/* Shared ambient surfaces: decoration stays behind readable product content. */
.home-platform,.public-site{--surface-tone:#2d62ce;--surface-rgb:61,114,231;--surface-soft:134,165,247}
:is([data-feature-tab="literature"],[data-feature-panel="literature"],.public-site[data-category="literature"]){--surface-tone:#14796e;--surface-rgb:33,151,132;--surface-soft:133,214,194}
:is([data-feature-tab="reduce"],[data-feature-panel="reduce"],.public-site[data-category="reduce"]){--surface-tone:#9b571f;--surface-rgb:199,132,61;--surface-soft:246,203,142}
:is([data-feature-tab="aigc"],[data-feature-panel="aigc"],.public-site[data-category="aigc"]){--surface-tone:#7549ac;--surface-rgb:143,101,205;--surface-soft:205,175,239}
:is([data-feature-tab="detection"],[data-feature-panel="detection"],.public-site[data-category="detection"]){--surface-tone:#266da0;--surface-rgb:52,139,188;--surface-soft:147,206,231}
:is([data-feature-tab="ppt"],[data-feature-panel="ppt"],.public-site[data-category="ppt"]){--surface-tone:#5f51b5;--surface-rgb:113,99,210;--surface-soft:188,178,242}
:is([data-feature-tab="format"],[data-feature-panel="format"],.public-site[data-category="format"]){--surface-tone:#247578;--surface-rgb:41,143,149;--surface-soft:151,213,211}
:is([data-feature-tab="research"],[data-feature-panel="research"],.public-site[data-category="research"]){--surface-tone:#347b52;--surface-rgb:62,146,102;--surface-soft:160,217,182}

/* A soft blue / violet / mint light field frames the writing promise. */
.home-platform main .hero{isolation:isolate;background:radial-gradient(ellipse at 15% 20%,#eef3ff 0,transparent 48%),linear-gradient(110deg,#f8faff 5%,#f1f5ff 58%,#edf5ff);border-bottom:1px solid #e5ecfc}
.home-platform main .hero:before{content:"";z-index:-1;width:610px;height:610px;top:-155px;right:0;border:0;background:radial-gradient(ellipse at 38% 42%,#b6c8ff 0,#ccc4fb99 38%,#d5d2ff00 70%);filter:blur(30px);opacity:.8;animation:ambient-light-drift 18s ease-in-out infinite alternate;pointer-events:none}
.home-platform main .hero:after{content:"";position:absolute;z-index:-1;width:460px;height:340px;bottom:-170px;left:28%;border-radius:50%;background:radial-gradient(ellipse,#b5e7e2a8 0,#c8e7f133 45%,transparent 72%);filter:blur(28px);pointer-events:none}
.home-platform main .hero .platform-hero-copy>.eyebrow{display:inline-flex;gap:8px;padding:7px 13px;border:1px solid #cfdefb;border-radius:999px;background:linear-gradient(120deg,#fffffff0,#e9f0ffdc);color:#375fb4;box-shadow:inset 0 1px #fff,0 4px 12px #3868c208;letter-spacing:.03em;font-size:12px}
.home-platform main .hero .hero-trust{flex-wrap:wrap;gap:9px}
.home-platform main .hero .hero-trust>span{padding:5px 9px;border:1px solid #dbe7f3;border-radius:6px;background:#ffffffa6;color:#526b83;font-size:11px}
.home-platform main .space-card{background:linear-gradient(155deg,#fffffffa,#f9fbfff5);border-color:#fff;border-radius:18px;box-shadow:0 24px 64px #395f9d20,0 5px 16px #426ecf0d,0 0 0 1px #b9ccf34d}
.home-platform main .space-card-head{background:linear-gradient(110deg,#f7faff,#eef3ffb3);border-bottom:1px solid #e5ecf9}
.home-platform main .space-card-body{background:linear-gradient(140deg,#fff,#fbfcff)}
.home-platform main .space-card-foot{background:#f8faff}

