@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url(../fonts/inter-cyrillic-ext.woff2) format('woff2');
    unicode-range:
        U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url(../fonts/inter-cyrillic.woff2) format('woff2');
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url(../fonts/inter-latin-ext.woff2) format('woff2');
    unicode-range:
        U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
        U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
        U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
    src: url(../fonts/inter-latin.woff2) format('woff2');
    unicode-range:
        U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
        U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
        U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ===== CSS Custom Properties (Design Tokens) ===== */
:root {
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: #1a1a25;
    --color-bg-card-hover: #22223a;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --color-text: #f0f0f5;
    --color-text-secondary: #9898a8;
    --color-text-muted: #6a6a7a;
    --color-accent: #4f7df5;
    --color-accent-light: #6b94ff;
    --color-accent-rgb: 79, 125, 245;
    --color-accent-glow: rgba(var(--color-accent-rgb), 0.25);
    --color-gradient-start: #4f7df5;
    --color-gradient-end: #a855f7;
    --header-bg: rgba(10, 10, 15, 0.75);
    --header-bg-scroll: rgba(10, 10, 15, 0.92);
    --font-family:
        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --header-height: 72px;
    --max-width: 1140px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Light Theme ===== */
[data-theme='light'] {
    --color-bg: #f5f5f8;
    --color-bg-elevated: #eaeaef;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #f0f0f5;
    --color-surface: rgba(0, 0, 0, 0.03);
    --color-border: rgba(0, 0, 0, 0.08);
    --color-border-hover: rgba(0, 0, 0, 0.15);
    --color-text: #1a1a2e;
    --color-text-secondary: #555568;
    --color-text-muted: #8888a0;
    --color-accent: #3b66d9;
    --color-accent-light: #4a75e6;
    --color-accent-rgb: 59, 102, 217;
    --color-accent-glow: rgba(var(--color-accent-rgb), 0.2);
    --color-gradient-start: #4a75e6;
    --color-gradient-end: #9333ea;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
    --header-bg: rgba(245, 245, 248, 0.8);
    --header-bg-scroll: rgba(245, 245, 248, 0.95);
}

[data-theme='light'] img.MainPageImage {
    filter: brightness(0.6);
}

[data-theme='light'] .HeroTitle {
    background: linear-gradient(135deg, #fff 0%, #c8daff 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

[data-theme='light'] .EmailLink:hover {
    color: var(--color-text);
}

[data-theme='light'] a.HeaderSectionLink--email:hover {
    color: var(--color-text);
}

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

html {
    font-size: 16px;
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    height: 100%;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    min-height: 100%;
    line-height: 1.6;
    overflow-x: hidden;
}

main {
    padding-bottom: 80px;
}

.Wrapper {
    min-height: 100vh;
}

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

/* ===== Skip to Content ===== */
.SkipToContent {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 10000;
    padding: 12px 24px;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.SkipToContent:focus {
    left: 50%;
    transform: translateX(-50%);
}

/* ===== Header ===== */
header {
    width: 100%;
    background: var(--header-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background var(--transition-fast);
}

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

.LogoLink {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

img.CompanyLogo {
    width: 59px;
    height: 60px;
    border: 0;
    transition: opacity var(--transition-fast);
}

img.CompanyLogo:hover {
    opacity: 0.8;
}

.NavLinks {
    display: flex;
    align-items: center;
    gap: 8px;
}

a.HeaderSectionLink {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition:
        color var(--transition-fast),
        background var(--transition-fast);
    position: relative;
}

a.HeaderSectionLink:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

a.HeaderSectionLink--email {
    color: var(--color-accent-light);
    background: rgba(var(--color-accent-rgb), 0.08);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
}

a.HeaderSectionLink--email:hover {
    background: rgba(var(--color-accent-rgb), 0.15);
    color: #fff;
}

/* ===== Theme Toggle ===== */
.ThemeToggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
    flex-shrink: 0;
    outline: none;
    margin-left: 4px;
}

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

.ThemeToggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.ThemeToggle__icon {
    position: absolute;
    transition:
        opacity 0.3s ease,
        transform 0.3s ease;
}

