:root{
  --primary:#3559d6;
  --primary-dark:#2149d8;
  --green:#71bf59;
  --orange:#ff9f2e;
  --ink:#25334a;
  --muted:#69758a;
  --cream:#fffaf1;
  --footer-height:48px;
  --page-font-size:16px;
  --page-background-image:none;
  --card-shadow:0 12px 30px rgba(63,78,109,.12);
}
*{box-sizing:border-box}
html{min-height:100%;font-size:var(--page-font-size)}
body{
  margin:0;min-height:100vh;padding-bottom:calc(var(--footer-height) + 24px);
  font-family:"Nunito",sans-serif;color:var(--ink);overflow-x:hidden;
  background:
    linear-gradient(rgba(255,250,241,.93),rgba(255,250,241,.93)),
    var(--page-background-image);
  background-color:var(--cream);background-position:center;background-size:cover;background-attachment:fixed
}
body::before,body::after{
  content:"";position:fixed;z-index:-2;border-radius:50%;filter:blur(1px);pointer-events:none
}
body::before{
  width:420px;height:420px;left:-155px;bottom:-165px;
  background:rgba(194,225,139,.36);box-shadow:230px 70px 0 rgba(233,244,178,.35)
}
body::after{
  width:380px;height:380px;right:-145px;bottom:-155px;
  background:rgba(255,213,159,.30);box-shadow:-210px 85px 0 rgba(208,232,166,.28)
}
a,button{-webkit-tap-highlight-color:transparent}
button{font:inherit}
img{display:block;max-width:100%}

/* HEADER */
.catalog-header{padding:20px 28px 4px}
.catalog-header__inner{
  width:min(94%,1240px);min-height:82px;margin:0 auto;position:relative;
  display:flex;align-items:center;justify-content:center
}
.platform-brand{
  display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:inherit;max-width:660px
}
.platform-logo-shell{
  width:66px;height:66px;flex:0 0 66px;display:grid;place-items:center;
  border-radius:19px
}
.platform-logo{grid-area:1/1;width:100%;height:100%;object-fit:contain}
.platform-logo[src=""],.platform-logo.is-missing{display:none}
.platform-logo-fallback{
  grid-area:1/1;width:100%;height:100%;display:grid;place-items:center;color:var(--primary);font-size:2rem
}
.platform-logo:not([src=""]):not(.is-missing)+.platform-logo-fallback{display:none}
.platform-brand-text{
  max-width:530px;color:#20304a;font-size:clamp(1rem,1.8vw,1.35rem);font-weight:900;line-height:1.18
}
.accessibility-trigger{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  min-height:48px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border:1px solid rgba(53,89,214,.10);border-radius:16px;background:rgba(255,255,255,.96);
  color:var(--primary);box-shadow:0 8px 24px rgba(53,89,214,.11);cursor:pointer;font-weight:900;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease
}
.accessibility-trigger:hover{transform:translateY(calc(-50% - 2px));background:#f2f5ff;box-shadow:0 12px 28px rgba(53,89,214,.16)}
.ui-icon-slot{
  width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;line-height:1
}
.ui-icon-slot img{width:100%;height:100%;object-fit:contain}

/* HERO */
.catalog-main{width:min(94%,1280px);margin:0 auto;padding:16px 0 34px}
.hero-section{text-align:center;margin:10px auto 24px}
.hero-section h1{
  margin:0;font-family:"Fredoka",sans-serif;font-size:clamp(3rem,6.2vw,5.2rem);line-height:.98;font-weight:700;letter-spacing:-.035em
}
.hero-title__orange{color:var(--orange)}
.hero-title__green{color:var(--green)}
.hero-section p{
  margin:12px 0 0;color:#5f6c81;font-size:clamp(1rem,1.7vw,1.18rem);font-weight:800
}

