/* ==========================================================================
   CSS VARIABLES & DESERT INDIGO DESIGN (DOYIFUF.ICU)
   ========================================================================== */
:root {
    --c-indigo: #312e81; /* Indigo 900 */
    --c-indigo-light: #4338ca; /* Indigo 700 */
    --c-clay: #b45309; /* Amber 700 / Terracotta */
    --c-clay-light: #d97706; 
    --c-sand: #fefce8; /* Yellow 50 - Warm Sand */
    --c-surface: #ffffff;
    --c-text-dark: #1e293b;
    --c-text-mut: #475569;
    --c-line: #e2e8f0;

    --pad-x: clamp(15px, 4vw, 30px);
    --pad-y: clamp(70px, 8vw, 110px);
    
    --rad-sm: 6px;
    --rad-md: 16px;
    --rad-lg: 28px;
    
    --shadow-soft: 0 10px 25px rgba(49, 46, 129, 0.05);
    --shadow-hover: 0 15px 35px rgba(49, 46, 129, 0.12);
    --trans: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Raleway', system-ui, sans-serif;
    background-color: var(--c-sand);
    color: var(--c-text-mut);
    line-height: 1.7;
    overflow-x: hidden;
}

h1 { font-size: clamp(2.3rem, 6vw, 4.2rem); color: var(--c-indigo); font-weight: 900; line-height: 1.1; margin-bottom: 1.2rem; letter-spacing: -1px; }
h2 { font-size: clamp(1.8rem, 4.5vw, 3rem); color: var(--c-indigo); font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); color: var(--c-clay); font-weight: 700; margin-bottom: 0.8rem; }
p { font-size: clamp(1rem, 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: 1180px; margin: 0 auto; padding: 0 var(--pad-x); }
.sec-p { padding: var(--pad-y) 0; }
.txt-c { text-align: center; }

/* ==========================================================================
   HEADER (STRICT 10PX MOBILE PADDING)
   ========================================================================== */
.site-hdr { background: var(--c-surface); border-bottom: 1px solid var(--c-line); position: sticky; top: 0; z-index: 1000; }

.nav-wrapper {
    display: flex; justify-content: space-between; align-items: center;
    padding: 15px 10px; /* СТРОГО 10PX ДЛЯ МОБИЛЬНЫХ */
    max-width: 1180px; margin: 0 auto; position: relative;
}

@media (min-width: 768px) { .nav-wrapper { padding: 20px var(--pad-x); } }

.brand { font-size: 2.2rem; font-weight: 900; color: var(--c-indigo); letter-spacing: -1px; }
.brand span { color: var(--c-clay); }

.burger { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.burger span { width: 28px; height: 3px; background: var(--c-indigo); border-radius: 2px; transition: var(--trans); }
#menu-chk { 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-mut); font-size: 1.05rem; }
.desk-nav a:hover { color: var(--c-indigo-light); }

.mob-nav {
    display: none; position: absolute; top: 100%; left: 0; width: 100%;
    background: var(--c-surface); padding: 10px 20px 20px;
    box-shadow: 0 15px 25px rgba(0,0,0,0.05); border-top: 1px solid var(--c-line);
}
.mob-nav a { display: block; font-weight: 700; color: var(--c-indigo); padding: 15px 0; border-bottom: 1px solid var(--c-line); }
.mob-nav li:last-child a { border-bottom: none; }
#menu-chk: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: 16px 36px; font-weight: 800; font-size: 1.05rem; border-radius: var(--rad-sm); cursor: pointer; transition: var(--trans); border: 2px solid transparent; text-align: center; }
.btn-in { background: var(--c-indigo); color: #fff; box-shadow: var(--shadow-soft); }
.btn-in:hover { background: var(--c-indigo-light); transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.btn-cl { background: transparent; border-color: var(--c-clay); color: var(--c-clay); }
.btn-cl:hover { background: var(--c-clay); color: #fff; }

/* ==========================================================================
   GRIDS & CARDS
   ========================================================================== */
.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; } }

.g-3 { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 768px) { .g-3 { grid-template-columns: repeat(3, 1fr); } }

.card { background: var(--c-surface); padding: 40px 30px; border-radius: var(--rad-md); box-shadow: var(--shadow-soft); border: 1px solid var(--c-line); transition: var(--trans); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--c-indigo-light); }
.c-icon { font-size: 3rem; color: var(--c-clay); margin-bottom: 20px; }

