/* ═══════════════════════════════════════════════════════════
   ЧОП АНГЕЛ — BRUTALIST DESIGN SYSTEM (Blue-White)
   Inspired by s0ma.tech aesthetic, adapted for security
   ═══════════════════════════════════════════════════════════ */

/* ── RESET & BASE ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Core palette */
    --bg-primary: #0a0e1a;
    --bg-secondary: #0d1225;
    --bg-card: #111832;
    --bg-card-hover: #151d3e;
    
    --fg-primary: #f0f2f8;
    --fg-secondary: #8892b0;
    --fg-muted: #5a6480;
    
    --accent: #3b82f6;
    --accent-bright: #60a5fa;
    --accent-dim: #1d4ed8;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-glow-strong: rgba(59, 130, 246, 0.3);
    
    --border-color: #1e2a4a;
    --border-accent: #2563eb;
    --border-thick: 3px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    --gap: 24px;
    
    /* Effects */
    --brutal-shadow: 4px 4px 0px 0px var(--accent-dim);
    --brutal-shadow-lg: 6px 6px 0px 0px var(--accent-dim);
    --brutal-shadow-hover: 6px 6px 0px 0px var(--accent);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--fg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ── CONTAINER ── */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* ── NAVIGATION ── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-thick) solid var(--border-color);
    transition: var(--transition);
}

.nav.scrolled {
    border-bottom-color: var(--accent-dim);
    background: rgba(10, 14, 26, 0.95);
}

.nav-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.nav-logo:hover {
    color: var(--accent-bright);
}

.nav-logo-sub {
    font-family: var(--font-mono);
    font-size: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--fg-muted);
    text-transform: uppercase;
    margin-left: 6px;
    padding-left: 10px;
    border-left: 2px solid var(--border-color);
    line-height: 1.3;
    transition: var(--transition);
    max-width: 120px;
}

.nav-logo:hover .nav-logo-sub {
    color: var(--fg-secondary);
    border-left-color: var(--accent-dim);
}

.logo-icon {
    color: var(--accent);
    font-size: 1.4rem;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { 
        text-shadow: 0 0 8px var(--accent-glow-strong); 
        opacity: 1;
    }
    50% { 
        text-shadow: 0 0 20px var(--accent-glow-strong), 0 0 40px var(--accent-glow);
        opacity: 0.8;
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--fg-secondary);
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--fg-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 2px solid var(--border-color);
    padding: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.nav-burger:hover {
    border-color: var(--accent);
}

.nav-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--fg-primary);
    transition: var(--transition);
}

.nav-burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 6px);
}

.nav-burger.active span:nth-child(2) {
    opacity: 0;
}

.nav-burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -6px);
}

/* ── HERO ── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse at 30% 50%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at 30% 50%, black 20%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent-bright);
    padding: 8px 16px;
    border: 2px solid var(--border-accent);
    background: var(--accent-glow);
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow-strong); }
    50% { opacity: 0.6; box-shadow: 0 0 0 6px transparent; }
}

.hero-title {
    font-family: var(--font-mono);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

.hero-title-accent {
    color: var(--accent);
    text-shadow: 0 0 60px var(--accent-glow-strong);
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.8;
    color: var(--fg-secondary);
    letter-spacing: 0.05em;
    max-width: 560px;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 64px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding-top: 32px;
    border-top: 2px solid var(--border-color);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 1s;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat-number {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--fg-primary);
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--fg-muted);
    letter-spacing: 0.15em;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 1.2s;
}

.hero-scroll-indicator span {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--fg-muted);
    writing-mode: vertical-rl;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 1; height: 60px; }
    50% { opacity: 0.3; height: 40px; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 14px 28px;
    border: var(--border-thick) solid var(--border-accent);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: var(--brutal-shadow);
}

.btn-primary:hover {
    background: var(--accent-bright);
    box-shadow: var(--brutal-shadow-hover);
    transform: translate(-2px, -2px);
}

.btn-primary:active {
    box-shadow: 2px 2px 0px 0px var(--accent-dim);
    transform: translate(1px, 1px);
}

.btn-outline {
    background: transparent;
    color: var(--fg-primary);
    border-color: var(--border-color);
}

.btn-outline::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: var(--accent);
    transition: height 0.3s ease;
    z-index: -1;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: white;
}

.btn-outline:hover::before {
    height: 100%;
}

.btn-full {
    width: 100%;
}

/* ── SECTIONS ── */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-marker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 24px;
}

.marker-square {
    width: 12px;
    height: 12px;
    background: var(--accent);
    display: inline-block;
}

.section-title {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: 48px;
}

/* ── ABOUT ── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--fg-secondary);
    margin-bottom: 20px;
}

