/* ============================================
   Nexa Digital Studio — Premium Styles
   ============================================ */

:root {
  --color-bg: #040810;
  --color-bg-alt: #080e1a;
  --color-surface: rgba(255, 255, 255, 0.03);
  --color-surface-solid: #0a1222;
  --color-surface-hover: rgba(255, 255, 255, 0.06);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.12);
  --color-border-accent: rgba(0, 180, 255, 0.4);

  --color-text: #e8edf5;
  --color-text-muted: #8b9cb5;
  --color-text-dim: #5a6a82;

  --color-accent: #00b4ff;
  --color-accent-bright: #5cd4ff;
  --color-accent-dark: #0088cc;
  --color-accent-deep: #0066aa;
  --color-accent-glow: rgba(0, 180, 255, 0.2);
  --color-accent-subtle: rgba(0, 180, 255, 0.08);

  --color-silver: #c8d4e8;
  --color-white: #ffffff;

  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 28px;
  --radius-pill: 100px;

  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 60px rgba(56, 189, 248, 0.14);
  --shadow-glow-strong: 0 0 80px rgba(56, 189, 248, 0.22);

  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-strong: rgba(255, 255, 255, 0.07);
  --glass-blur: blur(20px);

  --header-height: 76px;
  --container-max: 1180px;
  --section-pad: clamp(5rem, 10vw, 8.5rem);
  --gap-section: clamp(3rem, 5vw, 4.5rem);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.lang-zh {
  font-family: 'Noto Sans SC', var(--font);
}

/* Logo */
.logo-img {
  display: block;
  width: auto;
  object-fit: contain;
}

.logo-img--nav {
  height: 48px;
  width: auto;
  max-width: min(200px, 46vw);
}

.logo-img--footer {
  height: 56px;
  width: auto;
  max-width: 240px;
  margin-bottom: 0.25rem;
}

/* Language switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lang-switch__btn {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.lang-switch__btn:hover {
  color: var(--color-white);
}

.lang-switch__btn.active {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent-bright), var(--color-accent-dark));
  box-shadow: 0 0 16px rgba(0, 180, 255, 0.25);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
}

.nav__lang-mobile {
  display: none;
}

.lang-switch--mobile {
  margin: 0.5rem 0;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Noise overlay */
.noise {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: 720px;
}

.text-accent {
  color: var(--color-accent);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent-bright) 0%, var(--color-accent) 50%, #00e5cc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

/* Buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  line-height: 1;
  padding: 0.8125rem 1.625rem;
  border-radius: var(--radius-pill);
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
}

.btn--sm {
  font-size: 0.8125rem;
  padding: 0.625rem 1.25rem;
}

.btn--lg {
  font-size: 1rem;
  padding: 1rem 2rem;
}

.btn--xl {
  font-size: 1.0625rem;
  padding: 1.125rem 2.25rem;
}

.btn--block {
  width: 100%;
}

.btn--primary {
  color: var(--color-white);
  background: linear-gradient(135deg, #33c4ff 0%, var(--color-accent) 45%, var(--color-accent-dark) 100%);
  border: 1px solid rgba(0, 180, 255, 0.35);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 4px 24px rgba(0, 180, 255, 0.35),
    0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    0 8px 36px rgba(56, 189, 248, 0.42),
    0 2px 4px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn--primary:hover::before {
  opacity: 1;
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  color: var(--color-silver);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-light);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.btn--outline:hover {
  color: var(--color-white);
  border-color: var(--color-border-accent);
  background: var(--color-accent-subtle);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 0 24px rgba(56, 189, 248, 0.1);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent-bright);
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.75rem;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.08);
}

.badge__dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* Section */
.section {
  padding: var(--section-pad) 0;
  position: relative;
}

.section--alt {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(56, 189, 248, 0.05), transparent 60%),
    var(--color-bg-alt);
}

.section--alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.section__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--gap-section);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section__label::before,
.section__label::after {
  content: '';
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent));
}

.section__label::after {
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.section__title {
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-white);
  margin-bottom: 1.125rem;
}

