/* =========================================================
   ИВК Технологии — design system
   Custom CSS framework, no external dependencies.
   Responsive (mobile-first): 0 / 640 / 768 / 1024 / 1280
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
    /* brand palette: deep navy + electric cyan accent */
    --c-bg:           #ffffff;
    --c-bg-soft:      #f4f7fb;
    --c-bg-deep:      #eef2f8;
    --c-surface:      #ffffff;
    --c-border:       #e3e8ef;
    --c-border-soft:  #eef1f6;

    --c-text:         #0f1d2e;
    --c-text-soft:    #44546b;
    --c-text-mute:    #6d7c91;
    --c-text-invert:  #ffffff;

    --c-primary:      #0a3d8a;
    --c-primary-600:  #0c4ba6;
    --c-primary-700:  #082f6c;
    --c-primary-800:  #062453;
    --c-primary-50:   #e8f0fb;
    --c-primary-100:  #d2e2f7;

    --c-accent:       #1ea7ff;
    --c-accent-600:   #0f8fe0;
    --c-accent-50:    #e2f3ff;

    --c-success:      #15a76b;
    --c-warning:      #e8a93b;
    --c-danger:       #d9434e;

    --c-segment-1:    #0a3d8a;
    --c-segment-2:    #1ea7ff;
    --c-segment-3:    #15a76b;
    --c-segment-4:    #b45309;
    --c-segment-5:    #7c3aed;
    --c-segment-6:    #d9434e;

    /* typography — Manrope для заголовков (геометрический, современный, с кириллицей),
       Inter — для текста. Шрифты загружаются в layout app.php. */
    --f-display: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --f-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --f-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* type scale (modular ~1.25, увеличенные крупные шаги) */
    --fs-xs:    12px;
    --fs-sm:    14px;
    --fs-base:  16px;
    --fs-md:    18px;
    --fs-lg:    20px;
    --fs-xl:    25px;
    --fs-2xl:   32px;
    --fs-3xl:   42px;
    --fs-4xl:   56px;
    --fs-5xl:   72px;

    /* spacing scale (8px base) */
    --s-1:  4px;
    --s-2:  8px;
    --s-3:  12px;
    --s-4:  16px;
    --s-5:  20px;
    --s-6:  24px;
    --s-7:  32px;
    --s-8:  40px;
    --s-9:  48px;
    --s-10: 64px;
    --s-12: 80px;
    --s-14: 96px;

    /* layout */
    --container-max: 1240px;
    --container-pad: 20px;
    --radius-sm:  6px;
    --radius:     10px;
    --radius-lg:  14px;
    --radius-xl:  20px;
    --radius-pill: 999px;

    /* effects */
    --shadow-sm:  0 1px 2px rgba(15, 29, 46, 0.06);
    --shadow:     0 4px 14px rgba(15, 29, 46, 0.08);
    --shadow-md:  0 8px 24px rgba(15, 29, 46, 0.10);
    --shadow-lg:  0 18px 38px rgba(15, 29, 46, 0.14);
    --ring-focus: 0 0 0 3px rgba(30, 167, 255, 0.30);

    --t-fast:    160ms ease;
    --t-base:    220ms ease;
    --t-slow:    360ms ease;

    --z-header: 100;
    --z-overlay: 800;
    --z-modal:  900;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; tab-size: 4; }
body {
    margin: 0;
    font-family: var(--f-sans);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-bg);
    font-feature-settings: 'cv11', 'ss01', 'ss03';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; padding: 0; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-primary-600); }
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-family: var(--f-display);
    font-weight: 700;
    line-height: 1.15;
    color: var(--c-text);
    letter-spacing: -0.02em;
}
h1 { font-weight: 800; letter-spacing: -0.03em; }
p { margin: 0 0 var(--s-4); }
ul, ol { margin: 0; padding-left: 1.25em; }
hr { border: 0; border-top: 1px solid var(--c-border); margin: var(--s-7) 0; }

/* ---------- 3. Layout primitives ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}
.container--narrow { max-width: 920px; }
.container--wide   { max-width: 1400px; }

.section {
    padding-block: var(--s-10);
}
.section--tight  { padding-block: var(--s-8); }
.section--loose  { padding-block: var(--s-14); }
.section--soft   { background: var(--c-bg-soft); }
.section--deep   { background: var(--c-bg-deep); }
.section--dark   { background: var(--c-primary-800); color: var(--c-text-invert); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #fff; }

@media (max-width: 768px) {
    .section        { padding-block: var(--s-8); }
    .section--loose { padding-block: var(--s-9); }
}