/* 7 CARDS: 4 + 3 */
.classes-grid{
  width:100%;max-width:1160px;margin:0 auto;
  display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:22px 18px
}
.class-card{
  --card-bg:#b9eaf3;--card-accent:#2d8bd4;--card-button:#ecf6ff;
  grid-column:span 2;position:relative;min-width:0;min-height:286px;padding:17px 17px 16px;
  display:flex;flex-direction:column;align-items:stretch;overflow:hidden;
  border:7px solid rgba(255,255,255,.95);border-radius:25px;
  background:var(--card-bg);color:inherit;text-decoration:none;
  box-shadow:var(--card-shadow);cursor:pointer;
  transition:transform .28s cubic-bezier(.2,.9,.3,1),box-shadow .25s ease
}
.class-card:nth-child(5){grid-column:2/span 2}
.class-card:nth-child(6){grid-column:4/span 2}
.class-card:nth-child(7){grid-column:6/span 2}
.class-card:hover{transform:translateY(-7px);box-shadow:0 18px 38px rgba(63,78,109,.18)}
.class-card:active{transform:translateY(-2px) scale(.985)}

/* Sinf nomi — kartaning asosiy identifikatori */
.class-card__title{
  align-self:center;margin:0 0 8px;padding:7px 17px 8px;
  border:1px solid rgba(255,255,255,.62);border-radius:999px;
  background:rgba(255,255,255,.95);color:var(--card-accent);
  box-shadow:0 5px 14px rgba(45,65,95,.08),inset 0 1px 0 rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
  font-family:"Fredoka",sans-serif;font-size:clamp(1.55rem,2.15vw,1.9rem);
  line-height:1;font-weight:700;letter-spacing:-.015em;text-align:center
}

/* Rasm — markazdagi asosiy vizual element */
.class-card__body{
  flex:1;min-height:174px;display:flex;align-items:center;justify-content:center;padding:0 4px 4px
}
.class-image-wrap{
  width:100%;height:154px;display:flex;align-items:center;justify-content:center;position:relative
}
.class-image{
  width:100%;height:100%;object-fit:contain;
  filter:drop-shadow(0 11px 11px rgba(73,77,99,.14));
  transition:transform .25s ease
}
.class-card:hover .class-image{transform:translateY(-4px) scale(1.045)}
.class-image.is-missing{display:none}
.class-image-fallback{
  display:none;align-items:center;justify-content:center;width:112px;height:112px;border-radius:30px;
  background:rgba(255,255,255,.56);color:var(--card-accent);
  font-family:"Fredoka",sans-serif;font-size:2.1rem;font-weight:700
}
.class-image-wrap.has-image-error .class-image-fallback{display:flex}

.start-button{
  width:100%;min-height:46px;margin-top:5px;display:flex;align-items:center;justify-content:center;gap:9px;
  border-radius:14px;background:rgba(255,255,255,.84);color:var(--card-accent);font-weight:900;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.52),0 4px 10px rgba(45,65,95,.05);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease
}
.class-card:hover .start-button{background:#fff;transform:translateY(-1px);box-shadow:0 6px 14px rgba(45,65,95,.09)}
.start-icon-slot{
  width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto
}
.start-icon-slot img{width:100%;height:100%;object-fit:contain}
.start-icon-fallback{width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:10px solid currentColor}

.class-card[data-grade="1"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="2"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="3"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="4"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="5"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="6"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}
.class-card[data-grade="7"]{--card-bg:#9ed9ee;--card-accent:#2b82d7}

/* FOOTER */
.platform-footer{
  position:fixed;left:0;right:0;bottom:0;z-index:900;min-height:var(--footer-height);
  display:flex;align-items:center;justify-content:center;border-top:1px solid rgba(86,102,129,.08);
  background:rgba(255,255,255,.88);backdrop-filter:blur(10px);color:#8a93a1;font-size:.84rem
}
.platform-footer p{margin:0;padding:10px 14px}