.section__desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  letter-spacing: -0.01em;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal--delay { transition-delay: 0.12s; }
.reveal--delay-2 { transition-delay: 0.24s; }
.reveal--delay-3 { transition-delay: 0.36s; }

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

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(3, 5, 8, 0.75);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  z-index: 1001;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav__links a:not(.btn) {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: -0.01em;
  transition: color var(--transition);
  position: relative;
}

.nav__links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav__links a:not(.btn):hover {
  color: var(--color-white);
}

.nav__links a:not(.btn):hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav__toggle:hover {
  background: var(--glass-bg);
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

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

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

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

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 10%, transparent 75%);
}

.hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 45% at 75% 25%, rgba(56, 189, 248, 0.09), transparent 55%),
    radial-gradient(ellipse 50% 40% at 15% 75%, rgba(2, 132, 199, 0.07), transparent 50%);
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
}

.hero__glow--1 {
  width: 600px;
  height: 600px;
  background: rgba(14, 116, 200, 0.14);
  top: -15%;
  right: -8%;
}

.hero__glow--2 {
  width: 450px;
  height: 450px;
  background: rgba(56, 189, 248, 0.1);
  bottom: 5%;
  left: -12%;
}

.hero__glow--3 {
  width: 300px;
  height: 300px;
  background: rgba(125, 211, 252, 0.06);
  top: 40%;
  left: 40%;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
  padding-top: clamp(2rem, 4vw, 4rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  position: relative;
}

.hero__title {
  font-size: clamp(2.375rem, 5.8vw, 3.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 540px;
  margin-bottom: 2.25rem;
  letter-spacing: -0.015em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.75rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 8px 32px rgba(0, 0, 0, 0.25);
}

.hero__stat {
  text-align: center;
  padding: 0.5rem 0.75rem;
  position: relative;
}

.hero__stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, transparent, var(--color-border-light), transparent);
}

.hero__stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.hero__stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-dim);
  margin-top: 0.25rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero__trust {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  letter-spacing: 0.01em;
}

/* Hero Mockup */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.mockup {
  position: relative;
  width: 100%;
  max-width: 540px;
}

.mockup__ring {
  position: absolute;
  inset: -12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 65%);
  animation: ringPulse 6s ease-in-out infinite;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.03); }
}

.mockup__laptop {
  position: relative;
  z-index: 1;
}

.mockup__screen {
  background: linear-gradient(145deg, #141c2e 0%, #0d1320 100%);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  overflow: hidden;
  box-shadow:
    var(--shadow-lg),
    var(--shadow-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.mockup__browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--color-border);
}

.mockup__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.mockup__dot--red { background: #ff5f57; }
.mockup__dot--yellow { background: #febc2e; }
.mockup__dot--green { background: #28c840; }

.mockup__url {
  flex: 1;
  text-align: center;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-dim);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-left: 10px;
  border: 1px solid var(--color-border);
}

.mockup__page {
  padding: 24px;
  background: linear-gradient(180deg, #0a0f1a 0%, #0d1320 100%);
  min-height: 260px;
}

.mockup__nav-bar {
  height: 8px;
  width: 38%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  margin-bottom: 28px;
}

.mockup__hero-block {
  margin-bottom: 28px;
}

.mockup__line {
  height: 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 10px;
}

.mockup__line--title {
  width: 72%;
  height: 16px;
  background: linear-gradient(90deg, var(--color-accent), rgba(56, 189, 248, 0.25));
  border-radius: 6px;
}

.mockup__line--sub {
  width: 52%;
}

.mockup__cta-btn {
  width: 110px;
  height: 30px;
  background: linear-gradient(135deg, var(--color-accent-bright), var(--color-accent-dark));
  border-radius: var(--radius-pill);
  margin-top: 14px;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.3);
}

.mockup__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.mockup__card {
  height: 64px;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.mockup__base {
  height: 16px;
  background: linear-gradient(180deg, #1a2438, #0a0f18);
  border-radius: 0 0 14px 14px;
  margin: 0 7%;
  border: 1px solid var(--color-border);
  border-top: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.mockup__float {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.125rem;
  box-shadow: var(--shadow-md);
  animation: float 5s ease-in-out infinite;
}

