/* ============================================
   FundedNext Component Library
   Based on Global Design System from Figma
   ============================================ */

/* ============================================
   BUTTON COMPONENT
   Variants: primary, secondary, ghost, danger, link
   Sizes: sm (30px), md (36px), lg (44px)
   ============================================ */
.fn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  font-family: var(--font-family);
  font-weight: var(--font-semibold);
  border: 1px solid transparent;
  border-radius: var(--radius-8);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.fn-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--action-focus-ring);
}
.fn-btn:disabled, .fn-btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Sizes */
.fn-btn--sm { height: 30px; padding: 0 var(--space-6); font-size: var(--text-12); border-radius: var(--radius-6); }
.fn-btn--md { height: 36px; padding: 0 var(--space-8); font-size: var(--text-14); }
.fn-btn--lg { height: 44px; padding: 0 var(--space-12); font-size: var(--text-16); }

/* Primary */
.fn-btn--primary {
  background: var(--action-primary);
  color: var(--color-white-100);
  border-color: var(--action-primary);
}
.fn-btn--primary:hover { background: var(--action-primary-hover); border-color: var(--action-primary-hover); }
.fn-btn--primary:active { background: var(--action-primary-active); border-color: var(--action-primary-active); }

/* Secondary (Outline) */
.fn-btn--secondary {
  background: transparent;
  color: var(--action-primary);
  border-color: var(--color-purple-200);
}
.fn-btn--secondary:hover { background: var(--color-purple-25); border-color: var(--action-primary); }
.fn-btn--secondary:active { background: var(--color-purple-50); }

/* Ghost */
.fn-btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: transparent;
}
.fn-btn--ghost:hover { background: var(--color-grey-50); }
.fn-btn--ghost:active { background: var(--color-grey-100); }

/* Danger */
.fn-btn--danger {
  background: var(--status-error);
  color: var(--color-white-100);
  border-color: var(--status-error);
}
.fn-btn--danger:hover { background: var(--color-red-500); border-color: var(--color-red-500); }

/* Link Button */
.fn-btn--link {
  background: transparent;
  color: var(--text-link);
  border: none;
  padding: 0;
  height: auto;
  font-weight: var(--font-medium);
}
.fn-btn--link:hover { color: var(--text-link-hover); text-decoration: underline; }

/* ============================================
   INPUT COMPONENT
   States: default, hover, focused, error, disabled
   ============================================ */
.fn-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.fn-input-label {
  font-size: var(--text-13);
  font-weight: var(--font-medium);
  color: var(--text-primary);
}
.fn-input {
  height: 40px;
  padding: 0 var(--space-6);
  font-family: var(--font-family);
  font-size: var(--text-14);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-8);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}
.fn-input::placeholder { color: var(--text-tertiary); }
.fn-input:hover { border-color: var(--border-strong); }
.fn-input:focus { border-color: var(--border-focused); box-shadow: 0 0 0 3px var(--action-focus-ring); }
.fn-input--error { border-color: var(--border-error); }
.fn-input--error:focus { box-shadow: 0 0 0 3px var(--color-red-op-20); }
.fn-input:disabled { background: var(--bg-input-disabled); color: var(--text-disabled); cursor: not-allowed; }
.fn-input-hint {
  font-size: var(--text-12);
  color: var(--text-tertiary);
}
.fn-input-error {
  font-size: var(--text-12);
  color: var(--status-error-text);
}

/* Textarea */
.fn-textarea {
  min-height: 80px;
  padding: var(--space-4) var(--space-6);
  resize: vertical;
}

/* ============================================
   CHECKBOX & RADIO COMPONENT
   ============================================ */
.fn-checkbox,
.fn-radio {
  display: inline-flex;
  align-items: flex-start;
  gap: var(--space-4);
  cursor: pointer;
  font-size: var(--text-14);
  color: var(--text-primary);
}
.fn-checkbox input,
.fn-radio input {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-input);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.fn-checkbox input { border-radius: var(--radius-4); }
.fn-radio input { border-radius: 50%; }
.fn-checkbox input:checked,
.fn-radio input:checked {
  background: var(--action-primary);
  border-color: var(--action-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='white'%3E%3Cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
}
.fn-radio input:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='4' fill='white'/%3E%3C/svg%3E");
}
.fn-checkbox input:focus-visible,
.fn-radio input:focus-visible {
  box-shadow: 0 0 0 3px var(--action-focus-ring);
}
.fn-checkbox input:disabled,
.fn-radio input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.fn-checkbox__text,
.fn-radio__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.fn-checkbox__title,
.fn-radio__title { font-weight: var(--font-medium); font-size: var(--text-14); }
.fn-checkbox__body,
.fn-radio__body { font-size: var(--text-13); color: var(--text-secondary); }

