/* CSS Reset and Modern Foundations */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Color System - Scottish-California Fusion */
    --color-primary: #5a8bd1; /* Moonlit Pacific Blue */
    --color-primary-dark: #1e4080;
    --color-primary-light: #7ba5db;
    --color-secondary: #5fa595; /* Coastal Sage in Moonlight */
    --color-tertiary: #ffb86b; /* Golden Hour Glow */
    --color-accent: #ff8066; /* Warm Sunset Orange */
    --color-accent-dark: #d45c3f;
    
    /* Neutral Grays - Light Mode */
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* Dark Mode Colors */
    --color-surface: #0a0a0a;
    --color-surface-elevated: #1a1a1a;
    --color-surface-secondary: #171717;
    --color-background: #000000;
    
    /* Dark Mode Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #ffffff;
    --color-text-tertiary: #e5e5e5;
    --color-text-inverse: #171717;
    
    /* Dark Mode Border & Dividers */
    --color-border: #262626;
    --color-border-strong: #404040;
    
    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Typography Scale */
    --font-family-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    
    /* Font Sizes - Type Scale */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    --font-size-5xl: 3rem;       /* 48px */
    --font-size-6xl: 3.75rem;    /* 60px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* Spacing Scale */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Scottish-California Gradients */
    --gradient-coastal: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-sunset: linear-gradient(45deg, var(--color-tertiary), var(--color-accent));
    --gradient-horizon: linear-gradient(135deg, var(--color-primary), var(--color-tertiary));
    --gradient-background: linear-gradient(135deg, rgba(44, 90, 160, 0.05), rgba(244, 162, 97, 0.05));
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
}


/* Base Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Layout Containers */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-lg);
}

.container-wide {
    max-width: var(--container-2xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.025em;
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
}

.text-large {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.text-small {
    font-size: var(--font-size-sm);
}

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

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: url('./robertson-tartan-small.jpg');
    background-size: 120px 120px;
    background-repeat: repeat;
    backdrop-filter: blur(12px);
    z-index: 1000;
    transition: all var(--transition-fast);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, transparent 35%, rgba(0, 0, 0, 0.75) 35%, rgba(0, 0, 0, 0.75) 100%);
    pointer-events: none;
    z-index: -1;
}


.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 var(--space-6);
    max-width: var(--container-2xl);
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.brand-logo {
    height: 108px;
    width: auto;
    margin-left: -20px;
    margin-top: 30px;
    position: relative;
    z-index: 1001;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.8)) drop-shadow(-1px -1px 2px rgba(0, 0, 0, 0.6));
    transition: all var(--transition-fast);
}

.nav-brand h1 {
    font-family: 'Cinzel', serif;
    font-size: calc(var(--font-size-4xl) * 1.33);
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.08em;
    position: relative;
    z-index: 2;
    text-shadow: 
        -2px -2px 0 #000,
        2px -2px 0 #000,
        -2px 2px 0 #000,
        2px 2px 0 #000,
        3px 3px 6px rgba(0, 0, 0, 0.9);
    transition: all var(--transition-fast);
}

.nav-brand h1:hover {
    transform: translateY(-1px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    letter-spacing: 0.025em;
    text-transform: uppercase;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-fast);
}

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

/* Navigation button styling */
.nav-menu .btn {
    margin-left: var(--space-4);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-base);
    letter-spacing: 0.05em;
}

.nav-menu .btn-primary {
    color: #ffffff !important;
}

.nav-menu .btn:hover {
    transform: translateY(-1px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    text-shadow: none;
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: #ffffff;
    transform: translateY(-1px);
    backdrop-filter: blur(4px);
}

.btn-large {
    padding: var(--space-6) var(--space-8);
    font-size: var(--font-size-base);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('./herobg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}


.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(90, 139, 209, 0.25) 0%, transparent 50%);
    pointer-events: none;
}


/* Subtle coastal-mountain pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(0deg, transparent 48%, rgba(44, 90, 160, 0.02) 49%, rgba(44, 90, 160, 0.02) 51%, transparent 52%),
        linear-gradient(90deg, transparent 48%, rgba(244, 162, 97, 0.02) 49%, rgba(244, 162, 97, 0.02) 51%, transparent 52%);
    background-size: 60px 60px;
    pointer-events: none;
    opacity: 0.5;
}

.hero-content {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-12) var(--space-12) var(--space-8);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 8px 16px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.hero h1 {
    font-size: clamp(var(--font-size-3xl), 3.5vw, var(--font-size-4xl));
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
    color: #ffffff;
    line-height: var(--line-height-tight);
    letter-spacing: -0.03em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: clamp(var(--font-size-lg), 1.5vw, var(--font-size-xl));
    color: #ffffff;
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    opacity: 1;
    font-weight: var(--font-weight-medium);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero button overrides - glassmorphism style */
.hero-actions .btn-primary {
    background: rgba(44, 90, 160, 0.8) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    backdrop-filter: blur(8px) !important;
    padding: var(--space-6) var(--space-8) !important;
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
}

.hero-actions .btn-primary:hover {
    background: rgba(30, 64, 128, 0.9) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-2px) !important;
    box-shadow: 
        0 12px 24px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
}

