/* ==========================================================================
   Harmonia Precision Mental Health - Global Design System (Refined)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
  /* Brand Color Tokens */
  --color-primary-navy: #0A1F44;      /* Deep navy for structure & primary headings */
  --color-clinical-blue: #185FA5;     /* Primary CTA fill & active interactive links */
  --color-secondary-blue: #5B9BD5;    /* Eyebrows, subtle icons & small labels */
  --color-white: #FFFFFF;             /* Main surface background */
  --color-cool-bg: #F5F8FC;           /* Alternate editorial section background */
  --color-pale-blue-surface: #E6F1FB; /* Subtle badges & highlight surfaces */
  --color-body-text: #3A4B68;         /* Primary readable body text (darkened slightly for readability) */
  --color-secondary-text: #6B7F9C;     /* Subtitles, secondary captions & metadata */
  --color-border: #DCE6F2;           /* Hairline dividers */
  --color-dark-footer: #061530;       /* Dark navy footer background */
  --color-utility-bg: #0A1F44;        /* Utility top bar background */
  --color-utility-text: #B5D4F4;      /* Utility top bar text */
  --color-cta-hover: #144E89;         /* Primary button hover fill */

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Type Scale (Enhanced readability: ~10% scale bump) */
  --font-size-display: clamp(2.35rem, 4.0vw, 3.4rem);
  --font-size-h1: clamp(2.0rem, 3.2vw, 2.7rem);
  --font-size-h2: clamp(1.65rem, 2.4vw, 2.15rem);
  --font-size-h3: clamp(1.25rem, 1.6vw, 1.45rem);
  --font-size-body: 1.0875rem;       /* ~17.4px for comfortable reading */
  --font-size-body-sm: 0.9375rem;     /* ~15px for secondary text */
  --font-size-eyebrow: 0.78125rem;    /* 12.5px uppercase */
  --font-size-nav: 0.875rem;          /* 14px navigation link */

  /* Spacing Tokens */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 44px;
  --space-xl: 72px;
  --space-xxl: 104px;

  /* Component Tokens */
  --site-max-width: 1260px;
  --radius-sm: 4px;                  /* Clinical sharp corners for CTAs & inputs */
  --radius-md: 6px;                  /* Card/panel corners */
  --radius-lg: 8px;                  /* Major section containers */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  background-color: var(--color-white);
  color: var(--color-body-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: 880px;
}

.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.section-cool {
  background-color: var(--color-cool-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

/* Typography Hierarchy */
h1, h2, h3, h4 {
  color: var(--color-primary-navy);
  font-weight: 400; /* Clean regular weight per spec */
  line-height: 1.28;
  letter-spacing: -0.018em;
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4 {
  color: var(--color-white);
}

.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--font-size-eyebrow);
  font-weight: 500;
  color: var(--color-secondary-blue);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: var(--font-size-h2);
  margin-bottom: var(--space-sm);
}

.section-lead {
  font-size: 1.15rem;
  color: var(--color-secondary-text);
  max-width: 68ch;
  line-height: 1.65;
}

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

.text-center .section-lead {
  margin-left: auto;
  margin-right: auto;
}

/* Editorial Dividers & Hairlines */
.hairline-divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-xl) 0;
}

/* Buttons (Sharp 4px clinical corners) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--font-size-nav);
  font-weight: 400;
  letter-spacing: 0.025em;
  text-decoration: none;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  box-shadow: none;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  color: var(--color-white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary-navy);
  border-color: var(--color-border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-cool-bg);
  border-color: var(--color-clinical-blue);
  color: var(--color-clinical-blue);
}

/* Links */
a {
  color: var(--color-clinical-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-cta-hover);
}

/* Accessibility Focus Ring */
:focus-visible {
  outline: 2px solid var(--color-clinical-blue);
  outline-offset: 3px;
}


/* ==========================================================================
   Mobile Responsive Guard & Viewport Protection (Scoped <= 767px)
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

img,
video {
  max-width: 100%;
  height: auto;
}

svg {
  max-width: 100%;
}

@media (max-width: 767px) {
  .container,
  .site-main,
  #main-content,
  .section,
  .editorial-container,
  .final-cta-container {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    padding-left: 20px !important;
    padding-right: 20px !important;
    box-sizing: border-box !important;
  }
}