/* ==========================================================================
   CSS VARIABLES & AMETHYST GOLD DESIGN (YIYOMOY.ONL)
   ========================================================================== */
:root {
    --c-amethyst: #4c1d95; /* Violet 900 */
    --c-amethyst-light: #6d28d9; /* Violet 700 */
    --c-gold: #ca8a04; /* Yellow 600 */
    --c-gold-light: #facc15; /* Yellow 400 */
    --c-silver: #f3f4f6; /* Gray 100 - Background */
    --c-dark: #111827; /* Gray 900 */
    --c-text: #4b5563; /* Gray 600 */
    --c-white: #ffffff;
    --c-line: #d1d5db; /* Gray 300 */

    --pad-x: clamp(15px, 5vw, 30px);
    --pad-y: clamp(60px, 8vw, 100px);
    
    --rad-sm: 6px;
    --rad-md: 16px;
    --rad-lg: 30px;
    
    --shadow-soft: 0 15px 35px rgba(76, 29, 149, 0.08);
    --shadow-gold: 0 10px 25px rgba(202, 138, 4, 0.2);
    --trans: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

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

h1, h2, h3, h4 { color: var(--c-dark); font-weight: 800; line-height: 1.2; margin-bottom: 1rem; letter-spacing: -0.5px; }
h1 { font-size: clamp(2.2rem, 6vw, 3.5rem); letter-spacing: -1px; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); color: var(--c-amethyst); }
p { font-size: clamp(1rem, 1.5vw, 1.1rem); margin-bottom: 1.5rem; font-weight: 500; }

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

.wrap { width: 100%; max-width: 1200px; 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-white); position: sticky; top: 0; z-index: 1000; box-shadow: 0 4px 15px rgba(0,0,0,0.03); border-bottom: 2px solid var(--c-line); }

.nav-amethyst-bar {
    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-amethyst-bar { padding: 20px var(--pad-x); } }

.brand { font-size: 2rem; font-weight: 900; color: var(--c-amethyst); letter-spacing: 1px; text-transform: uppercase; }
.brand span { color: var(--c-gold); }

.burger { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.burger span { width: 28px; height: 3px; background: var(--c-dark); transition: var(--trans); border-radius: 2px; }
#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: 0.95rem; text-transform: uppercase; letter-spacing: 1px; }
.desk-nav a:hover, .desk-nav a.active { color: var(--c-gold); }

.mob-nav {
    display: none; position: absolute; top: 100%; left: 0; width: 100%;
    background: var(--c-amethyst); padding: 15px 20px 25px; border-top: 3px solid var(--c-gold); box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}
.mob-nav a { display: block; font-weight: 700; color: var(--c-white); padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,0.1); 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: 16px 36px; font-weight: 800; font-size: 1.05rem; border-radius: 4px; cursor: pointer; transition: var(--trans); border: 2px solid transparent; text-transform: uppercase; letter-spacing: 0.5px; }
.btn-g { background: var(--c-gold); color: var(--c-white); box-shadow: var(--shadow-gold); }
.btn-g:hover { background: var(--c-dark); color: var(--c-white); transform: translateY(-3px); box-shadow: var(--shadow-soft); }
.btn-a { background: var(--c-white); border-color: var(--c-amethyst); color: var(--c-amethyst); }
.btn-a:hover { background: var(--c-amethyst); color: var(--c-white); }

/* ==========================================================================
   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: 50px; } }

/* ==========================================================================
   INDEX: OVERLAP PUSH HERO & BENTO BOX ASYMMETRY & VISCOSITY THERMOMETER
   ========================================================================== */
/* Overlap Push Hero */
.push-hero { padding: 40px var(--pad-x) 80px; display: flex; flex-direction: column; align-items: center; }
.ph-img-box { width: 100%; border-radius: var(--rad-md); overflow: hidden; box-shadow: var(--shadow-soft); position: relative; z-index: 1; }
.ph-img-box img { width: 100%; height: 350px; object-fit: cover; }
.ph-txt-box { background: var(--c-white); padding: clamp(30px, 5vw, 50px); border-radius: var(--rad-md); box-shadow: var(--shadow-soft); position: relative; z-index: 2; margin-top: -80px; width: 95%; border-left: 8px solid var(--c-amethyst); }

