/* ===================== SELF-HOSTED FONTS ===================== */
/* Montserrat – variable font, weights 600/700/800 */
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 600 800;
  font-display: swap;
  src: url('resources/fonts/montserrat-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 600 800;
  font-display: swap;
  src: url('resources/fonts/montserrat-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Open Sans – variable font, weights 400/600 */
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('resources/fonts/opensans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('resources/fonts/opensans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ===================== RESET & ROOT ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-primary:   #17c9e3;
  --blue-dark:      #0ea8c0;
  --blue-light:     #52d9f0;
  --blue-secondary: #7de4f5;
  --blue-wave:      #a8f0f9;
  --blue-accessible: #0071a8; /* ciemny wariant do tekstu – kontrast 5.7:1 na białym */
  --navy:           #091013;
  --navy-mid:       #030306;
  --navy-light:     #062530;
  --navy-footer:    #050d18;
  --navy-glass:     13, 27, 42;     /* do rgba() w nawigacji */
  --blue-primary-rgb: 23, 201, 227; /* do rgba() z opacity */
  --navy-card:      #0c2028;
  --white:          #ffffff;
  --gray-bg:        #f0f6fa;
  --gray-border:    #dde6ef;
  --text-dark:      #030306;
  --text-mid:       #374151;
  --text-light:     #60687a; /* pociemniony z #6b7280 → kontrast 4.8:1 na białym (WCAG AA) */
  --green:          #25dcc7;
  --green-dark:     #1cc7b2;
  --orange:         #f97316;
  --nav-h:          70px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text-dark);
  overflow-x: hidden;
  background: var(--white);
}

h1, h2, h3, h4, h5 { font-family: 'Montserrat', sans-serif; }

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

a { text-decoration: none; }

/* ===================== UTILITIES ===================== */
.container { max-width: 1180px; margin: 0 auto; padding: 0 40px; }

.section        { padding: 88px 0; }
.section-alt    { padding: 88px 0; background: var(--gray-bg); }
.section-dark   { padding: 88px 0; background: var(--navy); color: #fff; }


.tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.75;
  max-width: 620px;
}
.section-alt .section-sub { color: var(--text-mid); }

.center { text-align: center; }
.center .section-sub { margin: 0 auto; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.28s ease;
  border: none;
  letter-spacing: 0.2px;
}

.btn-primary {
  background: var(--green);
  color: var(--navy);
  box-shadow: 0 6px 24px rgba(37,220,199,0.38);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 10px 32px rgba(37,220,199,0.52); }

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.45);
}
.btn-outline:hover { background: rgba(255,255,255,0.08); border-color: #fff; }

.btn-dark {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 6px 22px rgba(0,0,0,0.18);
}
.btn-dark:hover { transform: translateY(-2px); background: var(--navy-card); }

.btn-full { width: 100%; justify-content: center; }

/* FADE-UP animation */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===================== NAVIGATION ===================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(var(--navy-glass), 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 40px;
  transition: box-shadow 0.3s;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.35); }

.nav-logo { height: 44px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue-wave); }
.nav-active { color: var(--blue-primary) !important; }

.nav-cta {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 24px;
  font-weight: 700 !important;
  font-size: 0.78rem !important;
  white-space: nowrap;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
  padding: 8px;
}
.hamburger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(var(--navy-glass), 0.98);
  padding: 24px 40px;
  z-index: 999;
}
.nav-mobile.open { display: block; }
.nav-mobile .nav-links { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }

/* ===================== HERO ===================== */
.hero {
  min-height: 100vh;
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy-light) 55%, var(--navy) 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
}

/* ---- WebGL canvas (shader w hero-worker.js, OffscreenCanvas) ---- */
#heroCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

/* Gdy shader gotowy: klasa .shader-ready dodawana przez JS */
.shader-ready #heroCanvas { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .hero-img   { animation: none; }
  #heroCanvas { display: none; }
}

.hero-waves {
  position: absolute;
  top: 45vh; left: 0;
  width: 100%; height: 55vh;
  opacity: 0.08;
  pointer-events: none;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  top: 10%; right: 8%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,150,200,0.18) 0%, transparent 68%);
  pointer-events: none;
  z-index: 1;
}

