option:hover { border-color: var(--bord2); background: var(--bsub); }
.payment-option.selected { border-color: var(--orange); background: var(--bsub); }
.payment-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--bsub); display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--orange); flex-shrink: 0; }
.payment-label { font-size: 13px; font-weight: 600; }
.payment-sub { font-size: 11px; color: var(--text3); }
.payment-radio { margin-right: auto; width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--bord2); display: flex; align-items: center; justify-content: center; transition: all .18s; }
.payment-option.selected .payment-radio { border-color: var(--orange); }
.payment-option.selected .payment-radio::after { content:''; width:8px; height:8px; border-radius:50%; background:var(--orange); }

/* ══ ADMIN ══ */
.admin-sidebar { position: fixed; top: 0; right: 0; bottom: 0; width: 240px; background: var(--bg); border-left: 1px solid var(--bord); z-index: 100; overflow-y: auto; padding: 20px 0; box-shadow: 0 0 24px rgba(249,115,22,.08); }
.admin-logo { padding: 0 18px 20px; font-size: 18px; font-weight: 800; background: linear-gradient(135deg, var(--orange), var(--orange2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; border-bottom: 1px solid var(--bord); margin-bottom: 10px; }
.admin-nav-item { display: flex; align-items: center; gap: 10px; padding: 11px 18px; font-size: 13px; font-weight: 500; color: var(--text2); cursor: pointer; transition: all .18s; border-right: 3px solid transparent; }
.admin-nav-item:hover { background: var(--bsub); color: var(--orange); }
.admin-nav-item.active { background: var(--bsub); color: var(--orange); border-right-color: var(--orange); font-weight: 700; }
.admin-nav-item i { font-size: 15px; width: 18px; text-align: center; }
.admin-main { margin-right: 240px; padding: 24px; min-height: 100vh; background: var(--bg2); }
.admin-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.admin-title { font-size: 22px; font-weight: 800; }
.stat-cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-bottom: 24px; }
.stat-card { background: var(--bg); border: 1px solid var(--bord); border-radius: 14px; padding: 16px; }
.stat-val { font-size: 26px; font-weight: 800; color: var(--orange); }
.stat-label { font-size: 11px; color: var(--text3); margin-top: 3px; }
.stat-icon { font-size: 22px; color: var(--orange); opacity: .3; float: left; margin-top: -4px; }
.admin-table { background: var(--bg); border: 1px solid var(--bord); border-radius: 14px; overflow: hidden; margin-bottom: 20px; }
.admin-table table { width: 100%; border-collapse: collapse; }
.admin-table th { background: var(--bg3); padding: 10px 14px; text-align: right; font-size: 11px; font-weight: 700; color: var(--text2); border-bottom: 1px solid var(--bord); }
.admin-table td { padding: 10px 14px; font-size: 12px; border-bottom: 1px solid var(--bord); }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bsub); }
.badge-status { padding: 3px 9px; border-radius: 20px; font-size: 10px; font-weight: 600; }
.bs-pending { background: #fef3c7; color: #b45309; }
.bs-done { background: #d1fae5; color: #065f46; }
.bs-ship { background: #dbeafe; color: #1d4ed8; }
.admin-btn { padding: 9px 16px; border-radius: 9px; font-size: 12px; font-weight: 600; cursor: pointer; transition: all .18s; border: none; font-family: inherit; }
.admin-btn.primary { background: var(--orange); color: #fff; }
.admin-btn.primary:hover { background: #ea6c00; }
.admin-btn.ghost { background: var(--bg3); border: 1px solid var(--bord); color: var(--text2); }
.admin-btn.ghost:hover { border-color: var(--orange); color: var(--orange); }
.admin-btn.danger { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.2); color: #ef4444; }

/* ══ TOAST ══ */
.toast { position: fixed; bottom: calc(var(--nh) + env(safe-area-inset-bottom, 0px) + 10px); left: 50%; transform: translateX(-50%) translateY(14px); background: var(--bg); border: 1px solid var(--bord2); border-radius: 10px; padding: 8px 16px; font-size: 12px; font-weight: 600; color: var(--text); z-index: 2000; opacity: 0; transition: all .25s; white-space: nowrap; box-shadow: var(--shadow); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ══ MISC ══ */
.page-head { padding: 13px 13px 0; margin-bottom: 12px; }
.page-head h2 { font-size: 16px; font-weight: 800; margin-bottom: 2px; }
.page-head p { font-size: 11px; color: var(--text3); }
.divider { height: 1px; background: var(--bord); margin: 16px 0; }
.back-btn { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text2); cursor: pointer; padding: 6px 0; transition: color .15s; }
.back-btn:hover { color: var(--orange); }
.back-btn i { font-size: 11px; }

