/* ===== Базовые цвета ===== */
:root {
    --black: #1E1F25;
    --white: #ffffff;
    --orange: #f15a24;
    --orange-dark: #d94a1a;
    --gray-light: #23242C;
    --gray-border: #3A3C48;
}

/* ===== Фон "мокрый асфальт" с текстурой ===== */
body {
    background-color: #2C2E3A;
    background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.03) 1px, transparent 1px),
                      radial-gradient(circle at 70% 80%, rgba(0,0,0,0.04) 1px, transparent 1px);
    background-size: 40px 40px, 30px 30px;
    background-repeat: repeat;
    color: var(--white);
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    scroll-behavior: smooth;
}

/* ===== Общие контейнеры ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Типографика ===== */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 5vw, 2.8rem);
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* ===== Секции ===== */
.section {
    padding: 100px 0;
    border-bottom: 1px solid var(--gray-border);
}

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

/* ===== Кнопки ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background-color: transparent;
    border: 2px solid var(--orange);
    color: var(--white);
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    letter-spacing: 0.3px;
}

.btn-primary {
    background-color: var(--orange);
    color: var(--black);
    border: 2px solid var(--orange);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--orange);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(241, 90, 36, 0.2);
}

.btn-outline:hover {
    background-color: var(--orange);
    color: var(--black);
    transform: translateY(-3px);
}

/* ===== Шапка ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(30, 31, 37, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--gray-border);
    padding: 18px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    text-decoration: none;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0;
}

.logo-accent {
    color: var(--orange);
    font-size: 2rem;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    font-size: 1rem;
}

.nav-links a:hover {
    color: var(--orange);
}

/* ===== Hero ===== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at 70% 30%, rgba(241, 90, 36, 0.08) 0%, #2C2E3A 80%);
}

.hero-content {
    max-width: 800px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #dddddd;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Услуги (карточки) ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 40px;
    margin-top: 20px;
}

.service-card {
    background: var(--gray-light);
    border-radius: 24px;
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s;
    border: 1px solid var(--gray-border);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 30px -12px rgba(241, 90, 36, 0.15);
    border-color: var(--orange);
}

.service-icon {
    font-size: 2.8rem;
    color: var(--orange);
    margin-bottom: 20px;
}

.service-card p {
    color: #bbbbbb;
}

/* ===== Преимущества ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
    margin-top: 20px;
}

.advantage-item {
    text-align: center;
    padding: 20px;
}

.advantage-item i {
    font-size: 2.5rem;
    color: var(--orange);
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

/* ===== Портфолио ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.portfolio-item {
    background: var(--gray-light);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.2s;
    border: 1px solid var(--gray-border);
}

.portfolio-item:hover {
    border-color: var(--orange);
    transform: scale(1.02);
}

.portfolio-img {
    height: 200px;
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    font-size: 3rem;
    border-bottom: 1px solid var(--gray-border);
}

.portfolio-info {
    padding: 24px;
}

.portfolio-info h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.portfolio-info p {
    color: #aaa;
    font-size: 0.9rem;
}

/* ===== Контакты ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 20px;
}

.contact-info {
    background: var(--gray-light);
    padding: 32px;
    border-radius: 28px;
    border: 1px solid var(--gray-border);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-detail i {
    font-size: 1.8rem;
    color: var(--orange);
    width: 40px;
}

.contact-detail a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.2rem;
    transition: color 0.2s;
}

.contact-detail a:hover {
    color: var(--orange);
}

.contact-form {
    background: var(--gray-light);
    padding: 32px;
    border-radius: 28px;
    border: 1px solid var(--gray-border);
}

.form-group {
    margin-bottom: 24px;
}

input, textarea {
    width: 100%;
    background: #0f1015;
    border: 1px solid var(--gray-border);
    border-radius: 16px;
    padding: 14px 18px;
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
    transition: 0.2s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 0 2px rgba(241, 90, 36, 0.2);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
    background-color: var(--orange);
    color: var(--black);
    border: none;
    font-weight: bold;
    padding: 14px;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.2s;
}

.btn-submit:hover {
    background-color: transparent;
    color: var(--orange);
    border: 2px solid var(--orange);
}

/* ===== Футер ===== */
footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--gray-border);
    background: #000;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
}

.footer-logo span {
    font-size: 1.6rem;
    font-weight: bold;
}

.footer-logo .accent {
    color: var(--orange);
}

.footer-social a {
    color: var(--white);
    font-size: 1.5rem;
    margin-left: 20px;
    transition: color 0.2s;
}

.footer-social a:hover {
    color: var(--orange);
}

.copyright {
    text-align: center;
    margin-top: 40px;
    font-size: 0.85rem;
    color: #777;
}

/* ===== Адаптивность ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    .section {
        padding: 70px 0;
    }
    .nav-container {
        flex-direction: column;
        align-items: center;
    }
    .nav-links {
        justify-content: center;
        gap: 24px;
    }
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .btn {
        width: 100%;
        max-width: 260px;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 16px;
    }
    .service-card, .contact-info, .contact-form {
        padding: 24px;
    }
}

/* ===== Анимация появления ===== */
.fade-up {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.7s cubic-bezier(0.2, 0.9, 0.4, 1.1), transform 0.7s ease;
}

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