/* GoAI Labs Brand Stylesheet */

/* ============================================
   CSS Variables - Brand Colors & Fonts
   ============================================ */
:root {
    --color-black: #0A0A0A;
    --color-burnt-orange: #C85A2A;
    --color-warm-gray: #E8E5E0;
    --color-off-white: #FAFAF9;

    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Mono', 'SF Mono', Consolas, monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --max-width: 1200px;
    --border-radius: 4px;
    --transition: 0.2s ease;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-off-white);
    background-color: var(--color-black);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-burnt-orange);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-off-white);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

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

.text-mono {
    font-family: var(--font-mono);
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-alt {
    background-color: rgba(232, 229, 224, 0.05);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(232, 229, 224, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    color: var(--color-off-white);
}

.logo-bracket {
    font-family: var(--font-mono);
    font-weight: 400;
}

.logo-ai {
    font-family: var(--font-mono);
    font-weight: 700;
}

.logo-labs {
    font-family: var(--font-body);
    font-weight: 700;
    color: var(--color-burnt-orange);
    margin-left: 0.25rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    color: var(--color-warm-gray);
    font-size: 0.875rem;
    font-weight: 500;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background-color: var(--color-burnt-orange);
    color: var(--color-off-white);
}

.btn-primary:hover {
    background-color: #D96A3A;
    color: var(--color-off-white);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-off-white);
    border: 1px solid var(--color-warm-gray);
}

.btn-secondary:hover {
    background-color: var(--color-off-white);
    color: var(--color-black);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-page {
    min-height: 60vh;
}

.hero-container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-burnt-orange);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-warm-gray);
    margin-bottom: var(--spacing-md);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-md);
    background: rgba(232, 229, 224, 0.03);
    border: 1px solid rgba(232, 229, 224, 0.1);
    border-radius: var(--border-radius);
}

.feature-icon {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-burnt-orange);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--color-warm-gray);
    font-size: 0.9375rem;
}

/* ============================================
   Process Steps
   ============================================ */
.process-steps {
    max-width: 700px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(232, 229, 224, 0.1);
}

.process-step:last-child {
    border-bottom: none;
}

.step-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-burnt-orange);
    flex-shrink: 0;
    width: 80px;
}

.step-content h3 {
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-warm-gray);
}

/* ============================================
   Don't Grid (What We Don't Do)
   ============================================ */
.dont-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.dont-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
}

.dont-x {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--color-burnt-orange);
}

/* ============================================
   Case Studies
   ============================================ */
.case-study {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(232, 229, 224, 0.03);
    border: 1px solid rgba(232, 229, 224, 0.1);
    border-radius: var(--border-radius);
}

.case-header {
    margin-bottom: var(--spacing-md);
}

.case-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-burnt-orange);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.case-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.case-body h4 {
    font-size: 0.875rem;
    color: var(--color-warm-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.case-results ul {
    list-style: none;
}

.case-results li {
    margin-bottom: var(--spacing-xs);
}

.case-results strong {
    color: var(--color-burnt-orange);
    font-size: 1.25rem;
}

/* ============================================
   Team Section
   ============================================ */
.team-intro {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-warm-gray);
}

.team-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.value-card {
    padding: var(--spacing-md);
    background: rgba(200, 90, 42, 0.1);
    border-left: 3px solid var(--color-burnt-orange);
}

.value-card h3 {
    color: var(--color-off-white);
    margin-bottom: var(--spacing-xs);
}

.value-card p {
    color: var(--color-warm-gray);
    font-size: 0.9375rem;
}

.team-ethos {
    max-width: 800px;
    margin: 0 auto;
}

.team-ethos h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.ethos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-sm);
}

.ethos-item {
    padding: var(--spacing-sm);
    border-left: 2px solid rgba(232, 229, 224, 0.2);
}

.ethos-item p {
    color: var(--color-warm-gray);
    font-style: italic;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-warm-gray);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-off-white);
    background: rgba(232, 229, 224, 0.05);
    border: 1px solid rgba(232, 229, 224, 0.2);
    border-radius: var(--border-radius);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-burnt-orange);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(232, 229, 224, 0.4);
}

.form-success {
    text-align: center;
    padding: var(--spacing-lg);
}

.form-success h3 {
    color: var(--color-burnt-orange);
    margin-bottom: var(--spacing-sm);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-block h3 {
    font-size: 0.875rem;
    color: var(--color-warm-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.contact-block ol {
    padding-left: var(--spacing-md);
    color: var(--color-warm-gray);
}

.contact-block li {
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   CTA Section
   ============================================ */
.section-cta {
    padding: var(--spacing-xl) 0;
}

.cta-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(200, 90, 42, 0.1);
    border: 1px solid rgba(200, 90, 42, 0.3);
    border-radius: var(--border-radius);
}

.cta-box h2 {
    margin-bottom: var(--spacing-xs);
}

.cta-box p {
    color: var(--color-warm-gray);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid rgba(232, 229, 224, 0.1);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-brand {
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    color: var(--color-warm-gray);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 0.75rem;
    color: var(--color-warm-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--color-off-white);
    font-size: 0.875rem;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(232, 229, 224, 0.1);
}

.copyright {
    font-size: 0.75rem;
    color: var(--color-warm-gray);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding-top: 100px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .process-step {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .step-number {
        width: auto;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}