/* CSS grid */
.grid { display: grid; gap: var(--s-6); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--auto-280 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--auto-320 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

@media (max-width: 1024px) {
    .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
    .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
    .grid { gap: var(--s-5); }
}

/* simple flex helpers — used sparingly */
.cluster { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }
.stack   { display: flex; flex-direction: column; gap: var(--s-3); }
.row     { display: flex; gap: var(--s-3); }

/* ---------- 4. Typography ---------- */
.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-accent);
    margin-bottom: var(--s-3);
}
.h-display {
    font-size: var(--fs-4xl);
    line-height: 1.08;
    letter-spacing: -0.02em;
}
.h-section {
    font-size: var(--fs-3xl);
    line-height: 1.15;
    letter-spacing: -0.015em;
    margin-bottom: var(--s-3);
}
.h-lead {
    font-size: var(--fs-md);
    color: var(--c-text-soft);
    line-height: 1.6;
    max-width: 70ch;
}
.section-head { margin-bottom: var(--s-9); text-align: center; }
.section-head .h-section { margin-inline: auto; max-width: 28ch; }
.section-head .h-lead { margin-inline: auto; margin-top: var(--s-3); }

@media (max-width: 768px) {
    .h-display { font-size: var(--fs-3xl); }
    .h-section { font-size: var(--fs-2xl); }
    .section-head { margin-bottom: var(--s-7); }
}

.prose p   { color: var(--c-text-soft); }
.prose h2  { font-size: var(--fs-2xl); margin: var(--s-7) 0 var(--s-4); }
.prose h3  { font-size: var(--fs-xl);  margin: var(--s-6) 0 var(--s-3); }
.prose ul, .prose ol { margin: 0 0 var(--s-4) 1.25em; color: var(--c-text-soft); }
.prose ul li, .prose ol li { margin-bottom: var(--s-2); }
.prose a   { color: var(--c-primary-600); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 5. Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--s-2);
    padding: 14px 22px;
    font-size: var(--fs-base);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius);
    border: 1px solid transparent;
    background: var(--c-primary);
    color: #fff;
    transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
    white-space: nowrap;
    cursor: pointer;
}
.btn:hover { background: var(--c-primary-600); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--ring-focus); }
.btn--lg { padding: 18px 30px; font-size: var(--fs-md); }
.btn--sm { padding: 10px 16px; font-size: var(--fs-sm); }
.btn--ghost {
    background: transparent;
    color: var(--c-primary);
    border-color: var(--c-border);
}
.btn--ghost:hover { background: var(--c-bg-soft); color: var(--c-primary); border-color: var(--c-primary-100); }
.btn--outline {
    background: transparent;
    color: var(--c-primary);
    border-color: var(--c-primary);
}
.btn--outline:hover { background: var(--c-primary); color: #fff; }
.btn--accent { background: var(--c-accent); }
.btn--accent:hover { background: var(--c-accent-600); }
.btn--invert { background: #fff; color: var(--c-primary-800); }
.btn--invert:hover { background: var(--c-bg-soft); color: var(--c-primary-800); }

.btn-group { display: inline-flex; flex-wrap: wrap; gap: var(--s-3); }

/* ---------- 6. Cards & surfaces ---------- */
.card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-7);
    transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.card--hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-primary-100);
}
.card--soft { background: var(--c-bg-soft); border-color: transparent; }
.card--flat { border-color: var(--c-border-soft); box-shadow: none; }
.card__title { font-size: var(--fs-xl); margin-bottom: var(--s-3); }
.card__text  { color: var(--c-text-soft); margin: 0 0 var(--s-4); }
.card__cta   { margin-top: auto; padding-top: var(--s-4); display: inline-flex; align-items: center; gap: var(--s-2); color: var(--c-primary-600); font-weight: 600; }
.card__cta::after { content: '→'; transition: transform var(--t-fast); }
.card__cta:hover::after { transform: translateX(3px); }

