/*
 * pSEO Blocks - Cardinal Metrics Theme
 * Surgical data calm meets racing-green momentum
 * Clean white canvas with decisive accent swatches
 * COMPLETE TONE SYSTEM - all required variables defined
 * 
 * Tone visual hierarchy (4 tones):
 *   base   → #F7F9FB  (overcast white - primary content)
 *   alt    → #FFFFFF  (pure white - visual breaks)
 *   dark   → #252A31  (onyx - hero, footer)
 *   accent → green-blue gradient (CTAs, highlights)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* ========================================
     CORE COLORS - Clean white canvas
     ======================================== */
  --color-bg: #F7F9FB;
  --color-surface: #FFFFFF;
  --color-text: #1A1A1A;
  --color-muted: #6B6D7F;
  --color-border: rgba(0, 0, 0, 0.08);
  
  /* Primary - Insight Blue (for buttons, links) */
  --color-primary: #3190F9;
  --color-primary-contrast: #FFFFFF;
  
  /* Accent - Success Green (for highlights) */
  --color-accent: #28C176;
  --color-accent-light: #3DD68E;
  --color-accent-dark: #1E9E5E;
  --color-accent-contrast: #FFFFFF;
  
  /* Additional status colors */
  --color-warning: #FFCB4A;
  --color-error: #F25656;
  --color-info: #10C0FF;
  
  /* ========================================
     TONE: BASE (overcast white - primary content)
     Background: #F7F9FB - subtle cool gray
     ======================================== */
  /* These are the defaults via --color-* vars above */
  
  /* ========================================
     TONE: ALT (pure white - visual breaks)
     Background: #FFFFFF - clean white
     Use for: feature sections, galleries, alternating content
     ======================================== */
  --color-alt-bg: #FFFFFF;
  --color-alt-text: #1A1A1A;
  --color-alt-muted: #6B6D7F;
  --color-alt-border: rgba(0, 0, 0, 0.06);
  --color-alt-card: #F7F9FB;
  --color-alt-link: #3190F9;
  
  /* ========================================
     TONE: DARK (onyx - immersive areas)
     Background: #252A31 - deep charcoal
     Use for: hero sections, footer, dramatic areas
     ======================================== */
  --color-dark-bg: #252A31;
  --color-dark-text: #FFFFFF;
  --color-dark-muted: rgba(255, 255, 255, 0.65);
  --color-dark-border: rgba(255, 255, 255, 0.1);
  --color-dark-card: #2E343D;
  --color-dark-link: #10C0FF;
  
  /* ========================================
     TONE: ACCENT (green-blue gradient - CTAs)
     Background: success green to insight blue
     Use for: footer CTA, post headers, conversion areas
     ======================================== */
  --color-accent-surface: linear-gradient(135deg, #28C176 0%, #3190F9 100%);
  --color-accent-text: #FFFFFF;
  --color-accent-muted: rgba(255, 255, 255, 0.85);
  --color-accent-border: rgba(255, 255, 255, 0.25);
  --color-accent-card: rgba(255, 255, 255, 0.15);
  --color-accent-eyebrow: rgba(255, 255, 255, 0.9);
  
  /* ========================================
     BACKGROUND & OVERLAY TOKENS
     ======================================== */
  --color-overlay: linear-gradient(180deg, rgba(37, 42, 49, 0.7) 0%, rgba(37, 42, 49, 0.95) 100%);
  --color-overlay-solid: rgba(37, 42, 49, 0.9);
  --color-gradient-start: #28C176;
  --color-gradient-end: #3190F9;
  --color-shadow: rgba(0, 0, 0, 0.08);
  
  /* ========================================
     TYPOGRAPHY
     ======================================== */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Heading styles - clean and data-centric */
  --heading-weight: 700;
  --heading-gradient: none;
  --heading-text-fill: currentColor;
  
  /* ========================================
     SPACING & LAYOUT
     ======================================== */
  --radius: 8px;
  --radius-input: 8px;
  --radius-tag: 20px;
  --radius-btn: 8px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.04), 0 16px 32px rgba(0, 0, 0, 0.08);
  --container-max: 1280px;
  --space-section-y: 5rem;
  --space-card: 1.5rem;
  --nav-height: 4rem;
  
  /* ========================================
     COMPONENT TOKENS - BUTTONS
     ======================================== */
  
  /* Primary button - blue pill */
  --btn-primary-bg: #3190F9;
  --btn-primary-text: #FFFFFF;
  --btn-primary-border: #3190F9;
  --btn-primary-hover-bg: #2077DA;
  --btn-primary-shadow: 0 4px 12px rgba(49, 144, 249, 0.25);
  
  /* Secondary button - blue outline */
  --btn-secondary-bg: transparent;
  --btn-secondary-text: #3190F9;
  --btn-secondary-border: #3190F9;
  --btn-secondary-hover-bg: rgba(49, 144, 249, 0.08);
  --btn-secondary-hover-border: #2077DA;
  --btn-secondary-hover-text: #2077DA;
  
