/* ============================================================
   FOXILLA TECH AND TOOLS — Global Stylesheet
   Design System: Clean White + Trusty Blue
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── CSS Custom Properties ── */
:root {
  /* Backgrounds — White & Off-White */
  --bg-primary: #ffffff;
  --bg-secondary: #f7f8fa;
  --bg-tertiary: #eef0f4;
  --bg-card: #ffffff;
  --bg-dark: #0f1524;
  --bg-dark-secondary: #1a2138;

  /* Accent — Trusty Blue */
  --accent: #1d4ed8;
  --accent-light: #3b82f6;
  --accent-lighter: #dbeafe;
  --accent-dark: #1e3a8a;

  /* Text — Dark & Readable */
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-on-dark: #f9fafb;
  --text-on-dark-secondary: #d1d5db;

  /* Status */
  --success: #059669;
  --success-light: #ecfdf5;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --whatsapp: #25d366;

  /* Borders */
  --border: #e5e7eb;
  --border-hover: #d1d5db;
  --border-dark: rgba(255,255,255,0.1);

  /* Shadows — Subtle */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;

  /* Fluid Type */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.3vw, 0.9rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.3vw, 1rem);
  --text-lg: clamp(1rem, 0.95rem + 0.35vw, 1.15rem);
  --text-xl: clamp(1.15rem, 1.05rem + 0.5vw, 1.35rem);
  --text-2xl: clamp(1.4rem, 1.2rem + 1vw, 1.8rem);
  --text-3xl: clamp(1.8rem, 1.4rem + 1.5vw, 2.5rem);
  --text-4xl: clamp(2.2rem, 1.6rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(2.8rem, 2rem + 3vw, 4.5rem);

  /* Transitions — Subtle only */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-whatsapp: 500;
  --z-header: 600;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

::selection {
  background: var(--accent-lighter);
  color: var(--accent-dark);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Base Elements ── */
img, video, svg { max-width: 100%; height: auto; display: block; }

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

ul, ol { list-style: none; }

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  transition: border-color var(--transition-base);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-lighter);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}
p:last-child { margin-bottom: 0; }

.text-accent { color: var(--accent); }

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-narrow { max-width: 860px; }

.section {
  padding: var(--space-4xl) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

/* ── Flexbox / Grid ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: #fff;
}
.btn-whatsapp:hover {
  background: #20b858;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-sm { padding: 0.45rem 1rem; font-size: var(--text-xs); }
.btn-lg { padding: 0.85rem 1.75rem; font-size: var(--text-base); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.2rem 0.65rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.badge-primary { background: var(--accent-lighter); color: var(--accent); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-gradient { background: var(--accent); color: #fff; }

/* ── Section Headers ── */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
}

/* ── Divider ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  border: none;
}

/* ── Scroll Reveal — Simple fade only ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal-left.revealed { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal-right.revealed { opacity: 1; transform: translateX(0); }

.stagger-children > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.stagger-children.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.3s; }
.stagger-children.revealed > *:nth-child(7) { transition-delay: 0.35s; }
.stagger-children.revealed > *:nth-child(8) { transition-delay: 0.4s; }
.stagger-children.revealed > * { opacity: 1; transform: translateY(0); }

/* ── Keyframes — Only essentials ── */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes blinkCursor {
  0%, 100% { border-right-color: var(--accent); }
  50% { border-right-color: transparent; }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section { padding: var(--space-3xl) 0; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-lg); }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section { padding: var(--space-2xl) 0; }
  .section-header { margin-bottom: var(--space-2xl); }
  .hide-mobile { display: none !important; }
}

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

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

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

.skip-link {
  position: fixed; top: -100%; left: var(--space-md);
  background: var(--accent); color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md); z-index: 9999;
  font-weight: 600; transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-md); }