/* ============================================================
   SurveySeed — base design system
   Quiet, document-like UI: white ground, hairline borders, one
   accent (seed green). Inspired by Tally's density and calm.
   ============================================================ */
:root{
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bg:#ffffff;--bg-2:#f8f8f6;--bg-3:#f0f0ee;--bg-hover:#f3f3f1;
  --text:#1b1b1a;--text-2:#55554f;--text-3:#8b8a85;--text-4:#b8b7b2;
  --border:#e8e8e5;--border-2:#d8d8d4;
  --accent:#1f7a4d;--accent-hover:#186340;--accent-soft:#e7f4ec;--accent-text:#1a6b43;
  --amber:#a86a12;--amber-soft:#fbf1dc;--red:#c43d3d;--red-soft:#fbe9e9;--blue:#2f6fd6;--blue-soft:#e9f0fc;
  --radius:8px;--radius-sm:6px;--radius-lg:12px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 4px 18px rgba(0,0,0,.07);--shadow-lg:0 20px 60px rgba(0,0,0,.14);
  --sidebar-w:232px;
  /* legacy aliases used by inline styles in older JS */
  --ink:var(--text);--ink2:var(--text-2);--ink3:var(--text-3);--white:var(--bg);--app-bg:var(--bg-2);
  --green-accent:var(--accent);--green-mid:var(--accent-hover);--green-dark:#14331f;--green-bright:#3fa16e;
  --cream:#ffffff;--cream-light:#ffffff;--amber-light:#e2b25d;--sans:var(--font);--serif:var(--font);
}
body.dark{
  --bg:#191918;--bg-2:#1e1e1d;--bg-3:#262625;--bg-hover:#232322;
  --text:#ececea;--text-2:#b6b5b0;--text-3:#86857f;--text-4:#5d5c58;
  --border:#2c2c2a;--border-2:#3b3b38;
  --accent:#3fa16e;--accent-hover:#52b27f;--accent-soft:#1b2d23;--accent-text:#6fcb97;
  --amber:#d9a04a;--amber-soft:#2e2517;--red:#e06565;--red-soft:#321c1c;--blue:#6e9ef0;--blue-soft:#1b2436;
  --shadow:0 4px 18px rgba(0,0,0,.4);--shadow-lg:0 20px 60px rgba(0,0,0,.6);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:14px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,p,ul,ol{margin:0}
h1{font-size:26px;font-weight:600;letter-spacing:-.02em;line-height:1.25}
h2{font-size:20px;font-weight:600;letter-spacing:-.01em;line-height:1.3}
h3{font-size:16px;font-weight:600;line-height:1.35}
a{color:var(--accent-text);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
code{font-family:var(--mono);font-size:12px;background:var(--bg-3);padding:1px 5px;border-radius:4px}
::selection{background:var(--accent-soft)}
[hidden]{display:none!important}

