:root {
    --bg-main: #0a0a0a;
    --bg-surface: #141414;
    --bg-surface-hover: #1c1c1c;
    --text-primary: #ffffff;
    --text-secondary: #8a8a8a;
    --border-color: #2a2a2a;
    --accent: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.bg-grid {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background-image:
        linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px; z-index: -1; pointer-events: none;
    mask-image: radial-gradient(circle at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section {
    padding: 80px 0;
}

/* Sticky Header */
.sticky-header {
    position: fixed; top: -100px; left: 0; width: 100%;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: top 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sticky-header.show { top: 0; }

.sticky-container {
    max-width: 1100px; margin: 0 auto; padding: 12px 24px;
    display: flex; justify-content: space-between; align-items: center;
}

.sticky-name { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.5px; white-space: nowrap; }

.sticky-contacts {
    display: flex;
    gap: 20px;
    align-items: center; /* Центрирование по вертикали на ПК */
}

/* Ссылки-контакты в шапке */
.sticky-contacts .sticky-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.sticky-contacts .sticky-link:hover {
    color: var(--text-primary);
}

/* Скрываем внутренние иконки текстовых контактов на ПК */
.sticky-contacts .sticky-link svg {
    display: none;
}

.sticky-text {
    display: inline;
}

/* Стилизация кнопки резюме в шапке для ПК */
.sticky-header .btn.sticky-resume-btn {
    height: 38px;
    padding: 0 16px;
    font-size: 0.85rem;
    border-radius: 4px;
    background: var(--text-primary);
    color: var(--bg-main);
    display: inline-flex;
    align-items: center;
}

.sticky-header .btn.sticky-resume-btn svg {
    display: inline-block;
    margin-right: 6px;
}

.sticky-resume-text {
    display: inline;
}

/* Типографика */
.title { font-size: 5rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 20px; text-transform: uppercase; }
.subtitle { font-size: 1.4rem; color: var(--text-secondary); font-weight: 400; margin-bottom: 30px; }
.section-title { font-size: 2.5rem; font-weight: 700; margin-bottom: 60px; letter-spacing: -0.02em; border-bottom: 1px solid var(--border-color); padding-bottom: 20px; }

/* Герой */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 120px;
    padding-bottom: 20px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.badge { display: inline-block; padding: 6px 12px; border: 1px solid var(--border-color); border-radius: 20px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 30px; color: var(--text-secondary); }
.hero-info { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 40px; display: flex; align-items: center; gap: 15px; }
.dot { font-size: 0.8rem; color: var(--border-color); }
.salary { color: var(--text-primary); font-weight: 600; }

.contacts {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
    align-items: center;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    height: 52px;
    white-space: nowrap;
}

.btn-primary { background: var(--text-primary); color: var(--bg-main); }
.btn-primary:hover { background: #d4d4d4; transform: translateY(-2px); }
.btn-outline { border: 1px solid var(--border-color); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--text-primary); background: rgba(255,255,255,0.05); }
.btn-email {
    width: 52px;
    height: 52px;
    padding: 0;
    flex-shrink: 0;
}

/* Фотография */
.hero-image-wrapper { position: relative; width: 100%; max-width: 450px; margin: 0 auto; }
.hero-photo { width: 100%; height: auto; border-radius: 8px; filter: grayscale(100%) contrast(1.1) brightness(0.9); position: relative; z-index: 2; box-shadow: 0 30px 60px rgba(0,0,0,0.8); transition: transform 0.5s ease, filter 0.5s ease; }
.hero-photo:hover { transform: scale(1.02); filter: grayscale(50%) contrast(1.1) brightness(1); }
.photo-backdrop { position: absolute; top: 20px; left: 20px; width: 100%; height: 100%; border: 1px solid var(--border-color); border-radius: 8px; z-index: 1; }

/* Статистика */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stat-card { background: var(--bg-surface); border: 1px solid var(--border-color); padding: 40px 30px; border-radius: 8px; transition: all 0.3s ease; display: flex; flex-direction: column; justify-content: center; }
.stat-card:hover { background: var(--bg-surface-hover); border-color: #4a4a4a; transform: translateY(-5px); }
.stat-wide { grid-column: span 2; }
.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 15px;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    display: inline-block;
}
.stat-desc, .stat-label { color: var(--text-secondary); font-size: 1rem; line-height: 1.5; }
.stat-label { margin-bottom: 20px; }

/* Было/Стало */
.before-after { display: flex; align-items: center; gap: 30px; }
.ba-block { display: flex; flex-direction: column; }
.ba-title { font-size: 0.8rem; text-transform: uppercase; color: var(--text-secondary); letter-spacing: 1px; margin-bottom: 5px; }
.ba-was .ba-value { font-size: 2rem; color: #555; text-decoration: line-through; font-weight: 600; }
.ba-now .ba-value { font-size: 3.5rem; color: var(--text-primary); font-weight: 800; line-height: 1; }
.ba-arrow { font-size: 2rem; color: var(--border-color); }

