/* Global Variables */
:root {
    --primary: #0A2540; /* Deep blue for trust */
    --secondary: #4777F5; /* Vibrant blue for tech vibe */
    --aqua: #00FFFF; /* Aqua for brand highlight */
    --aqua-muted: #00B7B7; /* Muted aqua for better readability */
    --light: #F7FAFF; /* Light contrast */
    --dark: #1D1D27; /* Dark accent */
    --shadow: rgba(0, 0, 0, 0.2); /* Subtle shadow */
    --border-radius: 8px; /* Standardized border radius */
    --transition: all 0.3s ease; /* Standardized transition */
    --font-primary: 'Roboto', sans-serif; /* Primary font */
    --font-secondary: 'Heebo', sans-serif; /* Secondary font */
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --light: #2C3E50; /* Darker light for dark mode */
        --shadow: rgba(255, 255, 255, 0.1); /* Lighter shadow for dark mode */
    }
}

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

body {
    font-family: var(--font-secondary);
    color: var(--dark);
    background: var(--light);
    line-height: 1.6;
    font-size: clamp(16px, 2.5vw, 18px); /* Fluid typography */
}

/* Scoped Navbar Styles */
.navbar-sticky {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 4px 12px var(--shadow);
    padding: clamp(0.5rem, 2vw, 0.75rem) clamp(1rem, 3vw, 1.5rem);
    transition: var(--transition);
}

.navbar-sticky .navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.3s ease;
}

.navbar-sticky .navbar-brand:hover,
.navbar-sticky .navbar-brand:focus {
    transform: scale(1.05);
}

.navbar-sticky .navbar-brand img {
    width: clamp(40px, 5vw, 60px);
    transition: transform 0.3s ease;
}

.navbar-sticky .navbar-brand img:hover,
.navbar-sticky .navbar-brand img:focus {
    transform: rotate(10deg);
}

.navbar-sticky .navbar-brand h1 {
    margin: 0;
    font-family: var(--font-primary);
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 1px;
    text-transform: uppercase;
    overflow: hidden;
    white-space: nowrap;
    animation: typing 3s steps(9, end) infinite;
}

.navbar-sticky .navbar-brand h1 .text-white {
    color: #FFFFFF;
    font-weight: 800;
}

.navbar-sticky .navbar-brand h1 .text-aqua {
    color: var(--aqua-muted);
    font-weight: 600;
}

@keyframes typing {
    0% { width: 0; }
    50% { width: 100%; }
    100% { width: 0; }
}

@keyframes blink-caret {
    from, to { border-right-color: transparent; }
    50% { border-right: 2px solid var(--aqua-muted); }
}

.navbar-sticky .navbar-brand h1::after {
    content: '';
    display: inline-block;
    width: 2px;
    height: 1.2em;
    vertical-align: middle;
    background: var(--aqua-muted);
    animation: blink-caret 0.75s step-end infinite;
}

.navbar-sticky .navbar-nav .nav-link {
    color: var(--light);
    margin: 0 clamp(0.8rem, 2vw, 1.2rem);
    padding: 0.6rem 1rem;
    font-family: var(--font-secondary);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    font-weight: 500;
    text-transform: uppercase;
    transition: var(--transition);
}

.navbar-sticky .navbar-nav .nav-link:hover,
.navbar-sticky .navbar-nav .nav-link:focus,
.navbar-sticky .navbar-nav .nav-link.active {
    color: var(--aqua);
    transform: translateY(-2px);
}

.navbar-sticky .navbar-nav .dropdown-menu {
    background: var(--primary);
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 6px 12px var(--shadow);
    margin-top: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.navbar-sticky .nav-item.dropdown:hover .dropdown-menu,
.navbar-sticky .dropdown.show .dropdown-menu {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar-sticky .navbar-nav .dropdown-menu .dropdown-item {
    color: var(--light);
    padding: 0.6rem 1.5rem;
    font-family: var(--font-secondary);
    font-size: clamp(0.9rem, 2vw, 1rem);
    transition: var(--transition);
}

