/* Bookshop — Stripe-Inspired Design System */
:root{
  --white:#ffffff;
  --gray50:#f6f9fc;
  --gray100:#eef2f6;
  --gray200:#e3e8ee;
  --gray300:#cdd5df;
  --gray400:#99a1af;
  --gray500:#697386;
  --gray600:#4f566b;
  --gray700:#3c4257;
  --gray800:#2a2f45;
  --gray900:#1a1f36;
  --accent:#635bff;
  --accent-hover:#5851ea;
  --green:#09825d;
  --red:#cd3d64;
  --r:8px;
  --r-lg:12px;
  --r-xl:16px;
  --shadow-card:0 2px 5px rgba(0,0,0,0.05),0 1px 2px rgba(0,0,0,0.04);
  --shadow-card-hover:0 7px 14px rgba(50,50,93,0.08),0 3px 6px rgba(0,0,0,0.07);
  --shadow-dialog:0 6px 12px -2px rgba(50,50,93,0.2),0 3px 7px -3px rgba(0,0,0,0.1);
  --radius-input:6px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --max-w:1040px;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--gray50);
  color:var(--gray900);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover)}
img{max-width:100%;display:block}
input,select,textarea,button{font-family:inherit}

/* ── Navigation ── */
.nav{
  background:var(--white);
  border-bottom:1px solid var(--gray200);
  height:56px;
  display:flex;
  align-items:center;
}
.nav-inner{
  max-width:var(--max-w);
  width:100%;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav-brand{font-weight:700;font-size:1.05rem;color:var(--gray900);letter-spacing:-0.01em}
.nav-links{display:flex;align-items:center;gap:16px}
.nav-links a{font-size:0.9rem;font-weight:500;color:var(--gray600)}
.nav-links a:hover{color:var(--gray900)}

/* ── Page ── */
.page{max-width:var(--max-w);margin:0 auto;padding:40px 24px 80px}

/* ── Hero ── */
.hero{padding:48px 0 24px;text-align:left}
.hero h1{font-size:2.25rem;font-weight:700;letter-spacing:-0.025em;line-height:1.2;margin-bottom:8px;color:var(--gray900)}
.hero p{font-size:1.1rem;color:var(--gray500);max-width:540px;line-height:1.5}

/* ── Grid ── */
.books-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:24px;
}
@media(max-width:560px){.books-grid{grid-template-columns:repeat(2,1fr);gap:16px}}

/* ── Book Card ── */
.book-card{
  background:var(--white);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:box-shadow .2s,transform .2s;
  cursor:pointer;
}
.book-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}
.book-card-cover{width:100%;aspect-ratio:3/4;object-fit:cover;background:var(--gray100)}
.book-card-cover-placeholder{width:100%;aspect-ratio:3/4;background:linear-gradient(135deg,var(--gray100),var(--gray200));display:flex;align-items:center;justify-content:center;font-size:3.5rem}
.book-card-body{padding:14px 16px 16px}
.book-card-body h3{font-size:0.95rem;font-weight:600;line-height:1.3;margin-bottom:2px;color:var(--gray900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.book-card-author{font-size:0.8rem;color:var(--gray500);margin-bottom:6px}
.book-card-price{font-weight:600;font-size:0.95rem;color:var(--gray900)}

/* ── Product Page (Stripe-style) ── */
.product-page{max-width:var(--max-w);margin:0 auto;padding:40px 24px 80px}
.product-layout{display:flex;gap:48px;align-items:flex-start}
.product-image{width:380px;flex-shrink:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.product-image img{width:100%}
.product-details{flex:1;padding-top:8px}
.product-details h1{font-size:2rem;font-weight:700;letter-spacing:-0.02em;line-height:1.2;margin-bottom:8px}
.product-details .byline{font-size:1rem;color:var(--gray500);margin-bottom:20px}
.product-details .price{font-size:1.5rem;font-weight:600;margin-bottom:16px;color:var(--gray900)}
.product-details .desc{font-size:0.95rem;color:var(--gray600);line-height:1.65;margin-bottom:24px;max-width:480px}
.product-actions{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:780px){.product-layout{flex-direction:column;align-items:center;text-align:center;gap:24px}.product-image{width:240px}.product-details{text-align:center}.product-actions{justify-content:center;flex-direction:column;align-items:center}}

