:root {
    --navy: #16324F;
    --charcoal: #1C232B;
    --steel: #4A7BA7;
    --steel-light: #7FA3C0;
    --copper: #C4783A;
    --accent: #16324F;
    --accent-hover: #0F243A;
    --paper: #F4F6F8;
    --white: #FFFFFF;
    --line: #D5DDE5;
    --text: #2A3340;
    --muted: #5B6775;
    --focus: #1F4E79;
    --font-sans: "Source Sans 3", "Segoe UI", sans-serif;
    --font-display: "IBM Plex Sans", "Segoe UI", sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--white);
    line-height: 1.65;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6,
.navbar,
.jd-logo,
.section-title,
.btn {
    font-family: var(--font-display);
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    z-index: 10000;
    background: var(--navy);
    color: #fff;
    padding: 0.6rem 1rem;
}

.skip-link:focus {
    top: 0.75rem;
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-link:focus-visible,
.form-control:focus,
.form-select:focus,
.form-check-input:focus,
.accordion-button:focus {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
    box-shadow: none;
}

.btn-primary,
.btn.btn-primary {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #fff !important;
    border-radius: 2px;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn-primary:hover,
.btn.btn-primary:hover,
.btn-primary:focus,
.btn.btn-primary:focus {
    background-color: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
    color: #fff !important;
}

.btn-outline-light,
.btn-outline-primary {
    border-radius: 2px;
}

.btn-outline-primary {
    color: var(--navy);
    border-color: var(--navy);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: var(--navy);
    border-color: var(--navy);
    color: #fff;
}

.text-primary {
    color: var(--steel) !important;
}

.bg-primary {
    background-color: var(--navy) !important;
}

.section-title {
    color: var(--steel);
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}

.section-block {
    padding: 5rem 0;
}

.section-intro {
    max-width: 42rem;
    margin: 0 auto 3rem;
    text-align: center;
}

.section-intro h2,
.section-intro .h1 {
    margin-bottom: 1rem;
}

.section-intro p {
    color: var(--muted);
    margin-bottom: 0;
}

code {
    font-size: 0.9em;
    background: #eef3f7;
    padding: 0.1em 0.35em;
    color: var(--navy);
}

/* Header */
.site-topbar {
    background: var(--navy);
    color: #d7e3ee;
    font-size: 0.9rem;
    padding: 0.45rem 0;
}

.site-topbar a {
    color: #fff;
    text-decoration: none;
}

.site-topbar a:hover {
    color: var(--steel-light);
}

.site-topbar__sep {
    margin: 0 0.6rem;
    opacity: 0.5;
}

.navbar {
    background: #fff;
    box-shadow: 0 1px 0 var(--line);
    padding: 0.65rem 0;
}

.navbar.sticky-top {
    top: 0;
}

.navbar .navbar-nav .nav-link {
    margin-right: 0.35rem;
    padding: 0.8rem 0.7rem;
    color: var(--navy);
    font-weight: 500;
    text-transform: none;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.navbar .navbar-nav .nav-link:hover,
.navbar .navbar-nav .nav-link.active,
.navbar .dropdown-item.active {
    color: var(--steel);
}

.navbar .dropdown-menu {
    border: 1px solid var(--line);
    border-radius: 2px;
    box-shadow: 0 8px 24px rgba(22, 50, 79, 0.08);
}

.jd-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--navy);
}

.jd-logo img {
    display: block;
    width: 44px;
    height: 44px;
}

.jd-logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.jd-logo__mark {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.08em;
}

.jd-logo__name {
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--steel);
}

.jd-logo--footer {
    color: #fff;
}

.jd-logo--footer .jd-logo__name {
    color: var(--steel-light);
}

/* Hero */
.jd-hero {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: center;
    color: #fff;
    overflow: hidden;
    background: var(--navy);
}

.jd-hero__media {
    position: absolute;
    inset: 0;
}

.jd-hero__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.jd-hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(105deg, rgba(15, 32, 51, 0.88) 0%, rgba(22, 50, 79, 0.62) 55%, rgba(22, 50, 79, 0.35) 100%),
        repeating-linear-gradient(90deg, rgba(127, 163, 192, 0.08) 0 1px, transparent 1px 48px),
        repeating-linear-gradient(0deg, rgba(127, 163, 192, 0.08) 0 1px, transparent 1px 48px);
}

.jd-hero__content {
    position: relative;
    z-index: 1;
    padding: 7rem 0 6rem;
    max-width: 42rem;
}

.jd-hero__eyebrow {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--steel-light);
    font-weight: 600;
    margin-bottom: 1rem;
}

.jd-hero h1 {
    font-size: clamp(2.1rem, 4vw, 3.4rem);
    line-height: 1.15;
    margin-bottom: 1.25rem;
    font-weight: 600;
}

.jd-hero p {
    font-size: 1.15rem;
    color: #e6eef4;
    margin-bottom: 2rem;
}

.jd-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.jd-hero__actions .btn-outline-light {
    border-width: 1.5px;
}

/* Credibility */
.credibility {
    background: var(--paper);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.cred-card {
    background: #fff;
    border: 1px solid var(--line);
    padding: 1.75rem 1.5rem;
    height: 100%;
    position: relative;
}

.cred-card i {
    color: var(--steel);
    font-size: 1.25rem;
    margin-bottom: 0.85rem;
}

.cred-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.cred-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.cred-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--navy);
}

/* Cards */
.jd-card {
    background: #fff;
    border: 1px solid var(--line);
    padding: 1.75rem 1.5rem 1.4rem;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.jd-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(22, 50, 79, 0.08);
}

