/* ---- Design tokens ------------------------------------------------------ */
:root {
  /* Surfaces */
  --bg-void: #0f0d0a;
  --bg-surface: #17140f;
  --bg-surface-hover: #1f1a13;
  --bg-inset: #0b0a08;
  --border: #2a251c;
  --border-bright: #3d3524;

  /* Text */
  --fg-primary: #f2ead8;
  --fg-secondary: #b7ab95;
  --fg-muted: #786c5a;

  /* Accents */
  --accent: #ffb000; /* phosphor amber — signature color */
  --accent-dim: #b8830a;
  --accent-teal: #6fbfae; /* links, strings, secondary accent */
  --diff-add: #7ec699;
  --diff-remove: #e0766c;

  /* Type */
  --font-mono:
    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-sans:
    "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Scale */
  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.875rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --step-1: clamp(1.125rem, 1.06rem + 0.35vw, 1.3rem);
  --step-2: clamp(1.4rem, 1.28rem + 0.6vw, 1.75rem);
  --step-3: clamp(1.85rem, 1.6rem + 1.2vw, 2.5rem);
  --step-4: clamp(2.4rem, 1.9rem + 2.4vw, 3.75rem);

  --radius: 4px;
  --radius-sm: 2px;
  --maxw: 1120px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.5s;
}

/* ---- Reset ---------------------------------------------------------------*/
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
html {
  -webkit-text-size-adjust: 100%;
  color-scheme: dark;
}
html,
body {
  height: 100%;
}
body {
  font-family: var(--font-sans);
  background: var(--bg-void);
  color: var(--fg-primary);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(
      ellipse 900px 600px at 15% -10%,
      rgba(255, 176, 0, 0.06),
      transparent 60%
    ),
    radial-gradient(
      ellipse 700px 500px at 100% 20%,
      rgba(111, 191, 174, 0.05),
      transparent 60%
    );
  background-attachment: fixed;
}
img,
picture,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
  color: inherit;
}
ul,
ol {
  list-style: none;
  padding: 0;
}
h1,
h2,
h3,
h4 {
  font-family: var(--font-mono);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

::selection {
  background: var(--accent);
  color: var(--bg-void);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

html {
  scroll-behavior: smooth;
}
::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}
::-webkit-scrollbar-track {
  background: var(--bg-void);
}
::-webkit-scrollbar-thumb {
  background: var(--border-bright);
  border: 2px solid var(--bg-void);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dim);
}

/* ---- Layout helpers ------------------------------------------------------*/
.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}
.section-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--accent);
  color: var(--bg-void);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 600;
  z-index: 200;
  transition: top 0.2s var(--ease);
}
.skip-link:focus {
  top: 1rem;
}

/* ---- Section furniture ---------------------------------------------------*/
.section-head {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.section-path {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent-teal);
  display: flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 0.85rem;
}
.section-path::before {
  content: "#";
  color: var(--fg-muted);
}
.section-title {
  font-size: var(--step-3);
  color: var(--fg-primary);
}
.section-sub {
  margin-top: 0.6rem;
  color: var(--fg-secondary);
  font-size: var(--step-0);
  max-width: 60ch;
}

/* ---- Terminal window chrome (used for nav + code-style panels) -----------*/
.term-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.term-titlebar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.85rem;
  background: var(--bg-inset);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
}
.term-dots {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}
.term-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}
.term-dots span:nth-child(1) {
  background: #e0766c;
}
.term-dots span:nth-child(2) {
  background: #ffb000;
}
.term-dots span:nth-child(3) {
  background: #7ec699;
}
.term-path {
  flex: 1;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- Site header / nav ----------------------------------------------------*/
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.85rem var(--gutter);
  background: rgba(15, 13, 10, 0.82);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--fg-primary);
}
.brand .dots {
  display: flex;
  gap: 0.3rem;
}
.brand .dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.brand .dots span:nth-child(1) {
  background: #e0766c;
}
.brand .dots span:nth-child(2) {
  background: #ffb000;
}
.brand .dots span:nth-child(3) {
  background: #7ec699;
}
.brand-path {
  color: var(--fg-muted);
}
.brand-path .seg-current {
  color: var(--accent);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 1.6rem;
}
.nav-links a {
  color: var(--fg-secondary);
  position: relative;
  padding: 0.2rem 0;
  transition: color 0.2s;
}
.nav-links a::before {
  content: "~/";
  color: var(--fg-muted);
}
.nav-links a:hover,
.nav-links a.is-active {
  color: var(--accent);
}
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--accent);
}
.nav-cta {
  display: none;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--bg-void);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition:
    transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 176, 0, 0.25);
}

