/* =====================================================
   VARIABILI CSS & BASE RESET
===================================================== */
:root {
  --cyan:        #00d4f5;
  --cyan-bright: #00f0ff;
  --cyan-dim:    #0095c8;
  --cyan-glow:   rgba(0, 212, 245, 0.35);
  --bg-deep:     #02070d;
  --bg-mid:      #050c14;
  --bg-card:     rgba(5, 12, 20, 0.7);
  --text-white:  #ffffff;
  --text-light:  #ccdde8;
  --text-muted:  #7a96aa;
  --border-dim:  rgba(255,255,255,0.07);
  --red:         #ef4444;
  --green:       #10b981;
  --font-display: 'Barlow Condensed', 'Barlow', system-ui, sans-serif;
  --font-body:    'Barlow', system-ui, sans-serif;
  --font-mono:    'Space Mono', monospace;
}

*, *::before, *::after {
  margin: 0; padding: 0;
  box-sizing: border-box;
}

html { 
  font-size: 16px; scroll-behavior: smooth; 
}

body {
  font-family: var(--font-body);
  background: radial-gradient(1400px 800px at 50% -200px, #0b3a55 0%, var(--bg-deep) 55%, var(--bg-deep) 100%);
  color: var(--text-light);
  overflow-x: hidden;
  line-height: 1.6;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 5vw, 40px);
}

/* =====================================================
   TIPOGRAFIA
===================================================== */

.section-heading-xl {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--text-white);
  text-transform: uppercase;
}

.neon-word {
  display: inline;
  color: transparent;
  background: linear-gradient(135deg, var(--cyan-bright) 0%, var(--cyan) 50%, var(--cyan-dim) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(0, 212, 245, 0.55))
          drop-shadow(0 0 40px rgba(0, 212, 245, 0.2));
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--text-white);
  text-transform: uppercase;
  margin-bottom: 0;
}

.hero h1 .hero-accent {
  display: block;
  font-style: italic;
  padding: 25px;
  color: transparent;
  background: linear-gradient(135deg, var(--cyan-bright) 0%, var(--cyan) 55%, var(--cyan-dim) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 24px rgba(0, 212, 245, 0.6))
          drop-shadow(0 0 60px rgba(0, 212, 245, 0.25));
  line-height: 0.9;
}

.eyebrow-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
  opacity: 0.85;
}

.journey-text h3 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--text-white);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.intel-box h5 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-white);
  margin-bottom: 14px;
}

/* =====================================================
   HEADER
===================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: 68px;
  z-index: 1000;
  background: linear-gradient(to bottom, rgba(2,7,13,.92), rgba(2,7,13,0));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo { display: flex; align-items: center; flex-shrink: 0; transition: transform 0.3s; }
.logo:hover { transform: scale(1.03); }

.logo-img {
  height: 36px; width: auto;
  filter: drop-shadow(0 0 8px rgba(0,212,245,0.55));
  transition: filter 0.3s;
}
.logo:hover .logo-img { filter: drop-shadow(0 0 14px rgba(0,212,245,0.9)); }

.language-selector { position: relative; cursor: pointer; flex-shrink: 0; }

.lang-current {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  padding: 7px 13px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.09);
  color: #fff;
  font-size: 0.85rem;
  white-space: nowrap;
  transition: all 0.25s;
}
.language-selector:hover .lang-current {
  background: rgba(0,212,245,0.08);
  border-color: rgba(0,212,245,0.35);
}

.lang-current img { width: 20px; border-radius: 2px; flex-shrink: 0; }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 175px;
  background: #0b111a;
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 12px;
  list-style: none;
  padding: 6px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.7);
  opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.22s cubic-bezier(0.4,0,0.2,1);
}
.language-selector:hover .lang-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }

.lang-dropdown li a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 11px;
  color: #b0c8d8; font-size: 0.83rem;
  border-radius: 7px; white-space: nowrap;
  transition: all 0.18s;
}
.lang-dropdown li a:hover {
  background: rgba(0,212,245,0.12);
  color: #fff;
  padding-left: 15px;
}

/* =====================================================
   HERO
===================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 100px 0 80px;
}

