/* ==========================================================================
   Prava Udacha — Main Stylesheet
   Design Direction: Document-focused, Authority, Navy/Slate/Gold/White
   Strict responsive & layout safety rules applied
   ========================================================================== */

/* --- 1. CSS Variables & Tokens --- */
:root {
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Segoe UI Mono", "Roboto Mono", Consolas, monospace;
    
    /* Document & Trust Palette */
    --color-navy-900: #0a1420;
    --color-navy-800: #0d1b2a;
    --color-navy-700: #13273e;
    --color-navy-600: #1b3a5c;
    
    --color-blue-600: #1d4ed8;
    --color-blue-500: #2563eb;
    --color-blue-400: #38bdf8;
    --color-blue-50: #eff6ff;
    
    --color-amber-600: #b45309;
    --color-amber-500: #d97706;
    --color-amber-50: #fffbeb;
    
    --color-emerald-600: #059669;
    --color-emerald-500: #10b981;
    --color-emerald-50: #ecfdf5;
    
    --color-slate-900: #0f172a;
    --color-slate-800: #1e293b;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748b;
    --color-slate-400: #94a3b8;
    --color-slate-300: #cbd5e1;
    --color-slate-200: #e2e8f0;
    --color-slate-100: #f1f5f9;
    --color-slate-50: #f8fafc;
    
    --color-white: #ffffff;
    
    /* Semantic aliases */
    --bg-body: var(--color-slate-50);
    --bg-surface: var(--color-white);
    --bg-surface-alt: var(--color-slate-100);
    --bg-dark: var(--color-navy-800);
    --bg-dark-card: var(--color-navy-700);
    
    --text-main: var(--color-slate-800);
    --text-muted: var(--color-slate-600);
    --text-light: var(--color-slate-400);
    --text-inverse: var(--color-white);
    
    --border-main: var(--color-slate-200);
    --border-subtle: var(--color-slate-300);
    --border-dark: var(--color-navy-600);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --container-max: 1240px;
    --header-height: 72px;
}

/* --- 2. Base & Reset --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    overflow-x: hidden;
    overflow-wrap: break-word;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: var(--bg-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-wrap: break-word;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

input, button, textarea, select {
    font: inherit;
    color: inherit;
}

a {
    color: var(--color-blue-600);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-blue-500);
}

ul, ol {
    list-style: none;
}

/* --- 3. Layout Grid & Structure --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
    overflow-x: hidden;
}

.site-main {
    flex: 1 0 auto;
    width: 100%;
    overflow-x: hidden;
}

.layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    width: 100%;
}

.layout-grid > * {
    min-width: 0;
}

@media (min-width: 1024px) {
    .layout-grid--with-sidebar {
        grid-template-columns: 1fr 340px;
    }
}

/* --- 4. Icons & Badges --- */
.icon {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    vertical-align: middle;
    flex-shrink: 0;
}

.icon-xs { width: 0.875rem; height: 0.875rem; }
.icon-sm { width: 1.125rem; height: 1.125rem; }
.icon-md { width: 1.5rem; height: 1.5rem; }
.icon-lg { width: 2.25rem; height: 2.25rem; }

/* Badges */
.doc-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-radius: var(--radius-sm);
    background-color: var(--color-slate-200);
    color: var(--color-slate-800);
}

.doc-badge--gov {
    background-color: var(--color-navy-800);
    color: var(--color-blue-400);
    border: 1px solid var(--color-navy-600);
}

.doc-badge--verified {
    background-color: var(--color-emerald-50);
    color: var(--color-emerald-600);
    border: 1px solid var(--color-emerald-500);
}

.doc-badge--amber {
    background-color: var(--color-amber-50);
    color: var(--color-amber-600);
    border: 1px solid var(--color-amber-500);
}

/* --- 5. Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-blue-600);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    background-color: var(--color-blue-500);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--accent {
    background-color: var(--color-amber-500);
    color: var(--color-navy-900);
    font-weight: 700;
}

