/* TurnPages – site styles. Fonts: Manrope (OFL), Amethysta (OFL) – self-hosted, no external requests. */
@font-face{font-family:"Manrope";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/manrope-cyrillic-400-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Manrope";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/manrope-cyrillic-500-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Manrope";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/manrope-cyrillic-600-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Manrope";font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/manrope-cyrillic-700-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Manrope";font-style:normal;font-weight:800;font-display:swap;src:url(../fonts/manrope-cyrillic-800-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Manrope";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/manrope-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Manrope";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/manrope-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Manrope";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/manrope-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Manrope";font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/manrope-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Manrope";font-style:normal;font-weight:800;font-display:swap;src:url(../fonts/manrope-latin-ext-800-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Manrope";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/manrope-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Manrope";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/manrope-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Manrope";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/manrope-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Manrope";font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/manrope-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Manrope";font-style:normal;font-weight:800;font-display:swap;src:url(../fonts/manrope-latin-800-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Amethysta";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/amethysta-regular.woff2) format("woff2")}

:root{
  --navy:#0f2a5f;
  --blue:#1c4d9c;
  --blue-soft:#e8eefb;
  --red:#cc0000;
  --red-soft:#fdeaea;
  --ink:#172033;
  --ink-2:#4a5568;
  --ink-3:#7b8798;
  --line:#e3e8f0;
  --bg:#ffffff;
  --bg-soft:#f4f6fb;
  --radius:18px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(15,42,95,.08);
  --shadow-lg:0 30px 60px rgba(15,42,95,.16);
  --max:1180px;
  --gutter:clamp(16px,4vw,32px);
  --font:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-brand:"Amethysta",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em;color:var(--navy)}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 12px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.small{font-size:.875rem;color:var(--ink-2)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin:0 0 .8em}
.section-dark .eyebrow{color:#ff9d9d}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--ink-2);max-width:40rem}
.section-intro{font-size:1.08rem;color:var(--ink-2);max-width:46rem}
.section{padding:clamp(56px,8vw,104px) 0}
.section-soft{background:var(--bg-soft)}
.section-dark{background:linear-gradient(160deg,var(--navy),#163a7e 60%,#1c4d9c);color:#dbe4f6}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark .section-intro{color:#c6d3ee}
.section-head{margin-bottom:clamp(28px,4vw,48px);max-width:52rem}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.9em 1.5em;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;font-size:1rem;line-height:1.1;transition:transform .15s,box-shadow .15s,background .15s;min-height:48px}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 8px 20px rgba(204,0,0,.25)}
.btn-primary:hover{background:#b30000;box-shadow:0 10px 24px rgba(204,0,0,.32)}
.btn-ghost{background:transparent;color:var(--navy);border-color:#c9d4ea}
.btn-ghost:hover{background:var(--blue-soft);border-color:var(--blue)}
.btn-sm{padding:.65em 1.1em;font-size:.92rem;min-height:40px}
.link-arrow{font-weight:700;text-decoration:none;color:var(--blue);display:inline-flex;align-items:center;gap:.35em}
.link-arrow::after{content:"→";transition:transform .15s}
.link-arrow:hover::after{transform:translateX(3px)}
.link-arrow.back::after{content:none}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.brand-mark svg{display:block}
.brand-text{font-family:var(--font-brand);font-size:1.7rem;letter-spacing:-.01em;line-height:1}
.brand-text .b1{color:var(--blue)}
.brand-text .b1.light{color:#fff}
.brand-text .b2{color:var(--red)}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{color:var(--ink);text-decoration:none;font-weight:600;padding:8px 12px;border-radius:8px;font-size:.95rem}
.main-nav a:hover{background:var(--blue-soft);color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.main-nav + .header-actions{margin-left:0}
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font:inherit;font-weight:700;font-size:.85rem;cursor:pointer;color:var(--ink);min-height:40px}
.lang-btn:hover{border-color:var(--blue)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);list-style:none;margin:0;padding:8px;min-width:190px;display:none;max-height:min(70vh,420px);overflow:auto;z-index:60}
.lang.open .lang-menu{display:block}
.lang-menu a{display:block;padding:9px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem}
.lang-menu a:hover{background:var(--blue-soft);color:var(--blue)}
.lang-menu a[aria-current="page"]{background:var(--navy);color:#fff}
.burger{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;padding:0 10px;border-radius:8px}
.burger span{display:block;height:2px;background:var(--navy);border-radius:2px;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;padding:clamp(40px,7vw,96px) 0 clamp(32px,5vw,72px);overflow:hidden;background:
  radial-gradient(900px 500px at 85% 10%,rgba(28,77,156,.10),transparent 60%),
  radial-gradient(600px 400px at 10% 90%,rgba(204,0,0,.06),transparent 60%),#fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,5vw,64px);align-items:center}
.hero-copy h1{margin-bottom:.4em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 20px}
.hero-badges{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--ink-2);font-size:.92rem;font-weight:600}
.hero-badges li{display:inline-flex;align-items:center;gap:6px}
.hero-badges svg{color:#15a05a}
.hero-visual{position:relative}
.hero-visual::before{content:"";position:absolute;inset:10% 0 4% 8%;background:radial-gradient(closest-side,rgba(28,77,156,.16),rgba(28,77,156,0));z-index:0}
.hero-visual img{position:relative;z-index:1;filter:drop-shadow(0 24px 40px rgba(15,42,95,.18))}