.nav-toggle {
  display: inline-flex;
  background: none;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.6rem;
  color: var(--fg-primary);
  cursor: pointer;
}
@media (min-width: 860px) {
  .nav-links {
    display: flex;
  }
  .nav-cta {
    display: inline-flex;
  }
  .nav-toggle {
    display: none;
  }
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg-void);
  padding: 6rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  transform: translateY(-100%);
  transition: transform 0.35s var(--ease);
}
.mobile-menu.is-open {
  transform: translateY(0);
}
.mobile-menu a {
  color: var(--fg-secondary);
}
.mobile-menu a::before {
  content: "~/";
  color: var(--fg-muted);
}
.mobile-menu .nav-cta {
  display: inline-flex;
  margin-top: 1rem;
  align-self: flex-start;
}

/* ---- Hero -----------------------------------------------------------------*/
.hero {
  padding-block: clamp(3rem, 9vw, 6rem) clamp(2.5rem, 7vw, 5rem);
}
.hero-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: start;
}
.hero-kicker {
  font-family: var(--font-mono);
  color: var(--accent-teal);
  font-size: var(--step--1);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hero-kicker .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--diff-add);
  box-shadow: 0 0 0 0 rgba(126, 198, 153, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(126, 198, 153, 0.55);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(126, 198, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(126, 198, 153, 0);
  }
}
.hero-title {
  font-size: var(--step-4);
  color: var(--fg-primary);
}
.hero-title .accent {
  color: var(--accent);
}
.hero-role {
  font-family: var(--font-mono);
  color: var(--fg-secondary);
  font-size: var(--step-1);
  margin-top: 0.9rem;
}
.hero-desc {
  margin-top: 1.25rem;
  color: var(--fg-secondary);
  max-width: 56ch;
  font-size: var(--step-0);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 600;
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-bright);
  background: var(--bg-surface);
  color: var(--fg-primary);
  cursor: pointer;
  transition:
    transform 0.2s var(--ease),
    border-color 0.2s,
    background 0.2s,
    box-shadow 0.2s var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent-dim);
  background: var(--bg-surface-hover);
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-void);
  border-color: var(--accent);
}
.btn-primary:hover {
  box-shadow: 0 8px 24px rgba(255, 176, 0, 0.25);
  color: var(--fg-primary);
}
.btn-whatsapp {
  border-color: #3fae5c55;
}
.btn-whatsapp:hover {
  border-color: #3fae5c;
  box-shadow: 0 8px 24px rgba(63, 174, 92, 0.18);
}
.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ---- Mini CLI (hero signature element) ------------------------------------*/
.cli {
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.cli-body {
  padding: 1.1rem 1.15rem 1.3rem;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cli-line {
  color: var(--fg-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}
.cli-line .prompt {
  color: var(--accent-teal);
}
.cli-line .prompt-user {
  color: var(--accent);
}
.cli-out {
  color: var(--fg-secondary);
}
.cli-out .k {
  color: var(--accent-teal);
}
.cli-hint {
  color: var(--fg-muted);
  margin-top: auto;
  padding-top: 0.75rem;
  font-size: var(--step--1);
}
.cli-input-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-top: 1px solid var(--border);
  padding: 0.7rem 1.15rem;
  background: var(--bg-inset);
}
.cli-input-row .prompt {
  color: var(--accent);
  flex-shrink: 0;
}
.cli-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--fg-primary);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  caret-color: var(--accent);
}
.cli-input:focus {
  outline: none;
}
.cursor-blink {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent);
  animation: blink 1s steps(1) infinite;
  vertical-align: text-bottom;
  margin-left: 2px;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

