/* ==========================================================================
   Aquarial Landing Page — Raffrescamento Capannoni Industriali
   ========================================================================== */

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

:root {
  /* Colors */
  --color-primary: #0085C7;
  --color-primary-dark: #006a9e;
  --color-primary-light: rgba(0, 133, 199, 0.12);
  --color-dark: #1B1B1B;
  --color-dark-alt: #222222;
  --color-light: #FFFFFF;
  --color-light-alt: #F5F7FA;
  --color-gray: #999999;
  --color-gray-light: #E0E0E0;
  --color-text-dark: #1B1B1B;
  --color-text-light: #FFFFFF;
  --color-text-muted: #AAAAAA;
  --color-success: #10b981;
  --color-error: #ef4444;

  /* Fonts */
  --font-heading: 'bc-novatica-cyr', Arial, system-ui, -apple-system, "Helvetica Neue", sans-serif;
  --font-body: 'neue-haas-unica', Arial, system-ui, -apple-system, "Helvetica Neue", sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background: var(--color-light);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

input,
textarea {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

.font-numeric {
  font-family: var(--font-heading);
  font-variant-numeric: slashed-zero;
  font-weight: 500;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  border-radius: 0;
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

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

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

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

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

.btn-outline-light {
  background: transparent;
  color: var(--color-light);
  border-color: #ffffff33;
}

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

.btn-large {
  padding: var(--space-5) var(--space-10);
  font-size: 1.05rem;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

.reveal-delay-5 {
  transition-delay: 0.5s;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  display: flex;
  align-items: center;
  transition: all var(--transition-base);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.header-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-logo span {
  color: var(--color-primary);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header-nav a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.header-nav a:hover {
  color: var(--color-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-phone {
  color: var(--color-light);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.header-phone .phone-icon {
  margin-right: var(--space-2);
}

.header-cta {
  padding: var(--space-3) var(--space-6);
  font-size: 0.85rem;
  background: var(--color-primary-dark);
  color: var(--color-light);
  border-color: var(--color-primary-dark);
}

.header-cta:hover {
  background: var(--color-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Scrolled state */
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-light);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.header-logo .logo-primary {
  display: none;
}

.site-header.scrolled .header-logo .logo-white {
  display: none;
}

.site-header.scrolled .header-logo .logo-primary {
  display: block;
}

.site-header.scrolled .header-nav a {
  color: rgba(27, 27, 27, 0.7);
}

.site-header.scrolled .header-nav a:hover {
  color: var(--color-dark);
}

.site-header.scrolled .header-phone {
  color: var(--color-dark);
}

.site-header.scrolled .header-cta {
  background: var(--color-primary);
  color: var(--color-light);
  border-color: var(--color-primary);
}

/* Mobile menu toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: var(--space-2);
  cursor: pointer;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-light);
  transition: all var(--transition-base);
}

.site-header.scrolled .mobile-toggle span {
  background: var(--color-dark);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-dark);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}

.mobile-overlay.active {
  display: flex;
}

.mobile-overlay a {
  color: var(--color-light);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  transition: color var(--transition-fast);
}

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

@media (max-width: 900px) {

  .header-nav,
  .header-actions .header-phone {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  .header-actions .header-cta {
    display: none;
  }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-dark);
  color: var(--color-text-light);
  padding: 120px 0 var(--space-16);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0, 133, 199, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 133, 199, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* Decorative grid */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  border: 1px solid rgba(0, 133, 199, 0.25);
}

.hero h1 {
  max-width: 800px;
  margin-bottom: var(--space-6);
}

.hero h1 em {
  font-style: normal;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-subtitle {
  max-width: 640px;
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-10);
  text-align: center;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-cta .btn {
  font-size: 1rem;
}

/* Trust badges */
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: center;
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.trust-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1rem;
}

/* Stats bar */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
}

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

.stat-value {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-primary);
  font-variant-numeric: slashed-zero;
  line-height: 1.2;
}

.stat-label {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

@media (max-width: 600px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ==========================================================================
   SECTION — IL PROBLEMA
   ========================================================================== */
.section-problem {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: var(--space-24) 0 var(--space-20);
}

.section-title {
  margin-bottom: var(--space-16);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title h2 {
  margin-bottom: var(--space-8);
  color: var(--color-primary);
}

.section-problem .section-title h2,
.section-process .section-title h2,
.section-sectors .section-title h2,
.section-final-cta .section-title h2 {
  color: var(--color-text-light);
}

.section-title p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 600px;
}

.section-problem .section-title p {
  color: rgba(255, 255, 255, 0.8);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.problem-card {
  border-top: 1px solid var(--color-light);
  padding: var(--space-8) 0;
  transition: all var(--transition-base);
}

.problem-icon {
  margin-bottom: var(--space-5);
  color: var(--color-light);
}

.problem-icon svg {
  width: 54px;
  height: 54px;
}

.problem-card h3 {
  margin-bottom: var(--space-3);
  font-size: 1.3rem;
  color: var(--color-text-light);
}

.problem-card p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  line-height: 1.6;
}

.problem-closing {
  text-align: center;
  font-size: 1.2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-light);
}