@media (max-width: 768px) {
    .card { padding: var(--s-6); }
}

/* ---------- 7. Hero ---------- */
.hero {
    position: relative;
    color: var(--c-text-invert);
    background: linear-gradient(135deg, var(--c-primary-800) 0%, var(--c-primary) 60%, var(--c-accent-600) 130%);
    padding: var(--s-14) 0 var(--s-12);
    overflow: hidden;
    isolation: isolate;
}
.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -2;
    background-position: center;
    background-size: cover;
}
.hero__overlay {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(135deg, rgba(6,36,83,0.85) 0%, rgba(10,61,138,0.78) 55%, rgba(15,143,224,0.55) 130%);
}
.hero__inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--s-10); align-items: center; }
.hero__title { color: #fff; font-size: var(--fs-5xl); line-height: 1.05; letter-spacing: -0.025em; margin-bottom: var(--s-5); }
.hero__lead  { color: rgba(255,255,255,0.88); font-size: var(--fs-lg); line-height: 1.55; margin-bottom: var(--s-7); max-width: 60ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.hero__image { aspect-ratio: 4/3; border-radius: var(--radius-xl); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10); box-shadow: var(--shadow-lg); overflow: hidden; }
.hero__image img { width: 100%; height: 100%; object-fit: cover; }

.hero--simple { background: var(--c-bg-soft); color: var(--c-text); padding: var(--s-10) 0 var(--s-8); }
.hero--simple .hero__title { color: var(--c-text); }
.hero--simple .hero__lead  { color: var(--c-text-soft); }

@media (max-width: 1024px) { .hero__title { font-size: var(--fs-4xl); } }
@media (max-width: 768px)  {
    .hero { padding: var(--s-9) 0; }
    .hero__inner { grid-template-columns: 1fr; }
    .hero__title { font-size: var(--fs-3xl); }
    .hero__lead  { font-size: var(--fs-base); }
}

/* hero — generic centered "/lead" variant (used for inner pages without image) */
.hero--centered .hero__inner { grid-template-columns: 1fr; text-align: center; }
.hero--centered .hero__lead  { margin-inline: auto; }
.hero--centered .hero__cta   { justify-content: center; }

/* ---------- 8. Feature card with icon ---------- */
.feature {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-7);
    height: 100%;
    transition: transform var(--t-base), box-shadow var(--t-base);
    display: flex;
    flex-direction: column;
}
.feature:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.feature__icon {
    width: 56px; height: 56px;
    border-radius: var(--radius);
    background: var(--c-primary-50);
    color: var(--c-primary);
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: var(--s-5);
}
.feature__icon svg { width: 28px; height: 28px; }
.feature__icon--accent { background: var(--c-accent-50);    color: var(--c-accent-600); }
.feature__icon--green  { background: #e4f7ee;               color: var(--c-success); }
.feature__icon--purple { background: #f1ebff;               color: #7c3aed; }
.feature__icon--orange { background: #fff1de;               color: #b45309; }
.feature__icon--red    { background: #fde8ea;               color: var(--c-danger); }
.feature__icon--teal   { background: #def8f4;               color: #0d9488; }
.feature__title { font-size: var(--fs-lg); margin-bottom: var(--s-2); }
.feature__text  { color: var(--c-text-soft); font-size: var(--fs-sm); line-height: 1.6; margin: 0; }
.feature__list { list-style: none; padding: 0; margin: var(--s-4) 0 0; }
.feature__list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: var(--s-2);
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
    line-height: 1.5;
}
.feature__list li::before {
    content: '';
    position: absolute;
    left: 4px; top: 8px;
    width: 6px; height: 6px;
    background: var(--c-accent);
    border-radius: 50%;
}

/* ---------- 9. Advantages row (small icons, centered) ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-6); }
@media (max-width: 1024px) { .adv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 540px)  { .adv-grid { grid-template-columns: 1fr; } }
.adv {
    text-align: center;
    padding: var(--s-6);
}
.adv__icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: var(--s-4);
    box-shadow: 0 8px 22px rgba(10, 61, 138, 0.25);
}
.adv__icon svg { width: 28px; height: 28px; }
.adv__title { font-size: var(--fs-md); margin-bottom: var(--s-2); }
.adv__text  { color: var(--c-text-soft); font-size: var(--fs-sm); margin: 0; }

/* ---------- 10. Two-column block (text + image) ---------- */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-10);
    align-items: center;
}
.two-col--reverse { direction: rtl; }
.two-col--reverse > * { direction: ltr; }
.two-col__media {
    aspect-ratio: 4/3;
    border-radius: var(--radius-xl);
    background: var(--c-bg-deep);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.two-col__media img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 1024px) { .two-col { gap: var(--s-7); } }
@media (max-width: 768px)  { .two-col, .two-col--reverse { grid-template-columns: 1fr; } }

/* ---------- 11. Numbered list (steps) ---------- */
.steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6); }
@media (max-width: 768px) { .steps { grid-template-columns: 1fr; } }
.step {
    display: flex;
    gap: var(--s-4);
    padding: var(--s-6);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
}
.step__num {
    flex-shrink: 0;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--c-primary);
    color: #fff;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.step__title { font-size: var(--fs-md); margin-bottom: var(--s-2); }
.step__text  { color: var(--c-text-soft); font-size: var(--fs-sm); margin: 0; }

