/* ============================================================
   DEVCRAFT — PREMIUM WEB AGENCY STYLESHEET
   ============================================================ */

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

:root {
    /* Colors */
    --bg:           #05050f;
    --bg-2:         #0a0a1a;
    --bg-3:         #0d0d20;
    --card:         rgba(13, 13, 32, 0.85);
    --accent:       #6c63ff;
    --accent-2:     #00d4ff;
    --grad:         linear-gradient(135deg, #6c63ff 0%, #00d4ff 100%);
    --grad-hover:   linear-gradient(135deg, #7c74ff 0%, #20deff 100%);
    --text:         #ffffff;
    --text-2:       #9898b8;
    --text-3:       #4a4a6a;
    --border:       rgba(108, 99, 255, 0.15);
    --border-hover: rgba(108, 99, 255, 0.4);
    --glow-sm:      0 0 20px rgba(108, 99, 255, 0.25);
    --glow-md:      0 0 40px rgba(108, 99, 255, 0.35);
    --glow-lg:      0 30px 60px rgba(108, 99, 255, 0.2);

    /* Typography */
    --font-h: 'Space Grotesk', sans-serif;
    --font-b: 'Inter', sans-serif;

    /* Motion */
    --ease:  cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --t: all 0.3s var(--ease);
    --t-slow: all 0.6s var(--ease);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-b);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font-b); }

/* ── UTILITY ──────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 9rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.28);
    padding: 0.35rem 1.1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.section-title {
    font-family: var(--font-h);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin-bottom: 1.25rem;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-2);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.75;
}

.section-text {
    font-size: 1rem;
    color: var(--text-2);
    line-height: 1.85;
    margin-bottom: 1rem;
}

.gradient-text {
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.br-desktop { display: block; }

/* ── KEYFRAMES ────────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(36px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-18px); }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50%       { background-position: 100% 50%; }
}

@keyframes scrollLine {
    0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
    50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
    51%  { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(108, 99, 255, 0.5); }
    50%       { box-shadow: 0 0 0 8px rgba(108, 99, 255, 0); }
}

@keyframes shimmer {
    0%   { left: -100%; }
    100% { left: 200%; }
}

@keyframes badgeDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.6; transform: scale(0.7); }
}

@keyframes orb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(80px, -60px) scale(1.15); }
    66%       { transform: translate(-50px, 80px) scale(0.9); }
}

@keyframes orb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(-70px, 60px) scale(1.1); }
    66%       { transform: translate(60px, -80px) scale(0.95); }
}

/* ── SCROLL FADE-IN ───────────────────────────────────────── */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.875rem 1.875rem;
    border-radius: 12px;
    font-family: var(--font-h);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s var(--ease-spring), box-shadow 0.3s var(--ease);
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s var(--ease);
    flex-shrink: 0;
}

.btn:hover svg { transform: translateX(4px); }

.btn-primary {
    background: var(--grad);
    background-size: 200% 200%;
    color: #fff;
    animation: gradientShift 5s ease infinite;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 40px rgba(108, 99, 255, 0.45);
}

.btn-primary:active { transform: translateY(-1px) scale(0.99); }

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(108, 99, 255, 0.1);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--glow-sm);
}

.btn-full { width: 100%; justify-content: center; padding: 1.1rem 2rem; }

/* ── NAVBAR ───────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.5rem 2rem;
    transition: var(--t-slow);
}

.navbar.scrolled {
    background: rgba(5, 5, 15, 0.88);
    backdrop-filter: blur(24px) saturate(1.8);
    -webkit-backdrop-filter: blur(24px) saturate(1.8);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-h);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text);
    transition: opacity 0.2s;
}

.nav-logo:hover { opacity: 0.85; }

.logo-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--grad);
    animation: pulse 2.5s ease-in-out infinite;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-2);
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.25s;
    position: relative;
    padding-bottom: 2px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--grad);
    border-radius: 2px;
    transition: width 0.3s var(--ease);
}