  /* Dark tone buttons - cyan on dark */
  --dark-btn-primary-bg: #10C0FF;
  --dark-btn-primary-text: #252A31;
  --dark-btn-secondary-border: #10C0FF;
  --dark-btn-secondary-text: #10C0FF;
  
  /* Accent tone buttons - white on gradient */
  --accent-btn-primary-bg: #FFFFFF;
  --accent-btn-primary-text: #1E9E5E;
  --accent-btn-secondary-border: rgba(255, 255, 255, 0.6);
  --accent-btn-secondary-text: #FFFFFF;
  
  /* ========================================
     COMPONENT TOKENS - NAVIGATION
     ======================================== */
  --nav-bg: rgba(247, 249, 251, 0.9);
  --nav-border: rgba(0, 0, 0, 0.06);
  
  /* ========================================
     COMPONENT TOKENS - SEARCH & INPUTS
     ======================================== */
  --search-input-bg: #FFFFFF;
  --search-input-border: rgba(0, 0, 0, 0.08);
  --search-input-focus-border: #3190F9;
  --search-input-focus-shadow: 0 0 0 3px rgba(49, 144, 249, 0.12);
  --search-btn-bg: #3190F9;
  --search-btn-text: #FFFFFF;
  --search-btn-hover-bg: #2077DA;
  
  /* Popular links */
  --popular-link-bg: rgba(0, 0, 0, 0.04);
  --popular-link-hover-bg: rgba(49, 144, 249, 0.1);
  
  /* ========================================
     COMPONENT TOKENS - CARDS & IMAGES
     ======================================== */
  --card-gradient: none;
  --card-bg: #FFFFFF;
  --image-tag-bg: rgba(37, 42, 49, 0.8);
  --image-tag-text: #FFFFFF;
  --image-title-text: #FFFFFF;
  --image-overlay-gradient: linear-gradient(180deg, transparent 40%, rgba(37, 42, 49, 0.9) 100%);
  
  /* ========================================
     COMPONENT TOKENS - STATS & TRUST BAR
     ======================================== */
  --stat-font: var(--font-heading);
  --stat-gradient: linear-gradient(135deg, #28C176 0%, #3190F9 100%);
  --stat-text-fill: transparent;
  --dark-stat-text-fill: transparent;
  
  /* ========================================
     COMPONENT TOKENS - VIDEO
     ======================================== */
  --video-border-color: rgba(0, 0, 0, 0.08);
  --video-hover-border-color: #3190F9;
  --video-glow: 0 8px 24px rgba(49, 144, 249, 0.15);
  --video-hover-shadow: 0 12px 32px rgba(49, 144, 249, 0.2);
  
  /* ========================================
     COMPONENT TOKENS - TIMELINE
     ======================================== */
  --timeline-line-gradient: linear-gradient(180deg, #E5E7EB 0%, #3190F9 50%, #E5E7EB 100%);
  --timeline-number-bg: #3190F9;
  --timeline-number-text: #FFFFFF;
  
  /* ========================================
     COMPONENT TOKENS - CODE BLOCKS
     ======================================== */
  --color-code-bg: #252A31;
  --color-code-text: #10C0FF;
  --color-code-border: rgba(255, 255, 255, 0.1);
  
  /* ========================================
     COMPONENT TOKENS - CALLOUTS
     ======================================== */
  --callout-tip: #28C176;
  --callout-tip-bg: rgba(40, 193, 118, 0.1);
  --callout-warning: #FFCB4A;
  --callout-warning-bg: rgba(255, 203, 74, 0.12);
  --callout-note: #3190F9;
  --callout-note-bg: rgba(49, 144, 249, 0.1);
  
  /* ========================================
     COMPONENT TOKENS - TAGS
     ======================================== */
  --tag-font: var(--font-body);
  --tag-transform: uppercase;
  --tag-letter-spacing: 0.04em;
  
  /* ========================================
     THEME EXTRAS
     ======================================== */
  --scrollbar-track: #F7F9FB;
  --scrollbar-thumb: #D0D5DD;
  --scrollbar-thumb-hover: #3190F9;
  --selection-bg: rgba(49, 144, 249, 0.2);
  --selection-text: #1A1A1A;
  
  /* Hero button glow */
  --hero-btn-glow: 0 4px 16px rgba(49, 144, 249, 0.25);
}

/* ========================================
   TONE-SPECIFIC BUTTON OVERRIDES
   ======================================== */

/* Buttons on DARK tone - cyan on dark (only when NOT on gradient) */
.block[data-tone="dark"]:not([data-bg="gradient"]) .btn--primary {
  background: var(--dark-btn-primary-bg);
  color: var(--dark-btn-primary-text);
  border-color: var(--dark-btn-primary-bg);
}

.block[data-tone="dark"]:not([data-bg="gradient"]) .btn--primary:hover {
  background: #33D4FF;
  box-shadow: 0 4px 16px rgba(16, 192, 255, 0.3);
}