/* Dark theme (default): show moon, hide sun */
.ThemeToggle__icon--sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.ThemeToggle__icon--moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Light theme: show sun, hide moon */
[data-theme='light'] .ThemeToggle__icon--sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme='light'] .ThemeToggle__icon--moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

/* ===== Hero Section ===== */
.MainPage {
    width: 100%;
    margin: 0 auto;
}

.HeroOverlay {
    position: relative;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
}

.HeroOverlay .electric-lines {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.4;
}

.HeroOverlay .electric-lines path {
    fill: none;
    stroke-width: 1;
    stroke-dasharray: 80 400;
    stroke-linecap: round;
}

.HeroOverlay .electric-lines .line1 {
    stroke: rgba(var(--color-accent-rgb), 0.8);
    stroke-dashoffset: 480;
    animation: flowLine 4s linear infinite;
}

.HeroOverlay .electric-lines .line2 {
    stroke: rgba(168, 85, 247, 0.7);
    stroke-dashoffset: 480;
    animation: flowLine 5s linear 1s infinite;
}

.HeroOverlay .electric-lines .line3 {
    stroke: rgba(var(--color-accent-rgb), 0.6);
    stroke-dashoffset: 480;
    animation: flowLine 6s linear 2s infinite;
}

.HeroOverlay .electric-lines .line4 {
    stroke: rgba(168, 85, 247, 0.5);
    stroke-dashoffset: 480;
    animation: flowLine 4.5s linear 0.5s infinite;
}

.HeroOverlay .electric-lines .line5 {
    stroke: rgba(var(--color-accent-rgb), 0.5);
    stroke-dashoffset: 480;
    animation: flowLine 5.5s linear 3s infinite;
}

@keyframes flowLine {
    to {
        stroke-dashoffset: -480;
    }
}

img.MainPageImage {
    width: 100%;
    height: 80vh;
    object-fit: cover;
    display: block;
    filter: brightness(0.3);
}

.HeroContent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.HeroTitle {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(
        135deg,
        #fff 0%,
        var(--color-accent-light) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.HeroSubtitle {
    font-size: clamp(1rem, 2vw, 1.35rem);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    margin-bottom: 32px;
    letter-spacing: 0.01em;
}

.HeroButton {
    display: inline-block;
    padding: 14px 36px;
    background: linear-gradient(
        135deg,
        var(--color-gradient-start),
        var(--color-gradient-end)
    );
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transform: translateY(0);
    transition:
        transform var(--transition-smooth),
        box-shadow var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(var(--color-accent-rgb), 0.35);
    letter-spacing: 0.01em;
    will-change: transform, box-shadow;
}

.HeroButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(var(--color-accent-rgb), 0.5);
}

/* ===== Sections - Generic ===== */
.Services-Games,
.Services-CRM,
.Portfolio,
.CompanyDetails {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 32px;
    scroll-margin-top: calc(var(--header-height) + 20px);
}

.SectionHeader {
    text-align: center;
    margin-bottom: 48px;
}

.SectionTitle {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 12px;
}

.SectionDescription {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.SubsectionTitle {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 40px 0 20px;
    letter-spacing: -0.01em;
}

.Note {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

/* ===== Development Stages ===== */
.StagesGrid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.DevelopmentStageElement {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
    cursor: default;
}

.DevelopmentStageElement:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateX(4px);
}

.StageInfo {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
    min-width: 0;
}

.StageNumber {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.DevelopmentStageElementWorkText {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 0;
    line-height: 1.4;
}

.DevelopmentStageElementPriceText {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-accent-light);
    white-space: nowrap;
    flex-shrink: 0;
}

/* ===== Tech Stack Tags ===== */
.TechStack {
    margin: 40px 0;
}

.TechTags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.TechTag {
    display: inline-block;
    padding: 8px 18px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition:
        border-color var(--transition-fast),
        color var(--transition-fast),
        background var(--transition-fast);
}

.TechTag:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-light);
    background: rgba(var(--color-accent-rgb), 0.06);
}

