/*
 * WE360 REUSABLE DESIGN SYSTEM
 * Comprehensive component library with standard states and modifiers.
 * Respects the Version 1.0 Design Freeze identity.
 */

:root {
  --ds-transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --ds-transition-base: 0.4s var(--ease-cinematic, cubic-bezier(0.19, 1, 0.22, 1));
  --ds-transition-slow: 0.8s var(--ease-cinematic, cubic-bezier(0.19, 1, 0.22, 1));
  
  --ds-glass-bg: rgba(255, 255, 255, 0.03);
  --ds-glass-border: rgba(255, 255, 255, 0.05);
  --ds-glass-blur: blur(20px);
  
  --ds-dark-bg: #0a0a0a;
  --ds-dark-border: #222;
}

/* ==========================================================================
   ANIMATION SPECIFICATIONS
   ========================================================================== */
.ds-anim-fade { transition: opacity var(--ds-transition-base); }
.ds-anim-scale { transition: transform var(--ds-transition-base); }
.ds-anim-slide-up { transform: translateY(20px); opacity: 0; transition: all var(--ds-transition-slow); }
.ds-anim-slide-up.ds-scroll-active { transform: translateY(0); opacity: 1; }

/* ==========================================================================
   BUTTONS (.ds-btn)
   ========================================================================== */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  outline: none;
  border-radius: 8px;
  background: var(--text-pure);
  color: var(--bg-deep);
  padding: 12px 24px;
  font-size: 1rem;
  transition: all var(--ds-transition-fast), font-weight var(--ds-transition-base);
  position: relative;
  overflow: hidden;
  font-variation-settings: 'wght' 500;
}

/* States */
.ds-btn:hover, .ds-btn.ds-hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255,255,255,0.1);
  font-weight: 600;
  font-variation-settings: 'wght' 600; /* Variable Font Morphing */
}
.ds-btn:active, .ds-btn.ds-active {
  transform: translateY(1px);
  box-shadow: 0 5px 10px rgba(255,255,255,0.05);
}

/* Modifiers */
.ds-btn.ds-glass {
  background: var(--ds-glass-bg);
  color: var(--text-pure);
  border: 1px solid var(--ds-glass-border);
  backdrop-filter: var(--ds-glass-blur);
  -webkit-backdrop-filter: var(--ds-glass-blur);
}
.ds-btn.ds-glass::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle 80px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,0.2), transparent 100%);
  opacity: 0;
  transition: opacity var(--ds-transition-fast);
  pointer-events: none;
}
.ds-btn.ds-glass:hover::before {
  opacity: 1; /* Glow follows cursor */
}
.ds-btn.ds-glass:hover {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
}
.ds-btn.ds-dark { background: var(--ds-dark-bg); color: #fff; border: 1px solid var(--ds-dark-border); }
.ds-btn.ds-lg { padding: 18px 36px; font-size: 1.25rem; border-radius: 12px; }
.ds-btn.ds-sm { padding: 8px 16px; font-size: 0.85rem; border-radius: 6px; }


/* ==========================================================================
   CARDS (.ds-card)
   ========================================================================== */
.ds-card {
  background: #111;
  border-radius: 20px;
  padding: 2rem;
  transition: all var(--ds-transition-base);
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  will-change: transform;
}

/* States */
.ds-card:hover, .ds-card.ds-hover { transform: translateY(-5px); }
.ds-card:active, .ds-card.ds-active { transform: translateY(-2px); }

/* Modifiers */
.ds-card.ds-glass {
  background: var(--bg-glass);
  border: 1px solid var(--ds-glass-border);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  position: relative;
  overflow: hidden;
}
.ds-card.ds-glass::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle 300px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,0.08), transparent 100%);
  opacity: 0;
  transition: opacity var(--ds-transition-fast);
  pointer-events: none;
  z-index: 0;
}
.ds-card.ds-glass:hover::before {
  opacity: 1; /* Glass reflection */
}
.ds-card.ds-glass > * {
  position: relative;
  z-index: 1;
}
.ds-card.ds-glass:hover { border-color: rgba(255,255,255,0.15); }
.ds-card.ds-dark { background: var(--ds-dark-bg); border-color: var(--ds-dark-border); }
.ds-card.ds-lg { padding: 3.5rem 2.5rem; border-radius: 24px; }
.ds-card.ds-sm { padding: 1.25rem; border-radius: 16px; }


/* ==========================================================================
   NAVIGATION (.ds-nav)
   ========================================================================== */
.ds-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  background: transparent;
  transition: all var(--ds-transition-base);
}

.ds-nav.ds-scroll {
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(15px);
  padding: 1rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}


/* ==========================================================================
   TESTIMONIALS (.ds-testimonial)
   ========================================================================== */
.ds-testimonial {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2.5rem;
  border-radius: 20px;
  background: #1a1a1a;
  transition: transform var(--ds-transition-base);
}

.ds-testimonial.ds-glass {
  background: var(--ds-glass-bg);
  border: 1px solid var(--ds-glass-border);
  backdrop-filter: var(--ds-glass-blur);
}


/* ==========================================================================
   STATISTICS (.ds-stat)
   ========================================================================== */
.ds-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all var(--ds-transition-fast);
}

.ds-stat-value {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--accent-primary, #fff);
  line-height: 1;
}

.ds-stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.5rem;
}


/* ==========================================================================
   ACCORDIONS & PANELS (.ds-panel)
   ========================================================================== */
.ds-panel {
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 1.5rem 0;
  transition: background var(--ds-transition-fast);
}

.ds-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.25rem;
  font-family: var(--font-display);
}

.ds-panel-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--ds-transition-base);
  color: var(--text-muted);
}
.ds-panel.ds-active .ds-panel-content {
  max-height: 500px; /* Arbitrary large height for CSS transition */
  margin-top: 1rem;
}


/* ==========================================================================
   TIMELINES (.ds-timeline)
   ========================================================================== */
.ds-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
}

.ds-timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,0.1);
}


/* ==========================================================================
   BADGES & PILLS (.ds-badge, .ds-pill)
   ========================================================================== */
.ds-badge, .ds-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-pure);
  background: rgba(255,255,255,0.1);
}
.ds-badge { border-radius: 4px; }
.ds-pill { border-radius: 50px; }


/* ==========================================================================
   ICONS (.ds-icon)
   ========================================================================== */
.ds-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  font-size: 1.5rem;
  transition: all var(--ds-transition-fast);
}
.ds-icon.ds-glass { background: var(--ds-glass-bg); backdrop-filter: var(--ds-glass-blur); }
.ds-icon.ds-lg { width: 64px; height: 64px; font-size: 2rem; border-radius: 16px; }
.ds-icon.ds-sm { width: 32px; height: 32px; font-size: 1rem; border-radius: 8px; }


/* ==========================================================================
   FORM FIELDS (.ds-input)
   ========================================================================== */
.ds-input {
  width: 100%;
  padding: 16px 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--text-pure);
  font-family: var(--font-display);
  font-size: 1rem;
  transition: all var(--ds-transition-fast);
}
.ds-input:focus, .ds-input.ds-active {
  background: rgba(255,255,255,0.05);
  border-color: var(--accent-primary, #fff);
  outline: none;
}
.ds-input.ds-glass {
  background: var(--ds-glass-bg);
  backdrop-filter: var(--ds-glass-blur);
}
.ds-input.ds-lg { padding: 20px 24px; font-size: 1.15rem; }
.ds-input.ds-sm { padding: 10px 14px; font-size: 0.9rem; }