/*
* AVIC Labs LLC company site theme.
* Monochrome, sharp, technical, and conversion-focused.
*/

:root {
    --bg-color: #050505;
    --bg-secondary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --primary-color: #38bdf8;
    --card-bg: #121212;
    --card-border: #262626;
    --card-hover-border: #38bdf8;
    --glass-bg: rgba(18, 18, 18, 0.82);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 16px;
    --nav-height: 80px;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Space Grotesk', sans-serif;
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --bg-secondary: #f5f5f5;
    --text-primary: #0a0a0a;
    --text-secondary: #525252;
    --accent-color: #0284c7;
    --accent-hover: #0369a1;
    --primary-color: #0284c7;
    --card-bg: #ffffff;
    --card-border: #e5e5e5;
    --card-hover-border: #0284c7;
    --glass-bg: rgba(255, 255, 255, 0.88);
    --glass-border: rgba(0, 0, 0, 0.06);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

body {
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.7;
    margin: 0;
    overflow-x: hidden;
    width: 100%;
    position: relative;
    transition: background-color 0.25s ease, color 0.25s ease;
    -webkit-font-smoothing: antialiased;
}

body::before {
    background-image:
        linear-gradient(var(--card-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--card-border) 1px, transparent 1px);
    background-size: 56px 56px;
    content: "";
    inset: 0;
    opacity: 0.16;
    pointer-events: none;
    position: fixed;
    z-index: -2;
}

::selection {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

::-webkit-scrollbar {
    width: 12px;
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background-color: var(--card-border);
    border: 3px solid var(--bg-color);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-color);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

p,
li {
    color: var(--text-secondary);
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

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

img {
    height: auto;
    max-width: 100%;
}

.hidden {
    display: none;
}

.section {
    overflow: hidden;
    padding: 112px 0;
    position: relative;
}

.section-bg {
    background-color: var(--bg-secondary);
}

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

.section-header {
    margin-bottom: 64px;
    text-align: center;
}

.section-header h2 {
    display: inline-block;
    font-size: 3.25rem;
    margin-bottom: 12px;
    position: relative;
}

.section-header h2::after {
    background: var(--accent-color);
    border-radius: 2px;
    content: "";
    display: block;
    height: 4px;
    margin: 14px auto 0;
    width: 60px;
}

.section-header .subtitle,
.intent-eyebrow,
.hero-subtitle {
    color: var(--accent-color);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.compact-header {
    margin-bottom: 0;
}

.compact-header h2::after {
    margin-left: 0;
}

.btn {
    border-radius: 0;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0;
    padding: 12px 28px;
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--accent-color);
    border: 1px solid var(--accent-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-outline,
.btn-outline-primary {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline:hover,
.btn-outline-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-color);
}

.nav-cta {
    padding: 9px 18px;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 2rem;
    position: relative;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
    z-index: 1;
}

.glass-card:hover {
    border-color: var(--card-hover-border);
    box-shadow: 0 20px 40px -22px rgba(0, 0, 0, 0.45);
    transform: translateY(-4px);
}

.navbar {
    background: transparent;
    padding: 20px 0;
    transition: background-color 0.25s ease, padding 0.25s ease, border-color 0.25s ease;
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    padding: 10px 0;
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0 12px;
    padding: 5px 0;
    position: relative;
}

.nav-link::before {
    background-color: var(--accent-color);
    bottom: 0;
    content: "";
    height: 2px;
    left: 0;
    position: absolute;
    transition: width 0.25s ease;
    width: 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary) !important;
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 100%;
}

.theme-toggle {
    align-items: center;
    background: transparent;
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    height: 40px;
    justify-content: center;
    transition: border-color 0.25s ease, color 0.25s ease;
    width: 40px;
}

.theme-toggle:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.navbar-toggler {
    border: none;
    color: var(--text-primary);
    padding: 0;
}

.navbar-toggler:focus {
    box-shadow: none;
}

#hero {
    align-items: center;
    display: flex;
    min-height: 100vh;
    overflow: hidden;
    padding-top: var(--nav-height);
    position: relative;
    z-index: 1;
}

#particles-js {
    inset: 0;
    opacity: 0.45;
    position: absolute;
    z-index: -1;
}

.hero-layout {
    align-items: center;
    display: grid;
    gap: 48px;
    grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr);
}

