/* ==========================================================================
   CSS VARIABLES & BORDEAUX ALABASTER DESIGN (VULIGAH.ICU)
   ========================================================================== */
:root {
    --c-bordeaux: #7f1d1d; /* Red 900 */
    --c-bordeaux-light: #991b1b; /* Red 800 */
    --c-terra: #ea580c; /* Orange 600 */
    --c-alabaster: #f5f5f4; /* Stone 100 */
    --c-dark: #1c1917; /* Stone 900 */
    --c-text: #57534e; /* Stone 600 */
    --c-white: #ffffff;
    --c-line: #d6d3d1; /* Stone 300 */

    --p-safe: clamp(15px, 5vw, 30px);
    --p-sec: clamp(80px, 10vw, 130px);
    
    --rad-sm: 6px;
    --rad-md: 16px;
    --rad-arch: 200px 200px 12px 12px;
    
    --shadow-soft: 0 10px 30px rgba(127, 29, 29, 0.05);
    --shadow-hard: 10px 10px 0 rgba(127, 29, 29, 0.1);
    --trans: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    background-color: var(--c-alabaster);
    color: var(--c-text);
    line-height: 1.65;
    overflow-x: hidden;
}

h1, h2, h3, h4 { color: var(--c-dark); font-weight: 800; line-height: 1.15; margin-bottom: 1rem; }
h1 { font-size: clamp(2.8rem, 7vw, 5.5rem); letter-spacing: -2px; }
h2 { font-size: clamp(2.2rem, 5vw, 4rem); letter-spacing: -1px; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); color: var(--c-bordeaux); }
p { font-size: clamp(1.05rem, 1.5vw, 1.15rem); margin-bottom: 1.5rem; }

a { text-decoration: none; color: inherit; transition: var(--trans); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--rad-md); }
ul { list-style: none; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--p-safe); }
.sec-p { padding: var(--p-sec) 0; }
.txt-c { text-align: center; }

/* ==========================================================================
   HEADER (STRICT 10PX MOBILE PADDING)
   ========================================================================== */
.site-hdr { background: var(--c-white); border-bottom: 2px solid var(--c-line); position: sticky; top: 0; z-index: 1000; }

.nav-mob-strict {
    display: flex; justify-content: space-between; align-items: center;
    padding: 15px 10px; /* СТРОГО 10PX НА МОБИЛЬНОМ */
    max-width: 1200px; margin: 0 auto; position: relative;
}

@media (min-width: 768px) { .nav-mob-strict { padding: 20px var(--p-safe); } }

.brand { font-size: 2.2rem; font-weight: 900; color: var(--c-dark); letter-spacing: -1px; text-transform: uppercase; }
.brand span { color: var(--c-terra); }

.burger { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.burger span { width: 30px; height: 3px; background: var(--c-dark); transition: var(--trans); }
#menu-tog { display: none; }

.desk-nav { display: none; }
.desk-nav ul { display: flex; gap: 35px; align-items: center; }
.desk-nav a { font-weight: 700; color: var(--c-text); font-size: 1.05rem; text-transform: uppercase; letter-spacing: 1px; }
.desk-nav a:hover, .desk-nav a.active { color: var(--c-bordeaux); }

.mob-nav {
    display: none; position: absolute; top: 100%; left: 0; width: 100%;
    background: var(--c-white); padding: 15px 20px 25px; box-shadow: 0 15px 25px rgba(0,0,0,0.1); border-bottom: 4px solid var(--c-bordeaux);
}
.mob-nav a { display: block; font-weight: 700; color: var(--c-dark); padding: 15px 0; border-bottom: 1px solid var(--c-alabaster); text-transform: uppercase; }
.mob-nav li:last-child a { border-bottom: none; }
#menu-tog:checked ~ .mob-nav { display: block; }

@media (min-width: 992px) {
    .burger { display: none; }
    .desk-nav { display: block; }
    .mob-nav { display: none !important; }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 18px 45px; font-weight: 800; font-size: 1.1rem; border-radius: var(--rad-md); cursor: pointer; transition: var(--trans); border: 2px solid transparent; text-transform: uppercase; letter-spacing: 1px; }
.btn-b { background: var(--c-bordeaux); color: #fff; box-shadow: var(--shadow-soft); }
.btn-b:hover { background: var(--c-dark); color: var(--c-terra); transform: translateY(-3px); }
.btn-o { background: transparent; border-color: var(--c-bordeaux); color: var(--c-bordeaux); }
.btn-o:hover { background: var(--c-bordeaux); color: #fff; }

/* ==========================================================================
   GENERAL GRIDS
   ========================================================================== */
.g-2 { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
@media (min-width: 992px) { .g-2 { grid-template-columns: 1fr 1fr; gap: 60px; } }