.hero > .container {
  position: relative;
  z-index: 2;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 90px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,150,200,0.18);
  border: 1px solid rgba(0,150,200,0.38);
  color: var(--blue-wave);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: 3.1rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--blue-light), var(--blue-wave));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.78;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 52px; }

.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }

.hero-stat-val {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stat-lbl {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
  margin-top: 5px;
}

.hero-img-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-img-glow {
  position: absolute;
  width: 80%; height: 80%;
  background: radial-gradient(circle, rgba(0,150,200,0.32) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-img {
  position: relative;
  width: 100%;
  max-width: 490px;
  filter: drop-shadow(0 24px 64px rgba(0,150,200,0.42));
  animation: float 6s ease-in-out infinite;
  will-change: transform;
  z-index: 1;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-16px); }
}

/* ===================== PROBLEM / SOLUTION ===================== */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 56px; }

.problem-card {
  padding: 40px;
  border-radius: 20px;
  border: 1px solid transparent;
}
.problem-card-bad {
  background: linear-gradient(135deg, #081820 0%, #030306 100%);
  border-color: rgba(239,68,68,0.12);
}
.problem-card-good {
  background: linear-gradient(135deg, #0d3a55 0%, #0a4a68 100%);
  border-color: rgba(0,150,200,0.28);
}

.problem-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.78);
  font-size: 0.92rem;
  line-height: 1.65;
}

.dot {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 0.65rem;
  font-weight: 700;
}
.dot-bad  { background: rgba(239,68,68,0.18); color: #f87171; }
.dot-good { background: rgba(37,220,199,0.18); color: var(--green); }

/* ===================== PRODUCT SPECS ===================== */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 48px;
}

.spec-card {
  background: #fff;
  border-radius: 16px;
  padding: 30px 24px;
  box-shadow: 0 3px 18px rgba(0,0,0,0.055);
  border: 1px solid var(--gray-border);
  position: relative;
  overflow: hidden;
  transition: transform 0.28s, box-shadow 0.28s;
}
.spec-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-primary), var(--blue-light));
}
.spec-card:hover { transform: translateY(-5px); box-shadow: 0 12px 38px rgba(23,201,227,0.12); }

.spec-val {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--blue-accessible);
  display: block;
  margin-bottom: 3px;
}

.spec-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 7px; }
.spec-card p  { font-size: 0.86rem; color: var(--text-light); line-height: 1.62; }

/* Gallery */
.product-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-top: 68px;
}

.product-images { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.img-main {
  grid-column: 1 / -1;
  border-radius: 16px;
  background: var(--gray-bg);
  aspect-ratio: 4/3;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.img-main img { width: 100%; height: 100%; object-fit: contain; padding: 20px; }

.img-thumb {
  border-radius: 12px;
  background: var(--gray-bg);
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}
.img-thumb:hover { opacity: 0.82; box-shadow: 0 4px 14px rgba(23,201,227,0.18); border-color: var(--blue-light); }
.img-thumb img  { width: 100%; height: 100%; object-fit: contain; padding: 10px; }

.connection-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  background: var(--navy);
  border-radius: 24px;
  padding: 40px 52px;
  margin: 56px 0;
}
.connection-strip-text { color: #fff; }
.connection-strip-text h3 { font-size: 1.35rem; font-weight: 800; margin: 10px 0 14px; line-height: 1.35; }
.connection-strip-text p  { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.75; margin-bottom: 0; }
.connection-strip-img img { width: 100%; height: auto; max-height: 480px; object-fit: contain; border-radius: 14px; display: block; }
@media (max-width: 768px) {
  .connection-strip { grid-template-columns: 1fr; padding: 32px 24px; gap: 28px; }
  .connection-strip-img { order: -1; }
}

.controller-info { }
.controller-info h3 { font-size: 1.55rem; font-weight: 800; line-height: 1.3; margin: 12px 0 14px; }
.controller-info p  { color: var(--text-light); line-height: 1.78; margin-bottom: 20px; font-size: 0.92rem; }
.controller-info ul { list-style: none; margin-bottom: 24px; }

.controller-info li {
  display: flex; gap: 10px;
  font-size: 0.89rem;
  color: var(--text-mid);
  margin-bottom: 10px;
}
.arrow { color: var(--blue-primary); font-weight: 700; }

