:root{
  --zkp-ink:#172033;
  --zkp-muted:#667085;
  --zkp-border:#d9dee8;
  --zkp-soft:#f4f6f9;
  --zkp-surface:#ffffff;
  --zkp-navy:#162540;
  --zkp-primary:#2f5bd3;
  --zkp-primary-dark:#2349b5;
  --zkp-danger:#b42318;
  --zkp-success:#16794b;
  --zkp-shadow:0 16px 38px rgba(20,31,51,.10);
}

.zkp-library,.zkp-reader-shell,.zkp-auth-shell,.zkp-message{
  font-family:Inter,"Segoe UI",Arial,sans-serif;
  color:var(--zkp-ink);
  box-sizing:border-box;
}
.zkp-library *,.zkp-reader-shell *,.zkp-auth-shell *{box-sizing:border-box}
.zkp-icon{display:block;width:20px;height:20px;flex:0 0 auto}
.zkp-button{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 20px;border:1px solid var(--zkp-primary);
  border-radius:8px;background:var(--zkp-primary);color:#fff!important;
  text-decoration:none!important;font-size:15px;font-weight:700;
  box-shadow:none;cursor:pointer;transition:background .16s ease,border-color .16s ease,transform .16s ease;
}
.zkp-button:hover{background:var(--zkp-primary-dark);border-color:var(--zkp-primary-dark);transform:translateY(-1px)}
.zkp-button-block{width:100%}
.zkp-message{max-width:760px;margin:36px auto;padding:18px 20px;border:1px solid var(--zkp-border);border-radius:8px;background:#fff}
.zkp-message-error{border-color:#f0c4c0;background:#fff6f5;color:#912018}

/* Login and access */
.zkp-auth-shell{max-width:1380px;margin:0 auto;padding:56px 20px 72px}
.zkp-auth-card{max-width:650px;margin:0 auto;padding:48px 42px;border:1px solid var(--zkp-border);border-radius:14px;background:#fff;text-align:center;box-shadow:var(--zkp-shadow)}
.zkp-auth-brand{display:grid;place-items:center;width:54px;height:54px;margin:0 auto 20px;border-radius:11px;background:#edf2ff;color:var(--zkp-primary)}
.zkp-auth-brand .zkp-icon{width:28px;height:28px}
.zkp-auth-kicker{display:block;margin-bottom:10px;color:var(--zkp-primary);font-size:12px;font-weight:800;letter-spacing:.12em}
.zkp-auth-card h1{margin:0 0 12px;font-size:34px;line-height:1.18;letter-spacing:-.02em}
.zkp-auth-card p{max-width:520px;margin:0 auto 26px;color:var(--zkp-muted);font-size:16px;line-height:1.7}
.zkp-login-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);min-height:520px;overflow:hidden;border:1px solid var(--zkp-border);border-radius:14px;background:#fff;box-shadow:var(--zkp-shadow)}
.zkp-login-intro{display:flex;flex-direction:column;justify-content:center;padding:56px;background:var(--zkp-navy);color:#fff}
.zkp-login-intro .zkp-auth-kicker{color:#9db7ff}
.zkp-login-intro h1{max-width:600px;margin:0 0 18px;font-size:clamp(34px,4vw,50px);line-height:1.08;letter-spacing:-.035em;color:#fff}
.zkp-login-intro>p{max-width:590px;margin:0 0 30px;color:#c8d0dd;font-size:17px;line-height:1.7}
.zkp-login-intro ul{display:grid;gap:14px;margin:0;padding:0;list-style:none}
.zkp-login-intro li{display:flex;align-items:flex-start;gap:11px;color:#e9edf4;line-height:1.55}
.zkp-login-intro li .zkp-icon{width:19px;height:19px;margin-top:2px;color:#8fc5a8}
.zkp-login-intro-actions{margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.zkp-intro-register-cta{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:13px;width:min(100%,430px);min-height:66px;padding:10px 14px 10px 11px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.08);color:#fff;text-align:left;cursor:pointer;box-shadow:0 10px 28px rgba(0,0,0,.13);transition:transform .16s ease,background .16s ease,border-color .16s ease}
.zkp-intro-register-cta:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.13)}
.zkp-intro-register-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;background:#fff;color:var(--zkp-primary)}
.zkp-intro-register-icon .zkp-icon{width:21px;height:21px}
.zkp-intro-register-cta>span:nth-child(2){display:flex;min-width:0;flex-direction:column;gap:2px}
.zkp-intro-register-cta strong{font-size:15px;line-height:1.25;color:#fff}
.zkp-intro-register-cta small{color:#cbd4e5;font-size:12px;line-height:1.35}
.zkp-intro-register-cta>.zkp-icon{width:19px;height:19px;color:#b9c8e7}
.zkp-login-form-card{display:flex;flex-direction:column;justify-content:center;padding:48px 50px}
.zkp-login-form-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:30px}
.zkp-login-form-head .zkp-auth-brand{margin:0;flex:0 0 auto}
.zkp-login-form-head h2{margin:1px 0 6px;font-size:27px;letter-spacing:-.02em}
.zkp-login-form-head p{margin:0;color:var(--zkp-muted);font-size:14px;line-height:1.55}
.zkp-login-form{display:grid;gap:18px}
.zkp-login-form>label{display:grid;gap:7px}
.zkp-login-form>label>span{font-size:13px;font-weight:700;color:#344054}
.zkp-login-form input[type="text"],.zkp-login-form input[type="email"],.zkp-login-form input[type="password"]{
  width:100%;height:48px;padding:0 14px;border:1px solid #cbd2dd;border-radius:7px;
  background:#fff;color:var(--zkp-ink);font-size:15px;outline:none;box-shadow:none;
}
.zkp-login-form input:focus{border-color:var(--zkp-primary);box-shadow:0 0 0 3px rgba(47,91,211,.12)}
.zkp-login-options{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px}
.zkp-login-options a{color:var(--zkp-primary);font-weight:700;text-decoration:none}
.zkp-remember{display:flex!important;align-items:center;gap:8px!important;color:#475467;font-weight:600}
.zkp-remember input{width:17px;height:17px;margin:0;accent-color:var(--zkp-primary)}
.zkp-login-submit{width:100%;margin-top:2px}

.zkp-auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:28px;padding:5px;border:1px solid var(--zkp-border);border-radius:10px;background:#f7f9fc}
.zkp-auth-tab{appearance:none;border:0;border-radius:7px;background:transparent;padding:11px 14px;color:#667085;font:inherit;font-size:13px;font-weight:800;cursor:pointer}
.zkp-auth-tab.is-active{background:#fff;color:var(--zkp-primary);box-shadow:0 1px 4px rgba(16,24,40,.09)}
.zkp-auth-panel{display:none}.zkp-auth-panel.is-active{display:block}
.zkp-form-alert.is-success{border-color:#b9dfc8;background:#f2fbf5;color:#17643a}
.zkp-login-form small{margin-top:-2px;color:var(--zkp-muted);font-size:12px}
.zkp-register-note{margin:2px 0 0;color:var(--zkp-muted);font-size:12px;line-height:1.55}
.zkp-form-alert{margin:0 0 20px;padding:12px 14px;border:1px solid #f0c4c0;border-radius:7px;background:#fff5f4;color:#912018;font-size:14px;font-weight:650}

