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

:root {
    /* Brand Colors - Enhanced */
    --color-primary-navy: #0A2647; 
    --color-primary-dark: #051830;
    --color-primary-light: #144275;
    
    --color-secondary-gray: #4A5568; 
    --color-gray-light: #A0AEC0;
    
    --color-accent-silver: #E2E8F0; 
    --color-accent-blue: #3182CE; 
    --color-accent-blue-glow: rgba(49, 130, 206, 0.4);
    
    --color-text-dark: #1A202C;
    --color-text-light: #F7FAFC;
    --color-white: #FFFFFF;
    
    --color-success: #2F855A;
    --color-background-light: #F8FAFC;
    --color-background-offwhite: #EDF2F7;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-primary-light) 100%);
    --gradient-card: linear-gradient(to bottom right, rgba(255,255,255,0.9), rgba(248,250,252,0.8));
    --gradient-accent: linear-gradient(90deg, var(--color-accent-blue) 0%, var(--color-primary-light) 100%);
    --gradient-mesh: radial-gradient(at 0% 0%, hsla(211, 74%, 40%, 1) 0, transparent 50%), radial-gradient(at 50% 0%, hsla(208, 100%, 27%, 1) 0, transparent 50%), radial-gradient(at 100% 0%, hsla(211, 74%, 40%, 1) 0, transparent 50%);

    /* Typography - Fluid (clamp) */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 2rem);
    --text-3xl: clamp(2rem, 1.75rem + 1.25vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 4.5rem);

    /* Spacing - Mobile First */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Shadows & Glass */
    --shadow-sm: 0 2px 4px 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 25px 50px -12px rgba(0,0,0,0.25);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --glass-blur: blur(12px);

    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    line-height: 1.6;
    background-color: var(--color-background-light);
    overflow-x: hidden;
    position: relative;
    font-size: var(--text-base);
}

/* Noise Texture */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9000;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary-navy);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

h1 { font-size: var(--text-4xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-3xl); letter-spacing: -0.01em; }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
p { font-size: var(--text-base); margin-bottom: 1rem; }

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

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem; /* Mobile padding */
}

@media (min-width: 768px) {
    .container { padding: 0 2rem; }
}

.section {
    padding: var(--spacing-lg) 0;
    position: relative;
    overflow: hidden;
}

@media (min-width: 992px) {
    .section { padding: var(--spacing-xl) 0; }
}

.text-center { text-align: center; }
.text-white { color: var(--color-white); }
.text-navy { color: var(--color-primary-navy); }
.text-blue { color: var(--color-accent-blue); }
.text-gray { color: var(--color-secondary-gray); }

.bg-white { background-color: var(--color-white); }
.bg-light { background-color: var(--color-background-light); }
.bg-navy { 
    background: var(--color-primary-navy); 
    background-image: var(--gradient-mesh);
    color: var(--color-white); 
}

/* Modern Buttons (Touch Friendly) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem; /* Larger touch target */
    border-radius: var(--radius-full);
    font-weight: 600;
    border: 2px solid transparent;
    transition: var(--transition-standard);
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
    gap: 0.5rem;
    min-height: 48px; /* Min touch size */
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: scale(0.98); /* Tactile feedback */
}

.btn-primary:hover {
    box-shadow: 0 0 20px var(--color-accent-blue-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-white);
}

.btn-outline-navy {
    color: var(--color-primary-navy);
    border: 2px solid var(--color-primary-navy);
}

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

/* Glass Cards */
.card-modern {
    background: var(--gradient-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: var(--glass-border);
    backdrop-filter: var(--glass-blur);
    transition: var(--transition-standard);
    height: 100%;
    transform-style: preserve-3d; /* For 3D Tilt */
}

/* Horizontal Scroll Snap (Mobile) */
.scroll-snap-container {
    display: flex;
    overflow-x: auto;
    gap: 1.5rem;
    padding: 1rem 0.5rem 2rem 0.5rem; /* Padding for shadow */
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    margin: 0 -1.5rem; /* Bleed to edge */
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.scroll-snap-container > * {
    flex: 0 0 85%; /* Show part of next card */
    scroll-snap-align: center;
    min-width: 280px;
}

@media (min-width: 768px) {
    .scroll-snap-container {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        overflow-x: visible;
        margin: 0;
        padding: 0;
    }
    .scroll-snap-container > * {
        flex: auto;
        min-width: auto;
    }
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-standard);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary-navy);
    font-family: var(--font-heading);
}

/* Full Screen Mobile Menu */
.nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateX(100%); /* Hidden by default */
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
}

.nav-links.active {
    transform: translateX(0);
}

.nav-links li {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

/* Stagger animation for menu items */
.nav-links.active li:nth-child(1) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.nav-links.active li:nth-child(2) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.nav-links.active li:nth-child(3) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.nav-links.active li:nth-child(4) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.nav-links.active li:nth-child(5) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.nav-links.active li:nth-child(6) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }

.nav-links a {
    font-size: 2rem; /* Large touch targets */
    font-weight: 600;
    color: var(--color-primary-navy);
}

@media (min-width: 992px) {
    .nav-links {
        position: static;
        height: auto;
        background: transparent;
        flex-direction: row;
        transform: none;
        gap: 2rem;
        backdrop-filter: none;
    }
    .nav-links li { opacity: 1; transform: none; }
    .nav-links a { font-size: 1rem; }
    .mobile-menu-btn { display: none; }
}

.mobile-menu-btn {
    font-size: 1.5rem;
    border: none;
    background: none;
    color: var(--color-primary-navy);
    z-index: 1001; /* Above menu */
    cursor: pointer;
    padding: 0.5rem;
}

/* FAB */
.fab-call {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 64px;
    height: 64px;
    background: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(47, 133, 90, 0.4);
    z-index: 2000;
    font-size: 1.75rem;
    animation: pulse 2s infinite;
    border: 2px solid white;
}

/* Section Divider */
.divider-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
    transform: rotate(180deg);
}

.divider-wave svg {
    width: calc(100% + 1.3px);
    height: 40px;
}

@media (min-width: 768px) {
    .divider-wave svg { height: 80px; }
}

.divider-wave .shape-fill { fill: var(--color-background-light); }

/* Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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