/* ================================================================
   SWAPPO MODERN LAYER 2026
   Trends applied: dark glassmorphism, bento grids, ambient gradients,
   magnetic micro-interactions, scroll-triggered atomic animations,
   variable typography, prefers-reduced-motion accessibility
   ================================================================ */

/* ===== TYPOGRAPHY UPGRADE ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&family=Inter+Tight:wght@400..900&display=swap');

:root {
  --font-display: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Modern color palette extensions */
  --gradient-mesh: radial-gradient(at 20% 10%, rgba(9,177,186,0.18) 0px, transparent 50%),
                   radial-gradient(at 80% 20%, rgba(255,107,107,0.12) 0px, transparent 50%),
                   radial-gradient(at 40% 90%, rgba(94,234,212,0.15) 0px, transparent 50%);
  --gradient-aurora: linear-gradient(135deg, #09B1BA 0%, #5EEAD4 25%, #06B6D4 50%, #3B82F6 100%);
  --gradient-sunset: linear-gradient(135deg, #FF6B6B 0%, #FFA62B 50%, #FFD93D 100%);

  /* Modern shadows */
  --shadow-glow-teal: 0 0 30px rgba(9,177,186,0.25), 0 0 60px rgba(9,177,186,0.15);
  --shadow-glow-coral: 0 0 30px rgba(255,107,107,0.25);
  --shadow-elevation-1: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
  --shadow-elevation-2: 0 2px 4px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.08);
  --shadow-elevation-3: 0 4px 8px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.10);
  --shadow-elevation-4: 0 8px 16px rgba(0,0,0,0.08), 0 24px 48px rgba(0,0,0,0.12);

  /* Easings */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-body);
  font-feature-settings: "ss01", "cv01", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .display {
  font-family: var(--font-display);
  letter-spacing: -0.025em;
  font-weight: 800;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(9,177,186,0.4), rgba(9,177,186,0.6));
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(9,177,186,0.6), rgba(9,177,186,0.8));
  background-clip: padding-box;
}

/* ===== SELECTION ===== */
::selection {
  background: rgba(9,177,186,0.25);
  color: #1A1A2E;
}

/* ===== AMBIENT GRADIENT ORBS (background mesh) ===== */
.ambient-mesh {
  position: relative;
  isolation: isolate;
}
.ambient-mesh::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  z-index: -1;
  pointer-events: none;
  animation: meshFloat 20s ease-in-out infinite;
}
@keyframes meshFloat {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
  50% { transform: scale(1.1) rotate(2deg); opacity: 0.85; }
}

/* ===== HERO ENHANCEMENT ===== */
.hero-banner {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(9,177,186,0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(94,234,212,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(255,107,107,0.08) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
  animation: meshFloat 25s ease-in-out infinite;
}
.hero-banner > * {
  position: relative;
  z-index: 1;
}

/* Bigger, bolder hero typography */
.hero-text h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem) !important;
  font-weight: 900 !important;
  letter-spacing: -0.04em !important;
  line-height: 1 !important;
  background: linear-gradient(135deg, #1A1A2E 0%, #1A1A2E 50%, #09B1BA 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-text h1 span {
  background: linear-gradient(135deg, #09B1BA 0%, #FF6B6B 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

/* ===== MAGNETIC BUTTONS ===== */
.btn-pill, .btn-primary, .btn, .auth-btn-primary {
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-out-quart);
}
.btn-pill::before, .btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s var(--ease-out-expo), height 0.6s var(--ease-out-expo);
  pointer-events: none;
}
.btn-pill:hover::before, .btn-primary:hover::before {
  width: 300px;
  height: 300px;
}
.btn-pill:hover, .btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-elevation-3), var(--shadow-glow-teal);
}
.btn-pill-teal {
  background: linear-gradient(135deg, #09B1BA 0%, #0a8f96 100%) !important;
  box-shadow: 0 4px 14px rgba(9,177,186,0.3);
}
.btn-pill-teal:hover {
  background: linear-gradient(135deg, #0a8f96 0%, #067A80 100%) !important;
}

/* ===== MODERN CARDS WITH ELEVATION ===== */
.swappo-card, .product-card, .step-card, .why-card, .testimonial-card,
.plan-card, .swap-card, .stat-card, .category-icon-card {
  border-radius: 20px !important;
  background: white;
  border: 1px solid rgba(229,231,235,0.6) !important;
  transition: all 0.5s var(--ease-out-quart) !important;
  position: relative;
  isolation: isolate;
}

.product-card::after, .swappo-card::after, .step-card::after, .category-icon-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, rgba(9,177,186,0) 50%, transparent);
  -webkit-mask: linear-gradient(white, white) content-box, linear-gradient(white, white);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-quart);
  pointer-events: none;
}