/* ==========================================================================
   INDEX: ARCH HERO, ARCH CARDS & VENN DIAGRAM
   ========================================================================== */
.hero-arch { background: var(--c-white); padding: 80px 20px 150px; text-align: center; clip-path: ellipse(150% 100% at 50% 0%); }
.hero-arch h1 { max-width: 900px; margin: 0 auto 20px; }
.hero-arch p { max-width: 700px; margin: 0 auto 40px; }

.arch-grid { display: grid; grid-template-columns: 1fr; gap: 30px; margin-top: -80px; padding: 0 var(--p-safe); max-width: 1200px; margin-left: auto; margin-right: auto; }
@media (min-width: 768px) { .arch-grid { grid-template-columns: repeat(3, 1fr); } }
.arch-card { background: var(--c-white); padding: 60px 30px 40px; border-radius: var(--rad-arch); box-shadow: var(--shadow-hard); text-align: center; border: 2px solid var(--c-line); transition: var(--trans); }
.arch-card:hover { transform: translateY(-10px); border-color: var(--c-bordeaux); }
.a-icon { font-size: 3.5rem; margin-bottom: 20px; display: block; }

/* ==========================================================================
   FIXED VENN DIAGRAM (RESPONSIVE & CLEAN)
   ========================================================================== */
.venn-wrap { 
    position: relative; 
    width: 100%; 
    max-width: 450px; /* Максимальный размер для десктопа */
    aspect-ratio: 1/1; 
    margin: 40px auto 80px; 
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.venn-circle { 
    position: absolute; 
    width: 65%; /* Размер круга относительно контейнера */
    aspect-ratio: 1/1; 
    border-radius: 50%; 
    mix-blend-mode: multiply; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    color: var(--c-white); 
    font-weight: 800; 
    padding: 20px;
    text-align: center; 
    transition: var(--trans);
    z-index: 1;
}

/* Центрируем текст внутри кругов для надежности */
.venn-circle span {
    font-size: clamp(0.8rem, 2vw, 1.1rem);
    line-height: 1.2;
}

/* Позиционирование кругов через проценты - идеально для адаптива */
.v-1 { 
    top: 0; 
    background: rgba(127, 29, 29, 0.9); /* Bordeaux */
}
.v-2 { 
    bottom: 10%; 
    left: 0; 
    background: rgba(234, 88, 12, 0.9); /* Terra */
}
.v-3 { 
    bottom: 10%; 
    right: 0; 
    background: rgba(28, 25, 23, 0.9); /* Dark */
}

.venn-center { 
    position: absolute; 
    z-index: 10; 
    font-size: clamp(1rem, 3vw, 1.5rem); 
    font-weight: 900; 
    color: var(--c-white); 
    text-shadow: 0 2px 10px rgba(0,0,0,0.5); 
    text-align: center; 
    pointer-events: none;
    top: 55%; /* Смещение к центру пересечения */
}

/* Адаптация для маленьких экранов */
@media (max-width: 768px) {
    .venn-wrap {
        max-width: 320px; /* Уменьшаем на мобилках, чтобы не вылетало */
        margin-bottom: 40px;
    }
    .venn-circle {
        width: 70%; /* Чуть увеличиваем круги на мобилке для читаемости текста */
    }
}

@media (max-width: 400px) {
    .venn-wrap {
        max-width: 280px;
    }
}

/* ==========================================================================
   PROGRAM: HORIZONTAL SNAP TRACK & FLASHCARDS
   ========================================================================== */
.hz-scroll-wrap { display: flex; overflow-x: auto; gap: 30px; scroll-snap-type: x mandatory; padding: 20px 0 60px; scrollbar-width: none; }
.hz-scroll-wrap::-webkit-scrollbar { display: none; }
.hz-card { flex: 0 0 85%; scroll-snap-align: center; background: var(--c-white); padding: 50px 40px; border-radius: var(--rad-md); border-top: 8px solid var(--c-bordeaux); box-shadow: var(--shadow-soft); display: flex; flex-direction: column; justify-content: center; }
@media (min-width: 768px) { .hz-card { flex: 0 0 45%; }
.hz-scroll-wrap {max-width: 90%;
overflow-x: scroll} }
@media (min-width: 1024px) { .hz-card { flex: 0 0 30%; } }
.hz-num { font-size: 4rem; color: var(--c-line); font-weight: 900; line-height: 1; margin-bottom: 20px; }

/* Flashcards FAQ */
.flash-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .flash-grid { grid-template-columns: repeat(2, 1fr); } }
.flash-card { background: var(--c-white); padding: 40px; border-radius: var(--rad-md); box-shadow: var(--shadow-hard); border: 2px solid var(--c-dark); display: flex; flex-direction: column; justify-content: center; aspect-ratio: 4/3; }
.flash-card h4 { font-size: 1.3rem; border-bottom: 2px dashed var(--c-line); padding-bottom: 15px; margin-bottom: 15px; }
.flash-card p { margin: 0; font-size: 1rem; }