/* ---- Prose block (about / cat about.md) -----------------------------------*/
.prose-term .term-body {
  padding: 1.4rem clamp(1.1rem, 3vw, 1.8rem);
}
.prose {
  color: var(--fg-secondary);
  font-size: var(--step-0);
  max-width: 68ch;
}
.prose p + p {
  margin-top: 1rem;
}
.prose strong {
  color: var(--fg-primary);
  font-weight: 600;
}
.about-grid {
  display: grid;
  gap: 2.5rem;
}
.about-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.fact {
  padding: 0.85rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.fact .fk {
  color: var(--fg-muted);
  display: block;
  margin-bottom: 0.3rem;
}
.fact .fv {
  color: var(--fg-primary);
}
@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: start;
  }
}

/* ---- Experience: git log timeline -----------------------------------------*/
.gitlog {
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.gitlog .term-body {
  padding: 0.4rem 0;
}
.commit {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 0.9rem;
  padding: 1.1rem clamp(1.1rem, 3vw, 1.8rem);
  border-bottom: 1px solid var(--border);
}
.commit:last-child {
  border-bottom: none;
}
.commit-graph {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.commit-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 6px;
  flex-shrink: 0;
}
.commit-line {
  width: 1px;
  flex: 1;
  background: var(--border-bright);
  margin-top: 4px;
}
.commit-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}
.commit-hash {
  color: var(--accent-teal);
}
.commit-role {
  color: var(--fg-primary);
  font-weight: 600;
  font-size: var(--step-0);
}
.commit-meta {
  color: var(--fg-muted);
  font-size: var(--step--1);
  margin-bottom: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
}
.commit-body {
  color: var(--fg-secondary);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  max-width: 68ch;
}
.commit-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  color: var(--fg-muted);
}
.commit-tag.is-current {
  color: var(--diff-add);
  border-color: #7ec69955;
}

/* ---- Skills: package.json style --------------------------------------------*/
.skills-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
.skill-group {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
}
.skill-group h3 {
  font-size: var(--step--1);
  color: var(--accent-teal);
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.skill-group h3::before {
  content: '"';
  color: var(--fg-muted);
}
.skill-group h3::after {
  content: '":';
  color: var(--fg-muted);
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-tag {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-primary);
  background: var(--bg-inset);
  border: 1px solid var(--border-bright);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  transition:
    border-color 0.2s,
    color 0.2s,
    transform 0.2s var(--ease);
}
.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
@media (min-width: 700px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Projects: repo cards ---------------------------------------------------*/
.repo-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
.repo-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition:
    transform 0.25s var(--ease),
    border-color 0.25s,
    background 0.25s;
  position: relative;
}
.repo-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-dim);
  background: var(--bg-surface-hover);
}
.repo-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
}
.repo-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--fg-primary);
  font-size: var(--step-0);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.repo-name svg {
  width: 15px;
  height: 15px;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.repo-visibility {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  flex-shrink: 0;
}
.repo-desc {
  color: var(--fg-secondary);
  font-size: var(--step--1);
  line-height: 1.6;
  flex: 1;
}
.repo-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fg-muted);
  flex-wrap: wrap;
}
.lang-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.4rem;
}
.repo-link {
  color: var(--accent-teal);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.repo-card:hover .repo-link {
  color: var(--accent);
}

.repo-card.is-empty {
  border-style: dashed;
  align-items: flex-start;
  justify-content: center;
  min-height: 190px;
  color: var(--fg-muted);
  background: transparent;
}
.repo-card.is-empty:hover {
  transform: none;
  border-color: var(--border-bright);
  background: transparent;
}
.repo-card.is-empty .comment {
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  line-height: 1.7;
}
.repo-card.is-empty .comment .c {
  color: #55503f;
}