@media (min-width: 992px) {
    .push-hero { flex-direction: row; padding: 80px var(--pad-x); max-width: 1300px; margin: 0 auto; align-items: center; }
    .ph-img-box { width: 60%; margin-left: auto; }
    .ph-img-box img { height: 500px; }
    .ph-txt-box { width: 50%; margin-top: 0; margin-right: -10%; margin-left: 0; }
}

/* Bento Box Asymmetry */
.bento-wrap { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 40px; }
@media (min-width: 768px) {
    .bento-wrap { grid-template-columns: 1.5fr 1fr; grid-template-rows: auto auto; }
}
.bento-card { background: var(--c-white); padding: 40px; border-radius: var(--rad-md); box-shadow: var(--shadow-soft); border: 1px solid var(--c-line); transition: var(--trans); }
.bento-card:hover { border-color: var(--c-gold); box-shadow: var(--shadow-gold); }
@media (min-width: 768px) {
    .bento-card.large { grid-column: 1 / 2; grid-row: 1 / 3; display: flex; flex-direction: column; justify-content: center; border-top: 6px solid var(--c-amethyst); }
    .bento-card.small-1 { grid-column: 2 / 3; grid-row: 1 / 2; }
    .bento-card.small-2 { grid-column: 2 / 3; grid-row: 2 / 3; }
}
.bc-ico { font-size: 2.5rem; margin-bottom: 15px; display: block; }

/* Viscosity Thermometer */
.visco-meter { max-width: 600px; margin: 60px auto 0; background: var(--c-white); padding: 40px; border-radius: var(--rad-lg); box-shadow: var(--shadow-soft); border: 2px dashed var(--c-amethyst-light); }
.vm-track { width: 100%; height: 30px; background: var(--c-line); border-radius: 15px; position: relative; overflow: hidden; margin: 20px 0; }
.vm-fill { position: absolute; left: 0; top: 0; height: 100%; background: linear-gradient(90deg, #ef4444 0%, var(--c-gold) 50%, #10b981 100%); width: 0%; transition: width 1.5s cubic-bezier(0.25, 1, 0.5, 1); border-radius: 15px; }
.visco-meter:hover .vm-fill { width: 85%; }
.vm-labels { display: flex; justify-content: space-between; font-weight: 800; font-size: 0.9rem; text-transform: uppercase; color: var(--c-text); }
.vm-labels span:last-child { color: var(--c-amethyst); }

/* ==========================================================================
   PROGRAM: DESCENDING STAIRCASE & PERSPECTIVE TILT & FLOATING TOOLTIPS
   ========================================================================== */
/* Descending Staircase Timeline */
.staircase-tl { max-width: 1000px; margin: 0 auto; display: flex; flex-direction: column; gap: 30px; padding: 40px 0; }
.stair-step { background: var(--c-white); padding: 40px; border-radius: var(--rad-md); box-shadow: var(--shadow-soft); position: relative; border-left: 6px solid var(--c-amethyst); width: 100%; }
.ss-num { position: absolute; top: -20px; left: 30px; width: 40px; height: 40px; background: var(--c-gold); color: white; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 1.2rem; border-radius: 50%; box-shadow: var(--shadow-gold); }
@media (min-width: 768px) {
    .stair-step { width: 60%; transition: var(--trans); }
    .stair-step:nth-child(2) { margin-left: 20%; border-left-color: var(--c-gold); }
    .stair-step:nth-child(2) .ss-num { background: var(--c-amethyst); box-shadow: 0 5px 15px rgba(76, 29, 149, 0.3); }
    .stair-step:nth-child(3) { margin-left: 40%; border-left-color: var(--c-dark); }
    .stair-step:nth-child(3) .ss-num { background: var(--c-dark); }
    .stair-step:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0,0,0,0.12); }
}