.navbar-sticky .navbar-nav .dropdown-menu .dropdown-item:hover,
.navbar-sticky .navbar-nav .dropdown-menu .dropdown-item:focus,
.navbar-sticky .navbar-nav .dropdown-menu .dropdown-item.active {
    background: var(--secondary);
    color: var(--light);
}

.navbar-sticky .navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-sticky .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5em;
    height: 1.5em;
}

.navbar-sticky .btn-outline-light {
    color: var(--light);
    border-color: var(--aqua);
    font-family: var(--font-secondary);
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    transition: var(--transition);
}

.navbar-sticky .btn-outline-light:hover,
.navbar-sticky .btn-outline-light:focus {
    color: var(--primary);
    background-color: var(--aqua);
    transform: scale(1.05);
}

.navbar-sticky .dropdown-toggle::after {
    border: none;
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    vertical-align: middle;
    margin-left: 0.5rem;
    color: var(--light);
    transition: transform 0.3s ease;
}

.navbar-sticky .dropdown.show .dropdown-toggle::after {
    transform: rotate(180deg);
}

.navbar-sticky .nav-item.dropdown .fas.fa-user {
    margin-right: 0.5rem;
}

/* Scoped Hero Section Styles */
.hero-header {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(71, 119, 245, 0.1));
    border-radius: var(--border-radius);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    margin: clamp(1.5rem, 3vw, 2.5rem) auto;
    max-width: min(1400px, 95vw);
    box-shadow: 0 6px 16px var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.hero-header:hover {
    transform: scale(1.01);
}

.hero-header .carousel-item {
    position: relative;
}

.hero-header .carousel-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
    border-radius: var(--border-radius);
}

.hero-header .carousel-item img {
    border-radius: var(--border-radius);
    object-fit: cover;
    max-height: clamp(300px, 50vw, 500px);
    box-shadow: 0 4px 8px var(--shadow);
    z-index: 0;
    transition: var(--transition);
}

.hero-header .carousel-item img:hover,
.hero-header .carousel-item img:focus {
    transform: scale(1.02);
}

.hero-header .text-primary {
    color: var(--primary);
    font-family: var(--font-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    transition: var(--transition);
}

.hero-header h1:hover,
.hero-header h1:focus {
    color: var(--aqua);
}

.hero-header p.lead {
    font-family: var(--font-secondary);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.hero-header .carousel-reg-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
    margin-left: 10px;
}

.hero-feature-item {
    flex: 1 1 calc(50% - 0.5rem);
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border-radius: 6px;
    font-family: var(--font-secondary);
    font-size: clamp(0.9rem, 2vw, 1rem);
    font-weight: 400;
    text-align: left;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--dark);
    transition: var(--transition);
    position: relative;
}

.hero-feature-item:hover,
.hero-feature-item:focus {
    transform: translateY(-3px);
}

.hero-feature-item:nth-child(1) {
    background: rgba(44, 62, 80, 0.2);
}

.hero-feature-item:nth-child(2) {
    background: rgba(52, 152, 219, 0.2);
}

.hero-feature-item:nth-child(3) {
    background: rgba(39, 174, 96, 0.2);
}

.hero-feature-item:nth-child(4) {
    background: rgba(0, 183, 183, 0.2);
}

.hero-feature-item::before {
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary);
    font-size: 1.2rem;
}

.hero-feature-item:nth-child(1)::before {
    content: '\f4c4'; /* Handshake */
}

.hero-feature-item:nth-child(2)::before {
    content: '\f3ed'; /* Shield-alt */
}

.hero-feature-item:nth-child(3)::before {
    content: '\f507'; /* User-check */
}

