/* ============================================================
   FLUX CSS — COMPONENTS v0.2.0
   Pure CSS interactive components. Zero JavaScript.
   Free forever. Use however you want.
   
   Components included:
   ─────────────────────────────────────────────────
   Modal          <dialog> + :target fallback
   Dropdown       <details> based
   Mega Menu      nav :hover/:focus-within
   Accordion      <details> styled
   Tabs           radio :checked
   Tooltip        [data-tip] attribute
   Toast          :target + animation
   Drawer         :target + checkbox
   Popover        [popover] attribute
   Toggle Switch  checkbox styled
   Alert          .alert variants
   Progress       .progress bar
   Breadcrumb     .breadcrumb
   Pagination     .pagination
   Avatar         .avatar
   Skeleton       .skeleton loader
   Tag/Chip       .tag
   Stepper        .stepper
   Kbd            .kbd (keyboard shortcut)
   Callout        .callout
   ============================================================ */

/* ── MODAL ─────────────────────────────────────────────────── 
   Usage:
   <a href="#my-modal">Open Modal</a>
   <div class="modal" id="my-modal">
     <div class="modal-overlay" onclick=""></div>
     <div class="modal-content">
       <a href="#" class="modal-close">&times;</a>
       <div class="modal-header">Title</div>
       <div class="modal-body">Content</div>
       <div class="modal-footer">
         <a href="#" class="btn btn-outline">Cancel</a>
         <button class="btn btn-accent">Confirm</button>
       </div>
     </div>
   </div>
   ────────────────────────────────────────────────────────── */
.modal{
  position:fixed;inset:0;z-index:1000;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;
  transition:opacity calc(var(--anim-speed,1)*200ms) var(--ease),
             visibility calc(var(--anim-speed,1)*200ms) var(--ease);
}
.modal:target{opacity:1;visibility:visible}
.modal-overlay{
  position:absolute;inset:0;
  background:oklch(0% 0 0/.6);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.modal-content{
  position:relative;z-index:1;
  background:var(--surface-1);border:1px solid var(--border);
  border-radius:var(--r-card,14px);
  width:min(90vw,520px);max-height:85vh;overflow-y:auto;
  padding:var(--g6,2rem);
  transform:translateY(20px) scale(.97);
  transition:transform calc(var(--anim-speed,1)*250ms) var(--ease);
  box-shadow:0 16px 48px oklch(0% 0 0/.3);
}
.modal:target .modal-content{transform:translateY(0) scale(1)}
.modal-close{
  position:absolute;top:var(--g4,1rem);right:var(--g4,1rem);
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-md,8px);color:var(--text-muted);
  font-size:1.4em;text-decoration:none;
  transition:background calc(var(--anim-speed,1)*150ms) var(--ease);
}
.modal-close:hover{background:var(--surface-3);color:var(--text-primary)}
.modal-header{font-size:var(--t-lg,1.4rem);font-weight:700;margin-bottom:var(--g3,.75rem)}
.modal-body{color:var(--text-secondary);margin-bottom:var(--g5,1.5rem);line-height:1.6}
.modal-footer{display:flex;gap:var(--g3,.75rem);justify-content:flex-end}
.modal-sm .modal-content{width:min(90vw,380px)}
.modal-lg .modal-content{width:min(94vw,720px)}
.modal-full .modal-content{width:96vw;height:90vh}

