/* ============================================================
   TheoryCraft Lite — design system
   Two themes (light / dark) driven by [data-theme] on <html>.
   Components read CSS variables only, so the same rules serve both.
   ============================================================ */

:root,
:root[data-theme="light"]{
  --bg:#eef1f7; --bg-grad:radial-gradient(1200px 620px at 82% -8%,#e4e9ff 0%,transparent 60%),
                          radial-gradient(900px 520px at -5% 110%,#e9f7f2 0%,transparent 55%);
  --surface:#ffffff; --surface-2:#f7f9fc; --panel:#ffffff; --panel-2:#f3f6fb;
  --line:#e4e8f0; --line2:#eef1f7; --line-strong:#d3dae6;
  --txt:#161d2e; --txt2:#3b4660; --mut:#6b7589; --faint:#9aa4b8;

  --accent:#4f46e5; --accent-2:#6d6bf2; --accent-d:#4038c7; --accent-rgb:79,70,229;
  --accent-soft:#ecebfd; --accent-line:#d6d3fb;

  --good:#0c9b57; --good-bg:#e3f6ec; --warn:#a9711a; --warn-bg:#fbf1dd;
  --bad:#d83f3a; --bad-bg:#fbe7e6; --bad-rgb:216,63,58;

  --hover:#f1f4fa;
  --radius:14px; --radius-lg:18px; --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,30,55,.05);
  --shadow:0 1px 2px rgba(20,30,55,.05),0 6px 18px rgba(20,30,55,.06);
  --shadow-lg:0 18px 50px rgba(20,30,55,.16);
  --shadow-btn:0 1px 2px rgba(20,30,55,.10),0 6px 16px rgba(var(--accent-rgb),.28);
  --code-bg:#0f1626; --code-txt:#d7e0f0;
  --topbar-bg:rgba(255,255,255,.78);
  --scrim:rgba(22,28,46,.42);
}

:root[data-theme="dark"]{
  --bg:#0b0f1a; --bg-grad:radial-gradient(1200px 640px at 84% -10%,#1a2350 0%,transparent 58%),
                          radial-gradient(900px 540px at -6% 112%,#0f2c2a 0%,transparent 52%);
  --surface:#151b2b; --surface-2:#1b2233; --panel:#121826; --panel-2:#1a2233;
  --line:#283041; --line2:#1f2636; --line-strong:#323c52;
  --txt:#eaeefb; --txt2:#b6bfd4; --mut:#8590a8; --faint:#5f6a82;

  --accent:#7585ff; --accent-2:#8c7bff; --accent-d:#6373f5; --accent-rgb:117,133,255;
  --accent-soft:#1e2747; --accent-line:#33406e;

  --good:#34d399; --good-bg:#0f2e26; --warn:#e0a64b; --warn-bg:#33280f;
  --bad:#f4716b; --bad-bg:#3a1c1d; --bad-rgb:244,113,107;

  --hover:#1d2536;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 22px rgba(0,0,0,.4);
  --shadow-lg:0 22px 60px rgba(0,0,0,.6);
  --shadow-btn:0 1px 2px rgba(0,0,0,.45),0 8px 20px rgba(var(--accent-rgb),.42);
  --code-bg:#0a0f1c; --code-txt:#cdd7ec;
  --topbar-bg:rgba(18,24,38,.72);
  --scrim:rgba(4,7,15,.62);
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);background-image:var(--bg-grad);background-attachment:fixed;color:var(--txt);
  font:14px/1.55 -apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;
  transition:background-color .25s ease,color .25s ease}
.hidden{display:none!important}
.muted{color:var(--mut)}
h1{font-size:22px;margin:0 0 4px;font-weight:760;letter-spacing:-.02em}
h2{font-size:14.5px;margin:0;font-weight:700;letter-spacing:-.01em}
.num{text-align:right;font-variant-numeric:tabular-nums}
::selection{background:rgba(var(--accent-rgb),.28)}

/* ---------- brand ---------- */
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em}
.logo{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;flex:0 0 30px;
  background:linear-gradient(140deg,var(--accent),var(--accent-2));color:#fff;font-size:15px;
  box-shadow:0 4px 12px rgba(var(--accent-rgb),.45),inset 0 1px 0 rgba(255,255,255,.35)}