/* Library */
.zkp-library{max-width:1380px;margin:0 auto;padding:34px 20px 60px}
.zkp-library-hero{display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:190px;padding:38px 42px;border:1px solid var(--zkp-border);border-radius:14px;background:#fff;box-shadow:0 10px 28px rgba(23,32,51,.07)}
.zkp-eyebrow{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--zkp-primary)}
.zkp-library-hero h1{margin:8px 0 9px;font-size:clamp(30px,4vw,48px);line-height:1.08;letter-spacing:-.03em}
.zkp-library-hero p{max-width:700px;margin:0;color:var(--zkp-muted);font-size:16px;line-height:1.65}
.zkp-hero-mark{display:grid;place-items:center;flex:0 0 auto;width:88px;height:88px;border-radius:12px;background:#edf2ff;color:var(--zkp-primary)}
.zkp-hero-mark .zkp-icon{width:43px;height:43px}
.zkp-book-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:28px}
.zkp-book-card{overflow:hidden;border:1px solid var(--zkp-border);border-radius:12px;background:#fff;box-shadow:0 9px 24px rgba(23,32,51,.07);transition:transform .18s ease,box-shadow .18s ease}
.zkp-book-card:hover{transform:translateY(-3px);box-shadow:0 15px 32px rgba(23,32,51,.11)}
.zkp-cover{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--zkp-soft)}
.zkp-cover img{display:block;width:100%;height:100%;object-fit:cover}
.zkp-cover-placeholder{display:flex;height:100%;padding:28px;flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center;color:#32415d}
.zkp-cover-placeholder .zkp-icon{width:56px;height:56px;color:var(--zkp-primary)}
.zkp-cover-placeholder strong{font-size:21px}
.zkp-license-badge{position:absolute;top:13px;right:13px;padding:6px 10px;border-radius:6px;background:rgba(22,37,64,.91);color:#fff;font-size:11px;font-weight:750}
.zkp-book-body{padding:20px}
.zkp-book-body h2{margin:0 0 8px;font-size:20px;line-height:1.3}
.zkp-book-body p{min-height:42px;margin:0 0 18px;color:var(--zkp-muted);font-size:14px;line-height:1.5}
.zkp-empty{max-width:680px;margin:38px auto;padding:45px 30px;border:1px solid var(--zkp-border);border-radius:12px;background:#fff;text-align:center}
.zkp-empty-icon{display:grid;place-items:center;width:62px;height:62px;margin:0 auto 16px;border-radius:12px;background:#edf2ff;color:var(--zkp-primary)}
.zkp-empty-icon .zkp-icon{width:32px;height:32px}
.zkp-empty h2{margin:0 0 8px}.zkp-empty p{margin:0;color:var(--zkp-muted)}

/* Reader frame */
.zkp-reader-shell{
  --zkp-zoom:1;position:relative;display:flex;flex-direction:column;width:100%;min-height:760px;
  overflow:hidden;border:1px solid #cfd5df;border-radius:11px;background:#eef1f5;color:var(--zkp-ink);
  box-shadow:0 18px 45px rgba(20,31,51,.14)
}
.zkp-reader-shell:fullscreen{width:100vw;height:100vh;min-height:100vh;border:0;border-radius:0}
.zkp-reader-toolbar{position:relative;z-index:30;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;min-height:62px;padding:9px 14px;border-bottom:1px solid #d7dde6;background:#fff}
.zkp-reader-back{display:inline-flex;align-items:center;gap:8px;width:max-content;color:#293750!important;text-decoration:none!important;font-size:14px;font-weight:750}
.zkp-reader-back:hover{color:var(--zkp-primary)!important}
.zkp-reader-title{text-align:center;min-width:0}
.zkp-reader-title strong,.zkp-reader-title span{display:block}
.zkp-reader-title strong{max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px}
.zkp-reader-title span{margin-top:2px;color:#7b8494;font-size:11px}
.zkp-toolbar-actions{justify-self:end;display:flex;align-items:center;gap:6px}
.zkp-toolbar-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:40px;padding:0 11px;border:1px solid #d7dde6;border-radius:7px;background:#fff;color:#344054;font-size:13px;font-weight:700;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}
.zkp-toolbar-button:hover,.zkp-toolbar-button[aria-expanded="true"]{border-color:#aab7d1;background:#f4f6fa;color:var(--zkp-primary)}
.zkp-toolbar-button .zkp-icon{width:18px;height:18px}
.zkp-view-switch{display:flex;align-items:center;gap:3px;height:42px;padding:3px;border:1px solid #d8dee8;border-radius:10px;background:#f7f9fc;box-shadow:0 2px 7px rgba(30,45,72,.05)}
.zkp-view-switch-label{padding:0 6px 0 7px;color:#667085;font-size:10px;font-weight:850;letter-spacing:.04em;text-transform:uppercase}
.zkp-view-switch button{display:inline-flex;align-items:center;justify-content:center;gap:5px;height:34px;min-width:52px;padding:0 8px;border:0;border-radius:7px;background:transparent;color:#687386;font:inherit;font-size:11px;font-weight:800;cursor:pointer;transition:background .15s ease,color .15s ease,box-shadow .15s ease}
.zkp-view-switch button:hover:not(:disabled){background:#eef2f8;color:#2d4f89}
.zkp-view-switch button.is-active{background:#fff;color:#2858a5;box-shadow:0 1px 5px rgba(22,39,67,.12)}
.zkp-view-switch button:disabled{opacity:.45;cursor:not-allowed}
.zkp-view-switch .zkp-icon{width:18px;height:18px}
.zkp-reader-workspace{position:relative;display:flex;flex:1;min-height:610px;overflow:hidden}

/* Drawers */
.zkp-page-drawer,.zkp-smartboard-panel{position:absolute;z-index:24;top:0;bottom:0;left:0;width:min(330px,92vw);padding:15px;overflow-y:auto;border-right:1px solid #d7dde6;background:#fff;box-shadow:12px 0 25px rgba(20,31,51,.12);transform:translateX(-103%);transition:transform .22s ease}
.zkp-page-drawer[aria-hidden="false"],.zkp-smartboard-panel[aria-hidden="false"]{transform:translateX(0)}
.zkp-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:2px 1px 14px;border-bottom:1px solid #e8ebf0}
.zkp-panel-head>div{display:flex;flex-direction:column;gap:3px}
.zkp-panel-head strong{font-size:17px;line-height:1.3}
.zkp-panel-head span{color:var(--zkp-muted);font-size:12px;line-height:1.4}
.zkp-panel-head span[data-state="saving"]{color:#a15c00}.zkp-panel-head span[data-state="saved"]{color:var(--zkp-success)}.zkp-panel-head span[data-state="error"]{color:var(--zkp-danger)}
.zkp-panel-head>button{display:grid;place-items:center;flex:0 0 auto;width:34px;height:34px;padding:0;border:1px solid #d9dee8;border-radius:7px;background:#fff;color:#344054;cursor:pointer}
.zkp-panel-head>button:hover{background:#f2f4f7}.zkp-panel-head>button .zkp-icon{width:18px;height:18px}
.zkp-page-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;max-height:calc(100% - 62px);padding-top:14px;overflow:auto}
.zkp-page-jump{display:flex;min-height:78px;padding:7px;flex-direction:column;align-items:center;justify-content:center;gap:6px;border:1px solid #dfe3ea;border-radius:7px;background:#fff;color:#344054;cursor:pointer}
.zkp-page-jump:hover,.zkp-page-jump.is-current{border-color:#8fa6df;background:#f1f5ff;color:#2349b5}
.zkp-page-thumb{display:grid;place-items:center;width:34px;height:40px;border:1px solid #d8dee8;border-radius:3px;background:#f8fafc;font-size:12px;font-weight:800}
.zkp-page-jump strong{font-size:11px}