.pdf-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-accessible);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 18px;
  background: rgba(0,150,200,0.08);
  border-radius: 10px;
  transition: background 0.2s;
  margin-right: 8px;
  margin-bottom: 8px;
}
.pdf-link:hover { background: rgba(0,150,200,0.16); }

/* ===================== AI SECTION ===================== */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.ai-features { list-style: none; margin-top: 32px; }

.ai-feature { display: flex; gap: 14px; margin-bottom: 22px; }


.ai-feature h4 { font-size: 0.94rem; font-weight: 700; margin-bottom: 4px; color: #fff; }
.ai-feature p  { font-size: 0.84rem; color: rgba(255,255,255,0.58); line-height: 1.6; }

/* Chart */
.ai-chart {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 20px;
  padding: 28px;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.chart-head span:first-child { font-family: 'Montserrat', sans-serif; font-weight: 600; font-size: 0.88rem; color: rgba(255,255,255,0.9); }
.chart-head span:last-child  { font-size: 0.72rem; color: rgba(255,255,255,0.58); }

.chart-legend { display: flex; gap: 14px; margin-bottom: 14px; }
.leg-dot { width: 10px; height: 10px; border-radius: 2px; display: inline-block; margin-right: 5px; }
.chart-legend span { font-size: 0.72rem; color: rgba(255,255,255,0.62); display: flex; align-items: center; }

.chart-bars { display: flex; align-items: flex-end; gap: 5px; height: 170px; }

.bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; height: 100%; justify-content: flex-end; }
.bar { width: 100%; border-radius: 5px 5px 0 0; }
.bar-green  { background: linear-gradient(180deg, var(--green), var(--green-dark)); }
.bar-blue   { background: linear-gradient(180deg, var(--blue-light), var(--blue-primary)); }
.bar-orange { background: linear-gradient(180deg, var(--orange), #ea580c); }
.bar-lbl { display: flex; flex-direction: column; align-items: center; font-size: 0.72rem; line-height: 1.25; color: rgba(255,255,255,0.75); text-align: center; }

.chart-note {
  margin-top: 18px;
  padding: 14px 16px;
  background: rgba(0,212,170,0.08);
  border: 1px solid rgba(0,212,170,0.18);
  border-radius: 10px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.55;
}
.chart-note strong { color: var(--green); }

.ai-kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}
.ai-kpi {
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}
.ai-kpi-val {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.55rem;
  font-weight: 800;
  color: #fff;
}
.ai-kpi-lbl { font-size: 0.75rem; color: rgba(255,255,255,0.62); margin-top: 3px; }

/* YMYL footnote – cytowanie twierdzeń finansowych */
.ymyl-note {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.42);
  margin-top: 16px;
  line-height: 1.55;
}
.ymyl-note a {
  color: rgba(255,255,255,0.55);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color .2s;
}
.ymyl-note a:hover { color: var(--blue-primary); }

/* ===================== CALCULATOR ===================== */
.calc-wrap {
  background: #fff;
  border-radius: 24px;
  padding: 48px;
  box-shadow: 0 14px 56px rgba(0,0,0,0.07);
  max-width: 880px;
  margin: 48px auto 0;
}

.calc-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.calc-row { display: flex; align-items: center; gap: 18px; margin-bottom: 40px; }

.calc-range {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--gray-border);
  border-radius: 3px;
  outline: none;
}
.calc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  cursor: pointer;
  box-shadow: 0 3px 12px rgba(0,150,200,0.38);
}
.calc-range::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  cursor: pointer;
  border: none;
  box-shadow: 0 3px 12px rgba(0,150,200,0.38);
}

.calc-num {
  width: 110px;
  padding: 10px 14px;
  border: 2px solid var(--gray-border);
  border-radius: 12px;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--blue-accessible);
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}
.calc-num:focus { border-color: var(--blue-primary); }

.calc-sfx { font-family: 'Montserrat', sans-serif; font-weight: 600; color: var(--text-light); font-size: 0.9rem; }

.calc-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 12px; }

.calc-card {
  border: 2px solid var(--gray-border);
  border-radius: 16px;
  padding: 24px 18px;
  text-align: center;
  transition: border-color 0.3s, background 0.3s;
}
.calc-card.highlighted {
  border-color: var(--blue-primary);
  background: linear-gradient(135deg, rgba(23,201,227,0.04), rgba(82,217,240,0.04));
}

