/* ══════════════════════════════════════════════════════════════════
   BOOST4BIZ — RESPONSIVE MEDIA QUERIES
   Ottimizzazione per Tablet (768px), Mobile (480px), Small (320px)
══════════════════════════════════════════════════════════════════ */

/* ── TABLET: 768px → 1024px ─────────────────────────────────── */
@media (max-width: 1024px) {
  :root {
    --pad-x: 20px;
    --s6: 48px;
    --s7: 72px;
  }

  .container {
    padding: 0 var(--pad-x);
  }

  .section {
    padding: var(--s6) 0;
  }

  .section-lg {
    padding: var(--s7) 0;
  }

  h1 {
    font-size: clamp(24px, 3vw, 36px);
  }

  h2 {
    font-size: clamp(20px, 2.5vw, 30px);
  }

  h3 {
    font-size: clamp(16px, 2vw, 22px);
  }

  .grid.cols-4 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid.cols-5 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid.cols-6-4,
  .grid.cols-7-5 {
    grid-template-columns: 1fr;
    gap: var(--s4);
  }

  .cols-5-7 {
    grid-template-columns: 1fr;
  }

  .btn-lg {
    padding: 15px 32px;
    font-size: var(--text-base);
  }

  .cta-banner .title {
    font-size: clamp(20px, 2.5vw, 30px);
  }

  .cta-banner .sub {
    font-size: var(--text-base);
  }

  .value-bar p {
    font-size: clamp(16px, 2vw, 20px);
  }
}

/* ── MOBILE: 480px → 768px ─────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --pad-x: 16px;
    --s4: 24px;
    --s5: 32px;
    --s6: 40px;
    --s7: 56px;
    --hdr-h: 72px;
    --topbar-h: 40px;
  }

  html {
    font-size: 15px;
  }

  body {
    font-size: 15px;
  }

  .container {
    padding: 0 var(--pad-x);
  }

  .section {
    padding: var(--s5) 0;
  }

  .section-sm {
    padding: var(--s4) 0;
  }

  .section-lg {
    padding: var(--s6) 0;
  }

  /* Headings */
  h1 {
    font-size: clamp(20px, 5vw, 32px);
    letter-spacing: -0.02em;
  }

  h2 {
    font-size: clamp(18px, 4vw, 26px);
  }

  h3 {
    font-size: clamp(16px, 3vw, 20px);
  }

  h4 {
    font-size: 16px;
  }

  p {
    font-size: 15px;
    line-height: 1.6;
  }

  /* Grid layouts */
  .grid {
    gap: var(--s3);
  }

  .cols-2,
  .cols-3,
  .cols-4,
  .cols-5 {
    grid-template-columns: 1fr;
  }

  .cols-6-4,
  .cols-7-5,
  .cols-5-7 {
    grid-template-columns: 1fr;
  }

  /* Flex */
  .flex {
    flex-wrap: wrap;
  }

  .flex-between {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s2);
  }

  /* Buttons */
  .btn {
    padding: 12px 24px;
    font-size: var(--text-sm);
    width: 100%;
    justify-content: center;
  }

  .btn-sm {
    padding: 10px 20px;
    width: auto;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: var(--text-base);
  }

  /* Hero */
  .page-hero {
    padding: var(--s5) 0;
    text-align: center;
  }

  .page-hero h1 {
    margin-bottom: 12px;
  }

  .page-hero .hero-sub {
    font-size: var(--text-base);
    line-height: 1.6;
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--s2);
    padding-top: var(--s2);
    border-top: 1px solid var(--petrol-light);
  }

  .hero__stat {
    min-width: auto;
    text-align: left;
  }

  /* Cards */
  .card {
    padding: var(--s3);
  }

  .card:hover {
    transform: translateY(-2px);
  }

  .card-title {
    font-size: var(--text-base);
  }

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

  .news-card {
    display: flex;
    flex-direction: column;
  }

  .news-card__img {
    aspect-ratio: 16 / 9;
  }

  .news-card__body {
    padding: var(--s3);
  }

  /* CTA Banner */
  .cta-banner {
    padding: var(--s5) 0;
  }

  .cta-banner .title {
    font-size: clamp(18px, 4vw, 24px);
    margin-bottom: 12px;
  }

  .cta-banner .sub {
    font-size: var(--text-base);
    margin-bottom: 24px;
  }

  .cta-banner .btn {
    width: 100%;
  }

  /* Value Bar */
  .value-bar {
    padding: var(--s4) var(--pad-x);
  }

  .value-bar p {
    font-size: clamp(14px, 3vw, 18px);
  }

  /* Section Header */
  .section-hdr {
    margin-bottom: var(--s4);
  }

  .section-hdr.center p {
    margin-left: 0;
    margin-right: 0;
  }

  /* Steps */
  .step {
    padding-bottom: var(--s4);
    gap: var(--s2);
  }

  .step__num {
    width: 44px;
    height: 44px;
    font-size: var(--text-base);
  }

  /* Problem List */
  .problem__item {
    font-size: var(--text-sm);
    padding: 10px 14px;
    gap: 10px;
  }

  .problem__close {
    padding: 14px var(--s2);
  }

  /* Accordion */
  .acc-trigger {
    padding: 16px var(--s2);
    font-size: var(--text-base);
    gap: 12px;
  }

  .acc-icon {
    width: 24px;
    height: 24px;
    font-size: 16px;
  }

  .acc-content {
    padding: 0 var(--s2) var(--s2);
    font-size: var(--text-sm);
  }

  /* Form */
  .form-ctrl {
    height: 44px;
    padding: 0 14px;
    font-size: 16px; /* Prevent zoom on iOS */
  }

  textarea.form-ctrl {
    min-height: 100px;
    padding: 12px 14px;
  }

  /* Section Label */
  .section-label {
    font-size: 11px;
    letter-spacing: 1px;
  }
}