/* ---------- buttons ---------- */
.btn{position:relative;border:1px solid var(--line-strong);background:var(--surface);color:var(--txt2);
  padding:9px 16px;border-radius:11px;font-size:13.5px;font-weight:640;cursor:pointer;
  box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .12s ease,background .12s ease,border-color .12s ease;
  display:inline-flex;align-items:center;gap:7px;line-height:1.1}
.btn:hover{background:var(--surface-2);border-color:var(--accent-line);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn.primary{background:linear-gradient(140deg,var(--accent-2),var(--accent));border-color:transparent;color:#fff;
  box-shadow:var(--shadow-btn),inset 0 1px 0 rgba(255,255,255,.28)}
.btn.primary:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn.primary:active{filter:brightness(.98)}
.btn.success{background:linear-gradient(140deg,#19c37d,var(--good));border-color:transparent;color:#fff;
  box-shadow:0 1px 2px rgba(0,0,0,.12),0 6px 16px rgba(16,160,90,.34),inset 0 1px 0 rgba(255,255,255,.28)}
.btn.success:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn.danger{background:linear-gradient(140deg,#ef5750,var(--bad));border-color:transparent;color:#fff;
  box-shadow:0 1px 2px rgba(0,0,0,.12),0 6px 16px rgba(var(--bad-rgb),.34),inset 0 1px 0 rgba(255,255,255,.25)}
.btn.danger:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--mut);box-shadow:none}
.btn.ghost:hover{background:var(--hover);color:var(--txt);transform:none;box-shadow:none}
.btn.sm{padding:6px 11px;font-size:12.5px;border-radius:9px}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important;box-shadow:var(--shadow-sm)!important;filter:none!important}

/* ---------- icon button (theme toggle etc) ---------- */
.icon-btn{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;cursor:pointer;
  border:1px solid var(--line-strong);background:var(--surface);color:var(--txt2);box-shadow:var(--shadow-sm);
  transition:transform .12s ease,box-shadow .12s ease,color .12s,border-color .12s}
.icon-btn:hover{color:var(--accent);border-color:var(--accent-line);transform:translateY(-1px);box-shadow:var(--shadow)}
.icon-btn svg{width:18px;height:18px}
.icon-btn .ic-sun{display:none}
:root[data-theme="dark"] .icon-btn .ic-sun{display:block}
:root[data-theme="dark"] .icon-btn .ic-moon{display:none}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:34px 32px;width:360px;display:flex;flex-direction:column;gap:6px;overflow:hidden}
.login-card::before{content:'';position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.login-card .brand{font-size:20px;margin-top:4px}
.login-card .muted{margin:2px 0 18px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--mut);font-weight:640;margin-bottom:11px}
.login-card .btn{margin-top:10px;justify-content:center}
.err{color:var(--bad);font-size:12.5px;min-height:16px;margin-top:6px}

/* shared input styling */
.login-card input,.modal input,.modal select,.select,.search,
#modal-body input,#modal-body select,
.form-body input,.form-body select,.form-body textarea,
.chat-input textarea{
  border:1px solid var(--line-strong);border-radius:10px;padding:9px 12px;font-size:14px;
  color:var(--txt);background:var(--surface-2);transition:border-color .12s,box-shadow .12s,background .12s}
.login-card input:focus,.modal input:focus,.modal select:focus,.select:focus,.search:focus,
#modal-body input:focus,#modal-body select:focus,
.form-body input:focus,.form-body select:focus,.form-body textarea:focus,
.chat-input textarea:focus{
  outline:none;border-color:var(--accent);background:var(--surface);
  box-shadow:0 0 0 3px rgba(var(--accent-rgb),.20)}