/* ── Author Page ── */
.author-page{max-width:var(--max-w);margin:0 auto;padding:40px 24px 80px}
.author-header{display:flex;gap:32px;align-items:center;margin-bottom:32px}
.author-avatar{width:100px;height:100px;border-radius:50%;overflow:hidden;flex-shrink:0;background:var(--gray100);box-shadow:var(--shadow-card)}
.author-avatar img{width:100%;height:100%;object-fit:cover}
.author-info h1{font-size:1.75rem;font-weight:700;margin-bottom:4px}
.author-info p{font-size:0.95rem;color:var(--gray600);max-width:520px;line-height:1.6}
@media(max-width:560px){.author-header{flex-direction:column;text-align:center}}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--radius-input);font-weight:500;
  font-size:0.9rem;border:none;cursor:pointer;transition:all .15s;
  white-space:nowrap;line-height:1.4;
}
.btn:active{transform:scale(0.98)}
.btn-primary{background:var(--accent);color:var(--white);box-shadow:0 1px 1px rgba(0,0,0,0.06),0 0 1px rgba(99,91,255,0.3)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{background:var(--gray900);color:var(--white)}
.btn-secondary:hover{background:var(--gray800)}
.btn-outline{border:1px solid var(--gray300);background:var(--white);color:var(--gray700)}
.btn-outline:hover{background:var(--gray50);border-color:var(--gray400)}
.btn-lg{padding:12px 24px;font-size:0.95rem}
.btn-block{width:100%}
.btn-sm{padding:6px 12px;font-size:0.8rem}

/* ── Forms (Stripe-style) ── */
.field{margin-bottom:16px}
.field-label{display:block;font-size:0.8rem;font-weight:500;color:var(--gray700);margin-bottom:4px}
.field-input{
  width:100%;padding:9px 12px;border:1px solid var(--gray200);border-radius:var(--radius-input);
  font-size:0.9rem;color:var(--gray900);background:var(--white);
  transition:border-color .15s,box-shadow .15s;
  box-shadow:0 1px 1px rgba(0,0,0,0.02);
}
.field-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(99,91,255,0.12)}
.field-input::placeholder{color:var(--gray400)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:500px){.field-row{grid-template-columns:1fr}}

/* ── Badge ── */
.badge{
  display:inline-block;padding:2px 8px;border-radius:4px;
  font-size:0.7rem;font-weight:600;text-transform:uppercase;letter-spacing:0.03em;
}
.badge-published,.badge-paid{background:#e8faf0;color:var(--green)}
.badge-draft,.badge-pending{background:#fff8ee;color:#bb7900}
.badge-shipped{background:#eef0ff;color:var(--accent)}

/* ── Toast ── */
.toast-container{
  position:fixed;bottom:24px;right:24px;z-index:9999;
  display:flex;flex-direction:column;gap:8px;pointer-events:none;
}
.toast{
  padding:10px 18px;border-radius:var(--radius-input);font-size:0.85rem;font-weight:500;
  box-shadow:var(--shadow-dialog);animation:toastIn .3s ease;
  pointer-events:auto;background:var(--gray900);color:var(--white);
}
.toast-exit{animation:toastOut .2s ease forwards}
@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@keyframes toastOut{to{opacity:0;transform:translateY(8px)}}

/* ── Modal (Stripe-style) ── */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,0.35);z-index:200;
  display:flex;align-items:flex-start;justify-content:center;
  padding-top:80px;
}
.modal{
  background:var(--white);border-radius:var(--r-lg);box-shadow:var(--shadow-dialog);
  padding:28px;width:100%;max-width:480px;animation:modalIn .2s ease;
}
@keyframes modalIn{from{opacity:0;transform:scale(0.97)}to{opacity:1;transform:scale(1)}}

/* ── Cart ── */
.cart-btn{position:relative;padding:4px;font-size:1.15rem;border:none;background:none;cursor:pointer;color:var(--gray700)}
.cart-count{
  position:absolute;top:-4px;right:-6px;background:var(--accent);color:var(--white);
  border-radius:50%;width:18px;height:18px;font-size:0.6rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.cart-count:empty{display:none}
.cart-drawer{
  position:fixed;top:0;right:0;width:380px;max-width:90vw;height:100vh;
  background:var(--white);z-index:201;box-shadow:-4px 0 20px rgba(0,0,0,0.08);
  transform:translateX(100%);transition:transform .25s ease;
  display:flex;flex-direction:column;
}
.cart-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.25);z-index:200}