/* ---------- buttons ---------- */
.btn,.btn-primary,.btn-green,.btn-outline,.btn-secondary,.btn-ghost,.nav-pill,.land-cta-nav{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:34px;padding:0 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;line-height:1;border:1px solid transparent;cursor:pointer;white-space:nowrap;text-decoration:none;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}
.btn-primary,.btn-green,.nav-pill,.land-cta-nav{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover,.btn-green:hover,.nav-pill:hover,.land-cta-nav:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;text-decoration:none}
.btn-secondary,.btn-outline{background:var(--bg);color:var(--text);border-color:var(--border-2)}
.btn-secondary:hover,.btn-outline:hover{background:var(--bg-hover);border-color:var(--text-4);text-decoration:none}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}
.btn-danger{color:var(--red)}
.btn-danger:hover{background:var(--red-soft);border-color:var(--red)}
.btn-sm{height:28px;padding:0 10px;font-size:12px}
.btn-lg{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn:disabled,.btn-primary:disabled,.btn-green:disabled,.btn-outline:disabled,.btn-secondary:disabled,.btn-ghost:disabled{opacity:.5;cursor:default}
.btn-icon{width:30px;height:30px;padding:0;border-radius:var(--radius-sm);border:1px solid var(--border-2);background:var(--bg);color:var(--text-2);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:14px;line-height:1;transition:all .15s}
.btn-icon:hover:not(:disabled){border-color:var(--text-4);color:var(--text);background:var(--bg-hover)}
.btn-icon:disabled{opacity:.35;cursor:default}
.btn-icon.ghost{border-color:transparent;background:transparent}
.btn-icon.ghost:hover:not(:disabled){background:var(--bg-hover);border-color:transparent}
.spinner{width:14px;height:14px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- forms ---------- */
.form-row{margin-bottom:18px}
.form-label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:6px}
.form-hint{font-size:12px;color:var(--text-3);margin-top:6px;line-height:1.5}
.form-input,.input{display:block;width:100%;padding:8px 11px;font-size:14px;line-height:1.45;color:var(--text);background:var(--bg);border:1px solid var(--border-2);border-radius:var(--radius-sm);outline:none;transition:border-color .15s,box-shadow .15s}
.form-input:focus,.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.form-input::placeholder,.input::placeholder{color:var(--text-4)}
.form-input[readonly]{background:var(--bg-2);color:var(--text-2)}
textarea.form-input{resize:vertical;min-height:72px}
select.form-input,select.input{appearance:none;-webkit-appearance:none;padding-right:30px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' fill='none' stroke='%238b8a85' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");background-repeat:no-repeat;background-position:right 10px center}
input[type=checkbox],input[type=radio]{accent-color:var(--accent)}
.switch{position:relative;display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:13px;color:var(--text-2);user-select:none}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch .track{width:32px;height:18px;border-radius:999px;background:var(--border-2);position:relative;transition:background .15s;flex-shrink:0}
.switch .track::after{content:'';position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:transform .15s}
.switch input:checked+.track{background:var(--accent)}
.switch input:checked+.track::after{transform:translateX(14px)}

/* ---------- badges / pills ---------- */
.badge,.sc-badge{display:inline-flex;align-items:center;gap:5px;height:20px;padding:0 8px;border-radius:999px;font-size:11px;font-weight:500;line-height:1;white-space:nowrap;vertical-align:middle}
.badge-live,.sc-live{background:var(--accent-soft);color:var(--accent-text)}
.badge-draft,.sc-draft{background:var(--amber-soft);color:var(--amber)}
.badge-closed{background:var(--bg-3);color:var(--text-3)}
.badge-dot::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}
.pill{height:28px;padding:0 11px;border-radius:999px;border:1px solid var(--border-2);background:var(--bg);color:var(--text-2);font-size:12px;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:5px;transition:all .12s}
.pill:hover{border-color:var(--text-4);color:var(--text)}
.pill.active{background:var(--text);color:var(--bg);border-color:var(--text)}
.pill .n{opacity:.55}

/* ---------- cards ---------- */
.card,.full-width-card,.stat-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}
.card-title{font-size:14px;font-weight:600;margin-bottom:4px}
.card-sub{font-size:12px;color:var(--text-3)}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent-soft);color:var(--accent-text);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;flex-shrink:0;letter-spacing:.02em}
.muted{color:var(--text-3)}
.small{font-size:12px}
.row{display:flex;align-items:center;gap:8px}
.spacer{flex:1}
.divider{height:1px;background:var(--border);margin:20px 0}

