/* ==========================================================================
   Banrendi — Styles
   Design language inspired by Square: clean, minimal, professional fintech
   ========================================================================== */

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

:root {
  /* Brand Colors - Square-inspired blue palette */
  --color-primary: #006aff;
  --color-primary-dark: #0055cc;
  --color-primary-light: #cee7f3;
  
  /* Neutrals - Square gray scale */
  --color-white: #ffffff;
  --color-gray-03: #f7f7f7;
  --color-gray-05: #f2f2f2;
  --color-gray-13: #e0e0e0;
  --color-gray-15: #d9d9d9;
  --color-gray-30: #b3b3b3;
  --color-gray-55: #737373;
  --color-gray-75: #414141;
  --color-gray-90: #1a1a1a;
  --color-gray-99: #030303;
  --color-black: #030303;
  
  /* Semantic Colors */
  --color-success: #0bb634;
  --color-danger: #df3320;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md: 1.125rem;    /* 18px */
  --font-size-lg: 1.25rem;     /* 20px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 2.125rem;   /* 34px */
  --font-size-3xl: 2.75rem;    /* 44px */
  --font-size-4xl: 3.375rem;   /* 54px */
  --font-size-5xl: 4rem;       /* 64px */
  
  /* Spacing - tighter, more intentional */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --space-5xl: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 750px;
  --nav-height: 64px;
  --border-radius: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-gray-90);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-tap-highlight-color: rgba(0, 106, 255, 0.1);
  -webkit-text-size-adjust: 100%;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-2xl);
  }
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--color-black);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family);
  font-weight: 500;
  font-size: var(--font-size-base);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  gap: var(--space-sm);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 12px 24px;
  font-size: var(--font-size-base);
}

.btn-primary {
  position: relative;
  background: var(--color-primary);
  color: var(--color-white);
  transition: 
    transform 0.4s var(--ease-out-expo),
    box-shadow 0.4s var(--ease-out-expo);
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.6s var(--ease-out-expo);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 
    0 10px 30px rgba(0, 106, 255, 0.3),
    0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-90);
  border: 1px solid var(--color-gray-15);
  transition: 
    transform 0.4s var(--ease-out-expo),
    border-color 0.3s ease,
    background 0.3s ease,
    box-shadow 0.4s var(--ease-out-expo);
}

.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--color-gray-30);
  background: var(--color-gray-03);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}

.btn-ghost:active {
  transform: translateY(0);
}

.btn-ghost-light {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost-light:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
}

.btn-full {
  width: 100%;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-13);
  transition: all 0.4s var(--ease-out-expo);
}

.nav.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo-img {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--space-2xl);
}

.nav-links a {
  color: var(--color-gray-75);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-black);
  border-radius: 1px;
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  padding: var(--space-2xl);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-menu-links a {
  color: var(--color-black);
  font-size: var(--font-size-lg);
  font-weight: 500;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(
    165deg,
    var(--color-black) 0%,
    var(--color-black) 35%,
    #0a1628 55%,
    #0f2847 80%,
    #1a3a5c 100%
  );
  padding-top: var(--nav-height);
  overflow: hidden;
}

/* Parallax floating orbs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
}

.hero::before {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 106, 255, 0.3) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.hero::after {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(26, 58, 92, 0.5) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(30px, -30px) scale(1.05);
  }
  50% {
    transform: translate(-20px, 20px) scale(0.95);
  }
  75% {
    transform: translate(20px, 10px) scale(1.02);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: var(--space-4xl) 0;
}

.hero-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-30);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(10px);
  animation: labelReveal 0.6s var(--ease-out-expo) 0.1s forwards;
}

@keyframes labelReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, var(--font-size-5xl));
  color: var(--color-white);
  margin-bottom: var(--space-xl);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 400;
}

.hero-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-gray-30);
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-4xl);
  flex-wrap: wrap;
}

.hero .btn-primary {
  background: var(--color-white);
  color: var(--color-black);
}

.hero .btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 
    0 10px 40px rgba(255, 255, 255, 0.25),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero .btn-primary::before {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 0, 0, 0.05),
    transparent
  );
}

.hero .btn-ghost {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
  background: transparent;
}

.hero .btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* Language Toggle */
.lang-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.lang-toggle-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-right: var(--space-sm);
}

.lang-option {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 0.3s ease;
}

.lang-option.lang-active {
  color: var(--color-white);
}

.lang-option:hover {
  color: rgba(255, 255, 255, 0.8);
}

.lang-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.lang-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--color-white);
  border-radius: 50%;
  transition: transform 0.3s var(--ease-out-expo);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.lang-toggle.active .lang-toggle-thumb {
  transform: translateX(20px);
}