/* TOAST */
.catalog-toast{
  position:fixed;left:50%;bottom:70px;z-index:1300;width:min(92%,460px);padding:14px 18px;
  border:1px solid #d9e4ff;border-radius:17px;color:#27427e;background:rgba(255,255,255,.98);
  box-shadow:0 16px 34px rgba(15,23,42,.15);text-align:center;font-size:.92rem;font-weight:800;
  opacity:0;visibility:hidden;transform:translate(-50%,16px);transition:opacity .24s ease,transform .24s ease,visibility .24s ease
}
.catalog-toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* ACCESSIBILITY */
.drawer-backdrop{position:fixed;inset:0;z-index:1400;background:rgba(15,23,42,.45);backdrop-filter:blur(2px)}
.accessibility-drawer{
  position:fixed;top:0;right:0;z-index:1500;width:min(420px,100%);height:100vh;display:flex;flex-direction:column;
  background:#fff;box-shadow:-18px 0 40px rgba(15,23,42,.15);transform:translateX(100%);transition:transform .28s ease
}
.accessibility-drawer.open{transform:translateX(0)}
.accessibility-drawer__header,.accessibility-drawer__footer{padding:18px 20px;border-bottom:1px solid #e5e7eb}
.accessibility-drawer__header{display:flex;align-items:center;justify-content:space-between}
.accessibility-drawer__footer{margin-top:auto;border-top:1px solid #e5e7eb;border-bottom:none;background:#f8fafc}
.accessibility-drawer__body{padding:20px;overflow-y:auto}
.drawer-title{display:flex;align-items:center;gap:10px;margin:0;color:#0f172a;font-size:1.1rem;font-weight:800}
.drawer-close{width:40px;height:40px;border:none;border-radius:12px;background:#f1f5f9;color:#334155;cursor:pointer}
.acc-section{margin-bottom:24px}
.section-label{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:#334155;font-weight:800}
.theme-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.theme-btn{
  padding:14px 12px;display:flex;flex-direction:column;align-items:center;gap:8px;border:1px solid #e2e8f0;
  border-radius:16px;background:#fff;color:#334155;cursor:pointer;font-weight:700;transition:all .25s ease
}
.theme-btn:hover,.theme-btn.active{color:#2149d8;background:#eef3ff;border-color:rgba(33,73,216,.18);box-shadow:0 8px 18px rgba(33,73,216,.08)}
.theme-symbol{font-size:1.15rem}
input[type="range"]{width:100%;accent-color:var(--primary);cursor:pointer}
.range-meta{display:flex;align-items:center;justify-content:space-between;margin-top:10px;color:#64748b;font-size:.85rem}
.indicator-badge{padding:6px 10px;border-radius:999px;background:var(--primary);color:#fff;font-size:.76rem;font-weight:800}
.voice-settings{margin-bottom:18px;padding:16px;border:1px solid #e2e8f0;border-radius:18px;background:#f8fafc}
.voice-settings__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.voice-settings__top h3{margin:0;display:flex;align-items:center;gap:8px;font-size:1rem;font-weight:800}
.mini-help{width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#dbeafe;color:#1d4ed8;font-weight:800}
.switch-row{margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:14px;font-weight:700}
.switch-row input{width:20px;height:20px;accent-color:var(--primary)}
.voice-type-selector{display:flex;flex-wrap:wrap;gap:10px}
.voice-type-selector input{display:none}
.voice-type-selector label{padding:10px 14px;border:1px solid #cbd5e1;border-radius:999px;color:#334155;cursor:pointer;font-size:.9rem;font-weight:700}
.voice-type-selector input:checked+label{color:#2149d8;background:#eef3ff;border-color:#bfdbfe}
.reading-mode-btn,.reset-btn{
  width:100%;padding:14px 16px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border:none;border-radius:16px;cursor:pointer;font-weight:800
}
.reading-mode-btn{color:#2149d8;background:#eef3ff}
.reset-btn{color:#475569;background:#fff;border:1px solid #dbe2ea}
body.theme-grayscale{filter:grayscale(100%)}
body.theme-inverted{color:#f8fafc;background:#111827;filter:invert(1) hue-rotate(180deg)}
body.no-images img:not(.platform-logo){opacity:0!important;visibility:hidden!important}
body.reading-mode{background-image:none;background-color:#fffdf5}
body.reading-mode .class-card,body.reading-mode .platform-footer,body.reading-mode .catalog-header{box-shadow:none!important}

.class-card:focus-visible,.accessibility-trigger:focus-visible,.drawer-close:focus-visible,.theme-btn:focus-visible,.reading-mode-btn:focus-visible,.reset-btn:focus-visible{
  outline:4px solid rgba(255,190,67,.85);outline-offset:3px
}