/* stats */
.stats{background:var(--navy);color:#fff;padding:28px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-value{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;line-height:1.05;letter-spacing:-.02em}
.stat-label{font-size:.9rem;color:#b9c7e6;margin-top:4px}

/* cards */
.cards{display:grid;gap:22px}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.solution-code{display:inline-block;align-self:flex-start;font-weight:800;font-size:.85rem;letter-spacing:.1em;color:var(--blue);background:var(--blue-soft);padding:6px 12px;border-radius:999px;margin-bottom:16px}
.solution:nth-child(2) .solution-code{color:#0a7a52;background:#e3f6ee}
.solution:nth-child(3) .solution-code{color:var(--red);background:var(--red-soft)}
.solution .tagline{font-weight:700;color:var(--ink)}
.checks{list-style:none;padding:0;margin:0 0 18px}
.checks li{position:relative;padding-left:26px;margin:6px 0;color:var(--ink-2)}
.checks li::before{content:"";position:absolute;left:0;top:.5em;width:16px;height:16px;border-radius:50%;background:#15a05a url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/10px no-repeat}
.solution .link-arrow{margin-top:auto}

/* education */
.edu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.edu-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px;backdrop-filter:blur(4px)}
.edu-item p{color:#c6d3ee;margin:0}
.icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;background:var(--blue-soft);color:var(--blue)}
.icon svg{width:26px;height:26px}
.edu-item .icon{background:rgba(255,255,255,.12);color:#fff}

/* features */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{padding:4px 0}
.feature p{color:var(--ink-2);margin:0;font-size:.95rem}
.feature h3{font-size:1.08rem}

/* references */
.covers{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cover{display:block;text-decoration:none;color:var(--ink);background:#fff;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
a.cover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cover img{width:100%;aspect-ratio:4/5;object-fit:cover}
.cover-name{display:block;font-weight:700;padding:10px 12px 0;font-size:.95rem}
.cover-kind{display:block;font-size:.8rem;color:var(--ink-3);padding:0 12px 12px}
.hint{color:var(--ink-3);font-size:.85rem;margin:12px 0 0}
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.case{background:#fff;border-left:4px solid var(--red);border-radius:var(--radius-sm);padding:24px;box-shadow:var(--shadow)}
.case-kind{font-size:.82rem;font-weight:700;color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em}
.case p:last-of-type{margin-bottom:0;color:var(--ink-2)}
.designs-title{margin-top:52px}
.designs{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.design{margin:0;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}

/* steps */
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{position:relative;background:var(--bg-soft);border-radius:var(--radius);padding:28px 28px 28px 28px}
.step-num{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--red);color:#fff;font-weight:800;font-size:1.1rem;margin-bottom:14px}
.step p{color:var(--ink-2);margin:0}

/* specs */
.specs{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.spec{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px}
.spec summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--navy)}
.spec summary::-webkit-details-marker{display:none}
.spec summary::after{content:"+";font-size:1.4rem;color:var(--blue);line-height:1}
.spec[open] summary::after{content:"–"}
.spec ul{margin:0 0 16px;padding-left:20px;color:var(--ink-2)}
.spec li{margin:4px 0}
.partners{margin-top:44px;padding-top:36px;border-top:1px solid var(--line)}
.partners p{color:var(--ink-2);max-width:60rem}
.partner-list{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.partner-list li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-weight:600;font-size:.88rem;color:var(--ink-2)}

/* contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,64px);align-items:start}
.direct{margin-top:32px;padding:24px;border-radius:var(--radius);background:var(--bg-soft)}
.direct h3{font-size:1rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.direct a{text-decoration:none;font-weight:600}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,3vw,32px);box-shadow:var(--shadow-lg);position:relative}
.hp{position:absolute;left:-9999px;top:-9999px;height:0;overflow:hidden}
.type-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.type-tab{cursor:pointer}
.type-tab input{position:absolute;opacity:0;pointer-events:none}
.type-tab span{display:inline-block;padding:9px 16px;border-radius:999px;border:2px solid var(--line);font-weight:700;font-size:.92rem;color:var(--ink-2);transition:all .15s}
.type-tab input:checked + span{background:var(--navy);border-color:var(--navy);color:#fff}
.type-tab input:focus-visible + span{outline:3px solid var(--blue-soft)}
.type-hint{font-size:.9rem;color:var(--ink-3);margin:0 0 18px}
.form-row{margin-bottom:14px}
.form-row.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-row label{display:block}
.form-row label > span{display:block;font-size:.85rem;font-weight:700;margin-bottom:6px;color:var(--ink-2)}
.form-row input[type=text],.form-row input[type=email],.form-row input[type=tel],.form-row select,.form-row textarea{width:100%;font:inherit;font-size:1rem;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);min-height:48px}
.form-row textarea{resize:vertical;min-height:120px}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}
.form-row .invalid{border-color:var(--red)!important}
.consent{display:flex!important;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--ink-2)}
.consent input{margin-top:4px;width:18px;height:18px;flex:none}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:8px}
.form-msg{margin:0;font-size:.9rem;color:var(--red);font-weight:600}
.form-msg.ok{color:#0a7a52}
.form-success{text-align:center;padding:24px 8px 8px}
.form-success .icon{margin:0 auto 14px;background:#e3f6ee;color:#0a7a52;width:64px;height:64px;border-radius:50%}
.form-success .icon svg{width:34px;height:34px}
.contact-form.sent > :not(.form-success){display:none}
.contact-form.sent .form-success{display:block}

/* footer */
.site-footer{background:#0b1f47;color:#b9c7e6;padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:6px 0;font-size:.95rem}
.site-footer a{color:#dbe4f6;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-langs{columns:2}
.footer-langs a[aria-current]{color:#fff;font-weight:700}
.footer-brand p{margin-top:14px;max-width:26rem}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;font-size:.88rem}
.footer-bottom p{margin:0}
.page-privacy .footer-bottom{border-top:0;margin-top:0;padding-top:0}

/* prose */
.prose{max-width:46rem}
.prose h1{margin-top:16px}
.prose h2{font-size:1.3rem;margin-top:1.8em}
.prose p{color:var(--ink-2)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:1100px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .covers{grid-template-columns:repeat(3,1fr)}
  .designs{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:960px){
  .main-nav + .header-actions{margin-left:auto}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:12px var(--gutter) 18px;gap:2px;box-shadow:var(--shadow-lg)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 10px;font-size:1.05rem}
  .burger{display:flex}
  .header-cta{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{max-width:560px;margin:0 auto}
  .cards-3,.edu-grid,.cases,.steps{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .cards-3,.edu-grid,.cases,.steps,.feature-grid,.specs,.form-row.two,.footer-grid{grid-template-columns:1fr}
  .covers{grid-template-columns:repeat(2,1fr);gap:12px}
  .designs{grid-template-columns:1fr}
  .hero{padding-top:28px}
  .hero-cta .btn{width:100%}
  .brand-text{font-size:1.5rem}
  .header-inner{min-height:60px;gap:10px}
  .lang-btn span{display:inline}
  .type-tab span{padding:8px 12px;font-size:.85rem}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:380px){
  .header-inner{gap:6px}
  .header-actions{gap:6px}
  .lang-btn{padding:8px}
  .brand-mark svg{width:30px;height:30px}
  .stats-grid{grid-template-columns:1fr}
  .covers{grid-template-columns:1fr 1fr}
}

/* guard against long words on narrow screens */
.cards>*,.cases>*,.edu-grid>*,.feature-grid>*,.steps>*,.specs>*,.footer-grid>*,.contact-grid>*,.hero-grid>*{min-width:0}
h1,h2,h3,p,li,.case-kind,.cover-kind{overflow-wrap:break-word}
.case-kind{overflow-wrap:anywhere}
.link-arrow{max-width:100%;overflow-wrap:anywhere;flex-wrap:wrap}