/* Off-Site IT - "The Digital Architect" Design System
   Surface-based tonal layering, no explicit borders
   Fonts: Manrope (headlines) + Inter (body)
   Optimized for 1080p through 4K displays */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --primary: #0061a5;
    --primary-container: #0099ff;
    --primary-fixed: #d2e4ff;
    --primary-fixed-dim: #9fcaff;
    --on-primary: #ffffff;
    --on-primary-fixed: #001d36;
    --secondary: #5d5e61;
    --secondary-container: #e2e2e5;
    --on-secondary-container: #636467;
    --tertiary: #306193;
    --surface: #f7f9fc;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #f2f4f7;
    --surface-container: #eceef1;
    --surface-container-high: #e6e8eb;
    --surface-container-highest: #e0e3e6;
    --on-surface: #191c1e;
    --on-surface-variant: #3f4753;
    --outline: #707884;
    --outline-variant: #bfc7d5;
    --inverse-surface: #2d3133;
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 2rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--primary-fixed);
    color: var(--on-primary-fixed);
}

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

a:hover { color: var(--primary-container); }

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

.container {
    max-width: 76rem;
    margin: 0 auto;
    padding: 0 2rem;
}

h1, h2, h3, h4 {
    font-family: 'Manrope', sans-serif;
    color: var(--on-surface);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* ===================== HEADER ===================== */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 76rem;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 130px;
    width: auto;
    margin: -26px 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
}

.nav-links a {
    color: var(--on-surface-variant);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.4rem 0;
    transition: color 0.2s ease;
}

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

.nav-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%) !important;
    color: var(--on-primary) !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: var(--radius-md) !important;
    font-size: 0.6875rem !important;
    letter-spacing: 0.05em !important;
    transition: opacity 0.2s ease, transform 0.2s ease !important;
}

.nav-cta:hover {
    opacity: 0.9 !important;
    color: var(--on-primary) !important;
    transform: scale(1.02);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--on-surface);
    border-radius: 2px;
}

/* ===================== HERO ===================== */
.hero {
    padding: 6.5rem 2rem 3.5rem;
    max-width: 76rem;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
    align-items: center;
    min-height: 0;
}

.hero-content {
    padding-top: 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--secondary-container);
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 1.25rem;
}

.hero-badge span {
    font-family: 'Inter', sans-serif;
    font-size: 0.5625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--on-secondary-container);
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    margin-bottom: 1.75rem;
    line-height: 1.7;
    max-width: 460px;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Hero image panel */
.hero-visual {
    position: relative;
}

.hero-image-wrap {
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: rotate(2deg);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.1);
    position: relative;
}

.hero-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.3);
    mix-blend-mode: multiply;
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top right, rgba(0, 97, 165, 0.35), transparent);
}

/* Floating data chip on hero */
.hero-chip {
    position: absolute;
    bottom: -1rem;
    left: -1rem;
    background: var(--surface-container-lowest);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    max-width: 200px;
    z-index: 2;
}

.hero-chip-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}

.hero-chip-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-chip-header span {
    font-family: 'Inter', sans-serif;
    font-size: 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.hero-chip p {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--on-surface);
    line-height: 1.4;
}

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6875rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
    color: var(--on-primary);
    box-shadow: 0 8px 20px rgba(0, 97, 165, 0.2);
}

.btn-primary:hover {
    transform: scale(1.02);
    opacity: 0.95;
    color: var(--on-primary);
}

.btn-outline {
    background: var(--surface-container-highest);
    color: var(--on-surface);
}

.btn-outline:hover {
    background: var(--surface-container-high);
    color: var(--on-surface);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.btn-inverse {
    background: var(--surface-container-lowest);
    color: var(--primary);
    font-weight: 800;
    font-size: 0.875rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.btn-inverse:hover {
    background: #fff;
    color: var(--primary);
    transform: scale(1.02);
}

