/* ========================================
   AYASEND UNIFORM FIELD SYSTEM v1.0
   Premium fintech-grade form styling
   ======================================== */

:root {
  /* Field Dimensions - All fields identical */
  --field-height: 56px;
  --field-radius: 12px;
  --field-padding-x: 16px;
  --field-padding-y: 16px;
  
  /* Spacing System */
  --field-gap: 20px;
  --label-margin: 8px;
  --section-divider: 24px;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'SF Pro Display', sans-serif;
  --label-size: 15px;
  --label-weight: 600;
  --input-size: 16px;
  --input-weight: 500;
  
  /* Colors - Light Mode */
  --label-color: #1E293B;
  --label-secondary: #64748B;
  --input-text: #0F172A;
  --input-placeholder: #94A3B8;
  --border-default: #E2E8F0;
  --border-hover: #CBD5E1;
  --border-focus: #3B82F6;
  --bg-field: #FFFFFF;
  --shadow-focus: rgba(59, 130, 246, 0.15);
  
  /* Shadow Depth System */
  --shadow-level-1: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.02);
  --shadow-level-2: 0 2px 4px rgba(0, 0, 0, 0.06), 0 4px 8px rgba(0, 0, 0, 0.04);
  --shadow-level-3: 0 4px 8px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.06);
  
  /* Colors - Premium Accents */
  --accent-blue: #3B82F6;
  --accent-cyan: #06B6D4;
}

html.dark {
  --label-color: #F1F5F9;
  --label-secondary: #94A3B8;
  --input-text: #F8FAFC;
  --input-placeholder: #64748B;
  --border-default: #334155;
  --border-hover: #475569;
  --border-focus: #60A5FA;
  --bg-field: #1E293B;
  --shadow-focus: rgba(96, 165, 250, 0.20);
}

/* ========================================
   BASE FORM CONTAINER
   ======================================== */

.send-from-section {
  display: flex;
  flex-direction: column;
  gap: var(--field-gap);
}

/* ========================================
   UNIFORM FIELD WRAPPER
   ======================================== */

.uniform-field {
  display: flex;
  flex-direction: column;
  gap: var(--label-margin);
}

/* ========================================
   LABELS - Standardized Typography
   ======================================== */

.uniform-label {
  font-family: var(--font-family);
  font-size: var(--label-size);
  font-weight: var(--label-weight);
  color: var(--label-color);
  letter-spacing: -0.01em;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}

.uniform-label-secondary {
  font-size: 13px;
  font-weight: 500;
  color: var(--label-secondary);
  margin-left: 4px;
}

/* Label hover effect when field is focused */
.uniform-field:focus-within .uniform-label {
  color: var(--accent-blue);
  transform: translateX(2px);
}

/* Label icon styling */
.uniform-label .label-icon {
  font-size: 16px;
  opacity: 0.8;
}

/* ========================================
   INPUT FIELDS - Uniform Sizing
   ======================================== */

.uniform-input,
.uniform-select,
.uniform-button {
  font-family: var(--font-family);
  height: var(--field-height);
  border-radius: var(--field-radius);
  padding: 0 var(--field-padding-x);
  background: var(--bg-field);
  border: 2px solid var(--border-default);
  color: var(--input-text);
  font-size: var(--input-size);
  font-weight: var(--input-weight);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
  width: 100%;
  outline: none;
}

/* Placeholder styling */
.uniform-input::placeholder {
  color: var(--input-placeholder);
  font-weight: 400;
}

/* Hover state - Level 1 Shadow */
.uniform-input:hover:not(:focus),
.uniform-select:hover:not(:focus),
.uniform-button:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-level-1);
  transform: translateY(-1px);
}

/* Focus state - Level 3 Shadow with Glow */
.uniform-input:focus,
.uniform-select:focus,
.uniform-button:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--shadow-focus), var(--shadow-level-2);
  outline: none;
  transform: translateY(-1px);
}

/* Disabled state */
.uniform-input:disabled,
.uniform-select:disabled,
.uniform-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: #F8FAFC;
}

html.dark .uniform-input:disabled,
html.dark .uniform-select:disabled {
  background: #0F172A;
}

/* ========================================
   SELECT DROPDOWN - Flag Support
   ======================================== */

.uniform-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='%2364748B'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px 20px;
  padding-right: 40px;
  text-align: center;
  line-height: var(--field-height);
}

/* Select with flag icon */
.uniform-select.has-flag {
  padding-left: 56px;
  background-repeat: no-repeat, no-repeat;
  background-position: 16px center, right 12px center;
  background-size: 32px 24px, 20px 20px;
  text-align: center;
}

html.dark .uniform-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='%2394A3B8'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
}