.hero-partners {
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-partners-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-gray-55);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.hero-partners-logos {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.partner-logo {
  height: 28px;
  width: auto;
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.partner-logo:hover {
  opacity: 1;
}

.partner-separator {
  color: var(--color-gray-55);
  font-size: var(--font-size-lg);
  font-weight: 300;
}

.hero-partners-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-gray-55);
  margin-top: var(--space-md);
}

.hero-gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to top, var(--color-white), transparent);
  display: none;
  pointer-events: none;
}

/* ---------- Sections ---------- */
.section {
  padding: var(--space-5xl) 0;
}

.section-light {
  background-color: var(--color-gray-03);
}

.section-dark {
  background-color: var(--color-black);
}

.section-header {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-4xl);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-55);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
}

.section-label-light {
  color: var(--color-gray-30);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, var(--font-size-3xl));
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
  font-weight: 400;
}

.section-title-light {
  color: var(--color-white);
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-gray-55);
  line-height: 1.6;
}

.section-subtitle-light {
  color: var(--color-gray-30);
}

/* ---------- Problem Cards ---------- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.problem-card {
  padding: var(--space-xl);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-13);
  transition: 
    transform 0.5s var(--ease-out-expo),
    box-shadow 0.5s var(--ease-out-expo),
    border-color 0.3s ease;
}

.problem-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--color-gray-15);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.08),
    0 8px 16px rgba(0, 0, 0, 0.06);
}

.problem-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-05);
  border-radius: var(--border-radius-md);
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}

.problem-card h3 {
  font-size: var(--font-size-md);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.problem-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-55);
  line-height: 1.6;
}

/* ---------- Solution Features ---------- */
.solution-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  margin-bottom: var(--space-5xl);
}

.solution-feature:last-child {
  margin-bottom: 0;
}

.solution-feature-reverse {
  direction: rtl;
}

.solution-feature-reverse > * {
  direction: ltr;
}

.solution-badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  background: rgba(0, 106, 255, 0.08);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-lg);
}

.badge-coming-soon {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-gray-55);
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  letter-spacing: 0.05em;
}

.solution-feature-content h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
  font-weight: 400;
}

.solution-feature-content > p {
  font-size: var(--font-size-base);
  color: var(--color-gray-55);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.feature-list li {
  font-size: var(--font-size-sm);
  color: var(--color-gray-75);
  padding-left: var(--space-lg);
  position: relative;
  line-height: 1.5;
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* ---------- Feature Card Mocks ---------- */
.solution-feature-visual {
  display: flex;
  justify-content: center;
}

.feature-card-mock {
  width: 100%;
  max-width: 380px;
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-13);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  transition: 
    transform 0.6s var(--ease-out-expo),
    box-shadow 0.6s var(--ease-out-expo);
}

.feature-card-mock:hover {
  transform: translateY(-12px) rotate(1deg);
  box-shadow: 
    0 32px 64px rgba(0, 0, 0, 0.12),
    0 16px 32px rgba(0, 0, 0, 0.08);
}

.feature-card-mock.mock-dark {
  background: var(--color-black);
  border-color: rgba(255, 255, 255, 0.1);
}

.mock-header {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--color-gray-03);
  border-bottom: 1px solid var(--color-gray-13);
}

.mock-dark .mock-header {
  background: rgba(255, 255, 255, 0.03);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gray-15);
}

.mock-dark .mock-dot {
  background: rgba(255, 255, 255, 0.1);
}

.mock-content {
  padding: 20px 16px;
}

.mock-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.mock-row-sm {
  padding: 4px 0;
}

.mock-row-sm span {
  font-size: var(--font-size-xs);
  color: var(--color-gray-55);
}

.mock-dark .mock-row-sm span {
  color: var(--color-gray-30);
}

.mock-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-75);
}

.mock-dark .mock-label {
  color: var(--color-gray-30);
}

.mock-value {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.mock-dark .mock-value {
  color: var(--color-white);
}

.mock-success {
  color: var(--color-success);
}

.mock-pending {
  color: var(--color-primary);
}

.mock-amount {
  font-size: var(--font-size-2xl);
  font-weight: 400;
  letter-spacing: -0.01em;
  padding: 4px 0;
}

.mock-dark .mock-amount {
  color: var(--color-white);
}

.mock-bar {
  height: 4px;
  background: var(--color-gray-13);
  border-radius: 2px;
  margin: 8px 0;
  overflow: hidden;
}

.mock-dark .mock-bar {
  background: rgba(255, 255, 255, 0.1);
}

.mock-bar-fill {
  height: 100%;
  background: var(--color-success);
  border-radius: 2px;
  transition: width 1.5s ease;
}