/* ==========================================================================
   MISSION: TYPOGRAPHIC POSTER LAYOUT
   ========================================================================== */
.poster-hero { background: var(--c-dark); color: var(--c-white); padding: 150px 20px; border-bottom: 15px solid var(--c-bordeaux); }
.poster-hero h1 { color: var(--c-terra); font-size: clamp(3.5rem, 9vw, 7rem); line-height: 0.9; text-transform: uppercase; }

.poster-grid { display: grid; grid-template-columns: 1fr; gap: 40px; border-top: 8px solid var(--c-dark); padding-top: 60px; margin-top: 60px; }
@media (min-width: 768px) { .poster-grid { grid-template-columns: 100px 1fr; gap: 60px; } }
.poster-vert { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 3rem; font-weight: 900; color: var(--c-bordeaux); text-transform: uppercase; letter-spacing: 5px; display: none; }
@media (min-width: 768px) { .poster-vert { display: block; } }

.val-item { padding: 40px 0; border-bottom: 2px solid var(--c-line); }
.val-item:last-child { border-bottom: none; }
.val-item h3 { font-size: 2.5rem; text-transform: uppercase; margin-bottom: 15px; }

/* ==========================================================================
   FORM (4 FIELDS)
   ========================================================================== */
.frm-box { background: var(--c-white); padding: clamp(40px, 6vw, 60px); border-radius: var(--rad-md); box-shadow: var(--shadow-hard); border: 2px solid var(--c-dark); }
.f-row { margin-bottom: 25px; }
.f-row label { display: block; font-weight: 800; color: var(--c-dark); margin-bottom: 10px; text-transform: uppercase; font-size: 0.9rem; letter-spacing: 1px; }
.f-row input, .f-row textarea { width: 100%; padding: 18px; border: 2px solid var(--c-line); border-radius: var(--rad-sm); font-family: inherit; font-size: 1rem; background: var(--c-alabaster); transition: var(--trans); }
.f-row input:focus, .f-row textarea:focus { outline: none; border-color: var(--c-bordeaux); background: var(--c-white); }
.f-row textarea { min-height: 150px; resize: vertical; }

/* ==========================================================================
   FOOTER (STRICT DATES)
   ========================================================================== */
.site-ftr { background: var(--c-white); color: var(--c-text); padding: 80px 0 30px; margin-top: 80px; border-top: 2px solid var(--c-line); }
.ftr-g { display: grid; grid-template-columns: 1fr; gap: 50px; margin-bottom: 60px; }
@media (min-width: 768px) { .ftr-g { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } }
.f-logo { font-size: 2.5rem; font-weight: 900; color: var(--c-dark); margin-bottom: 15px; display: block; text-transform: uppercase; letter-spacing: -2px; }
.f-logo span { color: var(--c-bordeaux); }
.f-desc { font-size: 1rem; line-height: 1.7; }
.f-h { color: var(--c-dark); font-size: 1.3rem; font-weight: 800; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; }
.f-links li { margin-bottom: 15px; }
.f-links a { font-weight: 700; transition: var(--trans); text-transform: uppercase; font-size: 0.9rem; letter-spacing: 1px; }
.f-links a:hover { color: var(--c-terra); padding-left: 8px; }
.f-copy { border-top: 1px solid var(--c-line); padding-top: 30px; text-align: center; font-size: 0.95rem; color: var(--c-text); }

/* ==========================================================================
   COOKIE BANNER (2 BUTTONS, LINK IN TEXT)
   ========================================================================== */
#ck-bnnr { position: fixed; bottom: 20px; left: 20px; right: 20px; background: var(--c-dark); padding: 30px; border-radius: var(--rad-md); z-index: 9999; display: flex; flex-direction: column; gap: 20px; transform: translateY(150%); transition: 0.5s ease; box-shadow: var(--shadow-hard); border: 2px solid var(--c-bordeaux); max-width: 900px; margin: 0 auto; color: white; }
#ck-bnnr.show { transform: translateY(0); }
.ck-txt p { margin: 0; font-size: 1rem; line-height: 1.6; color: #d6d3d1; }
.ck-txt a { color: var(--c-terra); font-weight: 800; text-decoration: underline; }
.ck-acts { display: flex; gap: 10px; }
.b-ck { padding: 14px 25px; border: none; border-radius: var(--rad-sm); font-weight: 800; cursor: pointer; flex: 1; transition: var(--trans); font-size: 1rem; text-align: center; text-transform: uppercase; letter-spacing: 1px; font-family: inherit; }
.b-ck.y { background: var(--c-bordeaux); color: #fff; }
.b-ck.y:hover { background: var(--c-terra); }
.b-ck.n { background: transparent; border: 2px solid var(--c-line); color: var(--c-white); }
.b-ck.n:hover { background: var(--c-white); color: var(--c-dark); }
@media (min-width: 768px) { #ck-bnnr { flex-direction: row; align-items: center; justify-content: space-between; } .ck-acts { width: auto; flex-shrink: 0; } .b-ck { flex: none; } }