.nav-links a:not(.nav-cta):hover { color: var(--text); }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
    background: rgba(108, 99, 255, 0.12) !important;
    color: var(--accent) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 9px;
    border: 1px solid rgba(108, 99, 255, 0.3) !important;
    transition: var(--t) !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
    background: rgba(108, 99, 255, 0.24) !important;
    border-color: var(--accent) !important;
    transform: translateY(-2px);
    box-shadow: var(--glow-sm);
}

/* Hamburger */
/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: rgba(108, 99, 255, 0.08);
    border: 1px solid rgba(108, 99, 255, 0.25);
    border-radius: 8px;
    padding: 0.35rem 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}
.lang-toggle:hover {
    background: rgba(108, 99, 255, 0.18);
    border-color: var(--accent);
}
.lang-opt {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-3);
    transition: color 0.25s ease;
}
.lang-opt.lang-active {
    color: var(--accent);
}
.lang-sep {
    font-size: 0.7rem;
    color: var(--text-3);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--t);
    display: block;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
    display: none;
    background: rgba(5, 5, 15, 0.97);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
}

.mobile-menu.open { display: block; }

.mobile-menu ul {
    list-style: none;
    padding: 1.5rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.mobile-menu a {
    display: block;
    padding: 0.75rem 0;
    color: var(--text-2);
    font-size: 1.05rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: color 0.2s;
}

.mobile-menu a:hover { color: var(--accent); }

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.18) 0%, transparent 70%);
    top: -100px;
    left: -150px;
    animation: orb1 14s ease-in-out infinite;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
    bottom: -80px;
    right: -100px;
    animation: orb2 16s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.28);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 2.25rem;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease) forwards 0.1s;
}

.badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    animation: badgeDot 1.8s ease-in-out infinite;
}

.hero-title {
    font-family: var(--font-h);
    font-size: clamp(3.2rem, 9vw, 6.5rem);
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -0.035em;
    margin-bottom: 1.75rem;
    opacity: 0;
    animation: fadeInUp 0.9s var(--ease) forwards 0.3s;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-2);
    max-width: 580px;
    margin: 0 auto 3rem;
    line-height: 1.75;
    opacity: 0;
    animation: fadeInUp 0.9s var(--ease) forwards 0.5s;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 5rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.9s var(--ease) forwards 0.7s;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3.5rem;
    opacity: 0;
    animation: fadeInUp 0.9s var(--ease) forwards 0.9s;
}

.stat { display: flex; flex-direction: column; align-items: center; }

.stat-number {
    font-family: var(--font-h);
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1;
    background: var(--grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-3);
    margin-top: 0.3rem;
    letter-spacing: 0.02em;
}

.stat-divider {
    width: 1px;
    height: 48px;
    background: var(--border);
}

.hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 2;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease) forwards 1.2s;
}

.hero-scroll span {
    font-size: 0.7rem;
    color: var(--text-3);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 52px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollLine 2.2s ease-in-out infinite;
}

/* ── ABOUT ────────────────────────────────────────────────── */
.about { overflow: hidden; }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7rem;
    align-items: center;
}

.about-visual { position: relative; }

.about-image-wrapper {
    position: relative;
    height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-glow {
    position: absolute;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.about-card-stack { position: relative; width: 100%; height: 100%; }

.stack-card {
    position: absolute;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.2rem 1.6rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    font-size: 0.9rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
    cursor: default;
    white-space: nowrap;
}

.stack-card:hover {
    border-color: var(--accent);
    box-shadow: var(--glow-md);
}

.card-icon { font-size: 1.5rem; }

.card-1 { top: 8%; left: 5%; animation: float 5s ease-in-out infinite; }
.card-2 { top: 38%; right: 2%; animation: float 5s ease-in-out infinite 1.2s; }
.card-3 { bottom: 20%; left: 15%; animation: float 5s ease-in-out infinite 2.4s; }
.card-4 { top: 65%; right: 10%; animation: float 5s ease-in-out infinite 0.6s; }