/* Tool panel */
.zkp-tool-section{padding:14px 0;border-bottom:1px solid #e8ebf0}.zkp-tool-section:last-child{border-bottom:0}
.zkp-tool-section-title{display:block;margin:0 0 9px;color:#667085;font-size:10px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.zkp-tool-grid{display:grid;gap:7px}.zkp-tool-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.zkp-tool-grid-5{grid-template-columns:repeat(5,minmax(0,1fr))}
.zkp-tool-button,.zkp-shape-button{min-width:0;border:1px solid #d8dee8;border-radius:7px;background:#fff;color:#344054;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}
.zkp-tool-button{display:flex;min-height:61px;padding:7px 3px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.zkp-tool-button .zkp-icon{width:21px;height:21px}.zkp-tool-button small{font-size:11px;font-weight:700}
.zkp-shape-button{display:grid;place-items:center;height:43px;padding:0}.zkp-shape-button .zkp-icon{width:21px;height:21px}
.zkp-tool-button:hover,.zkp-shape-button:hover{background:#f6f7f9;border-color:#b8c2d1}
.zkp-tool-button.is-active,.zkp-shape-button.is-active{border-color:#6d8ad7;background:#edf2ff;color:#2349b5;box-shadow:inset 0 0 0 1px #6d8ad7}
.zkp-color-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.zkp-color-dot{display:block;width:27px;height:27px;padding:0;border:3px solid #fff;border-radius:50%;background:var(--dot);box-shadow:0 0 0 1px #cfd5df;cursor:pointer}
.zkp-color-dot.is-active{box-shadow:0 0 0 2px var(--zkp-primary)}
.zkp-color-row input[type="color"]{width:36px;height:31px;padding:2px;border:1px solid #d5dae3;border-radius:6px;background:#fff;cursor:pointer}
.zkp-width-control{display:grid;grid-template-columns:auto 1fr 31px;align-items:center;gap:9px;margin-top:12px;color:#475467;font-size:12px;font-weight:700}
.zkp-width-control input{width:100%;accent-color:var(--zkp-primary)}
.zkp-width-control output{display:grid;place-items:center;height:27px;border-radius:5px;background:#f0f2f5}
.zkp-selection-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}
.zkp-selection-grid button,.zkp-tool-actions button{display:flex;align-items:center;justify-content:center;gap:6px;min-height:38px;border:1px solid #d8dee8;border-radius:7px;background:#fff;color:#344054;font-size:12px;font-weight:700;cursor:pointer}
.zkp-selection-grid button:hover,.zkp-tool-actions button:hover{background:#f4f6f8}.zkp-selection-grid button .zkp-icon,.zkp-tool-actions button .zkp-icon{width:17px;height:17px}
.zkp-selection-grid .is-danger,.zkp-tool-actions .is-danger{border-color:#efc8c4;color:var(--zkp-danger);background:#fff8f7}
.zkp-tool-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}.zkp-tool-actions .is-danger{grid-column:1/-1}.zkp-tool-actions button:disabled{opacity:.4;cursor:not-allowed}

/* Object library */
.zkp-object-library{position:absolute;z-index:28;left:50%;bottom:18px;width:min(760px,calc(100% - 32px));max-height:74%;padding:15px;overflow:auto;border:1px solid #cfd5df;border-radius:11px;background:#fff;box-shadow:0 20px 48px rgba(20,31,51,.20);transform:translate(-50%,calc(100% + 45px));opacity:0;pointer-events:none;transition:transform .22s ease,opacity .18s ease}
.zkp-object-library[aria-hidden="false"]{transform:translate(-50%,0);opacity:1;pointer-events:auto}
.zkp-object-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:8px;padding-top:13px}
.zkp-object-grid button{display:flex;min-width:0;min-height:84px;padding:8px 4px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid #dfe3ea;border-radius:7px;background:#fff;color:#344054;cursor:pointer;transition:background .15s ease,border-color .15s ease}
.zkp-object-grid button:hover{border-color:#9fb0d7;background:#f5f7fb}
.zkp-object-grid img{display:block;width:48px;height:48px;object-fit:contain}.zkp-object-grid small{font-size:11px;font-weight:700;white-space:nowrap}