/* ===================== SECTION LABELS ===================== */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--on-surface-variant);
    max-width: 560px;
    font-size: 0.9375rem;
    line-height: 1.6;
}

.section-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.5625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--primary);
    display: block;
    margin-bottom: 0.75rem;
}

/* ===================== FEATURES / BENTO ===================== */
.features {
    background: var(--surface-container-low);
    padding: 4rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-xl);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    box-shadow: 0 16px 32px rgba(25, 28, 30, 0.06);
}

.feature-card:first-child {
    grid-column: span 2;
}

.feature-card.card-accent {
    background: var(--primary);
    color: var(--on-primary);
}

.feature-card.card-accent h3 { color: var(--on-primary); }
.feature-card.card-accent p { color: rgba(255, 255, 255, 0.8); }

.feature-card.card-muted {
    background: var(--surface-container-highest);
}

.feature-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-md);
    background: var(--primary-fixed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.feature-card.card-accent .feature-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--on-primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-card:first-child h3 { font-size: 1.5rem; }

.feature-card p {
    color: var(--on-surface-variant);
    font-size: 0.8125rem;
    line-height: 1.6;
}

/* Card image backgrounds */
.feature-card-image {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.feature-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
}

.feature-card .feature-card-content {
    position: relative;
    z-index: 1;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 1.25rem;
}

.feature-tag {
    background: var(--secondary-container);
    color: var(--on-secondary-container);
    padding: 0.1875rem 0.625rem;
    border-radius: 999px;
    font-size: 0.5625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.feature-card.card-wide {
    grid-column: span 2;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
}

.feature-card.card-wide .feature-info { flex: 1; }

.feature-card.card-wide .feature-visual {
    flex: 1;
    border-radius: var(--radius-lg);
    height: 10rem;
    overflow: hidden;
}

.feature-card.card-wide .feature-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===================== CTA SECTION ===================== */
.cta-section {
    padding: 2rem 2rem 4rem;
}

.cta-inner {
    max-width: 76rem;
    margin: 0 auto;
    background: var(--primary);
    color: var(--on-primary);
    border-radius: 2.5rem;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 97, 165, 0.25);
}

.cta-inner h2 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--on-primary);
}

.cta-inner p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    max-width: 520px;
    margin: 0 auto 2rem;
}

.cta-grid-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.08;
    pointer-events: none;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
}

.cta-grid-pattern > div {
    border-right: 1px solid rgba(255, 255, 255, 0.3);
}

/* ===================== PAGE HEADER ===================== */
.page-header {
    padding: 6.5rem 0 2.5rem;
    text-align: center;
    background: var(--surface);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.page-header p {
    font-size: 0.9375rem;
    color: var(--on-surface-variant);
    max-width: 520px;
    margin: 0 auto;
}

.error-page h1 { font-size: 5rem; }

/* ===================== SERVICES DETAIL ===================== */
.services-detail {
    padding: 3rem 0;
}

.service-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2.5rem 0;
}

.service-block:nth-child(even) {
    direction: rtl;
}

.service-block:nth-child(even) > * {
    direction: ltr;
}

.service-info h2 {
    font-size: 1.375rem;
    margin-bottom: 0.75rem;
}

.service-info p {
    color: var(--on-surface-variant);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.service-info ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-info li {
    padding-left: 1.25rem;
    position: relative;
    color: var(--on-surface);
    font-size: 0.8125rem;
}

.service-info li::before {
    content: '\203A';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.1em;
}

.service-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===================== ABOUT ===================== */
.about-content {
    padding: 3rem 0;
}

.about-block {
    margin-bottom: 2.5rem;
}

.about-hero-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 2.5rem;
    max-height: 320px;
}

.about-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-block h2 {
    font-size: 1.375rem;
    margin-bottom: 1rem;
}

.about-block p {
    color: var(--on-surface-variant);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    max-width: 680px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.value-card {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: box-shadow 0.3s ease;
}