/* Perspective Tilt Window (REQUIRED bg-1.jpg) */
.perspective-img-box { max-width: 800px; margin: 80px auto; perspective: 1000px; padding: 0 var(--pad-x); }
.pib-inner { width: 100%; height: 350px; background: url('img/bg-1.jpg') center/cover; border-radius: var(--rad-md); box-shadow: 20px 20px 50px rgba(0,0,0,0.2); transform: rotateY(-15deg); transition: var(--trans); position: relative; display: flex; align-items: center; padding: 40px; }
.pib-inner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(17, 24, 39, 0.8) 0%, rgba(17, 24, 39, 0.2) 100%); border-radius: inherit; }
.pib-inner:hover { transform: rotateY(0deg); box-shadow: var(--shadow-soft); }
.pib-txt { position: relative; z-index: 2; color: white; max-width: 400px; }

/* Floating Tooltips FAQ */
.tooltip-faq { display: flex; flex-direction: column; gap: 20px; max-width: 800px; margin: 0 auto; }
.ttf-item { background: var(--c-white); border: 2px solid var(--c-line); padding: 25px 30px; border-radius: var(--rad-sm); position: relative; cursor: pointer; transition: var(--trans); }
.ttf-head { font-weight: 800; font-size: 1.1rem; color: var(--c-dark); display: flex; justify-content: space-between; align-items: center; }
.ttf-head::after { content: '?'; color: var(--c-gold); font-size: 1.5rem; }
.ttf-body { position: absolute; top: 100%; left: 0; width: 100%; background: var(--c-amethyst); color: white; padding: 20px; border-radius: var(--rad-sm); box-shadow: var(--shadow-soft); opacity: 0; visibility: hidden; transition: var(--trans); z-index: 10; margin-top: 10px; font-size: 1.05rem; }
.ttf-item:hover { border-color: var(--c-amethyst); }
.ttf-item:hover .ttf-body { opacity: 1; visibility: visible; margin-top: 5px; }
@media (max-width: 768px) {
    /* Make standard accordion on mobile for usability */
    .ttf-body { position: static; opacity: 1; visibility: visible; display: none; margin-top: 15px; }
    .ttf-item:active .ttf-body { display: block; }
}

/* ==========================================================================
   MISSION: STICKY IMAGE PRESENTATION & HONEYCOMB HEXAGONS
   ========================================================================== */
/* Sticky Image Presentation (REQUIRED bg.jpg) */
.presentation-wrap { display: flex; flex-direction: column; gap: 40px; margin-bottom: 60px; }
@media (min-width: 992px) {
    .presentation-wrap { flex-direction: row; }
    .pres-left { width: 50%; padding-right: 40px; display: flex; flex-direction: column; gap: 60px; padding-bottom: 50px; }
    .pres-right { width: 50%; position: sticky; top: 100px; height: calc(100vh - 120px); max-height: 600px; }
}
.pres-img-box { width: 100%; height: 400px; background: url('img/bg.jpg') center/cover; border-radius: var(--rad-md); box-shadow: var(--shadow-soft); }
@media (min-width: 992px) { .pres-img-box { height: 100%; } }
.pres-text-block { background: var(--c-white); padding: 40px; border-radius: var(--rad-sm); box-shadow: var(--shadow-soft); border-left: 4px solid var(--c-gold); }

/* Honeycomb Hexagons (Values) */
.honeycomb-grid { display: flex; flex-wrap: wrap; justify-content: center; max-width: 900px; margin: 60px auto 0; padding: 40px 0; }
.hc-hex { width: 260px; height: 300px; background: var(--c-white); clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 30px; margin: -15px 10px; transition: var(--trans); border: 4px solid var(--c-silver); }
.hc-hex:hover { background: var(--c-amethyst); color: white; transform: scale(1.05); z-index: 2; }
.hc-hex h3 { color: var(--c-dark); transition: var(--trans); font-size: 1.2rem; margin-bottom: 10px; }
.hc-hex:hover h3 { color: var(--c-gold-light); }
.hc-hex p { font-size: 0.9rem; margin: 0; line-height: 1.4; color: inherit; }
@media (min-width: 768px) { .hc-hex:nth-child(2) { transform: translateY(150px); } .hc-hex:nth-child(2):hover { transform: translateY(150px) scale(1.05); } }