/* Reader stage */
.zkp-reader-stage{position:relative;display:grid;grid-template-columns:64px minmax(0,1fr) 64px;align-items:center;flex:1;min-width:0;min-height:610px;padding:20px;background:#e8ecf2;overflow:hidden;touch-action:pan-y}
.zkp-nav-button{position:relative;z-index:40;display:grid;place-items:center;width:54px;height:86px;padding:0;border:1px solid #cbd2dd;border-radius:9px;background:#fff;color:#344054;cursor:pointer;box-shadow:0 6px 16px rgba(20,31,51,.10);transition:background .15s ease,border-color .15s ease,color .15s ease;pointer-events:auto!important;touch-action:manipulation;appearance:none!important;-webkit-appearance:none!important;line-height:1!important}
.zkp-nav-button .zkp-icon{width:28px;height:28px}.zkp-nav-button:hover:not(:disabled){border-color:#9aa8bc;background:#f8fafc;color:var(--zkp-primary)}.zkp-nav-button:disabled{opacity:.3;cursor:not-allowed}.zkp-nav-prev{justify-self:start}.zkp-nav-next{justify-self:end}
.zkp-book-viewport{position:relative;z-index:4;display:grid;place-items:center;min-width:0;min-height:550px;padding:14px;overflow:auto}
.zkp-book{position:relative;display:grid;grid-template-columns:1fr 1fr;width:min(1040px,calc(100% - 12px));aspect-ratio:1.44/1;max-height:580px;transform:scale(var(--zkp-zoom));transform-origin:center;transition:transform .18s ease;filter:drop-shadow(0 17px 22px rgba(20,31,51,.20));perspective:2200px}
.zkp-page{position:relative;min-width:0;height:100%;overflow:hidden;background:#fff}.zkp-page-left{border-radius:7px 1px 1px 7px;box-shadow:inset -12px 0 18px rgba(20,31,51,.06)}.zkp-page-right{border-radius:1px 7px 7px 1px;box-shadow:inset 12px 0 18px rgba(20,31,51,.06)}.zkp-page.is-blank{background:#f9fafb}
.zkp-page img,.zkp-flip-layer img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;user-select:none;-webkit-user-drag:none}.zkp-page.is-blank img{display:none}
.zkp-page-loading{position:absolute;inset:0;display:none;place-items:center;padding:20px;background:#f8fafc;color:#7b8494;font-size:13px;font-weight:700}.zkp-page.is-loading .zkp-page-loading{display:grid}.zkp-page.has-error:after{content:"Sayfa yüklenemedi";position:absolute;inset:0;display:grid;place-items:center;background:#fff5f4;color:#912018;font-weight:750}
.zkp-book-spine{position:absolute;z-index:10;top:0;bottom:0;left:50%;width:8px;transform:translateX(-50%);background:linear-gradient(90deg,rgba(20,31,51,.14),rgba(255,255,255,.45),rgba(20,31,51,.14));pointer-events:none}
.zkp-reader-shell.is-single-page-view .zkp-book{grid-template-columns:1fr;width:min(520px,calc(100% - 12px));aspect-ratio:.72/1;max-height:720px}
.zkp-reader-shell.is-single-page-view .zkp-page-left{display:none}
.zkp-reader-shell.is-single-page-view .zkp-page-right{grid-column:1;border-radius:7px;box-shadow:none}
.zkp-reader-shell.is-single-page-view .zkp-book-spine{display:none}
.zkp-reader-shell.is-single-page-view .zkp-flip-layer{width:100%}
.zkp-reader-shell.is-single-page-view .zkp-flip-layer.is-next,.zkp-reader-shell.is-single-page-view .zkp-flip-layer.is-prev{left:0;right:auto;border-radius:7px;transform-origin:left center}
.zkp-flip-layer{display:none;position:absolute;z-index:14;top:0;width:50%;height:100%;overflow:hidden;background:#fff;backface-visibility:hidden;transform-style:preserve-3d}.zkp-flip-layer.is-active{display:block}.zkp-flip-layer.is-next{right:0;border-radius:1px 7px 7px 1px;transform-origin:left center}.zkp-flip-layer.is-next.is-turning{transform:rotateY(-180deg);transition:transform .58s cubic-bezier(.45,.05,.2,1)}.zkp-flip-layer.is-prev{left:0;border-radius:7px 1px 1px 7px;transform-origin:right center}.zkp-flip-layer.is-prev.is-turning{transform:rotateY(180deg);transition:transform .58s cubic-bezier(.45,.05,.2,1)}
.zkp-visible-watermark{position:absolute;z-index:11;right:23px;bottom:22px;padding:5px 7px;border-radius:4px;background:rgba(22,37,64,.54);color:rgba(255,255,255,.9);font-size:10px;pointer-events:none;user-select:none}.zkp-visible-watermark.is-very_light{opacity:.18}.zkp-visible-watermark.is-light{opacity:.42}.zkp-visible-watermark.is-normal{opacity:1}

/* Clickable QR and PDF links */
.zkp-link-layer{position:absolute;z-index:12;inset:0;pointer-events:auto}.zkp-page.is-blank .zkp-link-layer{display:none}
.zkp-page-link{position:absolute;display:block;padding:0;border:1px dashed rgba(47,91,211,.30);border-radius:4px;background:rgba(47,91,211,.02);cursor:pointer;opacity:.3;transition:opacity .15s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease}
.zkp-page-link:hover,.zkp-page-link:focus-visible{opacity:1;border-color:var(--zkp-primary);background:rgba(47,91,211,.08);box-shadow:0 0 0 3px rgba(47,91,211,.12);outline:none}
.zkp-link-indicator{position:absolute;top:-13px;right:-13px;display:grid;place-items:center;width:28px;height:28px;border:2px solid #fff;border-radius:50%;background:var(--zkp-primary);color:#fff;box-shadow:0 4px 10px rgba(20,31,51,.18)}
.zkp-link-indicator svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.zkp-link-indicator svg path:last-child{fill:currentColor;stroke:none}
.zkp-page-link.is-qr{border-style:solid;border-color:rgba(47,91,211,.22)}
.zkp-reader-shell:not([data-active-tool="hand"]) .zkp-link-layer{pointer-events:none;opacity:.22}
.zkp-reader-shell.is-page-turning .zkp-link-layer{opacity:0;pointer-events:none}

/* Annotation layer */
.zkp-annotation-canvas{position:absolute;z-index:13;inset:0;display:block;width:100%;height:100%;background:transparent;pointer-events:none;touch-action:none;user-select:none;-webkit-user-select:none;transition:opacity .12s ease}.zkp-page.is-blank .zkp-annotation-canvas{display:none}.zkp-reader-shell.is-page-turning .zkp-annotation-canvas{opacity:0}

/* Reader footer controls */
.zkp-reader-controls{position:relative;z-index:20;display:grid;grid-template-columns:auto minmax(220px,620px) auto;align-items:center;gap:20px;min-height:58px;padding:9px 14px;border-top:1px solid #d7dde6;background:#fff}
.zkp-control-group{display:flex;align-items:center;gap:4px}.zkp-control-button{display:grid;place-items:center;min-width:36px;height:36px;padding:0 8px;border:1px solid #d7dde6;border-radius:6px;background:#fff;color:#344054;font-size:12px;font-weight:750;cursor:pointer}.zkp-control-button:hover{background:#f4f6f8}.zkp-control-button .zkp-icon{width:18px;height:18px}.zkp-zoom-value{min-width:53px}
.zkp-page-progress{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px}.zkp-page-progress span{min-width:105px;color:#475467;font-size:12px;font-weight:750}.zkp-page-progress input{width:100%;accent-color:var(--zkp-primary)}
.zkp-reader-security{display:flex;align-items:center;justify-content:flex-end;gap:7px;color:#667085;font-size:12px;font-weight:700}.zkp-reader-security .zkp-icon{width:16px;height:16px}
.zkp-reader-footer{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:8px 14px;border-top:1px solid #e2e6ed;background:#f8f9fb;color:#667085;font-size:11px}.zkp-reader-footer span{display:flex;align-items:center;gap:6px}.zkp-reader-footer .zkp-icon{width:14px;height:14px}

/* Media modal */
html.zkp-modal-open{overflow:hidden}
.zkp-media-modal{position:fixed;z-index:999999;inset:0;display:grid;place-items:center;padding:24px;opacity:0;visibility:hidden;transition:opacity .18s ease,visibility .18s ease}
.zkp-media-modal[aria-hidden="false"]{opacity:1;visibility:visible}
.zkp-media-backdrop{position:absolute;inset:0;background:rgba(10,18,31,.76);backdrop-filter:blur(2px)}
.zkp-media-dialog{position:relative;z-index:2;width:min(1100px,96vw);overflow:hidden;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:#fff;box-shadow:0 28px 70px rgba(0,0,0,.34)}
.zkp-media-dialog>header{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:62px;padding:10px 14px;border-bottom:1px solid #e0e4ea;background:#fff}.zkp-media-dialog>header>div:first-child{display:flex;flex-direction:column;gap:2px}.zkp-media-kicker{color:#667085;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.zkp-media-dialog strong{font-size:15px}
.zkp-media-actions{display:flex;align-items:center;gap:7px}.zkp-media-actions a,.zkp-media-actions button{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 10px;border:1px solid #d7dde6;border-radius:6px;background:#fff;color:#344054;text-decoration:none;font-size:12px;font-weight:700;cursor:pointer}.zkp-media-actions a:hover,.zkp-media-actions button:hover{background:#f3f5f8}.zkp-media-actions .zkp-icon{width:17px;height:17px}
.zkp-media-body{position:relative;width:100%;aspect-ratio:16/9;background:#0b1220}.zkp-media-frame{display:block;width:100%;height:100%;border:0;background:#0b1220}

