/* ============================================================
   TAPLINK — GLOBAL DESIGN SYSTEM
   Futuristic Dark-Green Theme
   ============================================================ */

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

/* ── CSS Custom Properties ── */
:root {
  /* Colors */
  --clr-bg:         #030d06;
  --clr-bg-2:       #061a0d;
  --clr-bg-3:       #0a2614;
  --clr-surface:    #0d3a1a;
  --clr-surface-2:  #113f1e;

  --clr-primary:    #00ff88;
  --clr-primary-dk: #00cc66;
  --clr-primary-lt: #66ffb3;
  --clr-accent:     #39ff14;   /* neon lime */
  --clr-accent-2:   #00ffcc;  /* cyan-green */

  --clr-text:       #e8f5ec;
  --clr-text-2:     #a0c0aa;
  --clr-text-3:     #608070;
  --clr-muted:      #3a5a44;

  --clr-border:     rgba(0,255,136,0.15);
  --clr-border-2:   rgba(0,255,136,0.30);
  --clr-glass:      rgba(0,255,136,0.04);
  --clr-glass-2:    rgba(0,255,136,0.08);

  --clr-danger:     #ff4466;
  --clr-warn:       #ffaa00;
  --clr-info:       #00ccff;

  /* Glow */
  --glow-sm:   0 0 12px rgba(0,255,136,0.25);
  --glow-md:   0 0 24px rgba(0,255,136,0.35);
  --glow-lg:   0 0 48px rgba(0,255,136,0.40);
  --glow-xl:   0 0 80px rgba(0,255,136,0.30);

  /* Shadows */
  --shadow-card:  0 8px 32px rgba(0,0,0,0.4);
  --shadow-deep:  0 20px 60px rgba(0,0,0,0.6);

  /* Spacing */
  --sp-xs:  4px;
  --sp-sm:  8px;
  --sp-md:  16px;
  --sp-lg:  24px;
  --sp-xl:  40px;
  --sp-2xl: 64px;
  --sp-3xl: 96px;

  /* Border radius */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   20px;
  --r-xl:   32px;
  --r-full: 9999px;

  /* Transitions */
  --t-fast:  0.15s ease;
  --t-med:   0.3s ease;
  --t-slow:  0.5s ease;

  /* Typography */
  --ff-body: 'Space Grotesk', sans-serif;
  --ff-mono: 'JetBrains Mono', monospace;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-md:   1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.25rem;
  --fs-2xl:  1.5rem;
  --fs-3xl:  2rem;
  --fs-4xl:  2.5rem;
  --fs-5xl:  3.5rem;
  --fs-6xl:  5rem;

  /* Layout */
  --container: 1200px;
  --sidebar-w: 260px;
  --nav-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, video { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg-2); }
::-webkit-scrollbar-thumb {
  background: var(--clr-primary-dk);
  border-radius: var(--r-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--clr-primary); }

/* ── Selection ── */
::selection {
  background: rgba(0,255,136,0.25);
  color: var(--clr-primary);
}

/* ── Container ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
}

/* ── Typography Utilities ── */
.text-primary   { color: var(--clr-primary); }
.text-muted     { color: var(--clr-text-2); }
.text-center    { text-align: center; }
.text-gradient  {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-2 {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-primary), var(--clr-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Section Labels ── */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 6px 16px;
  border-radius: var(--r-full);
  background: var(--clr-glass-2);
  border: 1px solid var(--clr-border-2);
  color: var(--clr-primary);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}
.section-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-primary);
  box-shadow: var(--glow-sm);
  animation: pulse 2s infinite;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 12px 24px;
  border-radius: var(--r-md);
  font-size: var(--fs-md);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--t-med);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--t-fast);
}
.btn:hover::after { opacity: 0.06; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dk));
  color: #030d06;
  box-shadow: var(--glow-md);
}
.btn-primary:hover {
  box-shadow: var(--glow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--clr-glass-2);
  color: var(--clr-primary);
  border: 1px solid var(--clr-border-2);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  background: rgba(0,255,136,0.12);
  border-color: var(--clr-primary);
  box-shadow: var(--glow-sm);
}

.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border-2);
}
.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

.btn-danger {
  background: rgba(255,68,102,0.15);
  color: var(--clr-danger);
  border: 1px solid rgba(255,68,102,0.3);
}
.btn-danger:hover {
  background: rgba(255,68,102,0.25);
  border-color: var(--clr-danger);
}

.btn-sm { padding: 8px 16px; font-size: var(--fs-sm); border-radius: var(--r-sm); }
.btn-lg { padding: 16px 36px; font-size: var(--fs-lg); border-radius: var(--r-lg); }
.btn-xl { padding: 18px 48px; font-size: var(--fs-xl); border-radius: var(--r-lg); font-weight: 700; }
.btn-icon {
  width: 40px; height: 40px;
  padding: 0;
  border-radius: var(--r-md);
}