.jd-card__rule {
    width: 2.5rem;
    height: 2px;
    background: var(--copper);
    margin-bottom: 1rem;
}

.jd-card p {
    color: var(--muted);
}

.jd-card__link {
    font-weight: 600;
    color: var(--navy);
    text-decoration: none;
}

.jd-card__link:hover {
    color: var(--steel);
}

.project-card {
    background: #fff;
    border: 1px solid var(--line);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    background: var(--navy);
}

.project-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card__badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: rgba(22, 50, 79, 0.92);
    color: #fff;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.3rem 0.55rem;
}

.project-card__body {
    padding: 1.35rem 1.35rem 1.5rem;
    flex: 1;
}

.project-card__type {
    color: var(--steel);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.project-card__meta {
    color: var(--muted);
    font-size: 0.95rem;
}

.project-card__services {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--muted);
}

/* Process */
.process-list {
    counter-reset: step;
}

.process-step {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: 1.25rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--line);
}

.process-step__num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--steel);
    letter-spacing: 0.04em;
}

.process-step p {
    margin: 0;
    color: var(--muted);
}

/* Why / benefits */
.benefit-list {
    display: grid;
    gap: 0.75rem;
}

.benefit-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.benefit-item i {
    color: var(--copper);
    margin-top: 0.3rem;
}

.profile-placeholder {
    aspect-ratio: 4 / 5;
    background:
        repeating-linear-gradient(90deg, rgba(127, 163, 192, 0.18) 0 1px, transparent 1px 32px),
        repeating-linear-gradient(0deg, rgba(127, 163, 192, 0.18) 0 1px, transparent 1px 32px),
        linear-gradient(180deg, #1b3a5c 0%, #16324F 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    min-height: 360px;
    border: 1px solid var(--line);
}

.profile-placeholder strong {
    font-size: 1.4rem;
    letter-spacing: 0.06em;
}

.profile-placeholder span {
    opacity: 0.85;
}

.about-photo {
    width: 100%;
    height: auto;
    object-fit: cover;
    border: 1px solid var(--line);
}

/* Page header */
.page-header {
    position: relative;
    background: var(--navy) url("../img/structural-drawings.jpg") center/cover no-repeat;
    min-height: 280px;
    display: flex;
    align-items: flex-end;
    color: #fff;
    padding: 5.5rem 0 2.5rem;
}

.page-header__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(15, 32, 51, 0.88), rgba(22, 50, 79, 0.55));
}

.page-header__inner {
    position: relative;
    z-index: 1;
}

.page-header__eyebrow {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.78rem;
    color: var(--steel-light);
    margin-bottom: 0.4rem;
}

.page-header__title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 0.75rem;
}

.page-header__crumbs {
    margin: 0;
}

.page-header .breadcrumb-item,
.page-header .breadcrumb-item a,
.page-header .breadcrumb-item.active,
.page-header .breadcrumb-item + .breadcrumb-item::before {
    color: #d7e3ee;
}

.page-header .breadcrumb-item a:hover {
    color: #fff;
}

/* Footer */
.site-footer {
    background: var(--charcoal);
    color: #c5ced6;
    margin-top: 0;
}

.site-footer__contact li {
    margin-bottom: 0.45rem;
}

.site-footer__label {
    display: inline-block;
    min-width: 4.5rem;
    color: var(--steel-light);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-footer__link {
    display: block;
    color: #c5ced6;
    text-decoration: none;
    margin-bottom: 0.45rem;
}

.site-footer__link:hover {
    color: #fff;
}

.site-footer__legal {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.1rem 0;
    font-size: 0.92rem;
}

.site-footer__legal a {
    color: #fff;
}

.cta-banner {
    background: var(--navy);
    color: #fff;
    padding: 4rem 0;
}

.cta-banner__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cta-banner .section-title {
    color: var(--steel-light);
}

.cta-banner p {
    color: #d7e3ee;
    max-width: 40rem;
}

/* Forms */
.jd-form .form-control,
.jd-form .form-select {
    border-radius: 2px;
    border-color: #c5d0da;
    min-height: 52px;
}

.jd-form textarea.form-control {
    min-height: 140px;
}

.form-hint {
    font-size: 0.85rem;
    color: var(--muted);
    margin: 0.35rem 0 0;
}

.form-error {
    color: #9b2c2c;
    font-size: 0.88rem;
    margin: 0.3rem 0 0;
}

.required {
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 500;
}

.honeypot {
    position: absolute;
    left: -9999px;
    height: 0;
    overflow: hidden;
}

.form-status {
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
}

.form-status.is-success {
    background: #eef6f0;
    border-color: #b7d4c0;
}

.form-status.is-error {
    background: #f8eeee;
    border-color: #e0b4b4;
}

.contact-facts dt {
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--steel);
    margin-top: 1rem;
}

.contact-facts dd {
    margin: 0;
}

/* Accordion */
.jd-accordion .accordion-item {
    border: 1px solid var(--line);
    margin-bottom: 0.65rem;
}

.jd-accordion .accordion-button:not(.collapsed) {
    background: #eef3f7;
    color: var(--navy);
    box-shadow: none;
}

.notice {
    background: #eef3f7;
    border-left: 3px solid var(--navy);
    padding: 1rem 1.15rem;
}

.placeholder-note {
    font-size: 0.92rem;
    color: var(--muted);
}

.error-page {
    padding: 5rem 0 6rem;
    text-align: center;
}

.back-to-top {
    border-radius: 2px;
}

@media (max-width: 991.98px) {
    .cta-banner__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar .navbar-nav .nav-link {
        padding: 0.65rem 0;
    }

    .jd-hero {
        min-height: 70vh;
    }
}

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

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}