:root {
  /* Colors */
  --color-background: rgb(227, 255, 255);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "Inter", "FKGroteskNeue", "Geist", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: calc(10px + 0.5vw);
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-calc: 25px;
  --font-size-4xl: calc(20px + 1vw);
  --font-size-result: 42px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --font-weight-result: 700;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-64: 64px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-xsm: 430px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;

  /*page colours*/
  --yellow: #e9f500; /*ccff00   1d3789    good w white :bdd600  -- e9f500  */
  --yellow-light: #ffe76d;
  --yellow-hover: #625a1053;
  --yellow-half-pastel: #eaff81;
  --yellow-pastel: #f1ffac;
  --yellow-more-pastel: #fcffee;
  --cyan-pastel: #befff12d;
  --cyan: #0f85fc;
  --cyan-light: #00c4b3;
  --cyan-hover: #2362706e;
  --blue-logo: #1d3789;
  --blue-logo-hover: #16296d; /* Versione 15% più scura del blue-logo */

  /* table widths*/
  --min-small: 98px;
  --max-small: 150px;
  --min-big: 125px;
  --max-big: 320px;
}

[data-color-scheme="light"] {
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;
}

html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  scroll-snap-type: y proximity;
  scroll-snap-stop: normal;
  height: 100vh;
  overflow-y: scroll;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
  margin-top: 4px;
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: 21px;
}
h5 {
  font-size: 21px;
  text-align: center;
}
h6 {
  font-size: 17px;
  text-align: center;
  font-weight: 440;
}

p {
  margin: 0 0 var(--space-16) 0;
}

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

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

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

section {
  scroll-snap-align: center;
  position: relative;
}

.rotate-35 {
  transform: rotate(35deg) scale(1) !important;
}

.rotate-330 {
  transform: rotate(330deg) scale(1) !important;
}

.color-yellow {
  color: var(--yellow);
}
.color-blue-logo {
  color: var(--blue-logo);
}
.text-logo {
  height: 2rem;
  vertical-align: middle;
  position: relative;
  translate: -5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:hover {
  transform: scale(1.05);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--yellow);
  color: var(--blue-logo);
}

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

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

.btn--secondary {
  background: var(--blue-logo);
  color: var(--yellow);
}

.btn--secondary:hover {
  background: var(--blue-logo-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

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

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg,
.btn--lg-dim {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}
.btn---cta {
  width: 70%;
  font-size: 18px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  padding-left: 6px;
  padding-right: 6px;
  /* display: block; */
  margin-bottom: 5px;
  font-weight: var(--font-weight-medium);
  font-size: 15px;
}
.align-right {
  text-align: right;
}
.form-group {
  margin-bottom: 16px;
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  /* padding-right: var(--space-16);
  padding-left: var(--space-16); */
}

@media (max-width: 430px) {
  .container {
    max-width: var(--container-xsm);
  }
  .header-cell {
    padding: 20px 5px !important;
  }
}
@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

.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 {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: "FKGroteskNeue";
  src: url("https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2")
    format("woff2");
}

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--space-32) 0;
}

@media (max-height: 585px) {
  .hero {
    min-height: 585px;
  }
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-light) 100%);
  z-index: -1;
}

.hero__background::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
      circle at 30% 20%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 80%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    );
}

.hero__content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  margin-top: 4%;
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: clamp(var(--font-size-3xl), 5vw, 60px);
  font-weight: var(--font-weight-bold);
  color: white;
  margin-bottom: var(--space-24);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1.2rem, 1vw + 1rem, 1.7rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 4dvh;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 768px) {
  .hero__subtitle {
    margin-top: 5px;
  }
}
@media (max-width: 710px) {
  .hero__subtitle {
    margin-left: 3%;
    margin-right: 3%;
  }
}

.hero__actions {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  flex-wrap: wrap;
}

.top-banner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--yellow);
  color: var(--blue-logo);
  text-align: center;
  padding: 11px 20px;
  font-weight: 600;
  font-size: 16px;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}
@media (max-width: 520px) {
  .top-banner {
    font-size: 14px;
  }
}


.btn--primary {
  background: var(--yellow);
  color: var(--blue-logo);
  border: none;
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-normal) var(--ease-standard);
}