.hero-video {
  position: absolute;
  top: 50%; left: 50%;
  min-width: 100%; min-height: 100%;
  transform: translate(-50%,-50%);
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(160deg,
    rgba(2,7,13,0.55) 0%,
    rgba(2,7,13,0.80) 60%,
    rgba(2,7,13,0.97) 100%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* Eyebrow inside hero */
.hero-eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.8;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.5); opacity: 0.5; }
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.65;
}
.hero-subtitle strong { color: var(--text-light); font-weight: 600; }

.hero-steps-container { width: 100%; max-width: 900px; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.step-card {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 100px;
  transition: all 0.3s ease;
}
.step-card:hover {
  background: rgba(0,212,245,0.06);
  border-color: rgba(0,212,245,0.35);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,212,245,0.08);
}

.step-icon {
  width: 46px; height: 46px;
  background: rgba(0,212,245,0.08);
  border: 1px solid rgba(0,212,245,0.25);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--cyan);
  filter: drop-shadow(0 0 6px rgba(0,212,245,0.3));
}

.step-title {
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.3;
  margin: 0;
  text-align: left;
}

/* CTA button */
.hero-actions { display: flex; justify-content: center; }

.btn-demo {
  display: inline-block;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--cyan-bright), var(--cyan-dim));
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 50px;
  box-shadow: 0 0 24px rgba(0,212,245,0.35);
  transition: 0.28s ease;
}
.btn-demo:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 0 40px rgba(0,212,245,0.6);
}

/* =====================================================
   BUTTONS
===================================================== */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 50px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all 0.28s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan-bright), var(--cyan-dim));
  color: #fff;
  box-shadow: 0 0 28px rgba(0,212,245,0.4);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 44px rgba(0,212,245,0.7);
}

/* =====================================================
   SEZIONE PAIN POINT E SOLUZIONI
===================================================== */
.nex-comparison {
  padding: clamp(60px, 10vw, 120px) 0;
  background: var(--bg-deep);
}

.section-title-container {
  text-align: center;
  margin-bottom: clamp(40px, 7vw, 80px);
}

.nex-flex {
  display: flex;
  gap: 28px;
  justify-content: center;
  align-items: stretch;
  max-width: 1100px;
  margin: 0 auto;
}

.nex-box {
  flex: 1;
  background: var(--bg-mid);
  border-radius: 28px;
  padding: clamp(28px, 5vw, 48px);
  display: flex; flex-direction: column;
  transition: all 0.3s ease;
}
.box-red  { border: 1px solid rgba(239,68,68,0.18); }
.box-green{ border: 1px solid rgba(16,185,129,0.18); }
.box-red:hover  { border-color: rgba(239,68,68,0.45); }
.box-green:hover{ border-color: rgba(16,185,129,0.45); }

.nex-header { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.nex-header h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}
.box-red h3, .box-red .nex-icon  { color: var(--red); }
.box-green h3, .box-green .nex-icon { color: var(--green); }

.header-subtext { color: var(--text-muted); font-size: 0.92rem; line-height: 1.45; }

.nex-list { list-style: none; padding: 0; margin: 0 0 36px; flex-grow: 1; }
.nex-list li { display: flex; align-items: flex-start; gap: 14px; color: var(--text-light); margin-bottom: 18px; line-height: 1.5; }

.list-icon-wrapper {
  width: 34px; height: 34px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: rgba(255,255,255,0.02);
}
.box-red .list-icon-wrapper  { border: 1px solid rgba(239,68,68,0.18); color: var(--red); }
.box-green .list-icon-wrapper { border: 1px solid rgba(16,185,129,0.18); color: var(--green); }
.list-icon-wrapper svg { width: 17px; height: 17px; stroke-width: 2.5; }

.nex-footer { margin-top: auto; padding-top: 28px; border-top: 1px solid var(--border-dim); }
.nex-footer p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.6; }

/* =====================================================
   HARDWARE JOURNEY
===================================================== */
.hardware-journey {
  position: relative;
  background: var(--bg-deep);
  padding: clamp(60px, 10vw, 100px) 0;
  overflow: hidden;
}

