:root{
  --bg:#FAF7F0;
  --text:#1F2933;
  --muted:#5C6673;
  --brand:#3F5F4A;
  --brand-dark:#2F4638;
  --gold:#C9A86A;
  --box:#F3E8D0;
  --source:#F7EFE2;
  --source-text:#2A2420;
  --white:#FFFDF8;
  --max:720px;
  --radius:22px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans Hebrew",system-ui,sans-serif;font-size:20px;line-height:1.85}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}

.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px clamp(18px,4vw,48px);background:rgba(250,247,240,.95);backdrop-filter:blur(8px);border-bottom:1px solid rgba(63,95,74,.16)}
.brand{display:flex;flex-direction:column;text-decoration:none}
.brand-title{font-family:"Frank Ruhl Libre",serif;font-weight:700;font-size:26px;color:var(--brand-dark);line-height:1.1}
.brand-subtitle{font-size:14px;color:var(--muted);line-height:1.35}
.main-nav{display:flex;gap:18px;align-items:center;font-size:17px}
.main-nav a{padding:4px 0;border-bottom:2px solid transparent}
.main-nav a.active{border-color:var(--gold);font-weight:700}
.menu-toggle{display:none;border:1px solid rgba(63,95,74,.25);background:var(--white);border-radius:999px;padding:7px 14px;font:inherit;font-size:16px;color:var(--brand-dark)}

.page{width:min(1100px,100%);margin:0 auto;padding:72px 24px}
.narrow-page{max-width:var(--max)}
.hero{max-width:760px;margin-inline:auto;text-align:center;padding-block:44px}
.eyebrow{font-size:17px;color:var(--brand);font-weight:700}
.hero h1,.page h1,.lesson-article h1{font-family:"Frank Ruhl Libre",serif;line-height:1.15;color:var(--brand-dark)}
.hero h1{font-size:clamp(42px,7vw,72px);margin:.2em 0}
.page h1,.lesson-article h1{font-size:clamp(34px,5vw,46px);margin:.15em 0 .7em}
.lead{font-size:24px;line-height:1.7;color:#344054}
.lead.small{font-size:21px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  line-height:1.35;
  border-radius:999px;
  padding:12px 22px;
  font-weight:700;
}
.button.primary{background:var(--brand-dark);color:white}
.button.secondary{background:var(--box);color:var(--brand-dark)}

.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.card,.lesson-row{background:var(--white);border:1px solid rgba(63,95,74,.14);border-radius:var(--radius);padding:22px;box-shadow:0 10px 30px rgba(31,41,51,.06);text-decoration:none}
.card{display:flex;flex-direction:column;gap:8px}
.card span{font-size:17px;color:var(--muted);line-height:1.55}
.lesson-list{display:grid;gap:14px}
.lesson-row{display:grid;grid-template-columns:72px 1fr;gap:8px 18px;align-items:center}
.lesson-number{grid-row:span 2;display:grid;place-items:center;background:var(--source);border-radius:18px;font-weight:700;color:var(--brand-dark);min-height:64px}
.lesson-title{font-weight:700;font-size:22px}
.lesson-desc{font-size:17px;color:var(--muted)}

.lesson-layout{display:grid;grid-template-columns:minmax(180px,250px) minmax(0,var(--max));gap:52px;justify-content:center;align-items:start;padding:44px 24px 72px}
.lesson-toc{position:sticky;top:104px;font-size:16px}
.lesson-toc details{background:var(--white);border:1px solid rgba(63,95,74,.16);border-radius:18px;padding:14px}
.lesson-toc summary{cursor:pointer;font-weight:700;color:var(--brand-dark)}
.lesson-toc nav{display:flex;flex-direction:column;gap:4px;margin-top:10px}
.lesson-toc a{padding:6px 2px;color:var(--muted);border-radius:10px}
.lesson-toc a.is-active{color:var(--brand-dark);font-weight:700;background:rgba(201,168,106,.20);padding-inline:8px;text-decoration:none}

