/* ===================================================
   Portfolio - Christian Moreno
   Tech-Brutalist / Editorial Web3 Design System
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

/* ---------- Custom Properties ---------- */
:root {
  /* Typography */
  --font-display: 'Instrument Serif', serif;
  --font-mono:    'Space Mono', monospace;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  2rem;
  --space-xl:  4rem;
  --space-2xl: 8rem;

  /* Layout */
  --container-max: 1400px;
}

/* Black Theme (Default) */
html {
  --clr-bg:          #0a0a0c;
  --clr-surface:     #121214;
  --clr-border:      #333333;
  --clr-text:        #ffffff;
  --clr-text-muted:  #a1a1aa;
  --clr-accent:      #0044ff; /* Electric Blue */
}

/* Explicit Black Theme */
html[data-bg="black"] {
  --clr-bg:          #0a0a0c;
  --clr-surface:     #121214;
  --clr-border:      #333333;
  --clr-text:        #ffffff;
  --clr-text-muted:  #a1a1aa;
  --clr-accent:      #0044ff; /* Electric Blue */
}

/* White Theme */
html[data-bg="white"] {
  --clr-bg:          #fafafa;
  --clr-surface:     #ffffff;
  --clr-border:      #d1d1d1;
  --clr-text:        #111111;
  --clr-text-muted:  #777777;
  --clr-accent:      #0044ff; /* Electric Blue */
}

/* Electric Blue Theme */
html[data-bg="blue"] {
  --clr-bg:          #0044ff;
  --clr-surface:     #003ce6;
  --clr-border:      rgba(255, 255, 255, 0.3);
  --clr-text:        #ffffff;
  --clr-text-muted:  rgba(255, 255, 255, 0.7);
  --clr-accent:      #0a0a0c; /* Black Accent */
}

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

html {
  font-family: var(--font-mono);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.5;
  scroll-behavior: smooth;
  font-size: 16px;
  /* Smooth transitions for theme switching */
  transition: background-color 0.8s ease, color 0.8s ease;
}

body {
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.4s ease;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

/* Transitions for elements that use border color or text color */
* {
  transition: border-color 0.8s ease;
}
.text-accent, .nav__logo, .nav__link::before, .nav__link::after, .btn::before, .btn::after, .text-muted, .nav__link {
  transition: color 0.8s ease;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, .font-display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.text-huge {
  font-size: clamp(4rem, 10vw, 10rem);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.text-xl {
  font-size: clamp(2.5rem, 5vw, 5rem);
}

.text-mono-sm {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.text-accent {
  color: var(--clr-accent);
}

.text-muted {
  color: var(--clr-text-muted);
}

.text-italic {
  font-style: italic;
  padding-bottom: 0.2em; /* italic descender clearance */
}

/* ---------- Layout & Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background-color: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background-color 0.8s ease, border-color 0.8s ease;
}

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

.nav__links {
  display: flex;
  gap: var(--space-lg);
}

.nav__link:hover {
  color: var(--clr-accent);
}

.nav__link::before { content: "[ "; color: var(--clr-text-muted); }
.nav__link::after { content: " ]"; color: var(--clr-text-muted); }
.nav__link:hover::before, .nav__link:hover::after { color: var(--clr-accent); }

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--space-2xl);
  border-bottom: 1px solid var(--clr-border);
}

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

.hero__eyebrow {
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
}

.hero__sub {
  max-width: 50ch;
  margin-top: var(--space-md);
  color: var(--clr-text-muted);
}

/* ---------- Sections ---------- */
.section {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--clr-border);
}

.section__chapter {
  display: block;
  font-size: clamp(3rem, 8vw, 6rem);
  color: var(--clr-border);
  line-height: 1;
  margin-bottom: var(--space-lg);
}

/* Grid Layouts */
.grid-50-50 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}
@media (min-width: 768px) {
  .grid-50-50 { grid-template-columns: 1fr 1fr; }
}

.grid-border {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--clr-border);
  border-left: 1px solid var(--clr-border);
}
@media (min-width: 768px) {
  .grid-border { grid-template-columns: repeat(3, 1fr); }
}

.grid-border > div {
  border-right: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--space-lg);
}

/* List Items (Brutalist Rows) */
.row-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--clr-border);
}
.row-item:first-child { border-top: 1px solid var(--clr-border); }

@media (min-width: 768px) {
  .row-item {
    grid-template-columns: 300px 1fr;
  }
}

.row-item__meta {
  color: var(--clr-text-muted);
}

/* ---------- Buttons & CTAs ---------- */
.btn {
  display: inline-block;
  padding: var(--space-md) 0;
  text-transform: uppercase;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--clr-text);
  border-bottom: 1px solid var(--clr-accent);
  transition: color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  flex: 0 0 auto;
}

.btn:hover {
  color: var(--clr-accent);
  border-bottom-color: transparent;
}

.btn::before { content: "[ "; color: var(--clr-accent); }
.btn::after { content: " ]"; color: var(--clr-accent); }

.hero__actions {
  flex-wrap: wrap;
  align-items: center;
}

@media (max-width: 767px) {
  .hero__actions {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: var(--space-sm) !important;
  }
}

/* ---------- Utilities ---------- */
.uppercase { text-transform: uppercase; }
.text-center { text-align: center; }

/* HTMX Loading Indicator */
.htmx-indicator {
  display: none;
  font-family: var(--font-mono);
  color: var(--clr-accent);
  padding: var(--space-md) 0;
}
.htmx-request .htmx-indicator {
  display: block;
}

/* Form Alerts */
.form__alert {
  padding: var(--space-md);
  margin-top: var(--space-md);
  border: 1px solid var(--clr-border);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--clr-surface);
}
.form__alert--error {
  color: #ff3333;
  border-color: #ff3333;
}
.form__alert--success {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}

/* Footer */
.footer {
  padding: var(--space-xl) 0;
  text-align: center;
  font-family: var(--font-mono);
  color: var(--clr-text-muted);
  font-size: 0.875rem;
}

/* Mobile Nav Adjustments */
@media (max-width: 767px) {
  .nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--clr-bg);
    border-bottom: 1px solid var(--clr-border);
    padding: var(--space-md);
  }
  .nav__links.open {
    display: flex;
  }
  .nav__actions {
    display: block !important;
  }
}