.btn--accent:hover {
    background-color: #f59e0b;
    color: var(--color-navy-900);
}

.btn--outline {
    background-color: transparent;
    border-color: var(--border-subtle);
    color: var(--text-main);
}

.btn--outline:hover {
    background-color: var(--color-slate-100);
    border-color: var(--color-slate-400);
}

.btn--sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.825rem;
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.btn--block {
    width: 100%;
}

/* --- 6. Header & Top Bar --- */
.top-bar {
    background-color: var(--color-navy-900);
    color: var(--color-slate-300);
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--color-navy-700);
    padding: 0.45rem 0;
}

.top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.top-bar__notice {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.top-bar__badge {
    background-color: var(--color-amber-500);
    color: var(--color-navy-900);
    font-weight: 800;
    font-size: 0.6875rem;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

.top-bar__contacts {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.top-bar__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--color-slate-300);
}

.top-bar__link:hover {
    color: var(--color-blue-400);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-main);
    box-shadow: var(--shadow-sm);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 1.5rem;
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    flex-shrink: 0;
}

.site-brand__emblem {
    width: 40px;
    height: 40px;
}

.site-brand__name {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--color-navy-800);
    display: block;
    line-height: 1.1;
}

.site-brand__desc {
    font-size: 0.75rem;
    color: var(--color-slate-500);
    display: block;
    font-weight: 500;
}

.site-nav {
    display: none;
}

@media (min-width: 1024px) {
    .site-nav {
        display: block;
    }
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.site-nav__item {
    position: relative;
}

.site-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-slate-700);
    border-radius: var(--radius-sm);
}

.site-nav__link:hover,
.site-nav__link.is-active {
    color: var(--color-blue-600);
    background-color: var(--color-slate-100);
}

.site-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: 280px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem 0;
    display: none;
    z-index: 110;
}

.site-nav__item--dropdown:hover .site-nav__dropdown {
    display: block;
}

.site-nav__dropdown li a {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    color: var(--color-slate-700);
    font-weight: 500;
}

.site-nav__dropdown li a:hover {
    background-color: var(--color-blue-50);
    color: var(--color-blue-600);
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.header-phone {
    display: none;
    align-items: center;
    gap: 0.4rem;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-navy-800);
}

@media (min-width: 768px) {
    .header-phone {
        display: inline-flex;
    }
}

.btn--header {
    display: none;
}

@media (min-width: 480px) {
    .btn--header {
        display: inline-flex;
    }
}

.burger-btn {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border: 1px solid var(--border-main);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

@media (min-width: 1024px) {
    .burger-btn {
        display: none;
    }
}

.burger-btn__line {
    width: 100%;
    height: 2px;
    background-color: var(--color-navy-800);
    border-radius: 2px;
    transition: all 0.2s ease;
}

/* --- 7. Mobile Drawer --- */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 200;
    visibility: hidden;
    transition: visibility 0.3s ease;
}

.mobile-drawer.is-open {
    visibility: visible;
}

.mobile-drawer__overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-drawer.is-open .mobile-drawer__overlay {
    opacity: 1;
}

.mobile-drawer__panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 85%;
    max-width: 360px;
    height: 100%;
    background-color: var(--bg-surface);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
}

.mobile-drawer.is-open .mobile-drawer__panel {
    transform: translateX(0);
}

.mobile-drawer__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-main);
}

.mobile-drawer__close {
    background: transparent;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--color-slate-600);
    cursor: pointer;
}

.mobile-nav {
    flex: 1 0 auto;
    padding: 1rem 0;
}

.mobile-nav__link {
    display: block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-slate-800);
    border-bottom: 1px solid var(--color-slate-100);
}

.mobile-nav__link:hover {
    background-color: var(--color-blue-50);
    color: var(--color-blue-600);
}

.mobile-drawer__footer {
    padding: 1.5rem;
    background-color: var(--color-slate-50);
    border-top: 1px solid var(--border-main);
}

.mobile-drawer__phone-label {
    font-size: 0.75rem;
    color: var(--color-slate-500);
}

