/* ============================================================
   ArtMagma — css/base.css
   Variáveis globais, reset e tipografia
   ============================================================ */

/* ---------- VARIÁVEIS ---------- */
:root {
  /* Cores */
  --color-bg:        #1a0a00;
  --color-surface:   #3b1000;
  --color-card:      #2a0e00;
  --color-footer:    #0f0400;
  --color-orange:    #b84a1a;
  --color-orange-dk: #9a3d12;
  --color-cream:     #f5ecd7;
  --color-muted:     #a08070;
  --color-border:    #3b1000;
  --color-success:   #7dcc7d;
  --color-error:     #e57373;

  /* Tipografia */
  --font-heading: 'Oswald', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  /* Espaçamentos */
  --gap-xs:  8px;
  --gap-sm:  16px;
  --gap-md:  24px;
  --gap-lg:  40px;
  --gap-xl:  60px;

  /* Bordas */
  --radius-sm: 3px;
  --radius-md: 6px;

  /* Transições */
  --transition: .25s ease;
  --transition-slow: .45s ease;

  /* Navbar height — usado em vários lugares */
  --navbar-h: 64px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol { list-style: none; }

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- TIPOGRAFIA GLOBAL ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
}

/* ---------- UTILITÁRIOS ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.text-orange { color: var(--color-orange); }
.text-muted  { color: var(--color-muted); }
.text-center { text-align: center; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--gap-xl);
}

/* ---------- SECTION HEADER ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--gap-lg);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-sm);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.section-title::before,
.section-title::after {
  content: '';
  width: 60px;
  height: 2px;
  background: var(--color-orange);
  display: block;
  flex-shrink: 0;
}

.section-icon {
  color: var(--color-orange);
  font-size: 1.1rem;
}

/* ---------- BOTÕES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-xs);
  background: var(--color-orange);
  color: #fff;
  font-family: var(--font-heading);
  font-size: .82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 30px;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.btn:hover {
  background: var(--color-orange-dk);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.btn--outline:hover {
  background: var(--color-orange);
  color: #fff;
}

.btn--dark {
  background: var(--color-surface);
  border-color: var(--color-orange);
  color: #1a0a00;
}

.btn--dark:hover {
  background: var(--color-orange);
  color: #fff;
}

/* ---------- TOAST ---------- */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--color-orange);
  color: #fff;
  font-family: var(--font-heading);
  font-size: .85rem;
  letter-spacing: 1px;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 20px rgba(0,0,0,.5);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  z-index: 9999;
  transition: opacity .3s, transform .3s;
  max-width: 300px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- FADE-IN (animations.js) ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}