@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
    --primary: #44789f;
    --text-light: #eaeaea;
    --text-dark: #1a1a1a;
    --bg-light: #fff;
    --bg-dark: #0f0f0f;
    --bg-card-light: #f9f9f9;
    --bg-card-dark: #111111;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Share Tech Mono', monospace;
    line-height: 1.6;
    font-size: 16px;
    color: var(--text-dark);
    background: var(--bg-light);
    transition: var(--transition);
}

body.dark-mode {
    background: var(--bg-dark);
    color: var(--text-light);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    padding: 50px 0 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 20px;
}

.logo {
    font-weight: 700;
    font-size: 32px;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.dark-mode .logo {
    color: var(--text-light);
}

.logo span {
    font-weight: 300;
}

.main-nav {
    display: flex;
    gap: 25px;
}

.main-nav a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav a:hover {
    text-decoration: underline;
    color: var(--primary);
}

.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 22px;
    color: var(--primary);
    cursor: pointer;
    z-index: 100;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.dark-mode-toggle:hover {
    background: rgba(68, 120, 159, 0.1);
}

.mantra {
    font-family: 'Times New Roman', serif;
    font-style: italic;
    color: #777;
    text-align: left;
    font-size: 16px;
    line-height: 1.8;
    border-left: 2px solid var(--primary);
    padding-left: 15px;
}

.dark-mode .mantra {
    color: #bbb;
}

.mantra small {
    display: block;
    font-size: 14px;
    margin-top: 5px;
    color: var(--text-dark);
    opacity: 0.8;
}

.dark-mode .mantra small {
    color: var(--text-light);
    opacity: 0.7;
}

h1 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 30px;
    color: var(--text-dark);
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.dark-mode h1 {
    color: var(--text-light);
}

h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 40px 0 20px;
    color: var(--text-dark);
    letter-spacing: -0.3px;
    position: relative;
    padding-bottom: 10px;
}

h2:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary);
}

.dark-mode h2 {
    color: var(--text-light);
}

h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 10px 0 5px;
    color: var(--text-dark);
}

.dark-mode h4 {
    color: var(--text-light);
}

p {
    margin-bottom: 20px;
    line-height: 1.8;
}

section {
    margin-bottom: 20px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    text-decoration: underline;
}

b {
    font-weight: 600;
}

.theme-image {
    width: 100%;
    margin-bottom: 30px;
    border-radius: 8px;
}

blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 20px;
    margin: 30px 0;
    font-style: italic;
    color: #666;
    line-height: 1.8;
}

.dark-mode blockquote {
    color: #aaa;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

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

.team-image-placeholder {
    width: 150px;
    height: 150px;
    margin: 0 auto 15px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-card-light);
    border: 3px solid var(--primary);
}

.dark-mode .team-image-placeholder {
    background: var(--bg-card-dark);
}

.team-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
}

.team-role {
    color: #777;
    font-size: 14px;
    margin-bottom: 0;
}

.dark-mode .team-role {
    color: #bbb;
}

/* Research areas */
.research-areas {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    margin: 30px 0;
}

.research-card {
    background: var(--bg-card-light);
    border-radius: 12px;
    padding: 25px;
    transition: var(--transition);
    border: 1px solid transparent;
    flex: 1 1 100%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-direction: column;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-color: rgba(68, 120, 159, 0.3);
}

.dark-mode .research-card {
    background: var(--bg-card-dark);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.dark-mode .research-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.research-card h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
    border-bottom: 1px solid rgba(68, 120, 159, 0.2);
    padding-bottom: 10px;
}

.dark-mode .research-card h3 {
    color: var(--text-light);
}

.research-card i {
    color: var(--primary);
    font-size: 26px;
}

.research-card p {
    margin-bottom: 15px;
}

.research-card p:last-of-type {
    margin-bottom: 0;
}

/* Support section */
.support {
    margin: 40px 0;
    background: var(--bg-card-light);
    border-radius: 12px;
    padding: 25px;
}

.dark-mode .support {
    background: var(--bg-card-dark);
}

.support h2 {
    margin-top: 0;
}

.crypto-address {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 15px 0;
    font-family: monospace;
    font-size: 14px;
    overflow-wrap: break-word;
    word-break: break-all;
    padding: 10px;
    background: rgba(68, 120, 159, 0.05);
    border-radius: 6px;
    transition: var(--transition);
}

.dark-mode .crypto-address {
    background: rgba(68, 120, 159, 0.1);
}

.crypto-address:hover {
    background: rgba(68, 120, 159, 0.1);
}

.dark-mode .crypto-address:hover {
    background: rgba(68, 120, 159, 0.15);
}

.crypto-address i {
    color: var(--primary);
    min-width: 20px;
    font-size: 18px;
}

/* Footer */
footer {
    text-align: center;
    padding: 50px 0 30px;
    margin-top: 60px;
    border-top: 1px solid rgba(120, 120, 120, 0.1);
    color: #777;
    font-size: 14px;
}

.dark-mode footer {
    border-color: rgba(120, 120, 120, 0.2);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 25px;
}

.social-links a {
    color: var(--primary);
    font-size: 22px;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.social-links a:hover {
    background: rgba(68, 120, 159, 0.1);
    text-decoration: none;
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 30px;
    }

    header {
        padding: 30px 0 20px;
    }

    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .main-nav {
        flex-direction: column;
        gap: 10px;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }
}