/* Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  left: var(--space-4);
  bottom: var(--space-4);
  z-index: 1100;
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 211, 102, 0.14);
  border: 1px solid rgba(37, 211, 102, 0.34);
  color: #25d366;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.floating-whatsapp:hover {
  background: rgba(37, 211, 102, 0.22);
  color: #fff;
}
.floating-whatsapp svg {
  width: 22px;
  height: 22px;
  display: block;
}
@media (max-width: 768px) {
  .floating-whatsapp {
    left: var(--space-3);
    bottom: var(--space-3);
    width: 40px;
    height: 40px;
    font-size: 10px;
  }
}
/* =============================================
   CSS VARIABLES — DESIGN TOKENS
   ============================================= */
:root {
  /* Colors */
  --bg-base:        #080808;
  --bg-surface:     #111111;
  --bg-elevated:    #1a1a1a;
  --bg-overlay:     #222222;
  --border:         rgba(255,255,255,0.07);
  --border-hover:   rgba(255,255,255,0.14);

  --text-primary:   #f0f0f0;
  --text-secondary: rgba(240,240,240,0.55);
  --text-muted:     rgba(240,240,240,0.30);

  --accent:         #f48322;
  --accent-dim:     rgba(244,131,34,0.15);
  --accent-glow:    rgba(244,131,34,0.35);
  --accent-hover:   #ff9a3c;

  --white:          #ffffff;
  --black:          #000000;

  /* Typography */
  --font-display:   'DM Sans', sans-serif;
  --font-body:      'DM Sans', sans-serif;
  --font-mono:      'DM Mono', monospace;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;
  --space-10: 128px;

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

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 24px rgba(0,0,0,0.6);
  --shadow-lg:  0 12px 48px rgba(0,0,0,0.7);
  --shadow-accent: 0 0 32px rgba(244,131,34,0.25);

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 280ms;
  --duration-slow: 500ms;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 56px;
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--black); }

/* =============================================
   SCROLLBAR
   ============================================= */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: var(--r-full); }

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeUp {
  from { opacity:0; transform:translateY(28px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes fadeIn {
  from { opacity:0; }
  to   { opacity:1; }
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%      { box-shadow: 0 0 0 8px transparent; }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slideIn {
  from { opacity:0; transform:translateX(-16px); }
  to   { opacity:1; transform:translateX(0); }
}
@keyframes gradientShift {
  0%,100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}
@keyframes modalIn {
  from { opacity:0; transform:scale(0.94) translateY(16px); }
  to   { opacity:1; transform:scale(1) translateY(0); }
}

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(8,8,8,0.72);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--space-5);
  animation: fadeIn 0.5s var(--ease-out);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo svg { color: var(--accent); }

.nav-links {
  display: flex;
  gap: var(--space-5);
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
  letter-spacing: 0.01em;
}

.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent) !important;
}

/* =============================================
   LAYOUT
   ============================================= */
.page {
  padding-top: var(--nav-height);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-10) 0;
}

.section + .section {
  border-top: 1px solid var(--border);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: calc(100svh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-10) var(--space-5);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%,   rgba(244,131,34,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%,   rgba(244,131,34,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 100%,  rgba(255,255,255,0.02) 0%, transparent 60%);
  pointer-events: none;
}

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' 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");
  background-size: 256px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(244,131,34,0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-full);
  margin-bottom: var(--space-5);
  animation: fadeUp 0.6s var(--ease-out) 0.1s both;
}

.hero-title {
  font-size: clamp(36px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-5);
  animation: fadeUp 0.6s var(--ease-out) 0.2s both;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent) 0%, #ffb347 50%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease infinite;
}

.hero-sub {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: var(--space-7);
  animation: fadeUp 0.6s var(--ease-out) 0.3s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.6s var(--ease-out) 0.4s both;
}

/* =============================================
   SECTION HEADER
   ============================================= */
.section-header {
  margin-bottom: var(--space-7);
}

