:root{
  --bg:#020a17;--panel:#071426;--panel2:#0a1a31;--panel3:#111b3f;--text:#f8fafc;--muted:#91a0bf;
  --line:rgba(148,163,184,.18);--violet:#8b5cf6;--pink:#d946ef;--cyan:#22d3ee;--blue:#3b82f6;
  --green:#22c55e;--amber:#f59e0b;--red:#ef4444;--shadow:0 30px 80px rgba(0,0,0,.38);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(rgba(2,10,23,.93),rgba(2,10,23,.97)),radial-gradient(circle at 18% 18%,rgba(37,99,235,.20),transparent 29%),radial-gradient(circle at 88% 24%,rgba(34,211,238,.13),transparent 27%),var(--bg);color:var(--text);font-family:"Noto Sans Thai",system-ui,sans-serif;min-height:100vh}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.hidden,[hidden]{display:none!important}
.workspace{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:18px 14px;border-right:1px solid var(--line);background:rgba(3,12,27,.94);backdrop-filter:blur(18px);z-index:20}.brand{display:flex;align-items:center;gap:10px;padding:4px 7px 18px}.brand img{width:150px;height:auto;display:block}.nav{display:grid;gap:7px}.nav-button{display:flex;align-items:center;gap:11px;width:100%;border:1px solid transparent;background:transparent;color:#b5bdd8;border-radius:13px;padding:12px 13px;text-align:left;transition:.2s}.nav-button:hover,.nav-button.active{color:#fff;border-color:rgba(34,211,238,.25);background:linear-gradient(90deg,rgba(37,99,235,.26),rgba(139,92,246,.14),rgba(34,211,238,.05))}.nav-icon{width:24px;height:24px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.05);font-size:13px}.sidebar-foot{position:absolute;left:14px;right:14px;bottom:16px;border:1px solid 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rgba(56,189,248,.2);border-radius:25px;padding:30px;background:radial-gradient(circle at 82% 28%,rgba(34,211,238,.18),transparent 25%),radial-gradient(circle at 74% 70%,rgba(139,92,246,.20),transparent 24%),linear-gradient(145deg,#0c1a37,#061326 72%);box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle,rgba(255,255,255,.35) 1px,transparent 1px);background-size:46px 46px;opacity:.16}.hero-content{position:relative;z-index:1;max-width:780px}.hero h1{font:800 clamp(38px,5vw,66px)/.98 Kanit;margin:14px 0}.gradient-text{background:linear-gradient(90deg,#c084fc,#60a5fa 46%,#22d3ee);-webkit-background-clip:text;color:transparent}.hero p{font-size:17px;line-height:1.75;color:#c8d0e8;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin:15px 0}.stat{position:relative;overflow:hidden;border:1px solid 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.visual-export{display:grid;gap:11px;background:linear-gradient(150deg,rgba(10,26,52,.98),rgba(3,12,28,.98));border-color:rgba(34,211,238,.22)}.visual-export .result-label{margin:0}.visual-export canvas{display:block;width:100%;height:auto;aspect-ratio:1/1;border-radius:13px;background:#020817;box-shadow:0 18px 48px rgba(0,0,0,.32);border:1px solid rgba(34,211,238,.16)}.visual-export .button{justify-self:stretch;background:linear-gradient(100deg,#7c3aed,#2563eb 53%,#06b6d4);border:0;box-shadow:0 10px 24px rgba(37,99,235,.24)}
.visual-control{display:grid;gap:7px}.visual-control>b{font-size:12px;color:#dcecff}.visual-actions{display:grid;grid-template-columns:1.35fr 1fr;gap:9px}.image-ai-status{padding:11px 13px;border:1px solid rgba(53,239,255,.22);border-radius:12px;background:rgba(4,19,43,.78);color:#b7c8e8;font-size:12px;line-height:1.65}.image-ai-status.success{border-color:rgba(52,211,153,.45);color:#a7f3d0}.image-ai-status.error{border-color:rgba(248,113,113,.45);color:#fecaca}.loading-box small{display:block;color:#8edff0;margin-top:8px}.result-label>small{color:#8edff0;font-size:10px}