.value-card:hover {
    box-shadow: 0 16px 32px rgba(25, 28, 30, 0.06);
}

.value-card h3 {
    font-family: 'Manrope', sans-serif;
    color: var(--on-surface);
    margin-bottom: 0.375rem;
    font-size: 0.9375rem;
}

.value-card p {
    color: var(--on-surface-variant);
    font-size: 0.8125rem;
    margin-bottom: 0;
}

/* ===================== CONTACT ===================== */
.contact-section {
    padding: 3rem 0 4rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
}

.contact-form-wrap h2,
.contact-info h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 500;
    color: var(--on-surface);
    font-size: 0.8125rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.6875rem 0.875rem;
    background: var(--surface-container-high);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--on-surface);
    font-size: 0.8125rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: var(--surface-container-lowest);
    border-color: rgba(0, 97, 165, 0.4);
    box-shadow: 0 0 0 3px rgba(0, 97, 165, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--outline); }

.contact-form .btn { width: 100%; margin-top: 0.375rem; }

.info-item { margin-bottom: 1.5rem; }

.info-item h3 {
    color: var(--primary);
    margin-bottom: 0.375rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.5625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.info-item p {
    color: var(--on-surface-variant);
    font-size: 0.8125rem;
}

/* ===================== ALERTS ===================== */
.alert {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin-top: 1.25rem;
}

.alert-success {
    background: var(--primary-fixed);
}

.alert-success h3 {
    color: var(--on-primary-fixed);
    margin-bottom: 0.375rem;
    font-family: 'Manrope', sans-serif;
    font-size: 1rem;
}

.alert-success p { color: var(--on-primary-fixed); font-size: 0.8125rem; }

/* HTMX */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline; }
.htmx-request .htmx-indicator + span { display: none; }

/* ===================== FOOTER ===================== */
.site-footer {
    margin-top: auto;
    background: var(--surface-container-low);
}

.footer-container {
    max-width: 76rem;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
    padding: 3rem 0;
}

.footer-logo {
    height: 48px;
    margin-bottom: 1rem;
}

.footer-col p {
    color: var(--on-surface-variant);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.footer-col h4 {
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 0.75rem;
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.footer-col ul { list-style: none; }

.footer-col li {
    margin-bottom: 0.5rem;
    color: var(--on-surface-variant);
    font-size: 0.8125rem;
}

.footer-col li a {
    color: var(--on-surface-variant);
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.footer-col li a:hover {
    color: var(--on-surface);
    transform: translateX(2px);
}

.footer-bottom { padding: 1.5rem 0; }

.footer-bottom p {
    font-family: 'Inter', sans-serif;
    font-size: 0.5625rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--outline);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem;
    }

    .nav-open .nav-links { display: flex; }

    .hero {
        grid-template-columns: 1fr;
        padding: 5.5rem 1.5rem 2rem;
    }

    .hero-visual { display: none; }

    .hero h1 { font-size: 2.25rem; }

    .features-grid { grid-template-columns: 1fr; }

    .feature-card:first-child,
    .feature-card.card-wide { grid-column: span 1; }

    .feature-card.card-wide { flex-direction: column; }

    .service-block {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-block:nth-child(even) { direction: ltr; }

    .values-grid { grid-template-columns: 1fr 1fr; }

    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }

    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }

    .cta-inner {
        border-radius: var(--radius-xl);
        padding: 2.5rem 1.5rem;
    }

    .page-header { padding: 5.5rem 0 2rem; }
}

/* 4K+ scaling: tighten the layout */
@media (min-width: 2000px) {
    html { font-size: 18px; }
    .container, .nav-container, .footer-container, .cta-inner { max-width: 82rem; }
    .hero { max-width: 82rem; }
}

@media (min-width: 2560px) {
    html { font-size: 20px; }
    .container, .nav-container, .footer-container, .cta-inner { max-width: 88rem; }
    .hero { max-width: 88rem; }
}

/* Transitions */
#main-content { transition: opacity 0.15s ease; }
.htmx-swapping #main-content { opacity: 0; }