:root {
    --primary: #0d4f8b;
    --primary-dark: #07365e;
    --accent: #ff8f1f;
    --accent-soft: #fff2e1;
    --dark: #10243b;
    --light: #f4f8fc;
    --text: #43576b;
    --border: #dbe5ee;
    --shadow: 0 18px 40px rgba(13, 79, 139, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: #ffffff;
}

img {
    width: 100%;
    display: block;
}

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

.container {
    width: min(1160px, calc(100% - 2rem));
    margin: 0 auto;
}

.topbar {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 0.75rem 0;
    font-size: 0.95rem;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* padding: 1rem 0; */
}

.brand {
    display: inline-flex;
    align-items: center;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    color: var(--primary-dark);
}

.brand img {
    width: 100px;
    height: auto;
    display: block;
}

.brand-name {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.nav-links {
    display: flex;
    gap: 1.1rem;
    align-items: center;
}

.nav-links a {
    font-weight: 600;
    color: var(--dark);
}

.nav-links a:hover {
    color: var(--accent);
}

.btn {
    display: inline-block;
    padding: 0.82rem 1.15rem;
    border-radius: 999px;
    font-weight: 700;
    transition: 0.2s ease;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

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

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

.hamburger {
    display: none;
    background: none;
    border: 0;
    font-size: 1.4rem;
    color: var(--primary);
    cursor: pointer;
}

.hero {
    background: linear-gradient(135deg, #edf7ff 0%, #f9fcff 100%);
    padding: 4rem 0 3.5rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: center;
}

.hero-copy h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    color: var(--dark);
    margin: 0 0 0.8rem;
    line-height: 1.12;
}

.hero-copy p {
    font-size: 1.02rem;
    margin-bottom: 1rem;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent);
    font-weight: 800;
    margin-bottom: 0.7rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin: 1.2rem 0 1.4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
}

.stat-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.95rem;
    box-shadow: var(--shadow);
}

.stat-card strong {
    display: block;
    font-size: 1.1rem;
    color: var(--primary);
}

.stat-card span {
    display: block;
    font-size: 0.92rem;
    color: var(--text);
}

.hero-visual {
    position: relative;
}

.hero-visual {
    position: relative;
    min-height: 460px;
}

.hero-visual img {
    height: 100%;
    min-height: 460px;
    width: 100%;
    object-fit: cover;
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.hero-floating-card {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    max-width: 300px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    box-shadow: var(--shadow);
}

.hero-floating-card h3 {
    margin: 0 0 0.3rem;
    color: var(--primary);
}

.section {
    padding: 4.2rem 0;
}

.section-alt {
    background: var(--light);
}

.section-intro {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 2rem;
}

.section-intro h2 {
    font-size: clamp(1.5rem, 2.5vw, 2.1rem);
    color: var(--dark);
    margin: 0 0 0.6rem;
}

.about-grid,
.course-grid,
.gallery-grid,
.testimonial-grid {
    display: grid;
    gap: 1.15rem;
}

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

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

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

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

.card,
.course-card,
.placement-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.2rem;
    box-shadow: var(--shadow);
}

.card h3,
.course-card h3 {
    margin-top: 0;
    color: var(--primary);
}

.icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    font-weight: 800;
}

.course-card {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.course-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.9rem;
}

.course-tag {
    background: var(--accent-soft);
    color: var(--accent);
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    font-weight: 700;
}

.course-duration {
    color: var(--primary);
    font-weight: 700;
}

.course-card ul {
    padding-left: 1rem;
    margin: 0.2rem 0 0;
    color: var(--text);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.6rem;
    margin-top: auto;
    padding-top: 0.3rem;
}

.course-footer a {
    color: var(--accent);
    font-weight: 700;
}

.placement-section {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.3rem;
    align-items: center;
}

.check-list {
    display: grid;
    gap: 0.55rem;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--dark);
}

.placement-card {
    background: linear-gradient(135deg, var(--primary), #1b76c5);
    color: white;
}

.placement-card h3 {
    color: white;
}

.gallery-action {
    margin-top: 0.8rem;
}

.gallery-grid img,
.gallery-grid video {
    height: 450px;
    width: 100%;
    object-fit: cover;
    display: block;
    background: #e2e8f0;
}

.gallery-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 0.6rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.gallery-item-media {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
}

.gallery-item-label {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.75rem 0.85rem;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0), rgba(15, 23, 42, 0.82));
    color: white;
    font-weight: 700;
    font-size: 0.92rem;
}

.gallery-meta {
    padding: 0.8rem 0.2rem 0.4rem;
}

.gallery-meta h3 {
    margin: 0 0 0.3rem;
    color: var(--primary);
    font-size: 1.05rem;
}

.gallery-meta p {
    margin: 0;
    color: var(--text);
    font-size: 0.95rem;
}

.testimonial-card p {
    margin-top: 0;
    font-style: italic;
}

.gallery-modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.gallery-modal.open {
    display: flex;
}

.gallery-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.8);
}

.gallery-modal-content {
    position: relative;
    width: min(960px, calc(100% - 2rem));
    max-height: 90vh;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 24px 60px rgba(2, 6, 23, 0.35);
}

.gallery-modal-body {
    padding: 1rem;
}

.gallery-modal-media img,
.gallery-modal-media video {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 14px;
    background: #0f172a;
}

.gallery-modal-caption {
    padding: 0.9rem 0.2rem 0;
}

.gallery-modal-caption h3 {
    margin: 0 0 0.3rem;
    color: var(--primary);
}

.gallery-modal-caption p {
    margin: 0;
    color: var(--text);
}

.gallery-modal-close,
.gallery-modal-nav {
    position: absolute;
    top: 1rem;
    z-index: 2;
    border: 0;
    background: rgba(13, 79, 139, 0.9);
    color: white;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
}

.gallery-modal-close {
    right: 1rem;
}

.gallery-modal-prev {
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.gallery-modal-next {
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.contact-box {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.4rem;
    background: linear-gradient(135deg, var(--primary), #1c77ca);
    color: white;
    border-radius: 20px;
    padding: 2rem;
}

.contact-box a {
    color: #fde6c2;
}

.contact-card ul {
    padding-left: 1rem;
    margin: 0.6rem 0 0;
}

.contact-card li {
    margin-bottom: 0.4rem;
}

footer {
    background: var(--dark);
    color: #dce8f2;
    padding: 1.4rem 0;
    text-align: center;
}

@media (max-width: 920px) {

    .hero-grid,
    .placement-section,
    .contact-box {
        grid-template-columns: 1fr;
    }

    .about-grid,
    .course-grid,
    .gallery-grid,
    .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        right: 1rem;
        background: white;
        border: 1px solid var(--border);
        border-radius: 12px;
        flex-direction: column;
        padding: 0.8rem;
        width: min(220px, calc(100% - 2rem));
        box-shadow: 0 14px 35px rgba(16, 42, 67, 0.12);
    }

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

    .about-grid,
    .course-grid,
    .gallery-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 2.5rem;
    }

    .hero-visual,
    .hero-visual img {
        min-height: 280px;
    }
}