/* ── DROPDOWN ──────────────────────────────────────────────── 
   Usage:
   <details class="dropdown">
     <summary class="btn btn-outline">Menu ▾</summary>
     <div class="dropdown-menu">
       <a class="dropdown-item" href="#">Item 1</a>
       <a class="dropdown-item" href="#">Item 2</a>
       <hr class="dropdown-divider">
       <a class="dropdown-item" href="#">Item 3</a>
     </div>
   </details>
   ────────────────────────────────────────────────────────── */
.dropdown{position:relative;display:inline-block}
.dropdown>summary{list-style:none;cursor:pointer;user-select:none}
.dropdown>summary::-webkit-details-marker{display:none}
.dropdown>summary::marker{display:none;content:''}
.dropdown-menu{
  position:absolute;top:calc(100% + 4px);left:0;z-index:100;
  min-width:200px;
  background:var(--surface-1);border:1px solid var(--border);
  border-radius:var(--r-card,14px);padding:var(--g2,.5rem);
  box-shadow:0 8px 30px oklch(0% 0 0/.2);
  opacity:0;transform:translateY(-8px);
  transition:opacity calc(var(--anim-speed,1)*150ms) var(--ease),
             transform calc(var(--anim-speed,1)*150ms) var(--ease);
}
.dropdown[open]>.dropdown-menu{opacity:1;transform:translateY(0)}
.dropdown-right>.dropdown-menu{left:auto;right:0}
.dropdown-up>.dropdown-menu{top:auto;bottom:calc(100% + 4px)}
.dropdown-item{
  display:block;padding:var(--g2,.5rem) var(--g3,.75rem);
  border-radius:var(--r-sm,4px);color:var(--text-secondary);
  font-size:var(--t-sm);
  transition:background calc(var(--anim-speed,1)*120ms) var(--ease),
             color calc(var(--anim-speed,1)*120ms) var(--ease);
}
.dropdown-item:hover{background:var(--surface-2);color:var(--text-primary)}
.dropdown-item.active{background:var(--accent-subtle);color:var(--accent)}
.dropdown-divider{border:none;border-top:1px solid var(--border-subtle);margin:var(--g2,.5rem) 0}
.dropdown-label{
  padding:var(--g2,.5rem) var(--g3,.75rem);
  font-size:var(--t-xs);font-weight:600;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:.06em;
}

/* ── MEGA MENU ─────────────────────────────────────────────── 
   Usage:
   <nav class="nav">
     <div class="wrap nav-inner">
       <div class="nav-brand">Brand</div>
       <div class="nav-links">
         <div class="mega-trigger">
           <a href="#">Products</a>
           <div class="mega-panel">
             <div class="mega-grid">
               <div class="mega-section">
                 <div class="mega-title">Category</div>
                 <a class="mega-link" href="#">Link 1</a>
                 <a class="mega-link" href="#">Link 2</a>
               </div>
             </div>
           </div>
         </div>
       </div>
     </div>
   </nav>
   ────────────────────────────────────────────────────────── */
.mega-trigger{position:relative}
.mega-panel{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(-4px);
  z-index:200;min-width:500px;
  background:var(--surface-1);border:1px solid var(--border);
  border-radius:var(--r-card,14px);padding:var(--g5,1.5rem);
  box-shadow:0 12px 40px oklch(0% 0 0/.2);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity calc(var(--anim-speed,1)*200ms) var(--ease),
             transform calc(var(--anim-speed,1)*200ms) var(--ease),
             visibility calc(var(--anim-speed,1)*200ms) var(--ease);
}
.mega-trigger:hover>.mega-panel,
.mega-trigger:focus-within>.mega-panel{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.mega-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--g5,1.5rem)}
.mega-title{font-size:var(--t-xs);font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:var(--g2,.5rem)}
.mega-link{
  display:block;padding:var(--g2,.5rem) 0;
  color:var(--text-secondary);font-size:var(--t-sm);
  transition:color calc(var(--anim-speed,1)*120ms) var(--ease);
}
.mega-link:hover{color:var(--accent)}