.about-features {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    margin-top: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    font-size: 0.95rem;
    color: var(--text-2);
}

.feature-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(108, 99, 255, 0.12);
    border: 1px solid rgba(108, 99, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--accent);
    flex-shrink: 0;
}

/* ── SERVICES ─────────────────────────────────────────────── */
.services {
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(108, 99, 255, 0.06) 0%, transparent 70%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--ease-spring), border-color 0.3s, box-shadow 0.3s;
    cursor: default;
    backdrop-filter: blur(12px);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad);
    opacity: 0;
    transition: opacity 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-hover);
    box-shadow: var(--glow-lg), 0 0 0 1px rgba(108,99,255,0.08);
}

.service-card:hover::after { opacity: 1; }

.service-card.featured {
    background: linear-gradient(145deg, rgba(108, 99, 255, 0.14) 0%, rgba(0, 212, 255, 0.05) 100%);
    border-color: rgba(108, 99, 255, 0.38);
}

.service-badge {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    background: var(--grad);
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.service-icon {
    width: 54px;
    height: 54px;
    background: rgba(108, 99, 255, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.75rem;
    transition: var(--t);
}

.service-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.service-card:hover .service-icon {
    background: rgba(108, 99, 255, 0.2);
    transform: scale(1.1) rotate(-3deg);
}

.service-card h3 {
    font-family: var(--font-h);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.75;
    margin-bottom: 1.5rem;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 1.75rem;
}

.service-tags span {
    background: rgba(108, 99, 255, 0.08);
    border: 1px solid rgba(108, 99, 255, 0.2);
    color: var(--text-2);
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-size: 0.84rem;
    font-weight: 600;
    transition: gap 0.25s var(--ease), color 0.2s;
}

.service-link svg {
    width: 15px;
    height: 15px;
    transition: transform 0.25s var(--ease);
}

.service-link:hover { gap: 0.85rem; color: var(--accent-2); }
.service-link:hover svg { transform: translateX(4px); }

/* ── PORTFOLIO ────────────────────────────────────────────── */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 0.625rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-2);
    padding: 0.5rem 1.3rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--t);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 16px rgba(108,99,255,0.35);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-item {
    border-radius: 18px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.4s var(--ease), opacity 0.4s var(--ease);
}

.portfolio-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 18px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s var(--ease);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.06);
}

/* Placeholder mockup */
.portfolio-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        hsl(var(--h), var(--s), var(--l-start)) 0%,
        hsl(var(--h), calc(var(--s) - 10%), var(--l-end)) 100%
    );
    border: 1px solid hsl(var(--h), var(--s), 22%);
    border-radius: 18px;
    padding: 1.25rem;
    transition: transform 0.5s var(--ease);
    overflow: hidden;
}

.portfolio-item:hover .portfolio-placeholder {
    transform: scale(1.06);
}

.ph-content { opacity: 0.45; }

.ph-nav {
    height: 10px;
    background: hsl(var(--h), var(--s), 40%);
    border-radius: 5px;
    width: 100%;
    margin-bottom: 16px;
}

.ph-hero-block {
    height: 80px;
    background: hsl(var(--h), calc(var(--s) - 5%), 28%);
    border-radius: 10px;
    margin-bottom: 12px;
}

.ph-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.ph-card {
    height: 52px;
    background: hsl(var(--h), calc(var(--s) - 10%), 20%);
    border-radius: 8px;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
        rgba(5, 5, 15, 0.96) 0%,
        rgba(5, 5, 15, 0.5) 50%,
        transparent 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    opacity: 0;
    transition: opacity 0.4s var(--ease);
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }

.portfolio-overlay > * {
    transform: translateY(16px);
    transition: transform 0.4s var(--ease);
}

