/*===========================================================
   TIC-TAC GLOBAL DESIGN SYSTEM
   Modern, Unified, Production-Ready SaaS/Fintech Interface

   Applied consistently across ALL pages
=================================================*/

/* =================================== */
/*  DESIGN TOKENS - CSS VARIABLES
/* =================================== */

:root {
  /* PRIMARY COLORS */
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #3B82F6;
  --color-primary-lighter: #DBEAFE;

  /* SEMANTIC COLORS */
  --color-success: #10B981;
  --color-success-dark: #059669;
  --color-success-light: #D1FAE5;

  --color-error: #EF4444;
  --color-error-dark: #DC2626;
  --color-error-light: #FEE2E2;

  --color-warning: #F59E0B;
  --color-warning-dark: #D97706;
  --color-warning-light: #FEF3C7;

  --color-info: #3B82F6;
  --color-info-light: #DBEAFE;

  /* NEUTRAL COLORS */
  --color-text-dark: #0F172A;
  --color-text-strong: #1F2937;
  --color-text-body: #475569;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;

  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-divider: #E5E7EB;

  --color-bg-page: #F8FAFC;
  --color-bg-light: #F3F4F6;
  --color-bg-card: #FFFFFF;

  /* SECONDARY COLORS */
  --color-secondary: #6366F1;
  --color-secondary-dark: #4F46E5;
  --color-accent: #F59E0B;

  /* SPACING SYSTEM */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 40px;
  --spacing-4xl: 48px;
  --spacing-5xl: 56px;
  --spacing-6xl: 64px;

  /* BORDER RADIUS */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* SHADOWS */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* TRANSITIONS */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-INDEX */
  --z-dropdown: 100;
  --z-modal: 1000;
  --z-tooltip: 1100;
  --z-notification: 1200;
}

/* =================================== */
/*  GLOBAL STYLES
/* =================================== */

* {
  box-sizing: border-box;
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg-page);
  color: var(--color-text-body);
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.25px;
}

/* =================================== */
/*  TYPOGRAPHY SYSTEM
/* =================================== */

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-dark);
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-base);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 13px;
}

p {
  margin-bottom: var(--spacing-base);
  line-height: 1.65;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Text utility classes */
.text-xs { font-size: 12px; }
.text-sm { font-size: 13px; }
.text-base { font-size: 14px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 18px; }
.text-2xl { font-size: 20px; }
.text-3xl { font-size: 24px; }

.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-strong { color: var(--color-text-strong); }
.text-dark { color: var(--color-text-dark); }

.font-400 { font-weight: 400; }
.font-500 { font-weight: 500; }
.font-600 { font-weight: 600; }
.font-700 { font-weight: 700; }

/* =================================== */
/*  BUTTON SYSTEM (UNIFIED)
/* =================================== */

.btn, button, [role="button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
  min-height: 40px;
}

/* Button Sizes */
.btn-sm, .btn.small {
  padding: 8px 12px;
  font-size: 13px;
  min-height: 32px;
}

.btn-lg, .btn.large {
  padding: 16px 20px;
  font-size: 15px;
  min-height: 48px;
}

/* Full Width Button */
.btn-block, .btn.block {
  width: 100%;
}

/* PRIMARY BUTTON */
.btn-primary, .btn.primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled),
.btn.primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled),
.btn.primary:active:not(:disabled) {
  background-color: #1950D0;
  transform: translateY(0);
}

.btn-primary:focus,
.btn.primary:focus {
  outline: 2px solid var(--color-primary-lighter);
  outline-offset: 2px;
}

/* SECONDARY BUTTON */
.btn-secondary, .btn.secondary {
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled),
.btn.secondary:hover:not(:disabled) {
  background-color: white;
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* SUCCESS BUTTON */
.btn-success, .btn.success {
  background-color: var(--color-success);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-success:hover:not(:disabled),
.btn.success:hover:not(:disabled) {
  background-color: var(--color-success-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* DANGER BUTTON */
.btn-danger, .btn-error, .btn.danger {
  background-color: var(--color-error);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-danger:hover:not(:disabled),
.btn-error:hover:not(:disabled),
.btn.danger:hover:not(:disabled) {
  background-color: var(--color-error-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* WARNING BUTTON */
.btn-warning, .btn.warning {
  background-color: var(--color-warning);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-warning:hover:not(:disabled),
.btn.warning:hover:not(:disabled) {
  background-color: var(--color-warning-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* DISABLED STATE */
button:disabled,
.btn:disabled,
[role="button"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* BUTTON WITH ICON */
.btn-icon {
  gap: 8px;
}

.btn-icon i, .btn-icon svg {
  font-size: 1.1em;
  flex-shrink: 0;
}

/* =================================== */
/*  FORM ELEMENTS (UNIFIED)
/* =================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

label, .form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.4;
}

.form-control, .form-select, input, select, textarea {
  display: block;
  width: 100%;
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  background-color: var(--color-bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-body);
  transition: all var(--transition-base);
  outline: none;
  min-height: 44px;
}

