/* INTERSOLAR ENERGIA RENOVÁVEL — DESIGN SYSTEM (SITE RESIDENCIAL) */
/* Fonte Google carregada via <link> no <head> do HTML, não por @import (evita bloqueio de renderização). */

:root {
  /* Paleta InterSolar */
  --color-green: #17633C;
  --color-green-dark: #0B3D28;
  --color-green-deep: #082E20;
  --color-yellow: #FFC900;
  --color-yellow-light: #FFD93D;
  --color-offwhite: #F7F5EE;
  --color-white: #FFFFFF;
  --color-text: #17231C;
  --color-muted: rgba(23, 35, 28, 0.62);
  --color-muted-onDark: rgba(247, 245, 238, 0.68);
  --color-border: rgba(23, 35, 28, 0.12);
  --color-border-onDark: rgba(247, 245, 238, 0.14);

  --accent-color: var(--color-yellow);
  --accent-glow: rgba(255, 201, 0, 0.35);

  --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'DM Mono', 'Geist Mono', monospace;

  --gutter: clamp(1.1rem, 4vw, 4rem);
  --max-width: 1360px;
  --header-height: 78px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  background-color: var(--color-offwhite);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body { position: relative; width: 100%; min-height: 100vh; background-color: var(--color-offwhite); overflow-x: hidden; }

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

::selection { background-color: var(--color-yellow); color: var(--color-green-deep); }

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

a { color: inherit; }

button { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--color-yellow);
  outline-offset: 3px;
  border-radius: 4px;
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-green);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 500;
}

.mono-tag::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  background-color: var(--color-yellow);
  border-radius: 50%;
  flex-shrink: 0;
}

.section-dark .mono-tag,
.section-deep .mono-tag { color: var(--color-yellow-light); }

.hero-heading .solar-word { color: var(--color-yellow); }
.hero-heading .engineering-word { color: inherit; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  background-color: var(--color-yellow);
  color: var(--color-green-deep);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 1.05rem 2.1rem;
  border-radius: 9999px;
  border: 1px solid var(--color-yellow);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px var(--accent-glow); background-color: var(--color-yellow-light); }
.btn-primary svg { transition: transform var(--transition-fast); }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 1.05rem 2rem;
  border-radius: 9999px;
  border: 1.5px solid var(--color-border);
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.btn-secondary:hover { border-color: var(--color-green); color: var(--color-green); background-color: rgba(23, 99, 60, 0.05); }

.section-dark .btn-secondary,
.section-deep .btn-secondary { color: var(--color-offwhite); border-color: var(--color-border-onDark); }
.section-dark .btn-secondary:hover,
.section-deep .btn-secondary:hover { border-color: var(--color-yellow); color: var(--color-yellow-light); background-color: rgba(255, 201, 0, 0.06); }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }

.section { position: relative; padding: clamp(3.5rem, 8vw, 7.5rem) 0; z-index: 2; }

.section-light { background-color: var(--color-offwhite); color: var(--color-text); }
.section-white { background-color: var(--color-white); color: var(--color-text); }
.section-dark { background-color: var(--color-green-dark); color: var(--color-offwhite); }
.section-deep { background-color: var(--color-green-deep); color: var(--color-offwhite); }

.custom-cursor {
  position: fixed; top: 0; left: 0; width: 10px; height: 10px;
  background-color: var(--color-yellow); border-radius: 50%;
  pointer-events: none; z-index: 9999; transform: translate(-50%, -50%);
  transition: transform 0.1s ease-out, width 0.3s ease, height 0.3s ease;
  box-shadow: 0 0 14px var(--accent-glow);
}

.custom-cursor.hovered {
  width: 46px; height: 46px; background-color: rgba(255, 201, 0, 0.18);
  border: 1px solid var(--color-yellow); backdrop-filter: blur(4px);
}

.custom-cursor-text {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 500;
  letter-spacing: 0.08em; color: var(--color-green-deep); text-transform: uppercase;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 20px;
}

.section-dark .card, .section-deep .card {
  background: rgba(247, 245, 238, 0.05);
  border: 1px solid var(--color-border-onDark);
}

.eyebrow-line {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

/* Rótulo de etiqueta numerada usado em várias seções */
.step-badge {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-green); color: var(--color-yellow);
  flex-shrink: 0;
}

/* Skip link para acessibilidade de teclado */
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 10000;
  background: var(--color-green-deep); color: var(--color-white);
  padding: 0.85rem 1.25rem; border-radius: 10px; font-family: var(--font-display);
  font-weight: 700; text-decoration: none; transition: top var(--transition-fast);
}
.skip-link:focus { top: 1rem; }

/* Breakpoints responsivos gerais */
@media (max-width: 900px) {
  :root { --header-height: 66px; }
  .btn-primary, .btn-secondary { width: 100% !important; justify-content: center !important; }
  .custom-cursor { display: none !important; }
}