/* ── ACCORDION ─────────────────────────────────────────────── 
   Usage:
   <div class="accordion">
     <details class="accordion-item">
       <summary class="accordion-trigger">Question?</summary>
       <div class="accordion-body">Answer.</div>
     </details>
   </div>
   ────────────────────────────────────────────────────────── */
.accordion{border:1px solid var(--border-subtle);border-radius:var(--r-card,14px);overflow:hidden}
.accordion-item{border-bottom:1px solid var(--border-subtle)}
.accordion-item:last-child{border-bottom:none}
.accordion-trigger{
  display:flex;align-items:center;justify-content:space-between;
  padding:var(--g4,1rem) var(--g5,1.5rem);cursor:pointer;
  font-weight:600;font-size:var(--t-base);color:var(--text-primary);
  background:var(--surface-1);user-select:none;
  list-style:none;
  transition:background calc(var(--anim-speed,1)*150ms) var(--ease);
}
.accordion-trigger::-webkit-details-marker{display:none}
.accordion-trigger::marker{display:none;content:''}
.accordion-trigger::after{
  content:'▸';font-size:.9em;color:var(--text-muted);
  transition:transform calc(var(--anim-speed,1)*200ms) var(--ease);
}
.accordion-item[open]>.accordion-trigger::after{transform:rotate(90deg)}
.accordion-trigger:hover{background:var(--surface-2)}
.accordion-body{
  padding:0 var(--g5,1.5rem) var(--g5,1.5rem);
  color:var(--text-secondary);font-size:var(--t-sm);
  line-height:1.7;
}

/* ── TABS ──────────────────────────────────────────────────── 
   Usage:
   <div class="tabs">
     <input type="radio" name="tabs1" id="tab1" class="tab-input" checked>
     <label for="tab1" class="tab-label">Tab 1</label>
     <input type="radio" name="tabs1" id="tab2" class="tab-input">
     <label for="tab2" class="tab-label">Tab 2</label>
     <input type="radio" name="tabs1" id="tab3" class="tab-input">
     <label for="tab3" class="tab-label">Tab 3</label>
     <div class="tab-panels">
       <div class="tab-panel">Content 1</div>
       <div class="tab-panel">Content 2</div>
       <div class="tab-panel">Content 3</div>
     </div>
   </div>
   ────────────────────────────────────────────────────────── */
.tabs{position:relative}
.tab-input{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.tab-label{
  display:inline-block;padding:var(--g3,.75rem) var(--g5,1.5rem);
  cursor:pointer;font-weight:500;font-size:var(--t-sm);
  color:var(--text-muted);border-bottom:2px solid transparent;
  transition:color calc(var(--anim-speed,1)*150ms) var(--ease),
             border-color calc(var(--anim-speed,1)*150ms) var(--ease);
}
.tab-label:hover{color:var(--text-primary)}
.tab-input:checked+.tab-label{color:var(--accent);border-bottom-color:var(--accent)}
.tab-panels{
  border-top:1px solid var(--border-subtle);
  padding-top:var(--g5,1.5rem);
}
.tab-panel{display:none}

/* Show the correct panel based on which radio is checked */
.tab-input:nth-of-type(1):checked~.tab-panels>.tab-panel:nth-child(1),
.tab-input:nth-of-type(2):checked~.tab-panels>.tab-panel:nth-child(2),
.tab-input:nth-of-type(3):checked~.tab-panels>.tab-panel:nth-child(3),
.tab-input:nth-of-type(4):checked~.tab-panels>.tab-panel:nth-child(4),
.tab-input:nth-of-type(5):checked~.tab-panels>.tab-panel:nth-child(5),
.tab-input:nth-of-type(6):checked~.tab-panels>.tab-panel:nth-child(6){
  display:block;
}

/* Tab variants */
.tabs-pill .tab-label{border-bottom:none;border-radius:var(--r-full,9999px);margin:0 var(--g1,.25rem)}
.tabs-pill .tab-input:checked+.tab-label{background:var(--accent-subtle);color:var(--accent)}
.tabs-pill .tab-panels{border-top:none}
.tabs-boxed .tab-label{border-bottom:none;border-radius:var(--r-md,8px) var(--r-md,8px) 0 0}
.tabs-boxed .tab-input:checked+.tab-label{background:var(--surface-1);color:var(--text-primary)}