/* Waiting screen */
.zkp-reader-stage.zkp-reader-waiting{display:grid;grid-template-columns:minmax(0,1fr);place-items:center;width:100%;min-width:0;padding:38px 24px}
.zkp-reader-placeholder{grid-column:1;width:min(620px,100%);margin:0 auto;padding:44px 34px;border:1px solid #d5dbe5;border-radius:10px;background:#fff;text-align:center;box-shadow:0 11px 26px rgba(20,31,51,.08)}
.zkp-reader-book-icon{display:grid;place-items:center;width:60px;height:60px;margin:0 auto 18px;border-radius:11px;background:#edf2ff;color:var(--zkp-primary)}.zkp-reader-book-icon .zkp-icon{width:31px;height:31px}
.zkp-reader-placeholder h2{margin:0 0 10px;font-size:27px}.zkp-reader-placeholder p{max-width:510px;margin:0 auto 18px;color:var(--zkp-muted);line-height:1.65}
.zkp-processing-state{max-width:510px;margin:0 auto 16px;padding:10px 13px;border:1px solid #dfe4eb;border-radius:7px;background:#f8fafc;color:var(--zkp-muted);font-size:13px;line-height:1.5;word-break:break-word}.zkp-process-admin-button{display:flex;width:max-content;max-width:100%;margin:18px auto 0}

@media(max-width:1240px){.zkp-view-switch-label{display:none}}
@media(max-width:1040px){.zkp-view-switch button{min-width:36px;width:36px;padding:0}.zkp-view-switch button span{display:none}}
@media(max-width:1100px){
  .zkp-login-layout{grid-template-columns:1fr 420px}.zkp-login-intro{padding:44px}.zkp-book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.zkp-object-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
}
@media(max-width:860px){
  .zkp-login-layout{grid-template-columns:1fr}.zkp-login-intro{padding:38px}.zkp-login-form-card{padding:38px}.zkp-book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:780px){
  .zkp-auth-shell{padding:28px 14px 50px}.zkp-auth-card{padding:38px 24px}.zkp-login-intro{display:none}.zkp-login-layout{display:block;min-height:0}.zkp-login-form-card{padding:34px 24px}
  .zkp-library{padding:18px 14px 40px}.zkp-library-hero{min-height:auto;padding:27px 23px}.zkp-hero-mark{display:none}
  .zkp-reader-shell{min-height:680px;border-radius:8px}.zkp-reader-toolbar{grid-template-columns:1fr auto;padding:8px 9px}.zkp-reader-title{display:none}.zkp-toolbar-button{width:40px;padding:0}.zkp-toolbar-button span{display:none}.zkp-reader-back span{display:none}
  .zkp-view-switch{display:none}
  .zkp-reader-workspace,.zkp-reader-stage{min-height:540px}.zkp-reader-stage{grid-template-columns:42px minmax(0,1fr) 42px;padding:8px 3px}.zkp-nav-button{width:37px;height:56px;border-radius:7px}.zkp-nav-button .zkp-icon{width:24px;height:24px}
  .zkp-book-viewport{min-height:500px;padding:8px 2px}.zkp-book{grid-template-columns:1fr;width:min(94%,430px);aspect-ratio:.72/1;max-height:500px}.zkp-page-left{display:none}.zkp-page-right{grid-column:1;border-radius:7px;box-shadow:none}.zkp-book-spine{display:none}.zkp-flip-layer{width:100%}.zkp-flip-layer.is-next,.zkp-flip-layer.is-prev{left:0;right:auto;border-radius:7px;transform-origin:left center}.zkp-visible-watermark{right:10px;bottom:10px}
  .zkp-reader-controls{grid-template-columns:1fr;padding:9px 11px}.zkp-control-group,.zkp-reader-security{display:none}.zkp-page-progress span{min-width:91px}.zkp-reader-footer{flex-direction:column;align-items:flex-start;gap:4px}.zkp-page-list{grid-template-columns:repeat(3,minmax(0,1fr))}
  .zkp-object-library{bottom:8px;width:calc(100% - 16px);max-height:68%;border-radius:9px}.zkp-object-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.zkp-media-modal{padding:10px}.zkp-media-actions a span{display:none}
}
@media(max-width:480px){
  .zkp-book-grid{grid-template-columns:1fr}.zkp-library-hero h1{font-size:31px}.zkp-login-form-head{display:block}.zkp-login-form-head .zkp-auth-brand{margin:0 0 16px}.zkp-login-options{align-items:flex-start;flex-direction:column;gap:10px}
  .zkp-reader-stage{grid-template-columns:34px minmax(0,1fr) 34px}.zkp-nav-button{width:31px;height:50px}.zkp-page-drawer,.zkp-smartboard-panel{width:94vw}.zkp-tool-grid-5{grid-template-columns:repeat(5,minmax(42px,1fr))}.zkp-object-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.zkp-media-dialog>header{padding:9px}.zkp-media-actions a{display:none}
}

/* Manual video hotspots */
.zkp-page-link.is-manual-hotspot{border:0;background:transparent;opacity:1}.zkp-page-link.is-manual-hotspot:hover,.zkp-page-link.is-manual-hotspot:focus-visible{border:0;background:transparent;box-shadow:none}.zkp-page-link.is-manual-hotspot.is-button{display:flex;align-items:center;justify-content:center;gap:7px;padding:5px 11px;border:1px solid rgba(20,31,51,.18);border-radius:7px;background:#fff;color:#17345f;box-shadow:0 4px 12px rgba(20,31,51,.16);font-family:inherit;font-size:clamp(9px,1.05vw,13px);font-weight:750;line-height:1.1;white-space:nowrap}.zkp-page-link.is-manual-hotspot.is-button:hover,.zkp-page-link.is-manual-hotspot.is-button:focus-visible{border-color:#2f5bd3;background:#f7f9ff;color:#2448a8;box-shadow:0 5px 16px rgba(20,31,51,.22)}.zkp-hotspot-button-icon{display:grid;place-items:center;width:20px;height:20px;flex:0 0 20px;border-radius:50%;background:#2f5bd3;color:#fff}.zkp-hotspot-button-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8}.zkp-page-link.is-content-video .zkp-hotspot-button-icon svg path:last-child{fill:currentColor;stroke:none}.zkp-hotspot-button-text{display:block;overflow:hidden;text-overflow:ellipsis}.zkp-page-link.is-manual-hotspot.is-icon .zkp-link-indicator{top:50%;right:auto;left:50%;width:34px;height:34px;transform:translate(-50%,-50%);border-width:2px}.zkp-page-link.is-manual-hotspot.is-invisible{border:0;background:transparent;opacity:0}.zkp-page-link.is-manual-hotspot.is-invisible:hover,.zkp-page-link.is-manual-hotspot.is-invisible:focus-visible{opacity:.22;border:1px dashed #2f5bd3;background:rgba(47,91,211,.08)}


