/* ============================================
   Euonia Portal — About Page Styles
   ============================================ */

.about-page {
    padding-top: calc(var(--nav-height) + 40px);
    padding-bottom: 80px;
    min-height: 100vh;
}
.about-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}
.about-header {
    text-align: center;
    margin-bottom: 56px;
}
.about-brand .logo-greek {
    font-size: 3rem;
    font-family: var(--font-serif);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.about-brand .logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-left: 8px;
}
.about-tagline {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-top: 12px;
    font-style: italic;
}
.about-version {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 6px;
    font-family: var(--font-mono);
}

/* About logo */
.about-logo {
    text-align: center;
    margin: -12px 0 48px;
}
.about-logo-img {
    width: 156px;
    height: 156px;
    border-radius: 50%;
    margin: 0 auto;
    opacity: 0.9;
    transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-out);
    box-shadow:
        0 0 0 4px rgba(99, 102, 241, 0.15),
        0 0 30px rgba(99, 102, 241, 0.2),
        0 0 60px rgba(139, 92, 246, 0.1);
    animation: logoPulse 3s ease-in-out infinite;
}
.about-logo-img:hover {
    transform: scale(1.06) rotate(5deg);
    opacity: 1;
    box-shadow:
        0 0 0 4px rgba(99, 102, 241, 0.35),
        0 0 50px rgba(99, 102, 241, 0.35),
        0 0 90px rgba(139, 92, 246, 0.2);
}
@keyframes logoPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}
.logo-theme-dark { display: block; }
.logo-theme-light { display: none; }
[data-theme="light"] .logo-theme-dark { display: none; }
[data-theme="light"] .logo-theme-light { display: block; }

.about-section {
    margin-bottom: 52px;
}
.about-section h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}
.about-section p {
    color: var(--color-text);
    line-height: 1.85;
    margin-bottom: 12px;
}

/* Philosophy grid */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.philosophy-card {
    padding: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    transition: border-color 0.2s, transform 0.2s;
}
.philosophy-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-2px);
}
.philosophy-icon {
    font-size: 1.8rem;
    margin-bottom: 12px;
}
.philosophy-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 8px;
}
.philosophy-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.55;
    margin: 0;
}

/* Dual stack cards */
.dual-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.stack-card {
    padding: 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
}
.stack-card.dotnet-stack { border-left: 3px solid var(--color-net); }
.stack-card.java-stack { border-left: 3px solid var(--color-java); }
.stack-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.stack-header i {
    font-size: 1.4rem;
}
.stack-card.dotnet-stack .stack-header i { color: #a78bfa; }
.stack-card.java-stack .stack-header i { color: #fbbf24; }
.stack-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-heading);
    margin: 0;
}
.stack-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.stack-card li {
    padding: 6px 0;
    font-size: 0.87rem;
    color: var(--color-text);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.stack-card li:last-child { border-bottom: none; }
.stack-card li strong {
    color: var(--color-text-bright);
    font-weight: 600;
    display: inline-block;
    min-width: 72px;
}

/* License box */
.license-box {
    margin-top: 16px;
    padding: 20px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* About links */
.about-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 20px;
}
.about-link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 20px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    text-decoration: none;
    color: var(--color-text);
    text-align: center;
    transition: all 0.2s;
}
.about-link-card:hover {
    border-color: var(--color-accent);
    background: rgba(99, 102, 241, 0.04);
    transform: translateY(-2px);
}
.about-link-card i {
    font-size: 1.3rem;
    color: var(--color-accent);
}
.about-link-card span {
    font-weight: 600;
    font-size: 0.9rem;
}
.about-link-card small {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Author card */
.author-card {
    display: flex;
    gap: 24px;
    padding: 28px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    align-items: flex-start;
}
.author-avatar {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
    display: flex;
    align-items: center;
    justify-content: center;
}
.author-initials {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-mono);
}
.author-info h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 10px;
}
.author-aka {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}
.author-bio {
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 8px;
}
.author-links {
    display: flex;
    gap: 16px;
    margin-top: 14px;
}
.author-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.84rem;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}
.author-link:hover {
    color: var(--color-accent-2);
    text-decoration: underline;
}

@media (max-width: 640px) {
    .about-header .logo-greek { font-size: 2rem; }
    .about-header .logo-text { font-size: 1.2rem; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .dual-stack { grid-template-columns: 1fr; }
    .about-links { grid-template-columns: 1fr; }
    .author-card { flex-direction: column; align-items: center; text-align: center; }
    .author-links { justify-content: center; }
    .about-container { padding: 0 20px; }
}