/* ── TOOLTIP ───────────────────────────────────────────────── 
   Usage:
   <span class="tip" data-tip="Tooltip text">Hover me</span>
   <span class="tip tip-bottom" data-tip="Below">Hover me</span>
   ────────────────────────────────────────────────────────── */
.tip{position:relative;cursor:help}
.tip::after{
  content:attr(data-tip);
  position:absolute;bottom:calc(100% + 8px);left:50%;
  transform:translateX(-50%) translateY(4px);
  padding:.35em .7em;border-radius:var(--r-sm,4px);
  background:var(--surface-3);color:var(--text-primary);
  font-size:var(--t-xs);font-weight:500;white-space:nowrap;
  pointer-events:none;opacity:0;
  box-shadow:0 4px 12px oklch(0% 0 0/.15);
  transition:opacity calc(var(--anim-speed,1)*150ms) var(--ease),
             transform calc(var(--anim-speed,1)*150ms) var(--ease);
  z-index:50;
}
.tip:hover::after{opacity:1;transform:translateX(-50%) translateY(0)}
.tip-bottom::after{bottom:auto;top:calc(100% + 8px);transform:translateX(-50%) translateY(-4px)}
.tip-bottom:hover::after{transform:translateX(-50%) translateY(0)}
.tip-left::after{bottom:auto;top:50%;left:auto;right:calc(100% + 8px);transform:translateY(-50%) translateX(4px)}
.tip-left:hover::after{transform:translateY(-50%) translateX(0)}
.tip-right::after{bottom:auto;top:50%;left:calc(100% + 8px);transform:translateY(-50%) translateX(-4px)}
.tip-right:hover::after{transform:translateY(-50%) translateX(0)}

/* ── TOAST ─────────────────────────────────────────────────── 
   Usage:
   <a href="#toast1">Show toast</a>
   <div class="toast" id="toast1">
     <a href="#" class="toast-close">&times;</a>
     Message sent successfully.
   </div>
   ────────────────────────────────────────────────────────── */
.toast{
  position:fixed;bottom:var(--g5,1.5rem);right:var(--g5,1.5rem);z-index:1100;
  padding:var(--g3,.75rem) var(--g5,1.5rem);
  background:var(--surface-2);color:var(--text-primary);
  border:1px solid var(--border);border-radius:var(--r-lg,14px);
  font-size:var(--t-sm);font-weight:500;
  box-shadow:0 8px 30px oklch(0% 0 0/.2);
  display:flex;align-items:center;gap:var(--g3,.75rem);
  transform:translateY(120%);opacity:0;
  transition:transform calc(var(--anim-speed,1)*300ms) var(--ease),
             opacity calc(var(--anim-speed,1)*300ms) var(--ease);
}
.toast:target{transform:translateY(0);opacity:1}
.toast-close{
  color:var(--text-muted);text-decoration:none;font-size:1.2em;
  margin-left:var(--g2,.5rem);
}
.toast-close:hover{color:var(--text-primary)}
.toast-success{border-color:oklch(55% 0.16 150);background:oklch(18% 0.04 150)}
.toast-error{border-color:oklch(55% 0.16 25);background:oklch(18% 0.04 25)}
.toast-warning{border-color:oklch(55% 0.16 80);background:oklch(18% 0.04 80)}
.toast-top{bottom:auto;top:var(--g5,1.5rem)}
.toast-left{right:auto;left:var(--g5,1.5rem)}
.toast-center{right:auto;left:50%;margin-left:-150px;width:300px;justify-content:center}

