:root {
    --bg-primary: #07111f;
    --bg-secondary: rgba(8, 17, 31, 0.92);
    --surface: rgba(255, 255, 255, 0.08);
    --surface-strong: rgba(255, 255, 255, 0.14);
    --card-bg: rgba(7, 17, 31, 0.72);
    --text-primary: #f7f9fc;
    --text-secondary: #c6d1df;
    --text-muted: #9fb0c5;
    --accent: #ff6a3d;
    --accent-strong: #ff5421;
    --accent-soft: #ffe4da;
    --border: rgba(255, 255, 255, 0.14);
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.3);
    --radius: 18px;
    --container: 1200px;
    --nav-height: 82px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
}

body {
    min-height: 100vh;
    font-family: Montserrat, sans-serif;
    color: var(--text-primary);
    background:
        linear-gradient(rgba(5, 12, 24, 0.88), rgba(5, 12, 24, 0.94)),
        url("../assets/images/bg.jpg") center / cover no-repeat fixed;
}

body.menu-open {
    overflow: hidden;
}

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

a {
    color: inherit;
}

button,
input,
select,
textarea {
    font: inherit;
}

.container {
    width: min(calc(100% - 32px), var(--container));
    margin: 0 auto;
}

main {
    display: block;
}

section {
    padding: 56px 0;
    scroll-margin-top: 88px;
}

h1,
h2,
h3 {
    letter-spacing: 0.01em;
    line-height: 1.15;
}

p,
li,
label,
input,
select,
textarea {
    font-size: 15px;
    line-height: 1.7;
}

.section-tag,
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--accent-soft);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section-tag::before,
.eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 999px;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    min-height: 70px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(7, 17, 31, 0.08);
}

.nav-container {
    min-height: 70px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    overflow: visible;
}

.logo img {
    width: auto;
    height: 80px;
    transform: none;
}

nav {
    margin-left: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 10px;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 12px;
    color: #0b1726;
    text-decoration: none;
    font-weight: 700;
    transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    background: rgba(255, 106, 61, 0.12);
    color: #0b1726;
    box-shadow: inset 0 -2px 0 var(--accent);
    outline: none;
}

.btn-primary,
.btn-secondary,
.btn-quote {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 11px 22px;
    border-radius: 12px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary,
.btn-quote {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #ffffff;
    box-shadow: 0 12px 24px rgba(255, 84, 33, 0.25);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.16);
    color: var(--text-primary);
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-secondary:hover,
.btn-secondary:focus-visible,
.btn-quote:hover,
.btn-quote:focus-visible {
    transform: translateY(-2px);
    outline: none;
}

.desktop-cta {
    margin-left: 8px;
}

.mobile-cta {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 46px;
    height: 46px;
    margin-left: auto;
    padding: 0;
    border: 1px solid rgba(7, 17, 31, 0.14);
    border-radius: 12px;
    background: rgba(7, 17, 31, 0.04);
    cursor: pointer;
}

.hamburger span {
    width: 18px;
    height: 2px;
    margin: 0 auto;
    border-radius: 999px;
    background: #0b1726;
}

.hero {
    padding-top: 42px;
}

.hero-box {
    min-height: 540px;
    padding: 44px;
    border-radius: 28px;
    background:
        linear-gradient(105deg, rgba(5, 12, 24, 0.86) 0%, rgba(5, 12, 24, 0.58) 48%, rgba(5, 12, 24, 0.24) 100%),
        url("../assets/images/hero.jpg") center / cover no-repeat;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
}

.hero-content {
    width: min(100%, 640px);
    padding: 34px;
    border-radius: 24px;
    background: rgba(4, 10, 20, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
}

.hero-content h1 {
    font-size: clamp(1.875rem, 2.8vw, 2.5rem);
    margin-bottom: 18px;
}

.hero-content p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 22px;
}

.hero-points {
    list-style: none;
    display: grid;
    gap: 12px;
    margin-bottom: 26px;
}

.hero-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-primary);
}

.hero-points svg,
.q-icon,
.materials-icon,
.contact-item .icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--accent);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    color: var(--text-muted);
    font-size: 13px;
}

.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hero-trust span::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.about-container,
.quality-container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
    align-items: center;
}

.about-text,
.quality-content {
    max-width: 620px;
}

.about-text h2,
.services-title,
.industries-title,
.materials-header h2,
.quote-header h1,
.policy-title {
    font-size: clamp(1.875rem, 2.8vw, 2.5rem);
    margin-bottom: 16px;
}

