/*
Theme Name: B4b Executive Theme
Theme URI: https://boost4biz.it
Author: Sergio De Carolis
Author URI: https://boost4biz.it
Description: Professional single-page theme for Executive Operations Partner. Single-page design with multiple scroll sections.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Private
Text Domain: b4b-theme
Tags: one-page, professional, business, portfolio
*/

/* =============================================
   FINSTYLE — Sistema di Stile Sintetico
   Derivato dall'analisi di FinecoBank e Segugio.it
   Applicato completamente al tema B4B Blog
============================================= */

/* =============================================
   VARIABILI CSS ROOT — Sistema Completo
============================================= */
:root {
  /* =============================================
     COLORI PRIMARI — Boost4biz Design System
  ============================================= */
  --color-primary:          #064F47;
  --color-primary-dark:     #043A34;
  --color-primary-light:    #4D8C7E;
  --color-primary-soft:     #E8F2F0;

  --color-accent:           #D46800;
  --color-accent-dark:      #A85200;
  --color-accent-soft:      #FFF0E0;

  --color-navy:             #1D3D6B;
  --color-navy-dark:        #0F2647;

  /* =============================================
     SUPERFICI
  ============================================= */
  --color-bg-page:          #FFFFFF;
  --color-bg-section:       #F5F7FA;
  --color-bg-dark:          #0F2647;
  --color-bg-footer:        #1D3D6B;
  --color-bg-copyright:     #0F2647;
  --color-surface:          #FFFFFF;
  --color-surface-2:        #FAFBFC;

  /* =============================================
     TESTI
  ============================================= */
  --color-text-headline:    #064F47;
  --color-text-dark:        #1C1C1E;
  --color-text-body:        #333333;
  --color-text-muted:       #4B5563;
  --color-text-light:       #B7C0CC;
  --color-text-legal:       #99A3B3;
  --color-border:           #E2E8EF;
  --color-border-dark:      #D4D9E0;

  /* Stato */
  --color-success:          #064F47;
  --color-error:            #E02020;
  --color-warning:          #D46800;
  --color-info:             #1D3D6B;

  /* =============================================
     EFFETTI
  ============================================= */
  --shadow-xs:              0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm:              0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:              0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg:              0 12px 32px rgba(0,0,0,0.10);
  --shadow-card:            0 2px 12px rgba(0,0,0,0.07);
  --shadow-card-hover:      0 8px 28px rgba(0,0,0,0.12);
  --shadow-header:          0 1px 0 rgba(15,23,33,0.07);
  --shadow-form:            0 12px 40px rgba(15,23,33,0.12);
  --shadow-btn-primary:     0 2px 8px rgba(6,79,71,0.25);
  --shadow-btn-accent:      0 2px 8px rgba(212,104,0,0.25);

  --radius-xs:              4px;
  --radius-sm:              10px;
  --radius-md:              12px;
  --radius-lg:              20px;
  --radius-xl:              24px;
  --radius-pill:            9999px;

  --transition-fast:        150ms ease;
  --transition-base:        0.2s ease;
  --transition-slow:        0.35s ease;

  /* =============================================
     TIPOGRAFIA
  ============================================= */
  --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body:    'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* =============================================
   RESET E BASE
============================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text-body);
  background-color: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
}

/* =============================================
   TIPOGRAFIA
============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-dark);
  margin: 0 0 1rem 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-text-headline);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
}

p {
  margin: 0 0 1rem 0;
  max-width: 70ch;
}

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

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

/* =============================================
   UTILITIES
============================================= */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

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

.section {
  padding: clamp(48px, 7vw, 80px) 0;
}

.section-header {
  margin-bottom: 40px;
}

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

.section-header--center p {
  margin-inline: auto;
}

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

/* =============================================
   GRIGLIE
============================================= */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  align-items: center;
}

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .grid-3 { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   DESIGN REFRESH 2026 — Tipografia (override style.css)
═══════════════════════════════════════════════════════════ */

h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
}

h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--navy);
}

h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
}

p, li {
  font-size: 0.97rem;
  line-height: 1.72;
  color: var(--text-muted);
}

/* Preserve white/inherited text in dark contexts */
.site-footer p,
.site-footer li,
.mobile-menu p,
.mobile-menu li {
  color: inherit;
}

.site-footer h2,
.site-footer h3 {
  color: inherit;
}