/* ==========================================
   MARBLE PSYCHOLOGICAL SERVICES
   Design System & Core Styles
   ========================================== */

/* CSS Variables */
:root {
  /* Colors - Brand Identity */
  --color-primary: #233067;
  --color-primary-dark: #1a2450;
  --color-primary-light: #4A5F8C;
  --color-secondary: #0A1123;
  --color-accent: #2D4A8C;

  --color-text: #0A1123;
  --color-text-light: #4A5568;
  --color-text-lighter: #718096;

  --color-bg: #FFFFFF;
  --color-bg-tint: #E8EBF2;
  --color-bg-accent: #F0F2F8;
  --color-border: #E2E8F0;

  --color-success: #48BB78;
  --color-error: #F56565;
  --color-warning: #ED8936;

  /* Typography Scale */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-headings: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --font-size-h1-desktop: 48px;
  --font-size-h1-mobile: 36px;
  --font-size-h2-desktop: 36px;
  --font-size-h2-mobile: 28px;
  --font-size-h3-desktop: 24px;
  --font-size-h3-mobile: 20px;
  --font-size-body: 18px;
  --font-size-body-mobile: 16px;
  --font-size-small: 14px;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing System */
  --space-xs: 8px;
  --space-s: 16px;
  --space-m: 24px;
  --space-l: 32px;
  --space-xl: 48px;
  --space-xxl: 64px;

  /* Layout */
  --container-max-width: 1280px;
  --container-padding: 24px;
  --border-radius: 4px;
  --border-radius-large: 8px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body-mobile);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 768px) {
  body {
    font-size: var(--font-size-body);
  }
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-headings);
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-m);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-h1-mobile);
  margin-bottom: var(--space-m);
}

h2 {
  font-size: var(--font-size-h2-mobile);
  margin-bottom: var(--space-s);
}

h3 {
  font-size: var(--font-size-h3-mobile);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-s);
}

@media (min-width: 768px) {
  h1 {
    font-size: var(--font-size-h1-desktop);
  }

  h2 {
    font-size: var(--font-size-h2-desktop);
  }

  h3 {
    font-size: var(--font-size-h3-desktop);
  }
}

p {
  margin-bottom: var(--space-s);
  line-height: var(--line-height-relaxed);
}

.subhead {
  font-size: 20px;
  line-height: var(--line-height-normal);
  color: var(--color-text-light);
  font-weight: var(--font-weight-regular);
  margin-bottom: var(--space-m);
}

@media (min-width: 768px) {
  .subhead {
    font-size: 24px;
  }
}

.text-small {
  font-size: var(--font-size-small);
}

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

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

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

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

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

/* ==========================================
   LAYOUT & CONTAINERS
   ========================================== */

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

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

@media (min-width: 768px) {
  .section-large {
    padding: var(--space-xxl) 0;
  }
}

/* Skip to main content link for accessibility */
.skip-to-main {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-xs) var(--space-s);
  text-decoration: none;
  z-index: 9999;
}

.skip-to-main:focus {
  top: 0;
}

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

.btn {
  display: inline-block;
  padding: 16px 32px;
  font-size: var(--font-size-body-mobile);
  font-weight: var(--font-weight-medium);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
  line-height: 1;
  min-height: 44px; /* Touch-friendly */
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 14px 30px; /* Adjust for border */
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-small {
  padding: 10px 20px;
  font-size: var(--font-size-small);
  min-height: 40px;
}

.btn-large {
  padding: 20px 40px;
  font-size: 18px;
  min-height: 56px;
}

/* Hover effect for call-out banner buttons */
.btn-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Specific styling for white button on colored background */
a.btn-large[style*="background: white"]:hover {
  background: #f8fafc !important;
  transform: translateY(-2px);
}

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

/* Button group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  margin-top: var(--space-m);
  justify-content: center;
}

@media (max-width: 767px) {
  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }
}

/* ==========================================
   CARDS
   ========================================== */

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-large);
  padding: var(--space-m);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ==========================================
   GRID SYSTEMS
   ========================================== */

.grid {
  display: grid;
  gap: var(--space-m);
}

.grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

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

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-body-mobile);
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  min-height: 44px; /* Touch-friendly */
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.1);
}

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

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%232D2D2D' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-small);
  margin-top: var(--space-xs);
}

.form-helper {
  color: var(--color-text-light);
  font-size: var(--font-size-small);
  margin-top: var(--space-xs);
}

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

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

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

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-s { margin-bottom: var(--space-s); }
.mb-m { margin-bottom: var(--space-m); }
.mb-l { margin-bottom: var(--space-l); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--space-xs); }
.mt-s { margin-top: var(--space-s); }
.mt-m { margin-top: var(--space-m); }
.mt-l { margin-top: var(--space-l); }
.mt-xl { margin-top: var(--space-xl); }

.bg-tint {
  background-color: var(--color-bg-tint);
}

.bg-accent {
  background-color: var(--color-bg-accent);
}

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

.mobile-only {
  display: block;
}

.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }

  .desktop-only {
    display: block;
  }
}

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

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

/* Focus visible styles for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Ensure sufficient color contrast */
::selection {
  background-color: var(--color-primary);
  color: white;
}

/* ==========================================
   LOADING & ANIMATION
   ========================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal);
}

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

@media print {
  .no-print {
    display: none !important;
  }
}