:root {
    --bg-app: #fcfcfd;
    --bg-sidebar: #ffffff;
    --primary: #020617;
    --accent: #3b82f6;
    --accent-soft: rgba(59, 130, 246, 0.08);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-dim: #94a3b8;
    --border: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --sidebar-width: 260px;
    --header-height: 60px;
    --section-pad-top: 8px;
    --section-pad-bottom: 0px;
    --snap-type: y proximity;
    --radius-lg: 16px;
    --radius-md: 12px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-snap-type: var(--snap-type, y proximity);
    scroll-padding-top: calc(var(--header-height) + var(--section-pad-top));
}

body {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
.brand-name {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* --- SIDEBAR --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 100;
    overflow-y: auto;
    scrollbar-width: none;
}

.sidebar::-webkit-scrollbar {
    display: none;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 3rem;
    padding: 0 0.5rem;
}


.profile-avatar-container {
    position: relative;
    width: 52px;
    height: 52px;
    flex-shrink: 0;
}

.profile-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--border);
    border: 2px solid var(--accent);
    transition: var(--transition);
}

.profile-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#sidebar-photo {
    object-position: center 20%;
}

.profile-circle.large img {
    object-position: center 20%;
}

.profile-badge-wrap {
    position: relative;
    display: inline-flex;
}

.availability-badge {
    position: absolute;
    right: -24px;
    bottom: -6px;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.75rem;
    border-radius: 14px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.availability-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.12);
    flex: 0 0 auto;
}

.availability-status {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
    font-weight: 700;
    line-height: 1.1;
}

.availability-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.2;
}

.social-overlay {
    position: absolute;
    bottom: -15px;
    /* Positioned below the circle */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 5;
    background: var(--bg-sidebar);
    /* Small background to clear the border if needed */
    padding: 0 4px;
}

.social-icon-link {
    color: var(--text-dim);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon-link:hover {
    color: var(--accent);
    transform: translateY(-1px);
}

.social-icon-link svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    stroke-width: 2.2;
    fill: none;
}

.brand-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--primary);
}

.brand-status {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    position: relative;
    padding-right: 1rem;
}

.sidebar-nav::before,
.sidebar-nav::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    width: 3px;
    border-radius: 999px;
}

.sidebar-nav::before {
    height: 100%;
    background: var(--border);
}

.sidebar-nav::after {
    height: var(--nav-progress, 0%);
    background: var(--accent);
    transition: height 0.3s ease;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.75rem 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-item:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

.nav-item.active {
    background: var(--accent-soft);
    color: var(--accent);
}

.nav-icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    color: var(--accent);
}

.icon {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    display: inline-flex;
}

.icon-lg {
    width: 28px;
    height: 28px;
}

.icon-xl {
    width: 44px;
    height: 44px;
}

.icon-xxl {
    width: 72px;
    height: 72px;
}

.sidebar-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: auto;
}

.social-links-row {
    display: flex;
    gap: 12px;
}

.social-icon-link {
    color: var(--text-dim);
    transition: var(--transition);
}

.social-icon-link:hover {
    color: var(--primary);
}

.social-icon-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.modern-select {
    background: var(--bg-app);
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
    outline: none;
}

/* --- MAIN WRAPPER --- */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: visible;
}

.app-header {
    height: var(--header-height);
    padding: 0 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(252, 252, 253, 0.8);
    backdrop-filter: blur(8px);
    z-index: 50;
    position: sticky;
    top: 0;
}

.app-header .preview-flag {
    margin-left: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-breadcrumb {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.app-content {
    flex: 1;
    overflow: visible;
    padding: 0 2.5rem 4rem 2.5rem;
    scroll-behavior: smooth;
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
}

/* --- CONTENT UI --- */
.hero-section {
    padding-top: 0;
    margin-bottom: 5rem;
}

.hero-tagline {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--primary);
    margin-bottom: 2rem;
}

.hero-intro {
    font-size: 1.35rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    max-width: 720px;
}

.story-text {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-muted);
    max-width: 800px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    line-height: 1.6;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.section-header .section-title {
    margin-bottom: 0;
}

.foundation-header {
    justify-content: flex-start;
    align-items: center;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
}

.foundation-desc {
    margin-top: 0.35rem;
    margin-bottom: 0;
    text-align: left;
    max-width: none;
}

.foundation-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.highlight-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.highlight-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.highlight-card summary {
    list-style: none;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem 1.25rem;
    cursor: pointer;
}

.highlight-card summary::-webkit-details-marker {
    display: none;
}

.highlight-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.highlight-icon svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
}

.highlight-icon-svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.highlight-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.highlight-text strong {
    font-size: 1rem;
    color: var(--text-main);
}

.highlight-text span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.highlight-chevron {
    color: var(--text-dim);
    font-size: 1rem;
}

.highlight-card[open] .highlight-chevron {
    transform: rotate(180deg);
}

.highlight-details {
    padding: 0 1.25rem 1.25rem 4.25rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

