/* Tech-Rehab - Premium Dark Futuristic Theme 2026 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #000000;
    color: #E0E0E0;
}

a { text-decoration: none; color: inherit; }

:root {
    --purple: #6A1B9A;
    --green: #2E7D32;
    --light-green: #A5D6A7;
    --dark-purple: #4A148C;
}

h1, h2, h3 {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

/* Header */
header {
    background-color: var(--purple);
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.logo-link {
    display: block;
    filter: drop-shadow(0 0 15px var(--green));
    transition: filter 0.4s ease;
}

.logo-link:hover {
    filter: drop-shadow(0 0 30px var(--green));
}

.logo-img {
    height: auto;
    width: 70%;
    max-width: 650px;
    object-fit: contain;
}

/* Navigation - clean, centered, glow underline */
nav {
    margin-top: 25px;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 35px;
}

nav ul li a {
    color: var(--light-green);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.15rem;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 50%;
    background-color: var(--light-green);
    transition: width 0.4s ease, left 0.4s ease;
    box-shadow: 0 0 10px var(--green);
}

nav ul li a:hover {
    color: white;
}

nav ul li a:hover::after {
    width: 100%;
    left: 0;
}

/* Floating Call & WhatsApp Buttons */
.floating-buttons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.floating-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 6px 25px rgba(0,0,0,0.6);
}

.call-btn { background-color: var(--green); }
.whatsapp-btn { background-color: #25D366; }

.floating-btn img { width: 32px; height: 32px; }

/* Hero */
.hero {
    background-image: url('https://png.pngtree.com/thumb_back/fh260/background/20251207/pngtree-neon-circuit-lines-in-blue-green-and-purple-across-black-background-image_20456387.webp');
    background-size: cover;
    background-position: center;
    min-height: 600px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 40px 20px;
    color: white;
}

.hero-content {
    background-color: rgba(0,0,0,0.8);
    padding: 40px;
    border-radius: 10px;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 { font-size: 48px; margin-bottom: 20px; color: var(--light-green); text-shadow: 0 0 15px var(--green); }
.hero p { font-size: 22px; margin-bottom: 30px; }

.cta-button {
    background-color: var(--green);
    color: white;
    padding: 18px 35px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 20px;
    transition: background 0.3s;
}

.cta-button:hover { background-color: #1B5E20; }

/* Sections */
#what-we-do, #services, #pricing, #about, #contact {
    padding: 100px 20px;
    background-color: #111111;
    text-align: center;
}

h2 {
    color: var(--light-green);
    font-size: 40px;
    margin-bottom: 50px;
    text-shadow: 0 0 10px var(--green);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background-color: rgba(46,125,50,0.15);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--green);
    box-shadow: 0 0 20px rgba(46,125,50,0.3);
}

.pricing-card h3 {
    color: var(--light-green);
    margin-bottom: 20px;
    font-size: 28px;
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
    line-height: 2.2;
    font-size: 17px;
}

/* About & Contact */
#about p, #contact p {
    font-size: 18px;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto 30px;
}

/* Footer */
footer {
    background-color: var(--purple);
    color: white;
    text-align: center;
    padding: 40px;
    font-size: 15px;
}