.hero-layout > * {
    min-width: 0;
}

.hero-content {
    max-width: 820px;
    width: 100%;
    z-index: 2;
}

.hero-title {
    color: var(--text-primary);
    font-size: 5.5rem;
    font-weight: 900;
    margin: 0 0 18px;
}

.hero-seo-title {
    color: var(--text-primary);
    display: block;
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.35;
    margin-bottom: 1.25rem;
}

.hero-summary {
    color: var(--text-secondary);
    font-size: 1.14rem;
    margin: 0 0 1.5rem;
    max-width: 760px;
}

.hero-typed-wrapper {
    color: var(--text-secondary);
    font-size: 1.45rem;
    font-weight: 400;
    margin-bottom: 2.5rem;
    min-height: 2.3rem;
}

.typed-cursor {
    color: var(--accent-color);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-proof-panel h2 {
    font-size: 2rem;
}

.proof-grid-mini {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, 1fr);
    margin-top: 1rem;
}

.proof-grid-mini div {
    border-top: 1px solid var(--card-border);
    padding-top: 14px;
}

.proof-grid-mini strong {
    color: var(--accent-color);
    display: block;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    line-height: 1;
}

.proof-grid-mini span {
    color: var(--text-secondary);
    display: block;
    font-size: 0.85rem;
    margin-top: 0.4rem;
}

.intent-proof-strip {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--card-border);
    border-top: 1px solid var(--card-border);
    padding: 24px 0;
}

.proof-metric {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.35rem;
}

.proof-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.service-card {
    min-height: 100%;
}

.service-card h3,
.case-card h3 {
    color: var(--primary-color);
    font-size: 1.35rem;
}

.service-icon {
    align-items: center;
    border: 1px solid var(--card-border);
    color: var(--accent-color);
    display: flex;
    font-size: 1.35rem;
    height: 48px;
    justify-content: center;
    margin-bottom: 1.25rem;
    width: 48px;
}

.inline-link {
    align-items: center;
    color: var(--accent-color);
    display: inline-flex;
    font-weight: 700;
    gap: 8px;
    margin-top: auto;
}

.fit-list {
    display: grid;
    gap: 14px;
}

.fit-item {
    align-items: flex-start;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex;
    gap: 14px;
    padding: 1.1rem 1.25rem;
}

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

.fit-item span {
    color: var(--text-secondary);
}

.process-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.process-step span {
    color: var(--accent-color);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
}

.process-step h3 {
    font-size: 1.35rem;
}

.case-metrics,
.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 1rem 0 1.5rem;
}

.case-metrics span,
.tag-row span {
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    display: inline-flex;
    font-size: 0.86rem;
    padding: 7px 10px;
}

.detail-metrics {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.detail-metrics .glass-card {
    align-items: center;
    justify-content: center;
    min-height: 104px;
    text-align: center;
}

.detail-metrics strong {
    color: var(--accent-color);
    font-family: var(--font-heading);
    font-size: 1.6rem;
}

.quote-card {
    border-left: 4px solid var(--accent-color);
}

.quote-card p {
    color: var(--text-primary);
    font-size: 1.2rem;
}

.quote-card cite {
    color: var(--text-secondary);
    font-style: normal;
}

.faq-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.08rem;
    margin-bottom: 1.4rem;
}

.profile-img-container {
    padding: 20px;
    position: relative;
}

.profile-img-container::after {
    border: 2px solid var(--accent-color);
    border-radius: 4px;
    bottom: 0;
    content: "";
    left: 40px;
    position: absolute;
    right: 0;
    top: 40px;
    z-index: 0;
}

.profile-img {
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    filter: grayscale(100%);
    position: relative;
    transition: filter 0.35s ease, transform 0.35s ease;
    z-index: 1;
}

.profile-img:hover {
    filter: grayscale(0);
    transform: translate(-8px, -8px);
}

.stats-row {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 2rem;
}

.stat-item {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    padding: 14px;
    text-align: center;
}

.stat-item h3 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 0.84rem;
    margin: 0;
    text-transform: uppercase;
}

.timeline-wrapper {
    margin: 0 auto;
    max-width: 980px;
    position: relative;
}

.timeline-wrapper::before {
    background: var(--card-border);
    bottom: 0;
    content: "";
    left: 16px;
    position: absolute;
    top: 0;
    width: 2px;
}

.experience-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    margin-bottom: 24px;
    margin-left: 48px;
    padding: 1.6rem;
    position: relative;
}

