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

:root {
    --color-primary: #2d3748;
    --color-accent: #4a6fa5;
    --color-text: #2d3748;
    --color-text-light: #4a5568;
    --color-bg-light: #f5f7fa;
    --color-bg-white: #ffffff;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
header {
    background-color: var(--color-bg-white);
    padding: 1rem 0;
    border-bottom: 3px solid var(--color-accent);
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 700;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* About Section */
#about {
    background-color: var(--color-bg-white);
    padding: 3.5rem 0;
}

#about h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

#about p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.8;
}

#about p:last-child {
    margin-bottom: 0;
}

/* Aims Section */
#aims {
    background-color: var(--color-bg-light);
    padding: 3.5rem 0;
}

#aims h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

#aims p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.8;
}

#aims p:last-child {
    margin-bottom: 0;
}

/* Members Section */
#members {
    background-color: var(--color-bg-white);
    padding: 3.5rem 0;
}

#members h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 2rem;
}

.members-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
}

.member-card {
    text-align: center;
}

.member-photo {
    width: 100%;
    aspect-ratio: 1;
    background-color: #e2e8f0;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1rem;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Hide broken image icon when no image exists */
.member-photo img[src]::after {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background-color: #e2e8f0;
}

.member-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* Footer */
footer {
    background-color: var(--color-bg-white);
    padding: 2rem 0;
    border-top: 1px solid #e2e8f0;
}

footer p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .members-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

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

@media (max-width: 480px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .members-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}