.portfolio-item:hover .portfolio-overlay > * {
    transform: translateY(0);
}

/* На touch устройства (телефон/таблет) — overlay винаги видим */
@media (hover: none) {
    .portfolio-overlay {
        opacity: 1;
        background: linear-gradient(to top,
            rgba(5, 5, 15, 0.92) 0%,
            rgba(5, 5, 15, 0.4) 55%,
            transparent 100%
        );
    }
    .portfolio-overlay > * {
        transform: translateY(0);
    }
}

.portfolio-overlay > *:nth-child(2) { transition-delay: 0.04s; }
.portfolio-overlay > *:nth-child(3) { transition-delay: 0.08s; }
.portfolio-overlay > *:nth-child(4) { transition-delay: 0.12s; }

.portfolio-category {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-2);
    margin-bottom: 0.35rem;
}

.portfolio-overlay h3 {
    font-family: var(--font-h);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.portfolio-overlay p {
    color: var(--text-2);
    font-size: 0.85rem;
    margin-bottom: 0.875rem;
}

.overlay-btn {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    transition: color 0.2s;
}

.overlay-btn:hover { color: var(--accent-2); }

/* ── TESTIMONIALS ─────────────────────────────────────────── */
.testimonials {
    background: radial-gradient(ellipse 70% 60% at 80% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
    overflow: hidden;
}

.testimonials-wrapper { position: relative; overflow: hidden; }

.testimonials-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.55s var(--ease);
    will-change: transform;
}

.testimonial-card {
    flex: 0 0 calc(50% - 0.75rem);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease);
}

.testimonial-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--glow-sm);
    transform: translateY(-4px);
}

.testimonial-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.testimonial-stars {
    color: #f5b800;
    font-size: 1rem;
    letter-spacing: 0.08em;
}

.quote-icon {
    font-size: 4rem;
    line-height: 1;
    font-family: Georgia, serif;
    color: var(--accent);
    opacity: 0.3;
    margin-top: -1rem;
}

.testimonial-text {
    color: var(--text-2);
    font-size: 0.98rem;
    line-height: 1.85;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.author-info strong {
    display: block;
    font-weight: 600;
    font-size: 0.93rem;
    margin-bottom: 0.1rem;
}

.author-info span {
    color: var(--text-3);
    font-size: 0.82rem;
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.slider-btn {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--t);
}

.slider-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: var(--glow-sm);
    transform: scale(1.08);
}

.slider-btn svg { width: 18px; height: 18px; }

.slider-dots { display: flex; gap: 0.5rem; }

.dot {
    width: 8px;
    height: 8px;
    border-radius: 100px;
    background: var(--border);
    cursor: pointer;
    transition: all 0.35s var(--ease);
}

.dot.active {
    background: var(--accent);
    width: 26px;
}

/* ── CONTACT ──────────────────────────────────────────────── */
.contact {
    background: radial-gradient(ellipse 70% 50% at 0% 50%, rgba(108, 99, 255, 0.07) 0%, transparent 60%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 7rem;
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--t);
}

.contact-icon svg { width: 20px; height: 20px; color: var(--accent); }
.contact-item:hover .contact-icon { background: rgba(108,99,255,0.2); transform: scale(1.08); }

.contact-item div strong {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.contact-item div span {
    display: block;
    color: var(--text-2);
    font-size: 0.88rem;
}

/* Form */
.contact-form-wrapper {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 3rem;
    backdrop-filter: blur(20px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.875rem 1.1rem;
    color: var(--text);
    font-family: var(--font-b);
    font-size: 0.93rem;
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
    outline: none;
    resize: none;
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(108, 99, 255, 0.06);
    box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.12);
}

/* Select */
.select-wrapper {
    position: relative;
}

.select-wrapper select {
    appearance: none;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.875rem 1.1rem;
    padding-right: 2.5rem;
    color: var(--text);
    font-family: var(--font-b);
    font-size: 0.93rem;
    width: 100%;
    cursor: pointer;
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
    outline: none;
}