.experience-item::before {
    background: var(--accent-color);
    border: 4px solid var(--bg-secondary);
    border-radius: 50%;
    content: "";
    height: 20px;
    left: -42px;
    position: absolute;
    top: 28px;
    width: 20px;
}

.exp-date {
    color: var(--accent-color);
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 0.55rem;
}

.exp-title {
    font-size: 1.45rem;
    margin-bottom: 0.3rem;
}

.exp-company {
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.exp-list {
    margin-bottom: 0;
    padding-left: 1.15rem;
}

.exp-list li {
    margin-bottom: 0.55rem;
}

.intent-list {
    margin: 0;
    padding-left: 1.2rem;
}

.intent-list li {
    margin-bottom: 0.7rem;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 2rem;
}

.contact-item {
    align-items: flex-start;
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
}

.contact-icon {
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    color: var(--accent-color);
    display: flex;
    flex: 0 0 48px;
    height: 48px;
    justify-content: center;
    width: 48px;
}

.contact-details h3 {
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
}

.contact-details p {
    margin-bottom: 0;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.social-btn {
    align-items: center;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    display: flex;
    height: 42px;
    justify-content: center;
    width: 42px;
}

.social-btn:hover {
    border-color: var(--accent-color);
}

.form-control {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 0;
    color: var(--text-primary);
    padding: 12px 14px;
}

.form-control:focus {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    box-shadow: none;
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.form-label {
    color: var(--text-primary);
}

.alert-success,
.alert-danger {
    border-radius: 0;
}

footer {
    background: var(--bg-color);
    border-top: 1px solid var(--card-border);
    padding: 32px 0;
}

footer p {
    margin: 0;
}

.back-to-top {
    background: var(--accent-color);
    bottom: 24px;
    color: #ffffff;
    height: 44px;
    opacity: 0;
    pointer-events: none;
    position: fixed;
    right: 24px;
    transition: opacity 0.25s ease, transform 0.25s ease;
    width: 44px;
    z-index: 20;
}

.back-to-top.active {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    color: #ffffff;
    transform: translateY(-3px);
}

@media (max-width: 1199px) {
    .hero-title {
        font-size: 4.5rem;
    }

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

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        margin-top: 16px;
        padding: 16px;
    }

    .nav-link {
        margin: 8px 0;
    }

    .hero-layout {
        grid-template-columns: 1fr;
        padding-bottom: 72px;
        padding-top: 72px;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .compact-header {
        margin-bottom: 36px;
        text-align: center !important;
    }

    .compact-header h2::after {
        margin-left: auto;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0;
    }

    .section-header h2,
    .intent-hero h1 {
        font-size: 2.55rem;
    }

    .hero-title {
        font-size: 3.1rem;
    }

    .hero-seo-title {
        font-size: 1.35rem;
    }

    .hero-typed-wrapper {
        font-size: 1.15rem;
        min-height: 2rem;
    }

    .hero-proof-panel h2 {
        font-size: 1.6rem;
    }

    .hero-proof-panel {
        width: 100%;
    }

    .proof-grid-mini,
    .process-grid,
    .faq-grid,
    .detail-metrics,
    .stats-row {
        grid-template-columns: 1fr;
    }

    .hero-buttons .btn,
    .d-flex.flex-column.flex-sm-row .btn {
        width: 100%;
    }

    .profile-img-container {
        padding: 10px;
    }

    .profile-img-container::after {
        left: 24px;
        top: 24px;
    }
}

@media (max-width: 576px) {
    .navbar .container {
        margin-left: auto;
        margin-right: auto;
        max-width: calc(100% - 24px);
        padding-left: 0;
        padding-right: 0;
    }

    .glass-card,
    .contact-card {
        padding: 1.35rem;
    }

    .section-header h2,
    .intent-hero h1 {
        font-size: 2.25rem;
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .company-hero .hero-title {
        margin-left: auto;
        margin-right: auto;
        max-width: none;
    }

    .company-hero .container,
    .company-hero .hero-content,
    .company-hero .hero-seo-title,
    .company-hero .hero-summary,
    .company-hero .hero-typed-wrapper {
        max-width: 100%;
        min-width: 0;
        overflow-wrap: break-word;
    }

    .company-hero .container {
        overflow: hidden;
    }

    .company-hero .hero-content,
    .company-hero .hero-proof-panel {
        margin-left: auto;
        margin-right: auto;
        max-width: 100%;
        text-align: center;
    }

    .company-hero .hero-buttons {
        justify-content: center;
    }

    .btn {
        width: 100%;
    }
}