.btn--primary:hover {
  background: var(--yellow);
  box-shadow: 0 8px 25px var(--yellow-hover);
  color: var(--blue-logo);
}

.btn--outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.calculator-section {
  padding: var(--space-32) 0;
  background: var(--color-background);
}

.calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-32);
  margin: 0 auto;
}

.calculator__inputs {
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: 28px 22px 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.calculator__results {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.result-card {
  background: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.calculator-section h3 {
  font-size: var(--font-size-calc);
  margin-bottom: 20px;
  color: var(--color-text);
  text-align: center;
}

.result-grid {
  gap: var(--space-16);
  display: flex;
  flex-direction: column;
  width: 100%;
  margin-top: 4px;
  margin-bottom: 22px;
}

.result-item {
  text-align: center;
  padding: 16px;
  background: var(--yellow-pastel);
  border-radius: var(--radius-base);
  border: 1px solid rgba(193, 148, 70, 0.2);
  width: 100%;
}

.result-label {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-top: 9px;
  margin-bottom: 2px;
}

.result-value {
  font-size: var(--font-size-result);
  font-weight: var(--font-weight-result);
  color: var(--cyan);
}

.slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #ddd;
  outline: none;
  margin: 0px;
  margin-top: 5px;
  margin-bottom: 13px;
  -webkit-appearance: none;
  appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--blue-logo);
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--yellow);
  cursor: pointer;
  border: none;
  color: var(--blue-logo);
}

.slider-value {
  position: absolute;
  top: -35px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cyan);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin: 14px 17px 26px 17px;
  color: var(--color-text);
}

.problem-section {
  padding: var(--space-32) 0;
  background: var(--color-surface);
}

.definition-section {
  min-height: 100dvh;
  background: var(--color-surface);
  box-sizing: border-box;
  padding: 0px 20px;
  overflow: hidden; /* Prevent image overflow */
  display: flex;
  align-items: center;
}

.definition-section .container {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.definition-section h2 {
  text-align: center;
  font-size: clamp(1.8rem, 5vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 40px;
}

.definition-section h2 span {
  color: #0d9488; /* verde acqua */
}
.definition-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 100px;
  margin-bottom: 100px;
  position: relative;
  flex-direction: row;
  min-height: 200px; /* Ensure minimum height for the block */
}

.definition-block .text {
  flex: 2;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: inherit;
}

.definition-block .text h3 {
  font-size: clamp(1.4rem, 4vw, 1.6rem);
  color: var(--color-text);
  margin-bottom: 15px;
}

.definition-block .text p {
  font-size: clamp(0.9rem, 2vw, 1rem);
  line-height: 1.6;
  color: #444;
}

.definition-block .image {
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: inherit;
}

.definition-block .image img {
  width: auto;
  max-width: 250px;
  height: auto;
  max-height: 180px;
  object-fit: contain;
  transition: transform 0.3s ease;
  transform: scale(2);
}

.definition-block .image img.small {
  max-width: 20px;
  max-height: 20px;
  right: 5%;
}

/* ===== Variante alternata con sfondo ===== */
.definition-block.alt {
  background: #f9f9f9;
  border-radius: 12px;
  padding: 30px;
  flex-direction: row-reverse;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .definition-section {
    padding: 40px 15px;
    flex-direction: column;
  }

  .definition-block {
    flex-direction: column;
    text-align: center;
    margin-bottom: 40px;
    gap: 20px;
  }

  .definition-block.alt {
    flex-direction: column;
    padding: 25px 15px;
  }

  .definition-block .text {
    min-width: 100%;
  }

  .definition-block .text h3 {
    font-size: 2rem;
  }

  .definition-block .text p {
    font-size: 1.3rem;
    line-height: 1.7;
  }

  .definition-block .image {
    margin: 10px 0;
    min-width: 160px;
  }

  .definition-block .image img {
    max-width: 140px;
    max-height: 140px;
  }

  .definition-block .image img.small {
    max-width: 30px;
    max-height: 30px;
    right: 40%;
  }
  
