/* nestorjuarez.vispires.com - Global styles (Sift-inspired palette) */
@font-face {
  font-family: "Oswald Bold";
  src: url("../fonts/Oswald-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Oswald Medium";
  src: url("../fonts/Oswald-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Sift-inspired: Sift Blue, Sift Navy, neutrals */
  --color-bg: #00124d;
  --color-surface: #0a1a5c;
  --color-border: #1e3a7e;
  --color-text: #ffffff;
  --color-text-muted: #a5b8e0;
  --color-accent: #2e69ff;
  --color-accent-hover: #5c8aff;
  /* Sift brand accents: Excellence Mint, Value Gold, Uplift Pink */
  --color-mint: #79f7c6;
  --color-mint-soft: rgba(121, 247, 198, 0.2);
  --color-gold: #ffca36;
  --color-gold-soft: rgba(255, 202, 54, 0.2);
  --color-pink: #ff3b84;
  --color-pink-soft: rgba(255, 59, 132, 0.2);
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-heading: "Titillium Web", var(--font-sans);
  --font-logo: "Oswald Bold", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --radius: 8px;
  --header-h: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1,
h2,
h3,
.page-title,
.hero h1 {
  font-family: var(--font-heading);
}

.hero-title {
  font-family: "Oswald Medium", var(--font-heading);
}

/* Header & nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(0, 18, 77, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: var(--font-logo);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-logo .logo-first {
  margin-right: 1.25rem;
  display: inline-block;
}

.site-logo .logo-last {
  display: inline-block;
}

.site-logo:hover {
  color: var(--color-accent);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: var(--radius);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-text);
  background: var(--color-surface);
}

.site-nav a.active {
  color: var(--color-accent);
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition:
      transform 0.2s,
      opacity 0.2s,
      visibility 0.2s;
  }

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

  .site-nav ul {
    flex-direction: column;
  }

  .site-nav a {
    padding: 0.75rem 1rem;
  }
}

/* Main content */
main {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
}

/* Hero (Home) */
.hero {
  text-align: center;
  padding: 3rem 0 4rem;
  position: relative;
  background: linear-gradient(
    165deg,
    var(--color-bg) 0%,
    #0a1a5c 40%,
    rgba(121, 247, 198, 0.04) 70%,
    rgba(255, 59, 132, 0.03) 100%
  );
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.hero .tagline {
  font-size: 1.125rem;
  color: #00BFFF;
  font-weight: 600;
  margin: 0 0 2rem;
  letter-spacing: 0.02em;
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  padding-left: 1.75rem;
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.2s,
    background 0.2s;
  border-left: 4px solid var(--color-border);
}

.card:nth-child(1) {
  border-left-color: var(--color-accent);
}
.card:nth-child(2) {
  border-left-color: var(--color-mint);
}
.card:nth-child(3) {
  border-left-color: var(--color-gold);
}
.card:nth-child(4) {
  border-left-color: var(--color-pink);
}

.card:hover {
  border-left-width: 4px;
}
.card:nth-child(1):hover {
  border-left-color: var(--color-accent);
  background: rgba(46, 105, 255, 0.12);
}
.card:nth-child(2):hover {
  border-left-color: var(--color-mint);
  background: var(--color-mint-soft);
}
.card:nth-child(3):hover {
  border-left-color: var(--color-gold);
  background: var(--color-gold-soft);
}
.card:nth-child(4):hover {
  border-left-color: var(--color-pink);
  background: var(--color-pink-soft);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}
.card:nth-child(1) h3 {
  color: var(--color-accent);
}
.card:nth-child(2) h3 {
  color: var(--color-mint);
}
.card:nth-child(3) h3 {
  color: var(--color-gold);
}
.card:nth-child(4) h3 {
  color: var(--color-pink);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Page title */
.page-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-left: 1rem;
  border-left: 4px solid var(--color-accent);
}

/* Sections */
.section {
  margin-bottom: 2.5rem;
}

.section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--color-text);
  padding-left: 0.75rem;
  border-left: 4px solid var(--color-accent);
}

.section:nth-of-type(3n + 2) h2 {
  border-left-color: var(--color-mint);
}
.section:nth-of-type(3n + 3) h2 {
  border-left-color: var(--color-gold);
}
.section:nth-of-type(3n + 1) h2 {
  border-left-color: var(--color-accent);
}

.section p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}

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

/* API endpoints */
.endpoint {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.endpoint .method {
  display: inline-block;
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-weight: 600;
  margin-right: 0.75rem;
}

.endpoint .method.get {
  background: #238636;
  color: #fff;
}
.endpoint .method.post {
  background: #1f6feb;
  color: #fff;
}
.endpoint .method.put {
  background: #9e6a03;
  color: #fff;
}
.endpoint .method.delete {
  background: #da3633;
  color: #fff;
}

/* Code / pre */
pre,
code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
}

code {
  background: var(--color-surface);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* Contact form */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  max-width: 400px;
  padding: 0.6rem 0.75rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

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

.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-bg);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s;
}

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

/* CTA */
.cta {
  margin-top: 2rem;
  text-align: center;
}

.cta a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.cta a:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 1.5rem 1.5rem 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  background: linear-gradient(
    0deg,
    var(--color-bg) 0%,
    rgba(0, 18, 77, 0.98) 100%
  );
}