/* ---------- app shell: sidebar + main ---------- */
.shell{display:flex;min-height:100vh;background:var(--bg)}
.sidebar{width:var(--sidebar-w);flex-shrink:0;border-right:1px solid var(--border);background:var(--bg-2);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;padding:14px 10px 12px}
.sb-logo{display:flex;align-items:center;gap:8px;padding:6px 8px 14px;font-weight:600;font-size:15px;color:var(--text);letter-spacing:-.01em;text-decoration:none}
.sb-logo:hover{text-decoration:none}
.sb-logo svg{width:22px;height:22px;color:var(--accent)}
.sb-new{margin:0 4px 14px;height:34px}
.sb-nav{display:flex;flex-direction:column;gap:2px}
.sb-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--radius-sm);font-size:13.5px;color:var(--text-2);text-decoration:none;transition:background .12s,color .12s}
.sb-item:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}
.sb-item.active{background:var(--bg-3);color:var(--text);font-weight:500}
.sb-item svg{width:16px;height:16px;opacity:.7;flex-shrink:0}
.sb-item.active svg{opacity:1}
.sb-section{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-4);padding:16px 10px 4px}
.sb-footer{margin-top:auto;border-top:1px solid var(--border);padding:12px 4px 0 6px;display:flex;align-items:center;gap:8px}
.sb-user{flex:1;min-width:0;font-size:12px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main{flex:1;min-width:0}
.page{max-width:1040px;margin:0 auto;padding:40px 40px 64px}
.page-narrow{max-width:760px}
.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.page-header h1{font-size:24px}
.page-sub{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- top bar (editor / results / preview) ---------- */
.topbar{position:sticky;top:0;z-index:50;height:52px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;background:var(--bg);border-bottom:1px solid var(--border)}
.tb-left,.tb-right{display:flex;align-items:center;gap:8px;min-width:0}
.tb-crumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);min-width:0}
.tb-crumb a{color:var(--text-3)}
.tb-crumb a:hover{color:var(--text);text-decoration:none}
.tb-crumb .sep{color:var(--text-4)}
.tb-crumb .cur{color:var(--text);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}
.tb-back{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;color:var(--text-3);text-decoration:none;font-size:15px}
.tb-back:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}
.tb-tabs{display:flex;gap:2px;background:var(--bg-2);border:1px solid var(--border);border-radius:8px;padding:2px}
.tb-tab{padding:5px 11px;border-radius:6px;font-size:13px;color:var(--text-2);text-decoration:none;border:0;background:transparent;cursor:pointer}
.tb-tab:hover{color:var(--text);text-decoration:none}
.tb-tab.active{background:var(--bg);color:var(--text);font-weight:500;box-shadow:var(--shadow-sm)}
.save-state{font-size:12px;color:var(--text-4);min-width:56px;text-align:right;transition:color .2s}
.save-state.saving{color:var(--text-3)}
.save-state.error{color:var(--red)}

/* legacy top nav still used by a few pages */
.app-shell{min-height:100vh;background:var(--bg)}
.app-nav{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:50}
.app-logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;cursor:pointer}
.app-logo-dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.app-nav-right{display:flex;align-items:center;gap:8px}

/* ---------- toasts ---------- */
#ss-toast-container{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none;align-items:center}
.ss-toast{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:13px;box-shadow:var(--shadow);transform:translateY(12px);opacity:0;transition:transform .25s ease,opacity .25s ease;pointer-events:auto;max-width:420px;background:var(--text);color:var(--bg);border:1px solid transparent}
.ss-toast.show{transform:translateY(0);opacity:1}
.ss-toast-error{background:var(--red);color:#fff}
.ss-toast-success{background:var(--text);color:var(--bg)}
.ss-toast-info{background:var(--text);color:var(--bg)}
.ss-toast-icon{width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;flex-shrink:0;background:rgba(255,255,255,.18)}
.ss-toast-msg{line-height:1.4}

/* ---------- skeletons ---------- */
.skeleton{background:var(--bg-3);border-radius:6px;position:relative;overflow:hidden}
.skeleton::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);animation:shimmer 1.4s infinite}
body.dark .skeleton::after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent)}
@keyframes shimmer{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
.skeleton-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:10px}
.skeleton-line{height:12px}
.skeleton-line.w60{width:60%}.skeleton-line.w80{width:80%}.skeleton-line.w40{width:40%}
.skeleton-line.h20{height:20px}.skeleton-line.h28{height:28px}
.skeleton-stat{height:60px;border-radius:12px}

