:root {
    --color-primary-dark: #0A192F; /* Deep Navy Blue */
    --color-accent-teal: #64FFDA; /* Bright Teal */
    --color-text-light: #CCD6F6; /* Off-white for main text */
    --color-text-secondary: #8892B0; /* Light Slate Gray */
    --color-background-dark: #071221; /* Even darker background */
    --color-card-background: #112240; /* Slightly lighter than primary-dark for cards */
    --color-shadow-light: rgba(100, 255, 218, 0.15); /* Teal-ish shadow */
    --color-shadow-dark: rgba(0, 0, 0, 0.3);

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --transition-speed: 0.3s ease-in-out;
    --border-radius-large: 10px;
    --border-radius-small: 5px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-text-secondary);
    background-color: var(--color-background-dark);
    overflow-x: hidden; /* Prevent horizontal scroll from animations */
}

a {
    color: var(--color-accent-teal);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    color: #92ffe7; /* Lighter teal on hover */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-light);
    margin-bottom: 0.8em;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.8rem; }
h3 { font-size: 1.8rem; }
p { margin-bottom: 1em; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden; /* Ensures scroll-fade-in elements stay within bounds */
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 0.5em;
    color: var(--color-text-light);
    animation: textFadeIn 1s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
    animation-delay: 0.2s;
    opacity: 1;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--color-accent-teal), #4d8df1);
    border-radius: 2px;
}

.text-light { color: var(--color-text-light) !important; }

/* Header & Navigation */
.main-header {
    background-color: transparent;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

.main-header.scrolled {
    background-color: rgba(10, 25, 47, 0.95); /* Slightly less opaque */
    box-shadow: 0 4px 15px var(--color-shadow-dark);
    backdrop-filter: blur(5px);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--color-accent-teal);
    letter-spacing: 1px;
    transition: color var(--transition-speed), transform var(--transition-speed);
}

.logo:hover {
    color: #92ffe7;
    transform: scale(1.05);
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 2.5rem;
}

.nav-links a {
    color: var(--color-text-light);
    font-weight: 600;
    font-size: 1.05rem;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-speed), transform var(--transition-speed);
}

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

.nav-links a:hover {
    color: var(--color-accent-teal);
    transform: translateY(-2px);
}

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

/* Hamburger menu for mobile */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--color-accent-teal);
    margin: 4px 0;
    transition: all var(--transition-speed);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-background-dark) 100%),
                url('images/image_2.jpg') no-repeat center center/cover;
    background-attachment: fixed; /* Parallax effect */
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 2rem; /* Ensure content isn't flush with edges */
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Dark overlay for text readability */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    color: var(--color-text-light);
}

.hero-content h1 {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 0.5em;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    background: -webkit-linear-gradient(45deg, var(--color-accent-teal), #4d8df1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-light);
    opacity: 1;.9;
    max-width: 700px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    background-color: var(--color-background-dark);
    padding: 8rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    padding-right: 2rem;
}

.about-text h2 {
    text-align: left;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-large);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    transition: transform 0.5s ease;
}

.about-image img:hover {
    transform: scale(1.02);
}

/* Services Section */
.services-section {
    background: linear-gradient(145deg, var(--color-primary-dark) 0%, var(--color-card-background) 100%);
    padding: 8rem 0;
}

.bg-gradient {
    background: linear-gradient(135deg, #1A2E4E, #0F2027);
    color: var(--color-text-light);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.service-card, .why-card {
    background-color: var(--color-card-background);
    border-radius: var(--border-radius-large);
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 8px 25px var(--color-shadow-dark);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(100, 255, 218, 0.1);
}

.service-card::before, .why-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(100, 255, 218, 0.05) 0%, transparent 70%);
    opacity: 1;
    transition: opacity 0.4s ease, transform 0.4s ease;
    z-index: 0;
    transform: scale(0);
}

.service-card:hover::before, .why-card:hover::before {
    opacity: 1;
    transform: scale(1);
}

.service-card:hover, .why-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--color-shadow-light);
    border-color: var(--color-accent-teal);
}

.icon-wrapper {
    font-size: 3.5rem;
    color: var(--color-accent-teal);
    margin-bottom: 1rem;
    display: inline-block;
    background: rgba(100, 255, 218, 0.1);
    padding: 0.8rem 1rem;
    border-radius: var(--border-radius-large);
    box-shadow: inset 0 0 15px rgba(100, 255, 218, 0.2);
    transition: background var(--transition-speed), color var(--transition-speed);
}

.service-card:hover .icon-wrapper {
    background: var(--color-accent-teal);
    color: var(--color-primary-dark);
    transform: rotateY(15deg);
}

.service-card h3, .why-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--color-text-light);
}

.service-card p, .why-card p {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

/* Process Section */
.process-section {
    background-color: var(--color-background-dark);
    padding: 8rem 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
    padding-top: 2rem;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 50%; /* Adjust as needed */
    left: 5%;
    right: 5%;
    height: 2px;
    background: linear-gradient(to right, var(--color-accent-teal), #4d8df1);
    z-index: 0;
    transform: translateY(-50%);
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 1.5rem;
    position: relative;
    background-color: var(--color-card-background);
    border-radius: var(--border-radius-large);
    box-shadow: 0 6px 20px var(--color-shadow-dark);
    border: 1px solid rgba(100, 255, 218, 0.1);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    z-index: 1; /* Ensure step is above line */
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px var(--color-shadow-light);
}