.lesson-article{min-width:0;background:var(--white);padding:clamp(24px,5vw,54px);border-radius:28px;box-shadow:0 14px 50px rgba(31,41,51,.08)}
.lesson-kicker{font-weight:700;color:var(--brand);margin:0}
.lesson-article h1{scroll-margin-top:130px}
.lesson-section{scroll-margin-top:130px;margin-top:38px}
.lesson-section h2{font-family:"Frank Ruhl Libre",serif;color:var(--brand-dark);font-size:clamp(26px,4vw,32px);line-height:1.25;margin:0 0 14px;border-top:1px solid rgba(201,168,106,.45);padding-top:28px}
.lesson-article p{margin:0 0 1.05em}
.source-quote{margin:26px 0;padding:22px 26px;background:var(--source);border-right:5px solid var(--gold);border-radius:18px;color:var(--source-text);font-family:"Frank Ruhl Libre",serif;font-size:24px;line-height:2}
.source-quote p{margin:.15em 0}
.question{background:var(--bg);border-radius:16px;padding:12px 16px}
.question span{font-weight:700;color:var(--brand)}

/* פוגשים את הדף */
.daf-card{
  background:var(--bg);
  border:1px solid rgba(201,168,106,.55);
  border-radius:20px;
  padding:18px;
  margin:10px 0 28px;
}

.daf-card figure{
  margin:0;
}

.daf-display{
  position:relative;
  width:100%;
  overflow:hidden;
  border-radius:14px;
  background:#eee;
  border:1px solid rgba(63,95,74,.14);
}

.daf-image-display img{
  display:block;
  width:100%;
  height:auto;
}

.daf-pdf-display{
  height:min(78vh,860px);
  min-height:620px;
}

.daf-pdf-display iframe{
  display:block;
  width:100%;
  height:100%;
  border:0;
  background:#fff;
}

.daf-marks-layer{
  position:absolute;
  inset:0;
  pointer-events:none;
  z-index:2;
}

.daf-mark{
  position:absolute;
  display:block;
  background:rgba(201,168,106,.32);
  border:1px solid rgba(201,168,106,.46);
  border-radius:4px;
  box-shadow:0 0 0 1px rgba(255,255,255,.18) inset;
}

.daf-card figcaption{
  margin-top:10px;
  font-size:16px;
  color:var(--muted);
  line-height:1.6;
  text-align:center;
}

.daf-card .missing-note{
  display:none;
  font-size:16px;
  color:var(--muted);
  margin:0;
}

.daf-card.is-missing .daf-display,
.daf-card.is-missing picture,
.daf-card.is-missing figcaption{
  display:none;
}

.daf-card.is-missing .missing-note{
  display:block;
}

.lesson-signup{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  margin:42px 0 0;
  padding:22px;
  background:var(--bg);
  border:1px solid rgba(201,168,106,.55);
  border-radius:20px;
}

.lesson-signup strong{
  color:var(--brand-dark);
  font-size:21px;
  line-height:1.45;
}

.lesson-signup span{
  color:var(--muted);
  font-size:17px;
  line-height:1.6;
}

.lesson-signup .button{
  margin-top:4px;
}

.lesson-bottom-nav{display:flex;justify-content:space-between;gap:16px;margin-top:42px;padding-top:22px;border-top:1px solid rgba(63,95,74,.16);font-size:17px}
.lesson-bottom-nav span{color:var(--muted)}
.plain-list{padding-inline-start:1.3em}
.site-footer{text-align:center;padding:28px 20px;color:var(--muted);font-size:15px;border-top:1px solid rgba(63,95,74,.12)}
.site-footer p{margin:.2em 0}
.site-footer p:not(:first-child){display:none}

/* Brand icon in the site header, using the existing favicon/app icon */
.brand{
  position:relative;
  padding-inline-start:46px;
  min-height:42px;
  justify-content:center;
}

.brand::before{
  content:"";
  position:absolute;
  inset-inline-start:0;
  top:50%;
  width:36px;
  height:36px;
  transform:translateY(-50%);
  border-radius:12px;
  background:url("/assets/icons/icon-192.png") center/cover no-repeat;
  box-shadow:0 4px 14px rgba(31,41,51,.08);
}