.ccard-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue-accessible);
  margin-bottom: 3px;
}
.ccard-cap  { font-size: 0.78rem; color: var(--text-light); margin-bottom: 14px; }
.ccard-val  { font-family: 'Montserrat', sans-serif; font-size: 2rem; font-weight: 800; color: var(--text-dark); line-height: 1; }
.ccard-unit { font-size: 0.78rem; color: var(--text-light); margin-top: 4px; }
.ccard-save {
  margin-top: 12px; padding-top: 12px;
  border-top: 1px solid var(--gray-border);
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem; font-weight: 700;
  color: var(--green);
}
.ccard-save-lbl { font-family: 'Open Sans', sans-serif; font-size: 0.75rem; color: var(--text-light); font-weight: 400; display: block; margin-top: 2px; }
.ccard-roi {
  margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--gray-border);
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem; font-weight: 800;
  color: var(--green);
}
.ccard-roi-lbl { font-family: 'Open Sans', sans-serif; font-size: 0.75rem; color: var(--text-light); font-weight: 400; display: block; margin-top: 2px; }

.calc-disclaimer { font-size: 0.76rem; color: var(--text-light); text-align: center; margin-bottom: 28px; }

.calc-mode-wrap { margin-bottom: 32px; }

.calc-select {
  width: 100%;
  padding: 12px 18px;
  border: 2px solid var(--gray-border);
  border-radius: 12px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-dark);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2317c9e3' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 16px center;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.calc-select:focus,
.calc-select:hover { border-color: var(--blue-primary); box-shadow: 0 0 0 3px rgba(23,201,227,0.1); }

/* ===================== PRICING ===================== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }

.pricing-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px 26px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.055);
  border: 2px solid var(--gray-border);
  position: relative;
  transition: transform 0.28s, box-shadow 0.28s;
}
.pricing-card:hover { transform: translateY(-5px); box-shadow: 0 14px 44px rgba(0,0,0,0.1); }

.pricing-card.featured {
  border-color: var(--blue-primary);
  background: linear-gradient(160deg, #f0f9ff 0%, #e0f2fe 100%);
  transform: scale(1.03);
  box-shadow: 0 14px 50px rgba(23,201,227,0.2);
}
.pricing-card.featured:hover { transform: translateY(-5px) scale(1.03); }

.pricing-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: #fff;
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-name { font-family: 'Montserrat', sans-serif; font-size: 0.82rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--blue-accessible); margin-bottom: 5px; }
.pricing-desc { font-size: 0.84rem; color: var(--text-light); line-height: 1.55; margin-bottom: 18px; }
.pricing-cap  { font-family: 'Montserrat', sans-serif; font-size: 2.3rem; font-weight: 800; color: var(--text-dark); line-height: 1; }
.pricing-cap small { font-size: 0.95rem; font-weight: 600; color: var(--text-light); }
.pricing-price { font-family: 'Montserrat', sans-serif; font-size: 2rem; font-weight: 800; color: var(--blue-accessible); margin: 14px 0 4px; }
.pricing-install-note { font-size: 0.75rem; color: var(--green); font-weight: 700; font-family: 'Montserrat', sans-serif; margin-bottom: 16px; display: none; }

.install-toggle {
  display: inline-flex;
  border: 2px solid var(--gray-border);
  border-radius: 50px;
  overflow: hidden;
  margin: 0 auto 44px;
}
.install-toggle-btn {
  padding: 10px 22px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-light);
  transition: background 0.22s, color 0.22s;
  white-space: nowrap;
}
.install-toggle-btn.active { background: var(--navy); color: #fff; border-radius: 50px; }
.pricing-price small { font-size: 0.88rem; font-weight: 600; }

.pricing-feats { list-style: none; margin-bottom: 26px; }
.pricing-feats li { display: flex; align-items: center; gap: 9px; font-size: 0.86rem; color: var(--text-mid); margin-bottom: 9px; }
.chk { width: 18px; height: 18px; background: rgba(23,201,227,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.62rem; color: var(--blue-primary); flex-shrink: 0; }

/* ===================== INSTALLATION ===================== */
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 48px; }