.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.65;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  outline: none;
  text-decoration: none;
  transition:
    transform var(--duration-fast) var(--ease-spring),
    box-shadow var(--duration-base) var(--ease-out),
    background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

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

/* Sizes */
.btn-sm  { height: 32px;  padding: 0 14px; font-size: 12px; border-radius: var(--r-md); }
.btn-md  { height: 42px;  padding: 0 20px; font-size: 14px; border-radius: var(--r-md); }
.btn-lg  { height: 52px;  padding: 0 28px; font-size: 15px; border-radius: var(--r-lg); }
.btn-xl  { height: 60px;  padding: 0 36px; font-size: 16px; border-radius: var(--r-lg); }
.btn-full { width: 100%; }

/* Variants */
.btn-primary {
  background: var(--accent);
  color: var(--black);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 0 4px var(--accent-dim), var(--shadow-accent);
  transform: translateY(-1px) scale(1.01);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-overlay);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(244,131,34,0.4);
}
.btn-outline:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.btn-danger {
  background: rgba(255,69,58,0.12);
  color: #ff453a;
  border: 1px solid rgba(255,69,58,0.2);
}
.btn-danger:hover {
  background: rgba(255,69,58,0.22);
  border-color: rgba(255,69,58,0.4);
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--r-md);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-icon.btn-sm { width: 32px; height: 32px; border-radius: var(--r-sm); }
.btn-icon.btn-lg { width: 52px; height: 52px; border-radius: var(--r-lg); }

/* Disabled */
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* Loading */
.btn-loading {
  pointer-events: none;
  position: relative;
}
.btn-loading .btn-text { opacity: 0; }
.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* =============================================
   BUTTONS DEMO GRID
   ============================================= */
.btn-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* =============================================
   LOADERS
   ============================================= */
.loader-ring {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loader-ring-lg {
  width: 64px;
  height: 64px;
  border-width: 3px;
}

.loader-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.loader-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}
.loader-dots span:nth-child(2) { animation-delay: 0.2s; }
.loader-dots span:nth-child(3) { animation-delay: 0.4s; }

.loader-bar {
  height: 3px;
  width: 200px;
  background: var(--border);
  border-radius: var(--r-full);
  overflow: hidden;
  position: relative;
}
.loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease infinite;
}

.loader-skeleton {
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-overlay) 50%, var(--bg-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.8s ease infinite;
  border-radius: var(--r-sm);
}

.loader-pulse {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s ease infinite;
}

/* =============================================
   CARDS
   ============================================= */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition:
    transform var(--duration-base) var(--ease-spring),
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
}

.card:hover {
  transform: translateY(-3px) scale(1.01);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

.card-body { padding: var(--space-6); }
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-accent {
  border-color: rgba(244,131,34,0.25);
}
.card-accent:hover {
  border-color: rgba(244,131,34,0.5);
  box-shadow: var(--shadow-accent);
}

.card-glass {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
}

/* =============================================
   CARD GRID
   ============================================= */
.grid {
  display: grid;
  gap: var(--space-4);
}
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* =============================================
   TYPOGRAPHY
   ============================================= */
.t-display { font-size: clamp(40px, 8vw, 96px); font-weight: 700; letter-spacing: -0.05em; line-height: 0.95; }
.t-h1      { font-size: clamp(28px, 5vw, 56px);  font-weight: 700; letter-spacing: -0.03em; line-height: 1.05; }
.t-h2      { font-size: clamp(22px, 4vw, 40px);  font-weight: 600; letter-spacing: -0.025em; line-height: 1.1; }
.t-h3      { font-size: clamp(18px, 3vw, 28px);  font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.t-h4      { font-size: 20px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; }
.t-body    { font-size: 16px; line-height: 1.65; }
.t-sm      { font-size: 14px; line-height: 1.55; }
.t-xs      { font-size: 12px; line-height: 1.5; }
.t-label   { font-size: 11px; font-weight: 500; letter-spacing: 0.10em; text-transform: uppercase; }
.t-mono    { font-family: var(--font-mono); font-size: 13px; }