@media(max-width:1000px){
  .catalog-header__inner{justify-content:flex-start;padding-right:68px}
  .platform-brand-text{font-size:1rem}
  .accessibility-trigger{width:50px;padding:0}.accessibility-trigger__text{display:none}
  .classes-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .class-card{grid-column:span 2}
  .class-card:nth-child(5),.class-card:nth-child(6){grid-column:span 2}
  .class-card:nth-child(7){grid-column:3/span 2}
}
@media(max-width:700px){
  .catalog-header{padding:14px 14px 0}
  .catalog-header__inner{min-height:70px;padding-right:58px}
  .platform-logo-shell{width:54px;height:54px;flex-basis:54px}
  .platform-brand-text{font-size:.92rem;max-width:330px}
  .accessibility-trigger{right:0;width:46px;height:46px;min-height:46px}
  .catalog-main{padding-top:8px}
  .hero-section{margin-bottom:20px}.hero-section h1{font-size:clamp(2.6rem,12vw,4rem)}
  .classes-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .class-card,.class-card:nth-child(5),.class-card:nth-child(6),.class-card:nth-child(7){grid-column:auto;min-height:250px;padding:14px 14px 13px}
  .class-card:nth-child(7){grid-column:1/-1;width:calc(50% - 7px);justify-self:center}
  .class-card__title{margin-bottom:5px;padding:6px 14px 7px;font-size:1.52rem}
  .class-card__body{min-height:156px;padding-bottom:2px}
  .class-image-wrap{height:132px}
  .start-button{min-height:44px;margin-top:4px}
  .theme-grid{grid-template-columns:1fr}.accessibility-drawer{width:100%}
}
@media(max-width:450px){
  .platform-brand-text{max-width:235px;font-size:.82rem}
  .hero-section h1{font-size:2.75rem}.hero-section p{font-size:.9rem}
  .classes-grid{grid-template-columns:1fr}
  .class-card,.class-card:nth-child(5),.class-card:nth-child(6),.class-card:nth-child(7){grid-column:auto;width:100%;min-height:224px;padding:13px 14px}
  .class-card__title{margin-bottom:4px;padding:6px 15px 7px;font-size:1.58rem}
  .class-card__body{min-height:140px;padding-bottom:0}
  .class-image-wrap{height:116px}
  .start-button{min-height:43px;margin-top:4px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}


/* =========================================================
   V7 — 100% ZOOM / DESKTOP FIRST-VIEW FIT
   Maqsad:
   - 100% browser zoomda 7 ta sinf cardini birinchi ekranda ko‘rsatish;
   - 4 + 3 gridni saqlash;
   - browser zoomni sun’iy ravishda o‘zgartirmaslik;
   - karta va rasmlarni haddan tashqari kichraytirmaslik;
   - 1000px dan kichik ekranlarda avvalgi responsive logika ishlashda davom etadi.
   ========================================================= */
@media (min-width:1001px){

  :root{
    --footer-height:42px;
  }

  body{
    padding-bottom:var(--footer-height);
  }

  /* Brand qismi ixcham, lekin premium va o‘qilishi oson qoladi. */
  .catalog-header{
    padding:8px 26px 0;
  }

  .catalog-header__inner{
    width:min(92%,1160px);
    min-height:62px;
  }

  .platform-brand{
    gap:10px;
  }

  .platform-logo-shell{
    width:52px;
    height:52px;
    flex:0 0 52px;
    border-radius:15px;
  }

  .platform-brand-text{
    max-width:560px;
    font-size:clamp(.98rem,1.25vw,1.14rem);
    line-height:1.15;
  }

  /* Hero birinchi ekran vizual ierarxiyasini saqlaydi,
     ammo vertikal joyni ortiqcha egallamaydi. */
  .catalog-main{
    width:min(92%,1180px);
    margin:0 auto;
    padding:4px 0 12px;
  }

  .hero-section{
    margin:3px auto 14px;
  }

  .hero-section h1{
    font-size:clamp(3rem,4.6vw,4.25rem);
    line-height:.94;
    letter-spacing:-.04em;
  }

  .hero-section p{
    margin-top:7px;
    font-size:clamp(.9rem,1.15vw,1.02rem);
    line-height:1.2;
  }