@media(max-width:1100px){.stats{grid-template-columns:1fr 1fr}.studio-layout{grid-template-columns:1fr}.result-card{position:relative;top:auto}.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:820px){.workspace{grid-template-columns:1fr}.sidebar{position:fixed;left:-290px;width:270px;transition:left .25s}.sidebar.open{left:0}.sidebar-foot{position:relative;left:auto;right:auto;bottom:auto;margin-top:18px}.main{padding:14px 16px 40px}.mobile-menu{display:inline-flex}.top-title{display:none}.grid-2,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.calendar{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.stats,.grid-3,.quality{grid-template-columns:1fr}.hero{padding:23px}.hero h1{font-size:39px}.member-meta{display:none}.topbar{justify-content:space-between}.section-head{align-items:flex-start;flex-direction:column}.studio-layout{display:block}.result-card{margin-top:14px}.upload-row{align-items:flex-start}.step-line{width:18px}.button{padding:10px 12px}.calendar{grid-template-columns:1fr}.sidebar{width:86vw;left:-90vw}}
@media(max-width:560px){.visual-actions{grid-template-columns:1fr}.visual-export .chips{gap:6px}.visual-export .chip{font-size:11px}}

/* SEO8U v2.9 — Thai-first neon workspace */
:root{
  --bg:#00030d;--panel:#050d22;--panel2:#07142c;--panel3:#11123b;--text:#f8fbff;--muted:#9aabd0;
  --line:rgba(70,214,255,.27);--violet:#8b5cff;--pink:#ff43e6;--cyan:#35efff;--blue:#2864ff;
  --shadow:0 30px 95px rgba(0,0,18,.58),0 0 48px rgba(25,96,255,.1)
}
body{position:relative;isolation:isolate;background:radial-gradient(circle at 48% -10%,rgba(31,87,255,.3),transparent 33rem),radial-gradient(circle at 92% 34%,rgba(175,38,255,.12),transparent 30rem),radial-gradient(circle at 8% 70%,rgba(0,226,255,.1),transparent 28rem),linear-gradient(180deg,#00030d,#02071b 55%,#00030e)}
body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:radial-gradient(circle,rgba(255,255,255,.9) 0 1px,transparent 1.7px),radial-gradient(circle,rgba(53,239,255,.8) 0 1px,transparent 1.8px),radial-gradient(circle,rgba(151,94,255,.7) 0 1px,transparent 1.8px);background-size:97px 97px,151px 151px,223px 223px;background-position:7px 13px,43px 61px,97px 31px;opacity:.37;animation:workspace-stars 18s ease-in-out infinite alternate}
@keyframes workspace-stars{0%{opacity:.24;filter:brightness(.9)}45%{opacity:.48;filter:brightness(1.35)}100%{opacity:.33;filter:brightness(1.08)}}
.sidebar{background:linear-gradient(180deg,rgba(1,5,20,.98),rgba(2,7,25,.96));border-right-color:rgba(53,239,255,.2);box-shadow:18px 0 70px rgba(0,0,20,.34)}
.nav-button:hover,.nav-button.active{border-color:rgba(53,239,255,.42);background:linear-gradient(90deg,rgba(34,98,255,.3),rgba(132,58,255,.2),rgba(27,221,255,.07));box-shadow:inset 0 1px rgba(255,255,255,.05),0 0 25px rgba(36,204,255,.08)}
.nav-button[disabled]{opacity:.48;cursor:not-allowed}.nav-button[disabled] small{margin-left:auto;padding:2px 6px;border:1px solid rgba(149,165,205,.2);border-radius:999px;font-size:8px;color:#a8b4d1}
.sidebar-foot,.panel,.stat,.result-block,.history-item,.task,.day{border-color:rgba(70,214,255,.24);background:radial-gradient(circle at 93% 7%,rgba(125,59,255,.11),transparent 34%),linear-gradient(150deg,rgba(7,20,54,.96),rgba(2,8,25,.98));box-shadow:inset 0 1px rgba(255,255,255,.045),0 18px 55px rgba(0,2,22,.25)}
.hero{border-color:rgba(53,239,255,.4);background:radial-gradient(circle at 82% 28%,rgba(53,239,255,.22),transparent 27%),radial-gradient(circle at 72% 76%,rgba(145,67,255,.25),transparent 26%),linear-gradient(145deg,#071745,#030a25 72%);box-shadow:0 0 0 1px rgba(129,82,255,.18),0 0 45px rgba(25,211,255,.13),0 30px 90px rgba(0,0,20,.48)}
