/* ============================================
   Pendentive Consulting - Gold Theme
   ============================================ */

/* CSS Variables */
:root {
    --color-bg: #0a0806;
    --color-bg-elevated: #141210;
    --color-bg-subtle: #1a1714;
    --color-text: #e8e4de;
    --color-text-muted: #9a9590;
    --color-text-dim: #5a5550;
    --color-accent: #E8C547;
    --color-accent-dim: rgba(232, 197, 71, 0.15);
    --color-accent-glow: rgba(232, 197, 71, 0.4);
    --color-secondary: #8b4513;
    --color-secondary-glow: rgba(139, 69, 19, 0.3);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-accent: rgba(232, 197, 71, 0.3);
    --font-display: 'IBM Plex Sans', sans-serif;
    --font-serif: 'IBM Plex Serif', Georgia, serif;
    --font-body-serif: 'IBM Plex Serif', Georgia, serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --grid-line: rgba(255, 255, 255, 0.025);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* Grid background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
}

/* Gradient orbs */
.orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: -1;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-secondary-glow) 0%, transparent 70%);
    bottom: 20%;
    left: -100px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 20px); }
}

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 0;
    background: linear-gradient(to bottom, var(--color-bg) 0%, var(--color-bg) 95%, transparent 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
}

header::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    top: calc(1.5rem - 300px + 4px);
    left: calc(50% - 550px + 2rem - 300px + 4px);
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

header .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    width: 24px;
    height: 24px;
    border-radius: 2px;
}

nav {
    display: flex;
    gap: 2.5rem;
}

nav a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text-muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s ease;
    position: relative;
}

nav a:hover,
nav a.active {
    color: var(--color-accent);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

/* ============================================
   Footer
   ============================================ */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--color-border);
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ============================================
   Home Page - Hero Section
   ============================================ */
.hero {
    padding: 8rem 0 4rem;
}

.hero-content {
    max-width: 800px;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hero-label::before {
    content: '';
    width: 40px;
    height: 1px;
    background: var(--color-accent);
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 2.5rem;
    color: var(--color-text);
}

.hero h1 .hero-subhead {
    font-size: 0.9em;
}

.hero h1 em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--color-accent);
}

.hero-intro,
.hero-text {
    font-family: var(--font-body-serif);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    max-width: 600px;
    margin-bottom: 1.5rem;
}

.hero-text strong {
    color: var(--color-text);
    font-weight: 500;
}

.hero-statement {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 600px;
}

.hero-cta {
    margin-top: 3rem;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

/* ============================================
   Home Page - Sections
   ============================================ */
section {
    padding: 5rem 0;
    position: relative;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1100px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 2rem;
    margin-bottom: 3rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

section h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

section p {
    font-family: var(--font-body-serif);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

section p:last-of-type {
    margin-bottom: 0;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    padding: 2.5rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-4px);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-dim);
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-accent);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.service-card p {
    font-family: var(--font-body-serif);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Legacy services list (for existing HTML) */
.services-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 1rem;
}

.service-item {
    padding: 2rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-item:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-4px);
}

.service-item:hover::before {
    opacity: 1;
}

.service-item h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.service-item p {
    font-family: var(--font-body-serif);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Philosophy */
.philosophy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.philosophy-main p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.philosophy-main p:first-of-type {
    font-size: 1.1rem;
    color: var(--color-text);
}

.philosophy-aside {
    padding: 2rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    position: relative;
}

.philosophy-aside::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-secondary));
    border-radius: 4px 0 0 4px;
}

.philosophy-aside h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.philosophy-aside p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.philosophy p {
    margin-bottom: 1.5rem;
}

.philosophy p:last-of-type {
    margin-bottom: 0;
}

.philosophy em {
    font-style: italic;
    color: var(--color-text);
}

/* About */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.about-main p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.about-main p:first-of-type {
    font-size: 1.1rem;
    color: var(--color-text);
}

.subsection-heading {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.credentials-list {
    list-style: none;
}

.credentials-list li {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.credentials-list li::before {
    content: '\2014';
    color: var(--color-accent);
    flex-shrink: 0;
}

/* CTA */
.cta {
    text-align: center;
    padding: 6rem 0;
}

.cta h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.cta p {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button,
.btn-primary {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-bg);
    background: var(--color-accent);
    padding: 1rem 2rem;
    border-radius: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px var(--color-accent-dim);
}