.tech-divider-bridge {
  position: relative;
  width: 100%;
  height: 100px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  margin: -8px 0; z-index: 5;
}
.bridge-line {
  width: 1px; height: 35px;
  background: linear-gradient(to bottom, var(--cyan), rgba(0,212,245,0.15));
}
.bridge-node {
  width: 7px; height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 12px var(--cyan);
  margin: 4px 0; position: relative;
}
.bridge-node::after {
  content: '';
  position: absolute; inset: -3px;
  border: 1px solid rgba(0,212,245,0.35);
  animation: pulseNode 2.5s infinite;
}
.bridge-line-angled {
  width: 160px; height: 1px;
  background: linear-gradient(to right, transparent, rgba(0,212,245,0.45), transparent);
  transform: rotate(-12deg);
  margin-top: 14px;
}
.tech-divider-bridge.reverse .bridge-line-angled { transform: rotate(12deg); }

@keyframes pulseNode {
  0%   { transform: rotate(45deg) scale(1); opacity: 1; }
  100% { transform: rotate(45deg) scale(2.2); opacity: 0; }
}

.journey-row { position: relative; padding: clamp(40px,7vw,80px) 0; }
.journey-flex { display: flex; align-items: center; gap: clamp(40px, 8vw, 100px); }
.journey-row.reverse .journey-flex { flex-direction: row-reverse; }

.journey-text { flex: 1; }
.step-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 14px;
  display: block;
}
.journey-text p {
  color: var(--text-muted);
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  line-height: 1.7;
  max-width: 480px;
}

.journey-image { flex: 1; }
.glass-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.015);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  transition: all 0.5s cubic-bezier(0.2,1,0.3,1);
  cursor: pointer;
}
.glass-frame img { width: 100%; transition: transform 0.7s ease, opacity 0.5s ease; opacity: 0.82; }
.glass-frame:hover {
  transform: translateY(-10px);
  border-color: rgba(0,212,245,0.4);
  box-shadow: 0 30px 70px rgba(0,212,245,0.1);
}
.glass-frame:hover img { transform: scale(1.05); opacity: 1; }

.tech-list { list-style: none; padding: 20px 0 0; }
.tech-list li {
  color: #e2ecf3;
  font-size: 0.92rem;
  margin-bottom: 10px;
  padding-left: 18px;
  position: relative;
}
.tech-list li::before {
  content: "";
  position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 4px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 7px var(--cyan);
}

/* =====================================================
   GLASS CARD
===================================================== */
/* .glass-card { padding: clamp(60px, 10vw, 100px) 0; }

.glass-card-container {
  background: rgba(2,7,13,0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 28px;
  padding: clamp(32px, 6vw, 72px) clamp(24px, 5vw, 60px);
  max-width: 1100px;
  margin-inline: auto;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.55);
}

.glass-section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 300;
  color: #fff;
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.glass-section-title span { color: #7fd9ff; display: block; font-weight: 800; margin-top: 6px; }

.competence-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 0;
}

.competence-item {
  display: flex;
  align-items: flex-start;
  padding: clamp(20px, 3vw, 32px);
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 16px;
  transition: all 0.35s cubic-bezier(0.165,0.84,0.44,1);
}
.competence-item:hover {
  background: rgba(0,212,245,0.05);
  border-color: rgba(0,212,245,0.3);
  transform: translateY(-4px);
}

.icon-box {
  width: 48px; height: 48px;
  background: rgba(0,212,245,0.06);
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  margin-right: 20px; flex-shrink: 0;
  border: 1px solid rgba(0,212,245,0.12);
  color: #7fd9ff;
}

.text-box h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  text-transform: uppercase;
} */

/* =====================================================
   VALORE
===================================================== */
.nex-intel {
  background: var(--bg-deep);
  padding: clamp(70px, 12vw, 120px) 0;
  overflow: hidden;
  border: 1px solid rgba(0, 212, 245, 0.3);
}

.intel-header-main {
  text-align: center;
  margin-bottom: 50px;
}
.intel-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 18px auto 0;
  line-height: 1.65;
}