.mockup__float--stats {
  top: 12%;
  left: -6%;
}

.mockup__float--leads {
  bottom: 18%;
  right: -6%;
  animation-delay: -2.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.mockup__float-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.mockup__float-icon--green {
  background: rgba(40, 200, 64, 0.1);
  border-color: rgba(40, 200, 64, 0.25);
  color: #34d399;
}

.mockup__float-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mockup__float-value {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

/* ============================================
   Problem
   ============================================ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(248, 113, 113, 0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.problem-card:hover {
  border-color: rgba(248, 113, 113, 0.2);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  background: var(--color-surface-hover);
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.15);
  border-radius: var(--radius-md);
  color: #f87171;
  margin-bottom: 1.5rem;
}

.problem-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   Solution
   ============================================ */
.solution-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(3rem, 6vw, 5.5rem);
  align-items: start;
}

.solution__content .section__title {
  text-align: left;
}

.solution__content .section__desc {
  text-align: left;
  margin-bottom: 2.25rem;
}

.solution__features {
  display: grid;
  gap: 0.875rem;
}

.solution-feature {
  display: flex;
  gap: 1.125rem;
  padding: 1.375rem 1.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.solution-feature:hover {
  border-color: var(--color-border-accent);
  background: var(--color-accent-subtle);
  transform: translateX(4px);
}

.solution-feature__check {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(56, 189, 248, 0.05));
  border: 1px solid var(--color-border-accent);
  border-radius: 50%;
  color: var(--color-accent);
  margin-top: 2px;
}

.solution-feature h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-white);
  margin-bottom: 0.3rem;
}

.solution-feature p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Services
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.service-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.service-card:hover::after {
  opacity: 1;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-subtle), transparent);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  transition: all var(--transition);
}

.service-card:hover .service-card__icon {
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.15);
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   Why Choose Us
   ============================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-item {
  padding: 2.25rem 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.why-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.why-item:hover {
  border-color: var(--color-border-accent);
  background: var(--color-accent-subtle);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.why-item:hover::before {
  opacity: 1;
}

.why-item__number {
  display: block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
  opacity: 0.8;
}

.why-item h3 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.625rem;
}

.why-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   Process
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.process-step {
  text-align: center;
  padding: 2.5rem 1.75rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
}

.process-step:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.process-step__number {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-accent-bright);
  background: linear-gradient(135deg, var(--color-accent-subtle), transparent);
  border: 1px solid var(--color-border-accent);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);
}

.process-step h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   Portfolio
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.portfolio-card {
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.portfolio-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.portfolio-card__preview {
  padding: 1.25rem;
  min-height: 220px;
  position: relative;
}

.portfolio-card__preview--restaurant {
  background: linear-gradient(135deg, #1a1520 0%, #0c1424 100%);
}

.portfolio-card__preview--service {
  background: linear-gradient(135deg, #0c1620 0%, #0a1220 100%);
}

.portfolio-card__preview--sales {
  background: linear-gradient(135deg, #0e1424 0%, #0a1020 100%);
}

.portfolio-card__preview--agency {
  background: linear-gradient(135deg, #0a0e20 0%, #120e28 100%);
}

.portfolio-card__browser {
  display: flex;
  gap: 5px;
  margin-bottom: 14px;
}

.portfolio-card__browser span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.portfolio-card__mock {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  min-height: 150px;
}

.portfolio-card__mock-hero {
  height: 44px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 6px;
  opacity: 0.35;
  margin-bottom: 14px;
}

.portfolio-card__mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.portfolio-card__mock-grid div {
  height: 52px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.portfolio-card__preview--service .portfolio-card__mock-grid {
  grid-template-columns: repeat(2, 1fr);
}

.portfolio-card__preview--agency .portfolio-card__mock-grid {
  grid-template-columns: repeat(4, 1fr);
}

.portfolio-card__mock-cta {
  height: 26px;
  width: 88px;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  opacity: 0.45;
  margin-top: 18px;
}