.mobile-drawer__phone {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-navy-800);
    display: block;
    margin-bottom: 1rem;
}

.mobile-drawer__socials {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

/* --- 8. Breadcrumbs Bar --- */
.breadcrumbs-bar {
    background-color: var(--color-slate-100);
    border-bottom: 1px solid var(--border-main);
    padding: 0.65rem 0;
    font-size: 0.8125rem;
}

.breadcrumbs__list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.breadcrumbs__item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.breadcrumbs__link {
    color: var(--color-slate-600);
}

.breadcrumbs__link:hover {
    color: var(--color-blue-600);
}

.breadcrumbs__separator {
    color: var(--color-slate-400);
}

.breadcrumbs__current {
    color: var(--color-slate-900);
    font-weight: 600;
}

/* --- 9. Hero Section --- */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-navy-900) 0%, var(--color-navy-800) 50%, var(--color-navy-700) 100%);
    color: var(--color-white);
    padding: 3rem 0 3.5rem;
    border-bottom: 3px solid var(--color-amber-500);
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero__inner {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.hero__title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.25rem;
    color: var(--color-white);
    letter-spacing: -0.01em;
}

@media (min-width: 768px) {
    .hero__title {
        font-size: 2.75rem;
    }
}

.hero__lead {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--color-slate-300);
    margin-bottom: 2rem;
}

.hero__guarantees {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 2.25rem;
}

@media (min-width: 480px) {
    .hero__guarantees {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-feature {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
}

.hero-feature__icon {
    color: var(--color-amber-400, #fbbf24);
    margin-top: 0.15rem;
}

.hero-feature__text strong {
    display: block;
    color: var(--color-white);
    font-size: 0.875rem;
}

.hero-feature__text span {
    font-size: 0.775rem;
    color: var(--color-slate-300);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Document Security Card Specimen */
.doc-specimen {
    background-color: var(--color-navy-700);
    border: 2px solid var(--color-navy-600);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.doc-specimen__stamp {
    position: absolute;
    top: 1rem;
    right: 1rem;
    border: 2px solid var(--color-amber-500);
    color: var(--color-amber-500);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    transform: rotate(6deg);
    text-transform: uppercase;
}

.doc-specimen__header {
    border-bottom: 1px solid var(--color-navy-600);
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
}

.doc-specimen__rf {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-blue-400);
    letter-spacing: 0.08em;
}

.doc-specimen__title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-white);
}

.doc-specimen__body {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.doc-specimen__photo-box {
    width: 90px;
    height: 120px;
    background: var(--color-navy-800);
    border: 1px dashed var(--color-slate-500);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-slate-400);
    font-size: 0.65rem;
    text-align: center;
    padding: 0.25rem;
}

.doc-specimen__info-row {
    margin-bottom: 0.45rem;
}

.doc-specimen__info-label {
    font-size: 0.65rem;
    color: var(--color-slate-400);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.doc-specimen__info-val {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-white);
    font-family: var(--font-mono);
}

.doc-specimen__footer {
    background-color: var(--color-navy-800);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
}

.doc-specimen__status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-emerald-500);
    font-weight: 700;
}

.doc-specimen__status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-emerald-500);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

/* --- 10. Trust Checklist / Feature Grid --- */
.section {
    padding: 4rem 0;
    overflow-x: hidden;
}

.section--alt {
    background-color: var(--bg-surface-alt);
}

.section--dark {
    background-color: var(--color-navy-900);
    color: var(--color-white);
}

.section-head {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 3rem;
}

.section-head__eyebrow {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-blue-600);
    margin-bottom: 0.5rem;
    display: block;
}

.section--dark .section-head__eyebrow {
    color: var(--color-blue-400);
}

.section-head__title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--color-navy-900);
    line-height: 1.25;
    margin-bottom: 0.75rem;
}

.section--dark .section-head__title {
    color: var(--color-white);
}

@media (min-width: 768px) {
    .section-head__title {
        font-size: 2.25rem;
    }
}