/* ── Glass Card ── */
.glass-card {
  background: var(--clr-glass);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.glass-card-2 {
  background: var(--clr-glass-2);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ── Form Elements ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--sp-md);
}
.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-text-2);
  letter-spacing: 0.03em;
}
.form-input, .form-textarea, .form-select {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  color: var(--clr-text);
  padding: 12px 16px;
  transition: all var(--t-med);
  width: 100%;
  outline: none;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--clr-text-3);
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(0,255,136,0.1);
  background: var(--clr-bg-3);
}
.form-textarea {
  resize: vertical;
  min-height: 100px;
}
.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2300ff88' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.form-select option { background: var(--clr-bg-2); }

/* ── Input with icon ── */
.input-group {
  position: relative;
}
.input-group .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-text-3);
  font-size: 18px;
  pointer-events: none;
  transition: color var(--t-fast);
}
.input-group .form-input {
  padding-left: 44px;
}
.input-group:focus-within .input-icon {
  color: var(--clr-primary);
}

/* ── Tags / Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 600;
}
.badge-green {
  background: rgba(0,255,136,0.12);
  color: var(--clr-primary);
  border: 1px solid rgba(0,255,136,0.25);
}
.badge-gray {
  background: rgba(255,255,255,0.06);
  color: var(--clr-text-2);
  border: 1px solid rgba(255,255,255,0.1);
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--clr-border);
  margin: var(--sp-lg) 0;
}
.divider-glow {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
  opacity: 0.4;
  margin: var(--sp-xl) 0;
}

/* ── Grid ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-lg); }

/* ── Flex Utilities ── */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: var(--sp-sm); }
.gap-md { gap: var(--sp-md); }
.gap-lg { gap: var(--sp-lg); }

/* ── Animations ── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}
@keyframes glow-pulse {
  0%, 100% { box-shadow: var(--glow-md); }
  50%       { box-shadow: var(--glow-xl); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slide-in-left {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes scanner {
  0%   { top: 0%; opacity: 1; }
  90%  { top: 100%; opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
@keyframes orbit {
  from { transform: rotate(0deg) translateX(120px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(120px) rotate(-360deg); }
}
@keyframes particle-float {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-100px) translateX(30px); opacity: 0; }
}
@keyframes border-glow {
  0%, 100% { border-color: rgba(0,255,136,0.2); }
  50%       { border-color: rgba(0,255,136,0.6); }
}

/* ── Animate Classes ── */
.animate-float    { animation: float 4s ease-in-out infinite; }
.animate-pulse    { animation: glow-pulse 3s ease-in-out infinite; }
.animate-spin     { animation: spin 8s linear infinite; }
.animate-slide-up { animation: slide-up 0.6s ease both; }
.animate-fade     { animation: fade-in 0.5s ease both; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  animation: reveal-fallback 0.6s ease 2s forwards;
}
/* Fallback: if JS never adds .visible, CSS animation shows content after 2s */
@keyframes reveal-fallback {
  to { opacity: 1; transform: translateY(0); }
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  animation: none;
}
.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; }

/* ── Noise overlay ── */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Toast Notification ── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 14px 20px;
  border-radius: var(--r-md);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-size: var(--fs-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-card);
  animation: slide-up 0.3s ease;
  max-width: 340px;
}
.toast.success { border-color: rgba(0,255,136,0.4); }
.toast.success .toast-icon { color: var(--clr-primary); }
.toast.error   { border-color: rgba(255,68,102,0.4); }
.toast.error   .toast-icon { color: var(--clr-danger); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3,13,6,0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-lg);
  animation: fade-in 0.2s ease;
}
.modal {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-deep), var(--glow-sm);
  animation: slide-up 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--sp-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

/* ── Avatar ── */
.avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--clr-surface);
  border: 2px solid var(--clr-border);
  object-fit: cover;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--clr-primary);
  flex-shrink: 0;
}

/* ── Loading ── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(0,255,136,0.2);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Tooltips ── */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-surface);
  color: var(--clr-text);
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--clr-border);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-fast);
  z-index: 100;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ── Range input ── */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--clr-surface);
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--clr-primary);
  box-shadow: var(--glow-sm);
  cursor: pointer;
  border: 2px solid var(--clr-bg);
}

/* ── Color swatch ── */
input[type="color"] {
  -webkit-appearance: none;
  width: 44px; height: 44px;
  border: 2px solid var(--clr-border);
  border-radius: var(--r-md);
  background: none;
  cursor: pointer;
  padding: 2px;
  transition: border-color var(--t-fast);
}
input[type="color"]:hover { border-color: var(--clr-primary); }
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; border-radius: 6px; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 6px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--sp-md); }
  .btn-xl { padding: 14px 24px; font-size: var(--fs-md); }
  .d-none-mobile { display: none !important; }
  .d-block-mobile { display: block !important; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: var(--sp-2xl) 0; }
}