.mock-bar-accent {
  background: var(--color-primary);
}

.mock-divider {
  height: 1px;
  background: var(--color-gray-13);
  margin: 12px 0;
}

.mock-btn {
  display: block;
  text-align: center;
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-top: 16px;
}

/* Transactions in banking mock */
.mock-transaction {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.mock-tx-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mock-tx-in {
  background: rgba(11, 182, 52, 0.1);
}

.mock-tx-out {
  background: var(--color-gray-05);
}

.mock-tx-details {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.mock-tx-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.mock-tx-date {
  font-size: var(--font-size-xs);
  color: var(--color-gray-55);
}

.mock-tx-amount {
  font-size: var(--font-size-sm);
  font-weight: 500;
  flex-shrink: 0;
}

.mock-tx-positive {
  color: var(--color-success);
}

.mock-tx-negative {
  color: var(--color-gray-75);
}

/* ---------- Steps / How It Works ---------- */
.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-xl);
}

.step-card {
  flex: 1;
  max-width: 280px;
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  font-size: var(--font-size-base);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.step-card h3 {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.step-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-30);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 18px;
  color: rgba(255, 255, 255, 0.15);
}

/* ---------- Market Stats ---------- */
.market-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.market-stat-card {
  text-align: center;
  padding: var(--space-xl);
}

.market-stat-number {
  display: block;
  font-size: clamp(2rem, 4vw, var(--font-size-4xl));
  font-weight: 400;
  color: var(--color-black);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.market-stat-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-55);
  line-height: 1.5;
}

/* ---------- AI Chat Section ---------- */
.section-ai {
  background: linear-gradient(165deg, var(--color-gray-03) 0%, var(--color-white) 100%);
  padding: var(--space-4xl) 0;
}

.ai-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.ai-feature-content {
  max-width: 440px;
}

.ai-feature-content .section-title {
  font-size: clamp(1.75rem, 4vw, var(--font-size-2xl));
  margin-bottom: var(--space-md);
}

.ai-feature-text {
  font-size: var(--font-size-base);
  color: var(--color-gray-55);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.ai-platforms {
  display: flex;
  gap: var(--space-lg);
}

.ai-platform {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-75);
}

.ai-platform svg {
  color: var(--color-primary);
}

.ai-feature-visual {
  display: flex;
  justify-content: center;
}

.ai-chat-mock {
  width: 100%;
  max-width: 340px;
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-13);
  overflow: hidden;
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.08),
    0 8px 20px rgba(0, 0, 0, 0.04);
}

.ai-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-gray-03);
  border-bottom: 1px solid var(--color-gray-13);
}

.ai-chat-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-black);
}

.ai-chat-status {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

.ai-chat-messages {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 360px;
  max-height: 450px;
  overflow-y: auto;
}

.ai-message {
  max-width: 90%;
  opacity: 1;
  transform: translateY(0);
}

.ai-message-user {
  align-self: flex-end;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 14px;
  border-radius: 16px 16px 4px 16px;
}

.ai-message-user p {
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.ai-message-bot {
  align-self: flex-start;
  background: var(--color-gray-05);
  padding: 12px 14px;
  border-radius: 16px 16px 16px 4px;
}

@keyframes messageSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-typing {
  display: flex;
  gap: 4px;
  padding: 4px 0;
  animation: fadeOut 0.3s ease 2s forwards;
}

.ai-typing-loop {
  animation: typingLoop 8s ease-in-out infinite !important;
}

.ai-typing span {
  width: 8px;
  height: 8px;
  background: var(--color-gray-30);
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.ai-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}

@keyframes typingLoop {
  0%, 12.5% {
    opacity: 1;
    height: auto;
  }
  18.75%, 100% {
    opacity: 0;
    height: 0;
    padding: 0;
  }
}

@keyframes fadeOut {
  to { opacity: 0; height: 0; padding: 0; margin: 0; }
}

.ai-response {
  opacity: 0;
  animation: responseReveal 0.5s var(--ease-out-expo) 2.2s forwards;
}

.ai-response-loop {
  animation: responseLoop 8s ease-in-out infinite !important;
}

@keyframes responseLoop {
  0%, 18.75% {
    opacity: 0;
    transform: translateY(5px);
  }
  25%, 87.5% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(5px);
  }
}

@keyframes responseReveal {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-response p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-75);
  line-height: 1.5;
  margin-bottom: 8px;
}

.ai-data-list {
  list-style: none;
  margin: 8px 0;
  padding: 8px 12px;
  background: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-gray-13);
}

