/* ============================================================
   DESIGN SYSTEM — CSS Custom Properties + Base Styles
   ============================================================ */

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

/* ── Color Palette ── */
:root {
  --bg-primary:      #0D0D1A;
  --bg-secondary:    #141428;
  --bg-tertiary:     #1C1C3A;
  --surface:         #252545;
  --border:          #2A2A4A;
  --border-light:    rgba(255,255,255,0.05);
  --border-hover:    rgba(255,255,255,0.10);

  --text-primary:    #F5F5F5;
  --text-secondary:  #A0A0B8;
  --text-tertiary:   #6B6B80;

  --green:           #00C853;
  --green-hover:     #00E676;
  --green-muted:     rgba(0,200,83,0.15);
  --green-glow:      0 0 40px rgba(0,200,83,0.3);
  --green-shadow:    rgba(0,200,83,0.25);

  --gold:            #FFD700;
  --gold-hover:      #FFE44D;
  --gold-muted:      rgba(255,215,0,0.12);
  --gold-glow:       0 0 30px rgba(255,215,0,0.2);

  --error:           #FF5252;
  --warning:         #FFB300;
  --info:            #40C4FF;
  --success:         #00C853;

  --gradient-hero:   linear-gradient(135deg, #0D0D1A 0%, #1A1A3E 50%, #0D0D1A 100%);
  --gradient-card:   linear-gradient(180deg, #141428 0%, #1C1C3A 100%);
  --gradient-green:  linear-gradient(135deg, #00C853, #00E676);
  --gradient-dark:   linear-gradient(180deg, #0D0D1A 0%, #0A0A15 100%);

  --shadow-sm:       0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:       0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:       0 8px 32px rgba(0,0,0,0.5);
  --shadow-xl:       0 16px 48px rgba(0,0,0,0.6);
  --shadow-green:    0 8px 32px rgba(0,200,83,0.2);
  --shadow-gold:     0 8px 32px rgba(255,215,0,0.15);

  --radius-sm:       0.5rem;
  --radius-md:       0.75rem;
  --radius-lg:       1rem;
  --radius-xl:       1.25rem;
  --radius-2xl:      1.5rem;
  --radius-full:     9999px;

  --font-heading:    'Space Grotesk', sans-serif;
  --font-body:       'Inter', sans-serif;

  --transition:      all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  --header-h:        4.5rem;
  --ticker-h:        3rem;
  --container:       80rem;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--surface); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
.h2 { font-size: clamp(1.75rem, 4vw, 3rem); }
.h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
.h4 { font-size: 1.25rem; }
.body-lg { font-size: 1.125rem; line-height: 1.75; }
.body   { font-size: 1rem; line-height: 1.7; }
.small  { font-size: 0.875rem; }
.caption { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }

.text-green   { color: var(--green); }
.text-gold    { color: var(--gold); }
.text-muted   { color: var(--text-secondary); }
.text-dim     { color: var(--text-tertiary); }
.text-center  { text-align: center; }

/* ── Layout ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section {
  padding: 5rem 0;
}
@media (min-width: 768px) {
  .section { padding: 7rem 0; }
}
.section--dark    { background: var(--bg-secondary); }
.section--darker  { background: #0A0A15; }
.section--gradient { background: var(--gradient-hero); }

/* ── Grid ── */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge--green {
  background: var(--green-muted);
  color: var(--green);
  border: 1px solid rgba(0,200,83,0.25);
}
.badge--gold {
  background: var(--gold-muted);
  color: var(--gold);
  border: 1px solid rgba(255,215,0,0.25);
}
.badge--outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ── Cards ── */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: 1.75rem;
  transition: var(--transition);
}
.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card--featured {
  border-color: rgba(0,200,83,0.4);
  box-shadow: 0 0 0 1px rgba(0,200,83,0.15), var(--shadow-green);
  transform: scale(1.02);
}
.card--featured:hover {
  transform: scale(1.02) translateY(-4px);
}
.card--gold {
  border-color: rgba(255,215,0,0.4);
  box-shadow: 0 0 0 1px rgba(255,215,0,0.15), var(--shadow-gold);
}

/* ── Section Heading ── */
.section-heading {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-heading .eyebrow {
  display: inline-block;
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-heading h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  margin-bottom: 1rem;
}
.section-heading p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 42rem;
  margin: 0 auto;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(0,200,83,0.2); }
  50%       { box-shadow: 0 0 40px rgba(0,200,83,0.4); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes orb-pulse {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50%       { opacity: 0.25; transform: scale(1.1); }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease-out forwards;
}
.animate-float {
  animation: float 4s ease-in-out infinite;
}
.anim-delay-1 { animation-delay: 0.1s; }
.anim-delay-2 { animation-delay: 0.2s; }
.anim-delay-3 { animation-delay: 0.3s; }
.anim-delay-4 { animation-delay: 0.4s; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Utility ── */
.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;
}
.mt-2  { margin-top: 0.5rem; }
.mt-4  { margin-top: 1rem; }
.mt-6  { margin-top: 1.5rem; }
.mt-8  { margin-top: 2rem; }
.mb-2  { margin-bottom: 0.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-8  { margin-bottom: 2rem; }
.w-full { width: 100%; }

/* ── Focus ── */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── Selection ── */
::selection {
  background: var(--green-muted);
  color: var(--green);
}

/* ── Orb backgrounds ── */
.orb-container {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orb-pulse 6s ease-in-out infinite;
}
.orb--green {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,200,83,0.12) 0%, transparent 70%);
}
.orb--blue {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(64,196,255,0.08) 0%, transparent 70%);
  animation-delay: 3s;
}

/* ── RTL overrides ── */
[dir="rtl"] .nav-links { flex-direction: row-reverse; }
[dir="rtl"] .card-icon { margin-left: auto; margin-right: 0; }
[dir="rtl"] .step-connector { transform: scaleX(-1); }
[dir="rtl"] .footer-grid { direction: rtl; }