/* Pitechpedia Sitemap — Google Material Design 3 */

:root {
    --m3-primary: #4285F4;
    --m3-on-primary: #ffffff;
    --m3-primary-container: #d3e3fd;
    --m3-on-primary-container: #041e49;
    --m3-surface: #f8f9fa;
    --m3-surface-container: #eef0f2;
    --m3-surface-variant: #e1e2e6;
    --m3-on-surface: #1f1f1f;
    --m3-on-surface-variant: #44474e;
    --m3-outline: #74777f;
    --m3-outline-variant: #c4c7cf;
}

body.dark-mode {
    --m3-primary: #a8c7fa;
    --m3-on-primary: #062e6f;
    --m3-primary-container: #0842a0;
    --m3-on-primary-container: #d3e3fd;
    --m3-surface: #1a1c1e;
    --m3-surface-container: #1d1f21;
    --m3-surface-variant: #44474e;
    --m3-on-surface: #e2e2e6;
    --m3-on-surface-variant: #c4c7cf;
    --m3-outline: #8e9099;
    --m3-outline-variant: #44474e;
}

/* === Page === */
.m3-sitemap {
    min-height: 100vh;
    padding: 100px 24px 64px;
    background: var(--m3-surface);
    color: var(--m3-on-surface);
    font-family: 'Inter', sans-serif;
}

/* === Header === */
.m3-sitemap-header {
    text-align: center;
    margin-bottom: 64px;
}

.m3-display-large {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    margin: 0 0 12px 0;
    background: linear-gradient(135deg, #4285F4, #34A853);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.m3-sitemap-header .m3-body-large {
    color: var(--m3-on-surface-variant);
    font-size: 1.1rem;
    margin: 0;
}

/* === Tree Container === */
.m3-tree-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

/* === Root Node === */
.m3-root-wrapper {
    margin-bottom: 0;
    position: relative;
    z-index: 10;
}

.m3-root-node {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 32px;
    background: var(--m3-surface-container);
    border: 1px solid var(--m3-outline-variant);
    border-radius: 24px;
    text-decoration: none;
    color: var(--m3-on-surface);
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.m3-root-node:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(66, 133, 244, 0.15);
    border-color: var(--m3-primary);
}

.m3-node-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.m3-node-icon.root-icon {
    width: 56px;
    height: 56px;
    background: var(--m3-primary-container);
    color: var(--m3-on-primary-container);
    border-radius: 16px;
}

.m3-node-icon.root-icon .material-symbols-outlined {
    font-size: 28px;
}

.node-logo {
    height: 20px;
    margin-bottom: 4px;
}

.m3-title-medium {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    margin: 0;
}

.m3-node-content .m3-body-small {
    color: var(--m3-on-surface-variant);
    font-size: 0.8rem;
    margin: 2px 0 0 0;
}

/* === Connectors === */
.m3-tree-connector {
    background: var(--m3-outline-variant);
    z-index: 1;
}

.m3-tree-connector.vertical {
    width: 2px;
    height: 40px;
}

.m3-tree-connector.horizontal {
    height: 2px;
    width: calc(100% - 100px);
    max-width: 1200px;
}

/* === Branch Grid === */
.m3-branch-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 20px;
    width: 100%;
    padding: 0;
}

.m3-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.m3-branch-connector {
    width: 2px;
    height: 28px;
    background: var(--m3-outline-variant);
    margin-bottom: 8px;
}

/* === Branch Node === */
.m3-branch-node {
    text-align: center;
    padding: 20px 12px;
    background: var(--m3-surface-container);
    border: 1px solid var(--m3-outline-variant);
    border-radius: 16px;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    cursor: default;
}

.m3-branch-node:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    border-color: var(--m3-primary);
}

.m3-branch-node .m3-node-icon {
    margin: 0 auto 12px;
    background: rgba(0,0,0,0.03);
    border-radius: 12px;
}

body.dark-mode .m3-branch-node .m3-node-icon {
    background: rgba(255,255,255,0.06);
}

.m3-branch-node .m3-node-icon .material-symbols-outlined {
    font-size: 24px;
}

.m3-branch-node .m3-title-small {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    margin: 0 0 4px 0;
    color: var(--m3-on-surface);
}

.m3-branch-node .m3-body-small {
    font-size: 0.75rem;
    color: var(--m3-on-surface-variant);
    margin: 0;
}

/* === Sub Links === */
.m3-sub-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 16px;
    width: 100%;
}

.m3-sub-link {
    display: block;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 12px;
    text-decoration: none;
    color: var(--m3-on-surface);
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s ease;
}

.m3-sub-link:hover {
    background: var(--m3-surface-container);
    border-color: var(--m3-outline-variant);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

body.dark-mode .m3-sub-link:hover {
    background: var(--m3-surface-variant);
}

/* === Other Pages === */
.m3-other-pages {
    max-width: 1400px;
    margin: 64px auto 0;
    padding: 48px 0;
    border-top: 1px solid var(--m3-outline-variant);
}

.m3-headline-small {
    font-family: 'Outfit', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 40px 0;
    color: var(--m3-on-surface-variant);
}

.m3-other-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.m3-other-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--m3-surface-container);
    border: 1px solid var(--m3-outline-variant);
    border-radius: 16px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
}

.m3-other-card:hover {
    transform: translateY(-4px);
    border-color: var(--m3-primary);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.m3-other-card .material-symbols-outlined {
    font-size: 24px;
    color: var(--m3-primary);
    flex-shrink: 0;
}

.m3-other-card h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--m3-on-surface);
}

.m3-other-card p {
    margin: 4px 0 0;
    font-size: 0.8rem;
    color: var(--m3-on-surface-variant);
}

/* === Responsive === */
@media (max-width: 1200px) {
    .m3-branch-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .m3-tree-connector.horizontal,
    .m3-branch-connector { display: none; }
}

@media (max-width: 768px) {
    .m3-sitemap { padding: 80px 16px 48px; }
    .m3-branch-grid { grid-template-columns: repeat(2, 1fr); }
    .m3-other-grid { grid-template-columns: 1fr; }
    .m3-tree-connector.vertical { display: none; }
}

@media (max-width: 480px) {
    .m3-branch-grid { grid-template-columns: 1fr; }
}