.portfolio-card__info {
  padding: 1.75rem 2rem;
  border-top: 1px solid var(--color-border);
}

.portfolio-card__tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.875rem;
}

.portfolio-card__info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.portfolio-card__info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   Pricing
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.pricing-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.pricing-card--featured {
  border-color: var(--color-border-accent);
  background:
    linear-gradient(180deg, rgba(56, 189, 248, 0.08) 0%, var(--glass-bg) 35%);
  box-shadow: var(--shadow-glow-strong);
  transform: scale(1.02);
}

.pricing-card--featured:hover {
  transform: scale(1.02) translateY(-6px);
  box-shadow: var(--shadow-md), var(--shadow-glow-strong);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent-bright), var(--color-accent-dark));
  padding: 0.4375rem 1.125rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
}

.pricing-card__header {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__header h3 {
  font-size: 1.3125rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 0.625rem;
}

.pricing-card__header p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.pricing-card__features {
  margin-bottom: 2.25rem;
}

.pricing-card__features li {
  position: relative;
  padding-left: 1.625rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.875rem;
  line-height: 1.5;
}

.pricing-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item[open] {
  border-color: var(--color-border-accent);
  background: var(--color-accent-subtle);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.06);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.375rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-white);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.375rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border-radius: 50%;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  color: var(--color-accent-bright);
}

.faq-item p {
  padding: 0 1.75rem 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* ============================================
   Mid CTA
   ============================================ */
.section--cta-inline {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.cta-inline {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
  padding: clamp(2.5rem, 5vw, 3.5rem);
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.06) 0%, transparent 50%),
    var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.cta-inline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.cta-inline__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-white);
  line-height: 1.25;
  margin: 0.75rem 0 1rem;
}

.cta-inline__desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.cta-inline__action {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
}

.cta-inline__trust {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cta-inline__trust li {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  padding-left: 1.25rem;
  position: relative;
}

.cta-inline__trust li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ============================================
   Final CTA
   ============================================ */
.cta-section {
  padding-bottom: var(--section-pad);
}

.cta-box {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-accent);
}

.cta-box__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(56, 189, 248, 0.12), transparent 55%),
    linear-gradient(180deg, #0a1220 0%, #060a12 100%);
}

.cta-box__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.cta-box__inner {
  position: relative;
  padding: clamp(3rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem);
}

.cta-box__header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 2.5rem;
}

.cta-box__header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.035em;
  line-height: 1.2;
  margin: 0.75rem 0 1rem;
}

.cta-box__header p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.cta-box__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.875rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
}

.cta-badge svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Simple homepage CTA (no form) */
.cta-box--simple .cta-box__inner--simple {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-box--simple .cta-box__inner--simple h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.035em;
  line-height: 1.2;
  margin: 0.75rem 0 1rem;
}

.cta-box--simple .cta-box__inner--simple p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.cta-box--simple .cta-box__badges {
  margin-top: 2.25rem;
}

/* ============================================
   Quote Page
   ============================================ */
.quote-page main {
  padding-top: calc(var(--header-height) + 2rem);
}

.quote-hero {
  padding-bottom: var(--section-pad);
}

.quote-hero__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.quote-hero__header h1 {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 0.75rem 0 1rem;
}

.quote-hero__header p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.quote-layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

.quote-trust {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  padding: clamp(1.5rem, 3vw, 2rem);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.quote-trust__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.quote-trust__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.quote-trust__item {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.quote-trust__icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  color: var(--color-accent);
}

.quote-trust__item strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.25rem;
}

.quote-trust__item p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0;
}

.quote-form-wrap {
  min-width: 0;
}

.lead-form--quote {
  max-width: none;
  margin: 0;
}

.lead-form--quick {
  padding: 1.75rem 1.5rem 1.5rem;
}

.quick-form__header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.quick-form__header h1 {
  font-size: clamp(1.375rem, 4vw, 1.625rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.quick-form__header p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.quick-form__fields {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.quick-form__optional {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 0.25rem;
}