.block[data-tone="dark"]:not([data-bg="gradient"]) .btn--secondary {
  border-color: var(--dark-btn-secondary-border);
  color: var(--dark-btn-secondary-text);
}

.block[data-tone="dark"]:not([data-bg="gradient"]) .btn--secondary:hover {
  background: rgba(16, 192, 255, 0.1);
}

/* Buttons on ACCENT tone - white on gradient (only when NOT on data-bg="gradient") */
.block[data-tone="accent"]:not([data-bg="gradient"]) .btn--primary {
  background: var(--accent-btn-primary-bg);
  color: var(--accent-btn-primary-text);
  border-color: var(--accent-btn-primary-bg);
}

.block[data-tone="accent"]:not([data-bg="gradient"]) .btn--primary:hover {
  background: #F7F9FB;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.3);
}

.block[data-tone="accent"]:not([data-bg="gradient"]) .btn--secondary {
  border-color: var(--accent-btn-secondary-border);
  color: var(--accent-btn-secondary-text);
}

.block[data-tone="accent"]:not([data-bg="gradient"]) .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #FFFFFF;
}

/* ========================================
   CARD STYLING - CLEAN SHADOW EFFECT
   ======================================== */

.card {
  background: var(--card-bg);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

/* Cards on alt tone */
.block[data-tone="alt"] .card {
  background: #F7F9FB;
  border-color: rgba(0, 0, 0, 0.06);
}

/* Cards on dark tone */
.block[data-tone="dark"] .card {
  background: #2E343D;
  border-color: rgba(255, 255, 255, 0.1);
}

/* Cards on accent tone */
.block[data-tone="accent"] .card {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

/* ========================================
   GRADIENT BACKGROUND TEXT OVERRIDES
   When data-bg="gradient" is applied, text must be readable
   ======================================== */

.block[data-bg="gradient"] {
  --surface-text: #FFFFFF;
  --surface-muted: rgba(255, 255, 255, 0.85);
}

.block[data-bg="gradient"] .block__eyebrow {
  color: rgba(255, 255, 255, 0.9) !important;
}

.block[data-bg="gradient"] .hero__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.block[data-bg="gradient"] .search-section__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.block[data-bg="gradient"] .footer-cta__eyebrow {
  color: rgba(255, 255, 255, 0.9);
}

.block[data-bg="gradient"] .footer-cta__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

.block[data-bg="gradient"] .footer-cta__feature-desc {
  color: rgba(255, 255, 255, 0.8);
}

/* Buttons on gradient backgrounds - WHITE for contrast on teal-blue */
.block[data-bg="gradient"] .btn--primary {
  background: #FFFFFF !important;
  color: #1E9E5E !important;
  border-color: #FFFFFF !important;
}

.block[data-bg="gradient"] .btn--primary:hover {
  background: #F0F0F0 !important;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.3);
}

.block[data-bg="gradient"] .btn--secondary {
  background: transparent !important;
  border-color: rgba(255, 255, 255, 0.6) !important;
  color: #FFFFFF !important;
}

.block[data-bg="gradient"] .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.15) !important;
  border-color: #FFFFFF !important;
}

/* Links on gradient backgrounds */
.block[data-bg="gradient"] a:not(.btn) {
  color: #FFFFFF;
}

/* huge_image subtitle on gradient */
.block[data-bg="gradient"] .huge-image__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

/* ========================================
   ACCENT TONE TEXT OVERRIDES
   ======================================== */

.block[data-tone="accent"]:not([data-bg="gradient"]) .block__eyebrow {
  color: rgba(255, 255, 255, 0.9);
}

.block[data-tone="accent"]:not([data-bg="gradient"]) .footer-cta__eyebrow {
  color: rgba(255, 255, 255, 0.9);
}

.block[data-tone="accent"]:not([data-bg="gradient"]) .footer-cta__feature-desc {
  color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   DARK TONE TEXT OVERRIDES
   Cyan eyebrow on dark backgrounds (only when NOT on gradient)
   ======================================== */

.block[data-tone="dark"]:not([data-bg="gradient"]) .block__eyebrow {
  color: #10C0FF;
}

/* ========================================
   NAVIGATION STYLING
   ======================================== */

.block--navbar {
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
}

/* ========================================
   BUTTON STYLING - EXPLICIT OVERRIDES
   Ensure buttons always have correct colors
   ======================================== */

.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text) !important;
  border-color: var(--btn-primary-border);
}

.btn--primary:hover {
  background: var(--btn-primary-hover-bg);
}

.btn--secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border-color: var(--btn-secondary-border);
}

/* Breakout CTA buttons - ensure white text on blue */
.breakout-cta .btn--primary {
  background: #3190F9;
  color: #FFFFFF !important;
  border-color: #3190F9;
}

.breakout-cta .btn--primary:hover {
  background: #2077DA;
}

/* ========================================
   EYEBROW TEXT - BASE STYLING
   Green accent on light backgrounds
   ======================================== */

.block__eyebrow {
  color: #28C176;
}