/* ============================================
   Theoretically Impossible Solutions
   Main Stylesheet
   ============================================ */

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

:root {
  --color-bg: #fafaf8;
  --color-bg-alt: #f0eeeb;
  --color-text: #2c2c2c;
  --color-text-light: #5a5a5a;
  --color-accent: #3a5a7c;
  --color-accent-dark: #2a4460;
  --color-accent-light: #4a7aac;
  --color-border: #d8d4cf;
  --color-white: #ffffff;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1100px;
  --max-width-narrow: 760px;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg) url('../images/logo-watermark.png') no-repeat center center;
  background-size: 120vh;
  background-attachment: fixed;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

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

/* --- Header & Navigation --- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--color-text);
}

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

.site-brand img {
  width: 48px;
  height: 48px;
  border-radius: 6px;
}

.site-brand-text {
  display: flex;
  flex-direction: column;
}

.site-brand-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.2;
}

.site-brand-tagline {
  font-size: 0.75rem;
  color: var(--color-text-light);
  letter-spacing: 0.03em;
}

.site-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.site-nav a {
  color: var(--color-text-light);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.site-nav a.btn--primary {
  color: var(--color-white);
  border-bottom: none;
}

.site-nav a.btn--primary:hover {
  color: var(--color-white);
  border-bottom: none;
}

/* RSS icon in nav */
.rss-link {
  display: inline-flex;
  align-items: center;
  margin-left: -1.5rem;
}

.rss-link svg {
  width: 14px;
  height: 14px;
  fill: var(--color-text-light);
  transition: fill 0.2s ease;
}

.rss-link:hover svg {
  fill: var(--color-accent);
}

.rss-link--footer svg {
  width: 13px;
  height: 13px;
  fill: rgba(255, 255, 255, 0.9);
  vertical-align: -1px;
}

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

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero Section --- */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
}

.hero .lead {
  font-size: 1.2rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

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

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

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

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

/* --- Section Styles --- */
.section {
  padding: 4rem 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-light);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* --- What We Do (Services) --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2rem;
  transition: box-shadow 0.2s ease;
}

.service-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.service-card-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* --- Philosophy / Quote Block --- */
.philosophy {
  text-align: center;
  padding: 4rem 0;
}

.philosophy blockquote {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 650px;
  margin: 0 auto 1rem;
}

.philosophy .attribution {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* --- Blog Preview --- */
.blog-preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.blog-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.blog-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-card-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.blog-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card h3 a {
  color: var(--color-text);
}

.blog-card h3 a:hover {
  color: var(--color-accent);
}

.blog-card p {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.blog-card .read-more {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
}

/* --- Blog Post Page --- */
.post-header {
  padding: 4rem 0 2rem;
  text-align: center;
  background: var(--color-bg);
}

.post-header h1 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.post-meta {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.post-content {
  padding: 2rem 0 4rem;
  background: var(--color-bg);
}

.post-content p {
  margin-bottom: 1.5rem;
}

.post-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
}

.post-content h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin: 2rem 0 0.75rem;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: var(--color-bg-alt);
  border-radius: 0 6px 6px 0;
  font-style: italic;
  color: var(--color-text-light);
}

.post-content ul, .post-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

/* --- About Page --- */
.about-hero {
  padding: 5rem 0 3rem;
  text-align: center;
}

.about-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  margin-bottom: 1rem;
}

.about-hero .lead {
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.about-content {
  padding: 2rem 0 4rem;
}

.about-content p {
  margin-bottom: 1.5rem;
}

.about-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
}

.specialties-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.specialties-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 1rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.specialties-list li:last-child {
  border-bottom: none;
}

.specialties-list .spec-marker {
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0;
  text-align: center;
  font-size: 0.85rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

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

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.5);
}

/* --- SITREP Section --- */
.sitrep-feed {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.sitrep-entry {
  border-left: 3px solid var(--color-accent);
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  margin-bottom: 2rem;
  background: var(--color-white);
  border-radius: 0 8px 8px 0;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.2s ease;
}

.sitrep-entry:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.sitrep-entry-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.sitrep-entry-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  white-space: nowrap;
}

.sitrep-entry h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  line-height: 1.4;
}

.sitrep-entry h3 a {
  color: var(--color-text);
}

.sitrep-entry h3 a:hover {
  color: var(--color-accent);
}

.sitrep-entry p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.sitrep-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.sitrep-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(58, 90, 124, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.sitrep-entry .read-more {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

/* SITREP post page */
.sitrep-post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.85);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  z-index: 200;
  flex-wrap: wrap;
}

.cookie-banner p {
  margin: 0;
  max-width: 600px;
  line-height: 1.5;
}

.cookie-banner a {
  color: rgba(255, 255, 255, 0.95);
  text-decoration: underline;
}

.cookie-banner button {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease;
}

.cookie-banner button:hover {
  background: var(--color-accent-dark);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .section {
    padding: 3rem 0;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--color-border);
    gap: 0.5rem;
  }

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

  .nav-toggle {
    display: block;
  }

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

  .rss-link {
    margin-left: 0;
  }

  .blog-preview-list {
    grid-template-columns: 1fr;
  }

  .post-header h1 {
    font-size: 1.8rem;
  }
}