/* ============================================ */
/* BRUTALIST EDITORIAL DESIGN */
/* High Fashion / Magazine Style */
/* ============================================ */

:root {
    --color-bg: #ffffff;
    --color-text: #000000;
    --color-text-secondary: #666666;
    --color-accent: #000000;
    --color-border: #000000;
    --space-xs: 1rem;
    --space-sm: 2rem;
    --space-md: 4rem;
    --space-lg: 6rem;
    --space-xl: 10rem;
    --font-primary: 'Helvetica Neue', 'Arial', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.4;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--color-text);
    color: var(--color-bg);
}

/* ============================================ */
/* NAVIGATION */
/* ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 700;
}

.nav-right {
    display: flex;
    gap: var(--space-sm);
}

.nav a {
    color: var(--color-text);
    text-decoration: none;
    transition: opacity 0.2s;
}

.nav a:hover {
    opacity: 0.5;
}

/* ============================================ */
/* CONTAINER */
/* ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-wide {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================ */
/* HERO */
/* ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
}

.hero-number {
    font-size: 1rem;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-sm);
    font-weight: 700;
}

.hero-title {
    font-size: clamp(3rem, 15vw, 12rem);
    font-weight: 900;
    line-height: 0.85;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.hero-meta {
    display: flex;
    gap: var(--space-lg);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

/* ============================================ */
/* STATEMENT */
/* ============================================ */
.statement {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.statement-number {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    margin-bottom: var(--space-sm);
    font-weight: 700;
}

.statement-text {
    font-size: clamp(1.5rem, 4vw, 3.5rem);
    line-height: 1.3;
    font-weight: 500;
    max-width: 1200px;
    letter-spacing: -0.01em;
}

/* ============================================ */
/* SECTION TITLE */
/* ============================================ */
.section-title {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.section-number {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    font-weight: 700;
}

.section-title h2 {
    font-size: clamp(2rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

/* ============================================ */
/* SERVICES */
/* ============================================ */
.services {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.services-list {
    display: grid;
    gap: var(--space-md);
}

.service-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
    transition: padding-left 0.3s;
}

.service-item:hover {
    padding-left: var(--space-sm);
}

.service-num {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    font-weight: 700;
}

.service-content h3 {
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
}

.service-content p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* ============================================ */
/* CASES */
/* ============================================ */
.cases {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.case {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.case:last-child {
    border-bottom: none;
}

.case-header {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: var(--space-md);
    align-items: baseline;
    margin-bottom: var(--space-lg);
}

.case-num {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    font-weight: 700;
}

.case-title {
    font-size: clamp(1.5rem, 4vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

.case-tag {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    white-space: nowrap;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    padding-left: 132px;
}

.case-col h4 {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.case-col p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.case-col ul {
    list-style: none;
    color: var(--color-text-secondary);
}

.case-col li {
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
}

.case-col li::before {
    content: '—';
    position: absolute;
    left: 0;
}

.case-links {
    display: flex;
    gap: var(--space-sm);
    margin-left: 132px;
    flex-wrap: wrap;
}

.case-link {
    display: inline-block;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 0.25rem;
    transition: opacity 0.2s;
}

.case-link:hover {
    opacity: 0.5;
}

/* ============================================ */
/* PRINCIPLES */
/* ============================================ */
.principles {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.principle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    line-height: 1.4;
    font-weight: 500;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
}

/* ============================================ */
/* CONTACT */
/* ============================================ */
.contact {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.contact-item {
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-text);
    transition: background 0.3s;
}

.contact-item:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.contact-label {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.contact-value {
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 700;
}

/* ============================================ */
/* FOOTER */
/* ============================================ */
.footer {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 700;
}

/* ============================================ */
/* ANIMATIONS */
/* ============================================ */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================ */
/* RESPONSIVE - TABLET */
/* ============================================ */
@media (max-width: 1024px) {
    :root {
        --space-md: 3rem;
        --space-lg: 5rem;
        --space-xl: 7rem;
    }

    .case-grid {
        grid-template-columns: 1fr;
        padding-left: 0;
        gap: var(--space-sm);
    }

    .case-header {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .case-tag {
        width: fit-content;
    }

    .case-links {
        margin-left: 0;
    }

    .principles-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .service-item {
        grid-template-columns: 80px 1fr;
        gap: var(--space-sm);
    }
}

/* ============================================ */
/* RESPONSIVE - MOBILE */
/* ============================================ */
@media (max-width: 768px) {
    :root {
        --space-xs: 0.75rem;
        --space-sm: 1.25rem;
        --space-md: 2rem;
        --space-lg: 3rem;
        --space-xl: 5rem;
    }

    body {
        font-size: 15px;
    }

    /* Navigation */
    .nav {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem 1.25rem;
        align-items: flex-start;
    }

    .nav-left {
        font-size: 0.7rem;
    }

    .nav-right {
        gap: 1.25rem;
        font-size: 0.7rem;
    }

    /* Hero */
    .hero {
        min-height: 90vh;
        padding-top: 8rem;
        padding-bottom: var(--space-lg);
    }

    .hero-number {
        font-size: 0.85rem;
        margin-bottom: 1.25rem;
    }

    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4rem);
        line-height: 0.9;
        margin-bottom: var(--space-sm);
    }