.step-icon {
    font-size: 2.5rem;
    color: var(--color-accent-teal);
    margin-bottom: 1rem;
    background: rgba(100, 255, 218, 0.15);
    border-radius: 50%;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
    border: 2px solid var(--color-accent-teal);
    transition: background var(--transition-speed), color var(--transition-speed);
}

.process-step:hover .step-icon {
    background: var(--color-accent-teal);
    color: var(--color-primary-dark);
}

.process-step h3 {
    font-size: 1.4rem;
    color: var(--color-text-light);
    margin-bottom: 0.6rem;
}

.process-step p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

/* Why Us Section */
.why-us-section {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('images/image_3.jpg') no-repeat center center/cover;
    background-attachment: fixed;
    padding: 8rem 0;
}

.bg-dark-texture {
    background: linear-gradient(rgba(0,0,0,0.85), rgba(0,0,0,0.85)), url('images/image_4.jpg') no-repeat center center/cover;
    background-attachment: fixed;
}

.why-card .icon-large {
    font-size: 3.5rem;
    color: var(--color-accent-teal);
    margin-bottom: 1rem;
}

/* Footer */
.main-footer {
    background-color: var(--color-card-background);
    color: var(--color-text-secondary);
    padding: 4rem 0 2rem 0;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(100, 255, 218, 0.08);
}

.footer-brand, .footer-nav, .footer-social {
    flex: 1;
    min-width: 250px;
    margin-bottom: 1rem;
}

.footer-brand .logo {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-nav h3, .footer-social h3 {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    position: relative;
}

.footer-nav ul {
    list-style: none;
}

.footer-nav li {
    margin-bottom: 0.8rem;
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-speed);
}

.footer-nav a:hover {
    color: var(--color-accent-teal);
    transform: translateX(5px);
}

.social-icons {
    display: flex;
    gap: 1.5rem;
    font-size: 1.8rem;
}

.social-icons a {
    color: var(--color-text-secondary);
    transition: color var(--transition-speed), transform var(--transition-speed);
}

.social-icons a:hover {
    color: var(--color-accent-teal);
    transform: translateY(-5px) scale(1.1);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 1;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes textFadeIn {
    from {
        opacity: 1;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 1;
    animation: fadeInUp 1s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}
.fade-in-up.delay-1 { animation-delay: 0.3s; }
.fade-in-up.delay-2 { animation-delay: 0.6s; }

.scroll-fade-in {
    opacity: 1;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-fade-in.delay-0 { transition-delay: 0s; }
.scroll-fade-in.delay-1 { transition-delay: 0.1s; }
.scroll-fade-in.delay-2 { transition-delay: 0.2s; }
.scroll-fade-in.delay-3 { transition-delay: 0.3s; }
.scroll-fade-in.delay-4 { transition-delay: 0.4s; }

.scroll-fade-in.left {
    transform: translateX(-30px);
}
.scroll-fade-in.left.visible {
    transform: translateX(0);
}

.scroll-fade-in.right {
    transform: translateX(30px);
}
.scroll-fade-in.right.visible {
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }

    h1 { font-size: 3rem; }
    h2 { font-size: 2.2rem; }
    h3 { font-size: 1.6rem; }

    .hero-content h1 {
        font-size: 3.5rem;
    }
    .hero-content p {
        font-size: 1.3rem;
    }

    .nav-links {
        margin-left: 1.5rem;
    }
    .nav-links li {
        margin-left: 1.8rem;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .about-text {
        padding-right: 0;
        text-align: center;
    }
    .about-text h2 {
        text-align: center;
    }

    .process-steps {
        flex-wrap: wrap;
        justify-content: center;
        padding-top: 0;
    }
    .process-step {
        flex: none;
        width: 45%; /* Two per row */
        margin-bottom: 2rem;
    }
    .process-steps::before {
        display: none; /* Hide line on smaller screens */
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .footer-brand, .footer-nav, .footer-social {
        min-width: unset;
        width: 100%;
    }
    .footer-nav ul {
        padding: 0;
    }
    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 4rem 0;
    }
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
    .hero-content p {
        font-size: 1.1rem;
    }

    .navbar {
        padding: 0 1rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%; /* Off-screen */
        width: 70%;
        height: 100vh;
        background-color: var(--color-primary-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease-in-out;
        z-index: 999;
        box-shadow: -5px 0 15px var(--color-shadow-dark);
    }

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

    .nav-links li {
        margin: 1.5rem 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(2) {
        opacity: 1;
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .card-grid {
        grid-template-columns: 1fr; /* Single column for mobile */
        gap: 1.5rem;
    }

    .service-card, .why-card {
        padding: 2rem 1.5rem;
    }

    .process-step {
        width: 90%; /* One per row */
    }

    .footer-brand p {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.4rem; }

    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-content p {
        font-size: 0.95rem;
    }

    .section {
        padding: 3rem 0;
    }

    .logo {
        font-size: 1.5rem;
    }

    .about-image img {
        border-radius: var(--border-radius-small);
    }
    .service-card, .why-card {
        border-radius: var(--border-radius-small);
    }
}

/* Safe visibility overrides (auto-added) */
:root, html, body, main, header, footer, section, .container, .content {
  opacity: 1 !important;
  visibility: visible !important;
}