/* Mesa Point v2 - Institutional Operating Brief */
/* No animations, no gradients, no embellishment */

:root {
    --color-black: #0A0A0A;
    --color-white: #FFFFFF;
    --color-gray: #71717A;
    --color-border: #E5E5E5;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-regular: 400;
    --font-weight-semibold: 600;
    
    --container-width: 1120px;
    --spacing-unit: 1rem;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    color: var(--color-black);
    background: var(--color-white);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.25rem;
}

p {
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Layout */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo img {
    display: block;
    height: 24px;
}

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

.nav-link {
    font-size: 0.9375rem;
    color: var(--color-gray);
}

.nav-link.active {
    color: var(--color-black);
}

/* Main Content */
main {
    padding-top: 4rem;
}

/* Hero Section */
.hero {
    padding: 6rem 0 5rem;
}

.hero-title {
    margin-bottom: 2rem;
}

.title-line {
    display: block;
}

.hero-body {
    max-width: 48rem;
    margin-bottom: 2.5rem;
}

.hero-body p {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.hero-body p:last-child {
    margin-bottom: 0;
}

/* Page Header */
.page-header {
    padding: 6rem 0 3rem;
}

.page-title {
    margin-bottom: 2rem;
}

.page-intro {
    max-width: 48rem;
}

.page-intro p {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.page-intro p:last-child {
    margin-bottom: 0;
}

/* Content Sections */
.content-section {
    padding: 4rem 0;
    border-top: 1px solid var(--color-border);
}

.section-heading {
    margin-bottom: 2rem;
}

.subsection-heading {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.prose {
    max-width: 48rem;
}

.prose p {
    margin-bottom: 1.25rem;
}

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

.prose-large p {
    font-size: 1.125rem;
}

.intro-text {
    font-size: 1.0625rem;
    margin-bottom: 1.5rem;
}

/* Block Grid */
.block-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.block-item {
    max-width: 40rem;
}

.block-title {
    margin-bottom: 0.75rem;
}

.block-item p {
    color: var(--color-black);
    line-height: 1.7;
}

/* Numbered List */
.numbered-list {
    margin-top: 3rem;
}

.numbered-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
}

.numbered-item:last-child {
    margin-bottom: 0;
}

.number {
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9375rem;
}

.numbered-item .content {
    flex: 1;
    padding-top: 0.25rem;
}

.item-title {
    margin-bottom: 0.75rem;
}

/* Simple List */
.simple-list {
    list-style: none;
    max-width: 48rem;
}

.simple-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.simple-list li:before {
    content: "•";
    position: absolute;
    left: 0;
}

/* Phase List */
.phase-list {
    margin-top: 2rem;
}

.phase-item {
    margin-bottom: 2.5rem;
}

.phase-item:last-child {
    margin-bottom: 0;
}

.phase-title {
    margin-bottom: 0.75rem;
}

.phase-item p {
    max-width: 48rem;
    line-height: 1.7;
}

/* Boundary Statement */
.boundary-statement {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--color-border);
}

.boundary-statement p {
    font-weight: var(--font-weight-semibold);
    max-width: 48rem;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    border-top: 1px solid var(--color-border);
}

.cta-content {
    max-width: 48rem;
}

.cta-text {
    font-size: 1.25rem;
    line-height: 1.5;
    margin-bottom: 2rem;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: var(--color-black);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9375rem;
    border: none;
    cursor: pointer;
}

/* Contact Page */
.contact-container {
    max-width: 36rem;
}

.contact-info {
    margin-bottom: 3rem;
}

.contact-email {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
}

.contact-form-wrapper {
    border-top: 1px solid var(--color-border);
    padding-top: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

.optional {
    font-weight: var(--font-weight-regular);
    color: var(--color-gray);
}

.form-group input,
.form-group textarea {
    font-family: var(--font-family);
    font-size: 1rem;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-black);
}

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

.form-group textarea {
    resize: vertical;
    line-height: 1.6;
}

.contact-form button {
    align-self: flex-start;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 4rem;
    margin-bottom: 2rem;
}

.footer-brand img {
    display: block;
    height: 24px;
    margin-bottom: 0.75rem;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-gray);
    max-width: 20rem;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.footer-contact {
    display: flex;
    align-items: flex-start;
}

.email-link {
    font-size: 0.875rem;
    color: var(--color-black);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

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

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.625rem;
    }
    
    .main-nav {
        gap: 1.25rem;
    }
    
    .nav-link {
        font-size: 0.875rem;
    }
    
    .hero {
        padding: 4rem 0 3rem;
    }
    
    .page-header {
        padding: 4rem 0 2rem;
    }
    
    .content-section {
        padding: 3rem 0;
    }
    
    .numbered-item {
        gap: 1.25rem;
    }
    
    .number {
        width: 2rem;
        height: 2rem;
        font-size: 0.875rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cta-section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .header-content {
        height: 3.5rem;
    }
    
    .logo img {
        height: 20px;
    }
    
    main {
        padding-top: 3.5rem;
    }
    
    .main-nav {
        gap: 1rem;
    }
}