/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  /* Colors */
  --color-navy:        #1a3a5c;
  --color-navy-light:  #234e7d;
  --color-gold:        #c9973a;
  --color-gold-dark:   #a87a28;
  --color-off-white:   #f9f7f4;
  --color-white:       #ffffff;
  --color-text:        #1a1a1a;
  --color-text-light:  #3d3d3d;
  --color-muted:       #767676;
  --color-disabled:    #999999;
  --color-video-bg:    #2a2a2a;

  /* Typography */
  --font-body:    'Atkinson Hyperlegible', Georgia, serif;
  --font-heading: 'Nunito', 'Segoe UI', sans-serif;

  --text-base:   1.125rem;   /* 18px */
  --text-sm:     0.9375rem;  /* 15px */

  /* Fluid heading sizes using clamp(min, preferred, max) */
  --text-h1: clamp(2rem,    5vw + 1rem, 3.5rem);
  --text-h2: clamp(1.5rem,  3vw + 0.75rem, 2.25rem);
  --text-h3: clamp(1.2rem,  2vw + 0.6rem,  1.6rem);

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.75rem;
  --space-lg:  3rem;
  --space-xl:  5rem;

  /* Layout */
  --container-max: 72rem;
  --reading-max:   68ch;

  /* Focus ring */
  --focus-color:  #c9973a;
  --focus-width:  3px;
  --focus-offset: 3px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  /* Nav height — used to offset scroll targets */
  --nav-height: 4rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 100%; /* 16px base */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  letter-spacing: 0.015em;
  word-spacing: 0.05em;
  color: var(--color-text);
  background-color: var(--color-off-white);
  min-height: 100vh;
}

/* Offset anchor targets so sticky nav doesn't cover headings */
[id] {
  scroll-margin-top: calc(var(--nav-height) + var(--space-sm));
}

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

ul,
ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration-skip-ink: auto;
}

/* ============================================================
   Focus Styles — never suppress, always visible
   ============================================================ */
:focus {
  outline: var(--focus-width) solid var(--focus-color);
  outline-offset: var(--focus-offset);
}

/* Only show on keyboard navigation, not mouse clicks */
:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: var(--focus-width) solid var(--focus-color);
  outline-offset: var(--focus-offset);
  border-radius: 3px;
}

/* ============================================================
   Skip Link
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 0 0 6px 6px;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ============================================================
   Site Header & Navigation
   ============================================================ */
.site-header {
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
}

/* Sticky nav wrapper */
.sticky-nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 0 var(--space-md);
  height: var(--nav-height);
  background: var(--color-navy);
  border-bottom: 2px solid var(--color-gold);
}

.site-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-white);
  white-space: nowrap;
}

.site-name-link {
  text-decoration: none;
  color: inherit;
  display: inline-block;
}

.site-name-link:hover .site-name {
  color: var(--color-gold);
  transition: color var(--transition-fast);
}

/* Hamburger button */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.4rem;
  background: transparent;
  border: 2px solid var(--color-gold);
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

/* Animated X when open */
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.primary-nav {
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-navy);
  border-bottom: 2px solid var(--color-gold);
  transform: translateY(-110%);
  opacity: 0;
  visibility: hidden;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.primary-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.primary-nav ul {
  display: flex;
  flex-direction: column;
  padding: var(--space-sm) 0;
}

.primary-nav a {
  display: block;
  padding: 0.875rem var(--space-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-white);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--color-gold);
  border-left-color: var(--color-gold);
  background-color: rgba(255, 255, 255, 0.05);
  outline: none;
}

/* Desktop nav — ≥768px */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    transition: none;
  }

  .primary-nav ul {
    flex-direction: row;
    gap: 0.25rem;
    padding: 0;
    align-items: center;
  }

  .primary-nav a {
    padding: 0.5rem 0.875rem;
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: 4px 4px 0 0;
    font-size: 1rem;
  }

  .primary-nav a:hover,
  .primary-nav a:focus-visible {
    border-left-color: transparent;
    border-bottom-color: var(--color-gold);
    background-color: rgba(255, 255, 255, 0.08);
  }
}

/* ============================================================
   Hero Content
   ============================================================ */
.hero-content {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  max-width: var(--container-max);
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

.hero-tagline {
  font-size: clamp(1.1rem, 2vw + 0.5rem, 1.5rem);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: center;
  width: 100%;
  display: block;
  margin-inline: auto;
}

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

.section {
  padding-block: var(--space-lg);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-xl);
  }
}

.section--light {
  background-color: var(--color-off-white);
  color: var(--color-text);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* ============================================================
   Typography — Headings
   ============================================================ */
h2 {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

h3 {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

/* ============================================================
   Typography — Body Paragraphs
   ============================================================ */
p {
  max-width: var(--reading-max);
  margin-bottom: calc(var(--text-base) * 1.7 * 1.5);
  text-align: left;
}

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

/* Section with navy bg — ensure readable p color */
.section--navy p {
  color: rgba(255, 255, 255, 0.92);
}

/* ============================================================
   About Nathan Section
   ============================================================ */
.about-nathan-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
}

.about-nathan-image {
  flex-shrink: 0;
}

.headshot-img {
  width: clamp(8rem, 30vw, 12rem);
  height: clamp(8rem, 30vw, 12rem);
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 4px solid var(--color-gold);
  box-shadow: 0 4px 20px rgba(26, 58, 92, 0.15);
}

.founder-caption {
  text-align: center;
  margin-top: var(--space-sm);
}

.founder-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-white);
  margin-bottom: 0.25rem;
  max-width: none;
}