/* ==========================================================================
   FORM (4 FIELDS)
   ========================================================================== */
.frm-ui { background: var(--c-white); padding: clamp(30px, 5vw, 50px); border-radius: var(--rad-md); box-shadow: var(--shadow-soft); max-width: 650px; margin: 0 auto; border-top: 6px solid var(--c-amethyst); }
.f-row { margin-bottom: 20px; }
.f-row label { display: block; font-weight: 800; color: var(--c-dark); margin-bottom: 8px; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.5px; }
.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-silver); transition: var(--trans); }
.f-row input:focus, .f-row textarea:focus { outline: none; border-color: var(--c-gold); background: var(--c-white); box-shadow: inset 4px 0 0 var(--c-gold); }
.f-row textarea { min-height: 120px; resize: vertical; }

/* ==========================================================================
   FOOTER (HARDCODED COLORS & !IMPORTANT)
   ========================================================================== */
.site-ftr { background-color: #111827 !important; color: #d1d5db !important; padding: 70px 0 30px; margin-top: 80px; }
.ftr-g { display: grid; grid-template-columns: 1fr; gap: 40px; 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: #ffffff !important; margin-bottom: 15px; display: block; letter-spacing: 0.5px; text-transform: lowercase; }
.f-logo span { color: #ca8a04 !important; } /* Gold */
.f-desc { font-size: 0.95rem; line-height: 1.6; color: #d1d5db !important; text-transform: none; font-weight: 400; }
.f-h { color: #ffffff !important; font-size: 1.1rem; font-weight: 800; margin-bottom: 15px; text-transform: uppercase; letter-spacing: 1px; }
.f-links li { margin-bottom: 10px; }
.f-links a { font-weight: 500; transition: var(--trans); color: #d1d5db !important; text-transform: none; }
.f-links a:hover { color: #facc15 !important; padding-left: 5px; } /* Gold Light */
.f-copy { border-top: 1px solid #374151 !important; padding-top: 25px; text-align: center; font-size: 0.9rem; color: #9ca3af !important; }

/* ==========================================================================
   COOKIE BANNER
   ========================================================================== */
#ck-bnnr { position: fixed; bottom: 20px; left: 20px; right: 20px; background: var(--c-white); padding: 25px; border-radius: var(--rad-md); z-index: 9999; display: flex; flex-direction: column; gap: 15px; transform: translateY(150%); transition: 0.5s ease; box-shadow: var(--shadow-soft); border: 1px solid var(--c-line); max-width: 800px; margin: 0 auto; border-left: 6px solid var(--c-amethyst); }
#ck-bnnr.show { transform: translateY(0); }
.ck-txt { margin: 0; font-size: 0.95rem; line-height: 1.5; color: var(--c-text); font-weight: 500; }
.ck-txt a { color: var(--c-amethyst); font-weight: 800; text-decoration: underline; }
.ck-acts { display: flex; gap: 10px; }
.b-ck { padding: 12px 20px; border: 2px solid transparent; border-radius: var(--rad-sm); font-weight: 800; cursor: pointer; flex: 1; transition: var(--trans); font-size: 0.9rem; text-align: center; font-family: inherit; text-transform: uppercase; letter-spacing: 0.5px; }
.b-ck.y { background: var(--c-amethyst); color: #fff; }
.b-ck.y:hover { background: var(--c-dark); }
.b-ck.n { background: var(--c-white); color: var(--c-text); border-color: var(--c-line); }
.b-ck.n:hover { background: var(--c-silver); }
@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; } }