/* ============================================================
   ДАНИЛ ГРИБАНОВ — Главная страница
   ============================================================ */

/* === VARIABLES === */
:root {
    --bg:            #fbfbfb;
    --bg-soft:       #f4f4f4;
    --bg-muted:      #eeeeee;
    --border:        #e4e4e4;
    --text:          #1a1a1a;
    --text-muted:    #666666;
    --accent:        #715bff;
    --accent-hover:  #5d48e8;
    --accent-light:  #f0eeff;
    --cta:           #ff5d5b;
    --cta-hover:     #e84e4c;
    --white:         #ffffff;

    --font: 'Montserrat', system-ui, sans-serif;
    --r-sm: 8px;
    --r-md: 16px;
    --r-lg: 20px;
    --r-xl: 25px;
    --r-pill: 60px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.10);

    --container: 1100px;
    --nav-h: 68px;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* === LAYOUT === */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* === TYPOGRAPHY === */
h1 {
    font-size: clamp(1.875rem, 5vw, 3.25rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: var(--text);
}
h2 {
    font-size: clamp(1.375rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: var(--text);
}
h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text);
}
p { color: var(--text-muted); line-height: 1.7; font-weight: 500; }

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--r-pill);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    line-height: 1;
    transition: all 0.2s ease;
    white-space: nowrap;
    cursor: pointer;
}
.btn--primary {
    background: var(--cta);
    color: #fff;
}
.btn--primary:hover {
    background: var(--cta-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,93,91,0.35);
}
.btn--outline {
    border: 2px solid var(--border);
    color: var(--text);
}
.btn--outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.btn--white {
    background: var(--white);
    color: var(--accent);
    font-weight: 700;
}
.btn--white:hover {
    background: #f0eeff;
    transform: translateY(-2px);
}
.btn--sm { padding: 10px 20px; font-size: 0.75rem; }

/* === LABELS === */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: var(--r-pill);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.badge--green {
    background: #F0FDF4;
    color: #16A34A;
}
.journey__content .badge { margin-bottom: 10px; }
.section-tag {
    display: block;
    font-size: 0.6875rem;
    font-weight: 800;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 12px;
}
.section-sub {
    font-size: 1.0625rem;
    color: var(--text-muted);
    margin-top: 8px;
    margin-bottom: 40px;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(251,251,251,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav__logo {
    font-size: 0.8125rem;
    font-weight: 800;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.nav__right {
    display: flex;
    align-items: center;
    gap: 16px;
}
.nav__links {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav__links li a {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color 0.2s;
}
.nav__links li a:hover { color: var(--text); }
.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.nav__burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.25s;
}

/* Mobile nav */
.nav__mobile {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    flex-direction: column;
    gap: 4px;
}
.nav__mobile.is-open { display: flex; }
.nav__mobile a {
    padding: 12px 0;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
.nav__mobile a:last-child { border-bottom: none; }

/* ============================================================
   ACCENT TEXT
   ============================================================ */
.text-accent { color: var(--accent); }
.text-accent-italic { color: var(--accent); font-style: italic; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: 90px 0 100px;
    background: linear-gradient(135deg, #715bff 0%, #4f38cc 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -80px;
    width: 520px;
    height: 520px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -160px;
    left: -60px;
    width: 420px;
    height: 420px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
    pointer-events: none;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero__text .badge {
    margin-bottom: 28px;
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.25);
}
.hero__text h1 {
    margin-bottom: 24px;
    color: #fff;
}
.hero__text p {
    font-size: 1.0625rem;
    color: rgba(255,255,255,0.82);
    margin-bottom: 40px;
    max-width: 480px;
    font-weight: 500;
}
.hero__cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.hero__photo { flex-shrink: 0; }
.hero__photo__img {
    width: 230px;
    height: 230px;
    border-radius: var(--r-xl);
    object-fit: cover;
    object-position: center top;
    border: 3px solid rgba(255,255,255,0.2);
    box-shadow: 0 16px 48px rgba(0,0,0,0.25);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
    padding: 90px 0;
    background: var(--white);
}
.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.about__text .section-tag { margin-bottom: 16px; }
.about__text h2 { margin-bottom: 24px; }
.about__text p {
    font-size: 1rem;
    margin-bottom: 16px;
}
.about__text p:last-child { margin-bottom: 0; }
.about__facts {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 2px solid var(--border);
    border-radius: var(--r-xl);
    overflow: hidden;
    background: var(--bg);
}
.about__fact {
    padding: 28px 32px;
    border-bottom: 2px solid var(--border);
}
.about__fact:last-child { border-bottom: none; }
.about__fact__title {
    font-size: 1.125rem;
    font-weight: 900;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}
.about__fact__desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================================
   JOURNEY
   ============================================================ */
.journey {
    padding: 90px 0;
    background: var(--bg-soft);
}
.journey > .container > .section-tag { margin-bottom: 12px; }
.journey > .container > h2 { margin-bottom: 56px; }