/* ---------- 12. CTA block ---------- */
.cta {
    background: linear-gradient(135deg, var(--c-primary-800), var(--c-primary));
    color: var(--c-text-invert);
    border-radius: var(--radius-xl);
    padding: var(--s-10) var(--s-8);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    right: -120px; top: -120px;
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(30,167,255,0.35), transparent 70%);
    z-index: 0;
}
.cta > * { position: relative; z-index: 1; }
.cta__title { color: #fff; font-size: var(--fs-3xl); margin-bottom: var(--s-3); }
.cta__lead  { color: rgba(255,255,255,0.85); max-width: 60ch; margin: 0 auto var(--s-7); }
.cta__buttons { display: inline-flex; flex-wrap: wrap; gap: var(--s-3); justify-content: center; }

@media (max-width: 768px) {
    .cta { padding: var(--s-8) var(--s-5); }
    .cta__title { font-size: var(--fs-2xl); }
}

/* ---------- 13. Product categories (with bullets) ---------- */
.pc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6); }
@media (max-width: 768px) { .pc-grid { grid-template-columns: 1fr; } }
.pc {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-7);
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
    transition: border-color var(--t-base), box-shadow var(--t-base);
}
.pc:hover { border-color: var(--c-primary-100); box-shadow: var(--shadow); }
.pc--link { text-decoration: none; color: inherit; cursor: pointer; }
.pc--link:hover { border-color: var(--c-primary); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.pc--link:hover .pc__more { color: var(--c-primary); transform: translateX(4px); }
.pc__more {
    margin-top: var(--s-3);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-primary-600);
    transition: color var(--t-base), transform var(--t-base);
}
.pc__head { display: flex; align-items: center; gap: var(--s-4); }
.pc__icon {
    flex-shrink: 0;
    width: 48px; height: 48px;
    border-radius: var(--radius);
    background: var(--c-primary-50);
    color: var(--c-primary);
    display: inline-flex; align-items: center; justify-content: center;
}
.pc__icon svg { width: 24px; height: 24px; }
.pc__title { font-size: var(--fs-lg); }
.pc__list { list-style: none; padding: 0; margin: 0; }
.pc__list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: var(--s-2);
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
    line-height: 1.55;
}
.pc__list li::before {
    content: '';
    position: absolute;
    left: 0; top: 8px;
    width: 14px; height: 2px;
    background: var(--c-accent);
    border-radius: 2px;
}
.pc__ideal {
    margin-top: auto;
    padding-top: var(--s-4);
    border-top: 1px dashed var(--c-border);
    color: var(--c-text-mute);
    font-size: var(--fs-sm);
    font-style: italic;
}
.pc__ideal b { font-style: normal; color: var(--c-text); }

/* ---------- 14. Segments — "Для кого" card with colored accent stripe ---------- */
.seg-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-6); }
@media (max-width: 1024px) { .seg-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px)  { .seg-grid { grid-template-columns: 1fr; } }

.seg {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-7);
    position: relative;
    overflow: hidden;
    height: 100%;
    transition: transform var(--t-base), box-shadow var(--t-base);
}
.seg:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.seg::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: var(--seg-color, var(--c-primary));
}
.seg__title {
    font-size: var(--fs-md);
    margin-bottom: var(--s-3);
    padding-left: var(--s-3);
}
.seg__text {
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
    line-height: 1.6;
    margin: 0;
    padding-left: var(--s-3);
}
.seg--c1 { --seg-color: var(--c-segment-1); }
.seg--c2 { --seg-color: var(--c-segment-2); }
.seg--c3 { --seg-color: var(--c-segment-3); }
.seg--c4 { --seg-color: var(--c-segment-4); }
.seg--c5 { --seg-color: var(--c-segment-5); }
.seg--c6 { --seg-color: var(--c-segment-6); }

/* ---------- 15. Detail blocks (numbered groups with sub-items) ---------- */
.db-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6); }
@media (max-width: 768px) { .db-grid { grid-template-columns: 1fr; } }
.db {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--s-7);
}
.db__title { font-size: var(--fs-xl); margin-bottom: var(--s-4); }
.db__text  { color: var(--c-text-soft); margin-bottom: var(--s-5); }
.db__items { display: grid; gap: var(--s-4); }
.db__item {
    background: var(--c-bg-soft);
    border-radius: var(--radius);
    padding: var(--s-5);
    position: relative;
}
.db__item-num {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--c-primary-100);
    color: var(--c-primary);
    font-weight: 700;
    font-size: var(--fs-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--s-3);
}
.db__item-title { font-size: var(--fs-md); margin-bottom: var(--s-1); }
.db__item-text  { color: var(--c-text-soft); font-size: var(--fs-sm); margin: 0; }