.form-control::placeholder {
  color: var(--color-text-light);
}

.form-control:focus,
.form-select:focus,
input:focus,
select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
  background-color: var(--color-bg-card);
}

.form-control:disabled,
.form-select:disabled,
input:disabled,
select:disabled {
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Form Select */
.form-select, select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23475569' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
  cursor: pointer;
}

/* Textarea */
textarea {
  min-height: 100px;
  resize: vertical;
  font-size: 14px;
}

/* Input Group */
.input-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: stretch;
}

.input-group .form-control {
  flex: 1;
  min-height: 44px;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  background-color: var(--color-bg-light);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-dark);
  white-space: nowrap;
}

.input-group .btn {
  min-height: 44px;
  flex-shrink: 0;
}

/* Form Validation */
.form-control.is-valid,
input.is-valid {
  border-color: var(--color-success);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2310B981' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 1rem;
  padding-right: 2.5rem;
}

.form-control.is-invalid,
input.is-invalid {
  border-color: var(--color-error);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%23EF4444' stroke-width='2'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linecap='round' d='M6 3v3M6 9v.01'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 1rem;
  padding-right: 2.5rem;
}

.valid-feedback, .invalid-feedback {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: 13px;
  font-weight: 500;
}

.valid-feedback {
  color: var(--color-success);
}

.invalid-feedback {
  color: var(--color-error);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  gap: var(--spacing-base);
  align-items: center;
  margin-bottom: var(--spacing-base);
}

.form-check-input {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-card);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin: 0;
}

.form-check-input:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-lighter);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='white' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
  background-size: 100%;
  background-repeat: no-repeat;
  background-position: center;
}

.form-check-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
  outline: none;
}

.form-check-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-check-label {
  cursor: pointer;
  margin-bottom: 0;
  font-size: 14px;
  color: var(--color-text-body);
}

/* =================================== */
/*  CARDS & CONTAINERS
/* =================================== */

.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-light);
  font-weight: 600;
  color: var(--color-text-dark);
}

.card-body {
  padding: var(--spacing-xl);
}

.card-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-light);
}

.panel {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

/* =================================== */
/*  ALERTS & NOTIFICATIONS
/* =================================== */

.alert {
  padding: var(--spacing-base) var(--spacing-lg);
  border-left: 4px solid;
  border-radius: var(--radius-md);
  display: flex;
  gap: var(--spacing-base);
  align-items: flex-start;
  margin-bottom: var(--spacing-base);
  font-size: 14px;
  line-height: 1.5;
}

.alert-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-content {
  flex: 1;
}

.alert-content h5 {
  margin-bottom: 4px;
  margin-top: 0;
}

/* Alert Variants */
.alert-success {
  background-color: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success-dark);
}

.alert-error, .alert-danger {
  background-color: var(--color-error-light);
  border-color: var(--color-error);
  color: var(--color-error-dark);
}

.alert-warning {
  background-color: var(--color-warning-light);
  border-color: var(--color-warning);
  color: var(--color-warning-dark);
}

.alert-info {
  background-color: var(--color-info-light);
  border-color: var(--color-info);
  color: var(--color-text-dark);
}

/* =================================== */
/*  BADGES & PILLS
/* =================================== */

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  white-space: nowrap;
}

.badge-primary {
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--color-primary-dark);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success-dark);
}

.badge-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error-dark);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning-dark);
}

/* =================================== */
/*  TABLES
/* =================================== */

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-bg-card);
  color: var(--color-text-body);
  font-size: 14px;
}

.table th {
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
  padding: var(--spacing-base) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.table td {
  padding: var(--spacing-base) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.table tr:hover {
  background-color: var(--color-bg-light);
}

.table tr:last-child td {
  border-bottom: none;
}

/* =================================== */
/*  SPACING UTILITIES
/* =================================== */

.m-0 { margin: 0; }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-base { margin: var(--spacing-base); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-base { margin-top: var(--spacing-base); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-base { margin-bottom: var(--spacing-base); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-base { padding: var(--spacing-base); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-base { gap: var(--spacing-base); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* =================================== */
/*  LAYOUT UTILITIES
/* =================================== */

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }
.justify-content-start { justify-content: flex-start; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* =================================== */
/*  UTILITY CLASSES
/* =================================== */

.rounded { border-radius: var(--radius-md); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

.overflow-hidden { overflow: hidden; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

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

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .form-control,
  .form-select,
  .btn,
  input,
  select {
    min-height: 44px;
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .card,
  .panel {
    padding: var(--spacing-lg);
  }

  .card-body,
  .card-header,
  .card-footer {
    padding: var(--spacing-lg);
  }

  .table th,
  .table td {
    padding: var(--spacing-md);
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.25rem; }

  .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }

  .form-control {
    margin-bottom: var(--spacing-base);
  }
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =================================== */
/*  PRINT STYLES
/* =================================== */

@media print {
  body {
    background: white;
  }

  .btn, button {
    border: 1px solid #999;
  }

  a {
    text-decoration: underline;
  }
}