.form-field__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.625rem;
  color: var(--color-text);
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.option-btn {
  appearance: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.35;
  padding: 0.75rem 0.875rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.option-btn:hover {
  border-color: rgba(56, 189, 248, 0.45);
  background: rgba(56, 189, 248, 0.06);
}

.option-btn.is-selected {
  border-color: var(--color-accent);
  background: rgba(56, 189, 248, 0.12);
  color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.25);
}

#needField.is-invalid .option-btn {
  border-color: rgba(248, 113, 113, 0.45);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 480px) {
  .option-grid {
    grid-template-columns: 1fr;
  }

  .lead-form--quick {
    padding: 1.5rem 1.125rem 1.25rem;
  }
}

.lead-form__intro {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
  line-height: 1.5;
}

.lead-form__section {
  border: none;
  margin: 0 0 1.75rem;
  padding: 0;
}

.lead-form__section legend {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 1rem;
  padding: 0;
}

.form-optional {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-dim);
}

.form-field__hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: -0.25rem 0 0.5rem;
  line-height: 1.45;
}

.form-field--whatsapp input {
  font-size: 1.0625rem;
  padding: 1rem 1.125rem;
  border-color: rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.06);
}

.form-field--whatsapp input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.lead-form__optional {
  margin-top: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.02);
}

.lead-form__optional summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  list-style: none;
  user-select: none;
  transition: color 0.2s ease;
}

.lead-form__optional summary::-webkit-details-marker {
  display: none;
}

.lead-form__optional summary::before {
  content: '+';
  display: inline-block;
  width: 1.25rem;
  margin-right: 0.5rem;
  color: var(--color-accent);
  font-weight: 600;
}

.lead-form__optional[open] summary::before {
  content: '−';
}

.lead-form__optional summary:hover {
  color: var(--color-white);
}

.lead-form__optional .lead-form__grid {
  padding: 0 1.25rem 1.25rem;
  margin-top: 0;
}

.lead-form__grid--optional {
  gap: 1rem 1.25rem;
}

.form-success h2 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.4;
  margin: 0 0 1.5rem;
  text-align: center;
}

@media (max-width: 900px) {
  .quote-layout {
    grid-template-columns: 1fr;
  }

  .quote-trust {
    position: static;
  }

  .quote-trust__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

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

/* ============================================
   Lead Form
   ============================================ */
.lead-form {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(1.75rem, 4vw, 2.5rem);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 16px 48px rgba(0, 0, 0, 0.3);
}

.lead-form__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 1.5rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-silver);
  letter-spacing: 0.01em;
}

.form-required {
  color: var(--color-accent);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 0.9375rem;
  color: var(--color-white);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.8125rem 1rem;
  transition: all var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238b9cb5' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-field select option {
  background: #0d1320;
  color: var(--color-white);
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-text-dim);
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: var(--color-border-light);
  background: rgba(0, 0, 0, 0.45);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-border-accent);
  background: rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: rgba(248, 113, 113, 0.5);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.1);
}

.form-field__error {
  font-size: 0.75rem;
  font-weight: 500;
  color: #f87171;
  min-height: 1rem;
  line-height: 1.3;
}

.lead-form__footer {
  margin-top: 1.75rem;
  text-align: center;
}

.lead-form__footer .btn {
  width: 100%;
  max-width: 320px;
}

.lead-form__footer .btn.is-loading .btn__text {
  display: none;
}

.lead-form__footer .btn.is-loading .btn__loader {
  display: inline-flex;
}

.btn__loader {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.btn__spinner {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.lead-form__note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-dim);
}

.lead-form__whatsapp-link {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.lead-form__whatsapp-link:hover {
  color: var(--color-accent-bright);
}

/* Form alerts */
.form-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  max-width: 760px;
  margin: 0 auto 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
}

.form-alert[hidden] {
  display: none;
}

.form-alert--error {
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.25);
  color: #fca5a5;
}

.form-alert--error svg {
  flex-shrink: 0;
  margin-top: 1px;
  color: #f87171;
}

/* Form success */
.form-success {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(2.5rem, 5vw, 3.5rem) 2rem;
  background: rgba(56, 189, 248, 0.06);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
}

