:root {
    /* Brand Colors */
    --primary: #0077B6;
    /* Deep Ocean Blue */
    --primary-light: #E6F2F5;
    /* Ice Blue */
    --primary-dark: #023E8A;
    /* Navy */

    --accent: #FF9F1C;
    /* Vibrant Amber */
    --accent-hover: #F48C06;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Utility Colors */
    --bg-dark: #001219;
    /* Almost Black */
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;

    /* Glassmorphism */
    --glass-bg: rgba(0, 18, 25, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: #FFFFFF;
    line-height: 1.2;
}

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

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Glass UI Elements */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
}

header.scrolled {
    background: rgba(0, 18, 25, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 15px 0;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

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

/* Logo */
header img {
    height: 48px;
    width: auto;
    transition: var(--transition);
}

header.scrolled img {
    height: 40px;
}

/* Navigation */
.nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 800;
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(255, 159, 28, 0.39);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 159, 28, 0.23);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 2px solid var(--glass-border);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 159, 28, 0.05);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 2000;
}

/* Sticky Mobile Banner */
.mobile-call-banner {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--accent);
    color: #fff;
    text-align: center;
    padding: 16px;
    font-weight: 800;
    font-family: var(--font-heading);
    text-decoration: none;
    z-index: 1000;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
}

/* 3D Hover Cards */
.card-3d {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: translateY(-10px) rotateX(2deg) rotateY(2deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Typography Helpers */
.text-accent {
    color: var(--accent);
}

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

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

.font-heading {
    font-family: var(--font-heading);
}

/* Layout Grid */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(0, 18, 25, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        transition: right 0.4s ease;
        border-left: 1px solid var(--glass-border);
    }

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

    .mobile-nav-toggle {
        display: block;
    }

    .header-container>.btn-primary {
        display: none;
    }

    .mobile-call-banner {
        display: block;
    }

    body {
        padding-bottom: 60px;
        /* Space for mobile banner */
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2.5rem !important;
    }

    h2 {
        font-size: 2rem !important;
    }
}

/* Structure Helpers */
.section-padding {
    padding: 100px 0;
}

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

/* FAQ Accordion */
details {
    margin-bottom: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
}

summary {
    padding: 20px;
    font-family: var(--font-heading);
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    list-style: none;
    /* Hide default arrow */
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

summary::-webkit-details-marker {
    display: none;
}

summary::after {
    content: '\f067';
    /* FontAwesome plus */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--accent);
    transition: transform 0.3s ease;
}

details[open] summary::after {
    transform: rotate(45deg);
    /* Turns plus into an X */
}

details p {
    padding: 0 20px 20px 20px;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 10px;
    padding-top: 20px;
}