/* Each tool keeps a consistent accent across its tab, label and preview. */
.home-platform main .capabilities{position:relative;isolation:isolate}
.home-platform main .capabilities:before{content:"";position:absolute;z-index:-1;pointer-events:none;inset:55px -30px 0;background:radial-gradient(ellipse at 85% 60%,#ece8ff80,transparent 60%),radial-gradient(ellipse at 12% 65%,#dfedff66,transparent 55%)}
.home-platform main .feature-tabs button{color:var(--surface-tone);border-color:rgba(var(--surface-rgb),.15);border-radius:10px;background:linear-gradient(145deg,#fff,rgba(var(--surface-rgb),.055));box-shadow:inset 0 1px #fff,0 2px 5px #28476c04;transition:background .2s,border-color .2s,box-shadow .2s,transform .2s}
.home-platform main .feature-tabs button:hover{color:var(--surface-tone);border-color:rgba(var(--surface-rgb),.4);background:rgba(var(--surface-rgb),.085);box-shadow:0 5px 12px rgba(var(--surface-rgb),.1)}
.home-platform main .feature-tabs button.is-active,.home-platform main .feature-tabs button.is-active:hover{color:#fff;background:linear-gradient(130deg,var(--surface-tone),#2c62d0);border-color:transparent;box-shadow:0 5px 14px rgba(var(--surface-rgb),.21)}
.home-platform main .feature-stage{isolation:isolate;border-color:rgba(var(--surface-rgb),.17);border-radius:20px;background:radial-gradient(ellipse at 93% 25%,rgba(var(--surface-soft),.32),transparent 57%),radial-gradient(ellipse at 0 100%,rgba(var(--surface-rgb),.055),transparent 52%),linear-gradient(115deg,#fafcff,#f8faff);box-shadow:0 14px 38px #2e4e7c08,inset 0 1px #fff}
.home-platform main .feature-stage:before{content:"";position:absolute;z-index:-1;pointer-events:none;width:340px;height:340px;right:-70px;bottom:-200px;border-radius:50%;background:radial-gradient(ellipse,rgba(var(--surface-rgb),.16),transparent 70%)}
.home-platform main .feature-copy .eyebrow{display:inline-flex;width:fit-content;max-width:100%;padding:6px 11px;border:1px solid rgba(var(--surface-rgb),.17);border-radius:999px;background:linear-gradient(120deg,#ffffffeb,rgba(var(--surface-rgb),.07));color:var(--surface-tone);box-shadow:inset 0 1px #fff;font-size:11px;line-height:1.65}
.home-platform main .outline-preview{box-shadow:0 16px 32px #324c7910,0 3px 8px #324c7907;border-color:#dce5f4;background:#ffffffed}
.home-platform main .feature-stage .preview-toolbar{background:linear-gradient(100deg,#fff,rgba(var(--surface-rgb),.045));color:var(--surface-tone)}
.home-platform main .feature-stage .pill{color:var(--surface-tone);background:rgba(var(--surface-rgb),.075)}

/* Alternate soft environments with clearer cards, rather than a flat white page. */
.home-platform main .work-path{background:radial-gradient(ellipse at 0 20%,#e9f2ff88,transparent 45%),radial-gradient(ellipse at 100% 85%,#ede6ff70,transparent 42%),#f7f9fe;border-block:1px solid #edf1f8}
.home-platform main .reliable-card{padding:18px 15px;border:1px solid #e4eaf5;border-radius:12px;background:linear-gradient(135deg,#ffffffed,#f9fbffdd);box-shadow:0 4px 12px #28456f04}
.home-platform main .icon-square{box-shadow:inset 0 1px #ffffffc9,0 4px 10px #3975db0a;background:linear-gradient(145deg,#f4f8ff,#e1ebff);border:1px solid #e0e9fb}
.home-platform main .icon-square.mint{background:linear-gradient(145deg,#f2fcf8,#def3eb);border-color:#deeee7}
.home-platform main .icon-square.purple{background:linear-gradient(145deg,#f8f4ff,#e9e0ff);border-color:#e8e0f8}
.home-platform main .icon-square.amber{background:linear-gradient(145deg,#fffbf1,#fbebd2);border-color:#f3e8d7}
.home-platform main .journey-card{border-color:#e0e7f3;box-shadow:0 7px 18px #304f7c06}
.home-platform main .journey-visual{background:radial-gradient(ellipse at 20% 0,#c6d7ff,transparent 72%),linear-gradient(120deg,#edf3ff,#f5f6ff)}
.home-platform main .journey-card:nth-child(2) .journey-visual{background:radial-gradient(ellipse at 20% 0,#c8e9db,transparent 72%),linear-gradient(120deg,#eef9f4,#f5fbf8)}
.home-platform main .journey-card:nth-child(3) .journey-visual{background:radial-gradient(ellipse at 20% 0,#ddd0f6,transparent 72%),linear-gradient(120deg,#f4effd,#faf7ff)}
.home-platform main .journey-card:nth-child(4) .journey-visual{background:radial-gradient(ellipse at 20% 0,#f4debc,transparent 72%),linear-gradient(120deg,#fff7eb,#fffaf3)}
.home-platform main .home-guides{background:radial-gradient(ellipse at 75% 45%,#eff0ff77,transparent 65%),#fff}
.home-platform main .home-guide-card{background:radial-gradient(ellipse at 100% 0,#e6edff99,transparent 65%),#fcfdff;border-color:#dfe7f6;box-shadow:0 7px 20px #29477105;border-radius:15px}
.home-platform main .home-guide-card:nth-child(2){--surface-tone:#247578;--surface-rgb:41,143,149;background:radial-gradient(ellipse at 100% 0,#e0f2edb3,transparent 65%),#fcfefd}
.home-platform main .home-guide-card:nth-child(3){--surface-tone:#5f51b5;--surface-rgb:113,99,210;background:radial-gradient(ellipse at 100% 0,#ebe6ffb3,transparent 65%),#fdfcff}
.home-platform main .home-guide-label{display:inline-flex;align-items:center;padding:4px 9px;border:1px solid rgba(var(--surface-rgb),.13);border-radius:6px;background:rgba(var(--surface-rgb),.065);color:var(--surface-tone);font-size:11px}
.home-platform main .home-guide-card:hover{border-color:rgba(var(--surface-rgb),.35);box-shadow:0 10px 25px rgba(var(--surface-rgb),.08)}
.home-platform main .access-section{background:radial-gradient(ellipse at 15% 10%,#eaf2ffb3,transparent 55%),radial-gradient(ellipse at 90% 80%,#eee9ffa6,transparent 53%),#f7f9fe;border-block:1px solid #e9eff8}
.home-platform main .access-card{background:linear-gradient(145deg,#fffffff5,#fbfcfff2);border-color:#dfe7f4;box-shadow:0 8px 22px #334e7a06}
.home-platform main .access-card.ready{background:radial-gradient(ellipse at 0 0,#e1ecffb3,transparent 65%),#fff;border-color:#b9cff5;box-shadow:0 9px 25px #3972d412}
.home-platform main .access-card.ready .pill{background:#e4efff;color:#3264ae;border:1px solid #cfdef7}
.home-platform main .access-head .pill{border:1px solid #e0e5ee;color:#64738b;background:#f2f5fa}
.home-platform main .plans-banner{background:linear-gradient(110deg,#ffffffe8,#f0f2ffbd);border-color:#dce4f6;box-shadow:inset 0 1px #fff}
.home-platform main .faq-section{background:radial-gradient(ellipse at 0 0,#eaf0ff77,transparent 50%),#fff}