/* ========================================
   COUNTRY PICKER BUTTON
   ======================================== */

.uniform-country-picker {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 var(--field-padding-x);
  height: var(--field-height);
  background: var(--bg-field);
  border: 2px solid var(--border-default);
  border-radius: var(--field-radius);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-family);
  font-size: var(--input-size);
  font-weight: var(--input-weight);
  color: var(--input-text);
  width: 100%;
  box-sizing: border-box;
}

.uniform-country-picker:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-level-1);
  transform: translateY(-1px);
}

.uniform-country-picker:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--shadow-focus), var(--shadow-level-2);
  outline: none;
  transform: translateY(-1px);
}

.country-picker-flag,
.uniform-country-picker img,
.uniform-country-picker img.country-picker-flag {
  width: 32px !important;
  height: 24px !important;
  max-width: 32px !important;
  max-height: 24px !important;
  min-width: 32px !important;
  min-height: 24px !important;
  border-radius: 4px !important;
  object-fit: contain !important;
  flex-shrink: 0 !important;
  display: block !important;
  font-size: inherit !important;
}

.country-picker-text {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.country-picker-name {
  font-weight: 600;
  display: inline-block;
  line-height: 1.2;
}

.country-picker-currency {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  background: #3B82F6;
  color: white;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(59, 130, 246, 0.3);
  line-height: 1.2;
  height: 26px;
  flex-shrink: 0;
}

.country-picker-chevron {
  width: 20px;
  height: 20px;
  color: var(--label-secondary);
  flex-shrink: 0;
  position: absolute;
  right: 16px;
}

/* ========================================
   AMOUNT INPUT - With Icons & Badges
   ======================================== */

.uniform-amount-box {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.uniform-amount-input {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: var(--field-padding-x);
  padding-right: var(--field-padding-x);
  padding-top: 0;
  padding-bottom: 0;
  height: var(--field-height);
  background: var(--bg-field);
  border: 2px solid var(--border-default);
  border-radius: var(--field-radius);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  flex-wrap: nowrap;
  box-sizing: border-box;
}

.uniform-amount-input:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-level-1);
  transform: translateY(-1px);
}

.uniform-amount-input:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--shadow-focus), var(--shadow-level-2);
  transform: translateY(-1px);
}

.amount-icon {
  font-size: 18px;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: none;
}

.amount-prefix {
  font-family: var(--font-family);
  font-size: var(--input-size);
  font-weight: 600;
  color: var(--label-secondary);
  flex-shrink: 0;
  display: inline-block;
  line-height: 1.2;
  position: relative;
  z-index: 1;
}

/* Lock send amount prefix - ensure it displays correctly */
#send-currency-symbol {
  min-width: 16px;
  text-align: center;
  visibility: visible !important;
  opacity: 1 !important;
}

/* Ensure receive amount prefix displays correctly */
#receive-currency-symbol {
  min-width: 30px;
  text-align: left;
  visibility: visible !important;
  opacity: 1 !important;
}

/* Ensure amount trigger containers don't overlap */
.amount-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  height: 56px;
  position: relative;
  overflow: hidden;
}

/* Make sure input doesn't show through/behind prefix */
.amount-trigger input.amount-input {
  background: transparent;
  z-index: 2;
}

.uniform-amount-input input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-family);
  font-size: var(--input-size);
  font-weight: var(--input-weight);
  color: var(--input-text);
  outline: none;
  padding: 0 12px 0 0;
  min-width: 0;
  text-align: center;
  line-height: var(--field-height);
  height: var(--field-height);
}

.uniform-amount-input input::placeholder {
  color: var(--input-placeholder);
  text-align: center;
}

/* Dark mode text fix - ensure visibility */
html.dark .uniform-amount-input input {
  color: #F8FAFC !important;
}

html.dark .uniform-amount-input input::placeholder {
  color: #64748B !important;
}

/* Remove spinner arrows */
.uniform-amount-input input::-webkit-outer-spin-button,
.uniform-amount-input input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.uniform-amount-input input[type=number] {
  -moz-appearance: textfield;
}

.amount-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  background: #F1F5F9;
  color: var(--label-color);
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  flex-shrink: 0;
  min-width: 48px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  line-height: 1;
  height: auto;
}

html.dark .amount-badge {
  background: #334155;
  color: var(--label-color);
}

/* ========================================
   QUICK AMOUNT SHORTCUTS
   ======================================== */

.amount-shortcuts {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.amount-shortcut-btn {
  flex: 1;
  min-width: 60px;
  height: 36px;
  border-radius: 8px;
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
  color: #64748B;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.amount-shortcut-btn:hover {
  background: #F1F5F9;
  border-color: #CBD5E1;
  color: #475569;
  transform: translateY(-2px);
  box-shadow: var(--shadow-level-1);
}