/* ══ PWA BANNER ══ */
.pwa-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); backdrop-filter: blur(5px); z-index: 1900; opacity: 0; pointer-events: none; transition: opacity .28s; }
.pwa-overlay.show { opacity: 1; pointer-events: all; }
.pwa-banner { position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(.9); width: calc(100% - 32px); max-width: 330px; background: var(--bg); border: 1px solid var(--bord2); border-radius: 20px; padding: 24px 20px; box-shadow: var(--sglow), var(--shadow); z-index: 1901; text-align: center; opacity: 0; pointer-events: none; transition: all .32s cubic-bezier(.34,1.56,.64,1); }
.pwa-banner.show { opacity: 1; pointer-events: all; transform: translate(-50%,-50%) scale(1); }
.pwa-icon { width: 58px; height: 58px; border-radius: 14px; background: linear-gradient(135deg,var(--orange),var(--orange2)); margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; color: #fff; box-shadow: 0 7px 20px rgba(249,115,22,.35); }
.pwa-title { font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.pwa-desc { font-size: 12px; color: var(--text2); margin-bottom: 16px; line-height: 1.5; }
.pwa-btn { width: 100%; padding: 12px; background: var(--orange); border: none; border-radius: 12px; color: #fff; font-size: 13px; font-weight: 700; margin-bottom: 8px; cursor: pointer; font-family: inherit; transition: all .18s; box-shadow: 0 4px 16px rgba(249,115,22,.35); }
.pwa-btn:hover { background: #ea6c00; }
.pwa-skip { background: none; border: none; color: var(--text3); font-size: 12px; cursor: pointer; font-family: inherit; padding: 6px; }

/* ══ RESPONSIVE TABLET ══ */
@media (min-width: 640px) {
  .stat-cards { grid-template-columns: repeat(4,1fr); }
  .cat-grid { grid-template-columns: repeat(3,1fr); }
  #catResults, #favoritesGrid, .offers-grid { grid-template-columns: repeat(4,1fr); }
}

/* ══ DESKTOP: أسهم التنقل للسكشنات ══ */
@media (min-width: 1024px) {
  .section-arrows { display: flex; }
}

/* ════════════════════════════════════════════════════════════
   DESKTOP LAYOUT - ناف بار عائم بالأسفل بالوسط
   ════════════════════════════════════════════════════════════ */
@media (min-width: 1024px) {
  
  #site-navbar {
    position: fixed !important;
    bottom: 20px !important; top: auto !important;
    left: 50% !important; right: auto !important;
    transform: translateX(-50%) !important;
    width: auto !important; max-width: 560px !important;
    height: 58px !important;
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 4px !important;
    padding: 6px 10px !important;
    background: rgba(255,255,255,.95) !important;
    backdrop-filter: blur(20px) saturate(160%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(160%) !important;
    border: 1px solid var(--bord) !important;
    border-radius: 18px !important;
    box-shadow: 0 8px 32px rgba(249,115,22,.12), 0 2px 8px rgba(0,0,0,.04) !important;
    z-index: 500 !important;
  }
  
  #site-navbar::before, #site-navbar::after { content: none !important; display: none !important; }
  
  #site-navbar .nav-item {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    flex: 0 0 auto !important; width: auto !important;
    height: 44px !important; min-height: 44px !important; max-height: 44px !important;
    padding: 0 16px !important; margin: 0 !important;
    border-radius: 12px !important;
    color: var(--text2) !important;
    cursor: pointer !important;
    transition: all .2s ease !important;
  }
  
  #site-navbar .nav-item i {
    font-size: 14px !important; width: auto !important;
    margin: 0 !important; transform: none !important;
    filter: none !important; line-height: 1 !important;
  }
  
  #site-navbar .nav-item span {
    font-size: 12.5px !important; font-weight: 600 !important;
    margin: 0 !important; padding: 0 !important;
    flex: 0 0 auto !important; line-height: 1 !important;
  }
  
  #site-navbar .nav-item:hover:not(.active) {
    background: #f5f5f5 !important;
    color: var(--text) !important;
  }
  
  #site-navbar .nav-item:hover:not(.active) i { color: var(--orange) !important; }
  
  #site-navbar .nav-item.active {
    background: linear-gradient(135deg, #f97316, #ea6c00) !important;
    color: #fff !important;
    box-shadow: 0 4px 14px rgba(249,115,22,.35) !important;
  }
  
  #site-navbar .nav-item.active i,
  #site-navbar .nav-item.active span { color: #fff !important; }
  
  #site-header {
    position: fixed !important;
    top: 0 !important; left: 0 !important; right: 0 !important;
    width: 100% !important; height: var(--hh) !important;
    padding: 0 32px !important; padding-top: 0 !important;
    border: none !important;
    border-bottom: 1px solid var(--bord) !important;
    border-radius: 0 !important;
    background: rgba(255,255,255,.95) !important;
  }
  