.hero-actions .btn-secondary {
    background: rgba(255, 255, 255, 0.15) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    backdrop-filter: blur(8px) !important;
    padding: var(--space-6) var(--space-8) !important;
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
}

.hero-actions .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    transform: translateY(-2px) !important;
    box-shadow: 
        0 12px 24px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.25) !important;
}

/* Section Layouts */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-20);
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

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

/* Services Section */
.services {
    background: var(--color-surface-secondary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-background);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--color-surface);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-coastal);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-border-strong);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-sunset);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-6);
    position: relative;
    z-index: 1;
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.service-card p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Expertise Section */
.expertise-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-20);
    align-items: center;
}

.expertise-text h3 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.expertise-text p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
}

.expertise-highlights {
    list-style: none;
    display: grid;
    gap: var(--space-4);
}

.expertise-highlights li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.expertise-highlights li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.expertise-stats {
    display: grid;
    gap: var(--space-6);
}

.stat {
    text-align: center;
    padding: var(--space-8);
    background: var(--color-surface);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* About Section */
.about {
    background: var(--color-surface-secondary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-20);
    align-items: start;
}

.contact-info h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
}

.contact-methods {
    display: grid;
    gap: var(--space-4);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-secondary);
}

.contact-method strong {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    min-width: 60px;
}

.contact-method a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Contact Form */
.contact-form {
    background: var(--color-surface);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-surface-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: var(--line-height-relaxed);
}

/* Footer */
.footer {
    background: var(--color-gray-900);
    color: var(--color-text-inverse);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-12);
}

.footer-brand h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-light);
    margin-bottom: var(--space-2);
}

.footer-brand p {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    gap: var(--space-8);
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-gray-800);
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* Hamburger Menu */
.nav-mobile {
    display: none;
    align-items: center;
    gap: var(--space-4);
}

.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 900px) {
    .nav-mobile {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: url('./robertson-tartan-small.jpg');
        background-size: 120px 120px;
        background-repeat: repeat;
        flex-direction: column;
        transform: translateX(100%);
        z-index: 999;
        padding: var(--space-8) var(--space-6);
        border-bottom: 1px solid var(--color-border);
        transition: none;
    }
    
    .nav-menu::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.95);
        z-index: -1;
    }
    
    
    .nav-menu.active {
        transform: translateX(0);
        transition: transform 0.3s ease;
    }
    
    .nav-menu li {
        margin: var(--space-4) 0;
        text-align: center;
    }
    
    .nav-menu a {
        font-size: var(--font-size-lg);
        padding: var(--space-4);
        display: block;
    }
    
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .expertise-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    .nav {
        height: 64px;
        padding: 0 var(--space-4);
    }
    
    .nav-menu {
        gap: var(--space-4);
    }
    
    .nav-menu a {
        font-size: var(--font-size-base);
    }
    
    .hero {
        padding: var(--space-20) 0;
        min-height: 80vh;
        background-attachment: scroll;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: var(--space-16) 0;
    }
    
    .section-header {
        margin-bottom: var(--space-12);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .expertise-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-8);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-4);
    }
}

@media (max-width: 480px) {
    .nav-brand h1 {
        font-size: var(--font-size-lg);
    }
    
    .header {
        background-size: 100px 100px;
    }
    
    .btn {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-xs);
    }
    
    .btn-large {
        padding: var(--space-4) var(--space-6);
        font-size: var(--font-size-sm);
    }
    
    .service-card {
        padding: var(--space-6);
    }
    
    .expertise-stats {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: var(--space-6);
    }
}

/* Utility Classes */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Smooth scrolling for anchor links */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Advanced Animations & Micro-interactions */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Intersection Observer Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.in-view {
    opacity: 1;
    transform: translateY(0);
}

.animate-fade-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-left.in-view {
    opacity: 1;
    transform: translateX(0);
}

.animate-fade-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-right.in-view {
    opacity: 1;
    transform: translateX(0);
}

/* Enhanced hover effects */
.service-card {
    background: var(--color-surface);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

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

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.03), rgba(45, 125, 109, 0.03));
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

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

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-border-strong);
}

.service-card:hover .service-icon {
    animation: pulse 2s infinite;
}

/* Interactive cursor effect for hero */
.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    position: relative;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Staggered animation for service cards */
.service-card:nth-child(1) { animation-delay: 0.1s; }
.service-card:nth-child(2) { animation-delay: 0.2s; }
.service-card:nth-child(3) { animation-delay: 0.3s; }
.service-card:nth-child(4) { animation-delay: 0.4s; }
.service-card:nth-child(5) { animation-delay: 0.5s; }
.service-card:nth-child(6) { animation-delay: 0.6s; }

/* Enhanced form interactions */
.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-surface-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    position: relative;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    transform: translateY(-2px);
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: var(--color-border-strong);
}

/* Navigation enhancements */
.nav-menu a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    letter-spacing: 0.025em;
    text-transform: uppercase;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--space-2) 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

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

/* Enhanced button interactions */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* Floating animation for stats */
.stat:nth-child(1) {
    animation: float 6s ease-in-out infinite;
    animation-delay: 0s;
}

.stat:nth-child(2) {
    animation: float 6s ease-in-out infinite;
    animation-delay: 2s;
}

.stat:nth-child(3) {
    animation: float 6s ease-in-out infinite;
    animation-delay: 4s;
}