  .definition-block .image img.manager {
    max-width: 90%;
    max-height: 90%;
    transform: scale(1);
  }

  section {
    padding-top: 100px !important;
  }
}

@media (max-width: 480px) {
  .definition-block .text h3 {
    font-size: 1.8rem;
  }

  .definition-block .text p {
    font-size: 1.2rem;
  }

  .definition-block .image img {
    max-width: 120px;
    max-height: 50%;
    transform: scale(1);
  }

  .definition-block .image img.small {
    max-width: 35px;
    max-height: 35px;
  }

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

.players-section {
  padding: var(--space-32);
  border-radius: 8px;
  border: 8px dashed var(--cyan); /* --cyan-pastel */
  box-sizing: border-box;
  margin-top: 40px;
  margin-bottom: 55px;
  margin-inline: auto;
  background: white;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-24);
  margin: 0 auto;
}

.problem-card {
  display: flex;
  align-items: center;
  gap: 29px;
  background: white;
  padding: 28px;
  padding-left: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  /*text-align: center;*/
  transition: transform var(--duration-normal) var(--ease-standard);
}

.problem-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.quote-icon {
  flex: 0 0 46px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 46px;
}

.second-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

blockquote {
  color: var(--color-text);
  margin: 0px;
  margin-bottom: 14px;
}

cite {
  font-weight: bold;
}

.solution-section {
  padding: var(--space-32) 0;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-light) 100%);
}

.solution-section .section-title {
  color: white;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-24);
  margin: 0 auto;
}

.solution-card {
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.solution-card:hover {
  transform: scale(1.05);
  background: rgba(255, 255, 255, 0.15);
}

.solution-icon {
  font-size: 48px;
  margin-bottom: var(--space-16);
}

.solution-card h3 {
  color: white;
  margin-bottom: var(--space-12);
  font-size: var(--font-size-xl);
}

.solution-card p {
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  line-height: 1.6;
}

.comparison-section {
  padding: var(--space-32) 0;
  background: var(--color-background);
}

.comparison-table {
  width: 100%;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.table-header {
  display: grid;
  grid-template-columns: minmax(var(--min-big), var(--max-big)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small));
  background: #f8f9fa;
  border-bottom: 2px solid var(--color-border);
}

.header-cell {
    padding: 0.5rem;
  font-weight: var(--font-weight-bold);
  text-align: center;
    border-right: 1px solid var(--color-border);
  font-size: clamp(11px, 2vw, 15px);
}

.header-cell.brand {
  background: var(--cyan);
  color: white;
}

.table-row {
  display: grid;
    grid-template-columns: minmax(var(--min-big), var(--max-big)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small)) minmax(var(--min-small), var(--max-small));
  border-bottom: 1px solid var(--color-border);
}
.white-td{
  background: #f8f9fa;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /*justify-content: flex-end;*/
}
.feature-cell {
  padding: 16px 20px;
  font-weight: var(--font-weight-bold);
  border-right: 1px solid var(--color-border);
  font-size: clamp(11px, 2vw, 14px);
  margin-top: auto;
  margin-bottom: 0px; 
}

.value-cell {
  border-right: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.ok,.okok{
  color: var(--cyan);
  font-weight: 700;
  font-size: 1.4rem;
  height: 20px;
  margin: 2px auto;
  text-align: center;
}
.ok {
  color: rgb(91, 222, 255);
  font-weight: 100;
}
.not {
  color: rgb(143, 246, 255);
}

.absolute {
  flex: 1;
  display: flex;
  line-height: 1rem;
  width: 74%;
  /*max-width: 22222px;*/
  min-width: 69px;
  font-size: clamp(11px, 2vw, 14px);
  align-items: center;
  justify-content: center;
  text-align: center;
  margin: 14px auto;
}

.value-cell.good {
  background: rgba(84, 224, 255, 0.332);
  font-weight: var(--font-weight-medium);
}

.value-cell.tm {
  background: rgba(68, 176, 239, 0.579);
}

/* Testimonials Section -- EVENTUALMENTE DA AGGIUNGERE POI*/
.testimonials-section {
  padding: var(--space-32) 0;
  background: var(--color-surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-24);
  margin: 0 auto;
}

