/* ─── Variables ─────────────────────────────────────────────────────────── */
:root {
    --bg-base:      #0a0a0a;
    --bg-card:      rgba(26, 26, 26, 0.6);
    --bg-card-mid:  rgba(22, 22, 22, 0.4);
    --bg-card-dark: rgba(13, 13, 13, 0.8);
    --border:       rgba(255, 255, 255, 0.05);
    --border-card:  rgba(255, 255, 255, 0.1);
    --border-hover: rgba(255, 255, 255, 0.2);
    --accent:       #4f7eff;
    --accent-glow:  rgba(79, 126, 255, 0.3);
    --accent-dim:   rgba(79, 126, 255, 0.12);
    --text-primary: #ffffff;
    --text-muted:   #a0a0a0;
    --text-hint:    #555555;
    --glass-blur:   blur(12px);
}

/* ─── Reset & Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    margin: 0;
    overflow-x: hidden;
}

/* Background decoration */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background:
            radial-gradient(circle at 10% 20%, rgba(79,126,255,0.05) 0%, transparent 40%),
            radial-gradient(circle at 90% 80%, rgba(79,126,255,0.05) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

/* ─── Navbar ────────────────────────────────────────────────────────────── */
.site-nav {
    background-color: rgba(10, 10, 10, 0.7);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border);
    padding-top: 14px;
    padding-bottom: 14px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-nav .navbar-brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    text-decoration: none;
}

.site-nav .navbar-brand span {
    color: var(--accent);
    text-shadow: 0 0 15px var(--accent-glow);
}

.site-nav .nav-link {
    font-size: 13px;
    color: var(--text-muted);
    padding: 6px 0;
    transition: color 0.3s ease;
    text-decoration: none;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus { color: var(--text-primary); }

.btn-nav-cta {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-card);
    border-radius: 10px;
    padding: 7px 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: nowrap;
    backdrop-filter: var(--glass-blur);
}

.btn-nav-cta:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
    box-shadow: 0 0 15px var(--accent-glow);
}

.site-nav .navbar-toggler { border-color: var(--border-card); padding: 5px 9px; }
.site-nav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(240,240,240,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ─── Shared ────────────────────────────────────────────────────────────── */
.content-section {
    padding: 100px 0;
    border-top: 1px solid var(--border);
}

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 48px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    margin: 0;
}

.section-meta {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.section-eyebrow {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 24px;
    display: block;
}

.btn-submit {
    display: inline-block;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.5;
    box-shadow: 0 4px 15px rgba(79,126,255,0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
    color: #fff;
}

.btn-submit:active { transform: translateY(0); }
.btn-submit.w-100  { padding: 14px; }

/* ─── Hero ──────────────────────────────────────────────────────────────── */
.hero-section {
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
}

/* CSS blob глобусы */
.hero-abstraction {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.abstraction-item {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    animation: blobFloat 30s infinite ease-in-out;
}

.item-1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(79,126,255,0.18) 0%, transparent 70%);
    top: -15%; left: -10%;
    animation-duration: 32s;
}

.item-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(79,126,255,0.12) 0%, transparent 70%);
    bottom: -10%; right: -8%;
    animation-duration: 38s;
    animation-delay: -8s;
}

.item-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(120,160,255,0.1) 0%, transparent 70%);
    top: 35%; left: 35%;
    animation-duration: 26s;
    animation-delay: -4s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(40px, -60px) scale(1.12); }
    66%       { transform: translate(-30px, 30px) scale(0.9); }
}

/* Canvas поверх блобов */
.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-title {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.hero-sub {
    font-size: clamp(15px, 2vw, 18px);
    color: var(--text-muted);
    line-height: 1.75;
    max-width: 480px;
    margin: 0;
}

/* Glass form */
.hero-form-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-card);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    position: relative;
    z-index: 1;
}

.form-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 28px;
}

.hero-form-card .form-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.hero-form-card .form-control {
    background-color: rgba(255,255,255,0.03);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-primary);
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.hero-form-card .form-control:focus {
    background-color: rgba(255,255,255,0.05);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-dim);
    color: var(--text-primary);
    outline: none;
}

.hero-form-card .form-control::placeholder { color: var(--text-hint); }

.form-result {
    font-size: 14px;
    text-align: center;
    min-height: 24px;
}