/* ============================================
   ALERT COMPONENT
   Variants: info, primary, error, warning, success
   ============================================ */
.fn-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
  padding: var(--space-8);
  border-radius: var(--radius-8);
  border: 1px solid;
  font-size: var(--text-14);
  line-height: var(--lh-20);
}
.fn-alert__icon { flex-shrink: 0; width: 20px; height: 20px; margin-top: 1px; }
.fn-alert__content { flex: 1; display: flex; flex-direction: column; gap: var(--space-2); }
.fn-alert__title { font-weight: var(--font-semibold); }
.fn-alert__message { color: inherit; opacity: 0.85; }
.fn-alert__actions { display: flex; gap: var(--space-4); margin-top: var(--space-2); }
.fn-alert__actions a { font-weight: var(--font-semibold); font-size: var(--text-13); text-decoration: underline; }
.fn-alert__close {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}
.fn-alert__close:hover { opacity: 1; }

.fn-alert--info { background: var(--status-info-bg); border-color: var(--status-info-border); color: var(--status-info-text); }
.fn-alert--primary { background: var(--color-purple-25); border-color: var(--color-purple-200); color: var(--color-purple-800); }
.fn-alert--error { background: var(--status-error-bg); border-color: var(--status-error-border); color: var(--status-error-text); }
.fn-alert--warning { background: var(--status-warning-bg); border-color: var(--status-warning-border); color: var(--status-warning-text); }
.fn-alert--success { background: var(--status-success-bg); border-color: var(--status-success-border); color: var(--status-success-text); }

/* ============================================
   TOAST COMPONENT
   ============================================ */
.fn-toast-container {
  position: fixed;
  top: var(--space-8);
  right: var(--space-8);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.fn-toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-10);
  box-shadow: var(--shadow-xl);
  min-width: 320px;
  max-width: 420px;
  animation: fn-toast-in 0.3s ease;
}
.fn-toast__content { flex: 1; }
.fn-toast__title { font-weight: var(--font-semibold); font-size: var(--text-14); margin-bottom: 2px; }
.fn-toast__message { font-size: var(--text-13); color: var(--text-secondary); }
.fn-toast--success .fn-toast__icon { color: var(--status-success); }
.fn-toast--error .fn-toast__icon { color: var(--status-error); }
.fn-toast--warning .fn-toast__icon { color: var(--status-warning); }

@keyframes fn-toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================
   TOOLTIP COMPONENT
   ============================================ */
.fn-tooltip {
  position: relative;
  display: inline-flex;
}
.fn-tooltip__content {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-4);
  background: var(--color-grey-700);
  color: var(--color-white-100);
  font-size: var(--text-12);
  font-weight: var(--font-medium);
  border-radius: var(--radius-6);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 100;
}
.fn-tooltip__content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--color-grey-700);
}
.fn-tooltip:hover .fn-tooltip__content { opacity: 1; }

/* ============================================
   BADGE COMPONENT
   ============================================ */
.fn-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 2px var(--space-4);
  font-size: var(--text-12);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  line-height: var(--lh-16);
}
.fn-badge--primary { background: var(--color-purple-25); color: var(--color-purple-700); }
.fn-badge--success { background: var(--status-success-bg); color: var(--status-success-text); }
.fn-badge--warning { background: var(--status-warning-bg); color: var(--status-warning-text); }
.fn-badge--error   { background: var(--status-error-bg); color: var(--status-error-text); }
.fn-badge--info    { background: var(--status-info-bg); color: var(--status-info-text); }
.fn-badge--grey    { background: var(--color-grey-50); color: var(--color-grey-600); }

/* ============================================
   TAB COMPONENT
   ============================================ */
.fn-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-default);
  gap: var(--space-12);
}
.fn-tab {
  padding: var(--space-4) 0;
  font-size: var(--text-14);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: -1px;
}
.fn-tab:hover { color: var(--text-primary); }
.fn-tab--active {
  color: var(--action-primary);
  border-bottom-color: var(--action-primary);
  font-weight: var(--font-semibold);
}

/* ============================================
   DROPDOWN / SELECT COMPONENT
   ============================================ */
.fn-select {
  position: relative;
}
.fn-select select {
  appearance: none;
  height: 40px;
  width: 100%;
  padding: 0 var(--space-16) 0 var(--space-6);
  font-family: var(--font-family);
  font-size: var(--text-14);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-8);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}
.fn-select select:hover { border-color: var(--border-strong); }
.fn-select select:focus { border-color: var(--border-focused); box-shadow: 0 0 0 3px var(--action-focus-ring); outline: none; }
.fn-select::after {
  content: '';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--text-secondary);
  pointer-events: none;
}

/* ============================================
   DROPDOWN MENU
   ============================================ */
.fn-dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-10);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2) 0;
  z-index: 50;
}
.fn-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-14);
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.fn-dropdown-item:hover { background: var(--color-grey-50); }
.fn-dropdown-item--active { background: var(--color-purple-25); color: var(--action-primary); }