    .hero-meta {
        flex-direction: column;
        gap: 0.5rem;
        font-size: 0.8rem;
    }

    /* Containers */
    .container,
    .container-wide {
        padding: 0 1.25rem;
    }

    /* Statement */
    .statement {
        padding: var(--space-lg) 0;
    }

    .statement-text {
        font-size: clamp(1.25rem, 5vw, 2rem);
        line-height: 1.4;
    }

    /* Section titles */
    .section-title {
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: var(--space-md);
    }

    .section-title h2 {
        font-size: clamp(1.75rem, 8vw, 3rem);
    }

    /* Services */
    .services {
        padding: var(--space-lg) 0;
    }

    .services-list {
        gap: var(--space-sm);
    }

    .service-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: var(--space-sm) 0;
    }

    .service-item:hover {
        padding-left: 0;
    }

    .service-num {
        font-size: 0.7rem;
    }

    .service-content h3 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }

    .service-content p {
        font-size: 0.95rem;
    }

    /* Cases */
    .cases {
        padding: var(--space-lg) 0;
    }

    .case {
        margin-bottom: var(--space-lg);
        padding-bottom: var(--space-md);
    }

    .case-header {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        margin-bottom: var(--space-md);
    }

    .case-num {
        font-size: 0.7rem;
    }

    .case-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
        line-height: 1;
    }

    .case-tag {
        font-size: 0.65rem;
        padding: 0.4rem 0.8rem;
    }

    .case-grid {
        gap: var(--space-sm);
        margin-bottom: var(--space-sm);
    }

    .case-col h4 {
        font-size: 0.7rem;
        margin-bottom: 0.5rem;
    }

    .case-col p {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .case-col li {
        font-size: 0.95rem;
        margin-bottom: 0.4rem;
    }

    .case-links {
        gap: 0.75rem;
        margin-bottom: 0;
    }

    .case-link {
        font-size: 0.8rem;
        padding-bottom: 0.2rem;
    }

    /* Principles */
    .principles {
        padding: var(--space-lg) 0;
    }

    .principles-grid {
        gap: var(--space-sm);
    }

    .principle {
        font-size: 1rem;
        padding: var(--space-sm);
    }

    /* Contact */
    .contact {
        padding: var(--space-lg) 0;
    }

    .contact-grid {
        gap: var(--space-sm);
    }

    .contact-item {
        padding: var(--space-md);
    }

    .contact-label {
        font-size: 0.7rem;
    }

    .contact-value {
        font-size: 1.25rem;
        word-break: break-all;
    }

    /* Footer */
    .footer {
        padding: var(--space-sm) 0;
    }

    .footer-grid {
        flex-direction: column;
        gap: 0.5rem;
        font-size: 0.65rem;
    }
}

/* ============================================ */
/* RESPONSIVE - SMALL MOBILE */
/* ============================================ */
@media (max-width: 480px) {
    :root {
        --space-xs: 0.5rem;
        --space-sm: 1rem;
        --space-md: 1.5rem;
        --space-lg: 2.5rem;
        --space-xl: 4rem;
    }

    body {
        font-size: 14px;
    }

    .nav {
        padding: 0.75rem 1rem;
    }

    .container,
    .container-wide {
        padding: 0 1rem;
    }

    .hero {
        padding-top: 6rem;
    }

    .hero-title {
        font-size: clamp(2rem, 13vw, 3rem);
    }

    .statement-text {
        font-size: clamp(1.1rem, 6vw, 1.5rem);
    }

    .section-title h2 {
        font-size: clamp(1.5rem, 10vw, 2.5rem);
    }

    .case-title {
        font-size: clamp(1.25rem, 8vw, 2rem);
    }

    .contact-value {
        font-size: 1.1rem;
    }
}

/* ============================================ */
/* TOUCH DEVICE OPTIMIZATIONS */
/* ============================================ */
@media (hover: none) and (pointer: coarse) {
    /* Увеличиваем тач-таргеты для удобства */
    .nav a {
        padding: 0.5rem 0;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .case-link {
        padding: 0.5rem 0;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    .contact-item {
        min-height: 88px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    /* Убираем hover эффекты на тач-устройствах */
    .service-item:hover {
        padding-left: 0;
    }

    .nav a:active,
    .case-link:active,
    .contact-item:active {
        opacity: 0.5;
    }
}

/* ============================================ */
/* PERFORMANCE & ACCESSIBILITY */
/* ============================================ */

/* Улучшаем производительность анимаций */
.modal,
.modal-image,
.nav,
.case-link,
.contact-item,
.service-item {
    will-change: auto;
}

/* Оптимизация для плавного скролла */
html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

/* Улучшенный тач на интерактивных элементах */
a,
button,
.case-link,
.contact-item,
.modal-close,
.modal-nav {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

/* Предотвращаем двойной тап зум на кнопках */
button,
.modal-close,
.modal-nav {
    user-select: none;
    -webkit-user-select: none;
}

/* Оптимизация изображений */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Улучшенный фокус для клавиатурной навигации */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 2px;
}

/* Скрываем фокус для мыши */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

/* Анти-флеш при загрузке на iOS */
@supports (-webkit-touch-callout: none) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}