/* ============================================================
   SilentShop — Modern Design System v3.0
   Dark Glass · Violet/Cyan Accent · Premium Crypto Aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Backgrounds */
  --ss-bg: #000000;
  --ss-bg-2: #05050A;
  --ss-bg-soft: #0A0A10;
  --ss-card: rgba(10, 10, 15, 0.65);
  --ss-card-solid: #0A0A0A;
  --ss-card-hover: rgba(24, 24, 30, 0.75);

  /* Borders */
  --ss-border: rgba(255, 255, 255, 0.08);
  --ss-border-strong: rgba(255, 255, 255, 0.15);
  --ss-border-glow: rgba(59, 110, 201, 0.25);

  /* Text */
  --ss-text: #fafafa;
  --ss-text-2: #c3c1d7;
  --ss-muted: #a3a3a3;
  --ss-muted-2: #525252;

  /* Brand accents */
  --ss-violet: #3b6ec9;
  --ss-violet-2: #221fcd;
  --ss-cyan: #3b6ec9;
  --ss-cyan-2: #221fcd;
  --ss-accent: #3b6ec9;          /* primary */
  --ss-accent-light: #5a8be6;
  --ss-accent-2: #221fcd;        /* secondary */
  --ss-accent-2-light: #4441e8;

  --ss-accent-soft: rgba(59, 110, 201, 0.12);
  --ss-accent-soft-2: rgba(34, 31, 205, 0.10);
  --ss-accent-glow: rgba(59, 110, 201, 0.45);

  /* Status */
  --ss-success: #10B981;
  --ss-success-soft: rgba(16, 185, 129, 0.14);
  --ss-warning: #F59E0B;
  --ss-warning-soft: rgba(245, 158, 11, 0.14);
  --ss-danger: #EF4444;
  --ss-danger-soft: rgba(239, 68, 68, 0.14);

  /* Gradients */
  --ss-gradient-brand: linear-gradient(135deg, #3b6ec9 0%, #221fcd 100%);
  --ss-gradient-violet: linear-gradient(135deg, #3b6ec9 0%, #221fcd 100%);
  --ss-gradient-cyan: linear-gradient(135deg, #3b6ec9 0%, #221fcd 100%);
  --ss-gradient-emerald: linear-gradient(135deg, #10B981 0%, #059669 100%);
  --ss-gradient-text: linear-gradient(92deg, #ffffff -0.17%, #c3c5f6 101.37%);

  /* Radius */
  --ss-radius: 16px;
  --ss-radius-sm: 8px;
  --ss-radius-lg: 20px;
  --ss-radius-xl: 28px;

  /* Shadows */
  --ss-shadow-sm: 0 4px 16px -4px rgba(0, 0, 0, 0.4);
  --ss-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.55);
  --ss-shadow-lg: 0 24px 60px -12px rgba(0, 0, 0, 0.7);
  --ss-shadow-glow: 0 8px 32px -8px rgba(59, 110, 201, 0.45);

  --ss-transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --ss-transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
*::selection { background: rgba(168, 85, 247, 0.3); color: #fff; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--ss-bg);
  color: var(--ss-text);
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6, .font-display {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  letter-spacing: -0.025em;
  font-weight: 700;
  line-height: 1.15;
}

/* ============================================================
   BACKGROUND EFFECTS
   ============================================================ */

.ss-bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(to right, rgba(139, 92, 246, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(139, 92, 246, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 80%);
}

.ss-bg-glow {
  position: fixed;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 80vw;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 30%, rgba(59, 110, 201, 0.32) 0%, transparent 55%);
}

.ss-bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -2;
  pointer-events: none;
  opacity: 0.5;
  animation: ss-float-slow 12s ease-in-out infinite;
}

.ss-orb-1 {
  top: 10%;
  right: -8%;
  width: 480px;
  height: 480px;
  background: rgba(168, 85, 247, 0.30);
}

.ss-orb-2 {
  bottom: 15%;
  left: -12%;
  width: 560px;
  height: 560px;
  background: rgba(6, 182, 212, 0.20);
  animation-delay: -4s;
}

.ss-orb-3 {
  top: 50%;
  left: 30%;
  width: 380px;
  height: 380px;
  background: rgba(99, 102, 241, 0.18);
  animation-delay: -8s;
}

@keyframes ss-float-slow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.08); }
  66% { transform: translate(-20px, 30px) scale(0.96); }
}

/* ============================================================
   GLASS CARDS
   ============================================================ */

.ss-glass {
  background: var(--ss-card);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius);
  box-shadow: var(--ss-shadow);
  position: relative;
  transition: transform var(--ss-transition),
              border-color var(--ss-transition),
              box-shadow var(--ss-transition),
              background var(--ss-transition);
}

.ss-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.4), transparent 50%, rgba(6, 182, 212, 0.3));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--ss-transition);
  pointer-events: none;
}