/* ===== Portfolio Cards ===== */
.PortfolioCardList {
    display: grid;
    grid-template-columns: repeat(auto-fit, 340px);
    justify-content: center;
    gap: 24px;
    margin-bottom: 48px;
}

.PortfolioCard {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition:
        border-color var(--transition-smooth),
        transform var(--transition-smooth),
        box-shadow var(--transition-smooth);
}

.PortfolioCard:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-card);
}

.PortfolioCard:hover .PortfolioCardImage {
    transform: scale(1.05);
}

.PortfolioCardImageWrapper {
    position: relative;
    width: 100%;
    max-width: 340px;
    height: 254px;
    overflow: hidden;
}

.PortfolioCardImageWrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        105deg,
        transparent 40%,
        rgba(255, 255, 255, 0.15) 50%,
        transparent 60%
    );
    transition: none;
    z-index: 1;
    pointer-events: none;
}

.PortfolioCard:hover .PortfolioCardImageWrapper::after {
    left: 130%;
    transition: left 0.6s ease;
}

img.PortfolioCardImage {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: saturate(0.3) brightness(0.9);
    transition:
        transform var(--transition-smooth),
        filter var(--transition-smooth);
}

.PortfolioCard:hover .PortfolioCardImage {
    transform: scale(1.05);
    filter: saturate(1) brightness(1);
}

.PortfolioCardBody {
    padding: 16px 24px 20px;
    border-top: 1px solid var(--color-border);
}

p.PortfolioCardName {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 4px;
}

p.PortfolioCardDesc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.5;
}

/* ===== Task List ===== */
.TaskList {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.TaskList li {
    position: relative;
    padding: 14px 14px 14px 36px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    transition:
        background var(--transition-fast),
        color var(--transition-fast);
}

.TaskList li::before {
    content: '';
    position: absolute;
    left: 16px;
    top: 22px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
}

.TaskList li:hover {
    background: var(--color-bg-card);
    color: var(--color-text);
}

/* ===== Company Details Grid ===== */
.DetailsGrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.DetailCard {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition:
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.DetailCard:hover {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
}

.DetailCardTitle {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent-light);
    margin-bottom: 12px;
}

.DetailCardContent p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 4px;
}

.EmailLink {
    color: var(--color-accent-light);
    transition: color var(--transition-fast);
}

.EmailLink:hover {
    color: #fff;
}

/* ===== Footer ===== */
footer {
    width: 100%;
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
}

.FooterSection {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.FooterText {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: center;
}

/* ===== Fade-in Animation ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .electric-lines {
        display: none;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Burger Menu ===== */
.BurgerButton {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    cursor: pointer;
    z-index: 1001;
}

.BurgerButton__line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition:
        transform 0.3s ease,
        opacity 0.3s ease;
}

.BurgerButton--open .BurgerButton__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.BurgerButton--open .BurgerButton__line:nth-child(2) {
    opacity: 0;
}

.BurgerButton--open .BurgerButton__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .HeaderSection {
        padding: 0 20px;
        height: 60px;
    }

    img.CompanyLogo {
        width: 30px;
        height: 30px;
    }

    .BurgerButton {
        display: flex;
    }

    .NavLinks {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-elevated);
        border-bottom: 1px solid var(--color-border);
        padding: 16px;
        gap: 8px;
    }

    .NavLinks--open {
        display: flex;
    }

    .Services-Games,
    .Services-CRM,
    .Portfolio,
    .CompanyDetails {
        padding: 60px 20px;
    }

    .DevelopmentStageElement {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        overflow: hidden;
    }

    .StageInfo {
        justify-content: center;
        text-align: center;
        gap: 10px;
        padding: 16px;
    }

    .DevelopmentStageElementPriceText {
        display: block;
        padding: 10px 16px;
        text-align: center;
        border-top: 1px solid var(--color-border);
        background: var(--color-surface);
    }

    .DetailsGrid {
        grid-template-columns: 1fr;
    }

    img.MainPageImage {
        height: 60vh;
    }

    .HeroButton {
        padding: 12px 28px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .SectionTitle {
        font-size: 1.5rem;
    }
}