.select-wrapper select option {
    background: var(--bg-2);
    color: var(--text);
}

.select-wrapper select:focus {
    border-color: var(--accent);
    background: rgba(108, 99, 255, 0.06);
    box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.12);
}

.select-arrow {
    position: absolute;
    right: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--text-3);
    pointer-events: none;
}

/* Success */
.form-success {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    text-align: center;
    color: #4ade80;
    background: rgba(74, 222, 128, 0.08);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    font-size: 0.92rem;
    font-weight: 500;
}

.form-success.visible {
    display: flex;
    animation: fadeInUp 0.5s var(--ease);
}

.form-error {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    text-align: center;
    color: #f87171;
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.25);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    font-size: 0.92rem;
    font-weight: 500;
}

.form-error.visible {
    display: flex;
    animation: fadeInUp 0.5s var(--ease);
}

/* ── FOOTER ───────────────────────────────────────────────── */
/* ── MODAL ───────────────────────────────────────────────────── */
@keyframes modalIn {
    from { opacity: 0; transform: scale(0.85) translateY(30px); }
    to   { opacity: 1; transform: scale(1)    translateY(0);     }
}
@keyframes backdropIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 16, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.modal-backdrop.open {
    opacity: 1;
    pointer-events: all;
}
.modal-box {
    position: relative;
    background: #0D0D1F;
    border-radius: 24px;
    padding: 3rem 2.5rem;
    max-width: 460px;
    width: 100%;
    text-align: center;
    transform: scale(0.85) translateY(30px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
    opacity: 0;
    box-shadow:
        0 0 60px rgba(108, 99, 255, 0.35),
        0 0 120px rgba(0, 212, 255, 0.15),
        inset 0 0 60px rgba(108, 99, 255, 0.04);
}
.modal-backdrop.open .modal-box {
    transform: scale(1) translateY(0);
    opacity: 1;
}
.modal-box::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 26px;
    background: linear-gradient(135deg, #6C63FF, #00D4FF, #bf5af2, #6C63FF);
    background-size: 300% 300%;
    animation: gradient-shift 4s ease infinite;
    z-index: -1;
}
.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: #ffffff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close:hover {
    background: rgba(255,255,255,0.12);
    color: var(--text);
    transform: rotate(90deg);
}
.modal-icon {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    display: block;
    animation: float 3s ease-in-out infinite;
}
.modal-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.modal-text {
    color: #ffffff;
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 1.5rem;
}
.modal-divider {
    width: 60px;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin: 0 auto 1.25rem;
}
.modal-sub {
    color: rgba(255,255,255,0.75);
    font-size: 0.85rem;
    margin-bottom: 1.75rem;
}
.modal-btn { width: 100%; justify-content: center; }

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    padding: 5.5rem 0 2.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .nav-logo { margin-bottom: 1.25rem; }

.footer-brand p {
    color: var(--text-2);
    font-size: 0.88rem;
    line-height: 1.75;
    max-width: 280px;
    margin-bottom: 1.75rem;
}

.social-links { display: flex; gap: 0.75rem; }

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    transition: var(--t);
}

.social-link svg { width: 17px; height: 17px; }

.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-4px);
    box-shadow: var(--glow-sm);
}

.footer-links h4 {
    font-family: var(--font-h);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.footer-links a,
.footer-links span {
    color: var(--text-3);
    font-size: 0.88rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-3);
    font-size: 0.83rem;
}

.footer-legal { display: flex; gap: 2rem; }

.footer-legal a {
    color: var(--text-3);
    font-size: 0.83rem;
    transition: color 0.2s;
}

.footer-legal a:hover { color: var(--text); }

/* ── RESPONSIVE ───────────────────────────────────────────── */
/* ── 1100px ───────────────────────────────── */
@media (max-width: 1100px) {
    .services-grid  { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid    { grid-template-columns: 1fr 1fr; gap: 3rem; }
    .about-grid     { gap: 4rem; }
}

