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

:root {
    --bg: #f5f6fb;
    --bg-soft: #ffffff;
    --surface: rgba(255, 255, 255, 0.9);
    --surface-strong: rgba(255, 255, 255, 0.98);
    --stroke: rgba(20, 27, 45, 0.08);
    --text: #15192c;
    --muted: rgba(21, 25, 44, 0.65);
    --accent: #7b4dff;
    --accent-2: #1f9ceb;
    --accent-3: #0fb5a9;
    --accent-soft: rgba(123, 77, 255, 0.08);
    --accent-blue-soft: rgba(79, 140, 255, 0.12);
    --shadow: 0 24px 70px rgba(37, 45, 80, 0.18);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    background: radial-gradient(circle at top, rgba(123, 77, 255, 0.13), transparent 50%) fixed,
                radial-gradient(circle at 20% 20%, rgba(15, 181, 169, 0.15), transparent 45%) fixed,
                var(--bg);
    color: var(--text);
    min-height: 100vh;
}

.page-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: min(1200px, 100%);
    margin: 0 auto;
    padding: 0 24px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--stroke);
    box-shadow: 0 8px 24px rgba(15, 20, 40, 0.08);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    text-decoration: none;
}

.brand-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(130deg, var(--accent), var(--accent-3));
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    box-shadow: 0 12px 25px rgba(123, 77, 255, 0.35);
}

.brand-text span {
    font-weight: 700;
    letter-spacing: 0.02em;
}

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

.main-nav {
    display: flex;
    gap: 18px;
}

.main-nav a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 14px;
    border-radius: 999px;
    transition: 0.25s;
}

.main-nav a:hover {
    color: var(--text);
    background: var(--accent-soft);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.primary-btn,
.ghost-btn {
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    padding: 10px 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: 0.25s;
}

.primary-btn {
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    color: #fff;
    box-shadow: 0 15px 35px rgba(31, 156, 235, 0.35);
}

.ghost-btn {
    border: 1px solid var(--stroke);
    color: var(--text);
    background: rgba(255, 255, 255, 0.85);
}

.primary-btn:hover {
    transform: translateY(-2px);
}

.ghost-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(123, 77, 255, 0.08);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.nav-dropdown-toggle i {
    font-size: 0.7rem;
    transition: transform 0.25s;
}

.nav-dropdown.active .nav-dropdown-toggle i {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid var(--stroke);
    border-radius: 16px;
    padding: 8px;
    min-width: 220px;
    box-shadow: 0 12px 40px rgba(15, 20, 40, 0.15);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.25s, transform 0.25s;
    z-index: 100;
}

.nav-dropdown.active .nav-dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.nav-dropdown-menu a {
    display: block;
    padding: 10px 14px;
    color: var(--text);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 500;
    transition: 0.2s;
}

.nav-dropdown-menu a:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

.header-actions .nav-dropdown-menu {
    right: 0;
    left: auto;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 6px;
}

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--text);
    display: block;
}

main {
    flex: 1;
    padding: 32px 0 80px;
}

.hero {
    padding: 64px 0 48px;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    align-items: center;
}

.hero-copy .eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-size: 0.7rem;
    color: var(--accent-3);
    margin-bottom: 18px;
}

.hero-copy h1 {
    font-size: clamp(2rem, 5vw, 3.6rem);
    line-height: 1.1;
    margin-bottom: 18px;
}

.hero-copy p {
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 540px;
    margin-bottom: 28px;
}

.hero-search {
    display: flex;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 999px;
    padding: 6px;
    gap: 10px;
}

.hero-search i {
    margin-left: 16px;
    color: var(--muted);
}

.hero-search input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 1rem;
    padding: 10px 0;
}

.hero-search input:focus {
    outline: none;
}

.hero-search button {
    border: none;
    border-radius: 999px;
    padding: 10px 18px;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(120deg, var(--accent-3), var(--accent-2));
    color: #fff;
}

.hero-tags {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-chip {
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid transparent;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: 0.2s;
}

.tag-chip:hover {
    border-color: var(--accent-3);
    color: var(--text);
}

.hero-showcase {
    padding: 24px;
    background: var(--surface-strong);
    border: 1px solid var(--stroke);
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.showcase-card {
    padding: 24px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--stroke);
    margin-bottom: 18px;
}

.showcase-card:last-child {
    margin-bottom: 0;
}

.showcase-card h3 {
    margin-bottom: 8px;
}

.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    margin-top: 24px;
}

.filter-toggle {
    display: none;
    margin: 0 0 16px;
}

.filter-panel {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 24px;
    padding: 24px;
    position: relative;
}