.t-accent   { color: var(--accent); }
.t-muted    { color: var(--text-muted); }
.t-secondary{ color: var(--text-secondary); }
.t-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, #ffb347 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   FORMS
   ============================================= */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-label { font-size: 13px; font-weight: 500; color: var(--text-secondary); }

.input {
  height: 44px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0 var(--space-4);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition:
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
  width: 100%;
}

.input::placeholder { color: var(--text-muted); }
.input:hover { border-color: var(--border-hover); }
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  background: rgba(244,131,34,0.03);
}

textarea.input {
  height: auto;
  min-height: 100px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

.input-group {
  display: flex;
  gap: 0;
}
.input-group .input {
  border-radius: var(--r-md) 0 0 var(--r-md);
  border-right: none;
}
.input-group .btn {
  border-radius: 0 var(--r-md) var(--r-md) 0;
  flex-shrink: 0;
}

select.input { appearance: none; cursor: pointer; }

/* =============================================
   BADGES
   ============================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: var(--r-full);
  border: 1px solid transparent;
}

.badge-default  { background: var(--bg-overlay);  color: var(--text-secondary); border-color: var(--border); }
.badge-accent   { background: var(--accent-dim);   color: var(--accent);         border-color: rgba(244,131,34,0.3); }
.badge-success  { background: rgba(52,199,89,0.12); color: #30d158;              border-color: rgba(52,199,89,0.25); }
.badge-warning  { background: rgba(255,214,10,0.12);color: #ffd60a;              border-color: rgba(255,214,10,0.25); }
.badge-danger   { background: rgba(255,69,58,0.12); color: #ff453a;              border-color: rgba(255,69,58,0.25); }

.badge-dot::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* =============================================
   ICONS (flat monochromatic SVG)
   ============================================= */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: inherit;
}
.icon-sm  { width: 16px; height: 16px; }
.icon-md  { width: 20px; height: 20px; }
.icon-lg  { width: 24px; height: 24px; }
.icon-xl  { width: 32px; height: 32px; }

.icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--r-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--accent);
  transition:
    transform var(--duration-base) var(--ease-spring),
    background var(--duration-fast) var(--ease-out);
  animation: float 4s ease-in-out infinite;
}
.icon-wrap:nth-child(2) { animation-delay: 0.6s; }
.icon-wrap:nth-child(3) { animation-delay: 1.2s; }
.icon-wrap:nth-child(4) { animation-delay: 1.8s; }

/* =============================================
   DIVIDER
   ============================================= */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-6) 0;
}
.divider-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-muted);
  font-size: 12px;
  margin: var(--space-5) 0;
}
.divider-label::before,
.divider-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* =============================================
   PROGRESS
   ============================================= */
.progress-wrap {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #ffb347);
  border-radius: var(--r-full);
  transition: width 1s var(--ease-out);
}

/* =============================================
   TOOLTIP
   ============================================= */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) scale(0.85);
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 12px;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  pointer-events: none;
  opacity: 0;
  transition: all var(--duration-fast) var(--ease-out);
  transform-origin: bottom center;
}
[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* =============================================
   SLIDER / CAROUSEL
   ============================================= */
.slider-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
}

.slider-track {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: var(--space-2);
  cursor: grab;
  user-select: none;
}
.slider-track::-webkit-scrollbar { display: none; }
.slider-track.dragging { cursor: grabbing; }

.slide {
  scroll-snap-align: start;
  flex: 0 0 280px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--space-6);
  transition: border-color var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-spring);
}
.slide:hover {
  border-color: var(--border-hover);
  transform: scale(1.015);
}

.slide-img {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--r-md);
  margin-bottom: var(--space-4);
  object-fit: cover;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.slider-controls {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-4);
}
.slider-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-hover);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.slider-dot.active {
  background: var(--accent);
  width: 20px;
  border-radius: var(--r-full);
}