/* ─── Stats bar ─────────────────────────────────────────────────────────── */
.stats-bar {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stat-item {
    padding: 40px 24px;
    border-right: 1px solid var(--border);
}

.stat-item:last-child { border-right: none; }

.stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 12px;
}

.stat-inf   { font-size: 46px; }
.stat-accent { color: var(--accent); text-shadow: 0 0 20px var(--accent-glow); }

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ─── Services ──────────────────────────────────────────────────────────── */
.service-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    background: rgba(255,255,255,0.05);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.card-arrow {
    position: absolute;
    top: 24px; right: 24px;
    font-size: 20px;
    color: var(--text-hint);
    transition: all 0.3s ease;
}

.service-card:hover .card-arrow {
    color: var(--accent);
    transform: translate(4px, -4px);
}

.service-num {
    font-size: 12px;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.service-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 14px;
}

.service-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ─── Process ───────────────────────────────────────────────────────────── */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: relative;
}

.process-line {
    position: absolute;
    top: 21px;
    left: calc(10% + 20px);
    right: calc(10% + 20px);
    height: 2px;
    background: var(--border-card);
    z-index: 0;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 15px;
    position: relative;
    z-index: 1;
}

.process-dot {
    width: 44px; height: 44px;
    border-radius: 14px;
    background: var(--bg-card-dark);
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-hint);
    margin-bottom: 24px;
    flex-shrink: 0;
}

.process-dot--lit {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-base);
    box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.process-dot--accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.process-step-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.process-step-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

.process-duration {
    display: inline-block;
    margin-top: 16px;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-dim);
    border-radius: 8px;
    padding: 4px 12px;
}

/* Mobile */
.process-mobile-step {
    display: flex;
    gap: 24px;
    padding-bottom: 8px;
}

.process-mobile-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.process-mobile-line {
    width: 2px;
    flex: 1;
    background: var(--border-card);
    margin: 8px 0;
    min-height: 30px;
}

.process-mobile-body { padding-bottom: 24px; }
.process-mobile-step--last .process-mobile-body { padding-bottom: 0; }

/* ─── Portfolio ─────────────────────────────────────────────────────────── */
.portfolio-card {
    border-radius: 24px;
    padding: 36px;
    border: 1px solid var(--border-card);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.portfolio-card:hover {
    transform: translateY(-12px);
    border-color: var(--border-hover);
    box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

.portfolio-card--dark { background: rgba(13,13,13,0.9); }
.portfolio-card--mid  { background: rgba(22,22,22,0.7); backdrop-filter: var(--glass-blur); }
.portfolio-card--dim  { background: rgba(26,26,26,0.5); backdrop-filter: var(--glass-blur); }

.portfolio-tag {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-hint);
    margin-bottom: 40px;
}

.portfolio-card--dark .portfolio-tag { color: var(--accent); }

.portfolio-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 14px;
}

.portfolio-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

.portfolio-card-link {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.portfolio-card:has(.portfolio-card-link) {
    cursor: pointer;
}

.portfolio-card:has(.portfolio-card-link):hover {
    border-color: var(--accent);
}

/* ─── Contacts ──────────────────────────────────────────────────────────── */
.contacts-section {
    padding: 100px 0;
    border-top: 1px solid var(--border);
}

.contacts-heading {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -1px;
    line-height: 1.1;
    margin: 0;
}

.contacts-heading-dim { color: var(--text-muted); }

.contacts-list { display: flex; flex-direction: column; gap: 16px; }

.contacts-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    border-radius: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-card);
    transition: all 0.3s ease;
}

.contacts-item:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-hover);
    transform: translateX(8px);
}

.contacts-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent);
}

.contacts-label {
    font-size: 11px;
    color: var(--text-hint);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contacts-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ─── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 991px) {
    .hero-section { padding: 80px 0 60px; }
    .hero-sub { max-width: 100%; }
}

@media (max-width: 767px) {
    .hero-section     { padding: 60px 0 40px; }
    .content-section  { padding: 70px 0; }
    .contacts-section { padding: 70px 0; }
    .section-header   { margin-bottom: 32px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item  { border-bottom: 1px solid var(--border); padding: 28px 16px; }
    .stat-item:nth-child(2n)      { border-right: none; }
    .stat-item:nth-last-child(-n+2) { border-bottom: none; }
}

@media (max-width: 480px) {
    .hero-title { letter-spacing: -1px; }
}