/* ── DRAWER ────────────────────────────────────────────────── 
   Usage:
   <a href="#drawer1">Open Drawer</a>
   <div class="drawer" id="drawer1">
     <div class="drawer-overlay"></div>
     <div class="drawer-content">
       <a href="#" class="drawer-close">&times;</a>
       Drawer content here
     </div>
   </div>
   ────────────────────────────────────────────────────────── */
.drawer{
  position:fixed;inset:0;z-index:900;
  visibility:hidden;
  transition:visibility calc(var(--anim-speed,1)*250ms) var(--ease);
}
.drawer:target{visibility:visible}
.drawer-overlay{
  position:absolute;inset:0;
  background:oklch(0% 0 0/.5);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  opacity:0;
  transition:opacity calc(var(--anim-speed,1)*250ms) var(--ease);
}
.drawer:target .drawer-overlay{opacity:1}
.drawer-content{
  position:absolute;top:0;left:0;bottom:0;
  width:min(85vw,360px);
  background:var(--surface-1);border-right:1px solid var(--border);
  padding:var(--g6,2rem);overflow-y:auto;
  transform:translateX(-100%);
  transition:transform calc(var(--anim-speed,1)*300ms) var(--ease);
}
.drawer:target .drawer-content{transform:translateX(0)}
.drawer-right .drawer-content{left:auto;right:0;border-right:none;border-left:1px solid var(--border);transform:translateX(100%)}
.drawer-right:target .drawer-content{transform:translateX(0)}
.drawer-close{
  position:absolute;top:var(--g4,1rem);right:var(--g4,1rem);
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-md,8px);color:var(--text-muted);
  font-size:1.4em;text-decoration:none;
  transition:background calc(var(--anim-speed,1)*150ms) var(--ease);
}
.drawer-close:hover{background:var(--surface-3);color:var(--text-primary)}

/* ── POPOVER ───────────────────────────────────────────────── 
   Usage (native popover attribute):
   <button popovertarget="pop1" class="btn btn-outline">Info</button>
   <div popover id="pop1" class="pop">
     Popover content here
   </div>
   ────────────────────────────────────────────────────────── */
.pop{
  background:var(--surface-1);border:1px solid var(--border);
  border-radius:var(--r-card,14px);padding:var(--g5,1.5rem);
  color:var(--text-primary);font-size:var(--t-sm);
  box-shadow:0 8px 30px oklch(0% 0 0/.2);
  max-width:360px;
}
.pop::backdrop{background:oklch(0% 0 0/.3)}

/* ── TOGGLE SWITCH ─────────────────────────────────────────── 
   Usage:
   <label class="switch">
     <input type="checkbox">
     <span class="switch-track"></span>
     <span class="switch-label">Dark mode</span>
   </label>
   ────────────────────────────────────────────────────────── */
.switch{display:inline-flex;align-items:center;gap:var(--g3,.75rem);cursor:pointer;user-select:none}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch-track{
  position:relative;width:44px;height:24px;
  background:var(--surface-4);border-radius:12px;
  transition:background calc(var(--anim-speed,1)*200ms) var(--ease);
}
.switch-track::after{
  content:'';position:absolute;top:3px;left:3px;
  width:18px;height:18px;border-radius:50%;
  background:var(--text-primary);
  transition:transform calc(var(--anim-speed,1)*200ms) var(--ease);
}
.switch input:checked+.switch-track{background:var(--accent)}
.switch input:checked+.switch-track::after{transform:translateX(20px);background:var(--accent-text,oklch(10% 0 0))}
.switch-label{font-size:var(--t-sm);color:var(--text-secondary)}
.switch-sm .switch-track{width:36px;height:20px}
.switch-sm .switch-track::after{width:14px;height:14px}
.switch-sm input:checked+.switch-track::after{transform:translateX(16px)}