.testimonial-card {
  background: white;
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: transform var(--duration-normal) var(--ease-standard);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.testimonial-content p {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.testimonial-author {
  margin-bottom: var(--space-12);
}

.testimonial-author strong {
  display: block;
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.testimonial-author span {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.testimonial-result {
  background: rgba(107, 70, 193, 0.1);
  color: var(--cyan);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  display: inline-block;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.pricing-section {
  padding: var(--space-32) 0;
  background: var(--color-background);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  margin: 0 auto;
}

.pricing-card {
  background: white;
  padding: 32px;
  padding-left: 38px;
  padding-right: 38px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  position: relative;
  transition: transform var(--duration-normal) var(--ease-standard);
}

.pricing-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--yellow);
  box-shadow: 0 8px 32px var(--yellow);
  border-width: 3px;
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yellow);
  color: var(--blue-logo);
  padding: var(--space-4) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.pricing-card h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

.price {
  font-size: 200%;
  font-weight: var(--font-weight-bold);
  color: var(--cyan);
  line-height: 0.9;
  transform: translateY(-6px);
  position: relative;
}
.price-featured {
  font-size: clamp(160%, 4vw, 200%);
}

.price span {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.subscribers {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
}

.features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-32) 0;
  position: relative;
}
.top-pricing {
  padding: 0;
  margin: 0 0 var(--space-32) 0;
  position: relative;
}

.features li {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.features li:last-child {
  border-bottom: none;
}

.final-cta {
  padding: var(--space-32) 0;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-light) 100%);
  text-align: center;
}

.final-cta__content {
  max-width: 850px;
  margin: 0 auto;
  justify-content: center;
}

.final-cta h2 {
  font-size: var(--font-size-3xl);
  color: white;
  margin-bottom: var(--space-16);
}

.final-cta p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-32);
}

.guarantee-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 400px));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
  justify-content: center;
}

.guarantee-item {
  display: flex;
  gap: var(--space-8);
  color: white;
  font-weight: var(--font-weight-medium);
  align-items: center;
}

.guarantee-icon {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
}

@media (max-width: 840px) {
  .calculator {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__actions .btn {
    width: 82%;
    max-width: 300px;
  }

  .comparison-table {
    overflow-x: auto;
  }

  .table-header,
  .table-row {
    min-width: 470px;
  }

  .result-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .pricing-grid,
  .problem-grid,
  .solution-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
    padding: 0 20px;
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

html {
  scroll-behavior: smooth;
}

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

.form-control:focus {
  border-color: var(--yellow);
  color: var(--blue-logo);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.cta-primary {
  box-shadow: 0 4px 15px rgba(45, 144, 28, 0.3);
}

.cta-primary:hover {
  box-shadow: 0 8px 25px rgba(15, 63, 13, 0.4);
}

.container-sports {
  max-width: 900px;
  margin: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.section-sports {
  flex: 1 1 380px;
  border-radius: 8px;
  padding: 14px;
  padding-bottom: 0px;
  margin-bottom: 18px;
  box-shadow: 0 2px 6px var(--cyan-hover);
}
#tennis-section {
  background-color: white;
}
#padel-section {
  background-color: white;
}

input[type="number"] {
  width: 100%;
  padding: 6px 10px;
  margin-bottom: 3px;
  border-radius: 6px;
  font-size: 0.95em;
  box-sizing: border-box;
}
input[type="text"] {
  width: 100%;
  padding: 6px 10px;
  margin-bottom: 3px;
  border-radius: 6px;
  font-size: 1.1em;
  box-sizing: border-box;
  border-color: var(--cyan);
}

.player-label {
  display: block;
  font-weight: var(--font-weight-medium);
  font-size: 15px;
  margin-top: 16px;
  margin-bottom: 5px;
}

input[type="range"] {
  width: 100%;
  height: 27px;
  background: transparent;
  outline: none;
  padding-bottom: 26px;
  -webkit-appearance: none;
  appearance: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--yellow);
  border-radius: 5px;
}
/* Linea - Firefox */
input[type="range"]::-moz-range-track {
  height: 6px;
  background: var(--yellow);
  border-radius: 5px;
}
/* Thumb (il pallino) - Chrome/Safari/Edge */
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: var(--yellow);
  border-radius: 50%;
  border: none;
  margin-top: -6px;
  cursor: pointer;
}
/* Thumb - Firefox */
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--yellow);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}
.courts {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2%;
  padding-top: 0px;
  gap: 10px;
}