/* ---------- app shell ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:242px;flex:0 0 242px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:18px 14px;position:sticky;top:0;height:100vh}
.sidebar .brand{font-size:16.5px;padding:4px 8px 18px}
.nav{display:flex;flex-direction:column;gap:3px}
.nav-item{position:relative;display:flex;align-items:center;gap:12px;width:100%;border:none;background:none;cursor:pointer;
  padding:10px 12px;border-radius:11px;font-size:14px;font-weight:580;color:var(--mut);text-align:left;
  transition:background .14s,color .14s}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;color:var(--faint);transition:color .14s}
.nav-item:hover{background:var(--hover);color:var(--txt)}
.nav-item:hover svg{color:var(--txt2)}
.nav-item.on{background:linear-gradient(135deg,var(--accent-soft),transparent);color:var(--accent);font-weight:700}
.nav-item.on::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:linear-gradient(var(--accent),var(--accent-2));box-shadow:0 0 10px rgba(var(--accent-rgb),.55)}
.nav-item.on svg{color:var(--accent)}
.nav-spacer{flex:1}
.sidebar-foot{border-top:1px solid var(--line);padding-top:10px;display:flex;flex-direction:column;gap:2px}
.user{display:flex;align-items:center;gap:10px;padding:6px 12px 12px}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(140deg,var(--accent),var(--accent-2));
  color:#fff;display:grid;place-items:center;font-weight:760;font-size:12.5px;flex:0 0 30px;
  box-shadow:0 3px 10px rgba(var(--accent-rgb),.4)}
.who{font-weight:680;font-size:13.5px;color:var(--txt)}
.nav-item.subtle{font-size:13px;font-weight:520}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;
  border-bottom:1px solid var(--line);background:var(--topbar-bg);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);position:sticky;top:0;z-index:5}
.crumb{font-size:13px;color:var(--mut);font-weight:520}
.crumb .sep{margin:0 8px;color:var(--faint)}
#crumb-section{color:var(--txt);font-weight:700}
.topbar-right{display:flex;align-items:center;gap:11px}
.date-label{font-size:12px;color:var(--mut);font-weight:640}
.select,.search{padding:8px 12px;font-size:13px}
.search{min-width:210px}
.content{padding:26px 28px 80px;width:100%;max-width:1520px}
.row-between{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}

/* ---------- cards ---------- */
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:20px;overflow:hidden}
.card-head{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;
  border-bottom:1px solid var(--line2);background:linear-gradient(180deg,var(--surface-2),transparent)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{position:sticky;top:0;background:var(--surface-2);text-align:left;color:var(--mut);font-weight:700;
  font-size:11px;text-transform:uppercase;letter-spacing:.05em;padding:11px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
thead th.num{text-align:right}
tbody td{padding:12px 16px;border-bottom:1px solid var(--line2);white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--txt2)}
tbody tr:last-child td{border-bottom:none}
tbody tr{transition:background .1s}
tbody tr:hover{background:var(--hover)}
.c-name,.acct-name{font-weight:680;color:var(--txt)}
td.roas-good{color:var(--good);font-weight:720}
td.roas-bad{color:var(--bad);font-weight:720}
.sub{font-size:12px;color:var(--mut)}

/* ---------- editable cell ---------- */
.editable{cursor:pointer;display:inline-flex;align-items:center;gap:7px;border-radius:7px;padding:2px 6px;margin:-2px -6px;transition:background .1s}
.editable:hover{background:var(--accent-soft)}
.editable .pen{opacity:0;color:var(--accent);font-size:12px;transition:.1s}
.editable:hover .pen{opacity:1}

/* ---------- status pills ---------- */
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 11px;border-radius:999px;font-size:11.5px;font-weight:760;letter-spacing:.01em;
  border:1px solid transparent}
.pill::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.9}
.s-active,.s-eligible{background:var(--good-bg);color:var(--good);border-color:rgba(12,155,87,.22)}
.s-paused,.s-under{background:var(--warn-bg);color:var(--warn);border-color:rgba(169,113,26,.22)}
.s-deleted,.s-rejected{background:var(--bad-bg);color:var(--bad);border-color:rgba(var(--bad-rgb),.24)}
.s-limited{background:var(--warn-bg);color:var(--warn);border-color:rgba(169,113,26,.22)}