.amount-shortcut-btn:active,
.amount-shortcut-btn.active {
  background: #3B82F6;
  border-color: #3B82F6;
  transform: scale(0.98);
  color: white;
}

html.dark .amount-shortcut-btn {
  background: #1E293B;
  border-color: #334155;
  color: #94A3B8;
}

html.dark .amount-shortcut-btn:hover {
  background: #334155;
  border-color: #475569;
  color: #CBD5E1;
}

html.dark .amount-shortcut-btn:active,
html.dark .amount-shortcut-btn.active {
  background: #3B82F6;
  border-color: #3B82F6;
  color: white;
}

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

@media (max-width: 640px) {
  :root {
    --field-height: 52px;
    --field-padding-x: 14px;
    --field-gap: 18px;
    --label-size: 14px;
    --input-size: 16px; /* Keep at 16px to prevent iOS zoom */
  }
  
  .country-picker-currency {
    font-size: 11px;
    padding: 2px 6px;
  }
  
  .amount-shortcut-btn {
    min-width: 55px;
    height: 34px;
    font-size: 13px;
  }
}

/* ========================================
   COUNTRY PICKER CHEVRON ROTATION
   ======================================== */

.country-picker-chevron {
  transition: transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.country-picker-chevron.rotated {
  transform: rotate(180deg);
}

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

@media (prefers-reduced-motion: reduce) {
  .uniform-input,
  .uniform-select,
  .uniform-button,
  .uniform-country-picker,
  .uniform-amount-input,
  .amount-shortcut-btn,
  .country-picker-chevron {
    transition: none !important;
  }
}

/* Focus visible for keyboard navigation */
.uniform-input:focus-visible,
.uniform-select:focus-visible,
.uniform-button:focus-visible,
.uniform-country-picker:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .uniform-input,
  .uniform-select,
  .uniform-button,
  .uniform-country-picker,
  .uniform-amount-input {
    border-width: 3px;
  }
}

/* ========================================
   POPULAR CORRIDORS - FLAG PAIR ROW
   Premium mobile + desktop layout
   ======================================== */

/* Mobile-first: Clean vertical centered layout */
.corridor-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem; /* 16px vertical gap between corridors */
  margin-top: 0.75rem; /* 12px spacing from above */
}

/* Desktop: Horizontal multi-column layout (keep as-is) */
@media (min-width: 768px) {
  .corridor-grid {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem; /* 32px horizontal gap on desktop */
    margin-top: 1rem;
  }
}

.corridor-tag {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem; /* 4px gap between flags and name */
  padding: 0;
  background: transparent;
  border: none;
  pointer-events: none;
  cursor: default;
  box-shadow: none;
  text-align: center;
}

/* ===== MOBILE-ONLY VISUAL POLISH ===== */
@media (max-width: 767px) {
  .corridor-tag {
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(249, 250, 251, 0.9) 100%);
    border-radius: 16px;
    box-shadow: 
      0 2px 8px rgba(0, 0, 0, 0.04),
      0 1px 3px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    cursor: pointer;
    border: 1px solid rgba(226, 232, 240, 0.8);
    -webkit-tap-highlight-color: transparent;
    width: 100%;
    max-width: 160px;
  }
  
  .corridor-tag:active {
    transform: scale(0.96);
    box-shadow: 
      0 1px 4px rgba(0, 0, 0, 0.06),
      0 0 0 2px rgba(0, 229, 255, 0.15);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(239, 246, 255, 1) 100%);
  }
  
  html.dark .corridor-tag {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(51, 65, 85, 0.95) 100%);
    border-color: rgba(71, 85, 105, 0.5);
    box-shadow: 
      0 2px 8px rgba(0, 0, 0, 0.2),
      0 1px 3px rgba(0, 0, 0, 0.3);
  }
  
  html.dark .corridor-tag:active {
    background: linear-gradient(135deg, rgba(30, 41, 59, 1) 0%, rgba(59, 130, 246, 0.15) 100%);
    box-shadow: 
      0 1px 4px rgba(0, 0, 0, 0.3),
      0 0 0 2px rgba(0, 229, 255, 0.2);
  }
  
  /* Make corridor grid 2 columns on mobile - full width */
  .corridor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
    margin: 0;
    padding: 0;
  }
}

.corridor-flags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem; /* 8px gap between flag-arrow-flag */
}

.corridor-tag img.corridor-flag {
  width: 24px !important;
  height: 16px !important;
  min-width: 24px !important;
  max-width: 24px !important;
  min-height: 16px !important;
  max-height: 16px !important;
  border-radius: 2px;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.corridor-arrow {
  color: #94A3B8;
  font-size: 0.875rem; /* 14px */
  font-weight: 400;
  line-height: 1;
  opacity: 0.6;
}

.corridor-name {
  font-weight: 500;
  color: #64748B;
  letter-spacing: -0.01em;
  font-size: 0.75rem; /* 12px */
  text-align: center;
  line-height: 1.2;
  margin-top: 0;
}

html.dark .corridor-name {
  color: #94A3B8;
}

html.dark .corridor-arrow {
  color: #64748B;
  opacity: 0.5;
}

html.dark .corridor-tag img.corridor-flag {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}