/* ============================================
   PEIRCEAN - A Logic Harness for Abductive Inference
   Aesthetic inspired by Hegelion
   ============================================ */

/* CSS Variables */
:root {
    --bg-primary: #f5f5f0;
    --bg-secondary: #e8e8e3;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent: #1a1a1a;
    --border: #1a1a1a;

    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.1;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.7;
}

/* ============================================
   HEADER
   ============================================ */

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--bg-primary);
}

.header-logo {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1em;
}

.header-nav {
    display: flex;
    gap: var(--space-md);
}

.header-nav a {
    font-size: 12px;
    letter-spacing: 0.05em;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-xl) var(--space-lg);
    padding-top: calc(var(--space-xl) + 60px);
    background-color: var(--bg-secondary);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    gap: var(--space-lg);
}

.hero-left {
    flex: 1;
    max-width: 600px;
}

.version-badge {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--border);
    margin-bottom: var(--space-md);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 400;
    font-style: italic;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    padding-left: var(--space-md);
    border-left: 2px solid var(--border);
}

.hero-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.hero-divider {
    width: 1px;
    height: 400px;
    border-left: 1px dashed var(--border);
    opacity: 0.5;
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    width: 100%;
    max-width: 350px;
}

.abduction-logo {
    width: 100%;
    height: auto;
}

/* ============================================
   PROCESS SECTION
   ============================================ */

.process {
    padding: var(--space-xl) var(--space-lg);
    border-top: 1px solid var(--border);
}

.section-header {
    max-width: 1200px;
    margin: 0 auto var(--space-lg);
}

.section-label {
    display: block;
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-style: italic;
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.process-step {
    text-align: center;
}

.step-box {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    margin-bottom: var(--space-sm);
    transition: all 0.3s ease;
}

.step-box:hover {
    transform: scale(1.05);
}

.step-box-outline {
    background-color: transparent;
}

.step-box-filled {
    background-color: var(--accent);
}

.step-box-filled .step-label {
    color: var(--bg-primary);
}

.step-label {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1em;
}

.step-description {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 150px;
}

.process-arrow {
    font-size: 24px;
    color: var(--text-secondary);
}

/* ============================================
   QUOTE SECTION
   ============================================ */

.quote-section {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-secondary);
    text-align: center;
}

.peirce-quote {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-style: italic;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto var(--space-md);
}

.quote-cite {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

/* ============================================
   TOOLS SECTION
   ============================================ */

.tools {
    padding: var(--space-xl) var(--space-lg);
    border-top: 1px solid var(--border);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.tool-card {
    padding: var(--space-md);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.tool-card:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
}

.tool-phase {
    font-size: 10px;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.tool-name {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.tool-desc {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.tool-output {
    font-size: 12px;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    padding: var(--space-xs) var(--space-sm);
    display: inline-block;
}

/* ============================================
   COUNCIL SECTION
   ============================================ */

.council {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-secondary);
}

.critics-grid {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.critic-card {
    text-align: center;
    padding: var(--space-md);
    min-width: 140px;
}

.critic-icon {
    width: 60px;
    height: 60px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    font-family: var(--font-serif);
    font-size: 24px;
    font-style: italic;
    transition: all 0.3s ease;
}

.critic-card:hover .critic-icon {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.critic-name {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.critic-focus {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

/* ============================================
   QUICKSTART SECTION
   ============================================ */

.quickstart {
    padding: var(--space-xl) var(--space-lg);
    border-top: 1px solid var(--border);
}

.quickstart-content {
    max-width: 800px;
    margin: 0 auto;
}

.install-step {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    align-items: flex-start;
}

.step-number {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 30px;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.step-content pre {
    background-color: var(--accent);
    color: var(--bg-primary);
    padding: var(--space-md);
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
}

.step-content code {
    font-family: var(--font-mono);
}

/* ============================================
   DOCS SECTION
   ============================================ */

.docs {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-secondary);
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-sm);
    max-width: 800px;
    margin: 0 auto;
}

.doc-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border: 1px solid var(--border);
    background-color: var(--bg-primary);
    transition: all 0.2s ease;
}

.doc-link:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.doc-title {
    font-size: 14px;
}

.doc-arrow {
    font-size: 18px;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto var(--space-lg);
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-right {
    text-align: right;
}

.footer-credit {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.footer-credit a {
    text-decoration: underline;
}

.footer-quote {
    font-family: var(--font-serif);
    font-size: 13px;
    font-style: italic;
    color: var(--text-secondary);
    max-width: 400px;
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    font-size: 12px;
    color: var(--text-secondary);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
    max-width: 1200px;
    margin: 0 auto;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 900px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-left {
        max-width: 100%;
    }

    .hero-tagline {
        border-left: none;
        padding-left: 0;
        border-top: 2px solid var(--border);
        padding-top: var(--space-md);
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-divider {
        width: 100px;
        height: 1px;
        border-left: none;
        border-top: 1px dashed var(--border);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-right {
        text-align: center;
    }
}

@media (max-width: 600px) {
    :root {
        --space-lg: 2rem;
        --space-xl: 4rem;
    }

    .header {
        padding: var(--space-sm);
    }

    .header-nav {
        gap: var(--space-sm);
    }

    .process-steps {
        flex-direction: column;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

    .critics-grid {
        flex-direction: column;
        align-items: center;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-left,
.hero-right,
.section-header,
.process-steps,
.tools-grid,
.critics-grid {
    animation: fadeIn 0.8s ease-out;
}