/* График шлюза */
.gateway-content { display: flex; justify-content: space-between; align-items: center; }
.mini-chart { display: flex; align-items: flex-end; gap: 6px; height: 80px; width: 150px; }
.bar {
    flex: 1; background: var(--border-color); border-radius: 2px 2px 0 0;
    animation: bar-pulse 2s infinite ease-in-out alternate;
    animation-delay: var(--delay);
}
.bar.active { background: var(--text-primary); box-shadow: 0 0 10px rgba(255,255,255,0.5); }

@keyframes bar-pulse {
    0% { transform: scaleY(0.7); opacity: 0.5; }
    100% { transform: scaleY(1.1); opacity: 1; }
}

/* CTA Блок */
.cta-section { padding: 40px 0 100px; }
.cta-card {
    background: linear-gradient(145deg, #121212 0%, #1a1a1a 100%);
    border: 1px solid var(--border-color); border-radius: 12px;
    padding: 60px 40px; text-align: center; position: relative; overflow: hidden;
}
.cta-pulse {
    position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
    width: 600px; height: 600px; background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    z-index: 0; pointer-events: none;
}
.cta-title { font-size: 2.2rem; font-weight: 700; margin-bottom: 20px; position: relative; z-index: 1; }
.cta-desc { color: var(--text-secondary); max-width: 600px; margin: 0 auto 30px; font-size: 1.1rem; position: relative; z-index: 1; }
.cta-card .btn { position: relative; z-index: 1; }

/* Опыт работы */
.timeline { position: relative; max-width: 900px; }
.timeline::before { content: ''; position: absolute; top: 0; left: 5px; width: 1px; height: 100%; background: var(--border-color); }
.timeline-item { position: relative; padding-left: 50px; margin-bottom: 80px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-marker { position: absolute; left: 0; top: 8px; width: 11px; height: 11px; background: var(--bg-main); border: 2px solid var(--text-primary); border-radius: 50%; transition: background 0.3s ease; }
.timeline-item:hover .timeline-marker { background: var(--text-primary); }
.timeline-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.timeline-header h4 { font-size: 1.4rem; font-weight: 600; margin-bottom: 5px; }
.company { color: var(--text-secondary); font-size: 1rem; }
.timeline-date { font-size: 0.9rem; padding: 4px 12px; border: 1px solid var(--border-color); border-radius: 20px; color: var(--text-secondary); }
.job-tasks { list-style: none; color: #b0b0b0; }
.job-tasks li { position: relative; padding-left: 20px; margin-bottom: 12px; }
.job-tasks li::before { content: ''; position: absolute; left: 0; top: 10px; width: 6px; height: 1px; background: var(--text-secondary); }
.job-tasks strong { color: var(--text-primary); }

/* Навыки */
.skills-container { display: flex; flex-wrap: wrap; gap: 15px; }
.skill-tag { background: transparent; border: 1px solid var(--border-color); padding: 14px 24px; border-radius: 4px; font-size: 0.95rem; color: var(--text-secondary); transition: all 0.3s ease; }
.skill-tag:hover { border-color: var(--text-primary); color: var(--text-primary); background: rgba(255,255,255,0.02); transform: translateY(-2px); }

/* Футер */
.footer { border-top: 1px solid var(--border-color); padding: 80px 0; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.footer h4 { font-size: 1.2rem; margin-bottom: 20px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.text-muted { color: var(--text-secondary); font-size: 0.9rem; }

/* Анимации */
.animate-on-scroll { opacity: 0; transform: translateY(40px); transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
    .contacts {
        flex-wrap: wrap;
    }
}

/* Адаптив */
@media (max-width: 900px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-info { justify-content: center; }
    .contacts {
        flex-wrap: wrap;
    }
    .title { font-size: 3.5rem; }
    .photo-backdrop { display: none; }
    .stats-grid { grid-template-columns: 1fr; }
    .stat-wide { grid-column: span 1; }
    .gateway-content { flex-direction: column; gap: 20px; align-items: flex-start; }
    .before-after { flex-direction: column; gap: 10px; text-align: center; }
    .ba-arrow { transform: rotate(90deg); }
    .timeline-header { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }

    /* Мобильные стили для липкой шапки */
    .sticky-header {
        background: rgba(10, 10, 10, 0.95);
    }

    .sticky-container {
        padding: 10px 16px;
    }

    .sticky-name {
        font-size: 0.95rem;
        white-space: nowrap;
    }

    /* Расположение кнопок-иконок на мобильных */
    .sticky-contacts {
        display: flex;
        gap: 6px;
        align-items: center;
    }

    /* Скрываем весь текст внутри кнопок шапки */
    .sticky-text,
    .sticky-resume-text {
        display: none !important;
    }

    /* Показываем SVG иконки для всех кнопок */
    .sticky-contacts .sticky-link svg {
        display: block !important;
        margin: 0;
    }

    /* Оформление ссылок (TG, телефон, почта) как круглых/скругленных кнопок */
    .sticky-contacts .sticky-link {
        width: 36px;
        height: 36px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border-color);
        color: var(--text-primary);
        border-radius: 6px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    }

    .sticky-contacts .sticky-link:active {
        transform: scale(0.95);
        background: rgba(255, 255, 255, 0.12);
        border-color: var(--text-primary);
    }