.form-success[hidden] {
  display: none;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: 50%;
  color: var(--color-accent);
}

.form-success h3 {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.form-success p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.form-success .btn {
  width: 100%;
  max-width: 300px;
}

.lead-form.is-hidden {
  display: none;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 5rem 0 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 3.5rem;
  padding-bottom: 3.5rem;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-top: 1rem;
  margin-bottom: 0.875rem;
}

.footer__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 340px;
}

.footer__links h4,
.footer__contact h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer__links ul li,
.footer__contact ul li {
  margin-bottom: 0.875rem;
}

.footer__links a,
.footer__contact a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
}

.footer__links a:hover,
.footer__contact a:hover {
  color: var(--color-accent-bright);
}

.footer__social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.footer__social-link {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.footer__social-link:hover {
  border-color: var(--color-border-accent);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.12);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 1.75rem 0;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

/* ============================================
   Mobile Sticky CTA
   ============================================ */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 0.875rem 1.25rem;
  padding-bottom: max(0.875rem, env(safe-area-inset-bottom));
  background: rgba(3, 5, 8, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.mobile-cta.visible {
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__stats {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__trust {
    text-align: center;
  }

  .hero__visual {
    order: -1;
  }

  .mockup {
    max-width: 460px;
    margin: 0 auto;
  }

  .mockup__float--stats { left: 0; }
  .mockup__float--leads { right: 0; }

  .problem-grid { grid-template-columns: repeat(2, 1fr); }

  .solution-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .solution__content .section__title,
  .solution__content .section__desc {
    text-align: center;
  }

  .solution__content .btn {
    display: flex;
    margin: 0 auto;
    width: fit-content;
  }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin: 0 auto;
  }

  .pricing-card--featured {
    transform: none;
  }

  .pricing-card--featured:hover {
    transform: translateY(-6px);
  }

  .cta-inline {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .cta-inline__trust {
    align-items: center;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-pad: clamp(4rem, 12vw, 6rem);
  }

  .nav__actions .lang-switch {
    display: none;
  }

  .nav__lang-mobile {
    display: block;
  }

  .logo-img--nav {
    height: 40px;
    max-width: min(168px, 52vw);
  }

  .nav__toggle { display: flex; }

  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(3, 5, 8, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.75rem;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 1000;
  }

  .nav__links.open { transform: translateX(0); }

  .nav__links a:not(.btn) {
    font-size: 1.125rem;
  }

  .nav__links .btn {
    margin-top: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
  }

  .hero {
    min-height: auto;
  }

  .hero__inner {
    padding-top: 1.5rem;
    padding-bottom: 2.5rem;
    gap: 2rem;
  }

  .hero__title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .hero__stats {
    grid-template-columns: repeat(3, 1fr);
    padding: 1rem;
  }

  .hero__stat-value {
    font-size: 1.25rem;
  }

  .hero__stat-label {
    font-size: 0.625rem;
  }

  .mockup__float { display: none; }

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

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

  .problem-grid,
  .services-grid,
  .why-grid,
  .process-steps,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section__header {
    margin-bottom: 2.5rem;
  }

  .mobile-cta {
    display: block;
  }

  body {
    padding-bottom: 80px;
  }

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

  .lead-form__grid {
    grid-template-columns: 1fr;
  }

  .lead-form {
    padding: 1.5rem;
  }

  .form-field input,
  .form-field select,
  .form-field textarea {
    font-size: 16px; /* prevents iOS zoom on focus */
  }
}

@media (max-width: 380px) {
  .btn--lg, .btn--xl {
    font-size: 0.9375rem;
    padding: 0.9375rem 1.5rem;
  }

  .hero__stats {
    padding: 0.875rem 0.5rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .mockup__float,
  .mockup__ring,
  .badge__dot {
    animation: none;
  }

  .btn--primary:hover,
  .problem-card:hover,
  .service-card:hover,
  .why-item:hover,
  .process-step:hover,
  .portfolio-card:hover,
  .pricing-card:hover {
    transform: none;
  }
}