/* ==========================================================================
   UNIQUE BLOCKS
   ========================================================================== */
/* Pyramid (Index Sec 4) */
.pyramid-wrap { display: flex; flex-direction: column; align-items: center; gap: 15px; margin-top: 40px; }
.pyr-level { background: var(--c-surface); padding: 20px; border-radius: var(--rad-sm); text-align: center; box-shadow: var(--shadow-soft); border: 2px solid; width: 100%; transition: var(--trans); }
.pyr-level:hover { transform: scale(1.02); }
.pyr-1 { max-width: 100%; border-color: #22c55e; }
.pyr-2 { max-width: 80%; border-color: #eab308; }
.pyr-3 { max-width: 60%; border-color: #f97316; }
.pyr-4 { max-width: 40%; border-color: #ef4444; }
.pyr-level h4 { font-size: 1.1rem; margin-bottom: 5px; color: var(--c-text-dark); }
.pyr-level p { font-size: 0.9rem; margin: 0; }

/* ZigZag (Program) */
.zig-row { display: flex; flex-direction: column; gap: 30px; margin-bottom: 60px; background: var(--c-surface); padding: 40px; border-radius: var(--rad-lg); box-shadow: var(--shadow-soft); border-left: 6px solid var(--c-clay); }
@media (min-width: 992px) {
    .zig-row { flex-direction: row; align-items: center; padding: 60px; }
    .zig-row:nth-child(even) { flex-direction: row-reverse; border-left: none; border-right: 6px solid var(--c-indigo); }
    .zig-txt { flex: 1; }
    .zig-num { width: 120px; display: flex; justify-content: center; font-size: 5rem; font-weight: 900; color: var(--c-line); line-height: 1; }
}

/* ==========================================================================
   FORM (4 FIELDS)
   ========================================================================== */
.f-box { background: var(--c-surface); padding: 45px; border-radius: var(--rad-lg); box-shadow: var(--shadow-hover); border: 1px solid var(--c-line); border-top: 5px solid var(--c-indigo); }
.f-row { margin-bottom: 25px; }
.f-row label { display: block; font-weight: 700; color: var(--c-text-dark); margin-bottom: 8px; }
.f-row input, .f-row textarea { width: 100%; padding: 16px; border: 2px solid var(--c-line); border-radius: var(--rad-sm); font-family: inherit; font-size: 1rem; background: var(--c-sand); transition: var(--trans); }
.f-row input:focus, .f-row textarea:focus { outline: none; border-color: var(--c-indigo); background: var(--c-surface); }
.f-row textarea { min-height: 140px; resize: vertical; }

/* ==========================================================================
   FOOTER (STRICT DATES RULE)
   ========================================================================== */
.site-ftr { background: var(--c-indigo); color: #cbd5e1; padding: 80px 0 30px; margin-top: 80px; }
.ftr-g { display: grid; grid-template-columns: 1fr; gap: 50px; margin-bottom: 50px; }
@media (min-width: 768px) { .ftr-g { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } }
.f-logo { font-size: 2.2rem; font-weight: 900; color: #fff; margin-bottom: 20px; display: block; letter-spacing: -1px; }
.f-logo span { color: var(--c-clay-light); }
.f-desc { font-size: 0.95rem; line-height: 1.7; }
.f-h { color: #fff; font-size: 1.25rem; font-weight: 800; margin-bottom: 20px; }
.f-links li { margin-bottom: 12px; }
.f-links a:hover { color: var(--c-clay-light); }
.f-copy { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; font-size: 0.95rem; color: #94a3b8; }

/* ==========================================================================
   COOKIE BANNER (2 BUTTONS, TEXT LINK)
   ========================================================================== */
#ck-wrap { position: fixed; bottom: 20px; left: 20px; right: 20px; background: var(--c-surface); padding: 25px 30px; border-radius: var(--rad-lg); z-index: 9999; display: flex; flex-direction: column; gap: 20px; transform: translateY(150%); transition: 0.5s ease; box-shadow: 0 20px 50px rgba(0,0,0,0.2); border: 2px solid var(--c-indigo); max-width: 900px; margin: 0 auto; }
#ck-wrap.show { transform: translateY(0); }
.ck-t p { margin: 0; font-size: 0.95rem; line-height: 1.6; color: var(--c-text-mut); }
.ck-t a { color: var(--c-indigo); font-weight: 800; text-decoration: underline; }
.ck-b { display: flex; gap: 15px; }
.b-ck { padding: 12px 25px; border: none; border-radius: var(--rad-sm); font-weight: 800; cursor: pointer; flex: 1; transition: var(--trans); font-size: 0.95rem; text-align: center; }
.b-ck.y { background: var(--c-indigo); color: #fff; }
.b-ck.y:hover { background: var(--c-indigo-light); }
.b-ck.n { background: transparent; border: 2px solid var(--c-text-mut); color: var(--c-text-mut); }
.b-ck.n:hover { background: var(--c-text-mut); color: #fff; }
@media (min-width: 768px) { #ck-wrap { flex-direction: row; align-items: center; justify-content: space-between; } .ck-b { width: auto; flex-shrink: 0; } .b-ck { flex: none; } }