/*
  GLOBAL.CSS — Reset, layout base, botões, footer e utilitários
*/

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: var(--lh-body);
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 48px 48px;
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at top left, rgba(63, 143, 127, 0.07), transparent 42%);
  z-index: 0;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--color-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button,
.btn {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.container {
  width: min(var(--container-lg), 100%);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

.page {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-3xl);
  min-height: calc(100vh - 120px);
}

.page-intro {
  margin-bottom: var(--space-2xl);
  max-width: 42rem;
}

.page-kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.page-intro h1,
.section-title {
  font-size: var(--fs-3xl);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: var(--lh-tight);
  margin-bottom: var(--space-sm);
}

.page-lead,
.section-subtitle {
  color: var(--color-text-muted);
  font-size: var(--fs-lg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

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

.btn-secondary {
  border: var(--border-width) solid var(--color-border-strong);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-ghost {
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text-muted);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.site-footer {
  border-top: var(--border-width) solid var(--color-border);
  background: var(--color-bg-footer);
  padding: var(--space-xl) 0;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.site-footer p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

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

.social-links a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.social-links a:hover {
  color: var(--color-primary);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--anim-reveal), transform var(--anim-reveal);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

#loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  display: grid;
  place-items: center;
  z-index: var(--z-overlay);
  transition: opacity var(--transition-normal);
}

#loading-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loader {
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.loader-bar {
  width: 72px;
  height: 2px;
  margin: 0 auto var(--space-sm);
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.loader-bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 40%;
  background: var(--color-primary);
  animation: loader-slide 0.9s var(--ease) infinite;
}

@keyframes loader-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(280%); }
}

.music-player {
  position: fixed;
  right: var(--gutter);
  bottom: var(--space-lg);
  z-index: var(--z-player);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-bg-elevated);
  border: var(--border-width) solid var(--color-border);
  padding: 0.45rem 0.55rem 0.45rem 0.85rem;
  border-radius: var(--radius-md);
  /* margin-bottom: 452px;
   */
}

.player-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.player-label {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.music-name {
  font-size: var(--fs-xs);
  white-space: nowrap;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.play-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  display: grid;
  place-items: center;
}

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

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

@media (max-width: 640px) {
  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }

  .music-name {
    display: none;
  }

  .player-label {
    display: none;
  }
}