:root {
    --primary: #1A237E;
    /* Deep Navy */
    --action: #00BFA5;
    /* Vibrant Teal */
    --text: #2C3E50;
    --text-muted: #7F8C8D;
    --bg: #F8F9FA;
    --white: #FFFFFF;
    --glass: rgba(255, 255, 255, 0.85);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    line-height: 1.1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Nav */
header {
    background: var(--glass);
    backdrop-filter: blur(15px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    margin-left: 30px;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.btn {
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 800;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--action);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 191, 165, 0.3);
}

/* Service Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    perspective: 1000px;
}

.service-card:hover {
    transform: translateY(-10px) rotateX(5deg) rotateY(2deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Sticky Mobile Banner */
.mobile-call-banner {
    display: none;
}

@media (max-width: 768px) {
    .mobile-call-banner {
        display: block;
        position: fixed;
        bottom: 0;
        width: 100%;
        background: var(--action);
        color: var(--white);
        text-align: center;
        padding: 15px;
        font-weight: 900;
        z-index: 2000;
        text-decoration: none;
        letter-spacing: 1px;
    }
}

/* Authority Sidebar */
.authority-sidebar {
    background: var(--primary);
    color: var(--white);
    padding: 30px;
    border-radius: 15px;
}

/* FAQ Accordion */
details {
    margin-bottom: 15px;
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

summary {
    font-weight: 800;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
}

summary::after {
    content: '+';
    color: var(--action);
}

/* Footer Hooks */
footer {
    background: #101820;
    color: var(--white);
    padding: 80px 0 40px 0;
}