.product-card:hover::after, .swappo-card:hover::after,
.step-card:hover::after, .category-icon-card:hover::after {
  opacity: 1;
  background: linear-gradient(135deg, rgba(9,177,186,0.4), rgba(94,234,212,0.4) 50%, rgba(9,177,186,0.4));
}

.product-card:hover, .step-card:hover, .why-card:hover, .swappo-card:hover,
.category-icon-card:hover, .stat-card:hover {
  transform: translateY(-6px) !important;
  box-shadow: var(--shadow-elevation-4), 0 0 0 1px rgba(9,177,186,0.1) !important;
}

/* ===== PRODUCT IMAGE ZOOM 2.0 ===== */
.product-img {
  overflow: hidden;
  position: relative;
}
.product-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(9,177,186,0.15) 100%);
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-quart);
  pointer-events: none;
}
.product-card:hover .product-img::after {
  opacity: 1;
}
.product-img img {
  transition: transform 0.7s var(--ease-out-expo) !important;
}
.product-card:hover .product-img img {
  transform: scale(1.08) !important;
}

/* ===== BENTO GRID ENHANCEMENT (categories) ===== */
.category-icon-grid {
  display: grid !important;
  gap: 16px !important;
}
.category-icon-card {
  padding: 32px 20px !important;
  position: relative;
  background:
    linear-gradient(135deg, white 0%, white 100%),
    radial-gradient(circle at top right, rgba(9,177,186,0.06), transparent 70%);
  background-blend-mode: normal;
}
.category-icon-card .cat-icon i {
  background: linear-gradient(135deg, #6B7280 0%, #9CA3AF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  transition: all 0.5s var(--ease-out-quart) !important;
}
.category-icon-card:hover .cat-icon i {
  background: linear-gradient(135deg, #09B1BA 0%, #5EEAD4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: scale(1.2) rotate(-5deg) !important;
}

/* ===== DARK GLASSMORPHISM (impact section) ===== */
.section-dark-teal, .impact-counter-section {
  position: relative;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(9,177,186,0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(94,234,212,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #064E52 0%, #055A5E 50%, #043538 100%) !important;
  isolation: isolate;
  overflow: hidden;
}
.section-dark-teal::before, .impact-counter-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.05) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}
.section-dark-teal > *, .impact-counter-section > * {
  position: relative;
  z-index: 1;
}

/* Animated number glow */
.impact-number, .eco-ticker-number {
  text-shadow: 0 0 30px rgba(94,234,212,0.5);
  background: linear-gradient(135deg, #5EEAD4 0%, #2DD4BF 50%, #14B8A6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 900 !important;
  letter-spacing: -0.03em;
}

/* ===== NAVBAR GLASSMORPHISM ===== */
.navbar {
  background: rgba(255,255,255,0.85) !important;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.5);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}

/* ===== MEGA MENU GLASSMORPHISM ===== */
.mega-menu-bar {
  background: rgba(255,255,255,0.7) !important;
  backdrop-filter: saturate(180%) blur(15px);
  -webkit-backdrop-filter: saturate(180%) blur(15px);
}
.mega-dropdown {
  background: rgba(255,255,255,0.95) !important;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid rgba(229,231,235,0.5);
  box-shadow: var(--shadow-elevation-4);
}

/* ===== SCROLL REVEAL ATOMIC ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-quart), transform 0.8s var(--ease-out-quart);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal.visible > * {
  animation: staggerIn 0.6s var(--ease-out-expo) backwards;
}
.reveal.visible > *:nth-child(1) { animation-delay: 0.05s; }
.reveal.visible > *:nth-child(2) { animation-delay: 0.10s; }
.reveal.visible > *:nth-child(3) { animation-delay: 0.15s; }
.reveal.visible > *:nth-child(4) { animation-delay: 0.20s; }
.reveal.visible > *:nth-child(5) { animation-delay: 0.25s; }
.reveal.visible > *:nth-child(6) { animation-delay: 0.30s; }
@keyframes staggerIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== SECTION TITLES BIGGER ===== */
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em !important;
  line-height: 1.1 !important;
}