.intel-terminal-header {
  margin-bottom: 55px;
  display: flex; align-items: center; gap: 18px;
}
.terminal-line {
  height: 1px; flex-grow: 1;
  background: linear-gradient(to right, var(--cyan), transparent);
}
.terminal-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  white-space: nowrap;
  color: rgba(0,212,245,0.6);
}

.intel-impact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin-bottom: 70px;
}

.intel-big-data {
  display: flex; align-items: center;
  position: relative; padding: 28px;
  transition: all 0.4s ease;
}
.data-content { padding: 0 36px; width: 100%; }

.data-value {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}
.nex-neon {
  background: linear-gradient(135deg, var(--cyan-bright), var(--cyan-dim));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 16px rgba(0,212,245,0.5));
}

.data-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  margin: 14px 0;
  letter-spacing: 0.18em;
  display: block;
  opacity: 0.8;
}
.metric-desc { color: var(--text-muted); font-size: 0.92rem; line-height: 1.6; }

.data-bracket {
  width: 22px; height: 100%;
  border: 2px solid rgba(0,212,245,0.28);
  position: absolute; top: 0;
}
.data-bracket.left  { left: 0;  border-right: none; }
.data-bracket.right { right: 0; border-left: none; }

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

.intel-box {
  position: relative;
  background: rgba(255,255,255,0.02);
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 4px;
  transition: all 0.35s cubic-bezier(0.165,0.84,0.44,1);
  display: flex; flex-direction: column;
}

.box-edge {
  position: absolute; top: -1px; left: -1px;
  width: 20px; height: 20px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.box-icon {
  color: var(--cyan); margin-bottom: 22px;
  filter: drop-shadow(0 0 8px rgba(0,212,245,0.4));
}
.box-p { font-size: 0.88rem; color: #b8cdd8; margin-bottom: 18px; line-height: 1.55; }

.diagnostic-screen {
  background: rgba(0,0,0,0.5);
  padding: 18px;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  border: 1px solid rgba(0,212,245,0.14);
  margin-top: auto;
}
.diag-line {
  display: flex; justify-content: space-between;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.4);
}
.diag-line.warn .val { color: #ffaa00; animation: nexBlink 1.2s infinite; }
.diag-line .val { color: #00ffaa; font-weight: bold; }
@keyframes nexBlink { 50% { opacity: 0.25; } }

.intel-list { list-style: none; padding: 0; margin-top: auto; }
.intel-list li {
  font-size: 0.84rem; color: var(--text-muted);
  margin-bottom: 11px;
  display: flex; align-items: center; gap: 10px;
}
.intel-list li::before {
  content: ""; width: 4px; height: 4px;
  background: var(--cyan); border-radius: 50%;
  box-shadow: 0 0 5px var(--cyan);
  flex-shrink: 0;
}

.intel-box:hover, .intel-box.active {
  background: rgba(0,212,245,0.05);
  border-color: rgba(0,212,245,0.38);
  transform: translateY(-7px);
}

/* =====================================================
   FAQ / ACCORDION
===================================================== */
.faq-section { padding: clamp(60px, 10vw, 96px) 0; }

.section-heading.center {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  text-align: center;
  margin-bottom: 48px;
  color: var(--text-white);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.accordion { max-width: 800px; margin-inline: auto; }
.accordion-item { border-bottom: 1px solid rgba(255,255,255,0.08); }

.accordion-header {
  width: 100%;
  padding: 20px 0;
  background: none; border: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  font-weight: 500;
  color: #d8eaf5;
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  transition: color 0.3s;
  outline: none;
}
.accordion-header::after {
  content: "";
  width: 8px; height: 8px;
  border-right: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(45deg);
  transition: transform 0.3s, border-color 0.3s;
  margin-left: 14px; flex-shrink: 0;
}
.accordion-item.active .accordion-header { color: var(--cyan); }
.accordion-item.active .accordion-header::after { transform: rotate(-135deg); border-color: var(--cyan); }

