@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;700&display=swap');

:root {
    --bg: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-header: rgba(255, 255, 255, 0.96);
    --text-primary: #17182B;
    --text-secondary: #666666;
    --accent: #ebc475;
    --accent-hover: #666666;
    --border: rgba(23, 24, 43, 0.14);
    --shadow: rgba(23, 24, 43, 0.12);
    --hero-box: #FFFFFF;
    --feature-box: #f8f8f8;
    --cta-border: #ebc475;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background .3s ease, color .3s ease;
}

img {
    display: block;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* HEADER */

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 20px var(--shadow);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    gap: 20px;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent);
    white-space: nowrap;
}

.logo-img {
    max-height: 59px;
    width: auto;
    object-fit: contain;
}

.header-phone {
    font-size: 14px;
    color: var(--text-secondary);
}

.header-phone:hover {
    color: var(--accent);
}

nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

nav a {
    font-size: 15px;
    color: var(--text-secondary);
    transition: 0.3s;
}

nav a:hover {
    color: var(--accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

/* BUTTON */

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 10px;
    background: var(--accent);
    font-weight: 500;
    transition: 0.3s;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* HERO */

.hero {
    padding: 80px 0;
}

.hero-inner,
.about {
    display: flex;
    flex-direction: row;
    gap: 50px;
    align-items: center;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero p,
.about p,
.section-title p,
.test-card p,
.product-content p,
.advantage p,
.cta p {
    color: var(--text-secondary);
}

.hero p {
    font-size: 18px;
    margin-bottom: 20px;
    max-width: 560px;
}

.hero-image,
.feature-image,
.about-image {
    border-radius: 18px;
    text-align: center;
    color: var(--text-secondary);
    background: var(--hero-box);
}

.hero-image {
    max-width: 50%;
    height: auto;
    object-fit: cover;
}

/* SECTIONS */

section {
    padding: 90px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2,
.about h2,
.cta h2 {
    font-size: 40px;
    margin-bottom: 12px;
}

/* ADVANTAGES GRID */

.advantages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    background: var(--bg-card);
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    padding: 30px 24px 32px;
    text-align: center;
}

.feature-image {
    margin-bottom: 24px;
    width: 100%;
    height: 260px;
    object-fit: cover;
    border-radius: 16px;
}

/* DIRECTION CARD */

.direction-card {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    max-width: 1100px;
    margin: 0 auto;
    align-items: stretch;
}

.direction-content {
    padding: 50px;
}

.direction-content h3 {
    font-size: 34px;
    margin-bottom: 24px;
}

.direction-media {
    border-left: 1px solid var(--border);
    background: #ffffff;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.direction-image {
    display: block;
    width: 100%;
    max-width: 520px;
    height: auto;
    object-fit: contain;
    object-position: center;
}

/* LISTS */

.product-content,
.advantage,
.test-card {
    padding: 30px 35px;
}

.product-content h3,
.advantage h3 {
    margin-bottom: 14px;
    font-size: 24px;
}

.product-list,
.test-list {
    margin: 18px 0;
    padding-left: 20px;
    color: var(--text-secondary);
}

.product-list li,
.test-list li {
    margin-bottom: 10px;
}

/* TEST BLOCK */

.tests {
    background: linear-gradient(180deg, var(--feature-box), transparent);
}

.test-card {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
    display: grid;
    grid-template-columns: 320px 1fr;
    background: var(--bg-card);
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.test-side {
    background: linear-gradient(135deg, var(--accent), #b98517);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.test-side-title {
    color: rgba(255, 255, 255, 0.88);
    font-size: 52px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 12px;
}

.test-side p {
    color: rgba(255, 255, 255, 0.88);
}

.test-content {
    padding: 40px;
}

.test-list {
    list-style: none;
    padding: 0;
    margin: 28px 0;
}

.test-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 18px;
    color: var(--text-secondary);
}

.test-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent);
    font-size: 24px;
    line-height: 1;
}

/* ABOUT */

.about p {
    margin-bottom: 16px;
}

.about-image {
    max-width: 50%;
    height: auto;
    object-fit: cover;
    border-radius: 18px;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-flow {
    margin-top: 12px;
    padding: 24px;
    border-radius: 18px;
    border: 1px solid rgba(209, 155, 38, 0.22);
}

.about-text {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
}

.about-flow-title {
    display: block;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 18px;
}

.about-flow-steps {
    display: flex;
    align-items: center;
    gap: 18px;
}

.about-step {
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}

.about-arrow {
    display: inline-block;
    font-size: 22px;
    color: var(--accent);
}

/* CTA */

.cta {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 60px;
    text-align: center;
    border: 3px solid var(--accent);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    position: relative;
    transition: .3s;
}

.cta h2 {
    font-size: 42px;
    margin-bottom: 16px;
    background: var(--text-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta p {
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--text-secondary);
}

.cta-icons {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.contact-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.contact-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
}

/* FOOTER */

footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
}

.footer-address {
    color: var(--text-secondary);
}

/* ADAPTIVE */

@media (max-width: 1300px) {
    nav {
        display: none;
    }

    .hero-inner,
    .about {
        flex-direction: column;
        gap: 30px;
        align-items: flex-start;
    }

    .hero-image,
    .about-image {
        max-width: 100%;
    }

    .advantages,
    .direction-card,
    .test-card {
        grid-template-columns: 1fr;
    }

    .direction-media {
        border-left: 0;
        border-top: 1px solid var(--border);
        padding: 20px;
    }

    .direction-image {
        max-width: 440px;
        margin-inline: auto;
    }

    .about {
        padding: 20px;
        align-items: center;
    }

    .about-image {
        max-width: 83%;
    }
}

@media (max-width: 768px) {
    nav {
        display: none;
    }

    section {
        padding: 70px 0;
    }

    .hero h1,
    .section-title h2,
    .about h2 {
        font-size: 34px;
    }

    .direction-content,
    .test-content,
    .test-side,
    .cta {
        padding: 24px;
    }

    .direction-content h3 {
        font-size: 28px;
    }

    .cta h2 {
        font-size: 32px;
    }

    .header-inner {
        flex-wrap: wrap;
        justify-content: center;
    }

    .header-left {
        align-items: center;
        text-align: center;
    }

    .footer-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .about {
        gap: 20px;
    }

    .about-image {
        max-width: 100%;
    }

    .about-flow-steps {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .about-arrow {
        display: none;
    }

    .about-step {
        text-align: center;
    }

    .feature-image {
        height: 220px;
    }

    .test-side-title {
        font-size: 40px;
    }

    .logo {
        font-size: 22px;
    }

    .logo-img {
        max-height: 50px;
    }

    .btn {
        padding: 12px 20px;
    }
}