/* ============================================
   AG Salvador - Developer Portfolio
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* --- Tokens --- */
:root {
  --bg-root: #0f1115;
  --bg-surface: #181b22;
  --bg-surface-hover: #1e222b;
  --bg-elevated: #22262f;
  --border: #2a2e38;
  --border-subtle: #1e222b;
  --accent: #4dabf7;
  --accent-dim: rgba(77, 171, 247, 0.12);
  --accent-glow: rgba(77, 171, 247, 0.25);
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #63637a;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 200ms cubic-bezier(0.25, 0.1, 0.25, 1);
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-root);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

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

a:hover {
  color: #74c0fc;
}

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

/* --- Background grain --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 100px 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(15, 17, 21, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav__logo span {
  color: var(--accent);
}

.nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav__links a:hover {
  color: var(--text-primary);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.lang-toggle__btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle__btn.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.lang-toggle__btn:hover:not(.active) {
  color: var(--text-secondary);
}

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
}

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

/* --- Language visibility --- */
:root:not([lang="es"]) [data-lang-es],
:root[lang="es"] [data-lang-en] {
  display: none !important;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.6;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero__label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

.hero__title {
  font-family: var(--font-mono);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero__subtitle {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 17px);
  color: var(--text-muted);
  margin-bottom: 44px;
  letter-spacing: 0.01em;
}

.hero__subtitle span {
  color: var(--text-secondary);
}

.hero__supporting {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 560px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--accent);
  color: #0f1115;
}

.btn--primary:hover {
  background: #74c0fc;
  color: #0f1115;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* --- Section headers --- */
.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 600px;
  line-height: 1.7;
}

/* --- Divider --- */
.divider {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* --- About --- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 48px;
}

.about__text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 15px;
}

.about__skills {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skill-group__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.skill-group__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* --- Capabilities --- */
.capabilities__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 40px;
  margin-top: 40px;
}

.capabilities__list li {
  font-size: 15px;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
  line-height: 1.7;
}

.capabilities__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

@media (max-width: 768px) {
  .capabilities__list {
    grid-template-columns: 1fr;
  }
}

/* --- Projects --- */
.projects__grid {
  display: grid;
  gap: 24px;
  margin-top: 48px;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover {
  border-color: var(--border);
  background: var(--bg-surface-hover);
  transform: translateY(-2px);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card--featured {
  border-color: rgba(77, 171, 247, 0.15);
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}

.project-card__name {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.project-card__badge {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(77, 171, 247, 0.15);
}

.project-card__desc {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
  line-height: 1.65;
}

.project-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.project-card__link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-card__link:hover {
  color: #74c0fc;
}

.project-card__link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.project-card__link:hover svg {
  transform: translateX(3px);
}

/* --- Contact --- */
.contact__links {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.contact-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* --- Footer --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* --- Scroll reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RNMR Page
   ============================================ */

.rnmr-hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  text-align: center;
  position: relative;
}

.rnmr-hero::before {
  content: '';
  position: absolute;
  top: 100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.5;
}

.rnmr-hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.rnmr-hero__icon {
  width: 72px;
  height: 72px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.rnmr-hero__title {
  font-family: var(--font-mono);
  font-size: clamp(48px, 8vw, 80px);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
  line-height: 1;
}

.rnmr-hero__tagline {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

.rnmr-hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Features --- */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: rgba(77, 171, 247, 0.2);
  background: var(--bg-surface-hover);
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent);
}

.feature-card__icon svg {
  width: 20px;
  height: 20px;
}

.feature-card__title {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Screenshots --- */
.screenshots__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.screenshot-placeholder {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  position: relative;
  overflow: hidden;
}

.screenshot-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 40%, var(--accent-dim) 50%, transparent 60%);
  opacity: 0.3;
}

/* --- Download --- */
.download__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
  max-width: 600px;
}

.download-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.download-card:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
  color: inherit;
}

.download-card__icon {
  margin-bottom: 12px;
  color: var(--accent);
}

.download-card__icon svg {
  width: 28px;
  height: 28px;
}

.download-card__label {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.download-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.download__version {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.download__version a {
  color: var(--accent);
}

/* --- Requirements --- */
.requirements {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-top: 48px;
}

.requirements__title {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.requirements__title svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.requirements__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.requirements__list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.requirements__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  section {
    padding: 72px 0;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(15, 17, 21, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 16px 24px;
    gap: 16px;
  }

  .nav__links.open {
    display: flex;
  }

  .nav__mobile-toggle {
    display: block;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    text-align: center;
    justify-content: center;
  }

  .contact__links {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__title {
    font-size: 36px;
  }

  .rnmr-hero__title {
    font-size: 44px;
  }
}