:root {
    --primary: #0f6a8b;
    --primary-dark: #0a4d65;
    --accent: #f4b400;
    --background: #f4f8fb;
    --surface: #ffffff;
    --text: #173042;
    --muted: #64748b;
    --border: #dce7ef;
    --shadow: 0 18px 40px rgba(15, 42, 61, 0.12);
    --radius: 18px;
    --max-width: 1600px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, #eef6fb 0%, #f8fbfd 100%);
    color: var(--text);
    line-height: 1.6;
}

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

img {
    max-width: 100%;
}

.container {
    width: 95%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(220, 231, 239, 0.9);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    gap: 1rem;
}

.brand {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1.25rem;
}

.nav-links a {
    font-weight: 600;
    transition: color 0.25s ease, transform 0.25s ease;
}

.nav-links a:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.nav-button,
.primary-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.85rem 1.35rem;
    font-weight: 700;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.nav-button,
.primary-btn {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 10px 24px rgba(15, 106, 139, 0.22);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-dark);
    border: 1px solid var(--primary);
}

.primary-btn:hover,
.secondary-btn:hover,
.nav-button:hover {
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    border: none;
    background: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--primary-dark);
}

.page-content {
    padding-top: 0;
}

.hero,
.inner-banner {
    padding: 4rem 0 2rem;
    background:
        radial-gradient(circle at top left, rgba(244, 180, 0, 0.16), transparent 28%),
        radial-gradient(circle at right, rgba(15, 106, 139, 0.18), transparent 24%);
}

.hero-grid,
.detail-grid,
.form-layout,
.two-column,
.footer-grid {
    display: grid;
    gap: 1.5rem;
}

.hero-grid {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: center;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 0.75rem;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
}

.hero h1,
.inner-banner h1,
.section-heading h2,
.cta-banner h2 {
    line-height: 1.15;
}

.hero h1 {
    font-size: clamp(2.4rem, 5vw, 4.4rem);
    max-width: 12ch;
    margin-bottom: 1rem;
}

.hero p,
.inner-banner p,
.section-heading p,
.course-card p,
.download-card p,
.info-card p,
.detail-card p {
    color: var(--muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.hero-card,
.info-card,
.course-card,
.download-card,
.detail-card,
.cta-banner,
.flash-message {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.hero-card,
.info-card,
.course-card,
.download-card,
.detail-card {
    padding: 1.5rem;
}

.hero-card ul,
.styled-list {
    padding-left: 1.2rem;
    margin-top: 1rem;
}

.section {
    padding: 2.5rem 0;
}

.alt-section {
    background: rgba(255, 255, 255, 0.65);
}

.section-heading {
    margin-bottom: 1.25rem;
    max-width: 700px;
}

.info-grid,
.course-grid,
.download-grid {
    display: grid;
    gap: 1.5rem;
}

.info-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.course-grid,
.download-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.course-card,
.download-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
    color: var(--primary-dark);
}

.course-fee {
    font-size: 1.35rem;
    font-weight: 800;
    color: #e85d04;
    line-height: 1.3;
    margin: 0.25rem 0;
}

.course-card a,
.download-card a {
    margin-top: auto;
}

.view-details-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.25rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(15, 106, 139, 0.15);
    border: none;
    cursor: pointer;
    width: fit-content;
}

.view-details-btn:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 20px rgba(15, 106, 139, 0.25);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #fff;
}

.view-details-btn:active {
    transform: translateY(0) scale(0.98);
}

.detail-grid {
    grid-template-columns: 1.5fr 0.9fr;
}

.detail-item {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
}

.detail-item span {
    display: block;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--primary-dark);
}

.cta-banner {
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.form-layout,
.two-column,
.footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.enquiry-form {
    display: grid;
    gap: 0.85rem;
}

.enquiry-form label {
    font-weight: 700;
}

.enquiry-form input,
.enquiry-form select,
.enquiry-form textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    outline: none;
    font: inherit;
    background: #fbfdff;
}

.enquiry-form input:focus,
.enquiry-form select:focus,
.enquiry-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 106, 139, 0.12);
}

.full-width {
    width: 100%;
}

.flash-wrapper {
    padding-top: 1rem;
}

.flash-message {
    padding: 1rem 1.25rem;
}

.flash-message.success {
    border-left: 5px solid #1f9d55;
}

.flash-message.error {
    border-left: 5px solid #d14343;
}

.centered-message {
    text-align: center;
    max-width: 700px;
}

.footer {
    background: #0f2231;
    color: #e9f3f8;
    padding: 3rem 0 1rem;
}

.footer h3,
.footer h4 {
    margin-bottom: 0.75rem;
}

.copyright {
    text-align: center;
    margin-top: 2rem;
    color: #adc7d6;
}

@media (max-width: 900px) {
    .hero-grid,
    .detail-grid,
    .form-layout,
    .two-column,
    .footer-grid,
    .info-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        position: absolute;
        top: 78px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border);
        padding: 1rem;
        display: none;
        flex-direction: column;
    }

    .nav-links.open {
        display: flex;
    }

    .menu-toggle {
        display: inline-block;
    }
}

@media (max-width: 640px) {
    .hero,
    .inner-banner {
        padding-top: 4rem;
    }

    .cta-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero h1 {
        max-width: none;
    }
}

/* Advertisement Specific Styles */
.promo-bar {
    background: #e85d04;
    color: #fff;
    text-align: center;
    padding: 0.6rem;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    animation: flashBg 3s infinite alternate;
}

@keyframes flashBg {
    from { background: #e85d04; }
    to { background: #dc2f02; }
}

.ad-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.85rem 1.35rem;
    font-weight: 700;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    background: linear-gradient(135deg, #f48c06, #e85d04);
    color: #fff !important;
    border: none;
    box-shadow: 0 8px 20px rgba(232, 93, 4, 0.3);
    text-align: center;
}

.ad-action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(220, 47, 2, 0.5);
    background: linear-gradient(135deg, #e85d04, #dc2f02);
}

.ad-highlight {
    color: #e85d04;
    font-weight: 800;
}

.course-card-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.25rem;
}