.filter-panel h3 {
    margin-bottom: 20px;
}

.filter-section {
    margin-bottom: 24px;
}

.filter-section:last-child {
    margin-bottom: 0;
}

.filter-section h4 {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-bottom: 12px;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.chip-list a {
    text-decoration: none;
    color: var(--text);
}

.chip {
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: var(--accent-soft);
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--muted);
    transition: 0.2s ease;
}

.chip:hover {
    border-color: var(--accent);
    color: var(--text);
    background: rgba(123, 77, 255, 0.15);
}

.filter-close {
    display: none;
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--muted);
    font-size: 1.4rem;
    cursor: pointer;
}

.list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 24px;
}

.list-head small {
    color: var(--muted);
}

.sort-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-control select {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 16px;
    padding: 8px 14px;
    color: var(--text);
}

.prompt-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
}

.prompt-card {
    background: var(--surface-strong);
    border: 1px solid var(--stroke);
    border-radius: 24px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.2s;
}

.prompt-card:hover {
    transform: translateY(-4px);
}

.card-eyebrow {
    color: var(--accent-3);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
}

.prompt-card h3 {
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.prompt-card h3 a {
    text-decoration: none;
    color: var(--text);
}

.prompt-description {
    color: var(--muted);
    font-size: 0.95rem;
}

.prompt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.prompt-tags span {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(168, 85, 247, 0.12);
    color: var(--accent-3);
    font-size: 0.8rem;
}

.prompt-ai-label {
    margin-top: 12px;
    margin-bottom: 6px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--muted);
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    color: var(--muted);
    font-size: 0.95rem;
}

.post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.post-meta.compact {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--muted);
}

.detail-meta {
    margin-top: 18px;
    font-size: 1rem;
}

.blog-hero .hero-copy h1 {
    font-size: clamp(2.4rem, 6vw, 4rem);
}

.featured-post {
    background: var(--surface-strong);
    border: 1px solid var(--stroke);
    border-radius: 28px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.featured-cover {
    min-height: 200px;
    background-size: cover;
    background-position: center;
}

.featured-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.blog-layout {
    padding: 60px 0;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.post-grid .blog-card {
    height: 100%;
}

.blog-card .card-footer {
    border-top: none;
    padding-top: 0;
}

.blog-preview {
    padding: 60px 0 90px;
}

.blog-preview .prompt-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.related-services {
    padding: 60px 0;
}

.related-services .prompt-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.prompt-builder {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin: 40px auto 80px;
}

.prompt-builder-form form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 24px;
    padding: 24px;
}

.form-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
    width: 100%;
    border: 1px solid var(--stroke);
    border-radius: 16px;
    padding: 12px 14px;
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.95);
}

.form-field textarea {
    resize: vertical;
}

.help {
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.85rem;
}

.error {
    color: #d64545;
    font-size: 0.85rem;
}

.error-banner {
    margin-top: 16px;
    padding: 14px;
    border-radius: 18px;
    border: 1px solid rgba(214, 69, 69, 0.3);
    background: rgba(214, 69, 69, 0.08);
    color: #d64545;
}

.prompt-builder-result {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 24px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--stroke);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: var(--muted);
    font-size: 1rem;
    text-align: center;
}

.prompt-output {
    background: #0f172a;
    color: #f8fafc;
    padding: 20px;
    border-radius: 18px;
    font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.related-posts {
    padding: 60px 0 80px;
}

.related-posts .post-grid {
    margin-top: 20px;
}

.breadcrumbs {
    border-bottom: 1px solid var(--stroke);
}

.breadcrumbs .container {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    font-size: 0.9rem;
    color: var(--muted);
    list-style: none;
    width: min(1200px, 100%);
    margin: 0 auto;
}

.breadcrumbs a {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.breadcrumbs .separator {
    color: var(--muted);
}

.blog-article {
    max-width: 880px;
    margin: 0 auto 80px;
}

.article-body {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 32px;
    padding: 40px;
    box-shadow: 0 40px 120px rgba(15, 20, 40, 0.08);
}

.article-cover img {
    width: 100%;
    border-radius: 26px;
    margin-bottom: 32px;
}

.article-callout {
    padding: 24px;
    border-left: 4px solid var(--accent-2);
    background: rgba(31, 156, 235, 0.08);
    border-radius: 18px;
    margin-bottom: 32px;
    color: var(--text);
    font-size: 1.05rem;
    line-height: 1.6;
}

.article-content {
    color: var(--text);
    line-height: 1.9;
    font-size: 1.05rem;
}

.article-content p {
    margin-bottom: 20px;
    color: var(--muted);
}

.article-content h2,
.article-content h3 {
    margin: 32px 0 18px;
    color: var(--text);
}

.article-content ul,
.article-content ol {
    margin: 0 0 24px 24px;
    color: var(--muted);
}