/* ---------- 16. Forms ---------- */
.field { display: block; margin-bottom: var(--s-4); }
.field__label { display: block; font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--s-2); color: var(--c-text); }
.input, .textarea, .select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--c-border);
    background: var(--c-surface);
    border-radius: var(--radius);
    font-size: var(--fs-base);
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.input:focus, .textarea:focus, .select:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: var(--ring-focus);
}
.textarea { resize: vertical; min-height: 120px; }

/* ---------- 17. Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: rgba(255,255,255,0.97);
    backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid var(--c-border);
}
.site-header__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-6);
    padding-block: var(--s-3);
}
.site-header__logo {
    display: inline-flex; align-items: center; gap: var(--s-3);
    font-weight: 800; font-size: var(--fs-lg); color: var(--c-text);
    letter-spacing: -0.01em;
}
.site-header__logo-mark {
    width: 38px; height: 38px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 800;
    font-size: 18px;
    box-shadow: var(--shadow);
}
.site-header__logo-tag { display: block; font-size: var(--fs-xs); font-weight: 500; color: var(--c-text-mute); letter-spacing: 0.06em; text-transform: uppercase; }

.nav { display: flex; gap: var(--s-5); align-items: center; }
.nav__item { position: relative; }
.nav__link {
    color: var(--c-text);
    font-weight: 500;
    font-size: var(--fs-sm);
    padding: var(--s-5) 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    position: relative;
    transition: color var(--t-fast);
}
.nav__link:hover { color: var(--c-primary); }
.nav__link.is-active { color: var(--c-primary); }
.nav__link.is-active::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 14px;
    height: 2px;
    background: var(--c-accent);
    border-radius: 2px;
}
.nav__chevron {
    transition: transform var(--t-fast);
    opacity: 0.6;
}
.nav__item--has-children:hover .nav__chevron,
.nav__item--has-children:focus-within .nav__chevron { transform: rotate(180deg); opacity: 1; }

/* Dropdown panel */
.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translate(-50%, 8px);
    min-width: 520px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--s-4);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
    z-index: var(--z-header);
}
.nav__item--has-children:hover .nav__dropdown,
.nav__item--has-children:focus-within .nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
}
/* мост, чтобы при движении курсора с пункта на дропдаун ничего не закрылось */
.nav__dropdown::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: -10px;
    height: 10px;
}
.nav__dropdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
}
.nav__sublink {
    display: block;
    padding: var(--s-3) var(--s-4);
    color: var(--c-text);
    font-size: var(--fs-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: background var(--t-fast), color var(--t-fast);
    white-space: nowrap;
}
.nav__sublink:hover {
    background: var(--c-primary-50);
    color: var(--c-primary);
}
.nav__sublink.is-active {
    background: var(--c-primary-50);
    color: var(--c-primary);
    font-weight: 600;
}

.site-header__cta { display: inline-flex; align-items: center; gap: var(--s-3); }
.site-header__phone {
    font-weight: 700; color: var(--c-text); white-space: nowrap;
    text-decoration: none;
}
.site-header__phone small { display: block; font-size: var(--fs-xs); font-weight: 500; color: var(--c-text-mute); }
.burger {
    display: none;
    width: 44px; height: 44px;
    border-radius: var(--radius);
    background: var(--c-bg-soft);
    color: var(--c-text);
    align-items: center; justify-content: center;
    -webkit-tap-highlight-color: transparent;
}
.burger:active { background: var(--c-primary-50); }

.dev-banner {
    display: none;
    background: linear-gradient(90deg, #b45309, #e8a93b);
    color: #fff;
    text-align: center;
    font-size: var(--fs-sm);
    padding: 6px var(--s-4);
}

@media (max-width: 1024px) {
    .nav { display: none; }
    .burger { display: inline-flex; }
    /* на планшетах телефон остаётся, но текст «Связаться» убираем */
    .site-header__cta .btn { display: none; }
}
@media (max-width: 640px) {
    .site-header__bar { padding-block: var(--s-2); gap: var(--s-3); }
    /* на мобиле прячем телефонную строку — она съедает место */
    .site-header__phone { display: none; }
    .site-header__logo { font-size: var(--fs-base); gap: var(--s-2); }
    .site-header__logo-mark { width: 34px; height: 34px; font-size: 15px; }
    .site-header__logo-tag { display: none; }
    .dev-banner { font-size: var(--fs-xs); padding: 4px var(--s-3); }
}