/* ── ALERT ─────────────────────────────────────────────────── 
   Usage:
   <div class="alert">Default message</div>
   <div class="alert alert-success">Success!</div>
   <div class="alert alert-error">Error!</div>
   ────────────────────────────────────────────────────────── */
.alert{
  padding:var(--g4,1rem) var(--g5,1.5rem);
  border-radius:var(--r-md,8px);
  font-size:var(--t-sm);font-weight:500;
  border:1px solid var(--border);
  background:var(--surface-2);color:var(--text-primary);
}
.alert-success{border-color:oklch(55% 0.12 150);background:oklch(18% 0.04 150);color:oklch(75% 0.14 150)}
.alert-error{border-color:oklch(55% 0.12 25);background:oklch(18% 0.04 25);color:oklch(75% 0.14 25)}
.alert-warning{border-color:oklch(55% 0.12 80);background:oklch(18% 0.04 80);color:oklch(75% 0.14 80)}
.alert-info{border-color:oklch(55% 0.12 220);background:oklch(18% 0.04 220);color:oklch(75% 0.14 220)}

/* Light theme alert overrides */
[data-theme="light"] .alert-success{background:oklch(95% 0.03 150);color:oklch(35% 0.12 150)}
[data-theme="light"] .alert-error{background:oklch(95% 0.03 25);color:oklch(40% 0.12 25)}
[data-theme="light"] .alert-warning{background:oklch(95% 0.03 80);color:oklch(40% 0.12 80)}
[data-theme="light"] .alert-info{background:oklch(95% 0.03 220);color:oklch(35% 0.12 220)}

/* ── PROGRESS ──────────────────────────────────────────────── 
   Usage:
   <div class="progress">
     <div class="progress-bar" style="width:65%"></div>
   </div>
   ────────────────────────────────────────────────────────── */
.progress{
  width:100%;height:8px;background:var(--surface-3);
  border-radius:var(--r-full,9999px);overflow:hidden;
}
.progress-bar{
  height:100%;background:var(--accent);border-radius:var(--r-full,9999px);
  transition:width calc(var(--anim-speed,1)*400ms) var(--ease);
}
.progress-sm{height:4px}
.progress-lg{height:14px}
.progress-striped .progress-bar{
  background-image:linear-gradient(
    45deg,
    oklch(100% 0 0/.15) 25%,transparent 25%,
    transparent 50%,oklch(100% 0 0/.15) 50%,
    oklch(100% 0 0/.15) 75%,transparent 75%
  );
  background-size:20px 20px;
}
.progress-animated .progress-bar{animation:flux-progress-stripe 1s linear infinite}
@keyframes flux-progress-stripe{0%{background-position:20px 0}100%{background-position:0 0}}

/* ── BREADCRUMB ────────────────────────────────────────────── 
   Usage:
   <nav class="breadcrumb">
     <a href="#">Home</a>
     <a href="#">Products</a>
     <span>Current Page</span>
   </nav>
   ────────────────────────────────────────────────────────── */
.breadcrumb{display:flex;align-items:center;gap:var(--g2,.5rem);font-size:var(--t-sm)}
.breadcrumb>a{color:var(--text-muted);transition:color calc(var(--anim-speed,1)*150ms) var(--ease)}
.breadcrumb>a:hover{color:var(--accent)}
.breadcrumb>a::after{content:'›';margin-left:var(--g2,.5rem);color:var(--text-muted)}
.breadcrumb>span{color:var(--text-primary);font-weight:500}

/* ── PAGINATION ────────────────────────────────────────────── 
   Usage:
   <nav class="pagination">
     <a href="#" class="page-link">&laquo;</a>
     <a href="#" class="page-link">1</a>
     <a href="#" class="page-link active">2</a>
     <a href="#" class="page-link">3</a>
     <a href="#" class="page-link">&raquo;</a>
   </nav>
   ────────────────────────────────────────────────────────── */
.pagination{display:flex;align-items:center;gap:var(--g1,.25rem)}
.page-link{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:36px;height:36px;padding:0 var(--g2,.5rem);
  border-radius:var(--r-md,8px);font-size:var(--t-sm);font-weight:500;
  color:var(--text-secondary);
  transition:all calc(var(--anim-speed,1)*150ms) var(--ease);
}
.page-link:hover{background:var(--surface-2);color:var(--text-primary)}
.page-link.active{background:var(--accent);color:var(--accent-text,oklch(10% 0 0));font-weight:600}
.page-link.disabled{opacity:.4;pointer-events:none}