/* v0.5.1 interaction hardening */
.zkp-page-link{pointer-events:auto!important;touch-action:manipulation!important;-webkit-tap-highlight-color:transparent}
.zkp-media-modal,.zkp-media-modal *{box-sizing:border-box;font-family:Inter,"Segoe UI",Arial,sans-serif}
.zkp-media-modal[aria-hidden="false"]{pointer-events:auto}.zkp-media-modal[aria-hidden="true"]{pointer-events:none}
.zkp-media-fallback{display:grid;place-items:center;min-height:260px;padding:34px;background:#0b1220;color:#fff;text-align:center}.zkp-media-fallback a{display:inline-flex;margin-top:16px;padding:10px 16px;border-radius:7px;background:#fff;color:#172033!important;text-decoration:none!important;font-weight:700}

/* v0.6.0 opening and sound experience */
.zkp-sound-button[aria-pressed="true"]{border-color:#e0b9b6;background:#fff6f5;color:#9f2d24}
.zkp-reader-intro{position:absolute;z-index:29;inset:62px 0 0;display:grid;place-items:center;padding:34px;overflow:hidden;background:radial-gradient(circle at 18% 18%,rgba(255,255,255,.95),rgba(239,244,255,.92) 36%,rgba(223,231,250,.96) 100%);opacity:1;visibility:visible;transition:opacity .42s ease,visibility .42s ease}
.zkp-reader-intro[aria-hidden="true"]{opacity:0;visibility:hidden;pointer-events:none}
.zkp-reader-intro.is-leaving{opacity:0;transform:scale(1.015)}
.zkp-reader-shell.is-intro-active .zkp-reader-workspace,.zkp-reader-shell.is-intro-active .zkp-reader-controls,.zkp-reader-shell.is-intro-active .zkp-reader-footer{filter:blur(3px);pointer-events:none}
.zkp-intro-card{position:relative;z-index:2;display:grid;grid-template-columns:minmax(210px,330px) minmax(340px,520px);align-items:center;gap:44px;width:min(940px,96%);padding:38px;border:1px solid rgba(54,75,117,.16);border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 26px 70px rgba(31,48,83,.18);backdrop-filter:blur(10px)}
.zkp-intro-cover{position:relative;display:grid;place-items:center;aspect-ratio:4/5;overflow:hidden;border-radius:16px;background:linear-gradient(145deg,#eef3ff,#dce6fb);box-shadow:0 18px 38px rgba(36,54,90,.18);transform:rotate(-1.2deg)}
.zkp-intro-cover:after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.58);border-radius:inherit;pointer-events:none}
.zkp-intro-cover img{display:block;width:100%;height:100%;object-fit:cover}
.zkp-intro-cover>span{display:grid;place-items:center;width:100px;height:100px;border-radius:24px;background:#fff;color:var(--zkp-primary);box-shadow:0 14px 30px rgba(47,91,211,.16)}
.zkp-intro-cover>span .zkp-icon{width:54px;height:54px}
.zkp-intro-copy{min-width:0}
.zkp-intro-kicker{display:block;margin-bottom:10px;color:var(--zkp-primary);font-size:12px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}
.zkp-intro-copy h2{margin:0 0 14px;color:#18243a;font-size:clamp(34px,4.1vw,58px);line-height:1.02;letter-spacing:-.045em}
.zkp-intro-copy p{max-width:520px;margin:0 0 26px;color:#5f6d83;font-size:17px;line-height:1.65}
.zkp-intro-open{display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:56px;padding:0 25px;border:0;border-radius:12px;background:#244fc2;color:#fff;font:inherit;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 13px 25px rgba(36,79,194,.26);transition:transform .16s ease,background .16s ease,box-shadow .16s ease}
.zkp-intro-open:hover{background:#1e43a8;transform:translateY(-2px);box-shadow:0 16px 29px rgba(36,79,194,.31)}
.zkp-intro-open:disabled{opacity:.72;cursor:wait}
.zkp-intro-open .zkp-icon{width:22px;height:22px}
.zkp-intro-copy small{display:flex;align-items:center;gap:8px;margin-top:15px;color:#7a8597;font-size:12px;line-height:1.45}
.zkp-intro-copy small .zkp-icon{width:16px;height:16px;color:#52678f}
.zkp-intro-sparkles{position:absolute;inset:0;pointer-events:none}
.zkp-intro-sparkles i{position:absolute;width:10px;height:10px;border-radius:50%;background:#f5b93d;box-shadow:0 0 0 6px rgba(245,185,61,.12);animation:zkpSparkle 3.8s ease-in-out infinite}
.zkp-intro-sparkles i:nth-child(1){left:8%;top:18%}.zkp-intro-sparkles i:nth-child(2){left:17%;bottom:14%;width:7px;height:7px;animation-delay:.7s;background:#58a7da}.zkp-intro-sparkles i:nth-child(3){right:10%;top:16%;width:8px;height:8px;animation-delay:1.1s;background:#ef7186}.zkp-intro-sparkles i:nth-child(4){right:17%;bottom:12%;animation-delay:1.7s;background:#79bd6b}.zkp-intro-sparkles i:nth-child(5){left:48%;top:8%;width:6px;height:6px;animation-delay:2.2s;background:#8f72db}.zkp-intro-sparkles i:nth-child(6){right:4%;top:48%;width:6px;height:6px;animation-delay:2.8s;background:#f5b93d}
@keyframes zkpSparkle{0%,100%{transform:scale(.7);opacity:.38}50%{transform:scale(1.25);opacity:1}}
.zkp-media-audio{position:absolute;left:50%;top:50%;width:min(680px,86%);height:54px;transform:translate(-50%,-50%);filter:drop-shadow(0 10px 18px rgba(0,0,0,.22))}
.zkp-page-link.is-content-audio.is-manual-hotspot.is-button .zkp-hotspot-button-icon,.zkp-page-link.is-content-audio .zkp-link-indicator{background:#6b46b5;border-color:#6b46b5}
.zkp-page-link.is-content-link.is-manual-hotspot.is-button .zkp-hotspot-button-icon,.zkp-page-link.is-content-link .zkp-link-indicator{background:#a64b16;border-color:#a64b16}
.zkp-page-link.is-content-audio.is-manual-hotspot.is-button:hover{border-color:#8061bd;color:#5b399e;background:#faf8ff}
.zkp-page-link.is-content-link.is-manual-hotspot.is-button:hover{border-color:#b86a3b;color:#8b3f13;background:#fffaf6}
.zkp-page-link.is-content-video .zkp-hotspot-button-icon svg path:last-child{fill:currentColor;stroke:none}
.zkp-page-link.is-content-audio .zkp-hotspot-button-icon svg path:last-child,.zkp-page-link.is-content-link .zkp-hotspot-button-icon svg path:last-child{fill:none;stroke:currentColor}

