/* === ESTUDIO_IMPULSO | Shared Design System === */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@100..900&family=Geist+Mono:wght@100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

:root {
  /* Deep Dark palette */
  --color-bg: #09090b;
  --color-surface: #131315;
  --color-surface-container-lowest: #0e0e10;
  --color-surface-container-low: #1c1b1d;
  --color-surface-container: #201f22;
  --color-surface-container-high: #2a2a2c;
  --color-surface-container-highest: #353437;
  --color-surface-bright: #39393b;
  --color-primary: #ffffff;
  --color-on-primary: #2f3131;
  --color-outline: #8e9192;
  --color-outline-variant: #444748;
  --color-on-surface: #e5e1e4;
  --color-on-surface-variant: #c4c7c8;
  --color-secondary: #c8c6c9;
  --color-tertiary: #ffffff;
  --color-error: #ffb4ab;
  --color-accent: #3b82f6;
  --color-border-subtle: #18181b;
  --color-border-hover: #27272a;
}

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

body {
  background-color: var(--color-surface);
  color: var(--color-on-surface);
  font-family: 'Geist', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  margin: 0;
  min-height: 100vh;
}

body.bg-dim {
  background-color: var(--color-bg);
}

a { text-decoration: none; }

::selection {
  background-color: #e2e2e2;
  color: #636565;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border-subtle); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-border-hover); }

/* === Material Icons === */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  display: inline-block;
  line-height: 1;
}

/* === Typography === */
.font-headline-lg-mobile {
  font-family: 'Geist', sans-serif;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 500;
}

.font-headline-lg {
  font-family: 'Geist', sans-serif;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 500;
}

.font-display-lg {
  font-family: 'Geist', sans-serif;
  font-size: 48px;
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 600;
}

.font-body-md {
  font-family: 'Geist', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.font-body-sm {
  font-family: 'Geist', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 400;
}

.font-label-caps {
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.font-mono-code {
  font-family: 'Geist Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  font-weight: 400;
}

/* === Utility Classes === */
.container-site {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

.p-md { padding: 16px; }
.p-lg { padding: 24px; }
.p-xl { padding: 40px; }
.px-md { padding-left: 16px; padding-right: 16px; }
.px-lg { padding-left: 24px; padding-right: 24px; }
.px-xl { padding-left: 40px; padding-right: 40px; }
.py-md { padding-top: 16px; padding-bottom: 16px; }
.py-lg { padding-top: 24px; padding-bottom: 24px; }
.py-xl { padding-top: 40px; padding-bottom: 40px; }
.mt-xl { margin-top: 40px; }
.mb-lg { margin-bottom: 24px; }
.mb-xl { margin-bottom: 40px; }
.pt-md { padding-top: 16px; }
.pt-xl { padding-top: 40px; }
.pb-xl { padding-bottom: 40px; }

.gap-xs { gap: 4px; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }

.space-y-xs > * + * { margin-top: 4px; }
.space-y-sm > * + * { margin-top: 8px; }
.space-y-md > * + * { margin-top: 16px; }
.space-y-lg > * + * { margin-top: 24px; }
.space-y-xl > * + * { margin-top: 40px; }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-grow { flex-grow: 1; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.text-center { text-align: center; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { inset: 0; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.-z-10 { z-index: -10; }
.overflow-hidden { overflow: hidden; }
.whitespace-nowrap { white-space: nowrap; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.h-px { height: 1px; }
.h-16 { height: 64px; }
.w-2 { width: 8px; }
.h-2 { height: 8px; }
.w-16 { width: 64px; }
.h-16-2 { height: 64px; }
.w-24 { width: 96px; }
.max-w-2xl { max-width: 672px; }
.max-w-3xl { max-width: 768px; }
.max-w-4xl { max-width: 896px; }
.max-w-xl { max-width: 576px; }
.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.uppercase { text-transform: uppercase; }
.tracking-tighter { letter-spacing: -0.05em; }
.tracking-tight { letter-spacing: -0.02em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }
.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }
.text-primary { color: var(--color-primary); }
.text-on-primary { color: var(--color-on-primary); }
.text-on-surface { color: var(--color-on-surface); }
.text-on-surface-variant { color: var(--color-on-surface-variant); }
.text-outline { color: var(--color-outline); }
.text-error { color: var(--color-error); }
.text-black { color: #000000; }
.bg-primary { background-color: var(--color-primary); }
.bg-surface { background-color: var(--color-surface); }
.bg-surface-dim { background-color: var(--color-bg); }
.bg-surface-container { background-color: var(--color-surface-container); }
.bg-surface-container-low { background-color: var(--color-surface-container-low); }
.bg-surface-container-lowest { background-color: var(--color-surface-container-lowest); }
.bg-surface-container-high { background-color: var(--color-surface-container-high); }
.bg-surface-container-highest { background-color: var(--color-surface-container-highest); }
.bg-background { background-color: var(--color-surface); }
.bg-outline-variant { background-color: var(--color-outline-variant); }
.bg-accent { background-color: var(--color-accent); }
.rounded-full { border-radius: 9999px; }
.block { display: block; }
.hidden { display: none; }
.pointer-events-none { pointer-events: none; }
.opacity-30 { opacity: 0.3; }
.opacity-80 { opacity: 0.8; }
.opacity-90 { opacity: 0.9; }
.opacity-100 { opacity: 1; }
.opacity-0 { opacity: 0; }
.object-cover { object-fit: cover; }
.grayscale { filter: grayscale(100%); }
.cursor-pointer { cursor: pointer; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mt-1 { margin-top: 4px; }
.mt-auto { margin-top: auto; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }
.ml-lg { margin-left: 24px; }
.aspect-video { aspect-ratio: 16 / 9; }
.resize-none { resize: none; }
.h-32 { height: 128px; }
.list-none { list-style: none; }
.transition-all { transition: all 150ms ease; }
.transition-colors { transition: color 150ms ease, background-color 150ms ease, border-color 150ms ease; }
.transition-transform { transition: transform 150ms ease; }
.duration-150 { transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }
.duration-500 { transition-duration: 500ms; }
.duration-700 { transition-duration: 700ms; }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* === Navigation === */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-outline-variant);
}