@media (max-width: 540px) {
  .courts {
    padding-top: 11px;
  }
}

.one_under {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.input-tennis,
.input-padel {
  border: 2px solid var(--yellow-half-pastel);
}

.charts__grid {
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-32);
}

.canv-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  flex: 1 1 300px;
  height: 610px;
  justify-content: center;
  padding: 1.2%;
  min-width: 400px;
  padding-bottom: 0.5%;
}
@media (max-width: 768px) {
  .canv-container {
    min-width: 80%;
  }
}
canvas {
  display: block;
  text-align: center;
}
#reasonsChart {
  width: 80% !important;
  height: 80% !important;
}
#attendanceChart {
  width: 95% !important;
  height: 75% !important;
}

.canv-title {
  text-align: center;
  width: 85%;
  margin-bottom: 5px;
  font-size: 20px;
}
.canv_title_bottom {
  margin-bottom: 18px;
}
.canv-subtitle {
  color: #2189ff;
  background: #c4f0ff;
  box-sizing: border-box;
  border-radius: var(--radius-md);
  border: 1px solid #63aafa;
  margin-top: 7px;
  margin-bottom: 22px;
  padding: 4px 7px;
  font-size: 13px;
  font-weight: 560;
}

.bottom-btn {
  position: absolute;
  bottom: 7%;
  left: 50%;
  transform: translateX(-50%);
}
.bottom-btn:hover {
  transform: translateX(-50%) scale(1.05);
}

.email-container {
  width: 100%;
  padding-bottom: 2px;
}
#email_in {
  width: 78%;
  min-width: 160px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 2px solid var(--yellow);
  font-size: 1.2em;
  box-sizing: border-box;
  margin-left: 1px;
}

@media (max-width: 540px) {
  #email_in {
    width: 93%;
  }
}

#tennisMatchesDisplay,
#padelMatchesDisplay {
  position: relative;
  top: -23px;
  background-color: var(--yellow);
  color: var(--blue-logo);
  padding: 4px 8px;
  border-radius: 4px;
  pointer-events: none;
  white-space: nowrap;
  z-index: 10;
  font-size: 12px;
  font-weight: 500;
  left: -1px;
}

#slider_container_t,
#slider_container_p {
  position: relative;
  width: 96%;
  padding: 0px;
  margin-left: 2%;
  margin-right: 2%;
}

@media (max-width: 768px) {
  #tennisMatchesDisplay,
  #padelMatchesDisplay {
    font-size: 11px;
    padding: 3px 6px;
    top: -23px;
    left: 1px;
  }
}

#img_pallina {
  width: 4dvw;
  left: 4.4%;
  top: 17%;
  max-width: 50px;
  min-width: 22px;
}

#img_pallina2 {
  width: 4dvw;
  left: 2%;
  top: 19%;
  max-width: 35px;
  min-width: 22px;
}

#img_tennis {
  width: 30dvw;
  left: -3%;
  top: -1%;
  max-width: 320px;
  min-width: 170px;
  aspect-ratio: 1.47;
  transform: rotate(8deg);
}
#img_padel {
  width: 8dvw;
  left: 0%;
  bottom: 5%;
  max-width: 160px;
  min-width: 50px;
}

#img_outfit {
  width: 26dvw;
  left: 6%;
  bottom: 0%;
  max-width: 300px;
  min-width: 180px;
}

#img_campo {
  width: 25dvw;
  right: -7%;
  top: -22%;
  max-width: 330px;
  min-width: 150px;
  transform: rotate(-20deg);
}

#img_2people {
  width: 11dvw;
  left: 23%;
  top: 90px;
  max-width: 180px;
  min-width: 50px;
}

#img_4people {
  width: 13.5dvw;
  right: 4%;
  bottom: 4%;
  max-width: 225px;
  min-width: 100px;
}

@media (max-width: 929px) {
  #img_tennis {
    top: 2.5%;
    left: -10%;
    min-width: 110px;
  }