/* ── Admin ── */
.admin{
  display:flex;min-height:calc(100vh - 56px);
}
.admin-sidebar{
  width:220px;flex-shrink:0;background:var(--white);border-right:1px solid var(--gray200);
  padding:16px 12px;
}
.admin-sidebar a{
  display:block;padding:8px 14px;border-radius:var(--radius-input);font-size:0.85rem;
  font-weight:500;color:var(--gray600);transition:all .1s;
}
.admin-sidebar a:hover{background:var(--gray50);color:var(--gray900)}
.admin-sidebar a.active{background:var(--gray50);color:var(--gray900);font-weight:600}
.admin-main{flex:1;padding:28px 36px;overflow-x:auto;background:var(--gray50)}
@media(max-width:760px){.admin-sidebar{display:none}.admin-main{padding:20px}}

/* ── Stats ── */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}
.stat-box{background:var(--white);border-radius:var(--r);box-shadow:var(--shadow-card);padding:18px}
.stat-num{font-size:1.75rem;font-weight:700;color:var(--gray900);line-height:1}
.stat-label{font-size:0.75rem;color:var(--gray500);margin-top:4px;font-weight:500;text-transform:uppercase;letter-spacing:0.04em}
@media(max-width:600px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ── Table ── */
.table-wrap{background:var(--white);border-radius:var(--r);box-shadow:var(--shadow-card);overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:0.85rem}
thead th{font-size:0.75rem;font-weight:600;color:var(--gray500);text-transform:uppercase;letter-spacing:0.04em;padding:10px 14px;text-align:left;background:var(--gray50);border-bottom:1px solid var(--gray200)}
tbody td{padding:12px 14px;border-bottom:1px solid var(--gray100);color:var(--gray800)}
tbody tr:hover td{background:var(--gray50)}
tbody tr:last-child td{border-bottom:none}

/* ── Card ── */
.panel{background:var(--white);border-radius:var(--r);box-shadow:var(--shadow-card);padding:20px;margin-bottom:20px}
.panel h3{font-size:0.95rem;font-weight:600;margin-bottom:12px;color:var(--gray900)}

/* ── Timeline ── */
.timeline{position:relative;padding-left:24px}
.timeline::before{content:'';position:absolute;left:8px;top:6px;bottom:6px;width:1.5px;background:var(--gray200)}
.tl-step{position:relative;margin-bottom:14px}
.tl-step::before{content:'';position:absolute;left:-18px;top:5px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.tl-step.pending::before{background:var(--gray300)}
.tl-label{font-size:0.7rem;color:var(--gray500);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:1px}
.tl-detail{font-weight:500;font-size:0.9rem}

/* ── Empty State ── */
.empty-state{padding:48px 20px;text-align:center}
.empty-state-icon{font-size:2.5rem;margin-bottom:12px;opacity:0.35}
.empty-state h3{font-size:1rem;font-weight:600;margin-bottom:4px;color:var(--gray700)}
.empty-state p{font-size:0.85rem;color:var(--gray500);max-width:360px;margin:0 auto}

/* ── Image Upload ── */
.upload-zone{
  width:140px;height:190px;margin:0 auto 16px;border:2px dashed var(--gray200);
  border-radius:var(--r);display:flex;align-items:center;justify-content:center;
  cursor:pointer;overflow:hidden;position:relative;transition:border-color .2s;
}
.upload-zone:hover{border-color:var(--accent)}
.upload-zone img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.upload-zone .upload-placeholder{font-size:2.5rem;color:var(--gray300)}

/* ── Shipping Select ── */
.ship-option{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 14px;border:1px solid var(--gray200);border-radius:var(--r);
  margin-bottom:8px;cursor:pointer;transition:all .15s;
}
.ship-option:hover{border-color:var(--gray300)}
.ship-option.selected{border-color:var(--accent);background:rgba(99,91,255,0.04)}

/* ── Utilities ── */
.text-center{text-align:center}.text-left{text-align:left}
.text-xs{font-size:0.75rem}.text-sm{font-size:0.85rem}
.text-muted{color:var(--gray500)}.text-secondary{color:var(--gray600)}
.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}
.flex-center{display:flex;align-items:center;justify-content:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.mb-4{margin-bottom:4px}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}
.mt-4{margin-top:4px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}
.w-full{width:100%}
.fw-500{font-weight:500}.fw-600{font-weight:600}.fw-700{font-weight:700}
.mono{font-family:'SF Mono','Fira Code',monospace;font-size:0.85em}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}