.ai-data-list li {
  font-size: var(--font-size-xs);
  color: var(--color-gray-75);
  padding: 4px 0;
  border-bottom: 1px solid var(--color-gray-05);
}

.ai-data-list li:last-child {
  border-bottom: none;
}

.ai-data-list strong {
  color: var(--color-black);
}

.ai-insight {
  background: rgba(0, 106, 255, 0.08);
  padding: 8px 12px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs) !important;
  color: var(--color-primary) !important;
}

.ai-insight strong {
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .ai-feature {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }
  
  .ai-feature-content {
    max-width: 100%;
  }
  
  .ai-platforms {
    justify-content: center;
  }
  
  .ai-chat-mock {
    max-width: 300px;
  }
}

/* ---------- Bilingual Section ---------- */
.section-accent {
  background: var(--color-black);
}

.bilingual-content {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.bilingual-text .section-title-light {
  font-size: clamp(2rem, 5vw, var(--font-size-4xl));
  letter-spacing: -0.01em;
}

.bilingual-body {
  font-size: var(--font-size-md);
  color: var(--color-gray-30);
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
}

.bilingual-toggle-demo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-option {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-55);
  transition: color var(--transition-base);
}

.lang-active {
  color: var(--color-white);
}

.lang-switch {
  width: 44px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-base);
}

.lang-switch:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lang-switch-knob {
  width: 18px;
  height: 18px;
  background: var(--color-white);
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform var(--transition-base);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.lang-switch.active .lang-switch-knob {
  transform: translateX(20px);
}

/* ---------- Values / About ---------- */
.values-grid {
  display: flex;
  justify-content: center;
}

.value-card {
  max-width: 700px;
  padding: var(--space-2xl);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-13);
  text-align: center;
}

.value-card .section-label {
  display: inline-block;
  margin-bottom: var(--space-md);
}

.value-card .section-title {
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-2xl);
}

.value-card p:last-child {
  font-size: var(--font-size-base);
  color: var(--color-gray-75);
  line-height: 1.6;
  margin: 0;
}

/* ---------- CTA / Waitlist ---------- */
.section-cta {
  background: var(--color-gray-03);
}

.cta-content {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, var(--font-size-3xl));
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
  font-weight: 400;
}

.cta-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-gray-55);
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
}

.cta-form {
  text-align: left;
}

.cta-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.cta-input {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-gray-90);
  background: var(--color-white);
  border: 1px solid var(--color-gray-15);
  border-radius: var(--border-radius);
  outline: none;
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.cta-input:focus {
  border-color: var(--color-primary);
}

.cta-input::placeholder {
  color: var(--color-gray-30);
}

.cta-select {
  color: var(--color-gray-30);
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23b3b3b3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.cta-select:has(option:checked:not([disabled])) {
  color: var(--color-gray-90);
}

.cta-form .btn {
  margin-top: var(--space-sm);
}

.cta-disclaimer {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-gray-30);
  margin-top: var(--space-md);
}

.cta-trades {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.cta-trade-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  color: var(--color-gray-55);
  transition: all 0.3s var(--ease-out-expo);
  border: 1px solid var(--color-gray-13);
}

.cta-trade-icon:hover {
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.cta-trades-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-55);
  margin-bottom: var(--space-xl);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-black);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-logo {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-white);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-gray-55);
  margin-top: var(--space-sm);
  line-height: 1.5;
}

.footer-col h4 {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-gray-55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-30);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-55);
}

/* ---------- Animations ---------- */

/* Enhanced easing curves */
:root {
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
}

/* Scroll-triggered fade in with blur */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(8px);
  transition: 
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo),
    filter 0.8s var(--ease-out-expo);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Staggered delays */
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }

/* Hero text cascade animation */
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  filter: blur(10px);
  transition: 
    opacity 0.6s var(--ease-out-expo),
    transform 0.6s var(--ease-out-expo),
    filter 0.6s var(--ease-out-expo);
}

.hero-title.animate .word {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.hero-title .word:nth-child(1) { transition-delay: 0.1s; }
.hero-title .word:nth-child(2) { transition-delay: 0.15s; }
.hero-title .word:nth-child(3) { transition-delay: 0.2s; }
.hero-title .word:nth-child(4) { transition-delay: 0.25s; }
.hero-title .word:nth-child(5) { transition-delay: 0.3s; }
.hero-title .word:nth-child(6) { transition-delay: 0.35s; }
.hero-title .word:nth-child(7) { transition-delay: 0.4s; }
.hero-title .word:nth-child(8) { transition-delay: 0.45s; }
.hero-title .word:nth-child(9) { transition-delay: 0.5s; }
.hero-title .word:nth-child(10) { transition-delay: 0.55s; }