.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.42s cubic-bezier(0.4,0,0.2,1); }
.content-inner { padding-bottom: 28px; padding-right: 14px; }
.accordion-content p { color: var(--text-muted); line-height: 1.65; margin-bottom: 14px; }
.accordion-content p:last-child { margin-bottom: 0; }

/* =====================================================
   CTA
===================================================== */
.cta-section { padding: clamp(60px, 10vw, 96px) 0; }
.cta-box {
  text-align: center;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 5vw, 40px);
  border-radius: 28px;
  border: 1px solid rgba(0,212,245,0.1);
  background: rgba(0,212,245,0.03);
}
.cta-box p {
  margin: 0 auto 32px;
  max-width: 560px;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

/* =====================================================
   FOOTER
===================================================== */
.site-footer { padding: 36px 0; }
.site-footer p { font-size: .8rem; color: #5a7585; text-align: center; }

/* =====================================================
   SCROLL REVEAL
===================================================== */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s cubic-bezier(.22,1,.36,1);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.reveal-soft {
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(.22,1,.36,1);
}
.reveal-soft.is-visible { opacity: 1; transform: translateY(0); }

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 1024px) {
  .nex-flex { flex-direction: column; align-items: center; }
  .nex-box { width: 100%; max-width: 600px; }

  .intel-impact-row { grid-template-columns: 1fr; justify-items: center; }
  .intel-big-data { width: 100%; max-width: 600px; text-align: center; }
  .data-content { padding: 0 18px; }

  .intel-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .intel-box { align-items: center; text-align: center; }
  .intel-list { text-align: left; display: inline-block; }
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 768px) {
  .site-header { height: 60px; }
  .logo-img { height: 28px; }

  .hero { padding: 80px 0 60px; min-height: 100svh; }

  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  .step-card { min-height: auto; }

  .journey-flex,
  .journey-row.reverse .journey-flex {
    flex-direction: column;
    text-align: center;
    gap: 36px;
  }
  .journey-text p { margin: 0 auto; }
  .tech-list { text-align: left; }
  .tech-divider-bridge { display: none; }

  .competence-grid { grid-template-columns: 1fr; gap: 16px; }
  .glass-card-container { margin: 0 8px; }

  .section-title-container { text-align: left; }

  .intel-terminal-header { display: none; }
  .data-bracket { display: none; }
  .intel-big-data {
    border-top: 1px solid rgba(0,212,245,0.18);
    border-bottom: 1px solid rgba(0,212,245,0.18);
    padding: 36px 8px;
  }
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 480px) {
  html { font-size: 15px; }

  .lang-current span:not(.arrow) { display: none; }
  .lang-current { padding: 6px 10px; gap: 6px; }

  .hero-eyebrow { font-size: 0.65rem; }

  .btn-demo { padding: 14px 26px; font-size: 0.82rem; }
  .btn { padding: 12px 22px; font-size: 0.82rem; }

  .nex-box { padding: 24px 18px; }

  .competence-item { padding: 16px; }
  .icon-box { width: 42px; height: 42px; margin-right: 14px; }

  .accordion-header { padding: 16px 0; font-size: 0.9rem; }
  .cta-box { padding: 28px 14px; }

  .intel-box { padding: 22px 16px; }
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 900px) and (orientation: landscape) {
  .hero { padding: 68px 0 40px; }
  .hero h1 { font-size: clamp(2.4rem, 8vw, 4rem); }
}

/* =====================================================
   BACK TO TOP BUTTON
===================================================== */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 48px;
  height: 48px;
  background: rgba(2, 7, 13, 0.85);
  border: 1px solid rgba(0, 212, 245, 0.35);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 0 20px rgba(0, 212, 245, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: rgba(0, 212, 245, 0.8);
  box-shadow: 0 0 28px rgba(0, 212, 245, 0.35);
  background: rgba(0, 212, 245, 0.08);
}

.btt-bracket {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--cyan);
  border-style: solid;
  opacity: 0.6;
  transition: opacity 0.3s;
}
.btt-bracket.left  { top: -1px; left: -1px;  border-width: 1px 0 0 1px; }
.btt-bracket.right { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }

.back-to-top:hover .btt-bracket { opacity: 1; }

@media (max-width: 480px) {
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}