.install-card {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  border: 2px solid var(--gray-border);
  transition: border-color 0.28s, box-shadow 0.28s;
}
.install-card:hover { border-color: var(--blue-light); box-shadow: 0 8px 28px rgba(23,201,227,0.1); }

.install-card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 12px; }
.install-card p  { font-size: 0.9rem; color: var(--text-light); line-height: 1.72; margin-bottom: 20px; }
.install-card .links { display: flex; flex-wrap: wrap; gap: 8px; }

/* Certs */
.certs-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-top: 52px;
}

.cert-item { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.cert-box {
  width: 90px; height: 72px;
  background: #fff;
  border: 2px solid var(--gray-border);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  padding: 10px 12px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.055);
}
.cert-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.cert-lbl { font-family: 'Montserrat', sans-serif; font-size: 0.7rem; font-weight: 700; color: var(--text-light); letter-spacing: 1px; }

/* ===================== FAQ ===================== */
.faq-list { max-width: 780px; margin: 48px auto 0; }

.faq-item {
  background: #fff;
  border: 1px solid var(--gray-border);
  border-radius: 14px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow 0.22s, border-color 0.22s;
}
.faq-item.open { border-color: var(--blue-light); box-shadow: 0 4px 18px rgba(23,201,227,0.1); }

.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.42;
}

.faq-arrow {
  flex-shrink: 0;
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.65rem;
  transition: transform 0.3s;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s ease;
}
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.78;
}

/* ===================== TESTIMONIALS ===================== */
.tcarousel-row { display: flex; align-items: center; gap: 12px; }
.tcarousel-wrap { flex: 1; overflow: hidden; }
.tcarousel-track { display: flex; gap: 24px; will-change: transform; align-items: stretch; }

.tcarousel-btn {
  flex: 0 0 44px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(23,201,227,0.1);
  border: 1px solid rgba(23,201,227,0.28);
  color: var(--blue-primary);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.22s, border-color 0.22s;
  user-select: none;
}
.tcarousel-btn:hover { background: rgba(23,201,227,0.25); border-color: rgba(23,201,227,0.6); }

.tcarousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: 28px; }
.tdot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.22s, transform 0.22s;
}
.tdot.active { background: var(--blue-primary); transform: scale(1.4); }

.tcard {
  flex: 0 0 313.333px;
  width: 313.333px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(23,201,227,0.15);
  border-radius: 16px;
  padding: 20px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-sizing: border-box;
  min-height: 280px;
  transition: border-color 0.25s;
}
.tcard:hover { border-color: rgba(23,201,227,0.45); }

.tcard-text {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.76;
  flex: 1;
  font-style: italic;
  padding-top: 60px;
  position: relative;
}
.tcard-text::before {
  content: '\201E';
  color: var(--blue-primary);
  font-size: 2.8rem;
  font-style: normal;
  line-height: 1;
  position: absolute;
  top: 0;
  left: 0;
}

.tcard-author {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  color: #fff;
}
.tcard-city {
  font-size: 0.78rem;
  color: var(--blue-secondary);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 3px;
}

/* ===================== CONTACT FORM ===================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 56px;
  align-items: start;
}

.contact-details {
  list-style: none;
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 42px; height: 42px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

.contact-detail-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 3px;
}

.contact-details a,
.contact-details span {
  font-size: 0.94rem;
  color: var(--text-dark);
  font-weight: 600;
}
.contact-details a:hover { color: var(--blue-primary); }

.contact-form-wrap {
  background: #fff;
  border-radius: 20px;
  padding: 44px 40px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.07);
  border: 1px solid var(--gray-border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 0;
}

.form-group:not(.form-row .form-group) { margin-bottom: 18px; }

.form-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-optional {
  font-weight: 400;
  color: var(--text-light);
}

.form-input {
  padding: 12px 16px;
  border: 2px solid var(--gray-border);
  border-radius: 12px;
  font-family: 'Open Sans', sans-serif;
  font-size: 0.9rem;
  color: var(--text-dark);
  background: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-input:focus {
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(23,201,227,0.12);
}
.form-input::placeholder { color: var(--text-light); }

.form-select {
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2317c9e3' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.65;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.form-rodo {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.55;
  max-width: 340px;
}

.form-success {
  display: none;
  margin-top: 18px;
  padding: 16px 20px;
  background: rgba(37,220,199,0.1);
  border: 1px solid rgba(37,220,199,0.3);
  border-radius: 12px;
  color: var(--green-dark);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
}

