/* D&A Welding Landing Page Styles */
:root {
    --primary: #18457a;
    --primary-dark: #0f2f52;
    --accent: #f5f7fb;
    --text-dark: #111827;
    --text-muted: #6b7280;
    --white: #ffffff;
    --radius-lg: 18px;
    --shadow-soft: 0 18px 45px rgba(15, 47, 82, 0.22);
    --transition: all 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #ffffff;
    color: var(--text-dark);
    line-height: 1.6;
}

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

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

.container {
    width: min(1200px, 100% - 40px);
    margin-inline: auto;
}

/* Top contact bar */
.top-bar {
    background: var(--primary-dark);
    color: var(--white);
    font-size: 0.85rem;
}

.top-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    gap: 10px;
    flex-wrap: wrap;
}

.top-bar-left,
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0.9;
}

.top-bar-item span.icon {
    font-size: 1rem;
}

.top-bar a {
    color: var(--white);
    font-weight: 500;
}

/* Header / Nav */
header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(255, 255, 255, 0.93);
    border-bottom: 1px solid rgba(15, 47, 82, 0.08);
    transition: var(--transition);
}

header.scrolled {
    box-shadow: 0 10px 30px rgba(15, 47, 82, 0.12);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 52px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text span:first-child {
    font-weight: 700;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--primary-dark);
}

.logo-text span:last-child {
    font-size: 0.75rem;
    color: var(--text-muted);
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 26px;
    font-size: 0.9rem;
}

nav a {
    position: relative;
    padding-bottom: 4px;
    font-weight: 500;
    color: var(--text-muted);
}

nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

nav a:hover,
nav a.active {
    color: var(--primary-dark);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 20px;
    border-radius: 999px;
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(15, 47, 82, 0.35);
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-1px);
    background: var(--primary-dark);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--primary-dark);
    transition: var(--transition);
}

.mobile-nav {
    display: none;
}

/* Hero */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(120deg, rgba(15, 47, 82, 0.88), rgba(15, 47, 82, 0.55)),
        url('../img/hero.jpg');
    background-size: cover;
    background-position: center;
    transform: scale(1.03);
    filter: brightness(0.95);
}

.hero-inner {
    position: relative;
    z-index: 1;
    padding-block: 90px;
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 2fr);
    gap: 40px;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 18px;
}

.hero-tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: #22c55e;
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.25);
}

.hero-title {
    font-size: clamp(2.4rem, 3.2vw + 1rem, 3.4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-title span.highlight {
    color: #facc15;
}

.hero-subtitle {
    font-size: 1rem;
    max-width: 32rem;
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 26px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 26px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    background: #facc15;
    color: #1f2937;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.25);
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.32);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

.btn-ghost:hover {
    background: rgba(15, 23, 42, 0.6);
    border-color: transparent;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.8rem;
}

.hero-meta-item span.label {
    display: block;
    opacity: 0.7;
}

.hero-meta-item span.value {
    font-weight: 600;
}

.hero-card {
    background: rgba(255, 255, 255, 0.96);
    color: var(--text-dark);
    padding: 20px;
    border-radius: 22px;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 18px;
    transform: translateY(12px);
    backdrop-filter: blur(12px);
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hero-badge {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(24, 69, 122, 0.08);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--primary-dark);
}

.hero-card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.hero-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.hero-stat {
    background: #f3f4f8;
    border-radius: 16px;
    padding: 10px 12px;
}

.hero-stat span.label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.hero-stat span.value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.hero-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.hero-card-footer strong {
    color: var(--primary-dark);
}

/* Sections */
section {
    padding-block: 80px;
}

section:nth-child(even) {
    background: var(--accent);
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.75rem;
    color: var(--primary-dark);
    font-weight: 600;
    margin-bottom: 8px;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 32rem;
    margin-inline: auto;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.5fr);
    gap: 40px;
    align-items: center;
}

.about-badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.about-badge {
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(24, 69, 122, 0.08);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-dark);
}