.section-transition {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
}

.section-transition span {
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.7rem;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.overview-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.overview-meta-block {
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-sm);
}

.overview-meta-block p {
    color: var(--text-muted);
    line-height: 1.6;
    margin-top: 0.75rem;
}

.now-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: white;
    box-shadow: var(--shadow-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

.download-section {
    margin-top: 4rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.download-group .dim-label {
    margin-bottom: 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

.download-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.download-item {
    border: 1px solid var(--border);
    background: white;
    justify-content: flex-start;
    padding: 1rem;
}

.download-item .nav-icon {
    color: var(--accent);
}

.download-item.in-progress .nav-icon {
    stroke: var(--accent);
    color: var(--accent);
}

.file-viewer {
    position: fixed;
    top: var(--header-height);
    left: var(--sidebar-width);
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.12);
    padding: 1.5rem;
    z-index: 300;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.file-viewer.hidden {
    display: none;
}

.file-viewer-panel {
    background: white;
    border-radius: 18px;
    box-shadow: var(--shadow-md);
    width: min(900px, 100%);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
}

.file-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-app);
}

.file-viewer-title {
    font-weight: 700;
    color: var(--text-main);
}

.file-viewer-actions {
    display: flex;
    gap: 0.5rem;
}

.file-viewer-btn {
    border: 1px solid var(--border);
    background: white;
    padding: 0.45rem 0.9rem;
    border-radius: 10px;
    font-weight: 600;
    color: var(--text-main);
    text-decoration: none;
    cursor: pointer;
}

.file-viewer-body {
    flex: 1;
    overflow: auto;
    padding: 1.5rem;
    background: white;
}

.file-viewer-frame {
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 12px;
    min-height: 60vh;
}

.file-viewer-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.file-viewer-fallback {
    padding: 2rem;
    border: 1px dashed var(--border);
    border-radius: 12px;
    text-align: center;
    color: var(--text-muted);
}

.file-viewer-fallback a {
    display: inline-block;
    margin-top: 1rem;
    color: var(--accent);
    font-weight: 600;
}

@media (max-width: 960px) {
    .file-viewer {
        left: 0;
        top: 0;
        padding: 1rem;
    }
}

.now-layout {
    display: grid;
    grid-template-columns: minmax(240px, 420px) 1fr;
    gap: 2.5rem;
    align-items: stretch;
}

.now-media img {
    width: 100%;
    height: 100%;
    min-height: 420px;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    object-fit: cover;
    object-position: center 20%;
}

.opportunity-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    padding: 1.2rem 1.4rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.opportunity-head {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.opportunity-icon-wrap {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: #e7f7ec;
    color: #16a34a;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.opportunity-icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.opportunity-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #16a34a;
}

.opportunity-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.opportunity-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.8rem;
}

.opportunity-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.6rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-app);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.opportunity-tag-icon {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.narrative-adoption {
    display: grid;
    grid-template-columns: minmax(200px, 360px) 1fr;
    gap: 2.5rem;
    align-items: center;
    margin-top: 3rem;
    padding: 2rem;
}

.narrative-adoption-media img {
    width: 100%;
    border-radius: 16px;
    object-fit: cover;
}

.narrative-adoption-text h3 {
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.narrative-adoption-text p {
    color: var(--text-muted);
    line-height: 1.7;
}

.foundation-circle {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent);
    box-shadow: var(--shadow-sm);
    flex: 0 0 auto;
}

.foundation-circle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
}

.dim-label {
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.06em;
}

.cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.cert-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: white;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

.cert-chip:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.card-tags {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.status-tag {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: white;
    background: var(--primary);
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
}

.status-line {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: -0.25rem;
}

.resource-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: white;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
}

.resource-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tech-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: white;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-main);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.1rem 2.4rem;
    border-radius: 12px;
    border: 1px solid var(--primary);
    background: var(--primary);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
}

.cta-btn:hover {
    filter: brightness(1.08);
}

.development-layout {
    display: grid;
    grid-template-columns: minmax(340px, 560px) minmax(280px, 420px);
    gap: 2rem;
    align-items: start;
    margin-top: 2.5rem;
    justify-content: center;
}

.development-cards {
    max-width: 560px;
}

.development-aside {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.aggregate-card {
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.aggregate-title {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.6rem;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
    background: #fff;
}

.chip .chip-icon {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.development-image img {
    width: 100%;
    aspect-ratio: 4 / 5;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    object-fit: cover;
    object-position: center 12%;
}

.development-cards .rich-card + .rich-card {
    margin-top: 1.5rem;
}

.grid-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.timeline-rich {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
}

.rich-card {
    background: #fff;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.rich-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.rich-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.rich-card .focus-tag {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: inline-block;
}

.rich-card .explore-hint {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* --- DRAWER --- */
.drawer {
    position: fixed;
    inset: 0;
    z-index: 1000;
    visibility: hidden;
    transition: visibility var(--transition);
}