  /* Viewport balandligiga moslashadigan ikki qator.
     Tall monitorlarda ham cardlar ortiqcha cho‘zilmaydi. */
  .classes-grid{
    width:100%;
    max-width:1100px;
    height:clamp(430px,calc(100dvh - 220px),510px);
    margin:0 auto;
    grid-template-columns:repeat(8,minmax(0,1fr));
    grid-template-rows:repeat(2,minmax(0,1fr));
    column-gap:16px;
    row-gap:14px;
    align-items:stretch;
  }

  .class-card{
    min-height:0;
    height:100%;
    padding:11px 12px 11px;
    border-width:6px;
    border-radius:22px;
  }

  .class-card:hover{
    transform:translateY(-5px);
  }

  .class-card__title{
    margin-bottom:5px;
    padding:5px 14px 6px;
    font-size:clamp(1.28rem,1.45vw,1.48rem);
    line-height:1;
  }

  .class-card__body{
    flex:1;
    min-height:0;
    padding:0 3px 2px;
  }

  .class-image-wrap{
    width:100%;
    height:clamp(96px,12.5dvh,122px);
  }

  .class-image{
    filter:drop-shadow(0 8px 9px rgba(73,77,99,.13));
  }

  .class-card:hover .class-image{
    transform:translateY(-3px) scale(1.035);
  }

  .start-button{
    min-height:39px;
    margin-top:3px;
    gap:8px;
    border-radius:12px;
    font-size:.9rem;
  }

  .start-icon-slot{
    width:16px;
    height:16px;
  }

  .start-icon-fallback{
    border-top-width:5px;
    border-bottom-width:5px;
    border-left-width:8px;
  }

  .platform-footer{
    min-height:var(--footer-height);
    font-size:.78rem;
  }

  .platform-footer p{
    padding:7px 12px;
  }
}

/* O‘rtacha balandlikdagi desktop/laptoplar.
   1366×768, 1440×900 kabi ekranlarda birinchi ekranga sig‘ishni
   yanada kafolatlaydi. Faqat vertikal spacing siqiladi. */
@media (min-width:1001px) and (max-height:820px){

  .catalog-header{
    padding-top:5px;
  }

  .catalog-header__inner{
    min-height:56px;
  }

  .platform-logo-shell{
    width:47px;
    height:47px;
    flex-basis:47px;
  }

  .catalog-main{
    padding-top:2px;
    padding-bottom:8px;
  }

  .hero-section{
    margin-top:1px;
    margin-bottom:10px;
  }

  .hero-section h1{
    font-size:clamp(2.65rem,4vw,3.55rem);
  }

  .hero-section p{
    margin-top:5px;
    font-size:.88rem;
  }

  .classes-grid{
    height:clamp(398px,calc(100dvh - 190px),470px);
    row-gap:11px;
  }

  .class-card{
    padding-top:9px;
    padding-bottom:9px;
  }

  .class-card__title{
    padding-top:4px;
    padding-bottom:5px;
    font-size:1.22rem;
  }

  .class-image-wrap{
    height:clamp(82px,11.5dvh,104px);
  }

  .start-button{
    min-height:36px;
    font-size:.84rem;
  }
}

/* Juda past desktop viewportlarda scrollsiz sig‘ishga yaqinlashamiz,
   ammo elementlar user-friendly minimal chegaradan pastga tushmaydi. */
@media (min-width:1001px) and (max-height:700px){

  :root{
    --footer-height:38px;
  }

  .catalog-header__inner{
    min-height:50px;
  }

  .platform-logo-shell{
    width:42px;
    height:42px;
    flex-basis:42px;
  }

  .hero-section{
    margin-bottom:8px;
  }

  .hero-section h1{
    font-size:2.45rem;
  }

  .hero-section p{
    font-size:.82rem;
  }

  .classes-grid{
    height:calc(100dvh - 165px);
    min-height:360px;
    row-gap:9px;
  }

  .class-card{
    padding:8px 10px;
    border-width:5px;
  }

  .class-image-wrap{
    height:78px;
  }

  .start-button{
    min-height:34px;
  }
}