nav a {
    color: var(--sidebar-color);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.2s;
}
nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
    position: absolute;
    left: 0;
    bottom: -4px;
}
nav a:hover {
    color: var(--accent);
}
nav a:hover::after {
    width: 100%;
}

.card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(42,82,152,0.08);
    padding: 2rem;
    width: 300px;
    transition: transform 0.2s, box-shadow 0.2s, border 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
}
.card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 8px 24px rgba(42,82,152,0.15);
    border: 2px solid #ffd700;
}

:root {
    --sidebar-width: 220px;
    --sidebar-bg: #f4f4f4;
    --sidebar-color: #222;
    --main-bg: #fff;
    --main-color: #222;
    --accent: #0078d7;
    --sidebar-hover: #4b1979; /* dark purple for sidebar hover (light mode) */
    --sidebar-hover-dark: #6f3fa7; /* slightly lighter purple for dark mode hover */
}
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--main-bg);
    color: var(--main-color);
    transition: background 0.3s, color 0.3s;
    display: flex;
    min-height: 100vh;
}
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-color);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    transition: width 0.3s;
    overflow: hidden;
    box-shadow: 2px 0 5px rgba(0,0,0,0.05);
    z-index: 100;
}
.sidebar.collapsed {
    width: 60px;
}
.sidebar .toggle-btn {
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    margin: 10px;
    color: inherit;
    outline: none;
}
.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 30px 0 0 0;
}
.sidebar li {
    padding: 15px 20px;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}
.sidebar li:hover {
    background: var(--sidebar-hover);
    color: #fff;
    transition: background 240ms ease, color 160ms ease;
}
.sidebar.collapsed li span {
    display: none;
}
.sidebar li i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}
.main-content {
    margin-left: var(--sidebar-width);
    padding: 30px;
    flex: 1;
    transition: margin-left 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.sidebar.collapsed ~ .main-content {
    margin-left: 60px;
}
.dark-mode {
    --sidebar-bg: #23272f;
    --sidebar-color: #f4f4f4;
    --main-bg: #181a20;
    --main-color: #f4f4f4;
    --accent: #4f8cff;
}
.dark-mode .sidebar li:hover {
    background: var(--sidebar-hover-dark);
    color: #fff;
}
.dark-mode .sidebar {
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
}
.dark-light-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    background: none;
    border: 1px solid var(--sidebar-color);
    color: inherit;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1em;
    transition: background 0.2s, color 0.2s;
    z-index: 200;
}

/* Skills & Abilities section styles */
.section {
    margin-top: 24px;
}
.section h2 {
    margin: 0 0 12px 0;
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px 24px; /* increased row and column gaps */
    margin-top: 22px;
    justify-items: center;
}
.skill-card {
    background: var(--sidebar-bg);
    color: var(--sidebar-color);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    width: 100%;
    max-width: 320px;
}

/* center specific skill card */
.skill-center {
    justify-self: center;
}

@media (min-width: 1000px) {
    /* place the center card in the middle column when grid has 3+ columns */
    .skills-grid { grid-template-columns: repeat(3, 1fr); }
    .skill-center { grid-column: 2 / 3; }
}

@media (max-width: 999px) and (min-width: 600px) {
    /* two-column layout: make center span both columns and center itself */
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .skill-center { grid-column: 1 / -1; }
}
.skill-name {
    font-weight: 600;
    margin-bottom: 8px;
}
.skill-bar {
    background: rgba(0,0,0,0.06);
    height: 10px;
    border-radius: 6px;
    overflow: hidden;

}
.skill-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 6px 0 0 6px;
}

/* Section spacing and officers styling for single-page layout */
.main-content .section {
    padding: 24px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}
.officers-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 12px;
    justify-items: center;
}
.block-card {
    background: var(--sidebar-bg);
    color: var(--sidebar-color);
    padding: 3px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    text-align: center;
    width: 100%;
    max-width: 260px;
}

/* Home section seal */
.home-seal img {
    width: 160px;
    height: auto;
    display: block;
    filter: none;
    margin: 0 auto 16px auto;
}

.home-seal img { width: 120px; }

/* animations */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 420ms ease, transform 420ms ease;
}
.reveal-visible {
    opacity: 1;
    transform: translateY(0);
}
.block-card.lift {
    transform: translateY(-6px) scale(1.02);
    transition: transform 220ms ease;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.skill-fill {
    transition: width 900ms cubic-bezier(.2,.9,.2,1);
}