    /* Стилизация кнопки резюме как квадратной иконки на мобильных */
    .sticky-header .btn.sticky-resume-btn {
        height: 36px;
        width: 36px;
        padding: 0;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 6px;
        background: var(--text-primary);
        color: var(--bg-main);
        flex-shrink: 0;
        border: none;
        transition: transform 0.2s ease;
    }

    .sticky-header .btn.sticky-resume-btn:active {
        transform: scale(0.95);
    }

    .sticky-header .btn.sticky-resume-btn svg {
        margin: 0 !important;
    }
}

/* Оптимизация для мобильных устройств шириной менее 600px */
@media (max-width: 600px) {
    /* Ограничиваем отступы в карточках, освобождая место для чисел */
    .stat-card {
        padding: 24px 20px;
    }

    /* Уменьшаем размер огромных шрифтов, предотвращая вылезание за экран */
    .stat-number {
        font-size: 2.2rem;
    }

    .ba-was .ba-value {
        font-size: 1.5rem;
    }

    .ba-now .ba-value {
        font-size: 2.2rem;
    }
}

/* Экстремально узкие мобильные экраны (менее 480px) */
@media (max-width: 480px) {
    .sticky-container {
        padding: 10px 12px; /* Минимальные боковые отступы */
    }

    .sticky-name {
        font-size: 0.85rem; /* Более компактный шрифт имени */
    }

    .sticky-contacts {
        gap: 4px; /* Плотный зазор между кнопками */
    }

    /* Уменьшаем кнопки до 32px для бесконфликтной сборки в один ряд */
    .sticky-contacts .sticky-link {
        width: 32px;
        height: 32px;
    }

    .sticky-contacts .sticky-link svg {
        width: 16px;
        height: 16px;
    }

    .sticky-header .btn.sticky-resume-btn {
        width: 32px;
        height: 32px;
    }

    .sticky-header .btn.sticky-resume-btn svg {
        width: 16px;
        height: 16px;
    }
    .cases-grid {
        grid-template-columns: 1fr; /* Принудительно выстраиваем в 1 колонку без жестких ограничений по ширине */
    }

    .case-card {
        padding: 20px; /* Снижаем внутренние отступы карточек на узких экранах, чтобы текст не теснился */
    }
}

/* Эффект "удара" при завершении счета */
@keyframes number-impact {
    0% { transform: scale(1); }
    30% {
        transform: scale(1.15);
        color: #ffffff;
        text-shadow: 0 0 25px rgba(255, 255, 255, 0.7);
    }
    50% { transform: scale(0.95); }
    75% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.impact-effect {
    animation: number-impact 0.6s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 20px; }
.about-text strong { color: var(--text-primary); }
.about-formula { background: var(--bg-surface); padding: 40px; border-radius: 12px; border: 1px solid var(--border-color); text-align: center; }
.formula-item { font-size: 1.2rem; font-weight: 600; padding: 15px; border: 1px dashed var(--text-secondary); border-radius: 8px; color: var(--text-secondary); }
.formula-plus { font-size: 2rem; margin: 10px 0; color: var(--border-color); }
.formula-result { font-size: 1.4rem; font-weight: 800; padding: 20px; background: rgba(255,255,255,0.05); border-radius: 8px; color: var(--text-primary); margin-top: 10px; border: 1px solid var(--text-primary); box-shadow: 0 0 20px rgba(255,255,255,0.1); }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); /* Изменено с 300px на 260px для безопасного вписывания */
    gap: 24px;
}
.case-card { background: var(--bg-surface); padding: 30px; border-radius: 8px; border: 1px solid var(--border-color); transition: transform 0.3s ease; }
.case-card:hover { transform: translateY(-5px); border-color: var(--text-primary); }

.case-icon-wrapper {
    margin-bottom: 24px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.case-card:hover .case-icon-wrapper {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.case-card h4 { font-size: 1.2rem; margin-bottom: 15px; }
.case-task { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 10px; }
.case-result { font-size: 0.95rem; color: var(--text-primary); background: rgba(255,255,255,0.05); padding: 10px; border-radius: 4px; border-left: 3px solid var(--text-primary); }

.marquee-wrapper { overflow: hidden; position: relative; width: 100vw; margin-left: calc(-50vw + 50%); margin-top: 40px; background: var(--bg-surface); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); padding: 20px 0; }
.marquee { white-space: nowrap; overflow: hidden; display: flex; }
.marquee-content { display: inline-flex; animation: scrollText 30s linear infinite; align-items: center; }
.marquee-content span { font-size: 1.5rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; padding: 0 30px; letter-spacing: 1px; transition: color 0.3s ease; }
.marquee-content span:hover { color: var(--text-primary); }
@keyframes scrollText { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

@media (max-width: 600px) {
    .contacts {
        justify-content: center;
        gap: 12px;
        width: 100%;
    }

    .contacts .btn {
        width: 52px;
        height: 52px;
        padding: 0;
        justify-content: center;
        flex-shrink: 0;
        border-radius: 8px;
    }

    .contacts .btn-text {
        display: none;
    }
}