.founder-title {
  font-size: var(--text-sm);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 0;
  max-width: none;
}

.about-nathan-text h2 {
  margin-top: 0;
}

@media (min-width: 768px) {
  .about-nathan-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-xl);
  }

  .about-nathan-image {
    /* Keep image from shrinking below its natural size */
    min-width: clamp(8rem, 20vw, 12rem);
  }
}

/* ============================================================
   Mission Blockquote
   ============================================================ */
.mission-quote {
  margin-block: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-off-white);
  border-left: 5px solid var(--color-gold);
  border-radius: 0 8px 8px 0;
  box-shadow: 0 2px 8px rgba(26, 58, 92, 0.08);
  display: block;
  width: auto;
}

.mission-quote p {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 700;
  color: var(--color-navy);
  font-style: normal;
  margin-bottom: 0;
  max-width: none;
  text-align: left;
}

/* ============================================================
   Video Section
   ============================================================ */
.video-wrapper {
  width: 100%;
  max-width: 50rem;
}

/* 16:9 aspect ratio container */
.video-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-video-bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-muted);
}

.video-placeholder-text {
  color: var(--color-off-white);
  font-family: var(--font-heading);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  font-weight: 600;
  text-align: center;
  padding: var(--space-md);
  max-width: 32ch;
  margin-bottom: 0;
}

/* ============================================================
   Callout Box
   ============================================================ */
.callout {
  padding: var(--space-md) var(--space-lg);
  border-radius: 8px;
  margin-block: var(--space-lg);
}

.callout--gold {
  background-color: var(--color-gold);
  color: var(--color-navy);
  border-left: 5px solid var(--color-gold-dark);
}

.callout p {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  margin-bottom: 0;
  color: var(--color-navy);
}

/* ============================================================
   Contact Section
   ============================================================ */
.contact-list {
  margin-bottom: var(--space-lg);
}

.contact-item {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: baseline;
  margin-bottom: var(--space-sm);
  font-size: var(--text-base);
}

.contact-label {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-navy);
  flex-shrink: 0;
}

.contact-link {
  color: var(--color-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-gold-dark);
}

.contact-link:focus-visible {
  outline-color: var(--color-navy);
}

/* ============================================================
   Social Icons
   ============================================================ */
.social-icons {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.social-icon-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--color-navy);
  color: var(--color-white);
  text-decoration: none;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.social-icon-link:hover {
  background-color: var(--color-navy-light);
  transform: translateY(-2px);
}

.social-icon-link:focus-visible {
  outline: var(--focus-width) solid var(--focus-color);
  outline-offset: var(--focus-offset);
}

.social-icon {
  width: 1.375rem;
  height: 1.375rem;
  fill: currentColor;
}

/* Disabled state for coming-soon icons */
.social-icon-link--disabled {
  background-color: #e0ddd9;
  color: var(--color-disabled);
  cursor: default;
}

.social-icon-link--disabled:hover {
  background-color: #e0ddd9;
  transform: none;
}

/* Tooltip */
.tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-navy);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-family: var(--font-heading);
  font-weight: 600;
  white-space: nowrap;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

/* Arrow on tooltip */
.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-navy);
}

.social-icon-link--disabled:hover .tooltip,
.social-icon-link--disabled:focus-visible .tooltip {
  opacity: 1;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background-color: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding-block: var(--space-lg);
  border-top: 3px solid var(--color-gold);
}

.site-footer p {
  max-width: none;
  margin-inline: auto;
  text-align: center;
  margin-bottom: 0.5rem;
  font-size: var(--text-sm);
}

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

.footer-location {
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   Responsive — 1024px
   ============================================================ */
@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-lg);
  }

  .hero-content {
    padding-block: calc(var(--space-xl) * 1.4);
  }
}

/* ============================================================
   Scroll To Top Button
   ============================================================ */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 200;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--color-navy);
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(26, 58, 92, 0.3);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-base), transform var(--transition-base), background-color var(--transition-fast);
  pointer-events: none;
}

.scroll-top-btn:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top-btn:hover {
  background-color: var(--color-navy-light);
}

.scroll-top-btn svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

/* ============================================================
   Changelog Page
   ============================================================ */
.changelog-content {
  max-width: var(--reading-max);
  padding-block: var(--space-lg);
}

.changelog-loading,
.changelog-error {
  color: var(--color-muted);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  padding: var(--space-md) 0;
}

.footer-changelog {
  margin-top: var(--space-xs);
}

.footer-link {
  color: var(--color-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
}

.footer-link:hover {
  color: var(--color-white);
}

/* ============================================================
   Print Stylesheet
   ============================================================ */
@media print {
  *,
  *::before,
  *::after {
    background: #fff !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  .site-header .header-inner,
  .primary-nav,
  .nav-toggle,
  .skip-link,
  .video-wrapper,
  .callout,
  .social-icons {
    display: none !important;
  }

  .hero-content {
    padding-block: 1rem;
  }

  .hero-title {
    font-size: 2rem;
    color: #000 !important;
  }

  .hero-tagline {
    color: #333 !important;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #555 !important;
  }

  /* Don't print href for anchor links */
  a[href^="#"]::after {
    content: '';
  }

  .section {
    padding-block: 1.5rem;
  }

  .section--navy {
    background: #fff !important;
    color: #000 !important;
  }

  .mission-quote {
    border-left: 4px solid #000 !important;
    background: #f5f5f5 !important;
  }

  .contact-section,
  #contact {
    page-break-inside: avoid;
  }

  .site-footer {
    border-top: 1px solid #000 !important;
    background: #fff !important;
  }
}