:root {
    --dark: #16181D;
    --dark-2: #23272F;
    --dark-3: #2D323C;
    --accent: #F97316;
    --accent-hover: #EA580C;
    --white: #FFFFFF;
    --light: #F5F6F7;
    --border: #E5E7EB;
    --border-dark: #343A44;
    --text: #1F2937;
    --text-light: #6B7280;
    --text-muted: #9CA3AF;
    --radius: 2px;
    --transition: 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
    font-size: 15px;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* Типографика */
h1 {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--white);
    letter-spacing: -0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 32px;
    max-width: 640px;
}

/* Метка над заголовком */
.section-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: inherit;
}

.btn-primary,
.btn-accent {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.btn-primary:hover,
.btn-accent:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--white);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--text);
    color: var(--text);
}

.btn-outline:hover {
    background: var(--dark);
    color: white;
    border-color: var(--dark);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Формы */
input, select, textarea {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    transition: border-color var(--transition);
    background: var(--white);
    color: var(--text);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Секции */
section {
    padding: 80px 0;
}

/* ===== HERO ===== */
.hero {
    background: var(--dark);
    color: white;
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(90deg, rgba(26,29,35,0.95) 0%, rgba(26,29,35,0.75) 50%, rgba(26,29,35,0.5) 100%),
    url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center right;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero__label {
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    display: block;
}

.hero h1 {
    max-width: 720px;
}

.hero__subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 36px;
    max-width: 480px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Статистика в hero */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 72px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
}

.hero-stat {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding-right: 24px;
}

.hero-stat__icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
}

.hero-stat__icon img,
.hero-stat__icon svg {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.hero-stat__number {
    font-size: 22px;
    font-weight: 700;
    color: white;
    line-height: 1.2;
    margin-bottom: 4px;
}

.hero-stat__label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.4;
}

/* ===== СЕКЦИЯ КАТАЛОГ ===== */
.catalog-section {
    padding: 80px 0;
    background: var(--light);
}

.catalog-section__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.catalog-section__header h2 {
    margin-bottom: 8px;
}

.catalog-section__header p {
    color: var(--text-light);
    font-size: 15px;
    max-width: 600px;
}

.catalog-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.catalog-link:hover {
    color: var(--accent-hover);
}

.catalog-grid-home {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

/* ===== ПРЕИМУЩЕСТВА ===== */
.advantages {
    background: var(--white);
    padding: 80px 0;
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.advantage-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: border-color var(--transition);
}

.advantage-card:hover {
    border-color: var(--text);
}

.advantage__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.advantage__icon img,
.advantage__icon svg {
    width: 44px;
    height: 44px;
}

.advantage-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 700;
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== ПРИМЕНЕНИЕ ===== */
/* ===== ПРИМЕНЕНИЕ ===== */
.applications {
    padding: 80px 0;
    background: var(--light);
}

.applications__row {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    gap: 32px;
    align-items: stretch;
    margin-top: 40px;
}

.applications__col {
    display: flex;
    flex-direction: column;
}

/* Фото */
.applications__col--image {
    overflow: hidden;
    border-radius: var(--radius);
}

.applications__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--radius);
    min-height: 380px;
}

/* Список с галочками */
.applications__col--list {
    justify-content: center;
}

.applications__list {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
}

.applications__list li {
    padding: 20px 0 20px 36px;
    position: relative;
    font-size: 15px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    line-height: 1.5;
}

.applications__list li:last-child {
    border-bottom: none;
}

.applications__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) rotate(-45deg);
    width: 14px;
    height: 7px;
    border-left: 2px solid var(--accent);
    border-bottom: 2px solid var(--accent);
}

/* Форма */
.applications__col--form {
    justify-content: center;
}

.applications__form-box {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.applications__form-box h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
    line-height: 1.3;
}

.applications__form-box p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.applications__form input {
    margin-bottom: 12px;
}

/* ===== КАК РАБОТАЕМ ===== */
.how-we-work {
    padding: 80px 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
    position: relative;
}

.step {
    background: var(--white);
    padding: 28px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
}
/* ===== ПРИМЕНЕНИЕ ===== */

.step-number {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.step h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.step p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== CTA БЛОК ===== */
.cta-section {
    padding: 0;
    background: var(--dark);
}

.cta-block {
    background: var(--dark);
    padding: 60px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.cta-block::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 40%;
    background-image: url('../images/cta-bg.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    pointer-events: none;
}

.cta-block h2 {
    color: white;
    font-size: 26px;
    margin-bottom: 8px;
    position: relative;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-block p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 15px;
    position: relative;
    z-index: 2;
}

.cta-block__actions {
    display: flex;
    gap: 12px;
    position: relative;
    z-index: 2;
    flex-wrap: wrap;
}

/* ===== УТИЛИТЫ ===== */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }