/* ===== Common Styles | Trainingcqy Portfolio ===== */
* {
    -webkit-tap-highlight-color: transparent;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    color-scheme: light dark;
    --bg-color: #f7f9fc;
    --surface-color: #ffffff;
    --text-primary: #1f1f1f;
    --text-secondary: #444746;
    --accent-blue: #c2e7ff;
    --accent-blue-text: #001d35;
    --hover-color: #f0f4f8;
    --active-color: #e0e4e8;
    --border-color: #e0e0e0;
    --chip-border: #c4c7c5;
    --primary-blue: #0b57d0;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --surface-color: #1e1e1e;
        --text-primary: #e3e3e3;
        --text-secondary: #a0a0a0;
        --accent-blue: #004a77;
        --accent-blue-text: #c2e7ff;
        --hover-color: #2c2c2c;
        --active-color: #3d3d3d;
        --border-color: #333333;
        --chip-border: #444444;
        --primary-blue: #8ab4f8;
    }
}
body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}
/* ===== Top Navigation ===== */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    z-index: 20;
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 8px;
    background-color: var(--bg-color);
}
.logo-area {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-right: 24px;
    white-space: nowrap;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    height: 40px;
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s, transform 0.25s;
    flex-shrink: 0;
    white-space: nowrap;
    cursor: pointer;
}
@media (hover: hover) and (pointer: fine) {
    .nav-item:hover { background-color: var(--hover-color); }
}
.nav-item:active { background-color: var(--active-color); transform: scale(0.9); }
.nav-item.active { background-color: var(--accent-blue); color: var(--accent-blue-text); }
.nav-item .material-symbols-outlined { font-size: 20px; }
/* ===== Bottom Navigation (Mobile) ===== */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0; left: 0;
    width: 100%;
    height: 64px;
    background: var(--surface-color);
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    padding-bottom: env(safe-area-inset-bottom);
    box-sizing: content-box;
}
.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    width: 64px;
    height: 100%;
    gap: 4px;
}
.bottom-nav-item.active .icon-container {
    background-color: var(--accent-blue);
    color: var(--accent-blue-text);
}
.bottom-nav-item .icon-container {
    width: 64px;
    height: 32px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}
.bottom-nav-item:active .icon-container { transform: scale(0.95); }
.bottom-nav-item .material-symbols-outlined { font-size: 24px; }
/* ===== Interaction Protection ===== */
.project-card,
.photo-card {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}
/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
    .topbar { display: none; }
    .bottom-nav { display: flex; }
}

.card-actions {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 16px !important;
}

.action-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    padding: 10px 14px !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
    white-space: nowrap !important;
    margin-left: 0 !important;
}

@media (max-width: 480px) {
    .card-actions {
        gap: 8px !important;
    }

    .action-btn {
        flex: 1 1 100% !important;
        width: 100% !important;
    }
}