@media (max-width: 992px) {
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 28px 20px; }
  .form-footer { flex-direction: column; align-items: stretch; }
  .form-footer .btn { text-align: center; justify-content: center; }
}

/* ===================== FOOTER ===================== */
.footer { background: var(--navy-footer); color: rgba(255,255,255,0.6); padding: 64px 0 30px; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo { height: 48px; width: auto; filter: brightness(1.1); margin-bottom: 16px; }
.footer-desc { font-size: 0.86rem; line-height: 1.72; max-width: 270px; }

.footer-head { font-family: 'Montserrat', sans-serif; font-size: 0.76rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: #fff; margin-bottom: 18px; }

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.52); font-size: 0.86rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--blue-wave); }

/* .socials i .soc – tymczasowo ukryte (social media TBD) */
.socials { display: none; }

/* Logo PayNow w stopce */
.footer-payment-badge {
  margin-top: 20px;
}
.footer-payment-label {
  font-size: 0.72rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: rgba(255,255,255,0.35);
  margin-bottom: 8px;
}
.footer-paynow-logo {
  display: block;
  height: 28px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.2s;
  filter: brightness(0) invert(1);
}

.footer-company-data {
  font-size: 0.74rem !important;
  line-height: 1.8;
}

.footer-brands {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-wrap: wrap;
}
.footer-brands-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  white-space: nowrap;
}
.footer-brand-link {
  display: inline-flex;
  align-items: center;
}
.footer-brand-link img {
  height: 28px;
  width: auto;
  opacity: 0.55;
  filter: brightness(1.4);
  transition: opacity 0.2s;
}
.footer-brand-link:hover img,
.footer-brand-link:focus-visible img {
  opacity: 1;
}

.footer-payment-methods {
  padding: 20px 0 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.footer-payment-methods-img {
  display: block;
  min-width: 600px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 10px 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

.footer-slogan { font-family: 'Montserrat', sans-serif; font-weight: 700; color: var(--blue-wave); }

/* ===================== FOCUS VISIBLE (accessibility) ===================== */
.faq-q:focus-visible,
.tcarousel-btn:focus-visible,
.hamburger:focus-visible,
.img-thumb:focus-visible,
.tdot:focus-visible,
.install-toggle-btn:focus-visible,
.btn:focus-visible,
.pdf-link:focus-visible,
.nav-links a:focus-visible,
.calc-range:focus-visible,
.calc-num:focus-visible,
.faq-q:focus-visible,
.hamburger:focus-visible,
.tcarousel-btn:focus-visible {
  outline: 2px solid var(--blue-primary);
  outline-offset: 3px;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 992px) {
  .hero-inner, .product-showcase, .ai-grid, .problem-grid, .install-grid { grid-template-columns: 1fr; }
  .hero-img-wrap { order: -1; }
  .hero-img { max-width: 300px; margin: 0 auto; }
  .hero-waves { top: 15vh; height: 85vh; opacity: 0.13; }
  .specs-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
  .pricing-card.featured { transform: scale(1); }
  .calc-results { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .section, .section-alt, .section-dark { padding: 64px 0; }
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .container { padding: 0 20px; }
  .hero h1 { font-size: 2.1rem; }
  .hero-inner { padding: 40px 0 48px; }
  .section-title { font-size: 1.82rem; }
  .calc-wrap { padding: 28px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
  .hero-stats { gap: 20px; }

  /* AI chart – horizontal (bar grows right) layout on mobile */
  .ai-grid > div { min-width: 0; }
  .chart-bars {
    flex-direction: column;
    height: auto;
    gap: 5px;
  }
  .bar-wrap {
    flex: none;              /* reset desktop flex:1 so height:22px is definite */
    flex-direction: row;
    height: 22px;
    gap: 8px;
    align-items: stretch;   /* bar fills full 22px height */
    width: 100%;
    justify-content: flex-start;
  }
  .bar-wrap .bar {
    height: auto !important; /* let align-items:stretch control height */
    width: var(--bw) !important;
    border-radius: 0 5px 5px 0;
    flex-shrink: 0;
    flex-grow: 0;
  }
  .bar-lbl {
    order: -1;
    min-width: 34px;
    flex-shrink: 0;
    text-align: right;
    white-space: nowrap;
    font-size: 0.72rem;
    display: flex;
    flex-direction: row;   /* jedna linia poziomo na mobile */
    align-items: center;
  }