.site-footer a {
  color: var(--color-mint);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Architecture diagram placeholder */
.diagram-placeholder {
  background: linear-gradient(
    135deg,
    var(--color-surface) 0%,
    rgba(121, 247, 198, 0.06) 100%
  );
  border: 1px dashed var(--color-border);
  border-left: 4px solid var(--color-mint);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Architecture / technical images */
.arch-image {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin: 1rem 0 1.5rem;
  display: block;
}

.arch-image-wrap {
  margin: 1rem 0 1.5rem;
}

.arch-image-wrap figcaption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

/* Lists */
ul.bullet-list {
  padding-left: 1.25rem;
  margin: 0.5rem 0;
}

ul.bullet-list li {
  margin-bottom: 0.35rem;
  color: var(--color-text-muted);
}

ul.links {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul.links li {
  margin-bottom: 0.5rem;
}

ul.links a {
  color: var(--color-accent);
  text-decoration: none;
}

ul.links a:hover {
  text-decoration: underline;
}

/* Hero author & capabilities */
.hero .author {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

.hero .capabilities {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem 1.5rem;
}

.hero .capabilities li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.hero .capability-icon {
  display: block;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 2rem;
}

.hero-actions .btn {
  text-decoration: none;
}

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

.btn-outline:hover {
  background: rgba(46, 105, 255, 0.2);
}

.hero-actions .btn-ghost-mint {
  background: transparent;
  color: #00cc66;
  border: 1px solid #00cc66;
}
.hero-actions .btn-ghost-mint:hover {
  background: var(--color-mint-soft);
  color: #00cc66;
}

.hero-actions .btn-ghost-gold {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
}
.hero-actions .btn-ghost-gold:hover {
  background: var(--color-gold-soft);
  color: var(--color-gold);
}

/* Feature / highlights table */
.feature-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.feature-table th,
.feature-table td {
  padding: 0.75rem 1rem;
  padding-left: 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.feature-table th {
  color: var(--color-text);
  font-weight: 600;
  background: var(--color-surface);
}

.feature-table td {
  color: var(--color-text-muted);
}

.feature-table td:first-child {
  font-weight: 500;
  color: var(--color-text);
}

.feature-table tbody tr td:first-child {
  border-left: 3px solid transparent;
  padding-left: 1rem;
}
.feature-table tbody tr:nth-child(3n + 1) td:first-child {
  border-left-color: var(--color-mint);
}
.feature-table tbody tr:nth-child(3n + 2) td:first-child {
  border-left-color: var(--color-gold);
}
.feature-table tbody tr:nth-child(3n + 3) td:first-child {
  border-left-color: var(--color-pink);
}

.feature-table tr:hover td {
  background: rgba(46, 105, 255, 0.08);
}
.feature-table tbody tr:nth-child(3n + 1):hover td:first-child {
  background: var(--color-mint-soft);
}
.feature-table tbody tr:nth-child(3n + 2):hover td:first-child {
  background: var(--color-gold-soft);
}
.feature-table tbody tr:nth-child(3n + 3):hover td:first-child {
  background: var(--color-pink-soft);
}

/* Lifecycle / status lists */
.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 1rem 0;
}

.lifecycle-block h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}
.lifecycle-block:nth-child(1) h3 {
  color: var(--color-accent);
}
.lifecycle-block:nth-child(2) h3 {
  color: var(--color-mint);
}
.lifecycle-block:nth-child(3) h3 {
  color: var(--color-gold);
}
.lifecycle-block:nth-child(4) h3 {
  color: var(--color-pink);
}

.lifecycle-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.lifecycle-block li {
  padding: 0.2rem 0;
}

/* About author block */
.about-author {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-pink);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.about-author h2 {
  margin-top: 0;
}

/* CTA link variety */
.cta a.cta-mint {
  color: var(--color-mint);
}
.cta a.cta-mint:hover {
  color: var(--color-gold);
}
.cta a.cta-gold {
  color: var(--color-gold);
}
.cta a.cta-gold:hover {
  color: var(--color-mint);
}
.cta a.cta-pink {
  color: var(--color-pink);
}
.cta a.cta-pink:hover {
  color: var(--color-gold);
}

/* Light page theme (e.g. architecture.html) */
body.page-light {
  --color-bg: #ffffff;
  --color-surface: #f5f5f7;
  --color-border: #e0e0e6;
  --color-text: #1a1a2e;
  --color-text-muted: #5a5a72;
  --color-mint-soft: rgba(121, 247, 198, 0.25);
  --color-gold-soft: rgba(255, 202, 54, 0.25);
  --color-pink-soft: rgba(255, 59, 132, 0.15);
}

body.page-light .site-header {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--color-border);
}

body.page-light .site-logo {
  color: var(--color-text);
}

body.page-light .site-logo:hover {
  color: var(--color-accent);
}

body.page-light .site-nav a {
  color: var(--color-text-muted);
}

body.page-light .site-nav a:hover,
body.page-light .site-nav a.active {
  color: var(--color-text);
  background: var(--color-surface);
}

body.page-light .site-nav a.active {
  color: var(--color-accent);
}

body.page-light .nav-toggle {
  color: var(--color-text);
}

body.page-light .site-footer {
  background: #fafafa;
  border-top-color: var(--color-border);
  color: var(--color-text-muted);
}

body.page-light .site-footer a {
  color: var(--color-accent);
}

body.page-light .site-footer a:hover {
  color: var(--color-accent-hover);
}

body.page-light .hero {
  background: linear-gradient(165deg, #ffffff 0%, #f8f9fa 50%, #f0f4ff 100%);
}