.section-head__desc {
    font-size: 1rem;
    color: var(--color-slate-600);
}

.section--dark .section-head__desc {
    color: var(--color-slate-300);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    width: 100%;
}

.cards-grid > * {
    min-width: 0;
}

@media (min-width: 640px) {
    .cards-grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .cards-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .cards-grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }
    .cards-grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Category Card */
.category-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
    position: relative;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-blue-400);
}

.category-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.category-card__badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    background-color: var(--color-blue-50);
    color: var(--color-blue-600);
}

.category-card__icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--color-navy-800);
    color: var(--color-amber-400);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-card__title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-navy-900);
    margin-bottom: 0.5rem;
}

.category-card__desc {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    margin-bottom: 1.25rem;
    flex: 1 0 auto;
}

.category-card__meta {
    background-color: var(--color-slate-50);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    font-size: 0.8125rem;
}

.category-card__price {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--color-blue-600);
}

.category-card__period {
    color: var(--color-slate-500);
}

.category-card__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

/* --- 11. Step-by-Step Flow --- */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.steps-grid > * {
    min-width: 0;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.step-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.step-card__num {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--color-amber-500);
    margin-bottom: 0.75rem;
    display: block;
}

.step-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-navy-900);
    margin-bottom: 0.5rem;
}

.step-card__desc {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    line-height: 1.5;
}

/* --- 12. Security Verification Simulator --- */
.verifier-box {
    background-color: var(--color-navy-800);
    border: 2px solid var(--color-navy-600);
    border-radius: var(--radius-xl);
    padding: 2rem;
    color: var(--color-white);
    max-width: 860px;
    margin: 0 auto;
    box-shadow: var(--shadow-xl);
}

.verifier-box__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-navy-600);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.verifier-box__badge {
    background-color: var(--color-emerald-500);
    color: var(--color-navy-900);
    font-weight: 800;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
}

.verifier-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
    .verifier-form {
        grid-template-columns: 1.2fr 1fr auto;
    }
}

.verifier-results {
    background-color: var(--color-navy-900);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border: 1px solid var(--color-navy-600);
}

.verifier-results__row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.verifier-results__row:last-child {
    border-bottom: none;
}

.verifier-status-ok {
    color: var(--color-emerald-400, #34d399);
    font-weight: 700;
}

/* --- 13. Articles & Markdown Semantic Styles (.rt, .doc-text) --- */
.rt,
.doc-article {
    width: 100%;
    overflow-x: hidden;
    overflow-wrap: break-word;
    color: var(--text-main);
}

.doc-heading {
    font-weight: 800;
    color: var(--color-navy-900);
    line-height: 1.3;
    margin-top: 2rem;
    margin-bottom: 1rem;
    scroll-margin-top: 90px;
}

.doc-heading--h1 { font-size: 2rem; margin-top: 0; }
.doc-heading--h2 { font-size: 1.5rem; border-bottom: 2px solid var(--color-slate-200); padding-bottom: 0.5rem; }
.doc-heading--h3 { font-size: 1.25rem; }
.doc-heading--h4 { font-size: 1.1rem; }

.doc-text {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    color: var(--color-slate-800);
}

.doc-callout {
    background-color: var(--color-blue-50);
    border-left: 4px solid var(--color-blue-600);
    padding: 1.25rem 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 1.5rem 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.doc-callout--highlight {
    background-color: #f0fdf4;
    border-left-color: var(--color-emerald-600);
    color: #14532d;
}

.doc-callout--highlight strong {
    color: #14532d;
}

.doc-quote {
    background-color: var(--color-slate-100);
    border-left: 4px solid var(--color-amber-500);
    padding: 1.25rem;
    margin: 1.5rem 0;
    font-style: italic;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.doc-list {
    margin: 1rem 0 1.5rem 1.5rem;
    list-style: disc;
}

.doc-list--ordered {
    list-style: decimal;
}

.doc-list li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.doc-inline-code {
    font-family: var(--font-mono);
    background-color: var(--color-slate-200);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    color: var(--color-navy-800);
}