.site-nav .nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
  height: 64px;
}

.site-nav .nav-brand {
  font-family: 'Geist', sans-serif;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  text-decoration: none;
}

.site-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav .nav-link {
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color 150ms ease;
}

.site-nav .nav-link:hover,
.site-nav .nav-link.active {
  color: var(--color-primary);
}

/* === Buttons === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding: 12px 24px;
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 150ms ease;
}

.btn-primary:hover { opacity: 0.9; }
.btn-primary:active { opacity: 0.8; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--color-outline-variant);
  color: var(--color-primary);
  padding: 12px 24px;
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.btn-secondary:hover { background-color: var(--color-surface-container-high); }

/* === Bento Cards === */
.bento-card {
  background: var(--color-surface-container-low);
  border: 1px solid var(--color-border-subtle);
  padding: 24px;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.bento-card:hover {
  border-color: var(--color-border-hover);
  background-color: #0c0c0e;
}

.bento-card-dark {
  background: var(--color-surface-container-lowest);
  border: 1px solid var(--color-border-subtle);
}

.bento-card-dark:hover {
  border-color: var(--color-border-hover);
}

.bento-border {
  border: 1px solid var(--color-border-subtle);
}

/* === Bento Grid Patterns === */
.bento-grid-2 { grid-template-columns: repeat(2, 1fr); }
.bento-grid-3 { grid-template-columns: repeat(3, 1fr); }
.bento-grid-4 { grid-template-columns: repeat(4, 1fr); }
.bento-grid-12 { grid-template-columns: repeat(12, 1fr); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-8 { grid-column: span 8 / span 8; }
.col-span-12 { grid-column: span 12 / span 12; }

/* === Footer === */
.site-footer {
  border-top: 1px solid var(--color-outline-variant);
  background-color: var(--color-surface);
}

.site-footer .footer-inner {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 16px;
  gap: 16px;
}

.site-footer .footer-brand {
  font-family: 'Geist', sans-serif;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
}

.site-footer .footer-copy {
  font-family: 'Geist', sans-serif;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-on-surface-variant);
}

.site-footer .footer-links {
  display: flex;
  gap: 24px;
}

.site-footer .footer-link {
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-on-surface-variant);
  transition: color 150ms ease;
}

.site-footer .footer-link:hover { color: var(--color-primary); }

/* === Badge / Chip === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  background-color: var(--color-surface-container);
  border: 1px solid var(--color-outline-variant);
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
}

.badge-dark {
  background-color: var(--color-bg);
  border-color: var(--color-border-hover);
}

.tag {
  display: inline-block;
  padding: 4px 8px;
  background-color: var(--color-surface-container-highest);
  font-family: 'Geist', sans-serif;
  font-size: 11px;
  color: var(--color-on-surface-variant);
}

/* === Status dot === */
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
}

.status-dot-active {
  background-color: #22c55e;
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.status-dot-accent {
  background-color: var(--color-accent);
}