.quality-content h2{
    font-size: clamp(1.875rem, 2.8vw, 2.5rem);
    margin-bottom: 16px;
    width: 75%;
}

.about-text p,
.quality-content p {
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.about-text p {
    text-wrap: pretty;
    max-width: 58ch;
}

.highlight-line {
    color: #ffffff;
    font-weight: 700;
}

.about-image img,
.quality-image img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.services,
.industries {
    text-align: center;
}

.services-title,
.industries-title {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.services-grid,
.industries-grid {
    display: grid;
    gap: 15px;
}

.materials-grid {
    display: grid;
    gap: 8px;
}

.services-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.industries-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.materials-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.service-card,
.industry-card,
.material-box,
.materials-container,
.contact-section,
.policy-container,
.quote-section .container {
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.service-card,
.industry-card,
.material-box {
    overflow: hidden;
    border-radius: 22px;
    background: var(--card-bg);
}

.service-card {
    display: flex;
    flex-direction: column;
    text-align: left;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.service-card:hover,
.industry-card:hover,
.material-box:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.24);
}

.service-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.service-content {
    flex: 1;
    padding: 24px;
}

.service-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.service-content p {
    color: var(--text-secondary);
}

.industry-card {
    position: relative;
}

.industry-card img {
    width: 100%;
    height: 230px;
    object-fit: cover;
}

.industry-label {
    position: absolute;
    inset: auto 16px 16px 16px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.92);
    color: #08111d;
    font-size: 15px;
    font-weight: 700;
    text-align: center;
}

.materials-container,
.quote-section .container,
.policy-container {
    padding: 36px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.06);
}

.materials-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 26px;
}

.material-box {
    padding: 22px 18px;
    text-align: center;
}

.material-box p {
    color: var(--text-secondary);
    white-space: nowrap;
}

.material-box span {
    color: #ffffff;
    font-weight: 700;
}

.quality-content ul {
    list-style: none;
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.quality-content li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-primary);
}

.contact-section {
    padding: 34px 0;
    background: rgba(0, 0, 0, 0.12);
}

.contact-container {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr 1fr;
    gap: 28px;
    align-items: start;
}

.contact-about,
.contact-links,
.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-about p,
.contact-links a,
.contact-item span,
.contact-item a {
    color: var(--text-secondary);
}

.contact-about p {
    margin-bottom: 12px;
}

.contact-linkedin {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-linkedin-url {
    color: #ffffff;
    text-decoration: none;
    word-break: break-all;
}

.contact-linkedin-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #cfd6df;
    text-decoration: none;
}

.contact-linkedin-icon svg {
    width: 40px;
    height: 40px;
}

.contact-linkedin-icon:hover,
.contact-linkedin-icon:focus-visible {
    color: #ffffff;
    transform: translateY(-1px);
    outline: none;
}

.contact-linkedin-url:hover,
.contact-linkedin-url:focus-visible {
    text-decoration: underline;
    outline: none;
}

.contact-links h3,
.contact-info h3 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.contact-links ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.contact-links a,
.contact-item a {
    text-decoration: none;
    transition: color 0.25s ease;
}

.contact-links a:hover,
.contact-links a:focus-visible,
.contact-item a:hover,
.contact-item a:focus-visible {
    color: #ffffff;
    outline: none;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.contact-item .icon {
    width: 28px;
    height: 28px;
}

.icon-location,
.icon-phone {
    color: #58d26a;
}

.icon-email {
    color: #35b8ff;
}

.contact-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.contact-social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(88, 210, 106, 0.14);
    border: 1px solid rgba(88, 210, 106, 0.28);
    color: #58d26a;
    transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.contact-social svg {
    width: 18px;
    height: 18px;
}

.contact-social:hover,
.contact-social:focus-visible {
    transform: translateY(-2px);
    background: rgba(88, 210, 106, 0.22);
    border-color: rgba(88, 210, 106, 0.4);
    outline: none;
}

.footer {
    padding: 8px 0 14px;
    background: rgba(255, 255, 255, 0.98);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding-top: 20px;
    border-top: 1px solid rgba(7, 17, 31, 0.08);
}

.footer-left p,
.footer-right a {
    color: #44566c;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.footer-right {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-right a:hover,
.footer-right a:focus-visible {
    color: #0b1726;
    box-shadow: inset 0 -2px 0 var(--accent);
    outline: none;
}

