body {
        margin: 0;
        font-family: Arial, sans-serif;
        background-color: #0f1c2e;
        color: #fff;
    }
    /* Navigation */
    nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 2rem;
        background-color: #152236;
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    nav .logo {
        font-weight: bold;
        font-size: 1.5rem;
        color: orange;
    }
    nav ul {
        list-style: none;
        display: flex;
        gap: 2rem;
        margin: 0;
        padding: 0;
    }
    nav ul li {
        cursor: pointer;
    }
    nav ul li a {
        text-decoration: none;
        color: #fff;
        font-weight: 500;
    }
    nav .cta {
        background-color: orange;
        color: #fff;
        padding: 0.5rem 1rem;
        border-radius: 5px;
        text-decoration: none;
        font-weight: bold;
    }
    /* Hero Section */
    .hero {
        position: relative;
        text-align: left;
        padding: 5rem 2rem;
        background: url('img/hero.jpg') no-repeat center center/cover;
    }
    .hero::before {
        content: "";
        position: absolute;
        top: 0; left: 0;
        width: 100%; height: 100%;
        background: rgba(15, 28, 46, 0.7);
        z-index: 0;
    }
    .hero-content {
        position: relative;
        z-index: 1;
        max-width: 700px;
    }
    .hero h1 {
        font-size: 3rem;
        margin: 0 0 1rem;
    }
    .hero h1 span {
        color: orange;
    }
    .hero p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }
    .subjects {
        display: flex;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    .subjects button {
        background: rgba(255,255,255,0.1);
        border: none;
        padding: 0.5rem 1rem;
        border-radius: 5px;
        color: #fff;
        cursor: pointer;
    }
    .hero-buttons button {
        padding: 0.75rem 1.5rem;
        border: none;
        border-radius: 5px;
        font-weight: bold;
        cursor: pointer;
        margin-right: 1rem;
    }
    .hero-buttons .get-started {
        background: orange;
        color: #fff;
    }
    .hero-buttons .view-packages {
        background: transparent;
        border: 2px solid #fff;
        color: #fff;
    }
    @media (max-width: 768px) {
        .hero h1 { font-size: 2rem; }
        nav ul { flex-direction: column; gap: 1rem; }
    }

/* Subjects Section */
.subjects-section {
    padding: 5rem 2rem;
    background-color: #f9fafd;
    color: #0f1c2e;
    text-align: center;
}

.subjects-section .section-subtitle {
    color: orange;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.subjects-section .section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subjects-section .section-description {
    font-size: 1rem;
    color: #555;
    margin-bottom: 3rem;
}

/* GRID UPDATE */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 per row on large screens */
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Tablet: 2 per row */
@media (max-width: 992px) {
    .subjects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile: 1 per row */
@media (max-width: 576px) {
    .subjects-grid {
        grid-template-columns: 1fr;
    }
}

.subject-card {
    background-color: #fff;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: left;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.subject-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.subject-card .icon {
    font-size: 2rem;
    background-color: #152236;
    color: #fff;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.subject-card h3 {
    margin: 0 0 0.5rem 0;
}

.subject-card p {
    font-size: 0.95rem;
    color: #555;
}


/* =========================
   Scope Section
========================= */

.scope-section {
    position: relative;
    padding: 6rem 2rem;
    background-image: url('img/hero.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* PARALLAX EFFECT */
    overflow: hidden;
}

/* Overlay */
.scope-overlay {
    position: absolute;
    inset: 0;
    background: rgba(21, 34, 54, 0.9); /* #152236 overlay */
    z-index: 1;
}

/* Content */
.scope-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
}

/* Subtitle */
.scope-subtitle {
    color: orange;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

/* Title */
.scope-title {
    font-size: 2.7rem;
    margin-bottom: 1rem;
}

/* Description */
.scope-description {
    max-width: 700px;
    margin: 0 auto 3rem;
    color: #d7dbe2;
    font-size: 1rem;
    line-height: 1.7;
}

/* Grid */
.scope-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Tablet */
@media (max-width: 992px) {
    .scope-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 576px) {
    .scope-grid {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.scope-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: left;
    transition: all 0.3s ease;
}

.scope-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.12);
}

/* Icons */
.scope-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: #fff;
    color: #152236;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

/* Headings */
.scope-card h3 {
    margin-bottom: 0.7rem;
    font-size: 1.3rem;
    color: #fff;
}