@media(max-width:780px){
  .zkp-reader-intro{inset:57px 0 0;padding:16px}.zkp-sound-button [data-zkp-sound-icon]{display:inline-grid}.zkp-intro-card{grid-template-columns:1fr;gap:22px;width:min(520px,100%);padding:24px;text-align:center}.zkp-intro-cover{width:min(180px,55vw);margin:0 auto}.zkp-intro-copy h2{font-size:36px}.zkp-intro-copy p{font-size:15px}.zkp-intro-open{width:100%}.zkp-intro-copy small{justify-content:center}.zkp-sound-button{display:inline-flex}
}
@media(prefers-reduced-motion:reduce){.zkp-intro-sparkles i{animation:none}.zkp-reader-intro,.zkp-intro-open{transition:none}}

/* v0.7.0 — presentations, clearer toolbar and fullscreen-safe media */
.zkp-toolbar-button{position:relative;min-height:42px;padding:0 13px;border-radius:9px;box-shadow:0 2px 7px rgba(30,45,72,.06)}
.zkp-toolbar-button .zkp-icon{width:19px;height:19px;padding:3px;border-radius:6px;box-sizing:content-box}
.zkp-toolbar-button>em{display:grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:currentColor;color:#fff;font-size:10px;font-style:normal;font-weight:850;line-height:1}
.zkp-toolbar-button.is-presentations{border-color:#d7c9f5;background:#f7f3ff;color:#6541ad}
.zkp-toolbar-button.is-presentations .zkp-icon{background:#e9defd;color:#6541ad}
.zkp-toolbar-button.is-presentations>em{background:#6541ad;color:#fff}
.zkp-toolbar-button.is-presentations:hover,.zkp-toolbar-button.is-presentations[aria-expanded="true"]{border-color:#a98bdc;background:#efe7ff;color:#52338f}
.zkp-toolbar-button.is-tools{border-color:#c9d9f7;background:#f3f7ff;color:#295aa5}
.zkp-toolbar-button.is-tools .zkp-icon{background:#dfebff;color:#295aa5}
.zkp-toolbar-button.is-tools:hover,.zkp-toolbar-button.is-tools[aria-expanded="true"]{border-color:#8fb0e9;background:#e9f1ff;color:#214b8a}
.zkp-toolbar-button.is-pages{border-color:#c8e2d2;background:#f2faf5;color:#287348}
.zkp-toolbar-button.is-pages .zkp-icon{background:#def1e6;color:#287348}
.zkp-toolbar-button.is-pages:hover,.zkp-toolbar-button.is-pages[aria-expanded="true"]{border-color:#8ec2a2;background:#e7f6ed;color:#205d3a}
.zkp-toolbar-button.is-sound{border-color:#ead9ae;background:#fffaf0;color:#8a5a10}
.zkp-toolbar-button.is-sound .zkp-icon{background:#f8ebc9;color:#8a5a10}
.zkp-toolbar-button.is-sound:hover{border-color:#d5b96f;background:#fff5dd;color:#714808}
.zkp-toolbar-button.is-fullscreen{border-color:#d4d9e2;background:#f7f8fa;color:#39465a}
.zkp-toolbar-button.is-fullscreen .zkp-icon{background:#e7eaf0;color:#39465a}
.zkp-toolbar-button.is-fullscreen:hover{border-color:#aeb8c8;background:#eef1f5;color:#263348}

.zkp-presentation-panel{position:absolute;z-index:25;top:0;bottom:0;left:0;width:min(410px,94vw);padding:15px;overflow-y:auto;border-right:1px solid #d7dde6;background:#fff;box-shadow:14px 0 30px rgba(20,31,51,.15);transform:translateX(-103%);transition:transform .22s ease}
.zkp-presentation-panel[aria-hidden="false"]{transform:translateX(0)}
.zkp-presentation-units{display:grid;gap:10px;padding-top:14px}
.zkp-presentation-unit{overflow:hidden;border:1px solid #dde3ec;border-radius:10px;background:#fff}
.zkp-presentation-unit-toggle{display:grid;grid-template-columns:minmax(0,1fr) auto 22px;align-items:center;gap:9px;width:100%;min-height:48px;padding:9px 11px;border:0;background:#f8fafc;color:#26354d;text-align:left;cursor:pointer}
.zkp-presentation-unit-toggle:hover{background:#f2f5fa}
.zkp-presentation-unit-toggle span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:800}
.zkp-presentation-unit-toggle em{display:grid;place-items:center;min-width:23px;height:23px;padding:0 6px;border-radius:12px;background:#e8e0fb;color:#5d3da2;font-size:11px;font-style:normal;font-weight:850}
.zkp-presentation-unit-toggle .zkp-icon{width:18px;height:18px;color:#748096;transition:transform .18s ease}
.zkp-presentation-unit.is-open .zkp-presentation-unit-toggle .zkp-icon{transform:rotate(90deg)}
.zkp-presentation-items{display:none;padding:7px;border-top:1px solid #e5e9f0;background:#fff}
.zkp-presentation-unit.is-open .zkp-presentation-items{display:grid;gap:6px}
.zkp-presentation-item{display:grid;grid-template-columns:42px minmax(0,1fr) 32px;align-items:center;gap:10px;width:100%;min-height:58px;padding:8px;border:1px solid transparent;border-radius:8px;background:#fff;color:#26354d;text-align:left;cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .15s ease}
.zkp-presentation-item:hover{border-color:#cad5e7;background:#f7f9fc;transform:translateY(-1px)}
.zkp-presentation-file-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:9px;background:#edf2ff;color:#315ea8}
.zkp-presentation-file-icon[data-file-type="ppt"],.zkp-presentation-file-icon[data-file-type="pptx"]{background:#fff0e7;color:#b34b1c}
.zkp-presentation-file-icon[data-file-type="doc"],.zkp-presentation-file-icon[data-file-type="docx"]{background:#eaf2ff;color:#245daa}
.zkp-presentation-file-icon[data-file-type="xls"],.zkp-presentation-file-icon[data-file-type="xlsx"]{background:#e9f7ef;color:#267145}
.zkp-presentation-file-icon[data-file-type="pdf"]{background:#fff0f0;color:#a73434}
.zkp-presentation-file-icon .zkp-icon{width:22px;height:22px}
.zkp-presentation-item-copy{display:flex;min-width:0;flex-direction:column;gap:3px}
.zkp-presentation-item-copy strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;line-height:1.25}
.zkp-presentation-item-copy small{color:#7a8596;font-size:10px;font-weight:750;letter-spacing:.04em}
.zkp-presentation-item-action{display:grid;place-items:center;width:30px;height:30px;border-radius:7px;background:#f0f3f7;color:#53627a}
.zkp-presentation-item-action .zkp-icon{width:17px;height:17px}