/* ---------- links / filters / chips ---------- */
a.vid{color:var(--accent);text-decoration:none;max-width:240px;overflow:hidden;text-overflow:ellipsis;display:inline-block;vertical-align:bottom;font-weight:560}
a.vid:hover{text-decoration:underline}
.filters{display:flex;gap:8px;align-items:center}
.chip-toggle{border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:7px 14px;font-size:12.5px;
  font-weight:640;color:var(--mut);cursor:pointer;box-shadow:var(--shadow-sm);transition:.12s}
.chip-toggle:hover{border-color:var(--accent-line);color:var(--txt);transform:translateY(-1px)}
.chip-toggle.on{background:linear-gradient(135deg,var(--accent-soft),transparent);border-color:var(--accent-line);color:var(--accent)}

/* ---------- empty / remove ---------- */
.empty{padding:38px 18px;text-align:center;color:var(--mut)}
.btn-remove{border:1px solid var(--line-strong);background:var(--surface);color:var(--faint);width:30px;height:30px;border-radius:9px;
  cursor:pointer;font-size:14px;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0;transition:.12s}
.btn-remove:hover{border-color:var(--bad);background:var(--bad-bg);color:var(--bad)}

/* ---------- modal ---------- */
.modal-wrap{position:fixed;inset:0;background:var(--scrim);backdrop-filter:blur(3px);display:grid;place-items:center;z-index:20;padding:20px}
.modal{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:470px;max-width:100%;overflow:hidden}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:17px 22px;border-bottom:1px solid var(--line2);
  background:linear-gradient(180deg,var(--surface-2),transparent)}
.modal-head h3{margin:0;font-size:15.5px;font-weight:720}
.modal .x{border:none;background:none;font-size:25px;line-height:1;color:var(--mut);cursor:pointer;transition:color .1s}
.modal .x:hover{color:var(--txt)}
#modal-body{padding:20px 22px}
#modal-body label{display:block;font-size:12.5px;color:var(--mut);font-weight:640;margin-bottom:6px}
#modal-body input,#modal-body select{width:100%;margin-bottom:14px}
.modal-actions{display:flex;justify-content:flex-end;gap:9px}

/* ---------- create form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.form-grid{grid-template-columns:1fr}}
.form-body{padding:18px 20px}
.form-body label{display:block;font-size:12.5px;color:var(--mut);font-weight:640;margin:0 0 6px}
.form-body label .opt{font-weight:500;color:var(--faint)}
.form-body input,.form-body select,.form-body textarea{width:100%;margin-bottom:14px}
.form-body textarea{font:14px/1.5 inherit;resize:vertical}
.form-body .two{display:flex;gap:12px}.form-body .two>div{flex:1}
.ch-pick{display:flex;align-items:center;gap:8px}
.ch-pick label{font-size:12px;color:var(--mut);font-weight:640;margin:0}
.ch-pick .select{padding:6px 10px;font-size:12.5px}
.card-note{padding:0 20px 14px;font-size:12.5px}
.form-body .hint{font-size:12px;color:var(--faint);margin:-8px 0 14px}
.upl{display:flex;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.upl .btn{flex:0 0 auto;cursor:pointer}
.job-log{margin-top:14px;background:var(--code-bg);color:var(--code-txt);border-radius:12px;padding:15px 17px;
  font:12.5px/1.55 ui-monospace,Consolas,monospace;max-height:380px;overflow:auto;white-space:pre-wrap;border:1px solid var(--line)}
.job-log .err{color:#ff9b95}
.cr-row{display:flex;gap:10px;align-items:center;margin-bottom:10px;flex-wrap:wrap;
  border:1px dashed transparent;border-radius:11px;padding:5px;transition:.12s}
.cr-row.drag{border-color:var(--accent);background:var(--accent-soft)}
.cr-row input{margin-bottom:0}
.cr-row .cr-name{flex:0 0 150px}.cr-row .cr-url{flex:1;min-width:220px}
.cr-upload{flex:0 0 auto;cursor:pointer;white-space:nowrap}
.cr-status{flex:0 0 auto;min-width:120px}
.cr-row .cr-del{flex:0 0 auto}
.copy-list{display:flex;flex-direction:column;gap:8px;margin-bottom:8px}
.copy-row{display:flex;gap:8px;align-items:center}
.copy-row input{margin-bottom:0;flex:1}
.copy-row .cr-del{flex:0 0 auto}
.create-actions{display:flex;align-items:center;gap:16px;margin-top:4px;flex-wrap:wrap}
#dg-result{font-size:13.5px}
.dg-ok{color:var(--good);font-weight:680}.dg-bad{color:var(--bad);font-weight:680}
.dg-steps{margin:10px 0 0;padding:14px 18px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;max-width:680px}
.dg-steps .s{font-size:12.5px;color:var(--txt2);padding:2px 0}
.dg-steps .s b{color:var(--accent);text-transform:uppercase;font-size:10.5px;letter-spacing:.05em;margin-right:8px}