.hero-feature-item:nth-child(4)::before {
    content: '\f017'; /* Clock */
}

/* Scoped Registration Button Styles */
.hero-header .regB {
    background: var(--secondary);
    color: var(--light);
    border: none;
    border-radius: 25px;
    padding: clamp(0.5rem, 2vw, 0.75rem) clamp(1rem, 3vw, 1.5rem);
    font-family: var(--font-secondary);
    font-weight: 500;
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    text-transform: uppercase;
    transition: var(--transition);
}

.hero-header .regB:hover,
.hero-header .regB:focus,
.hero-header .regB:active {
    background: var(--aqua);
    color: var(--light);
    box-shadow: 0 4px 8px var(--shadow);
    transform: scale(1.05);
}

/* About Section */
.py-5 {
    background: var(--light);
    padding: clamp(2rem, 5vw, 3rem) 0;
}

.section-title {
    margin-bottom: 2rem;
}

.section-title h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    position: relative;
    display: inline-block;
    padding-left: 1.5rem;
}

.section-title h6::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 1rem;
    height: 3px;
    background: var(--aqua);
}

.section-title h2 {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    font-size: clamp(1.8rem, 3vw, 2rem);
}

.scroll-notice .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.scroll-notice .card:hover,
.scroll-notice .card:focus {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px var(--shadow);
}

.scroll-notice .card-title {
    font-family: var(--font-secondary);
    font-weight: 500;
    color: var(--primary);
}

.scroll-notice .card-text {
    font-family: var(--font-secondary);
    color: var(--dark);
}

/* Services Section */
.service-item {
    background: var(--light);
    border-radius: var(--border-radius);
    padding: clamp(1rem, 2vw, 1.5rem);
    box-shadow: 0 4px 8px var(--shadow);
    transition: var(--transition);
}

.service-item:hover,
.service-item:focus {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px var(--shadow);
}

.service-item .service-icon {
    background: var(--secondary);
    color: var(--light);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition);
}

.service-item:hover .service-icon,
.service-item:focus .service-icon {
    background: var(--aqua-muted);
}

.service-item h5 {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
}

.service-item p {
    font-family: var(--font-secondary);
    color: var(--dark);
}

.service-item .btn {
    background: var(--secondary);
    color: var(--light);
    border-radius: 25px;
    padding: 0.5rem 1.5rem;
    font-family: var(--font-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.service-item .btn:hover,
.service-item .btn:focus {
    background: var(--primary);
    color: var(--light);
    transform: scale(1.05);
}

/* FAQs Section */
.faq-item h5 {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.faq-item p {
    font-family: var(--font-secondary);
    color: var(--dark);
}

.faq-item .fa-question-circle {
    color: var(--secondary);
    transition: var(--transition);
}

.faq-item:hover .fa-question-circle,
.faq-item:focus .fa-question-circle {
    color: var(--aqua-muted);
}

/* Back to Top Button */
.back-to-top {
    background: var(--secondary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.back-to-top:hover,
.back-to-top:focus {
    background: var(--aqua);
    transform: scale(1.1);
}

.back-to-top i {
    color: var(--light);
    font-size: 1.5rem;
}

/* Modals */
.modal-content {
    border-radius: var(--border-radius);
    box-shadow: 0 6px 16px var(--shadow);
}

.modal-header {
    background: var(--primary);
    color: var(--light);
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

.modal-header .modal-title {
    font-family: var(--font-primary);
    font-weight: 600;
    text-transform: uppercase;
}

.modal-header .btn-close {
    background: transparent;
    opacity: 0.8;
    transition: var(--transition);
}

.modal-header .btn-close:hover,
.modal-header .btn-close:focus {
    opacity: 1;
}

.modal-body {
    font-family: var(--font-secondary);
    color: var(--dark);
}

/* Scoped Footer Styles */
.footer {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFFFFF;
    padding: clamp(2rem, 5vw, 3rem) 0;
}

.footer .footer-logo img {
    width: clamp(120px, 10vw, 150px);
    transition: var(--transition);
}

.footer .footer-logo img:hover,
.footer .footer-logo img:focus {
    transform: scale(1.05);
}