.cta-button:hover,
.btn-primary:hover {
    box-shadow: 0 0 40px var(--color-accent-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-text-muted);
    padding: 1rem 0;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    color: var(--color-text);
}

.btn-secondary::after {
    content: '\2192';
    transition: transform 0.2s ease;
}

.btn-secondary:hover::after {
    transform: translateX(4px);
}

/* ============================================
   Page Header (Writing, Reading)
   ============================================ */
.page-header {
    padding: 8rem 0 3rem;
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.page-header p {
    color: var(--color-text-muted);
    font-size: 1rem;
    max-width: 600px;
}

/* ============================================
   Writing Page - Articles
   ============================================ */
.articles {
    padding: 1.5rem 0 4rem;
}

.article-item {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
}

.article-item:first-child {
    border-top: none;
    padding-top: 0;
}

.article-item h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.article-item .subtitle {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.article-item p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.article-item a {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.article-item a:hover {
    color: var(--color-text);
}

/* ============================================
   Reading Page
   ============================================ */
.reading-section {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
}

.reading-section:first-of-type {
    border-top: none;
}

.reading-section h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.reading-list {
    display: grid;
    gap: 2rem;
}

.reading-item h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.reading-item .author {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.reading-item .author a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.reading-item .author a:hover {
    color: var(--color-text);
}

.reading-item p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

/* ============================================
   Article Page (Essays)
   ============================================ */
.article-header {
    padding: 8rem 0 1.5rem;
}

.article-header .container {
    max-width: 700px;
}

.article-header h1 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 5vw, 2.25rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.article-header .subtitle {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-text-muted);
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--color-accent);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--color-text);
}

.article-content {
    padding: 1.5rem 0 4rem;
}

.article-content .container {
    max-width: 700px;
}

.article-content p {
    font-family: var(--font-body-serif);
    font-size: 1.125rem;
    font-weight: 400;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 1.75rem;
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 3rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.article-content h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.article-content ul,
.article-content ol {
    font-family: var(--font-body-serif);
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-left: 1.5rem;
    margin-bottom: 1.75rem;
}

.article-content li {
    margin-bottom: 0.75rem;
}

.article-content em {
    font-style: italic;
    color: var(--color-accent);
}

.article-content strong {
    font-weight: 600;
    color: var(--color-text);
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 3rem 0;
}

/* Tables (markdown-generated and .comparison-table) */
.article-content table,
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.85rem;
}

.article-content th,
.article-content td,
.comparison-table th,
.comparison-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.article-content th,
.comparison-table th {
    font-family: var(--font-display);
    font-weight: 500;
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
}

.article-content th:first-child,
.article-content td:first-child,
.comparison-table th:first-child,
.comparison-table td:first-child {
    font-weight: 500;
    color: var(--color-text);
}

/* Blockquotes */
.article-content blockquote {
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    background: var(--color-bg-elevated);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 4px 4px 0;
}

.article-content blockquote p {
    font-family: var(--font-body-serif);
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 0;
}

/* Code blocks */
.article-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-bg-elevated);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    color: var(--color-accent);
}

.article-content pre {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    color: var(--color-text-muted);
}

/* Links in articles */
.article-content a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-content a:hover {
    color: var(--color-text);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-label { animation: fadeUp 0.6s ease forwards; animation-delay: 0.1s; opacity: 0; }
.hero h1 { animation: fadeUp 0.6s ease forwards; animation-delay: 0.2s; opacity: 0; }
.hero-intro,
.hero-text { animation: fadeUp 0.6s ease forwards; animation-delay: 0.3s; opacity: 0; }
.hero-cta { animation: fadeUp 0.6s ease forwards; animation-delay: 0.4s; opacity: 0; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .philosophy-content,
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid,
    .services-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 1.5rem;
    }

    header {
        padding: 2rem 0 1rem;
    }

    header::before {
        left: -150px;
        top: calc(2rem - 300px + 4px);
    }

    section {
        padding: 3rem 0;
    }

    .hero {
        padding: 9rem 0 3rem;
    }

    .cta {
        padding: 4rem 0;
    }

    .page-header {
        padding: 7rem 0 2rem;
    }

    .articles {
        padding: 1rem 0 3rem;
    }

    .reading-section {
        padding: 1.5rem 0;
    }

    .article-header {
        padding: 7rem 0 1rem;
    }

    .article-content {
        padding: 1rem 0 3rem;
    }

    footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .comparison-table {
        font-size: 0.75rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-header {
        flex-direction: column;
        gap: 0.5rem;
    }
}