/* ---------- creatives drop square ---------- */
.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;
  padding:34px 24px;margin-bottom:16px;border:2px dashed var(--line-strong);border-radius:var(--radius);
  background:var(--surface-2);color:var(--mut);cursor:pointer;
  transition:border-color .14s,background .14s,transform .12s,box-shadow .14s}
.dropzone:hover{border-color:var(--accent-line);background:var(--accent-soft);color:var(--txt2)}
.dropzone.drag{border-style:solid;border-color:var(--accent);background:var(--accent-soft);color:var(--accent);
  transform:scale(1.005);box-shadow:0 0 0 4px rgba(var(--accent-rgb),.14) inset}
.dropzone .dz-icon{width:34px;height:34px;color:var(--accent);opacity:.9}
.dropzone .dz-title{font-size:15px;font-weight:720;color:var(--txt);letter-spacing:-.01em}
.dropzone .dz-sub{font-size:12.5px;max-width:420px}
.dropzone .dz-browse{color:var(--accent);font-weight:640;text-decoration:underline;text-underline-offset:2px}

/* ---------- jobs ---------- */
.nav-badge{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;
  background:linear-gradient(140deg,var(--accent-2),var(--accent));color:#fff;font-size:10.5px;font-weight:760;
  margin-left:6px;box-shadow:0 2px 6px rgba(var(--accent-rgb),.45)}
.job-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.job-log-steps{max-height:52vh;overflow:auto;margin:0}

/* ---------- copywriter chat ---------- */
.chat-card{display:flex;flex-direction:column;min-height:440px}
.chat-msgs{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:13px;max-height:560px}
.chat-empty{margin:auto;color:var(--mut);font-size:13.5px;text-align:center}
.msg{max-width:80%;padding:11px 15px;border-radius:14px;font-size:14px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word;box-shadow:var(--shadow-sm)}
.msg.user{align-self:flex-end;background:linear-gradient(140deg,var(--accent-2),var(--accent));color:#fff;border-bottom-right-radius:5px}
.msg.assistant{align-self:flex-start;background:var(--surface-2);border:1px solid var(--line2);color:var(--txt);border-bottom-left-radius:5px}
.msg.assistant.streaming .msg-text::after{content:'▋';color:var(--accent);animation:blink 1s steps(2) infinite}
.msg-actions{margin-top:8px;display:flex;gap:8px}
.msg-act{border:1px solid var(--line-strong);background:var(--surface);color:var(--accent);font-size:12px;font-weight:640;padding:5px 11px;border-radius:8px;cursor:pointer;transition:.12s}
.msg-act:hover{background:var(--accent-soft);border-color:var(--accent-line)}
@keyframes blink{0%,50%{opacity:1}50.01%,100%{opacity:0}}
.chat-input{display:flex;gap:10px;align-items:flex-end;padding:15px 18px;border-top:1px solid var(--line2)}
.chat-input textarea{flex:1;font:14px/1.5 inherit;resize:vertical}
.chat-input .btn{flex:0 0 auto}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--txt);color:var(--bg);
  padding:12px 20px;border-radius:12px;font-size:13.5px;font-weight:600;box-shadow:var(--shadow-lg);z-index:30}
.toast.err{background:linear-gradient(140deg,#ef5750,var(--bad));color:#fff}

@media(max-width:760px){
  .sidebar{width:66px;flex:0 0 66px}
  .sidebar .brand span:last-child,.nav-item span,.user .who,.date-label{display:none}
  .content,.topbar{padding-left:16px;padding-right:16px}
}