.footer .footer-section h5 {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--aqua);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.footer .footer-section p,
.footer .footer-section a {
    font-family: var(--font-secondary);
    color: #FFFFFF;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    text-decoration: none;
    transition: var(--transition);
}

.footer .footer-section a:hover,
.footer .footer-section a:focus {
    color: var(--aqua-muted);
}

.footer .footer-social .btn-social {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--aqua);
    color: #FFFFFF;
    background: transparent;
    transition: var(--transition);
}

.footer .footer-social .btn-social:hover,
.footer .footer-social .btn-social:focus {
    background: var(--aqua);
    color: var(--primary);
    transform: scale(1.1);
}

.footer .footer-bottom {
    border-top: 1px solid var(--aqua);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

.footer .footer-bottom p {
    margin: 0;
    font-family: var(--font-secondary);
    color: #FFFFFF;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Scoped Media Queries */
@media (max-width: 1200px) {
    .hero-header {
        max-width: 90%;
        padding: clamp(1rem, 2vw, 1.5rem);
    }
    .hero-header h1 {
        font-size: clamp(1.8rem, 4vw, 2.5rem);
    }
    .hero-header .carousel-item img {
        max-height: 400px;
    }
}

@media (max-width: 991.98px) {
    .navbar-sticky .navbar-collapse {
        background: var(--primary);
        padding: 1rem;
    }
    .navbar-sticky .navbar-nav {
        flex-direction: column;
    }
    .navbar-sticky .navbar-nav .nav-link {
        margin: 0.5rem 0;
        font-size: clamp(0.8rem, 2vw, 1rem);
    }
    .navbar-sticky .navbar-nav .dropdown-menu {
        background: var(--primary);
        display: none;
        border-radius: 4px;
        box-shadow: none;
    }
    .navbar-sticky .nav-item.dropdown:hover .dropdown-menu {
        display: none;
    }
    .navbar-sticky .dropdown.show .dropdown-menu {
        display: block;
    }
    .navbar-sticky .navbar-brand img {
        width: 50px;
    }
    .navbar-sticky .navbar-brand h1 {
        font-size: clamp(1.2rem, 3vw, 1.5rem);
    }
    .hero-features {
        flex-direction: column;
    }
    .hero-feature-item {
        flex: 1 1 100%;
    }
}

@media (max-width: 767.98px) {
    .hero-header {
        max-width: 100%;
        padding: clamp(0.75rem, 2vw, 1rem);
        margin: clamp(0.5rem, 2vw, 1rem) 0.5rem;
    }
    .hero-header h1 {
        font-size: clamp(1.5rem, 3.5vw, 2rem);
    }
    .hero-header p.lead {
        font-size: clamp(0.9rem, 2vw, 1rem);
    }
    .hero-header .carousel-item img {
        max-height: 300px;
    }
    .scroll-notice {
        height: 250px;
    }
    .footer .footer-section {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .hero-header {
        padding: 0.75rem;
        margin: 0.5rem;
    }
    .hero-header h1 {
        font-size: clamp(1.4rem, 3vw, 1.8rem);
    }
    .hero-header .regB {
        padding: 0.5rem 1rem;
        font-size: clamp(0.8rem, 2vw, 1rem);
    }
    .service-item {
        padding: 0.75rem;
    }
    .service-item .service-icon {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 320px) {
    .navbar-sticky .navbar-brand img {
        width: 40px;
    }
    .navbar-sticky .navbar-brand h1 {
        font-size: 1.2rem;
    }
    .hero-header h1 {
        font-size: 1.4rem;
    }
    .hero-header .carousel-item img {
        max-height: 250px;
    }
}

@media (min-width: 1920px) {
    .hero-header {
        max-width: 1600px;
    }
    .hero-header h1 {
        font-size: 3.5rem;
    }
    .hero-header .carousel-item img {
        max-height: 600px;
    }
}