  /* Testimonials – hide nav buttons, wrap gets full width */
  .tcarousel-btn { display: none; }
}

@media (max-width: 540px) {
  .specs-grid { grid-template-columns: 1fr; }
}

/* ==============================================
   HOMEPAGE – BAZA WIEDZY PREVIEW
   (sekcja #baza – 6 kart najnowszych artykułów)
=============================================== */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.preview-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.preview-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(23, 201, 227, .1);
  border-color: var(--blue-primary);
}
.preview-card:focus-visible {
  outline: 2px solid var(--blue-accessible);
  outline-offset: 3px;
}
.preview-date {
  font-size: .75rem;
  color: var(--text-light);
  font-family: 'Montserrat', sans-serif;
}
.preview-title {
  font-family: 'Montserrat', sans-serif;
  font-size: .97rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
  margin: 0;
}
.preview-excerpt {
  font-size: .87rem;
  color: var(--text-mid);
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.preview-cta {
  font-family: 'Montserrat', sans-serif;
  font-size: .82rem;
  font-weight: 700;
  color: var(--blue-accessible);
  margin-top: 4px;
}

/* ==============================================
   ARTYKUŁ – POWIĄZANE ARTYKUŁY
   (sekcja .related-section poniżej CTA)
=============================================== */
.related-section {
  margin-top: 52px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,.06);
}
.related-title {
  font-family: 'Montserrat', sans-serif;
  font-size: .78rem;
  font-weight: 700;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 20px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.related-card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  transition: background .2s, border-color .2s;
}
.related-card:hover {
  background: rgba(23,201,227,.07);
  border-color: rgba(23,201,227,.25);
}
.related-card:focus-visible {
  outline: 2px solid var(--blue-primary);
  outline-offset: 2px;
}
.related-card-date {
  font-size: .72rem;
  color: rgba(255,255,255,.52);
  font-family: 'Montserrat', sans-serif;
}
.related-card-title {
  font-family: 'Montserrat', sans-serif;
  font-size: .88rem;
  font-weight: 700;
  color: rgba(255,255,255,.82);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.related-card-cta {
  font-size: .78rem;
  color: var(--blue-primary);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  margin-top: auto;
  padding-top: 4px;
}

@media (max-width: 992px) {
  .preview-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .preview-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Kod rabatowy – order.html
   ============================================================ */
.summary-line--discount {
  color: var(--green);
  font-weight: 600;
}
.summary-line--discount span:last-child {
  font-weight: 700;
}

.discount-wrap {
  margin: 10px 0 2px;
}
.discount-fields {
  display: flex;
  gap: 8px;
}
.discount-input {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  outline: none;
  transition: border-color .2s;
}
.discount-input::placeholder {
  color: rgba(255,255,255,0.3);
  text-transform: none;
  font-weight: 400;
  letter-spacing: 0;
}
.discount-input:focus {
  border-color: var(--blue-primary);
  background: rgba(23,201,227,0.06);
  box-shadow: 0 0 0 3px rgba(23,201,227,0.15);
}
#discountApplyBtn:focus-visible {
  outline: 2px solid var(--blue-primary);
  outline-offset: 2px;
}
.discount-input:read-only {
  opacity: .75;
  cursor: default;
}
#discountApplyBtn {
  padding: 9px 16px;
  border: 1.5px solid var(--blue-primary);
  border-radius: 8px;
  background: transparent;
  color: var(--blue-primary);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s, color .2s;
}
#discountApplyBtn:hover:not(:disabled) {
  background: var(--blue-primary);
  color: var(--navy);
}
#discountApplyBtn:disabled {
  opacity: .5;
  cursor: default;
}
.discount-msg {
  font-size: 0.8rem;
  min-height: 18px;
  margin-top: 5px;
  font-family: 'Open Sans', sans-serif;
}
.discount-msg.ok  { color: var(--green); }
.discount-msg.err { color: #f87171; }

@media (max-width: 360px) {
  .discount-fields { flex-direction: column; }
  #discountApplyBtn { width: 100%; }
}