/* Public reading pages share the brand atmosphere; long-form text stays solid. */
.public-site .public-hero{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 100% 0,rgba(var(--surface-soft),.43),transparent 56%),radial-gradient(ellipse at 12% 100%,rgba(var(--surface-rgb),.055),transparent 50%),linear-gradient(115deg,#f8faff,#f1f5ff);border-bottom-color:#dfe7f7}
.public-site .public-hero:before{content:"";position:absolute;z-index:-1;pointer-events:none;width:420px;height:300px;right:-70px;bottom:-170px;border-radius:50%;background:radial-gradient(ellipse,rgba(var(--surface-rgb),.23),transparent 70%);filter:blur(22px)}
.public-site .public-eyebrow{display:inline-flex;align-items:center;width:fit-content;max-width:100%;padding:5px 11px;border:1px solid rgba(var(--surface-rgb),.19);border-radius:999px;background:linear-gradient(120deg,#fffffff2,rgba(var(--surface-rgb),.055));color:var(--surface-tone);box-shadow:inset 0 1px #fff;font-size:11px;letter-spacing:.04em}
.public-site .public-link-card{background:radial-gradient(ellipse at 100% 0,rgba(var(--surface-soft),.19),transparent 65%),#fcfdff;border-color:#e0e7f4;box-shadow:0 5px 16px #2c4d7d05}
.public-site .public-card-label{display:inline-flex;padding:3px 8px;border:1px solid rgba(var(--surface-rgb),.13);border-radius:6px;background:rgba(var(--surface-rgb),.05);color:var(--surface-tone)}
.public-site .public-link-card:hover{background:radial-gradient(ellipse at 100% 0,rgba(var(--surface-soft),.28),transparent 65%),#f9fbff;border-color:rgba(var(--surface-rgb),.32)}
.public-site .public-footer{background:radial-gradient(ellipse at 95% 0,#ede9ff70,transparent 45%),#f7faff}

@keyframes ambient-light-drift{from{transform:translate(0,0)}to{transform:translate(-24px,18px)}}
@media(max-width:980px){.home-platform main .capabilities:before{left:0;right:0}}
@media(max-width:680px){
 .home-platform main .hero:before{width:360px;height:420px;top:50px;right:-140px;filter:blur(24px);opacity:.62;animation:none}
 .home-platform main .hero:after{width:280px;height:250px;left:-70px;bottom:-100px;filter:blur(20px)}
 .home-platform main .hero .platform-hero-copy>.eyebrow{font-size:11px;padding:6px 11px}
 .home-platform main .hero .hero-trust{gap:6px}
 .home-platform main .hero .hero-trust>span{font-size:10px;padding:4px 7px}
 .home-platform main .capabilities:before{inset:60px 0 0}
 .home-platform main .feature-stage{border-radius:15px}
 .home-platform main .feature-tabs button{border-radius:8px}
 .home-platform main .reliable-card{padding:16px 12px}
 .public-site .public-hero:before{width:260px;height:240px;opacity:.7}
}
@media(prefers-reduced-motion:reduce){.home-platform main .hero:before{animation:none!important;transform:none!important}}
@media(forced-colors:active){
 .home-platform main .hero:before,.home-platform main .hero:after,.home-platform main .capabilities:before,.home-platform main .feature-stage:before,.public-site .public-hero:before{display:none}
 .home-platform main .feature-tabs button.is-active{border:2px solid Highlight}
}