.ss-glass:hover {
  border-color: var(--ss-border-strong);
  background: var(--ss-card-hover);
  box-shadow: var(--ss-shadow-lg);
}

.ss-glass:hover::before {
  opacity: 1;
}

.ss-glass-interactive {
  cursor: pointer;
}

.ss-glass-interactive:hover {
  transform: translateY(-4px);
}

/* ============================================================
   NAVBAR
   ============================================================ */

.ss-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7, 7, 15, 0.72);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--ss-border);
  transition: background var(--ss-transition);
}

.ss-navbar.scrolled {
  background: rgba(7, 7, 15, 0.88);
  border-bottom-color: var(--ss-border-strong);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.ss-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--ss-radius-sm);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  transition: all var(--ss-transition);
  cursor: pointer;
  border: none;
  outline: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  font-family: inherit;
}

.ss-btn-primary {
  background: var(--ss-gradient-brand);
  background-size: 200% 200%;
  color: white;
  box-shadow: 0 4px 20px -4px var(--ss-accent-glow);
  animation: ss-gradient-shift 6s ease infinite;
}

.ss-btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent 50%);
  opacity: 0;
  transition: opacity var(--ss-transition);
}

.ss-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -8px var(--ss-accent-glow);
}

.ss-btn-primary:hover::before {
  opacity: 1;
}

.ss-btn-primary:active {
  transform: translateY(0) scale(0.97);
}

@keyframes ss-gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.ss-btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border: 1.5px solid var(--ss-border-strong);
  color: var(--ss-text);
  backdrop-filter: blur(12px);
}

.ss-btn-secondary:hover {
  background: var(--ss-accent-soft);
  border-color: var(--ss-accent);
  color: var(--ss-accent-light);
  transform: translateY(-2px);
}

.ss-btn-secondary:active {
  transform: scale(0.97);
}

.ss-btn-ghost {
  background: transparent;
  color: var(--ss-muted);
  padding: 10px 16px;
}

.ss-btn-ghost:hover {
  color: var(--ss-text);
  background: rgba(255, 255, 255, 0.05);
}

.ss-btn-success {
  background: var(--ss-gradient-emerald);
  color: white;
  box-shadow: 0 4px 20px -4px rgba(16, 185, 129, 0.5);
}

.ss-btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -8px rgba(16, 185, 129, 0.6);
}

/* ============================================================
   LINKS
   ============================================================ */

.ss-link {
  color: var(--ss-muted);
  font-weight: 500;
  transition: color var(--ss-transition);
  cursor: pointer;
  position: relative;
}

.ss-link:hover {
  color: var(--ss-text);
}

.ss-link-active {
  color: var(--ss-text);
}

.ss-link-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ss-gradient-brand);
}

/* ============================================================
   INPUTS
   ============================================================ */

.ss-input {
  width: 100%;
  background: rgba(10, 10, 24, 0.6);
  border: 1.5px solid var(--ss-border);
  border-radius: var(--ss-radius-sm);
  padding: 14px 18px;
  color: var(--ss-text);
  font-size: 15px;
  font-family: inherit;
  transition: all var(--ss-transition);
  backdrop-filter: blur(8px);
}

.ss-input::placeholder {
  color: var(--ss-muted-2);
}

.ss-input:hover {
  border-color: var(--ss-border-strong);
}

.ss-input:focus {
  outline: none;
  border-color: var(--ss-accent);
  background: rgba(10, 10, 24, 0.85);
  box-shadow: 0 0 0 4px var(--ss-accent-soft);
}

/* ============================================================
   BADGE
   ============================================================ */

.ss-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--ss-accent-soft);
  border: 1px solid var(--ss-border);
  color: var(--ss-accent-light);
  letter-spacing: 0.01em;
  backdrop-filter: blur(8px);
}

.ss-badge-success {
  background: var(--ss-success-soft);
  border-color: rgba(16, 185, 129, 0.30);
  color: #34D399;
}

.ss-badge-warning {
  background: var(--ss-warning-soft);
  border-color: rgba(245, 158, 11, 0.30);
  color: #FBBF24;
}

.ss-badge-cyan {
  background: var(--ss-accent-soft-2);
  border-color: rgba(6, 182, 212, 0.30);
  color: var(--ss-accent-2-light);
}

/* ============================================================
   MODAL
   ============================================================ */

.ss-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ss-transition-slow), visibility var(--ss-transition-slow);
}

.ss-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.ss-modal {
  width: 100%;
  max-width: 480px;
  background: var(--ss-card-solid);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border: 1px solid var(--ss-border-strong);
  border-radius: var(--ss-radius-lg);
  padding: 32px;
  transform: scale(0.94) translateY(20px);
  transition: transform var(--ss-transition-slow);
  box-shadow: var(--ss-shadow-lg), 0 0 80px -20px var(--ss-accent-glow);
  position: relative;
  overflow: hidden;
}

