/* ==========================================================================
   Crazy Solutions - Premium Global Stylesheet
   ========================================================================== */

/* Variables */
:root {
  /* Colors */
  --bg-main: #0a0a0c;
  --bg-secondary: #121216;
  --bg-glass: rgba(18, 18, 22, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #f8f9fa;
  --text-secondary: #a0a0ab;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-whatsapp: #25d366;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-blue);
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 4px;
  border-radius: 2px;
}

ul {
  list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 4.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.text-gradient {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* Layout Classes */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-lg {
  padding: 8rem 0;
}

/* Utility: pt-0 used on inner sections that follow a hero */
.pt-0 {
  padding-top: 0 !important;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent-blue);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a.active {
  color: var(--accent-blue);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 0.5rem;
  /* Minimum 44px touch target */
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
  pointer-events: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background var(--transition-normal), border-color var(--transition-normal), color var(--transition-normal);
  border: 1px solid transparent;
  /* Minimum 44px touch target */
  min-height: 44px;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.3);
  color: #fff;
}

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

.btn-outline:hover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.05);
  color: var(--text-primary);
}

/* Phone / WhatsApp button variants */
.btn-phone {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--accent-blue);
  gap: 0.5rem;
}

.btn-phone:hover {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

.btn-whatsapp {
  background: rgba(37, 211, 102, 0.1);
  border-color: rgba(37, 211, 102, 0.3);
  color: var(--accent-whatsapp);
  gap: 0.5rem;
}

.btn-whatsapp:hover {
  background: rgba(37, 211, 102, 0.2);
  color: var(--accent-whatsapp);
  transform: translateY(-1px);
}

.btn-email {
  background: rgba(139, 92, 246, 0.1);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--accent-purple);
  gap: 0.5rem;
}

.btn-email:hover {
  background: rgba(139, 92, 246, 0.2);
  color: var(--accent-purple);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, var(--accent-glow) 0%, transparent 50%);
  opacity: 0.5;
  z-index: -1;
  /* GPU composited — no layout trigger */
  will-change: opacity;
}

.hero-content {
  max-width: 800px;
}

.hero p {
  font-size: 1.125rem;
  max-width: 600px;
  margin-bottom: 2rem;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Cards (Services, Work) */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.2);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-blue);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

/* Contact Info Items */
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact-item svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--accent-blue);
  margin-top: 2px;
}

.contact-item a {
  color: var(--text-secondary);
  word-break: break-all;
}

.contact-item a:hover {
  color: var(--accent-blue);
}

.contact-item span {
  color: var(--text-secondary);
  word-break: break-all;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-control::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a0a0ab' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* Form messages — HIDDEN by default; JS sets display:block when needed */
.form-message {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  display: none;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* Floating Contact Bar */
.floating-contact {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 998;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-end;
}

.floating-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  color: #fff;
  will-change: transform;
}

.floating-btn svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  pointer-events: none;
}

.floating-btn:hover {
  transform: scale(1.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  color: #fff;
}

.floating-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
  color: #fff;
}

.floating-whatsapp {
  background: var(--accent-whatsapp);
}

.floating-phone {
  background: var(--accent-blue);
}

.floating-email {
  background: var(--accent-purple);
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-blue);
}

.footer-contact li {
  margin-bottom: 0.75rem;
}

.footer-contact a {
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  word-break: break-all;
}

.footer-contact a:hover {
  color: var(--accent-blue);
}

.footer-contact svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--accent-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
    will-change: auto;
  }

  .card,
  .btn,
  .floating-btn,
  .btn-phone,
  .btn-whatsapp,
  .btn-email {
    transition: none;
    will-change: auto;
  }

  .card:hover,
  .btn-primary:hover,
  .btn-phone:hover,
  .btn-whatsapp:hover,
  .btn-email:hover {
    transform: none;
  }

  .floating-btn:hover {
    transform: none;
  }
}

/* ===== Responsive ===== */

/* Tablet / Mobile (768px and below) */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--bg-main);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    /* Use transform for GPU-composited animation instead of top/visibility hack */
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: 999;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* Full-width nav links in mobile menu */
  .nav-links a {
    width: 100%;
    text-align: center;
  }

  .nav-links .btn {
    width: 100%;
    justify-content: center;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero-btns {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-btns .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* Stack 2-column form fields */
  .form-grid-2col {
    grid-template-columns: 1fr !important;
  }

  .floating-contact {
    bottom: 1.25rem;
    right: 1.25rem;
  }

  .floating-btn {
    width: 48px;
    height: 48px;
  }
}

/* Small mobile (480px and below) */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .section-lg {
    padding: 5rem 0;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .card {
    padding: 1.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .contact-actions {
    flex-direction: column;
  }

  .contact-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Very small screens (360px and below) */
@media (max-width: 360px) {
  .logo {
    font-size: 1.1rem;
  }

  .btn {
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
  }
}

/* Large desktop (1440px+) */
@media (min-width: 1440px) {
  .container {
    padding: 0 2rem;
  }
}

/* Extra large desktop (1920px+) */
@media (min-width: 1920px) {
  :root {
    --max-width: 1400px;
  }
}