.doc-code {
    background-color: var(--color-navy-900);
    color: #e2e8f0;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    margin: 1.5rem 0;
}

/* Tables with strict horizontal scroll safety */
.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1.5rem 0;
    border: 1px solid var(--border-main);
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
    min-width: 500px;
}

.data-table th {
    background-color: var(--color-navy-800);
    color: var(--color-white);
    padding: 0.85rem 1rem;
    font-weight: 700;
    border-bottom: 1px solid var(--border-main);
    white-space: nowrap;
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-slate-200);
    color: var(--color-slate-800);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:nth-child(even) {
    background-color: var(--color-slate-50);
}

.doc-figure {
    margin: 1.75rem 0;
}

.doc-figure__img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    height: auto;
}

.doc-figure__caption {
    font-size: 0.8125rem;
    color: var(--color-slate-500);
    text-align: center;
    margin-top: 0.5rem;
    font-style: italic;
}

.doc-divider {
    border: none;
    border-top: 1px solid var(--border-main);
    margin: 2.5rem 0;
}

/* --- 14. Sidebar Components --- */
.sidebar-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-card__title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-navy-900);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--color-blue-600);
    padding-bottom: 0.4rem;
}

.sidebar-list li {
    margin-bottom: 0.6rem;
}

.sidebar-list a {
    color: var(--color-slate-700);
    font-size: 0.9rem;
    font-weight: 500;
    display: block;
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
}

.sidebar-list a:hover {
    background-color: var(--color-blue-50);
    color: var(--color-blue-600);
}

/* --- 15. FAQ Accordion --- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.faq-item.is-open {
    border-color: var(--color-blue-500);
}

.faq-item__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    background: transparent;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-navy-900);
    cursor: pointer;
    gap: 1rem;
}

.faq-item__icon {
    width: 20px;
    height: 20px;
    transition: transform 0.25s ease;
    color: var(--color-blue-600);
}

.faq-item.is-open .faq-item__icon {
    transform: rotate(180deg);
}

.faq-item__answer {
    display: none;
    padding: 0 1.5rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-slate-700);
    border-top: 1px solid var(--color-slate-100);
}

.faq-item.is-open .faq-item__answer {
    display: block;
}

/* --- 16. Forms & Inputs --- */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-slate-800);
    margin-bottom: 0.35rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--text-main);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-blue-600);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-notice {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background-color: var(--color-blue-50);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    font-size: 0.8125rem;
    color: var(--color-blue-900, #1e3a8a);
}

.form-notice__icon {
    color: var(--color-blue-600);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.form-agreement {
    font-size: 0.75rem;
    color: var(--color-slate-500);
    text-align: center;
    margin-top: 0.75rem;
}

/* --- 17. Trust Banner & Footer --- */
.trust-banner {
    background-color: var(--color-navy-800);
    color: var(--color-white);
    padding: 2.25rem 0;
    border-top: 1px solid var(--color-navy-600);
    border-bottom: 1px solid var(--color-navy-600);
}

.trust-banner__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.trust-banner__badge {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--color-navy-700);
    color: var(--color-amber-500);
    border: 2px solid var(--color-amber-500);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.trust-banner__content {
    flex: 1 1 500px;
}

.trust-banner__title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 0.35rem;
}

.trust-banner__desc {
    font-size: 0.9rem;
    color: var(--color-slate-300);
    line-height: 1.5;
}

.site-footer {
    background-color: var(--color-navy-900);
    color: var(--color-slate-300);
    font-size: 0.875rem;
}

.site-footer__top {
    padding: 4rem 0 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

.footer-grid > * {
    min-width: 0;
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
    }
}

.footer-brand__name {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--color-white);
    letter-spacing: 0.04em;
    margin-bottom: 0.75rem;
}

.footer-brand__tagline {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--color-slate-400);
    margin-bottom: 1.5rem;
}

.footer-security-seals {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.seal-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.775rem;
    color: var(--color-slate-300);
}