/* mobile menu drawer */
.mmenu {
    position: fixed;
    inset: 0;
    background: rgba(15,29,46,0.45);
    z-index: var(--z-overlay);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-base);
}
.mmenu.is-open { opacity: 1; pointer-events: auto; }
.mmenu__panel {
    position: absolute;
    top: 0; right: 0;
    width: min(380px, 92vw);
    height: 100%;
    background: #fff;
    padding: var(--s-6);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--t-base);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
}
.mmenu.is-open .mmenu__panel { transform: translateX(0); }
.mmenu__close {
    align-self: flex-end;
    width: 44px; height: 44px;
    border-radius: var(--radius);
    background: var(--c-bg-soft);
    display: inline-flex; align-items: center; justify-content: center;
    -webkit-tap-highlight-color: transparent;
}
.mmenu__nav {
    display: flex;
    flex-direction: column;
    margin-top: var(--s-4);
}
.mmenu__item { border-bottom: 1px solid var(--c-border-soft); }
.mmenu__item:last-child { border-bottom: 0; }
.mmenu__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-3);
    color: var(--c-text);
    font-size: var(--fs-md);
    font-weight: 600;
    padding: 14px 0;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
}
.mmenu__link.is-active { color: var(--c-primary); }
.mmenu__toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border-radius: var(--radius-sm);
    background: var(--c-bg-soft);
    color: var(--c-text-soft);
    transition: transform var(--t-fast);
    flex-shrink: 0;
}
.mmenu__item.is-expanded .mmenu__toggle { transform: rotate(180deg); background: var(--c-primary-50); color: var(--c-primary); }
.mmenu__sub {
    display: none;
    padding: 4px 0 var(--s-3) var(--s-3);
    border-left: 2px solid var(--c-primary-50);
    margin-left: 2px;
}
.mmenu__item.is-expanded .mmenu__sub { display: block; }
.mmenu__sub a {
    display: block;
    padding: 12px var(--s-3);
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
}
.mmenu__sub a:active,
.mmenu__sub a.is-active { background: var(--c-primary-50); color: var(--c-primary); }

.mmenu__cta {
    margin-top: auto;
    padding-top: var(--s-6);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
}
.mmenu__cta a { width: 100%; justify-content: center; min-height: 48px; }
.mmenu__cta .mmenu__phone {
    text-align: center;
    color: var(--c-text);
    font-weight: 700;
    font-size: var(--fs-md);
    padding: var(--s-3);
    border-radius: var(--radius);
    background: var(--c-bg-soft);
}
.mmenu__cta .mmenu__phone small { display: block; font-weight: 500; color: var(--c-text-mute); font-size: var(--fs-xs); margin-top: 2px; }

/* ---------- 18. Footer ---------- */
.site-footer {
    background: var(--c-primary-800);
    color: rgba(255,255,255,0.78);
    padding: var(--s-10) 0 var(--s-6);
    margin-top: var(--s-12);
}
.site-footer a { color: rgba(255,255,255,0.78); transition: color var(--t-fast); }
.site-footer a:hover { color: #fff; }

/* Block 1: brand + description + contacts (one united section) */
.site-footer__about-row {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: var(--s-9);
    padding-bottom: var(--s-8);
    border-bottom: 1px solid rgba(255,255,255,0.12);
}
.site-footer__brand { display: flex; flex-direction: column; gap: var(--s-4); }
.site-footer__logo {
    display: inline-flex; align-items: center; gap: var(--s-3);
    font-weight: 800; font-size: var(--fs-lg); color: #fff;
    letter-spacing: -0.01em;
    width: max-content;
}
.site-footer__logo-tag {
    display: block; font-size: var(--fs-xs); font-weight: 500;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.06em; text-transform: uppercase;
}
.site-footer__desc {
    color: rgba(255,255,255,0.65);
    font-size: var(--fs-sm);
    line-height: 1.6;
    max-width: 540px;
    margin: 0;
}
.site-footer__contacts {
    list-style: none; padding: 0; margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-4) var(--s-6);
    font-size: var(--fs-sm);
    align-content: start;
}
.site-footer__contacts li {
    color: #fff;
    line-height: 1.5;
}
.site-footer__contact-label {
    display: block;
    font-size: var(--fs-xs);
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