/* =============================================
   MODAL
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: var(--space-5);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-hover);
  border-radius: var(--r-xl);
  width: 100%;
  max-width: 480px;
  overflow: hidden;
  transform: scale(0.94) translateY(16px);
  transition: transform var(--duration-base) var(--ease-spring);
  box-shadow: var(--shadow-lg), 0 0 80px rgba(0,0,0,0.5);
}
.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-6) var(--space-6) var(--space-4);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.modal-body {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.65;
}

.modal-footer {
  padding: var(--space-4) var(--space-6) var(--space-6);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* =============================================
   GRADIENTS SHOWCASE
   ============================================= */
.gradient-mesh {
  background:
    radial-gradient(ellipse at 20% 30%,  rgba(244,131,34,0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%,  rgba(255,200,100,0.10) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 10%,  rgba(244,131,34,0.08) 0%, transparent 50%),
    var(--bg-surface);
}

.gradient-linear {
  background: linear-gradient(135deg, var(--bg-surface) 0%, rgba(244,131,34,0.08) 50%, var(--bg-surface) 100%);
}

.gradient-sweep {
  background: conic-gradient(from 0deg at 50% 50%, var(--bg-surface), rgba(244,131,34,0.15), var(--bg-surface), rgba(244,131,34,0.08), var(--bg-surface));
}

.gradient-card {
  height: 140px;
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-secondary);
  transition: transform var(--duration-base) var(--ease-spring);
}
.gradient-card:hover {
  transform: scale(1.02);
}

.g1 { background: linear-gradient(135deg, #0a0a0a 0%, rgba(244,131,34,0.20) 100%); }
.g2 { background: radial-gradient(ellipse at top, rgba(244,131,34,0.22) 0%, #0a0a0a 70%); }
.g3 { background: linear-gradient(to right, rgba(244,131,34,0.06) 0%, rgba(244,131,34,0.22) 50%, rgba(244,131,34,0.06) 100%); }
.g4 { background: conic-gradient(from 180deg, #111 0deg, rgba(244,131,34,0.18) 120deg, #111 240deg, rgba(255,179,71,0.10) 300deg, #111 360deg); }
.g5 { background: linear-gradient(210deg, rgba(244,131,34,0.22) 0%, transparent 40%), linear-gradient(30deg, rgba(255,179,71,0.10) 0%, transparent 50%), #0d0d0d; }
.g6 {
  background: linear-gradient(135deg, rgba(244,131,34,0.30) 0%, rgba(255,179,71,0.40) 50%, rgba(244,131,34,0.15) 100%);
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
}

/* =============================================
   ZOOM ON HOVER
   ============================================= */
.zoom-hover {
  transition: transform var(--duration-base) var(--ease-spring);
  will-change: transform;
}
.zoom-hover:hover { transform: scale(1.04); }
.zoom-hover-sm:hover { transform: scale(1.015); }
.zoom-hover-lg:hover { transform: scale(1.08); }

/* =============================================
   FEATURE LIST
   ============================================= */
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--r-lg);
  transition: background var(--duration-fast) var(--ease-out);
  animation: slideIn 0.4s var(--ease-out) both;
}
.feature-item:hover { background: var(--bg-elevated); }

/* =============================================
   CODE BLOCK
   ============================================= */
.code-block {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.code-dots {
  display: flex;
  gap: 6px;
}
.code-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.code-dots .d1 { background: #ff5f57; }
.code-dots .d2 { background: #febc2e; }
.code-dots .d3 { background: #28c840; }

.code-lang {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.code-body {
  padding: var(--space-5);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-secondary);
  overflow-x: auto;
}

.code-body .kw  { color: var(--accent); }
.code-body .str { color: #30d158; }
.code-body .num { color: #64d2ff; }
.code-body .cmt { color: var(--text-muted); font-style: italic; }
.code-body .fn  { color: #bf5af2; }
.code-body .var { color: var(--text-primary); }