.seal-item__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-emerald-500);
}

.footer-col__title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-navy-700);
    padding-bottom: 0.5rem;
}

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: var(--color-slate-400);
    font-size: 0.85rem;
}

.footer-links a:hover {
    color: var(--color-blue-400);
}

.footer-contacts {
    margin-bottom: 1.5rem;
}

.footer-contact-item {
    margin-bottom: 0.75rem;
}

.footer-contact-item__label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-slate-400);
}

.footer-contact-item__val {
    color: var(--color-white);
    font-weight: 700;
    font-size: 0.95rem;
}

.footer-contact-item__val--phone {
    font-size: 1.1rem;
    color: var(--color-blue-400);
}

.site-footer__bottom {
    background-color: #060d15;
    padding: 1.5rem 0;
    border-top: 1px solid var(--color-navy-800);
    font-size: 0.775rem;
    color: var(--color-slate-500);
}

.site-footer__bottom-inner {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    .site-footer__bottom-inner {
        text-align: left;
    }
}

/* --- 18. Floating Contact Widget --- */
.floating-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 90;
}

.floating-widget__links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-navy-800);
    padding: 0.35rem 0.5rem;
    border-radius: 9999px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-navy-600);
}

.floating-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.floating-btn:hover {
    transform: scale(1.08);
}

.floating-btn--tg { background-color: #229ED9; }
.floating-btn--wa { background-color: #25D366; }

.floating-btn--cta {
    width: auto;
    border-radius: 9999px;
    padding: 0 1rem;
    background-color: var(--color-blue-600);
    font-size: 0.85rem;
    font-weight: 700;
}

.floating-btn--cta:hover {
    background-color: var(--color-blue-500);
}

/* --- 19. Modal Window --- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    visibility: hidden;
    opacity: 0;
    transition: all 0.25s ease;
}

.modal.is-open {
    visibility: visible;
    opacity: 1;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
}

.modal__dialog {
    position: relative;
    width: 100%;
    max-width: 520px;
    background-color: var(--bg-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.modal.is-open .modal__dialog {
    transform: translateY(0);
}

.modal__header {
    background-color: var(--color-navy-800);
    color: var(--color-white);
    padding: 1.5rem;
    position: relative;
}

.modal__badge {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--color-amber-400);
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.modal__title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.25;
}

.modal__subtitle {
    font-size: 0.8125rem;
    color: var(--color-slate-300);
    margin-top: 0.35rem;
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--color-slate-400);
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
}

.modal__close:hover {
    color: var(--color-white);
}

.modal__body {
    padding: 1.5rem;
}

.form-success {
    text-align: center;
    padding: 2rem 1rem;
}

.form-success__icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-emerald-50);
    color: var(--color-emerald-600);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.form-success__icon svg {
    width: 32px;
    height: 32px;
}

.form-success__title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-navy-900);
    margin-bottom: 0.5rem;
}

.form-success__desc {
    font-size: 0.9rem;
    color: var(--color-slate-600);
    margin-bottom: 1.5rem;
}

.form-success__contacts p {
    font-size: 0.85rem;
    color: var(--color-slate-500);
    margin-bottom: 0.5rem;
}

.btn-group {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

/* --- 20. Author & E-E-A-T Cards --- */
.author-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin: 2rem 0;
}

.author-box__avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background-color: var(--color-navy-800);
    color: var(--color-amber-400);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 800;
    font-size: 1.25rem;
    border: 2px solid var(--color-blue-400);
}

.author-box__name {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-navy-900);
    margin-bottom: 0.2rem;
}

.author-box__role {
    font-size: 0.8125rem;
    color: var(--color-blue-600);
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.author-box__bio {
    font-size: 0.85rem;
    color: var(--color-slate-600);
}

/* --- 21. Responsive Rules (Mobile-first check) --- */
@media (max-width: 768px) {
    .top-bar__inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .trust-banner__inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .trust-banner__action {
        width: 100%;
    }
    .trust-banner__action .btn {
        width: 100%;
    }
}