.journey__timeline {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-left: 0;
}
.journey__item {
    position: relative;
    display: block;
    padding: 28px 32px;
    background: var(--white);
    border: 2px solid var(--border);
    border-left: 5px solid var(--accent);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}
.journey__item:hover { box-shadow: var(--shadow-md); }
.journey__item--last { padding-bottom: 28px; }
.journey__year {
    position: absolute;
    top: 28px;
    right: 32px;
    font-size: 0.6875rem;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.journey__dot { display: none; }
.journey__item:has(.journey__dot--accent) {
    border-left-color: #16A34A;
}
.journey__item:has(.journey__dot--accent) .journey__year {
    color: #16A34A;
}
.journey__content h3 { margin-bottom: 8px; }
.journey__content p { font-size: 0.9375rem; }

.journey__cta {
    margin-top: 32px;
    padding-top: 40px;
    border-top: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.journey__cta p {
    font-size: 1rem;
    color: var(--text-muted);
    margin: 0;
}

@media (max-width: 600px) {
    .journey__item { padding: 20px; }
    .journey__year { top: 20px; right: 20px; }
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects {
    padding: 90px 0;
    background: var(--bg-soft);
}
.projects > .container > .section-tag { margin-bottom: 12px; }
.projects > .container > h2 { margin-bottom: 40px; }

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

.projects__card {
    background: var(--white);
    border: 2px solid var(--border);
    border-left: 5px solid var(--accent);
    border-radius: var(--r-xl);
    padding: 36px 40px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    transition: box-shadow 0.2s;
}
.projects__card:hover { box-shadow: var(--shadow-md); }

.projects__card__info .badge { margin-bottom: 12px; }
.projects__card__info h3 { margin-bottom: 8px; }
.projects__card__info p { font-size: 0.9375rem; }

.projects__card__actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
    flex-shrink: 0;
}

.projects__versions {
    display: flex;
    gap: 10px;
}

.projects__video {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color 0.2s;
}
.projects__video:hover { color: var(--accent); }

@media (max-width: 768px) {
    .projects__card {
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 20px;
        gap: 24px;
    }
    .projects__card__actions { align-items: flex-start; }
}

/* ============================================================
   PRODUCT
   ============================================================ */
.product {
    padding: 90px 0;
    background: var(--white);
}
.product > .container > .section-tag { margin-bottom: 20px; }
.product__card {
    padding: 64px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-top: 5px solid var(--accent);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-md);
}
.product__card__top .badge { margin-bottom: 24px; }
.product__card__top h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 900;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}
.product__card__top p {
    font-size: 1.0625rem;
    margin-bottom: 40px;
}
.product__transform {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 16px;
    align-items: center;
    margin-bottom: 32px;
}
.product__point {
    padding: 36px 40px;
    border-radius: var(--r-lg);
    border: 2px solid var(--border);
}
.product__point--a { background: var(--white); }
.product__point--b {
    background: var(--accent-light);
    border-color: rgba(113,91,255,0.2);
}
.product__point__label {
    font-size: 0.625rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 18px;
}
.product__point--b .product__point__label { color: var(--accent); }
.product__point ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.product__point ul li {
    font-size: 1.0625rem;
    color: var(--text);
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
    font-weight: 500;
}
.product__point--a ul li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--text-muted);
}
.product__point--b ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.product__arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
    text-align: center;
    flex-shrink: 0;
}
.product .btn--primary { width: auto; }

@media (max-width: 768px) {
    .product__card { padding: 28px 20px; }
    .product__transform { grid-template-columns: 1fr; }
    .product__arrow { transform: rotate(90deg); margin: -4px auto; }
}

/* ============================================================
   CTA BLOCK
   ============================================================ */
.cta-block {
    padding: 90px 0;
    background: var(--accent);
}
.cta-block__inner {
    text-align: center;
    max-width: 580px;
    margin: 0 auto;
}
.cta-block__inner h2 {
    color: #fff;
    margin-bottom: 20px;
}
.cta-block__inner p {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
    margin-bottom: 40px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    padding: 32px 0;
    border-top: 2px solid var(--border);
    background: var(--bg);
}
.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer__inner > span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
}
.footer__links { display: flex; gap: 24px; }
.footer__links a {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    transition: color 0.2s;
}
.footer__links a:hover { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .about__inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__right > .btn { display: none; }
    .nav__burger { display: flex; }

    .hero { padding: 56px 0 64px; }
    .hero__inner { grid-template-columns: 1fr; gap: 0; }
    .hero__photo { order: -1; margin-bottom: 32px; }
    .hero__photo__img { width: 100px; height: 100px; border-radius: var(--r-lg); }

    .about { padding: 64px 0; }
    .cta-block { padding: 64px 0; }
}

@media (max-width: 480px) {
    .hero__cta { flex-direction: column; }
    .hero__cta .btn { width: 100%; justify-content: center; }
    .footer__inner { flex-direction: column; gap: 12px; text-align: center; }
}