/* סימון השלמת שיעור */
.lesson-completion{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  margin-top:42px;
  padding:22px;
  background:var(--source);
  border:1px solid rgba(201,168,106,.65);
  border-radius:20px;
}

.lesson-completion strong{
  color:var(--brand-dark);
  font-size:21px;
  line-height:1.45;
}

.lesson-complete-button{
  margin-top:4px;
  border:0;
  background:var(--brand-dark);
  color:#fff;
  cursor:pointer;
  font:inherit;
}

.lesson-complete-button:hover{
  text-decoration:none;
  background:var(--brand);
}

.lesson-complete-button:focus-visible{
  outline:3px solid rgba(201,168,106,.65);
  outline-offset:3px;
}

.lesson-completion.is-complete .lesson-complete-button{
  background:var(--box);
  color:var(--brand-dark);
  cursor:default;
}

.lesson-completion-status{
  min-height:1.5em;
  margin:0;
  color:var(--brand-dark);
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}

.lesson-completion-note{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.55;
}

/* חלון שינוי נקודת ההמשך */
.lesson-progress-dialog{
  width:min(520px,calc(100% - 28px));
  padding:0;
  border:0;
  border-radius:22px;
  background:var(--white);
  color:var(--text);
  box-shadow:0 24px 80px rgba(31,41,51,.28);
}

.lesson-progress-dialog::backdrop{
  background:rgba(31,41,51,.46);
}

.lesson-progress-dialog form{
  padding:26px;
}

.lesson-progress-dialog h2{
  margin:0 0 14px;
  padding:0;
  border:0;
  color:var(--brand-dark);
  font-family:"Frank Ruhl Libre",serif;
  font-size:28px;
  line-height:1.3;
}

.lesson-progress-dialog p{
  margin:0 0 22px;
  line-height:1.7;
}

.lesson-progress-dialog-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.lesson-progress-dialog button{
  border:0;
  cursor:pointer;
  font:inherit;
}

/* כפתור ההמשך בדף רשימת השיעורים */
.series-progress{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:8px;
  margin:28px 0 34px;
  padding:20px;
  background:var(--source);
  border:1px solid rgba(201,168,106,.55);
  border-radius:20px;
}

.series-progress-button{
  min-width:min(100%,280px);
}

.series-progress-note{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.5;
}

@media (max-width:850px){
  body{font-size:19px;line-height:1.82}

  .site-header{
    align-items:center;
    gap:8px;
    padding:12px 10px;
  }

  .brand{
    flex:1;
    min-width:0;
  }

  .brand-title{
    white-space:nowrap;
    font-size:20px;
    line-height:1;
  }

  .menu-toggle{
    display:block;
    flex:0 0 auto;
    padding:6px 11px;
    font-size:15px;
  }

  .main-nav{display:none;position:absolute;inset-inline:16px;top:76px;flex-direction:column;align-items:stretch;background:var(--white);border:1px solid rgba(63,95,74,.16);border-radius:20px;padding:14px;box-shadow:0 12px 40px rgba(31,41,51,.12)}
  .main-nav.is-open{display:flex}
  .brand-subtitle{display:none}
  .brand{
    padding-inline-start:42px;
    min-height:38px;
  }
  .brand::before{
    width:32px;
    height:32px;
    border-radius:10px;
  }

  .cards-grid{grid-template-columns:1fr}
  .lesson-layout{display:block;padding:20px 14px 48px}
  .lesson-article{padding:24px 18px 76px;border-radius:22px}
  .lesson-article h1{scroll-margin-top:96px}
  .lesson-section{scroll-margin-top:96px}