/* Paragraphs */
.scope-card p {
    color: #d7dbe2;
    line-height: 1.6;
    font-size: 0.95rem;
}


/* Packages Section */
.packages-section {
    padding: 5rem 2rem;
    background-color: #f9fafd;
    color: #0f1c2e;
    text-align: center;
}
.packages-section .section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}
.packages-section .section-description {
    font-size: 1rem;
    color: #555;
    margin-bottom: 3rem;
}
.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.package-card {
    background-color: #fff;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}
.package-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}
.package-card h3 {
    margin-bottom: 0.5rem;
}
.package-card .sessions {
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.package-card .price {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}
.package-card .price span {
    color: orange;
}
.package-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
    text-align: left;
}
.package-card ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}
.package-card ul li::before {
    content: '✓';
    color: orange;
    position: absolute;
    left: 0;
}
.get-started-btn {
    padding: 0.75rem 1.5rem;
    background-color: #152236;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}
.package-card.popular {
    border: 2px solid orange;
}
.package-card.popular .badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: orange;
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: bold;
}
@media (max-width: 768px) {
    .packages-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================
   Registration Section
========================= */

.register-section {
    padding: 6rem 2rem;
    background-color: #f9fafd;
    color: #0f1c2e;
    text-align: center;
}

.register-section .section-subtitle {
    color: orange;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.register-section .section-title {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
}

.register-section .section-description {
    font-size: 1rem;
    color: #555;
    margin-bottom: 3rem;
}

/* =========================
   Form Layout
========================= */

.register-form {
    max-width: 1000px;
    margin: 0 auto;
    background-color: #fff;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 4px 25px rgba(0,0,0,0.06);

    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Full Width Items */
.full-width {
    grid-column: span 2;
}

/* Form Group */
.form-group {
    text-align: left;
}

/* Labels */
.register-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.7rem;
    color: #152236;
}

/* Inputs */
.register-form input,
.register-form select {
    width: 100%;
    padding: 0.95rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 1rem;
    transition: 0.3s ease;
    background: #fff;
}

/* Focus */
.register-form input:focus,
.register-form select:focus {
    outline: none;
    border-color: orange;
    box-shadow: 0 0 0 3px rgba(255,165,0,0.15);
}

/* =========================
   Session Selector
========================= */

.session-label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

/* Session Card */
.session-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fff;
}

/* Hide Checkbox */
.session-card input {
    display: none;
}

/* Hover */
.session-card:hover {
    border-color: orange;
    transform: translateY(-3px);
}

/* Checked */
.session-card input:checked + .checkmark {
    background: orange;
    border-color: orange;
}

.session-card input:checked + .checkmark::after {
    opacity: 1;
}

/* Active State */
.session-card:has(input:checked) {
    border-color: orange;
    background: rgba(255, 165, 0, 0.08);
}

/* Checkmark */
.checkmark {
    width: 22px;
    height: 22px;
    border: 2px solid #ccc;
    border-radius: 6px;
    position: relative;
    flex-shrink: 0;
    margin-top: 3px;
    transition: 0.3s;
}

.checkmark::after {
    content: "✓";
    position: absolute;
    color: white;
    font-size: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

/* Text */
.session-content h4 {
    margin: 0 0 0.3rem;
    font-size: 1rem;
    color: #152236;
}

.session-content p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

/* Special Cards */
.select-all-card {
    border-color: #152236;
    background: rgba(21, 34, 54, 0.05);
}

.private-card {
    border-color: #d1d5db;
}

/* =========================
   Button
========================= */

.register-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(
        90deg,
        #ff7f0f,
        #ffb347
    );

    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.register-btn:hover {
    transform: translateY(-2px);
    opacity: 0.95;
}

/* =========================
   Responsive
========================= */

@media (max-width: 768px) {

    .register-form {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .full-width {
        grid-column: span 1;
    }

    .session-options {
        grid-template-columns: 1fr;
    }

    .register-section .section-title {
        font-size: 2.2rem;
    }
}

/* Footer Section */
.site-footer {
    background-color: #152236;
    color: #fff;
    padding: 2rem 1rem;
    text-align: center;
    font-size: 0.9rem;
}
.site-footer .sponsor {
    color: orange;
    font-weight: bold;
}
.site-footer a {
    color: inherit;
    text-decoration: none;
}
.site-footer a:hover {
    text-decoration: underline;
}