/* ========================================
   Radztech Profile - Theme & Base Styles
   ======================================== */

:root {
  /* Colors */
  --charcoal-black: #161616;
  --primary: #FF7704;
  --primary-black: #161616;
  --primary-gradient: linear-gradient(-90deg, #FF7704, #F7B272);
  --bg-light: #FAFBFD;
  --gray-muted: #6B7280;
  --background: #FAFBFD;
  --foreground: #161616;
  --muted: #fafafa;
  --muted-foreground: #6B7280;
  --card: #fafbfd;
  --border: #e5e5e5;
  --footer-bg: #161616;
  --footer-foreground: #fafbfd;
  --gradient-orange: linear-gradient(135deg, #FF7704 0%, #ea580c 100%);
  --gradient-orange-diagonal: linear-gradient(135deg, #FF7704 0%, #fb923c 50%, #fdba74 100%);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius: 6px;
  --container-max: 1140px;

  /* Fonts */
  --font-heading: 'Fira Sans', sans-serif;
  --font-body: 'Roboto', sans-serif;

  /* Standard Sizes */
  --font-size-h1: clamp(2rem, 5vw, 3rem);
  --font-size-h2: clamp(1.5rem, 4vw, 2rem);
  --font-size-h3: 1.25rem;
  --font-size-label: 1.25rem; /* 20px */
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;

  /* Layout */
  --app-bar-height: 64px;
  --container-max-width: 1140px;
  --section-padding-x: 150px;
}

@media (max-width: 992px) {
  :root {
    --section-padding-x: 20px;
  }
}

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

/* Base Styles */
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--app-bar-height);
}

body {
  margin: 0;
  padding-top: var(--app-bar-height);
  font-family: var(--font-body);
  background-color: var(--bg-light);
  color: var(--charcoal-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Section Base */
.section {
  padding: 5rem 0;
}

.section:nth-child(even) {
  background: #fafafa;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--charcoal-black);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--gray-muted);
  margin-top: 0.75rem;
  font-size: var(--font-size-body);
}

.section-label {
  display: block;
  color: var(--primary);
  font-weight: 600;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Standard Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin: 0;
  color: var(--charcoal-black);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

/* Standard Content Styles */
p, span, li, a {
  font-family: var(--font-body);
}

/* Standard Card Styles */
.card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h3);
  font-weight: 600;
}

.card-text {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--gray-muted);
}

.text-small {
  font-size: var(--font-size-small);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: var(--font-size-body);
  font-weight: 600;
  border-radius: 3px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: #ffffff;
  color: var(--primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.9);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: var(--font-size-body);
  font-weight: 600;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--charcoal-black);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255, 119, 4, 0.04);
}

/* Modern Loading Animations (Reveal & Stagger) */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

.reveal-stagger.active > * {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger Delays for up to 12 children */
.reveal-stagger.active > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger.active > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger.active > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger.active > *:nth-child(4) { transition-delay: 0.25s; }
.reveal-stagger.active > *:nth-child(5) { transition-delay: 0.3s; }
.reveal-stagger.active > *:nth-child(6) { transition-delay: 0.35s; }
.reveal-stagger.active > *:nth-child(7) { transition-delay: 0.4s; }
.reveal-stagger.active > *:nth-child(8) { transition-delay: 0.45s; }
.reveal-stagger.active > *:nth-child(9) { transition-delay: 0.5s; }
.reveal-stagger.active > *:nth-child(10) { transition-delay: 0.55s; }
.reveal-stagger.active > *:nth-child(11) { transition-delay: 0.6s; }
.reveal-stagger.active > *:nth-child(12) { transition-delay: 0.65s; }