  #img_pallina {
    top: 20%;
    min-width: 15px;
  }

  #img_pallina2 {
    top: 22%;
    min-width: 15px;
  }
}
@media (max-width: 768px) {
  #img_tennis {
    top: 5%;
    left: -10%;
    min-width: 160px;
  }

  #img_pallina {
    top: 20%;
    min-width: 20px;
  }

  #img_pallina2 {
    top: 22%;
    min-width: 20px;
  }
}

@media (max-width: 460px) {
  #img_tennis {
    top: 8%;
    left: -10%;
    min-width: 160px;
  }
}

@media (max-width: 550px) {
  #img_2people {
    left: 25%;
    top: 135px;
    min-width: 80px;
  }

  #img_4people {
    width: 12.5dvw;
    right: 4%;
    bottom: 3%;
    min-width: 80px;
  }
}

@media (max-width: 460px) {
  #img_2people {
    right: 13%;
    left: auto;
    min-width: 110px;
    top: 120px;
  }
}

img {
  position: absolute;
}

#img_thematch {
  width: 90%;
  position: relative;
}

.small-p {
  font-size: clamp(6px, 4vw, 12px);
  margin-bottom: 10px;
}
#asteriscoBox {
  margin-top: 18px;
  padding-left: 5%;
  padding-right: 5%;
}

@media (max-width: 644px) {
  .container {
    max-width: var(--container-lg);
  }
}

.players-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.players-inputs {
  margin-top: 9px;
  margin-bottom: 14px;
  width: 40%;
  min-width: 215px;
}

.sm-bottom {
  margin-top: 10px;
  margin-bottom: 10px;
  color: var(--cyan);
}
.p-button-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
#player-button {
  border: 1px solid var(--color-border);
  color: white;
  background: var(--cyan);
  width: 20dvw;
  min-width: 120px;
  margin-top: 20px;
  height: 40px;
}

@media (max-width: 679px) {
  h6 {
    font-size: 15px;
  }
}
@media (max-width: 580px) {
  h6 {
    font-size: 14px;
  }
}

.container-table {
  overflow-x: auto;
  position: relative;
  clip-path: inset(0 0 0 16px); 
}

table th:first-child,
table td:first-child {
  position: sticky;
  left: 0;
  background-color: #fff;
  z-index: 2; 
}

#email_out {
  text-align: center;
  margin: 15px auto 0;
}

.bottom-calc-container {
  display: flex;
  align-items: end;
}

#scorri_risultati {
  text-align: center;
  height: 4rem;
  width: 126px;
  background: var(--yellow);
  font-weight: bold;
  font-size: 15px;
  border-radius: 5px;
  border: 2px dashed var(--yellow-light);
  box-sizing: border-box;
  padding: 3px;
}

@media (min-width: 841px) {
  #scorri_risultati {
    display: none;
  }
}

@media (max-height: 680px) {
  #img_thematch {
    width: 75%;
  }
  .hero__subtitle {
    font-size: 17px;
    margin-bottom: 14px;
  }
  .btn--lg-dim {
    padding: 6px 16px;
    font-size: 13px;
    border-radius: var(--radius-md);
  }
}

#customAlertOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#customAlertBox {
  background: var(--color-background);
  padding: 24px 36px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
  text-align: center;
  width: 84%;
  max-width: 500px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

#customAlertBox p {
  margin: 0;
  font-size: 16px;
  flex: 1;
  text-align: left;
}

#customAlertBox button {
  padding: 8px 16px;
  font-size: 28px;
  border: none;
  border-radius: 5px;
  background-color: var(--cyan);
  color: white;
  cursor: pointer;
  flex-shrink: 0;
}

#customAlertBox button:hover {
  background-color: #0056b3;
}

/* Responsive: se lo schermo è stretto, impila verticalmente */
@media (max-width: 430px) {
  #customAlertBox {
    padding: 16px 20px;
    flex-direction: column;
    align-items: stretch;
    text-align: left;
  }

  #customAlertBox button {
    align-self: flex-end;
    margin-top: 7px;
    font-size: 20px;
  }
  #customAlertBox p {
    font-size: 14px;
  }
}