/* =============================================
   TOGGLE / SWITCH
   ============================================= */
.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  cursor: pointer;
  flex-shrink: 0;
}
.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  border-radius: var(--r-full);
  border: 1px solid var(--border);
  transition: background var(--duration-fast) var(--ease-out), border-color var(--duration-fast);
}
.toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 18px;
  height: 18px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform var(--duration-base) var(--ease-spring), background var(--duration-fast);
}
.toggle input:checked ~ .toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}
.toggle input:checked ~ .toggle-thumb {
  transform: translateX(22px);
  background: var(--black);
}

/* =============================================
   TABS
   ============================================= */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-elevated);
  border-radius: var(--r-lg);
  padding: 3px;
  width: fit-content;
}

.tab {
  font-size: 13px;
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: calc(var(--r-lg) - 3px);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
  border: none;
  background: transparent;
  font-family: var(--font-body);
  white-space: nowrap;
}

.tab.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}
.tab:hover:not(.active) { color: var(--text-primary); }

/* =============================================
   NOTIFICATION / TOAST
   ============================================= */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  max-width: 360px;
  animation: slideIn 0.3s var(--ease-spring);
}
.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}
.toast-title { font-size: 14px; font-weight: 500; margin-bottom: 2px; }
.toast-desc  { font-size: 13px; color: var(--text-secondary); }

.toast-success { border-left: 3px solid #30d158; }
.toast-warning { border-left: 3px solid #ffd60a; }
.toast-error   { border-left: 3px solid #ff453a; }
.toast-info    { border-left: 3px solid var(--accent); }

/* =============================================
   AVATAR
   ============================================= */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid rgba(244,131,34,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
  overflow: hidden;
}
.avatar-lg { width: 56px; height: 56px; font-size: 18px; }
.avatar-sm { width: 28px; height: 28px; font-size: 10px; }

.avatar-group {
  display: flex;
}
.avatar-group .avatar {
  border: 2px solid var(--bg-base);
  margin-left: -10px;
}
.avatar-group .avatar:first-child { margin-left: 0; }

/* =============================================
   STATS
   ============================================= */
.stat-card {
  padding: var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  transition: transform var(--duration-base) var(--ease-spring), box-shadow var(--duration-base);
}
.stat-card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: var(--shadow-md);
}
.stat-value {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}
.stat-delta {
  font-size: 12px;
  font-weight: 500;
  margin-top: var(--space-2);
}
.stat-delta.up   { color: #30d158; }
.stat-delta.down { color: #ff453a; }

/* =============================================
   DRAG AREA
   ============================================= */
.drag-area {
  border: 2px dashed var(--border);
  border-radius: var(--r-xl);
  padding: var(--space-9) var(--space-6);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  background: var(--bg-surface);
}
.drag-area:hover,
.drag-area.drag-over {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 0 4px var(--accent-dim);
}
.drag-area .drag-icon {
  font-size: 36px;
  margin-bottom: var(--space-3);
  display: block;
}

/* =============================================
   FLOATING LABEL INPUT
   ============================================= */
.float-group {
  position: relative;
}
.float-group .input {
  padding-top: 18px;
  padding-bottom: 6px;
  height: 52px;
}
.float-label {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--text-muted);
  pointer-events: none;
  transition: all var(--duration-fast) var(--ease-out);
}
.float-group .input:focus ~ .float-label,
.float-group .input:not(:placeholder-shown) ~ .float-label {
  top: 12px;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-9) 0 var(--space-7);
  color: var(--text-muted);
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 280px;
}
.footer-heading {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--duration-fast);
}
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* =============================================
   UTILITY
   ============================================= */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-1  { gap: var(--space-1); }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-5  { gap: var(--space-5); }
.gap-6  { gap: var(--space-6); }
.mb-4   { margin-bottom: var(--space-4); }
.mb-5   { margin-bottom: var(--space-5); }
.mb-6   { margin-bottom: var(--space-6); }
.mb-7   { margin-bottom: var(--space-7); }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.flex-wrap   { flex-wrap: wrap; }

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}