/* The modal must remain inside the fullscreen reader on Chromium/macOS. */
.zkp-reader-shell:fullscreen .zkp-media-modal,.zkp-reader-shell:-webkit-full-screen .zkp-media-modal{position:fixed;z-index:2147483646;inset:0;width:100%;height:100%}
.zkp-media-dialog:fullscreen,.zkp-media-dialog:-webkit-full-screen,.zkp-media-dialog.is-maximized{display:flex;flex-direction:column;width:100vw;height:100vh;max-width:none;border:0;border-radius:0;background:#fff}
.zkp-media-dialog:fullscreen::backdrop,.zkp-media-dialog:-webkit-full-screen::backdrop{background:#080d16}
.zkp-media-dialog:fullscreen .zkp-media-body,.zkp-media-dialog:-webkit-full-screen .zkp-media-body,.zkp-media-dialog.is-maximized .zkp-media-body{flex:1;height:auto;min-height:0;aspect-ratio:auto}
.zkp-media-actions [hidden]{display:none!important}
.zkp-media-modal[data-modal-type="presentation"] .zkp-media-body{height:min(78vh,900px);aspect-ratio:auto;background:#2b313c}
.zkp-document-frame{background:#4a4f59}
.zkp-office-file-card{display:grid;grid-template-columns:94px minmax(0,520px);align-items:center;justify-content:center;gap:25px;min-height:360px;padding:36px;background:linear-gradient(145deg,#f7f9fc,#eef2f7);color:#25334a;text-align:left}
.zkp-office-file-mark{display:grid;place-items:center;width:94px;height:112px;border:1px solid #ccd5e2;border-radius:12px;background:#fff;color:#345e9b;box-shadow:0 12px 28px rgba(35,50,77,.12);font-size:17px;font-weight:900;letter-spacing:.05em}
.zkp-office-file-card strong{display:block;margin-bottom:9px;font-size:22px;line-height:1.25}
.zkp-office-file-card p{max-width:500px;margin:0 0 20px;color:#66748a;font-size:14px;line-height:1.6}
.zkp-office-open-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:0 17px;border-radius:8px;background:#2d5da9;color:#fff!important;text-decoration:none!important;font-size:13px;font-weight:800;box-shadow:0 8px 18px rgba(45,93,169,.22)}
.zkp-office-open-button:hover{background:#244d8d;color:#fff!important}
.zkp-office-open-button .zkp-icon{width:18px;height:18px}

@media(max-width:780px){
  .zkp-toolbar-button>em{position:absolute;top:-5px;right:-5px;min-width:16px;height:16px;padding:0 4px;font-size:9px}
  .zkp-presentation-panel{width:94vw}
  .zkp-media-actions button span{display:none}
  .zkp-office-file-card{grid-template-columns:1fr;gap:17px;min-height:320px;padding:25px;text-align:center}
  .zkp-office-file-mark{width:74px;height:88px;margin:0 auto}
  .zkp-office-open-button{width:100%}
  .zkp-media-modal[data-modal-type="presentation"] .zkp-media-body{height:76vh}
}
.zkp-media-dialog{width:min(920px,90vw);max-height:90vh}
.zkp-media-dialog.is-maximized{max-height:none}

/* Gemini Storybook özel açılış paneli */
.zkp-media-modal[data-modal-type="gemini"] .zkp-media-body{display:grid;place-items:center;min-height:430px;aspect-ratio:auto;padding:32px;background:linear-gradient(135deg,#eef2ff 0%,#f8f5ff 46%,#eef8ff 100%)}
.zkp-gemini-storybook-card{display:grid;grid-template-columns:110px minmax(0,1fr);gap:26px;align-items:center;width:min(760px,100%);padding:34px;border:1px solid rgba(77,92,148,.16);border-radius:20px;background:rgba(255,255,255,.92);box-shadow:0 24px 70px rgba(44,56,96,.15)}
.zkp-gemini-storybook-mark{display:grid;place-items:center;width:104px;height:104px;border-radius:26px;background:linear-gradient(145deg,#edf3ff,#f4ecff);color:#4f5bd5;box-shadow:inset 0 0 0 1px rgba(79,91,213,.09)}
.zkp-gemini-storybook-mark .zkp-icon{width:54px;height:54px}
.zkp-gemini-storybook-copy{display:flex;flex-direction:column;align-items:flex-start;gap:10px;color:#26324a}
.zkp-gemini-storybook-badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eef1ff;color:#4b56b8;font-size:10px;font-weight:900;letter-spacing:.08em}
.zkp-gemini-storybook-copy>strong{font-size:24px;line-height:1.2;color:#1f2a44}
.zkp-gemini-storybook-copy p{max-width:610px;margin:0;color:#5b667a;font-size:14px;line-height:1.65}
.zkp-gemini-storybook-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:5px}
.zkp-gemini-storybook-actions a{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 16px;border-radius:10px;text-decoration:none!important;font-size:13px;font-weight:800}
.zkp-gemini-storybook-actions .zkp-icon{width:18px;height:18px}
.zkp-gemini-primary{background:#263a8b;color:#fff!important;box-shadow:0 10px 24px rgba(38,58,139,.2)}
.zkp-gemini-primary:hover{background:#1f317c;color:#fff!important}
.zkp-gemini-secondary{border:1px solid #d5daea;background:#fff;color:#344054!important}
.zkp-gemini-secondary:hover{background:#f7f8fb;color:#344054!important}
.zkp-gemini-storybook-copy small{display:block;max-width:610px;margin-top:4px;color:#7a8497;font-size:11px;line-height:1.5}
@media (max-width:680px){.zkp-media-modal[data-modal-type="gemini"] .zkp-media-body{min-height:420px;padding:18px}.zkp-gemini-storybook-card{grid-template-columns:1fr;padding:24px;text-align:center}.zkp-gemini-storybook-mark{width:82px;height:82px;margin:0 auto}.zkp-gemini-storybook-copy{align-items:center}.zkp-gemini-storybook-copy>strong{font-size:20px}.zkp-gemini-storybook-actions{justify-content:center}}

/* v0.8.4 — Ek kaynaklar / materyaller ve kitap sıfırlama */
.zkp-presentation-file-icon[data-file-type="mp4"],.zkp-presentation-file-icon[data-file-type="webm"]{background:#efeafe;color:#6842bd}
.zkp-presentation-file-icon[data-file-type="mp3"],.zkp-presentation-file-icon[data-file-type="wav"]{background:#fff5df;color:#9b6615}
.zkp-presentation-file-icon[data-file-type="jpg"],.zkp-presentation-file-icon[data-file-type="jpeg"],.zkp-presentation-file-icon[data-file-type="png"]{background:#eaf8f4;color:#24745e}
.zkp-presentation-file-icon[data-file-type="url"]{background:#eef4ff;color:#315ea8}
.zkp-material-video{display:block;width:min(1120px,100%);max-height:72vh;margin:auto;background:#0d1420;border-radius:12px}
.zkp-material-audio{display:block;width:min(760px,calc(100% - 40px));margin:auto}
.zkp-material-image{display:block;max-width:100%;max-height:72vh;margin:auto;object-fit:contain;border-radius:10px}
.zkp-office-file-card.is-view-only{border-color:#f0d4a9;background:#fffaf2}
.zkp-tool-actions .is-reset-all{grid-column:1/-1;min-height:44px;border-color:#e8b7b1;background:#fff4f2;color:#a52b21}
.zkp-tool-actions .is-reset-all:hover{background:#fee9e6}
.zkp-tool-actions .is-reset-all:disabled{opacity:.55;cursor:wait}
@media(max-width:1080px){.zkp-toolbar-button.is-presentations span{max-width:92px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}