  .lesson-signup{
    margin-top:36px;
    padding:18px;
  }

  .lesson-completion{
    margin-top:36px;
    padding:18px;
  }

  .lesson-complete-button{
    width:100%;
  }

  .lesson-progress-dialog-actions{
    flex-direction:column;
  }

  .lesson-progress-dialog-actions .button{
    width:100%;
  }

  .series-progress{
    padding:18px;
  }

  .series-progress-button{
    width:100%;
  }

  .daf-card{
    margin:8px -6px 26px;
    padding:10px;
    border-radius:18px;
  }

  .daf-display{
    border-radius:12px;
  }

  .daf-pdf-display{
    height:72vh;
    min-height:520px;
  }

  .daf-card figcaption{
    font-size:15px;
    line-height:1.55;
    padding-inline:4px;
  }

  /*
    Mobile lesson navigation:
    - closed state: a small "ניווט" button near the top header
    - open state: right-side drawer
    - no automatic open on lesson load
  */
  .lesson-toc{
    position:fixed;
    inset:0;
    z-index:60;
    margin:0;
    font-size:16px;
    pointer-events:none;
  }

  .lesson-toc::before{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(31,41,51,.28);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease;
  }

  .lesson-toc.is-open{
    pointer-events:auto;
  }

  .lesson-toc.is-open::before{
    opacity:1;
    pointer-events:auto;
  }

  .lesson-toc details{
    pointer-events:none;
    padding:0;
    margin:0;
    border:0;
    background:transparent;
    box-shadow:none;
    overflow:visible;
  }

  .lesson-toc details:not([open]){
    position:fixed;
    inset-inline-end:76px;
    top:12px;
    width:max-content;
    max-width:calc(100vw - 120px);
    z-index:75;
  }

  .lesson-toc details:not([open]) summary{
    pointer-events:auto;
    display:flex;
    align-items:center;
    gap:9px;
    min-height:44px;
    padding:10px 14px;
    border:1px solid rgba(63,95,74,.20);
    border-radius:999px;
    background:rgba(255,253,248,.98);
    box-shadow:0 10px 32px rgba(31,41,51,.20);
    color:var(--brand-dark);
    font-weight:700;
    list-style:none;
  }

  .lesson-toc summary::-webkit-details-marker{display:none}

  .lesson-toc details:not([open]) summary::after{
    content:"☰";
    font-size:17px;
    line-height:1;
    color:var(--brand);
  }

  .lesson-toc details[open]{
    position:fixed;
    inset-block:0;
    inset-inline-start:0;
    width:min(84vw,320px);
    max-width:calc(100vw - 40px);
    pointer-events:auto;
    background:var(--white);
    border-inline-end:1px solid rgba(63,95,74,.16);
    box-shadow:-12px 0 36px rgba(31,41,51,.18);
    transform:translateX(0);
    overflow:hidden;
  }

  .lesson-toc details[open] summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:18px 18px 14px;
    border-bottom:1px solid rgba(63,95,74,.14);
    list-style:none;
    color:var(--brand-dark);
    font-weight:700;
  }

  .lesson-toc details[open] summary::after{
    content:"×";
    display:grid;
    place-items:center;
    width:32px;
    height:32px;
    border-radius:999px;
    background:var(--box);
    color:var(--brand-dark);
    font-size:24px;
    line-height:1;
    font-weight:400;
  }

  .lesson-toc nav{
    max-height:calc(100vh - 74px);
    overflow:auto;
    padding:10px 14px 18px;
    margin-top:0;
    gap:2px;
  }

  .lesson-toc a{
    display:block;
    padding:9px 10px;
    color:var(--muted);
    border-radius:12px;
    line-height:1.45;
  }

  .lesson-toc a.is-active{
    background:rgba(201,168,106,.26);
    color:var(--brand-dark);
    font-weight:700;
    text-decoration:none;
  }

  .source-quote{font-size:22px;padding:18px}
  .lesson-bottom-nav{flex-direction:column}
  .lesson-row{grid-template-columns:58px 1fr}
  .lesson-number{min-height:58px}
  .hero{text-align:right}
  .hero-actions{justify-content:flex-start}
}

@media (max-width:520px){
  .daf-pdf-display{
    height:68vh;
    min-height:440px;
  }
}