/* ========================================
   Houenfer Precision - Main Stylesheet
   Modern / Minimal / Professional / Industrial
   ======================================== */

/* CSS Variables */
:root {
    --color-primary: #1a1a1a;
    --color-secondary: #2d2d2d;
    --color-accent: #c49a6c;
    --color-accent-hover: #b08a5e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-background: #ffffff;
    --color-background-alt: #f7f7f7;
    --color-border: #e5e5e5;
    --color-white: #ffffff;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.75;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --container-max: 1200px;
    --container-padding: 1.5rem;
    --border-radius: 4px;
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 1.35rem;
    font-weight: 300;
    color: var(--color-text-light);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-menu a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-accent);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
}

.nav-cta {
    padding: 0.5rem 1.25rem;
    border: 1.5px solid var(--color-primary);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--color-primary);
    color: var(--color-white) !important;
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--border-radius);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

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

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

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

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-xl) var(--container-padding);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 2.5vw, var(--font-size-xl));
    font-weight: 400;
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

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

.hero-buttons .btn-secondary {
    border-color: var(--color-white);
    color: var(--color-white);
}

.hero-buttons .btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--spacing-2xl);
}

.section-header h2 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

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

/* ========================================
   Capabilities Section
   ======================================== */
.capabilities-section {
    padding: var(--spacing-3xl) 0;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.capability-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.capability-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.capability-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.capability-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.capability-card:hover .capability-image img {
    transform: scale(1.05);
}

.capability-content {
    padding: var(--spacing-lg);
}

.capability-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.capability-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Why Section
   ======================================== */
.why-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-background-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.feature-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Process Section
   ======================================== */
.process-section {
    padding: var(--spacing-3xl) 0;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.step-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    min-width: 60px;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Industries Section
   ======================================== */
.industries-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-background-alt);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.industry-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.industry-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.industry-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.industry-item h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

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

.cta-content {
    max-width: 640px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: var(--font-size-lg);
    opacity: 0.85;
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons .btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

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

.cta-buttons .btn-secondary {
    border-color: var(--color-white);
    color: var(--color-white);
}

.cta-buttons .btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

.cta-email {
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

.cta-email a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.cta-email a:hover {
    opacity: 1;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo-text,
.footer-brand .logo-sub {
    color: var(--color-white);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    line-height: var(--line-height-relaxed);
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a,
.footer-contact a {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    opacity: 0.5;
}

/* ========================================
   Page Header
   ======================================== */
.page-header {
    padding: calc(72px + var(--spacing-3xl)) 0 var(--spacing-2xl);
    background: var(--color-background-alt);
    text-align: center;
}

.page-header h1 {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   About Page
   ======================================== */
.about-section {
    padding: var(--spacing-3xl) 0;
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text h2 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.about-text p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

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

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

/* Services Section */
.services-section {
    padding: var(--spacing-3xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* How We Work */
.how-we-work {
    padding: var(--spacing-3xl) 0;
}

.work-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.work-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.work-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-accent);
    min-width: 40px;
    flex-shrink: 0;
    line-height: 1;
}

.work-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.work-text p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Capabilities Page
   ======================================== */
.capabilities-overview {
    padding: var(--spacing-2xl) 0 0;
}

.capability-detail {
    padding: var(--spacing-3xl) 0;
}

.capability-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.capability-row.reverse {
    direction: rtl;
}

.capability-row.reverse > * {
    direction: ltr;
}

.capability-image-large {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.capability-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

.capability-text h2 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.capability-text p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.capability-text h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.capability-text ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.capability-text ul li {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xs);
}

.capability-text .btn {
    margin-top: var(--spacing-md);
}

/* Service Levels */
.services-list {
    padding: var(--spacing-3xl) 0;
}

.service-levels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.service-level {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.service-level h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-level p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Quality Page
   ======================================== */
.quality-approach {
    padding: var(--spacing-3xl) 0;
}

.quality-process {
    padding: var(--spacing-3xl) 0;
}

.quality-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.quality-step {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.quality-step:hover {
    box-shadow: var(--shadow-md);
}

.step-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
}

.quality-step h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

.step-body p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    padding-left: calc(28px + var(--spacing-md));
}

.what-to-expect {
    padding: var(--spacing-3xl) 0;
}

.expectations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.expectation-item {
    padding: var(--spacing-lg);
}

.expectation-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.expectation-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ========================================
   Contact Page
   ======================================== */
.contact-section {
    padding: var(--spacing-3xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info h2 {
    font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.contact-info > p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-text h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 2px;
}

.contact-text a {
    font-size: var(--font-size-base);
    color: var(--color-accent);
}

.contact-text a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.contact-note {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.contact-note h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-note ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
}

.contact-note li {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xs);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-background);
    border: 1.5px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

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

.form-group input[type="file"] {
    padding: 0.5rem;
    cursor: pointer;
}

.form-group small {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.form-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--spacing-xs);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-intro,
    .capability-row,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .capability-row.reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.25rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features-grid,
    .services-grid,
    .service-levels,
    .expectations-grid {
        grid-template-columns: 1fr;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-step,
    .work-item {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .step-number,
    .work-number {
        font-size: var(--font-size-2xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .step-body p {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
    text-align: center;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}