@keyframes pulse {
  50% { opacity: .5; }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* === Section Dividers === */
.section-divider {
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-divider-line {
  width: 100%;
  height: 1px;
  background-color: rgb(68 71 72 / 0.3);
}

/* === Image cards (gallery) === */
.img-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface-container-low);
}

.img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: all 500ms ease;
}

.img-card:hover img {
  opacity: 1;
  transform: scale(1.02);
}

.img-card .img-label {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px;
  background: linear-gradient(to top, rgba(9,9,11,0.9), transparent);
  font-family: 'Geist Mono', monospace;
  font-size: 13px;
  color: var(--color-primary);
}

/* === Glass effect === */
.glass-panel {
  backdrop-filter: blur(8px);
  background: rgba(9, 9, 11, 0.8);
  border: 1px solid var(--color-border-subtle);
}

/* === Form Fields === */
.input-field {
  background: #000000;
  border: 1px solid var(--color-border-hover);
  color: #ffffff;
  font-family: 'Geist Mono', monospace;
  font-size: 14px;
  width: 100%;
  padding: 12px;
  border-radius: 2px;
  transition: border-color 150ms ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--color-primary);
}

.input-field-light {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.form-label {
  color: var(--color-on-surface-variant);
  font-family: 'Geist', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

/* === Back link === */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'Geist', sans-serif;
  font-size: 14px;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color 150ms ease;
}

.back-link:hover { color: var(--color-primary); }
.back-link:hover .material-symbols-outlined {
  transform: translateX(-4px);
}

/* === Atmosphere / Hero BG === */
.hero-bg-grid {
  background-image: radial-gradient(#18181b 1px, transparent 1px);
  background-size: 24px 24px;
}

/* === Showcase grid === */
.showcase-grid {
  display: grid;
  gap: 16px;
}

.showcase-col { display: flex; flex-direction: column; gap: 16px; }

/* === Glow effects === */
.glow-subtle {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, rgba(9, 9, 11, 0) 70%);
  pointer-events: none;
}

/* === Transitions for reveal === */
.reveal-section {
  transition: all 700ms ease;
  opacity: 1;
  transform: translateY(0);
}

/* === Gradient lines === */
.gradient-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.3), transparent);
}

/* === Spinner === */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}
.gradient-fade-r {
  background: linear-gradient(to left, var(--color-bg), transparent);
}

/* === Hover scale === */
.hover-scale:hover {
  transform: scale(1.02);
}

/* === Responsive === */
@media (min-width: 768px) {
  .md-flex-row { flex-direction: row; }
  .md-flex { display: flex; }
  .md-flex-1 { flex: 1; }
  .md-justify-center { justify-content: center; }
  .md-justify-start { justify-content: flex-start; }
  .md-justify-end { justify-content: flex-end; }
  .md-text-lg { font-size: 18px; }
  .md-w-2\/3 { width: 66.666667%; }
  .md-w-auto { width: auto; }
  .md-grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md-grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md-grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md-grid-cols-12 { grid-template-columns: repeat(12, 1fr); }
  .md-col-span-1 { grid-column: span 1 / span 1; }
  .md-col-span-2 { grid-column: span 2 / span 2; }
  .md-col-span-3 { grid-column: span 3 / span 3; }
  .md-col-span-4 { grid-column: span 4 / span 4; }
  .md-col-span-8 { grid-column: span 8 / span 8; }
  .md-col-span-12 { grid-column: span 12 / span 12; }
  .md-p-24 { padding: 96px; }
  .md-p-xl { padding: 40px; }
  .md-px-lg { padding-left: 24px; padding-right: 24px; }
  .md-pt-32 { padding-top: 128px; }
  .md-mb-0 { margin-bottom: 0; }
  .md-text-display-lg { font-size: 48px; line-height: 1.1; letter-spacing: -0.04em; font-weight: 600; }
  .md-text-headline-lg { font-size: 32px; line-height: 1.2; letter-spacing: -0.02em; font-weight: 500; }
}

/* Showcase page specific: asymmetric masonry grid */
@media (min-width: 768px) {
  .masonry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .masonry-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
}

/* Portfolio hover card effect */
.portfolio-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  transition: border-color 150ms ease;
  position: relative;
  overflow: hidden;
}

.portfolio-card:hover {
  border-color: var(--color-border-hover);
}

.portfolio-card:hover img {
  filter: grayscale(0);
  opacity: 1;
  transform: scale(1.02);
}

.portfolio-card .project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* Contact form highlight */
.input-field-highlight:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Responsive: stack nav links on mobile */
@media (max-width: 767px) {
  .site-nav .nav-links {
    display: none;
  }
  .font-display-lg {
    font-size: 40px;
  }
}