.drawer.open {
    visibility: visible;
}

.drawer-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition);
}

.drawer.open .drawer-overlay {
    opacity: 1;
}

.drawer-panel {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 100%;
    max-width: 500px;
    background: white;
    transform: translateX(100%);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
}

.drawer.open .drawer-panel {
    transform: translateX(0);
}

.drawer-close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--bg-app);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.drawer-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4rem 3rem;
    -webkit-overflow-scrolling: touch;
}

.drawer-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.drawer-content .dim-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

/* --- MINDSET SECTION --- */
.mindset-layout {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.philosophy-box {
    background: var(--primary);
    color: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
}

.philosophy-box h3 {
    margin-bottom: 1rem;
    color: var(--accent);
}

.philosophy-box p {
    font-size: 1.25rem;
    line-height: 1.6;
    opacity: 0.9;
}

.mindset-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.mindset-item {
    padding: 2rem;
    border-left: 2px solid var(--accent);
}

.mindset-card {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.mindset-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.mindset-card:hover img {
    transform: scale(1.05);
    opacity: 1 !important;
}

.mindset-card.adoption-card img {
    object-position: center 15%;
}

/* --- CONTACT --- */
.contact-hero {
    padding: 1rem 0 3rem;
    text-align: center;
}

#section-contact {
    padding-top: 0;
}

.contact-hero .profile-circle img {
    object-position: center 20%;
}

.contact-hero h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-email {
    font-size: 1.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.contact-email:hover {
    text-decoration: underline;
}

/* --- RESPONSIVENESS --- */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 240px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    #app-container,
    .main-wrapper {
        flex-direction: column;
    }

    .app-content {
        padding: 5rem 1.5rem 3rem !important;
    }

    .hero-header-flex {
        flex-direction: column;
        align-items: flex-start !important;
        text-align: left;
    }

    .development-layout {
        grid-template-columns: 1fr;
    }

    .narrative-adoption {
        grid-template-columns: 1fr;
    }

    .timeline-rich {
        grid-template-columns: 1fr;
    }

    .now-layout {
        grid-template-columns: 1fr;
    }

    .now-media img {
        min-height: 320px;
    }

    .profile-circle.large {
        width: 80px !important;
        height: 80px !important;
    }

    .drawer-panel {
        max-width: 100% !important;
    }

    .app-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(8px);
        z-index: 500;
    }

    .sidebar-footer {
        padding-bottom: 2rem;
    }
}

.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .mobile-only {
        display: flex;
    }
}

@media (max-width: 768px) {
    .app-header {
        gap: 0.75rem;
        justify-content: flex-start;
    }

    .header-breadcrumb {
        margin-right: auto;
    }
}

.responsive-lang {
    display: none;
    min-width: 72px;
}

@media (max-width: 1024px) {
    .responsive-lang {
        display: inline-flex;
    }

    #lang-switcher {
        display: none;
    }
}

/* Specific button styles for fixed mobile toggle */
#sidebar-mobile-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 200;
    background: white;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    #sidebar-mobile-toggle {
        position: relative;
        top: auto;
        left: auto;
        z-index: 1;
        margin-left: 0.75rem;
        min-width: 82px;
        justify-content: center;
    }
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 900;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.validation-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(245, 158, 11, 0.12);
    color: var(--text-main);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.validation-banner strong {
    color: var(--primary);
}

.validation-fallback {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    max-width: 720px;
    margin: 40px auto;
    box-shadow: var(--shadow-sm);
}

.validation-fallback ul {
    margin-top: 16px;
    padding-left: 18px;
    color: var(--text-muted);
}

/* Utilities */
.view-section {
    display: block;
    padding: calc(var(--header-height) + var(--section-pad-top)) 0 var(--section-pad-bottom) 0;
    min-height: calc(100vh - var(--header-height) - var(--section-pad-top) - var(--section-pad-bottom));
    scroll-snap-align: start;
    scroll-margin-top: calc(var(--header-height) + var(--section-pad-top));
}

.view-section.active {
    animation: fadeIn 0.4s ease-out;
}

/* Preview-only navigation view */
.preview-nav-only .sidebar {
    width: 100%;
    position: relative;
    height: auto;
    border-right: none;
}

.preview-nav-only .sidebar-overlay {
    display: none;
}

.preview-hide-sidebar .main-wrapper {
    margin-left: 0;
}


@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* Narrative Responsive Fixes */
@media (max-width: 768px) {
    .hero-tagline { font-size: 2.5rem !important; }
    .sidebar { width: 280px; z-index: 2000; }
    .drawer-panel { max-width: 100% !important; }
}

.profile-group { display: flex; gap: 1rem; align-items: center; }
.human-photo { border: 2px solid var(--border); transition: var(--transition); }
.human-photo:hover { border-color: var(--accent); transform: scale(1.05); }