/* Block 2: navigation columns */
.site-footer__nav {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--s-7);
    padding: var(--s-8) 0;
}
.site-footer__col h4 { color: #fff; font-size: var(--fs-base); margin: 0 0 var(--s-4); }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: var(--fs-sm); }
/* первая колонка футера (Каталог, 15 ссылок) — раскладываем в 2 столбца */
.site-footer__nav .site-footer__col:first-child ul {
    grid-template-columns: 1fr 1fr;
    gap: 10px var(--s-6);
}

/* Block 3: bottom strip */
.site-footer__bottom {
    padding-top: var(--s-5);
    border-top: 1px solid rgba(255,255,255,0.12);
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-3) var(--s-6);
    color: rgba(255,255,255,0.55);
    font-size: var(--fs-sm);
}
.site-footer__bottom-links { display: inline-flex; gap: var(--s-5); flex-wrap: wrap; }
.site-footer__credit { color: rgba(255,255,255,0.65); }
.site-footer__credit:hover { color: var(--c-accent); }

@media (max-width: 1024px) {
    .site-footer__about-row { grid-template-columns: 1fr; gap: var(--s-7); }
    .site-footer__nav { grid-template-columns: 1fr 1fr; }
    .site-footer__nav .site-footer__col:first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    .site-footer__contacts { grid-template-columns: 1fr; }
    .site-footer__nav { grid-template-columns: 1fr; gap: var(--s-6); }
    .site-footer__nav .site-footer__col:first-child ul { grid-template-columns: 1fr; }
    .site-footer__bottom { flex-direction: column; align-items: flex-start; }
    .site-footer__bottom-links { flex-direction: column; gap: var(--s-2); }
}

/* ---------- 18.3 Flash banner (server-side fallback for no-JS submits) ---------- */
.flash-banner {
    padding: var(--s-4) 0;
    font-weight: 500;
    border-bottom: 1px solid transparent;
}
.flash-banner--success { background: #d1fae5; color: #065f46; border-color: #a7f3d0; }
.flash-banner--error   { background: #fee2e2; color: #991b1b; border-color: #fecaca; }
.flash-banner--info    { background: var(--c-primary-50); color: var(--c-primary-700); border-color: var(--c-primary-100); }

/* ---------- 18.4 Feedback form (success/error states, honeypot) ---------- */
.feedback-form { position: relative; }
.feedback-form button[disabled] { opacity: 0.65; cursor: not-allowed; }

/* honeypot — спрятан от пользователей, доступен для ботов */
.hp-field {
    position: absolute !important;
    left: -10000px !important;
    top: auto !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    opacity: 0 !important;
}

.feedback-form__success {
    text-align: center;
    padding: var(--s-6) var(--s-4);
    animation: feedbackPop var(--t-base) ease-out;
}
@keyframes feedbackPop {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.feedback-form__success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin: 0 auto var(--s-4);
    background: var(--c-primary-50);
    color: var(--c-success);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.feedback-form__success-icon svg { width: 36px; height: 36px; }
.feedback-form__success-title {
    font-family: var(--f-display);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--c-text);
    margin: 0 0 var(--s-3);
}
.feedback-form__success-text {
    color: var(--c-text-soft);
    font-size: var(--fs-md);
    line-height: 1.55;
    margin: 0;
}

.feedback-form__error {
    margin-top: var(--s-4);
    padding: var(--s-3) var(--s-4);
    border-radius: var(--radius);
    background: #fee2e2;
    color: #991b1b;
    font-size: var(--fs-sm);
    border: 1px solid #fecaca;
}

/* ---------- 18.5 Cookie consent bar ---------- */
.cookie-bar {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: var(--z-modal);
    background: var(--c-primary-800);
    color: rgba(255,255,255,0.9);
    box-shadow: 0 -8px 24px rgba(15, 29, 46, 0.18);
    padding: var(--s-4) 0;
    transform: translateY(120%);
    opacity: 0;
    transition: transform var(--t-base), opacity var(--t-base);
}
.cookie-bar.is-visible { transform: translateY(0); opacity: 1; }
.cookie-bar__inner {
    display: flex;
    align-items: center;
    gap: var(--s-6);
    flex-wrap: wrap;
    justify-content: space-between;
}
.cookie-bar__text {
    margin: 0;
    font-size: var(--fs-sm);
    line-height: 1.55;
    max-width: 820px;
    color: rgba(255,255,255,0.85);
}
.cookie-bar__text a { color: #fff; text-decoration: underline; text-underline-offset: 2px; }
.cookie-bar__text a:hover { color: var(--c-accent-50); }
.cookie-bar__accept { flex-shrink: 0; min-width: 140px; }
@media (max-width: 640px) {
    .cookie-bar { padding: var(--s-3) 0 calc(var(--s-3) + env(safe-area-inset-bottom)); }
    .cookie-bar__inner { gap: var(--s-3); }
    .cookie-bar__accept { width: 100%; }
}