/* ── 900px ────────────────────────────────── */
@media (max-width: 900px) {
    .contact-grid    { grid-template-columns: 1fr; gap: 3rem; }
    .testimonial-card { flex: 0 0 100%; }
    .section-subtitle { font-size: 1rem; }
}

/* ── 768px ────────────────────────────────── */
@media (max-width: 768px) {
    /* Nav */
    .nav-links  { display: none; }
    .hamburger  { display: flex; }

    /* Layout */
    .section    { padding: 5rem 0; }
    .br-desktop { display: none; }

    /* Hero */
    .hero-title        { font-size: clamp(2.4rem, 8vw, 3.2rem); }
    .hero-subtitle     { font-size: 1rem; padding: 0 0.5rem; }
    .hero-stats        { gap: 2rem; }
    .stat-number       { font-size: 2rem; }
    .hero-scroll       { display: none; }
    .orb-1             { width: 300px; height: 300px; left: -80px; }
    .orb-2             { width: 250px; height: 250px; right: -60px; }

    /* About */
    .about-grid          { grid-template-columns: 1fr; gap: 3rem; }
    .about-image-wrapper { height: 300px; }
    .card-1  { top: 5%;  left: 3%;  }
    .card-2  { top: 35%; right: 3%; }
    .card-3  { bottom: 18%; left: 10%; }
    .card-4  { top: 62%; right: 8%; }

    /* Services */
    .services-grid { grid-template-columns: 1fr; }

    /* Portfolio */
    .portfolio-grid { grid-template-columns: 1fr 1fr; }

    /* Testimonials */
    .quote-icon         { font-size: 2.5rem; }
    .testimonial-card   { padding: 1.75rem; }
    .testimonial-text   { font-size: 0.93rem; }

    /* Footer */
    .footer-grid   { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

/* ── 560px (телефон) ─────────────────────── */
@media (max-width: 560px) {
    /* Layout */
    .container { padding: 0 1.1rem; }
    .section   { padding: 4rem 0; }
    .section-header { margin-bottom: 3rem; }

    /* Hero */
    .hero-title    { font-size: clamp(2rem, 9vw, 2.8rem); }
    .hero-badge    { font-size: 0.78rem; padding: 0.4rem 0.9rem; }
    .hero-cta      { flex-direction: column; align-items: stretch; }
    .btn           { justify-content: center; }
    .hero-stats    { flex-direction: column; gap: 1rem; }
    .stat-divider  { width: 50px; height: 1px; }
    .stat-number   { font-size: 1.8rem; }
    .orb-1         { width: 200px; height: 200px; }
    .orb-2         { width: 180px; height: 180px; }

    /* About */
    .about-image-wrapper { height: 240px; }
    .stack-card {
        font-size: 0.78rem;
        padding: 0.75rem 1rem;
        gap: 0.5rem;
    }
    .card-icon { font-size: 1.1rem; }

    /* Services */
    .service-card { padding: 1.75rem; }

    /* Portfolio */
    .portfolio-grid  { grid-template-columns: 1fr; }
    .portfolio-filter { gap: 0.5rem; }
    .filter-btn      { padding: 0.4rem 1rem; font-size: 0.8rem; }

    /* Testimonials */
    .testimonial-card    { padding: 1.5rem; }
    .slider-btn          { width: 38px; height: 38px; }

    /* Contact */
    .contact-form-wrapper { padding: 1.75rem 1.25rem; }
    .form-row             { grid-template-columns: 1fr; }
    .form-group input,
    .form-group select,
    .form-group textarea  { font-size: 16px; /* предотвратява zoom на iOS */ }

    /* Footer */
    .footer-brand p  { max-width: 100%; }
    .social-links    { flex-wrap: wrap; }
    .footer-legal    { gap: 1.25rem; }
}