@media (min-width: 700px) {
  .repo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .repo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Testimonials -------------------------------------------------------*/
.quote-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}
.quote-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
}
.quote-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fg-muted);
  margin-bottom: 0.8rem;
}
.quote-tag .c {
  color: var(--fg-muted);
}
.quote-body {
  color: var(--fg-primary);
  font-size: var(--step-0);
  line-height: 1.7;
  font-style: normal;
}
.quote-body::before {
  content: "\201C";
  color: var(--accent);
  font-size: 1.4em;
  line-height: 0;
  vertical-align: -0.35em;
  margin-right: 0.15em;
}
.quote-who {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-secondary);
}
.quote-who .role {
  color: var(--fg-muted);
}
@media (min-width: 700px) {
  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Blog preview list ---------------------------------------------------*/
.post-log {
  font-family: var(--font-mono);
}
.post-log .term-body {
  padding: 0.2rem 0;
}
.post-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 1.05rem clamp(1.1rem, 3vw, 1.8rem);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.post-row:last-child {
  border-bottom: none;
}
.post-row:hover {
  background: var(--bg-surface-hover);
}
.post-row-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1rem;
}
.post-date {
  color: var(--fg-muted);
  font-size: var(--step--1);
}
.post-title {
  color: var(--fg-primary);
  font-weight: 600;
  font-size: var(--step-0);
}
.post-row:hover .post-title {
  color: var(--accent);
}
.post-excerpt {
  color: var(--fg-secondary);
  font-family: var(--font-sans);
  font-size: var(--step--1);
  max-width: 68ch;
}
.post-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
}
.post-tag {
  font-size: 0.72rem;
  color: var(--accent-teal);
}
.post-tag::before {
  content: "#";
}

/* ---- Contact ---------------------------------------------------------------*/
.contact-panel {
  text-align: left;
}
.contact-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  transition:
    transform 0.2s var(--ease),
    border-color 0.2s,
    background 0.2s;
}
.contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-dim);
  background: var(--bg-surface-hover);
}
.contact-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-inset);
  border: 1px solid var(--border-bright);
  color: var(--accent);
}
.contact-icon svg {
  width: 20px;
  height: 20px;
}
.contact-copy .cmd {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--accent-teal);
  margin-bottom: 0.2rem;
}
.contact-copy .val {
  font-family: var(--font-mono);
  font-size: var(--step-0);
  color: var(--fg-primary);
  font-weight: 600;
}
.contact-copy .sub {
  font-size: var(--step--1);
  color: var(--fg-muted);
  margin-top: 0.15rem;
}
@media (min-width: 700px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Footer ---------------------------------------------------------------*/
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem;
}
.footer-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
}
.footer-inner a {
  color: var(--fg-secondary);
}
.footer-inner a:hover {
  color: var(--accent);
}
.footer-links {
  display: flex;
  gap: 1.25rem;
}

/* ---- WhatsApp floating action button --------------------------------------*/
.fab-whatsapp {
  position: fixed;
  right: clamp(1rem, 4vw, 2rem);
  bottom: clamp(1rem, 4vw, 2rem);
  z-index: 90;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #25d366;
  color: #06210f;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
  transition:
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.fab-whatsapp:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 14px 36px rgba(37, 211, 102, 0.45);
}
.fab-whatsapp svg {
  width: 26px;
  height: 26px;
}

/* ---- Scroll-to-top FAB -----------------------------------------------------*/
.fab-top {
  position: fixed;
  right: clamp(1rem, 4vw, 2rem);
  bottom: calc(clamp(1rem, 4vw, 2rem) + 64px);
  z-index: 90;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-surface);
  color: var(--accent);
  border: 1px solid var(--border-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 0.25s var(--ease),
    transform 0.25s var(--ease),
    border-color 0.25s var(--ease),
    color 0.25s var(--ease);
  cursor: pointer;
}
.fab-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.fab-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.fab-top:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
  .fab-top {
    transition: opacity 0.2s;
  }
}

