/* ================================
   Vociferous AI — Stylesheet
   Premium consulting aesthetic
   ================================ */

:root {
    /* Colors */
    --color-bg: #fafafa;
    --color-bg-alt: #f0f0f0;
    --color-bg-dark: #1a1a1a;
    --color-text: #1a1a1a;
    --color-text-muted: #666;
    --color-text-light: #999;
    --color-accent: #0066cc;
    --color-accent-hover: #0052a3;
    --color-border: #e0e0e0;
    --color-border-dark: #333;
    
    /* Typography */
    --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-xxl: 8rem;
    
    /* Sizing */
    --max-width: 1200px;
    --max-width-narrow: 800px;
}

/* ================================
   Reset + Base
   ================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    line-height: 1.25;
    font-weight: 600;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.01em;
    margin-bottom: var(--space-md);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
}

p:last-child {
    margin-bottom: 0;
}

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

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

ul {
    list-style: none;
}

strong {
    font-weight: 600;
}

/* ================================
   Navigation
   ================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-links a {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

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

.nav-cta {
    background: var(--color-text);
    color: var(--color-bg) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    font-weight: 500;
}

.nav-cta:hover {
    background: var(--color-accent) !important;
    color: white !important;
}

/* ================================
   Hero
   ================================ */

.hero {
    padding: calc(var(--space-xxl) + 60px) var(--space-md) var(--space-xxl);
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.hero-content h1 {
    margin-bottom: var(--space-md);
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    max-width: 680px;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.2s ease;
}

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

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

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

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

.hero-note {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    font-style: italic;
}

/* ================================
   Trust Strip
   ================================ */

.trust {
    background: var(--color-bg-alt);
    padding: var(--space-lg) var(--space-md);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.trust-inner {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.trust h2 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    color: var(--color-text-muted);
}

.trust-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.trust-item {
    display: flex;
    gap: var(--space-sm);
    align-items: baseline;
}

.trust-marker {
    font-family: var(--font-mono);
    color: var(--color-text-light);
    flex-shrink: 0;
}

.trust-item p {
    margin: 0;
}

/* ================================
   Services
   ================================ */

.services {
    padding: var(--space-xl) var(--space-md);
}

.services-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-md);
}

.service-card {
    padding: var(--space-md);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: border-color 0.2s ease;
}

.service-card:hover {
    border-color: var(--color-text-light);
}

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

.service-card p {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* ================================
   Engagements
   ================================ */

.engagements {
    background: var(--color-bg-dark);
    color: var(--color-bg);
    padding: var(--space-xl) var(--space-md);
}

.engagements-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.engagements h2 {
    color: var(--color-bg);
}

.engagements-intro {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.engagements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.engagement-card {
    padding: var(--space-md);
    border: 1px solid var(--color-border-dark);
    border-radius: 4px;
}

.engagement-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: block;
    margin-bottom: var(--space-sm);
}

.engagement-card h3 {
    color: var(--color-bg);
    margin-bottom: var(--space-xs);
}

.engagement-timeline {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-sm);
}

.engagement-card p {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* ================================
   Selected Work
   ================================ */

.work {
    padding: var(--space-xl) var(--space-md);
}

.work-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.work-card {
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: 4px;
}

.work-card h3 {
    font-size: 1.125rem;
}

.work-card p {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.work-card ul {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-sm);
}

.work-card li {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.25rem;
}

.work-card li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--color-text-light);
}

.work-ethics {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    padding: var(--space-sm) var(--space-md);
    background: white;
    border-left: 3px solid var(--color-border);
    max-width: var(--max-width-narrow);
}

/* ================================
   Process
   ================================ */

.process {
    background: var(--color-bg-alt);
    padding: var(--space-xl) var(--space-md);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.process-inner {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.process-step {
    display: flex;
    gap: var(--space-sm);
    align-items: baseline;
}

.process-num {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-light);
    flex-shrink: 0;
    width: 1.5rem;
}

.process-step p {
    margin: 0;
}

/* ================================
   About
   ================================ */

.about {
    padding: var(--space-xl) var(--space-md);
}

.about-inner {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.about-inner p {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

.about-links {
    margin-top: var(--space-md);
    display: flex;
    gap: var(--space-md);
}

.about-links a {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
}

/* ================================
   Contact
   ================================ */

.contact {
    background: var(--color-bg-dark);
    color: var(--color-bg);
    padding: var(--space-xl) var(--space-md);
}

.contact-inner {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.contact h2 {
    color: var(--color-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-lg);
    align-items: start;
}

.contact-brief h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
}

.contact-brief ul {
    color: var(--color-text-light);
}

.contact-brief li {
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.25rem;
}

.contact-brief li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-text-light);
}

.contact-email {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--color-bg) !important;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border-dark);
    border-radius: 4px;
    display: inline-block;
    transition: all 0.2s ease;
}

.contact-email:hover {
    border-color: var(--color-accent);
    color: var(--color-accent) !important;
}

/* ================================
   Footer
   ================================ */

.footer {
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border-dark);
    padding: var(--space-md);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.footer-copy {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ================================
   Responsive
   ================================ */

@media (max-width: 768px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
        --space-xxl: 5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        padding-top: calc(var(--space-lg) + 60px);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-action {
        margin-top: var(--space-sm);
    }
}

@media (max-width: 480px) {
    body {
        font-size: 1rem;
    }
    
    .hero-sub {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        text-align: center;
    }
}