.gradient-text{background:linear-gradient(90deg,#ff62eb,#a375ff 38%,#35efff 84%);-webkit-background-clip:text;color:transparent;filter:drop-shadow(0 0 16px rgba(53,239,255,.2))}
.button.primary,.visual-export .button{background:linear-gradient(105deg,#7d38ff,#285fff 52%,#00d5ef);box-shadow:0 0 0 1px rgba(202,252,255,.25),0 0 28px rgba(31,211,255,.32),0 15px 36px rgba(48,56,255,.25)}
.input:focus,.select:focus,.textarea:focus,.editable:focus{border-color:rgba(53,239,255,.72);box-shadow:0 0 0 3px rgba(44,107,255,.17),0 0 26px rgba(53,239,255,.09)}
.upload{border-color:rgba(91,115,255,.52);background:linear-gradient(135deg,rgba(42,87,255,.09),rgba(184,49,255,.06))}
.angle-card{position:relative;overflow:hidden;border-color:rgba(78,134,226,.3);background:linear-gradient(145deg,rgba(7,22,58,.96),rgba(2,8,25,.98))}
.angle-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(#35efff,#7b5cff,#ff43e6);opacity:.48}
.angle-card:hover,.angle-card.selected{border-color:rgba(53,239,255,.7);box-shadow:0 0 0 1px rgba(139,92,255,.2),0 18px 42px rgba(0,8,48,.46),0 0 28px rgba(33,218,255,.12)}
.angle-card header small{flex:0 0 auto;padding:4px 8px;border-radius:999px;border:1px solid rgba(53,239,255,.3);background:rgba(53,239,255,.08);color:#a7f8ff}
.angle-card p b{color:#fff}.hashtag{border-color:rgba(53,239,255,.28);background:rgba(31,120,180,.1);color:#b8fbff}
.visual-export{border-color:rgba(53,239,255,.38);box-shadow:0 0 35px rgba(27,211,255,.08),inset 0 1px rgba(255,255,255,.05)}
.visual-export canvas{border-color:rgba(53,239,255,.32);box-shadow:0 24px 70px rgba(0,0,20,.52),0 0 32px rgba(36,204,255,.09)}
.toast{border-color:rgba(53,239,255,.4);background:rgba(3,12,34,.97);box-shadow:0 22px 70px rgba(0,0,20,.65),0 0 28px rgba(53,239,255,.13)}
*{scrollbar-width:thin;scrollbar-color:rgba(80,117,255,.65) rgba(2,7,24,.7)}
@media(max-width:820px){.sidebar.open{box-shadow:25px 0 90px rgba(0,0,20,.72),0 0 40px rgba(46,209,255,.13)}}
@media(prefers-reduced-motion:reduce){body:before{animation:none}.button,.angle-card,.nav-button{transition:none}}

/* SEO8U Brain v3.2 — two-field start and glass themes */
.member{gap:9px}.theme-switch{white-space:nowrap}.essential-note{display:flex!important;align-items:center;justify-content:space-between;gap:12px;padding:11px 13px;border:1px solid rgba(53,239,255,.24);border-radius:14px;background:linear-gradient(90deg,rgba(42,88,255,.12),rgba(30,220,228,.08))}.essential-note span{font-weight:900;color:#bffaff}.essential-note small{color:#91a8cc;text-align:right}
.advanced-options{padding:0!important;border:1px solid rgba(76,126,218,.28);border-radius:15px;background:rgba(2,10,31,.44);overflow:hidden}.advanced-options summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 15px;cursor:pointer;list-style:none;font-weight:900;color:#ddecff}.advanced-options summary::-webkit-details-marker{display:none}.advanced-options summary:after{content:"＋";color:#63efff;font-size:19px}.advanced-options[open] summary:after{content:"−"}.advanced-options summary small{margin-left:auto;font-weight:500;color:#879bbd}.advanced-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;padding:15px;border-top:1px solid rgba(76,126,218,.2)}
.empty-workflow{max-width:560px;margin:auto}.empty-badge{display:inline-flex;padding:6px 10px;border-radius:999px;border:1px solid rgba(53,239,255,.3);background:rgba(53,239,255,.07);font-size:9px;font-weight:900;letter-spacing:.12em;color:#95f8ff}.empty-workflow h3{font-size:22px;line-height:1.45;margin:14px 0}.empty-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:17px 0}.empty-steps article{display:grid;gap:4px;padding:12px;border:1px solid rgba(71,202,255,.21);border-radius:14px;background:linear-gradient(145deg,rgba(15,39,85,.68),rgba(4,14,37,.72));text-align:left}.empty-steps i{font-style:normal;font-size:9px;font-weight:900;color:#71efff}.empty-steps b{font-size:12px;color:#eefaff}.empty-steps small{font-size:9px;color:#8ea4c8}