  #main-content {
    margin-right: 0 !important; margin-left: 0 !important;
    padding-top: calc(var(--hh) + 16px) !important;
    padding-bottom: 100px !important;
    padding-right: 0 !important; padding-left: 0 !important;
  }
  
  .page { max-width: 100% !important; margin: 0 !important; padding: 0 !important; }
  
  .toast { bottom: 95px !important; left: 50% !important; }
  
  body { padding-bottom: 0 !important; background: #fafafa !important; }
}

/* ════════════════════════════════════════════════════════════
   DESKTOP CONSISTENCY — تناسق شامل للديسكتوب
   لا يؤثر على تصميم الموبايل (min-width: 1024px فقط)
   ════════════════════════════════════════════════════════════ */
@media (min-width: 1024px) {

  /* حاوية مركزية للصفحات الرئيسية */
  .page {
    max-width: 1280px !important;
    margin: 0 auto !important;
    padding: 0 20px !important;
  }

  /* تكبير بطاقات الكتب على الديسكتوب */
  .book-card {
    min-width: 170px;
    width: 170px;
    border-radius: 14px;
  }
  .bc-info { padding: 9px 11px 11px; }
  .bc-title { font-size: 12.5px; }
  .bc-author { font-size: 11px; }
  .bc-price { font-size: 13px; }
  .bc-price-old { font-size: 11px; }
  .bc-add-btn { font-size: 11px; padding: 7px; }
  .bc-save { width: 30px; height: 30px; font-size: 11px; top: 8px; left: 8px; }

  /* زيادة المسافات في السكشنات */
  .section { margin-bottom: 34px; }
  .section-header { padding: 0 4px; margin-bottom: 14px; gap: 11px; }
  .section-icon-wrap { width: 34px; height: 34px; font-size: 15px; border-radius: 9px; }
  .section-title { font-size: 16px; }
  .cards-scroll { padding: 0 4px; gap: 14px; scroll-padding-inline-start: 4px; }

  /* شبكات التصنيفات/المفضلة/العروض: 5 أعمدة */
  .cat-grid,
  #catResults,
  #favoritesGrid,
  .offers-grid {
    grid-template-columns: repeat(5, 1fr) !important;
    gap: 14px !important;
  }

  /* صفحة السلة: ممركزة ومحدودة */
  .cart-page {
    max-width: 880px;
    margin: 0 auto;
    padding-inline: 20px;
  }

  /* صفحة الدفع: ممركزة ومحدودة */
  .checkout-page {
    max-width: 720px !important;
    margin: 0 auto !important;
    padding-inline: 20px !important;
  }

  /* الفورمات داخل الدفع/السلة */
  .checkout-section {
    padding: 20px 22px;
    border-radius: 16px;
  }
  .checkout-section h3 { font-size: 15px; }
  .form-input { font-size: 13.5px; padding: 11px 14px; }

  /* صفحة المنتج: تخطيط محسّن */
  body:has(.product-cover-wrap) {
    padding-bottom: 0 !important;
  }
  .product-cover-wrap {
    max-width: 1100px;
    margin: 0 auto;
    border-radius: 18px;
    overflow: hidden;
  }
  .product-info {
    max-width: 1100px;
    margin: 0 auto;
    padding-inline: 24px;
  }
  .product-title { font-size: 26px; }
  .product-desc { font-size: 14px; line-height: 1.85; }

  /* شريط الأزرار السفلي في صفحة المنتج */
  body > div[style*="position:fixed"][style*="bottom:0"] {
    max-width: 780px !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    border-radius: 16px 16px 0 0 !important;
    border-right: 1px solid var(--bord) !important;
    border-left: 1px solid var(--bord) !important;
  }

  /* الشريط العلوي (التنقل للخلف في product/cart/checkout) */
  body > div[style*="position:fixed"][style*="top:0"]:not(#site-header) {
    max-width: 1280px;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%);
    padding-inline: 24px !important;
  }

  /* صفحات الحساب (login/register/forgot) — أوسع قليلاً */
  .auth-card { max-width: 420px; padding: 32px 28px; }
  .auth-card h2 { font-size: 22px; }

  /* الصفحة الفارغة — ممركزة أفقياً */
  .empty-state { max-width: 440px; margin: 0 auto; padding-top: 60px; }

  /* صفحة النجاح في الدفع */
  .success-wrap .success-icon { width: 96px; height: 96px; }

  /* ملخص الطلب: تباعد أفضل */
  .payment-option { padding: 16px 18px; }
  .payment-label { font-size: 14px; }
  .payment-sub { font-size: 12px; }
}

/* ══ DESKTOP XL (شاشات عريضة 1280px+) ══ */
@media (min-width: 1280px) {
  .book-card { min-width: 185px; width: 185px; }
  .cat-grid,
  #catResults,
  #favoritesGrid,
  .offers-grid {
    grid-template-columns: repeat(6, 1fr) !important;
  }
}