#loader {
    position: fixed;
    inset: 0;
    background: #07111f;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.2);
    border-top: 5px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.quote-section {
    padding-top: 36px;
}

.quote-section .container {
    max-width: 820px;
}

.quote-header {
    text-align: center;
    margin-bottom: 26px;
}

.quote-subtext,
.quote-note,
.policy-content p,
.policy-content li {
    color: var(--text-secondary);
}

#formMessage {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    font-size: 14px;
    display: none;
}

#formMessage.success,
.success {
    display: block;
    color: #d1fae5;
    background: rgba(34, 197, 94, 0.16);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

#formMessage.error,
.error {
    display: block;
    color: #fee2e2;
    background: rgba(239, 68, 68, 0.16);
    border: 1px solid rgba(239, 68, 68, 0.28);
}

#formMessage.info,
.info {
    display: block;
    color: #e0f2fe;
    background: rgba(14, 165, 233, 0.16);
    border: 1px solid rgba(14, 165, 233, 0.28);
}

#quoteForm {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.form-honeypot {
    position: absolute;
    overflow: hidden;
    clip: rect(0 0 0 0);
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
}

.form-group label {
    margin-bottom: 6px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

#quoteForm input,
#quoteForm select,
#quoteForm textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    color: #101828;
    outline: none;
}

#quoteForm input:focus,
#quoteForm select:focus,
#quoteForm textarea:focus,
.nav-links a:focus-visible,
.logo:focus-visible,
.scroll-top:focus-visible {
    box-shadow: 0 0 0 3px rgba(255, 106, 61, 0.26);
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 140px;
}

.full-width,
.form-action {
    grid-column: 1 / -1;
}

.form-action {
    display: flex;
    justify-content: center;
    margin-top: 6px;
}

.btn-loading {
    opacity: 0.75;
    pointer-events: none;
}

.quote-note {
    margin-top: 18px;
    text-align: center;
    font-size: 13px;
}

.policy-section {
    padding-top: 36px;
}

.policy-container {
    max-width: 900px;
}

.policy-title {
    margin-bottom: 18px;
}

.policy-content {
    color: var(--text-secondary);
}

.policy-content h2,
.policy-content h3 {
    color: #ffffff;
}

.policy-content h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.policy-content h3 {
    margin-top: 22px;
    margin-bottom: 8px;
    font-size: 1.08rem;
}

.policy-content a {
    color: #ffffff;
}

.scroll-top {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 1200;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #ffffff;
    box-shadow: 0 16px 28px rgba(255, 84, 33, 0.3);
    cursor: pointer;
}

.scroll-top span {
    font-size: 22px;
    line-height: 1;
}

.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .industries-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-container,
    .quality-container,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-logo {
        align-self: center;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 74px;
    }

    body {
        background-attachment: scroll;
    }

    section {
        padding: 44px 0;
    }

    .nav-container {
        position: relative;
        flex-wrap: wrap;
    }

    .logo {
        padding: 0;
    }

    .logo img {
        height: 50px;
    }

    .hamburger {
        display: inline-flex;
    }

    nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 0;
        right: 0;
        margin-left: 0;
        padding: 16px;
        border: 1px solid var(--border);
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.99);
        box-shadow: var(--shadow);
        display: none;
    }

    nav.active {
        display: block;
    }

    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .nav-links a {
        justify-content: flex-start;
        padding: 12px 14px;
    }

    .desktop-cta {
        display: none;
    }

    .mobile-cta {
        display: inline-flex;
        width: 100%;
        margin-top: 12px;
    }

    .hero {
        padding-top: 24px;
    }

    .hero-box {
        min-height: auto;
        padding: 22px;
        border-radius: 22px;
    }

    .hero-content {
        padding: 22px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 15px;
    }

    .about-image img,
    .quality-image img {
        min-height: 220px;
    }

    .materials-container,
    .quote-section .container,
    .policy-container {
        padding: 24px 18px;
        border-radius: 22px;
    }

    #quoteForm {
        grid-template-columns: 1fr;
    }

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

    .footer-right {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: 100%;
    }

    .industries-grid,
    .materials-grid {
        grid-template-columns: 1fr;
    }

    .industry-card img {
        height: 210px;
    }

    .scroll-top {
        right: 14px;
        bottom: 14px;
        width: 44px;
        height: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .spinner {
        animation: none;
    }
}