.about-list {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    font-size: 0.9rem;
}

.about-list li {
    list-style: none;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.about-list li::before {
    content: "◆";
    color: var(--primary);
    margin-top: 4px;
    font-size: 0.6rem;
}

.about-media {
    position: relative;
}

.about-primary-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.about-float-card {
    position: absolute;
    right: -16px;
    bottom: -18px;
    background: var(--primary-dark);
    color: var(--white);
    padding: 16px 18px;
    border-radius: 18px;
    font-size: 0.85rem;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.4);
    max-width: 240px;
}

.about-float-card strong {
    font-size: 1.2rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.service-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(24, 69, 122, 0.06), transparent);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.12);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(24, 69, 122, 0.09);
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.service-title {
    font-weight: 600;
    margin-bottom: 6px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.service-meta {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

/* Facility / capabilities */
.facility-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr);
    gap: 40px;
    align-items: center;
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.chip {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(24, 69, 122, 0.35);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-dark);
    background: rgba(255, 255, 255, 0.9);
}

.two-column-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 18px;
    font-size: 0.9rem;
}

.two-column-list li {
    list-style: none;
    position: relative;
    padding-left: 14px;
}

.two-column-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--primary);
}

.facility-media {
    position: relative;
    display: grid;
    gap: 14px;
}

.facility-main-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.facility-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.facility-row img {
    border-radius: 16px;
    object-fit: cover;
    height: 140px;
}

/* Stats strip */
.stats-strip {
    background: var(--primary-dark);
    color: var(--white);
    padding-block: 32px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
    text-align: center;
}

.stat-item span.value {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
}

.stat-item span.label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    opacity: 0.85;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    isolation: isolate;
}

.gallery-item::after {
    content: "View project";
    position: absolute;
    inset: auto 14px 14px 14px;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.88);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(12px);
    transition: var(--transition);
}

.gallery-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transform: scale(1.02);
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.07);
    filter: brightness(0.85);
}

.gallery-item:hover::after {
    opacity: 1;
    transform: translateY(0);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.3fr);
    gap: 40px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.contact-row {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
    font-size: 0.9rem;
}

.contact-row-item {
    display: flex;
    gap: 10px;
}

.contact-label {
    width: 80px;
    font-weight: 600;
    color: var(--text-muted);
}

.contact-value a {
    color: var(--primary-dark);
    font-weight: 500;
}

form {
    display: grid;
    gap: 14px;
}

.field-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

input,
textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.7);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
    background: #f9fafb;
}

input:focus,
textarea:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 1px rgba(24, 69, 122, 0.2);
}

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

.form-footnote {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: #020617;
    color: rgba(148, 163, 184, 0.9);
    padding-block: 22px;
    font-size: 0.8rem;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.footer-inner a {
    color: inherit;
}

/* Animations (on scroll) */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 960px) {
    .hero-inner,
    .about-grid,
    .facility-grid,
    .contact-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-card {
        max-width: 360px;
        margin-inline: auto;
        transform: translateY(0);
    }

    .about-float-card {
        position: static;
        margin-top: 14px;
    }
}

@media (max-width: 820px) {
    nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .mobile-nav {
        display: none;
        background: #ffffff;
        border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    }

    .mobile-nav.open {
        display: block;
    }

    .mobile-nav ul {
        list-style: none;
        padding: 10px 20px 16px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        font-size: 0.9rem;
    }

    .mobile-nav a {
        padding-block: 4px;
        font-weight: 500;
        color: var(--text-muted);
    }

    .mobile-nav a:hover {
        color: var(--primary-dark);
    }

    .hero-inner {
        padding-block: 70px 74px;
    }

    .hero {
        min-height: auto;
    }

    .top-bar-inner {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .about-list,
    .two-column-list,
    .field-group {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-title {
        font-size: 2.1rem;
    }

    .hero-meta {
        gap: 14px;
    }

    section {
        padding-block: 64px;
    }
}