body.light-theme{--bg:#eff7ff;--panel:rgba(255,255,255,.68);--panel2:rgba(244,249,255,.74);--text:#12213e;--muted:#536681;--line:rgba(80,112,180,.2);background:radial-gradient(circle at 10% 7%,rgba(139,92,246,.17),transparent 28rem),radial-gradient(circle at 92% 18%,rgba(34,211,238,.18),transparent 28rem),linear-gradient(145deg,#fbfdff,#eef8ff 50%,#f6f0ff);color:#12213e}body.light-theme:before{opacity:.1;mix-blend-mode:multiply}
body.light-theme .sidebar{background:linear-gradient(180deg,rgba(255,255,255,.8),rgba(241,248,255,.72));border-color:rgba(86,114,173,.17);box-shadow:18px 0 60px rgba(72,91,132,.1);backdrop-filter:blur(22px)}body.light-theme .brand b,body.light-theme .top-title b,body.light-theme .member-meta b,body.light-theme .section-head h1,body.light-theme .panel h3,body.light-theme .field label,body.light-theme .task b{color:#14213d}body.light-theme .nav-button{color:#405471}body.light-theme .nav-button:hover,body.light-theme .nav-button.active{color:#17284a;background:linear-gradient(90deg,rgba(79,70,229,.11),rgba(6,182,212,.08));border-color:rgba(76,110,194,.18)}
body.light-theme .panel,body.light-theme .stat,body.light-theme .result-block,body.light-theme .history-item,body.light-theme .task,body.light-theme .day,body.light-theme .sidebar-foot,body.light-theme .hero,body.light-theme .advanced-options{background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(244,249,255,.62));border-color:rgba(255,255,255,.9);box-shadow:0 20px 60px rgba(64,83,128,.12),inset 0 1px rgba(255,255,255,.96);backdrop-filter:blur(20px) saturate(1.2)}body.light-theme .hero{background:radial-gradient(circle at 82% 28%,rgba(53,239,255,.18),transparent 27%),radial-gradient(circle at 72% 76%,rgba(145,67,255,.16),transparent 27%),rgba(255,255,255,.66)}
body.light-theme .input,body.light-theme .select,body.light-theme .textarea,body.light-theme .editable{background:rgba(255,255,255,.74);border-color:rgba(73,104,169,.2);color:#172443}body.light-theme .help,body.light-theme .panel-intro,body.light-theme .task small,body.light-theme .section-head p,body.light-theme .top-title small,body.light-theme .member-meta small{color:#5b6d87}body.light-theme .essential-note{background:linear-gradient(90deg,rgba(99,102,241,.09),rgba(6,182,212,.08))}body.light-theme .essential-note span,body.light-theme .advanced-options summary{color:#233759}body.light-theme .advanced-grid{border-color:rgba(75,106,168,.14)}
body.light-theme .empty-steps article{background:rgba(255,255,255,.66);border-color:rgba(75,108,178,.16)}body.light-theme .empty-steps b,body.light-theme .empty-workflow h3{color:#172443}body.light-theme .empty-steps small,body.light-theme .result-empty p{color:#5b6d87}body.light-theme .button:not(.primary):not(.danger){background:rgba(255,255,255,.62);border-color:rgba(76,106,170,.2);color:#233759}body.light-theme .toast{background:rgba(255,255,255,.92);color:#172443}
@media(max-width:820px){.advanced-grid{grid-template-columns:1fr}.essential-note{align-items:flex-start;flex-direction:column}.essential-note small{text-align:left}.theme-switch{font-size:0;padding:10px}.theme-switch:first-letter{font-size:16px}}
@media(max-width:560px){.empty-steps{grid-template-columns:1fr}.advanced-options summary{align-items:flex-start;flex-wrap:wrap}.advanced-options summary small{order:3;margin-left:0;width:100%}}