/* ===== PRICING CARDS ELEVATION ===== */
.plan-card.premium, .pricing-card.highlighted {
  background: linear-gradient(135deg, white 0%, #F0FDFD 100%) !important;
  border: 2px solid transparent !important;
  background-clip: padding-box;
  position: relative;
}
.plan-card.premium::before, .pricing-card.highlighted::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, #09B1BA 0%, #5EEAD4 50%, #FF6B6B 100%);
  z-index: -1;
  opacity: 0.6;
  animation: gradientShift 8s ease infinite;
  background-size: 200% 200%;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ===== HERO FLOATING ITEMS UPGRADE ===== */
.hero-floating-item {
  background: rgba(255,255,255,0.85) !important;
  backdrop-filter: saturate(180%) blur(15px);
  -webkit-backdrop-filter: saturate(180%) blur(15px);
  border: 1px solid rgba(255,255,255,0.5);
  box-shadow: var(--shadow-elevation-3) !important;
}
.hero-floating-item:hover {
  transform: scale(1.1) !important;
  box-shadow: var(--shadow-elevation-4), var(--shadow-glow-teal) !important;
  transition: all 0.4s var(--ease-spring);
}

/* ===== ECO TICKER UPGRADE ===== */
.eco-ticker {
  background: linear-gradient(90deg, #064E52 0%, #09B1BA 25%, #14B8A6 50%, #09B1BA 75%, #064E52 100%) !important;
  background-size: 300% 100% !important;
  box-shadow: 0 4px 20px rgba(9,177,186,0.3), inset 0 -1px 0 rgba(255,255,255,0.1) !important;
}

/* ===== INPUT FIELDS UPGRADE ===== */
.form-input, .input-styled, input[type="text"], input[type="email"], input[type="password"], input[type="tel"], textarea {
  transition: all 0.4s var(--ease-out-quart) !important;
}
.form-input:focus, .input-styled:focus,
input[type="text"]:focus, input[type="email"]:focus,
input[type="password"]:focus, input[type="tel"]:focus, textarea:focus {
  border-color: #09B1BA !important;
  box-shadow: 0 0 0 4px rgba(9,177,186,0.12), 0 0 20px rgba(9,177,186,0.08) !important;
  transform: translateY(-1px);
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast, .auth-toast, .pricing-toast {
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: var(--shadow-elevation-4) !important;
}

/* ===== FOOTER UPGRADE ===== */
.footer {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(9,177,186,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(94,234,212,0.1) 0%, transparent 50%),
    linear-gradient(180deg, #1A1A2E 0%, #0F0F1E 100%) !important;
  position: relative;
  isolation: isolate;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(9,177,186,0.4), transparent);
}

/* ===== SURPRISE ME BUTTON UPGRADE ===== */
.surprise-me-btn {
  background: linear-gradient(135deg, #09B1BA 0%, #5EEAD4 50%, #FF6B6B 100%) !important;
  background-size: 200% 200% !important;
  animation: surprisePulse 10s ease-in-out infinite, gradientShift 6s ease infinite !important;
  box-shadow: 0 8px 32px rgba(9,177,186,0.4), 0 0 60px rgba(9,177,186,0.15) !important;
}
.surprise-me-btn:hover {
  transform: scale(1.08) rotate(-2deg) !important;
  box-shadow: 0 12px 40px rgba(9,177,186,0.5), 0 0 80px rgba(9,177,186,0.3) !important;
}

/* ===== ENHANCE LINKS ===== */
a {
  transition: color 0.3s var(--ease-out-quart);
}

/* ===== SKELETON LOADER ===== */
.skeleton {
  background: linear-gradient(90deg, #F3F4F6 25%, #E5E7EB 50%, #F3F4F6 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s infinite;
  border-radius: 12px;
}
@keyframes skeletonShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ===== GLOW ON FOCUS-VISIBLE ===== */
*:focus-visible {
  outline: 2px solid #09B1BA;
  outline-offset: 4px;
  border-radius: 4px;
}

/* ===== PAGE TRANSITION ===== */
@view-transition {
  navigation: auto;
}

/* ===== ACCESSIBILITY: Reduced Motion ===== */
@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;
  }
  .ambient-mesh::before,
  .hero-banner::before,
  .surprise-me-btn,
  .plan-card.premium::before {
    animation: none !important;
  }
}

/* ===== ENHANCED RESPONSIVE TYPOGRAPHY ===== */
@media (max-width: 768px) {
  .section-title {
    font-size: clamp(1.4rem, 6vw, 2rem) !important;
  }
  .hero-text h1 {
    font-size: clamp(1.8rem, 7vw, 2.4rem) !important;
  }
}

/* ===== SUBTLE NOISE TEXTURE OVERLAY (premium feel) ===== */
.noise-texture {
  position: relative;
}
.noise-texture::after {
  content: '';
  position: absolute;
  inset: 0;
  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'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  mix-blend-mode: overlay;
  z-index: 1;
}

/* ===== FANCY HOVER UNDERLINE FOR TEXT LINKS ===== */
.fancy-link {
  position: relative;
  display: inline-block;
}
.fancy-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #09B1BA, #5EEAD4);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease-out-quart);
}
.fancy-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}