/* ==========================================================================
   Kennedy Mortgage - Base Styles
   ==========================================================================
   Global styles that apply site-wide. Built on the design tokens defined
   in tokens.css. Load this AFTER tokens.css in the cascade.
   ========================================================================== */


/* ==========================================================================
   RESET & NORMALIZATION
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  line-height: var(--leading-loose);
  color: var(--color-gray-600);
  background-color: var(--color-white);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}


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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-md);
}

h2 {
  font-size: var(--text-h2);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-normal);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
  letter-spacing: 0;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  max-width: 70ch; /* Optimal reading width for body copy */
}

p:last-child {
  margin-bottom: 0;
}

/* Lead paragraph (used in hero subheads, intro paragraphs) */
.lead {
  font-size: var(--text-body-lg);
  line-height: var(--leading-loose);
  color: var(--color-gray-700);
}

/* Eyebrow label (small uppercase tag above headings) */
.eyebrow {
  display: block;
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: var(--space-sm);
}


/* ==========================================================================
   LINKS
   ========================================================================== */

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

a:hover {
  color: var(--color-blue-400);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
  border-radius: 2px;
}


/* ==========================================================================
   LISTS
   ========================================================================== */

ul, ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-xs);
}

li::marker {
  color: var(--color-blue);
}

.list-unstyled {
  list-style: none;
  padding: 0;
}


/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  min-height: 44px;  /* Accessibility: minimum touch target */
}

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

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary button (main CTA) */
.btn-primary {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-blue-400);
  text-decoration: none;
  color: var(--color-white);
}

.btn-primary:active {
  background-color: var(--color-navy);
}

/* Secondary button (outline style) */
.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
  text-decoration: none;
}

/* Tertiary / text link button */
.btn-tertiary {
  background-color: transparent;
  color: var(--color-blue);
  padding: 12px 0;
  border-color: transparent;
}

.btn-tertiary:hover {
  text-decoration: underline;
  background-color: transparent;
}

/* Size variants */
.btn-lg {
  padding: 16px 32px;
  font-size: var(--text-body-lg);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--text-body-sm);
  min-height: 36px;
}


/* ==========================================================================
   FORMS
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.5;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-blue);
  border-width: 2px;
  padding: 11px 15px;  /* compensates for the extra border pixel */
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  background-color: var(--color-gray-100);
  color: var(--color-gray-400);
  cursor: not-allowed;
}

.form-input.is-error,
.form-textarea.is-error,
.form-select.is-error {
  border-color: var(--color-error);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select with custom dropdown indicator */
.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%2318242E' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px 8px;
  padding-right: 44px;
}

.form-help {
  margin-top: var(--space-xs);
  font-size: 13px;
  color: var(--color-gray-400);
}

.form-error {
  margin-top: var(--space-xs);
  font-size: 13px;
  font-weight: var(--weight-medium);
  color: var(--color-error);
}

/* Radio button and checkbox styles */
.form-radio-group,
.form-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-radio,
.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: var(--text-body);
  color: var(--color-gray-700);
}

.form-radio input[type="radio"],
.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--color-blue);
  flex-shrink: 0;
}


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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-body-sm);
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--color-gray-200);
  vertical-align: top;
}

.table th {
  background-color: var(--color-blue-100);
  color: var(--color-navy);
  font-weight: var(--weight-semibold);
}

.table tbody tr:hover {
  background-color: var(--color-blue-50);
}

/* Label/value variant: used for key terms tables across program pages */
.table.table-label-value tbody td:first-child {
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  width: 35%;
}

/* Mobile wrapper for horizontally scrolling wide tables */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}


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

/* Centered container with responsive side padding */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--side-padding-mobile);
  padding-right: var(--side-padding-mobile);
}

/* Narrow container for long-form content (About body, legal pages) */
.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--side-padding-mobile);
  padding-right: var(--side-padding-mobile);
}

@media (min-width: 640px) {
  .container, .container-narrow {
    padding-left: var(--side-padding-tablet);
    padding-right: var(--side-padding-tablet);
  }
}

@media (min-width: 1024px) {
  .container, .container-narrow {
    padding-left: var(--side-padding-desktop);
    padding-right: var(--side-padding-desktop);
  }
}

/* Vertical section padding rhythm */
.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.section-lg {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.section-sm {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

@media (max-width: 639px) {
  .section, .section-lg {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .section-sm {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
}

/* Section background variants */
.section-light  { background-color: var(--color-off-white); }
.section-gray   { background-color: var(--color-gray-100); }
.section-navy   {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* When inside a navy section, headings and links shift to light-on-dark */
.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4 {
  color: var(--color-white);
}

.section-navy a {
  color: var(--color-blue-100);
}

.section-navy a:hover {
  color: var(--color-white);
}


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

/* Screen reader-only content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip-to-content link (becomes visible when focused) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  z-index: var(--z-toast);
  text-decoration: none;
  font-weight: var(--weight-semibold);
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-blue);
}

/* Focus indication for keyboard users; hidden for mouse users */
:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}