/* ============================================
   Cornmill Agentics — Stylesheet
   Bio-mimetic AI Agent Systems
   ============================================ */

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

:root {
    /* Palette — dark with organic green accent */
    --bg-primary: #0a0f0d;
    --bg-secondary: #111a16;
    --bg-tertiary: #162019;
    --bg-card: #1a2620;
    --bg-card-hover: #1f2e27;

    --text-primary: #e8ede9;
    --text-secondary: #9aaa9f;
    --text-muted: #6b7e72;

    --accent: #4ecb71;
    --accent-dim: #3a9955;
    --accent-glow: rgba(78, 203, 113, 0.15);
    --accent-glow-strong: rgba(78, 203, 113, 0.25);

    --border: rgba(78, 203, 113, 0.12);
    --border-strong: rgba(78, 203, 113, 0.25);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --section-pad: clamp(4rem, 8vw, 7rem);
    --container-max: 1140px;

    /* Transitions */
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

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

a:hover {
    color: #6fdf8f;
}

img {
    max-width: 100%;
    display: block;
}

/* --- Container --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: background 0.3s var(--ease), padding 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}

.nav.scrolled {
    background: rgba(10, 15, 13, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-brand:hover {
    color: var(--text-primary);
}

.nav-brand strong {
    color: var(--accent);
}

.nav-logo {
    font-size: 1.4rem;
    opacity: 0.8;
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.2s var(--ease);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: all 0.25s var(--ease);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: #6fdf8f;
    color: var(--bg-primary);
    box-shadow: 0 0 30px var(--accent-glow-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    color: #6fdf8f;
    border-color: var(--accent-dim);
}

.btn-large {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 6rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, var(--accent-glow) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 80% 20%, rgba(78, 203, 113, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

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

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

.hero-eyebrow a {
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-strong);
}

.hero-eyebrow a:hover {
    color: var(--accent);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-subtitle em {
    color: var(--accent);
    font-style: normal;
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* --- Inline links --- */
.inline-link {
    font-weight: 600;
    border-bottom: 1px solid var(--border-strong);
    padding-bottom: 1px;
}

.inline-link:hover {
    border-bottom-color: var(--accent);
}

/* --- Sections --- */
.section {
    padding: var(--section-pad) 0;
}

.section-header {
    margin-bottom: 3.5rem;
}

.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.section-desc {
    margin-top: 1rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

/* --- Philosophy --- */
.section-philosophy {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.philosophy-lead {
    font-size: 1.15rem;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.philosophy-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.philosophy-text p strong {
    color: var(--accent);
}

.philosophy-text p em {
    color: var(--text-primary);
}

.philosophy-principles {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.principle {
    padding: 1.5rem;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.principle:hover {
    border-color: var(--border-strong);
    box-shadow: 0 0 30px var(--accent-glow);
}

.principle-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.principle h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.principle p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Parallels --- */
.section-parallels {
    border-bottom: 1px solid var(--border);
}

.parallels-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.parallel {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.parallel:hover {
    border-color: var(--border-strong);
    box-shadow: 0 0 40px var(--accent-glow);
}

.parallel-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 0.5rem;
}

.parallel h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.parallel p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.parallel-arrow {
    font-size: 1.5rem;
    color: var(--accent);
    opacity: 0.6;
}

/* --- System Flow --- */
.section-system {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.system-flow {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.flow-step {
    flex: 1;
    padding: 2rem 1.5rem;
    text-align: center;
    position: relative;
}

.flow-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.3;
    margin-bottom: 1rem;
}

.flow-step h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.flow-step p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.flow-connector {
    width: 40px;
    min-width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
    margin-top: 3.5rem;
}

/* --- Capabilities --- */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.capability {
    padding: 1.75rem;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: all 0.3s var(--ease);
}

.capability:hover {
    border-color: var(--border-strong);
    background: var(--bg-card);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-2px);
}

.capability-icon {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.capability h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.capability p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Research Applications --- */
.section-research {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.research-intro {
    max-width: 780px;
    margin-bottom: 3rem;
}

.research-intro p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.research-intro strong {
    color: var(--accent);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 3.5rem;
}

.research-card {
    padding: 2rem;
    border-radius: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    transition: all 0.3s var(--ease);
}

.research-card:hover {
    border-color: var(--border-strong);
    box-shadow: 0 0 30px var(--accent-glow);
}

.research-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.research-icon {
    font-size: 1.4rem;
}

.research-card h3 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.research-card > p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.research-example {
    padding: 1rem 1.25rem;
    border-radius: 6px;
    background: var(--bg-primary);
    border-left: 3px solid var(--accent-dim);
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.research-example span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: block;
    margin-bottom: 0.35rem;
}

/* Research method */
.research-method {
    padding: 2.5rem;
    border-radius: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
}

.research-method > h3 {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

.method-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.method-step {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.method-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-glow-strong);
    border: 1px solid var(--accent-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
}

.method-step h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.method-step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Case Study --- */
.section-case-study {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.case-study-content {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 3rem;
    align-items: start;
}

.newspaper-masthead {
    border: 2px solid var(--border-strong);
    border-radius: 8px;
    padding: 2px;
    margin-bottom: 2rem;
}

.masthead-inner {
    background: var(--bg-tertiary);
    border-radius: 6px;
    padding: 1.75rem;
    text-align: center;
    border: 1px solid var(--border);
}

.masthead-edition {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.5rem;
}

.masthead-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.masthead-tagline {
    font-style: italic;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.case-study-lead {
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.case-study-body p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.case-study-body .btn {
    margin-top: 0.5rem;
}

.case-study-stats {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.stat {
    padding: 1.5rem;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    text-align: center;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* --- CTA --- */
.section-cta {
    text-align: center;
    padding: calc(var(--section-pad) * 1.2) 0;
    position: relative;
}

.section-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.cta-title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--border);
    padding: 2.5rem 0;
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.footer-brand strong {
    color: var(--accent);
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.footer-text a {
    color: var(--text-secondary);
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
    opacity: 0.6;
}

/* --- Scroll animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 15, 13, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem);
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .system-flow {
        flex-direction: column;
        gap: 0;
    }

    .flow-connector {
        width: 2px;
        height: 30px;
        min-width: unset;
        margin: 0 auto;
        background: linear-gradient(180deg, transparent, var(--accent-dim), transparent);
    }

    .flow-step {
        padding: 1.5rem;
    }

    .parallel {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .parallel-arrow {
        transform: rotate(90deg);
        text-align: center;
    }

    .research-grid {
        grid-template-columns: 1fr;
    }

    .method-steps {
        grid-template-columns: 1fr 1fr;
    }

    .research-method {
        padding: 1.5rem;
    }

    .case-study-content {
        grid-template-columns: 1fr;
    }

    .case-study-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .stat {
        flex: 1;
        min-width: 120px;
    }

    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
        padding: 7rem 0 4rem;
    }
}