/* ---------- modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(20,20,18,.45);z-index:300;backdrop-filter:blur(2px)}
.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);z-index:301;width:min(520px,calc(100vw - 32px));max-height:calc(100vh - 48px);overflow:auto}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-title{font-size:15px;font-weight:600}
.modal-close{background:none;border:0;font-size:20px;line-height:1;color:var(--text-3);cursor:pointer;width:28px;height:28px;border-radius:6px}
.modal-close:hover{background:var(--bg-hover);color:var(--text)}
.modal-body{padding:20px}

/* ---------- misc ---------- */
.dark-toggle{width:30px;height:30px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--text-3);cursor:pointer;font-size:14px;display:inline-flex;align-items:center;justify-content:center}
.dark-toggle:hover{background:var(--bg-hover);color:var(--text)}
.kbd{display:inline-block;font-family:var(--mono);font-size:11px;padding:1px 5px;border:1px solid var(--border-2);border-bottom-width:2px;border-radius:4px;background:var(--bg);color:var(--text-2)}
.empty{border:1px dashed var(--border-2);border-radius:var(--radius-lg);padding:40px 24px;text-align:center;color:var(--text-3);font-size:13px;background:var(--bg-2)}
.error-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px}
.error-code{font-size:96px;font-weight:700;letter-spacing:-.04em;color:var(--border-2);line-height:1;margin-bottom:8px}
.error-title{font-size:26px;margin-bottom:10px}
.error-desc{font-size:14px;color:var(--text-3);margin-bottom:28px;max-width:420px;line-height:1.7}

/* ---------- responsive shell ---------- */
@media(max-width:820px){
  .shell{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;align-items:center;padding:8px 10px;border-right:0;border-bottom:1px solid var(--border);overflow-x:auto;gap:4px}
  .sb-logo{padding:0 8px 0 2px;flex-shrink:0}
  .sb-new{margin:0 4px;flex-shrink:0}
  .sb-nav{flex-direction:row;gap:2px}
  .sb-item{padding:6px 9px;font-size:13px;white-space:nowrap}
  .sb-section{display:none}
  .sb-footer{margin-top:0;border-top:0;padding:0 0 0 8px;margin-left:auto;flex-shrink:0}
  .sb-user{display:none}
  .page{padding:24px 16px 48px}
  .page-header{flex-direction:column;align-items:flex-start}
  .tb-crumb .cur{max-width:140px}
}

/* ---------- share dialog ---------- */
.share-modal{width:min(560px,calc(100vw - 32px))}
.share-tabs{display:flex;gap:2px;background:var(--bg-2);border:1px solid var(--border);border-radius:8px;padding:2px;margin-bottom:16px}
.share-tab{flex:1;padding:6px 10px;border-radius:6px;font-size:13px;color:var(--text-2);border:0;background:transparent;cursor:pointer;font-family:inherit}
.share-tab.active{background:var(--bg);color:var(--text);font-weight:500;box-shadow:var(--shadow-sm)}
.share-url{display:flex;gap:8px}
.share-url .form-input{font-size:13px}
.share-social{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.share-block{padding:14px 0;border-bottom:1px solid var(--border)}
.share-block:first-child{padding-top:0}
.share-block:last-child{border-bottom:0}
.share-block .form-input{margin-top:10px;font-size:12px}
.share-block textarea.form-input{font-family:var(--mono);font-size:11px}
.share-qr{display:flex;justify-content:center;align-items:center;min-height:120px;padding:18px;background:var(--bg-2);border:1px solid var(--border);border-radius:10px;margin-bottom:10px}
.share-qr img,.share-qr canvas{border-radius:6px;background:#fff;padding:8px}
.share-unpublished{text-align:center;padding:12px 0 4px}
.share-unpublished p{font-size:13px;color:var(--text-2);margin-bottom:14px;line-height:1.5}