/* ── SMALL MOBILE: 320px → 480px ──────────────────────────── */
@media (max-width: 480px) {
  :root {
    --pad-x: 12px;
    --s2: 12px;
    --s3: 16px;
    --s4: 20px;
    --s5: 24px;
    --text-lg: 16px;
  }

  html {
    font-size: 14px;
  }

  body {
    font-size: 14px;
    line-height: 1.5;
  }

  h1 {
    font-size: clamp(18px, 5vw, 26px);
  }

  h2 {
    font-size: clamp(16px, 4vw, 22px);
  }

  h3 {
    font-size: clamp(14px, 3vw, 18px);
  }

  h4 {
    font-size: 14px;
  }

  p {
    font-size: 14px;
    line-height: 1.5;
  }

  .container {
    padding: 0 var(--pad-x);
  }

  .section {
    padding: var(--s4) 0;
  }

  .grid {
    gap: var(--s2);
  }

  .btn {
    padding: 10px 18px;
    font-size: 13px;
    width: 100%;
  }

  .btn-sm {
    padding: 9px 16px;
    font-size: 12px;
  }

  .btn-lg {
    padding: 12px 22px;
  }

  .badge {
    padding: 3px 10px;
    font-size: 10px;
  }

  .card {
    padding: var(--s2);
  }

  .card-icon {
    width: 40px;
    height: 40px;
  }

  .card-title {
    font-size: 14px;
    margin-bottom: 8px;
  }

  .card-text {
    font-size: 13px;
  }

  .page-hero {
    padding: var(--s4) 0;
  }

  .page-hero h1 {
    margin-bottom: 8px;
  }

  .page-hero .hero-sub {
    font-size: 13px;
  }

  .cta-banner {
    padding: var(--s4) 0;
  }

  .cta-banner .title {
    font-size: clamp(16px, 4vw, 20px);
    margin-bottom: 10px;
  }

  .cta-banner .sub {
    font-size: 13px;
    margin-bottom: 18px;
  }

  .cta-banner .micro {
    font-size: 10px;
  }

  .value-bar {
    padding: var(--s3) var(--pad-x);
    border-top-width: 2px;
    border-bottom-width: 2px;
  }

  .value-bar p {
    font-size: 13px;
    line-height: 1.5;
  }

  .section-hdr {
    margin-bottom: var(--s3);
  }

  .section-label {
    font-size: 10px;
    letter-spacing: 0.8px;
    margin-bottom: 8px;
  }

  .section-title {
    margin-bottom: 10px;
  }

  .section-sub {
    font-size: 14px;
  }

  .step {
    padding-bottom: var(--s3);
    gap: var(--s2);
  }

  .step__num {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }

  .step:not(:last-child)::before {
    left: 20px;
    top: 48px;
  }

  .step__title {
    font-size: 14px;
    margin-bottom: 4px;
  }

  .step__text {
    font-size: 12px;
  }

  .hero__stat-num {
    font-size: 16px;
  }

  .hero__stat-lbl {
    font-size: 9px;
  }

  .acc-trigger {
    padding: 14px var(--s2);
    font-size: 14px;
    gap: 10px;
  }

  .acc-icon {
    width: 22px;
    height: 22px;
    font-size: 14px;
  }

  .acc-content {
    padding: 0 var(--s2) var(--s2);
    font-size: 13px;
  }

  .form-label {
    font-size: 10px;
    margin-bottom: 4px;
  }

  .form-ctrl {
    height: 40px;
    padding: 0 12px;
  }

  textarea.form-ctrl {
    min-height: 90px;
    padding: 10px 12px;
  }

  .problem__item {
    padding: 8px 12px;
    font-size: 13px;
    gap: 8px;
  }

  .problem__close {
    padding: 12px var(--s2);
  }

  .problem__close strong {
    font-size: 13px;
  }

  .problem__close p {
    font-size: 12px;
  }

  /* Nascondere elementi su mobile se necessario */
  .hide-mobile {
    display: none !important;
  }
}

/* ── LANDSCAPE MOBILE: altezza limitata ─────────────────────── */
@media (max-height: 600px) and (orientation: landscape) {
  .page-hero {
    padding: var(--s3) 0;
  }

  .page-hero h1 {
    margin-bottom: 8px;
  }

  .cta-banner {
    padding: var(--s3) 0;
  }

  .btn {
    padding: 10px 20px;
  }
}

/* ── SCHERMI EXTRA LARGHI: > 1440px ────────────────────────── */
@media (min-width: 1441px) {
  :root {
    --pad-x: 32px;
  }

  .container {
    max-width: 1320px;
  }

  h1 {
    font-size: clamp(32px, 4vw, 48px);
  }

  h2 {
    font-size: clamp(28px, 3vw, 40px);
  }

  .section {
    padding: var(--s8) 0;
  }
}

/* ── FOCUS VISIBLE — Accessibilità ────────────────────────── */
:focus-visible {
  outline: 2px solid var(--petrol);
  outline-offset: 3px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px dashed var(--petrol);
  outline-offset: 2px;
}

/* ── PRINT STYLES ──────────────────────────────────────────── */
@media print {
  .hide-print {
    display: none !important;
  }

  a[href]::after {
    content: none;
  }

  .btn {
    border: 1px solid #000;
    color: #000;
    background: #fff;
  }

  .cta-banner {
    background: #fff;
    color: #000;
    border: 1px solid #000;
  }
}

/* ── PREFERS REDUCED MOTION ───────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── DARK MODE PREFERENCE (future) ────────────────────────── */
@media (prefers-color-scheme: dark) {
  /* Placeholder for future dark mode implementation */
}