/* Hero subtitle fade */
.hero-subtitle {
  opacity: 0;
  transform: translateY(20px);
  transition: 
    opacity 0.8s var(--ease-out-expo) 0.5s,
    transform 0.8s var(--ease-out-expo) 0.5s;
}

.hero-content.animate .hero-subtitle {
  opacity: 1;
  transform: translateY(0);
}

/* Hero actions stagger */
.hero-actions {
  opacity: 0;
  transform: translateY(20px);
  transition: 
    opacity 0.8s var(--ease-out-expo) 0.65s,
    transform 0.8s var(--ease-out-expo) 0.65s;
}

.hero-content.animate .hero-actions {
  opacity: 1;
  transform: translateY(0);
}

/* Hero language toggle fade */
.lang-toggle-wrapper {
  opacity: 0;
  transform: translateY(20px);
  transition: 
    opacity 0.8s var(--ease-out-expo) 0.75s,
    transform 0.8s var(--ease-out-expo) 0.75s;
}

.hero-content.animate .lang-toggle-wrapper {
  opacity: 1;
  transform: translateY(0);
}

/* Hero partners fade */
.hero-partners {
  opacity: 0;
  transform: translateY(20px);
  transition: 
    opacity 0.8s var(--ease-out-expo) 0.9s,
    transform 0.8s var(--ease-out-expo) 0.9s;
}

.hero-content.animate .hero-partners {
  opacity: 1;
  transform: translateY(0);
}

/* Slide in from sides */
.slide-in-left {
  opacity: 0;
  transform: translateX(-40px);
  filter: blur(4px);
  transition: 
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo),
    filter 0.8s var(--ease-out-expo);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(40px);
  filter: blur(4px);
  transition: 
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo),
    filter 0.8s var(--ease-out-expo);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

/* Scale in animation */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  filter: blur(4px);
  transition: 
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo),
    filter 0.8s var(--ease-out-expo);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .solution-feature {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .solution-feature-reverse {
    direction: ltr;
  }
  
  .market-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --nav-height: 56px;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-bottom: var(--space-4xl);
  }

  .hero-partners-logos {
    gap: var(--space-md);
    flex-wrap: wrap;
  }

  .partner-logo {
    height: 22px;
  }

  .lang-toggle-wrapper {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
  }

  .lang-toggle-label {
    width: 100%;
    text-align: center;
    margin-right: 0;
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-xs);
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .solution-feature-content {
    text-align: center;
  }

  .feature-list {
    text-align: left;
  }

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    transform: rotate(90deg);
    padding-top: 0;
  }

  .market-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .market-stat-card {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-13);
  }

  .market-stat-card:last-child {
    border-bottom: none;
  }

  .ai-chat-mock {
    max-width: 100%;
  }

  .ai-chat-messages {
    min-height: 300px;
    max-height: 380px;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .cta-form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .hero-content {
    padding: var(--space-3xl) 0;
  }

  .hero-title {
    font-size: 2rem;
    line-height: 1.1;
  }

  .hero-actions {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 1.5rem;
    line-height: 1.2;
  }

  .solution-badge {
    font-size: 0.625rem;
    padding: 4px 10px;
  }

  .solution-feature-content h3 {
    font-size: var(--font-size-xl);
  }

  .feature-card-mock {
    max-width: 100%;
  }

  .ai-chat-mock {
    border-radius: var(--border-radius-md);
  }

  .ai-message-user,
  .ai-message-bot {
    max-width: 95%;
  }

  .mock-amount {
    font-size: var(--font-size-xl);
  }

  .market-stat-number {
    font-size: 2.5rem;
  }

  .cta-title {
    font-size: 1.5rem;
  }

  .lang-toggle-wrapper {
    font-size: var(--font-size-xs);
  }

  /* Ensure touch targets are at least 44x44px */
  .btn-sm {
    min-height: 44px;
  }

  .nav-toggle {
    min-width: 44px;
    min-height: 44px;
  }

  .lang-toggle-wrapper {
    justify-content: center;
    gap: var(--space-xs);
  }

  .lang-toggle-label {
    font-size: var(--font-size-xs);
  }

  .lang-option {
    font-size: 11px;
    padding: var(--space-xs);
    min-width: 32px;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .lang-toggle {
    min-width: 44px;
    height: 24px;
  }

  .lang-toggle-thumb {
    width: 18px;
    height: 18px;
  }

  /* Better spacing for mobile forms */
  .cta-input,
  .cta-select {
    min-height: 48px;
    font-size: 16px; /* Prevents zoom on iOS */
  }
}