/* ============================================
   MARKSHA BUILDING SOLUTIONS - STYLES
   Modern Professional Website Design
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f2744;
    --secondary: #2d9596;
    --secondary-light: #38b2ac;
    --secondary-dark: #247373;
    --accent: #d69e2e;
    --accent-light: #ecc94b;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f7fafc;
    --gray-100: #edf2f7;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e0;
    --gray-400: #a0aec0;
    --gray-500: #718096;
    --gray-600: #4a5568;
    --gray-700: #2d3748;
    --gray-800: #1a202c;
    --gray-900: #171923;

    /* Typography */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-800);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

h4 {
    font-size: 1.125rem;
}

p {
    margin-bottom: var(--space-md);
}

.lead {
    font-size: 1.125rem;
    color: var(--gray-600);
}

strong {
    color: var(--primary);
    font-weight: 600;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--space-4xl) 0;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--secondary);
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* Logo */
.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-mark {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.logo-tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    padding: var(--space-sm) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-link.nav-cta {
    background: var(--primary);
    color: var(--white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
}

.nav-link.nav-cta::after {
    display: none;
}

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

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gray-700);
    transition: transform var(--transition-base);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--secondary-dark) 100%);
    z-index: 0;
}

/* Geometric Pattern Overlay */
.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(30deg, rgba(255, 255, 255, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.03) 87.5%, rgba(255, 255, 255, 0.03)),
        linear-gradient(150deg, rgba(255, 255, 255, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.03) 87.5%, rgba(255, 255, 255, 0.03)),
        linear-gradient(30deg, rgba(255, 255, 255, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.03) 87.5%, rgba(255, 255, 255, 0.03)),
        linear-gradient(150deg, rgba(255, 255, 255, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.03) 87.5%, rgba(255, 255, 255, 0.03)),
        linear-gradient(60deg, rgba(255, 255, 255, 0.04) 25%, transparent 25.5%, transparent 75%, rgba(255, 255, 255, 0.04) 75%, rgba(255, 255, 255, 0.04)),
        linear-gradient(60deg, rgba(255, 255, 255, 0.04) 25%, transparent 25.5%, transparent 75%, rgba(255, 255, 255, 0.04) 75%, rgba(255, 255, 255, 0.04));
    background-size: 80px 140px;
    background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
}

/* Building Silhouette Pattern */
.hero-bg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background:
        linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: var(--space-xl);
}

.hero-title {
    color: var(--white);
    margin-bottom: var(--space-lg);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-title .highlight {
    color: var(--accent-light);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-2xl);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    justify-content: center;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge i {
    color: var(--accent-light);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--gray-50);
}

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

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1.5fr 1fr;
    }
}

.about-content p {
    color: var(--gray-600);
}

/* About Boxes Row - Mission & Highlight side by side */
.about-boxes {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

@media (min-width: 768px) {
    .about-boxes {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
        max-width: 100%;
    }

    .about-boxes .about-mission,
    .about-boxes .about-highlight {
        min-height: 220px;
    }
}

.about-mission {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Decorative geometric element */
.about-mission::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.about-mission::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
}

.about-mission h3 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--white);
    margin-bottom: var(--space-sm);
    font-size: 1.25rem;
    position: relative;
    z-index: 1;
}

.about-mission h3 i {
    color: var(--accent-light);
    font-size: 1.5rem;
}

.about-mission p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.about-highlight {
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    justify-content: center;
}

.about-highlight::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.about-highlight .highlight-icon {
    display: none;
}

.about-highlight .highlight-content {
    position: relative;
    z-index: 1;
}

.about-highlight h3 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--white);
    margin-bottom: var(--space-sm);
    font-size: 1.25rem;
}

.about-highlight h3 i {
    color: var(--accent-light);
    font-size: 1.5rem;
}

.about-highlight p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    line-height: 1.7;
}

.about-highlight strong {
    color: var(--accent-light);
}

/* Stats */
.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.stat-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.service-icon.ireland {
    background: linear-gradient(135deg, #169b62 0%, #ff883e 100%);
}

.service-card h3 {
    margin-bottom: var(--space-sm);
    color: var(--gray-800);
}

.service-card p {
    color: var(--gray-500);
    margin-bottom: var(--space-md);
}

.service-list {
    border-top: 1px solid var(--gray-100);
    padding-top: var(--space-md);
}

.service-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    font-size: 0.9375rem;
    color: var(--gray-600);
}

.service-list li::before {
    content: '✓';
    color: var(--secondary);
    font-weight: 700;
}

/* ============================================
   WHY US SECTION
   ============================================ */
.why-us {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.why-us .section-tag {
    color: var(--accent-light);
}

.why-us .section-title {
    color: var(--white);
}

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

.why-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.why-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--primary-dark);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.why-card h3 {
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.why-card p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

/* ============================================
   CLIENTS SECTION
   ============================================ */
.clients {
    background: var(--gray-50);
}

.clients-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    justify-content: center;
}

.client-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
    min-width: 250px;
}

.client-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.client-logo {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 2rem;
    margin: 0 auto var(--space-md);
    transition: all var(--transition-base);
}

.client-card:hover .client-logo {
    background: var(--primary);
    color: var(--white);
}

.client-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--gray-800);
    margin-bottom: var(--space-xs);
}

.client-location {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.client-location i {
    color: var(--secondary);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-card {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-card:hover {
    background: var(--gray-100);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.contact-link {
    display: inline-block;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.contact-link:hover {
    color: var(--primary);
    text-decoration: underline;
}

.contact-details p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

.address {
    line-height: 1.8;
}

/* Contact CTA */
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
}

.cta-box h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

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

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

.cta-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.cta-note i {
    color: var(--accent-light);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo-mark {
    color: var(--white);
}

.footer-brand .logo-tag {
    color: var(--secondary);
}

.footer-brand p {
    margin-top: var(--space-md);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer h4 {
    font-size: 1rem;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.footer ul li {
    padding: var(--space-xs) 0;
}

.footer ul li a {
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer ul li a:hover {
    color: var(--secondary);
}

.footer ul li a i {
    margin-right: var(--space-sm);
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--space-xl);
    text-align: center;
    font-size: 0.875rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll reveal classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 991px) {
    :root {
        --container-padding: 1.25rem;
    }

    section {
        padding: var(--space-3xl) 0;
    }
}

/* Mobile */
@media (max-width: 767px) {
    :root {
        --container-padding: 1rem;
    }

    section {
        padding: var(--space-2xl) 0;
    }

    /* Mobile Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px var(--space-xl) var(--space-xl);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-base);
        gap: 0;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        width: 100%;
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-link.nav-cta {
        margin-top: var(--space-md);
        text-align: center;
    }

    /* Hero adjustments */
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }

    /* About stats */
    .about-stats {
        grid-template-columns: 1fr;
    }

    /* Service cards */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* Why us */
    .why-grid {
        grid-template-columns: 1fr;
    }

    /* Clients */
    .client-card {
        width: 100%;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }
}

/* Small phones */
@media (max-width: 374px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

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

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

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

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--space-md);
}

.mb-2 {
    margin-bottom: var(--space-xl);
}

.mb-3 {
    margin-bottom: var(--space-2xl);
}

/* Overlay for mobile menu */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}