/* ============================================
   FILTER COMPONENT
   ============================================ */
.fn-filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.fn-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 32px;
  padding: 0 var(--space-6);
  font-size: var(--text-13);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.fn-filter-chip:hover { border-color: var(--border-strong); color: var(--text-primary); }
.fn-filter-chip--active {
  background: var(--color-purple-25);
  border-color: var(--action-primary);
  color: var(--action-primary);
}
.fn-filter-chip__remove {
  display: inline-flex;
  margin-left: var(--space-1);
  cursor: pointer;
  opacity: 0.6;
}
.fn-filter-chip__remove:hover { opacity: 1; }

/* ============================================
   SIDE NAVIGATION
   ============================================ */
.fn-sidenav {
  width: 240px;
  background: var(--bg-card);
  border-right: 1px solid var(--border-default);
  padding: var(--space-6) 0;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.fn-sidenav__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-14);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.fn-sidenav__item:hover { background: var(--color-purple-25); color: var(--text-primary); }
.fn-sidenav__item--active {
  background: var(--action-primary);
  color: var(--color-white-100);
}
.fn-sidenav__item--active:hover { background: var(--action-primary-hover); }
.fn-sidenav__icon { width: 20px; height: 20px; flex-shrink: 0; opacity: 0.7; }
.fn-sidenav__item--active .fn-sidenav__icon { opacity: 1; }

.fn-sidenav__section {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-12);
  font-weight: var(--font-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.fn-sidenav__divider {
  height: 1px;
  background: var(--border-default);
  margin: var(--space-4) 0;
}

/* Accordion nav item */
.fn-sidenav__accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.fn-sidenav__accordion-arrow {
  transition: transform var(--transition-fast);
}
.fn-sidenav__accordion-trigger[aria-expanded="true"] .fn-sidenav__accordion-arrow {
  transform: rotate(180deg);
}
.fn-sidenav__accordion-content {
  padding-left: var(--space-16);
}

/* ============================================
   TOP NAVIGATION
   ============================================ */
.fn-topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 var(--space-12);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-default);
}
.fn-topnav__left {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.fn-topnav__logo { height: 24px; }
.fn-topnav__search {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 36px;
  padding: 0 var(--space-6);
  background: var(--color-grey-50);
  border: 1px solid transparent;
  border-radius: var(--radius-8);
  font-size: var(--text-13);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.fn-topnav__search:hover { border-color: var(--border-default); }
.fn-topnav__right {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.fn-topnav__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-8);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.fn-topnav__icon-btn:hover { background: var(--color-grey-50); color: var(--text-primary); }

/* ============================================
   PROFILE MENU
   ============================================ */
.fn-profile-menu {
  position: relative;
}
.fn-profile-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-8);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  background: none;
}
.fn-profile-trigger:hover { background: var(--color-grey-50); }
.fn-profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--action-primary);
  color: var(--color-white-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-13);
  font-weight: var(--font-semibold);
}

/* ============================================
   GRID & LIST VIEW
   ============================================ */
.fn-grid {
  display: grid;
  gap: var(--space-8);
}
.fn-grid--2 { grid-template-columns: repeat(2, 1fr); }
.fn-grid--3 { grid-template-columns: repeat(3, 1fr); }
.fn-grid--4 { grid-template-columns: repeat(4, 1fr); }

.fn-list {
  display: flex;
  flex-direction: column;
}
.fn-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}
.fn-list__item:hover { background: var(--color-grey-25); }
.fn-list__item:last-child { border-bottom: none; }

/* ============================================
   DATE PICKER (basic styling)
   ============================================ */
.fn-datepicker {
  position: relative;
}
.fn-datepicker input[type="date"] {
  height: 40px;
  width: 100%;
  padding: 0 var(--space-6);
  font-family: var(--font-family);
  font-size: var(--text-14);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-8);
  outline: none;
  transition: border-color var(--transition-fast);
}
.fn-datepicker input[type="date"]:focus {
  border-color: var(--border-focused);
  box-shadow: 0 0 0 3px var(--action-focus-ring);
}

/* ============================================
   CARD (utility wrapper)
   ============================================ */
.fn-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-10);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
}
.fn-card--elevated { box-shadow: var(--shadow-lg); }
.fn-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}
.fn-card__title {
  font-size: var(--text-18);
  font-weight: var(--font-semibold);
}

/* ============================================
   OTP / CODE INPUT
   ============================================ */
.fn-otp-group {
  display: flex;
  gap: var(--space-4);
}
.fn-otp-input {
  width: 48px;
  height: 48px;
  text-align: center;
  font-family: var(--font-family);
  font-size: var(--text-24);
  font-weight: var(--font-semibold);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-8);
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}
.fn-otp-input:focus {
  border-color: var(--border-focused);
  box-shadow: 0 0 0 3px var(--action-focus-ring);
}
.fn-otp-input--filled { border-color: var(--action-primary); }

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
  .fn-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .fn-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .fn-sidenav { width: 100%; border-right: none; border-bottom: 1px solid var(--border-default); }
}
@media (max-width: 480px) {
  .fn-grid--4, .fn-grid--3, .fn-grid--2 { grid-template-columns: 1fr; }
}