.about-text:last-child {
    margin-bottom: 0;
}

.detail-card {
    padding: 28px;
    border: 2px solid var(--border-color);
    background: var(--bg-card);
    margin-bottom: 16px;
    transition: var(--transition);
}

.detail-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    box-shadow: var(--brutal-shadow);
    transform: translate(-2px, -2px);
}

.detail-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 12px;
}

.detail-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.detail-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--fg-secondary);
}

/* ── SERVICES ── */
.section-services {
    background: var(--bg-secondary);
    border-top: var(--border-thick) solid var(--border-color);
    border-bottom: var(--border-thick) solid var(--border-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.service-card {
    padding: 36px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    background: transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    background: var(--bg-card);
    border-color: var(--accent-dim);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.service-number {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.15em;
    border: 2px solid var(--border-accent);
    padding: 4px 10px;
}

.service-icon {
    font-size: 1.4rem;
    color: var(--fg-muted);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    color: var(--accent-bright);
}

.service-title {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
    line-height: 1.3;
}

.service-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--fg-secondary);
    margin-bottom: 20px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    color: var(--fg-muted);
    transition: var(--transition);
}

.service-card:hover .tag {
    border-color: var(--accent-dim);
    color: var(--accent-bright);
}

/* ── ADVANTAGES ── */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.advantage-item {
    padding: 40px 32px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: var(--accent-glow);
    transition: height 0.4s ease;
}

.advantage-item:hover::after {
    height: 100%;
}

.advantage-item:hover {
    border-color: var(--accent);
}

.advantage-big-number {
    font-family: var(--font-mono);
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.advantage-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.advantage-text {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--fg-secondary);
    position: relative;
    z-index: 1;
}

/* ── LICENSE / REQUISITES ── */
.section-license {
    background: var(--bg-secondary);
    border-top: var(--border-thick) solid var(--border-color);
}

.license-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.license-card {
    border: 2px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.license-card:hover {
    border-color: var(--accent);
}

.license-card-header {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    padding: 16px 28px;
    background: var(--accent-dim);
    color: white;
    border-bottom: 2px solid var(--border-accent);
}

.license-card-body {
    padding: 8px 0;
    background: var(--bg-card);
}

.requisite-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px 28px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.requisite-row:last-child {
    border-bottom: none;
}

.requisite-row:hover {
    background: var(--accent-glow);
}

.requisite-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--fg-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.requisite-value {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--fg-primary);
    text-align: right;
}

/* ── CONTACT ── */
.section-contact {
    border-top: var(--border-thick) solid var(--border-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-block {
    margin-bottom: 32px;
    padding-left: 20px;
    border-left: 3px solid var(--accent);
}

.contact-block-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 8px;
}

.contact-block-value {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--fg-secondary);
}

/* ── DIRECT CONTACTS ── */
.contact-direct {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.direct-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--fg-muted);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.direct-value {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--fg-primary);
    text-decoration: none;
    line-height: 1.1;
    transition: var(--transition);
}

.direct-value:hover {
    color: var(--accent-bright);
}

.email-value {
    font-size: 2.2rem;
    word-break: break-all;
}

@media (max-width: 480px) {
    .direct-value { font-size: 2rem; }
    .email-value { font-size: 1.6rem; }
}

/* ── FOOTER ── */
.footer {
    padding: 48px 0;
    border-top: var(--border-thick) solid var(--border-accent);
    background: var(--bg-secondary);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

.footer-tagline {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--fg-muted);
}

.footer-divider {
    height: 1px;
    background: var(--border-color);
    margin-bottom: 24px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--fg-muted);
}

.footer-legal {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--fg-muted);
    letter-spacing: 0.05em;
}

/* ── SCROLL REVEAL ── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .nav-links {
        display: none !important;
    }
    
    /* Сэндвич-меню удалено */
    
    .nav-logo-sub {
        display: block;
        font-size: 0.45rem;
        max-width: 80px;
        padding-left: 6px;
        margin-left: 4px;
    }
    
    .hero {
        align-items: flex-start;
        padding-top: 120px;
        padding-bottom: 60px;
    }
    
    .hero-title {
        font-size: clamp(2.2rem, 10vw, 3.5rem);
        margin-top: 20px;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .hero-stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-scroll-indicator {
        display: none;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .license-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-top,
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .requisite-row {
        flex-direction: column;
        gap: 4px;
    }
    
    .requisite-value {
        text-align: left;
    }
    
    .advantage-big-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .service-card {
        padding: 24px;
    }
    
    .advantage-item {
        padding: 28px 20px;
    }
}

/* ── FORM SUCCESS STATE ── */
.form-success {
    text-align: center;
    padding: 40px;
    border: 2px solid var(--accent);
    background: var(--accent-glow);
}

.form-success-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.form-success-title {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.form-success-text {
    font-size: 0.9rem;
    color: var(--fg-secondary);
}