.problem-closing .btn {
  margin-top: var(--space-6);
}

.problem-closing .btn-primary {
  background: var(--color-light);
  color: var(--color-primary);
  border-color: var(--color-light);
}

.problem-closing .btn-primary:hover {
  background: transparent;
  color: var(--color-light);
  border-color: var(--color-light);
}

@media (max-width: 600px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   SECTION — LA SOLUZIONE
   ========================================================================== */
.section-solution {
  background: var(--color-light);
  color: var(--color-text-dark);
  padding: var(--space-20) 0 var(--space-24);
}

.solution-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  margin-bottom: var(--space-16);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.solution-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 var(--space-6);
  align-items: start;
  background: none;
  color: var(--color-text-dark);
  padding: 0;
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-gray-light);
  transition: none;
}

.solution-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.solution-number {
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--color-primary);
  /* opacity: 0.2; */
  line-height: 1;
  font-variant-numeric: slashed-zero;
  grid-row: 1 / 3;
}

.solution-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  font-size: 1.5rem;
  align-self: end;
}

.solution-card p {
  color: var(--color-text-dark);
  font-size: 0.95rem;
  line-height: 1.7;
  grid-column: 2;
}

.smartqool-note {
  background: var(--color-light-alt);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-6) var(--space-8);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-dark);
  margin-top: var(--space-12);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.smartqool-note strong {
  color: var(--color-primary);
}

.solution-cta {
  margin-top: var(--space-12);
  text-align: center;
}

.solution-cta .btn-primary {
  background: var(--color-primary);
  color: var(--color-light);
  border-color: var(--color-primary);
}

.solution-cta .btn-primary:hover {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ==========================================================================
   SECTION — COME FUNZIONA
   ========================================================================== */
.section-process {
  background: var(--color-primary) url('../img/process-bg.jpg') center / cover no-repeat;
  color: var(--color-text-light);
  padding: var(--space-24) 0 var(--space-24);
  position: relative;
}

.section-process::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  opacity: 0.9;
}

.section-process>.container {
  position: relative;
  z-index: 1;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.process-card {
  padding: var(--space-8) var(--space-6) var(--space-8) 0;
  background: none;
  border: none;
  border-top: 1px solid white;
  transition: border-color var(--transition-base);
}

.process-number {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1;
  margin-bottom: var(--space-5);
  font-variant-numeric: slashed-zero;
  letter-spacing: 0.06em;
}

.process-card h3 {
  margin-bottom: var(--space-3);
  font-size: 1.5rem;
}

.process-card p {
  font-size: 0.875rem;
  line-height: 1.65;
}

@media (max-width: 900px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }

  .process-card {
    padding-right: var(--space-6);
  }
}

@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
  }

  .process-card {
    padding-right: 0;
  }
}

/* ==========================================================================
   SECTION — SETTORI
   ========================================================================== */
.section-sectors {
  background: var(--color-dark-alt);
  color: var(--color-text-light);
  padding: var(--space-16) 0 var(--space-20);
}

.sectors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.sector-tag {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.sector-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-light);
  background: rgba(0, 133, 199, 0.08);
}

.sector-tag-icon {
  font-size: 1.25rem;
}

@media (max-width: 600px) {
  .sectors-grid {
    gap: var(--space-2);
  }

  .sector-tag {
    font-size: 0.8rem;
    padding: var(--space-3) var(--space-4);
  }
}

/* ==========================================================================
   SECTION — FAQ
   ========================================================================== */
.section-faq {
  background: var(--color-light);
  color: var(--color-text-dark);
  padding: var(--space-20) 0 var(--space-24);
}

.section-faq .section-title h2 {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 2.4rem;
}

.faq-list {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-primary);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-6) 0;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--color-text-dark);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  border: 1px solid #b0b8c1;
  border-radius: 50%;
  transition: border-color var(--transition-base);
}

.faq-icon::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  border-right: 1px solid #b0b8c1;
  border-bottom: 1px solid #b0b8c1;
  transform: translate(-50%, -65%) rotate(45deg);
  transition: all var(--transition-base);
}

.faq-icon::after {
  display: none;
}

.faq-item.active .faq-icon {
  border-color: var(--color-primary);
}

.faq-item.active .faq-icon::before {
  border-color: var(--color-primary);
  transform: translate(-50%, -35%) rotate(-135deg);
}

.faq-item.active .faq-question {
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer-inner {
  padding: 0 0 var(--space-6);
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ==========================================================================
   SECTION — CTA FINALE
   ========================================================================== */
.section-final-cta {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: var(--space-20) 0;
  text-align: center;
}

.section-final-cta h2 {
  margin-bottom: var(--space-5);
}

.section-final-cta .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: var(--space-10);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.final-phone-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.final-phone-label {
  opacity: 0.8;
  font-size: 1rem;
}

.final-phone {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
}

.final-phone-note {
  opacity: 0.6;
  font-size: 0.875rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-light);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-brand-name span {
  color: var(--color-primary);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-light);
  margin-bottom: var(--space-5);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.footer-bottom a {
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 700px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}