/* ---- Scroll reveal ---------------------------------------------------------*/
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s var(--ease),
    transform 0.7s var(--ease);
  transition-delay: calc(var(--i, 0) * 70ms);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Blog post / article typography ----------------------------------------*/
.article-header {
  padding-block: clamp(2.5rem, 7vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem);
}
.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.breadcrumb a {
  color: var(--accent-teal);
}
.breadcrumb .sep {
  color: var(--fg-muted);
}
.article-title {
  font-size: var(--step-3);
  color: var(--fg-primary);
  max-width: 24ch;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
}
.article-meta strong {
  color: var(--fg-secondary);
  font-weight: 500;
}
.article-body {
  max-width: 68ch;
  color: var(--fg-secondary);
  font-size: var(--step-0);
  line-height: 1.75;
}
.article-body h2 {
  font-size: var(--step-2);
  color: var(--fg-primary);
  margin-top: 2.4em;
  margin-bottom: 0.7em;
}
.article-body h3 {
  font-size: var(--step-1);
  color: var(--fg-primary);
  margin-top: 1.9em;
  margin-bottom: 0.6em;
}
.article-body p {
  margin-top: 1.1em;
}
.article-body p:first-of-type {
  margin-top: 0;
}
.article-body ul,
.article-body ol {
  margin-top: 1.1em;
  padding-left: 1.4em;
}
.article-body li {
  margin-top: 0.5em;
}
.article-body ul {
  list-style: disc;
}
.article-body ol {
  list-style: decimal;
}
.article-body a {
  color: var(--accent-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover {
  color: var(--accent);
}
.article-body code {
  font-family: var(--font-mono);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  font-size: 0.88em;
  color: var(--accent-teal);
}
.article-body pre {
  margin-top: 1.3em;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1em 1.3em;
  overflow-x: auto;
}
.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--fg-secondary);
}
.article-body blockquote {
  margin-top: 1.3em;
  padding-left: 1.1em;
  border-left: 2px solid var(--accent);
  color: var(--fg-primary);
  font-style: italic;
}
.article-body strong {
  color: var(--fg-primary);
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin-block: 2.4em;
}
.article-body table {
  margin-top: 1.3em;
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: var(--step--1);
}
.article-body table thead th {
  background: var(--bg-inset);
  border-bottom: 1px solid var(--border-bright);
  padding: 0.7rem 0.85rem;
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--accent);
  white-space: nowrap;
}
.article-body table tbody th {
  text-align: left;
  padding: 0.7rem 0.85rem;
  font-weight: 500;
  color: var(--fg-primary);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.article-body table td {
  padding: 0.7rem 0.85rem;
  color: var(--fg-secondary);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.article-body table tbody tr:last-child > * {
  border-bottom: none;
}
.article-body table tbody tr:hover {
  background: var(--bg-surface-hover);
}
@media (max-width: 640px) {
  .article-body table thead {
    display: none;
  }
  .article-body table,
  .article-body table tbody,
  .article-body table tr,
  .article-body table td,
  .article-body table tbody th {
    display: block;
    width: 100%;
  }
  .article-body table tr {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
  }
  .article-body table tr:last-child {
    border-bottom: none;
  }
  .article-body table td::before,
  .article-body table tbody th::before {
    content: attr(data-label) ": ";
    color: var(--fg-muted);
    font-family: var(--font-mono);
    margin-right: 0.4rem;
  }
}
.article-cta {
  margin-top: 3.5rem;
  padding: 1.6rem clamp(1.2rem, 4vw, 2rem);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}
.article-cta p {
  color: var(--fg-secondary);
  max-width: 40ch;
}
.article-cta strong {
  color: var(--fg-primary);
  display: block;
  font-family: var(--font-mono);
  margin-bottom: 0.3rem;
}

.preferred-source {
  margin-top: 2.5rem;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 150;
  transition: width 0.1s linear;
}

/* ---- Blog index empty-state / notice ----------------------------------------*/
.notice {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--fg-muted);
  border: 1px dashed var(--border-bright);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-top: 1.5rem;
}
.notice .c {
  color: #55503f;
}

/* ---- 404 -------------------------------------------------------------------*/
.error-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.error-inner {
  max-width: 560px;
  text-align: left;
}
.error-code {
  font-family: var(--font-mono);
  color: var(--diff-remove);
  font-size: var(--step--1);
  margin-bottom: 1rem;
}