/* ---------- 19. Misc utilities ---------- */
.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.text-soft   { color: var(--c-text-soft); }
.text-mute   { color: var(--c-text-mute); }
.mb-0 { margin-bottom: 0 !important; }
.mb-3 { margin-bottom: var(--s-3); }
.mb-5 { margin-bottom: var(--s-5); }
.mb-7 { margin-bottom: var(--s-7); }

/* simple badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: var(--c-accent-50);
    color: var(--c-accent-600);
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.badge--primary { background: var(--c-primary-50); color: var(--c-primary); }
.badge--success { background: #e4f7ee; color: var(--c-success); }

/* contacts ---------- */
.contacts-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--s-7); }
@media (max-width: 1024px) { .contacts-grid { grid-template-columns: 1fr; } }
.contact-item { display: flex; gap: var(--s-4); margin-bottom: var(--s-5); }
.contact-item__icon {
    width: 44px; height: 44px; flex-shrink: 0;
    border-radius: var(--radius);
    background: var(--c-primary-50);
    color: var(--c-primary);
    display: inline-flex; align-items: center; justify-content: center;
}
.contact-item__title { font-size: var(--fs-sm); color: var(--c-text-mute); margin-bottom: 2px; text-transform: uppercase; letter-spacing: 0.06em; }
.contact-item__value { font-size: var(--fs-md); font-weight: 600; }

/* support / FAQ ---------- */
.support-grid { display: grid; grid-template-columns: 280px 1fr; gap: var(--s-7); }
@media (max-width: 1024px) { .support-grid { grid-template-columns: 1fr; } }
.faq { display: grid; gap: var(--s-3); }
.faq__item {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: var(--s-5) var(--s-6);
}
.faq__q { font-size: var(--fs-md); margin-bottom: var(--s-2); }
.faq__a { color: var(--c-text-soft); font-size: var(--fs-sm); margin: 0; }
.support-nav { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: var(--s-5); position: sticky; top: 92px; }
.support-nav a { display: block; padding: var(--s-2) 0; font-size: var(--fs-sm); color: var(--c-text); border-bottom: 1px solid var(--c-border-soft); }
.support-nav a:last-child { border-bottom: 0; }

/* ---------- 21. Auth pages (login / register / forgot-password) ---------- */
.auth-page {
    padding: var(--s-12) 0 var(--s-14);
    background: var(--c-bg-soft);
    min-height: calc(100vh - 200px);
}
.auth-card {
    max-width: 440px;
    margin: 0 auto;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg, 16px);
    box-shadow: var(--shadow);
    padding: var(--s-8) var(--s-7);
}
.auth-card__title {
    font-size: var(--fs-xl);
    font-weight: 700;
    text-align: center;
    margin: 0 0 var(--s-2);
    color: var(--c-text);
}
.auth-card__lead {
    text-align: center;
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
    margin: 0 0 var(--s-6);
}
.auth-card .field { margin-bottom: var(--s-5); }
.auth-card .btn--block { display: block; width: 100%; text-align: center; }
.auth-card__row {
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--s-3);
    margin: var(--s-2) 0 var(--s-5);
    font-size: var(--fs-sm);
}
.auth-card__check { display: inline-flex; align-items: center; gap: var(--s-2); color: var(--c-text-soft); cursor: pointer; }
.auth-card__check input { accent-color: var(--c-primary); width: 16px; height: 16px; }
.auth-card__link { color: var(--c-primary-600); font-weight: 500; }
.auth-card__link:hover { color: var(--c-primary-700, var(--c-primary)); text-decoration: underline; }
.auth-card__footer {
    text-align: center;
    margin-top: var(--s-6);
    padding-top: var(--s-5);
    border-top: 1px solid var(--c-border-soft);
    color: var(--c-text-soft);
    font-size: var(--fs-sm);
}
.auth-card__footer p { margin: 0 0 var(--s-2); }
.auth-card__footer p:last-child { margin-bottom: 0; }
@media (max-width: 480px) {
    .auth-card { padding: var(--s-6) var(--s-5); border-radius: var(--radius); }
}