/* ── AVATAR ────────────────────────────────────────────────── 
   Usage:
   <div class="avatar">JG</div>
   <img class="avatar avatar-lg" src="photo.jpg" alt="">
   ────────────────────────────────────────────────────────── */
.avatar{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:var(--accent-subtle);color:var(--accent);
  font-weight:600;font-size:var(--t-sm);
  object-fit:cover;overflow:hidden;flex-shrink:0;
}
.avatar-xs{width:24px;height:24px;font-size:var(--t-xs)}
.avatar-sm{width:32px;height:32px;font-size:var(--t-xs)}
.avatar-lg{width:56px;height:56px;font-size:var(--t-md)}
.avatar-xl{width:72px;height:72px;font-size:var(--t-lg)}
.avatar-square{border-radius:var(--r-md,8px)}
.avatar-group{display:flex}
.avatar-group .avatar{margin-left:-8px;border:2px solid var(--surface-0)}
.avatar-group .avatar:first-child{margin-left:0}

/* ── SKELETON LOADER ───────────────────────────────────────── 
   Usage:
   <div class="skeleton skeleton-text"></div>
   <div class="skeleton skeleton-heading"></div>
   <div class="skeleton skeleton-avatar"></div>
   <div class="skeleton skeleton-card"></div>
   ────────────────────────────────────────────────────────── */
.skeleton{
  background:linear-gradient(90deg,var(--surface-2) 25%,var(--surface-3) 50%,var(--surface-2) 75%);
  background-size:200% 100%;
  border-radius:var(--r-sm,4px);
  animation:flux-skeleton calc(var(--anim-speed,1)*1.5s) ease infinite;
}
@keyframes flux-skeleton{0%{background-position:200% 0}100%{background-position:-200% 0}}
.skeleton-text{height:1em;width:100%;margin-bottom:var(--g2,.5rem)}
.skeleton-text:last-child{width:70%}
.skeleton-heading{height:1.5em;width:60%;margin-bottom:var(--g3,.75rem)}
.skeleton-avatar{width:40px;height:40px;border-radius:50%}
.skeleton-card{height:200px;border-radius:var(--r-card,14px)}
.skeleton-btn{height:38px;width:120px;border-radius:var(--r-md,8px)}

/* ── TAG / CHIP ────────────────────────────────────────────── 
   Usage:
   <span class="tag">Default</span>
   <span class="tag tag-accent">Accent</span>
   <span class="tag tag-outline">Outline</span>
   ────────────────────────────────────────────────────────── */
.tag{
  display:inline-flex;align-items:center;gap:var(--g1,.25rem);
  padding:.25em .6em;border-radius:var(--r-sm,4px);
  font-size:var(--t-xs);font-weight:500;
  background:var(--surface-3);color:var(--text-secondary);
}
.tag-accent{background:var(--accent-subtle);color:var(--accent)}
.tag-outline{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}
.tag-success{background:oklch(22% 0.06 150);color:oklch(72% 0.14 150)}
.tag-error{background:oklch(22% 0.06 25);color:oklch(72% 0.14 25)}
.tag-warning{background:oklch(22% 0.06 80);color:oklch(72% 0.14 80)}
.tag-lg{padding:.35em .8em;font-size:var(--t-sm)}
.tag-pill{border-radius:var(--r-full,9999px)}

[data-theme="light"] .tag-success{background:oklch(92% 0.04 150);color:oklch(38% 0.12 150)}
[data-theme="light"] .tag-error{background:oklch(92% 0.04 25);color:oklch(40% 0.12 25)}
[data-theme="light"] .tag-warning{background:oklch(92% 0.04 80);color:oklch(40% 0.12 80)}

