@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Sans+3:wght@300;400;600&display=swap');

:root {
    --primary: #0f172a;
    --accent: #1d4ed8;
    --light: #f8fafc;
    --muted: #64748b;
    --surface: #ffffff;
    --border: rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Source Sans 3', sans-serif;
    color: var(--primary);
    background: var(--light);
    line-height: 1.6;
}

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

.site-header {
    color: #ffffff;
    padding: 3.5rem 1.5rem 5rem;
}

body[data-page="home"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.78), rgba(15, 23, 42, 0.78)),
        url('https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

body[data-page="services"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.82)),
        url('https://images.unsplash.com/photo-1521791055366-0d553872125f?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

body[data-page="expertise"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.82)),
        url('https://images.unsplash.com/photo-1521587760476-6c12a4b040da?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

body[data-page="methodology"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.82)),
        url('https://images.unsplash.com/photo-1486312338219-ce68d2c6f44d?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

body[data-page="recognitions"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.82)),
        url('https://images.unsplash.com/photo-1473862170187-1d0c0975c63e?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

body[data-page="contact"] .site-header {
    background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.82)),
        url('https://images.unsplash.com/photo-1507679799987-c73779587ccf?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

.language-switch {
    display: flex;
    gap: 0.5rem;
}

.language-switch button {
    background: transparent;
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-switch button:hover,
.language-switch button.active {
    background: #ffffff;
    color: var(--primary);
}

.hero {
    max-width: 660px;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.7rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: #ffffff;
    padding: 0.8rem 1.85rem;
    border-radius: 999px;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(29, 78, 216, 0.3);
    transition: transform 0.3s ease;
}

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

main {
    padding: 3.5rem 1.5rem 4rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--muted);
    max-width: 720px;
    margin: 0 auto 3rem;
}

.highlight {
    background: var(--surface);
    border-radius: 22px;
    padding: 2.5rem;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

.highlight-grid {
    display: grid;
    gap: 2.5rem;
}

.highlight-grid img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 18px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.12);
    object-fit: cover;
}

.credential-card {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: grid;
    gap: 1rem;
}

.credential-card h3 {
    margin: 0;
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
}

.credential-card p {
    margin: 0;
    color: var(--muted);
}

.credential-list,
.contact-details {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
    color: var(--muted);
}

.credential-list .label,
.contact-details .label {
    font-weight: 600;
    color: var(--primary);
    margin-right: 0.35rem;
}

.credential-list a,
.contact-details a {
    color: var(--accent);
    font-weight: 600;
}

@media (min-width: 900px) {
    .highlight-grid.two-column {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: center;
    }
}

.list {
    padding-left: 1.2rem;
    margin: 1.5rem 0 0;
    color: var(--muted);
}

.list li + li {
    margin-top: 0.65rem;
}

.cards {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .cards.three {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .cards.two {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.card {
    background: var(--surface);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card h3 {
    font-size: 1.3rem;
    margin: 0;
}

.metrics {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .metrics {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.metric {
    background: rgba(29, 78, 216, 0.08);
    color: var(--primary);
    padding: 1.75rem;
    border-radius: 16px;
    text-align: center;
}

.metric strong {
    display: block;
    font-size: 2rem;
    font-family: 'Playfair Display', serif;
}

.timeline {
    position: relative;
    padding-left: 1.5rem;
    border-left: 2px solid rgba(15, 23, 42, 0.15);
    display: grid;
    gap: 2.5rem;
}

.timeline-step h3 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.awards {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    color: var(--muted);
}

.awards span {
    background: var(--surface);
    border-radius: 999px;
    padding: 0.6rem 1.4rem;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

.contact-grid {
    display: grid;
    gap: 2.5rem;
}

@media (min-width: 900px) {
    .contact-grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }
}

.contact-card {
    background: var(--surface);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

.card-subtitle {
    margin: 2rem 0 1rem;
    font-size: 1.1rem;
    font-weight: 700;
}

form {
    display: grid;
    gap: 1rem;
}

label {
    font-weight: 600;
}

input,
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    font: inherit;
    background: #ffffff;
}

textarea {
    min-height: 140px;
}

button[type="submit"] {
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    padding: 0.9rem 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

button[type="submit"]:hover {
    background: #153ea9;
}

.form-status {
    margin: 0.25rem 0 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
}

footer {
    padding: 2rem 1.5rem 3rem;
    background: #0b1120;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    font-size: 0.95rem;
}

footer a {
    color: #ffffff;
    font-weight: 600;
}

@media (max-width: 720px) {
    .top-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        order: 2;
    }

    .language-switch {
        order: 3;
    }
}