.article-content blockquote {
    margin: 24px 0;
    padding: 18px 24px;
    background: rgba(123, 77, 255, 0.08);
    border-radius: 16px;
    border-left: 4px solid var(--accent);
    font-style: italic;
}

.article-content img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    margin: 24px 0;
    box-shadow: 0 25px 80px rgba(15, 20, 40, 0.12);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin: 0 auto 80px;
}

.about-card {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 28px;
    padding: 32px;
    box-shadow: 0 30px 90px rgba(15, 20, 40, 0.08);
}

.about-card h2 {
    margin-bottom: 16px;
}

.about-card p {
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-card ul {
    padding-left: 18px;
    color: var(--muted);
    line-height: 1.7;
}

.about-section {
    background: linear-gradient(180deg, rgba(123, 77, 255, 0.05), rgba(15, 181, 169, 0.08));
    padding: 40px 0 80px;
}

.about-card .card-eyebrow {
    margin-bottom: 12px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.about-stats strong {
    font-size: 1.8rem;
    display: block;
}

.about-stats span {
    color: var(--muted);
    font-size: 0.85rem;
}

.about-card.highlight {
    background: linear-gradient(150deg, rgba(123, 77, 255, 0.12), rgba(15, 181, 169, 0.15));
    border: none;
    color: var(--text);
}

.blog-detail-hero h1 {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    border-top: 1px solid var(--stroke);
    padding-top: 14px;
}

.card-actions {
    display: flex;
    gap: 10px;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.pagination a {
    text-decoration: none;
    color: var(--text);
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--stroke);
    background: var(--surface-strong);
}

.pagination a.active {
    border-color: var(--accent);
    background: rgba(123, 77, 255, 0.15);
    color: var(--text);
}

.pagination a:hover {
    border-color: var(--accent);
}

.site-footer {
    border-top: 1px solid var(--stroke);
    padding: 48px 0 24px;
    background: rgba(255, 255, 255, 0.95);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.site-footer h4 {
    margin: 12px 0;
}

.site-footer h5 {
    margin-bottom: 12px;
}

.site-footer a {
    display: block;
    text-decoration: none;
    color: var(--muted);
    margin-bottom: 8px;
}

.site-footer a:hover {
    color: var(--accent);
}

.footer-bottom {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--stroke);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--muted);
    flex-wrap: wrap;
    gap: 12px;
}

.socials a {
    color: var(--muted);
    margin-right: 12px;
    font-size: 1.1rem;
}

@media (max-width: 1024px) {
    .catalog-layout {
        grid-template-columns: 1fr;
    }

    .filter-toggle {
        display: inline-flex;
    }

    .filter-panel {
        position: fixed;
        top: 80px;
        right: 16px;
        left: 16px;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition: 0.25s;
        z-index: 30;
    }

    .filter-panel.visible {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .filter-close {
        display: block;
    }
}

@media (max-width: 840px) {
    .main-nav {
        position: absolute;
        inset: 72px 24px auto;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid var(--stroke);
        border-radius: 16px;
        padding: 16px;
        opacity: 0;
        pointer-events: none;
        transition: 0.2s;
    }

    .main-nav.open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .header-actions {
        display: none;
    }

    .main-nav .nav-dropdown-menu {
        position: static;
        opacity: 1;
        pointer-events: auto;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 8px 0 0 16px;
        margin-top: 4px;
        display: none;
    }

    .main-nav .nav-dropdown.active .nav-dropdown-menu {
        display: block;
    }

    .main-nav .nav-dropdown-menu a {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
}

@media (max-width: 580px) {
    .hero-search {
        flex-direction: column;
        align-items: stretch;
        border-radius: 18px;
        padding: 12px;
        gap: 12px;
    }

    .hero-search i {
        display: none; /* Hide icon on mobile for cleaner layout */
    }

    .hero-search input {
        padding: 12px 16px;
        font-size: 16px; /* Prevents zoom on iOS */
        border-radius: 12px;
    }

    .hero-search button {
        width: 100%;
        padding: 12px 18px;
        margin-top: 4px;
        border-radius: 12px;
    }

    .card-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .card-actions {
        width: 100%;
    }

    .card-actions .primary-btn,
    .card-actions .ghost-btn {
        flex: 1;
        justify-content: center;
    }
}

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 32px;
    margin-top: 32px;
}

.prompt-body,
.note-card {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: 24px;
    padding: 28px;
}

.prompt-body h2 {
    margin-bottom: 16px;
}

.prompt-body p {
    color: var(--muted);
    margin-bottom: 16px;
    line-height: 1.7;
}

.prompt-body p:last-child {
    margin-bottom: 0;
}

.note-card h4 {
    margin-bottom: 12px;
}

.note-card ul {
    list-style: disc;
    padding-left: 20px;
    color: var(--muted);
}

@media (max-width: 820px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}