.ss-modal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ss-accent-light), transparent);
  opacity: 0.5;
}

.ss-modal-overlay.active .ss-modal {
  transform: scale(1) translateY(0);
}

/* ============================================================
   DRAWER (mobile menu)
   ============================================================ */

.ss-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ss-transition-slow), visibility var(--ss-transition-slow);
}

.ss-drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

.ss-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 380px;
  background: var(--ss-card-solid);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border-left: 1px solid var(--ss-border-strong);
  z-index: 160;
  transform: translateX(100%);
  transition: transform var(--ss-transition-slow);
  display: flex;
  flex-direction: column;
}

.ss-drawer-overlay.active + .ss-drawer,
.ss-drawer.active {
  transform: translateX(0);
}

/* ============================================================
   FAB (floating action button)
   ============================================================ */

.ss-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--ss-gradient-brand);
  background-size: 200% 200%;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px -4px var(--ss-accent-glow), 0 0 0 0 var(--ss-accent-glow);
  cursor: pointer;
  transition: all var(--ss-transition);
  z-index: 90;
  border: none;
  animation: ss-gradient-shift 6s ease infinite, ss-pulse-glow 3s ease-in-out infinite;
}

.ss-fab:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 12px 40px -4px var(--ss-accent-glow), 0 0 0 8px var(--ss-accent-soft);
}

@keyframes ss-pulse-glow {
  0%, 100% { box-shadow: 0 8px 32px -4px var(--ss-accent-glow), 0 0 0 0 var(--ss-accent-glow); }
  50% { box-shadow: 0 8px 32px -4px var(--ss-accent-glow), 0 0 0 16px transparent; }
}

/* ============================================================
   TOAST
   ============================================================ */

.ss-toast {
  position: fixed;
  top: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(-120px);
  z-index: 250;
  padding: 14px 24px;
  border-radius: var(--ss-radius);
  background: var(--ss-card-solid);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--ss-border-strong);
  color: var(--ss-text);
  font-weight: 500;
  font-size: 14px;
  box-shadow: var(--ss-shadow-lg);
  transition: transform var(--ss-transition-slow);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 90vw;
}

.ss-toast.show {
  transform: translateX(-50%) translateY(0);
}

.ss-toast::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--ss-gradient-brand);
  border-radius: 999px 0 0 999px;
}

/* ============================================================
   FOCUS
   ============================================================ */

.ss-focus:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--ss-bg), 0 0 0 4px var(--ss-accent);
  border-radius: var(--ss-radius-sm);
}

/* ============================================================
   UTILITIES
   ============================================================ */

.ss-text-gradient {
  background: var(--ss-gradient-text);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: ss-gradient-shift 8s ease infinite;
}

.ss-glow-text {
  text-shadow: 0 0 40px rgba(168, 85, 247, 0.5);
}

.ss-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ss-border-strong), transparent);
  border: none;
  margin: 24px 0;
}

/* ============================================================
   SCROLLBAR
   ============================================================ */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(168, 85, 247, 0.3), rgba(6, 182, 212, 0.3));
  border-radius: 999px;
  border: 2px solid var(--ss-bg);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(168, 85, 247, 0.5), rgba(6, 182, 212, 0.5));
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(168, 85, 247, 0.3) transparent;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

@keyframes ss-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

@keyframes ss-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes ss-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes ss-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ss-scale-in {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.ss-animate-pulse { animation: ss-pulse 2.2s ease-in-out infinite; }
.ss-animate-float { animation: ss-float 4.5s ease-in-out infinite; }
.ss-animate-fade-in { animation: ss-fade-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards; }
.ss-animate-scale-in { animation: ss-scale-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) backwards; }

.ss-shimmer {
  background: linear-gradient(90deg,
    var(--ss-card) 0%,
    var(--ss-card-hover) 50%,
    var(--ss-card) 100%);
  background-size: 200% 100%;
  animation: ss-shimmer 2s linear infinite;
}

/* Stagger animation delays */
.ss-stagger > * { animation: ss-fade-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards; }
.ss-stagger > *:nth-child(1) { animation-delay: 0.05s; }
.ss-stagger > *:nth-child(2) { animation-delay: 0.10s; }
.ss-stagger > *:nth-child(3) { animation-delay: 0.15s; }
.ss-stagger > *:nth-child(4) { animation-delay: 0.20s; }
.ss-stagger > *:nth-child(5) { animation-delay: 0.25s; }
.ss-stagger > *:nth-child(6) { animation-delay: 0.30s; }
.ss-stagger > *:nth-child(7) { animation-delay: 0.35s; }
.ss-stagger > *:nth-child(8) { animation-delay: 0.40s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  .ss-orb-1, .ss-orb-2, .ss-orb-3 { width: 320px; height: 320px; }
  .ss-fab { bottom: 20px; right: 20px; width: 54px; height: 54px; }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Hidden helper */
.ss-hidden { display: none !important; }