/* ── STEPPER ───────────────────────────────────────────────── 
   Usage:
   <div class="stepper">
     <div class="step completed"><div class="step-dot"></div><div class="step-label">Done</div></div>
     <div class="step active"><div class="step-dot"></div><div class="step-label">Current</div></div>
     <div class="step"><div class="step-dot"></div><div class="step-label">Upcoming</div></div>
   </div>
   ────────────────────────────────────────────────────────── */
.stepper{display:flex;align-items:flex-start;gap:0}
.step{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--g2,.5rem);position:relative}
.step:not(:last-child)::after{
  content:'';position:absolute;top:12px;left:calc(50% + 16px);right:calc(-50% + 16px);
  height:2px;background:var(--border-subtle);
}
.step.completed:not(:last-child)::after{background:var(--accent)}
.step-dot{
  width:24px;height:24px;border-radius:50%;
  border:2px solid var(--border);background:var(--surface-0);
  position:relative;z-index:1;
  transition:all calc(var(--anim-speed,1)*200ms) var(--ease);
}
.step.active .step-dot{border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 4px var(--accent-subtle)}
.step.completed .step-dot{border-color:var(--accent);background:var(--accent)}
.step-label{font-size:var(--t-xs);color:var(--text-muted);text-align:center}
.step.active .step-label{color:var(--accent);font-weight:600}
.step.completed .step-label{color:var(--text-secondary)}

/* ── KBD (Keyboard Shortcut) ──────────────────────────────── 
   Usage:
   <kbd class="kbd">Ctrl</kbd> + <kbd class="kbd">S</kbd>
   ────────────────────────────────────────────────────────── */
.kbd{
  display:inline-block;padding:.15em .45em;
  font-family:var(--ff-mono);font-size:var(--t-xs);font-weight:500;
  background:var(--surface-2);color:var(--text-secondary);
  border:1px solid var(--border);border-bottom-width:2px;
  border-radius:var(--r-sm,4px);
}

/* ── CALLOUT ───────────────────────────────────────────────── 
   Usage:
   <div class="callout">
     <div class="callout-title">Note</div>
     <div class="callout-body">Important information here.</div>
   </div>
   ────────────────────────────────────────────────────────── */
.callout{
  padding:var(--g4,1rem) var(--g5,1.5rem);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-md,8px) var(--r-md,8px) 0;
  background:var(--accent-subtle);
}
.callout-title{font-weight:600;font-size:var(--t-sm);color:var(--accent);margin-bottom:var(--g2,.5rem)}
.callout-body{font-size:var(--t-sm);color:var(--text-secondary);line-height:1.6}
.callout-success{border-color:oklch(55% 0.14 150);background:oklch(18% 0.04 150)}
.callout-success .callout-title{color:oklch(72% 0.14 150)}
.callout-warning{border-color:oklch(55% 0.14 80);background:oklch(18% 0.04 80)}
.callout-warning .callout-title{color:oklch(72% 0.14 80)}
.callout-error{border-color:oklch(55% 0.14 25);background:oklch(18% 0.04 25)}
.callout-error .callout-title{color:oklch(72% 0.14 25)}

[data-theme="light"] .callout{background:var(--accent-subtle)}
[data-theme="light"] .callout-success{background:oklch(95% 0.03 150)}
[data-theme="light"] .callout-warning{background:oklch(95% 0.03 80)}
[data-theme="light"] .callout-error{background:oklch(95% 0.03 25)}

/* ── DIVIDER VARIANTS ──────────────────────────────────────── */
.divider-thick{border-top-width:3px}
.divider-accent{border-top-color:var(--accent)}
.divider-dashed{border-top-style:dashed}
.divider-dotted{border-top-style:dotted}
.divider-label{
  display:flex;align-items:center;gap:var(--g4,1rem);
  border:none;margin:var(--g6,2rem) 0;
  color:var(--text-muted);font-size:var(--t-xs);
  text-transform:uppercase;letter-spacing:.08em;font-weight:600;
}
.divider-label::before,.divider-label::after{
  content:'';flex:1;height:1px;background:var(--border-subtle);
}