/* ========================================
   ONE1 STUDIO — Premium UI
   Version 3.0 — Insane Smooth Animations
   ======================================== */

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

:root {
  --black: #181817;
  --black-deep: #0e0e0d;
  --white: #fdfefe;
  --gray: #9a9a9a;
  --gray-light: #c0c0c0;
  --light-bg: #f7f7f6;
  --card-bg: #1f1f1e;
  --card-bg-hover: #252524;
  --border: #2a2a29;
  --border-light: #e2e2e0;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --shadow-glow: 0 0 80px rgba(253,254,254,0.04);
  --shadow-glow-strong: 0 0 120px rgba(253,254,254,0.08);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease-smooth);
  --transition-slow: 0.5s var(--ease-out);
  --transition-spring: 0.5s var(--ease-spring);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: rgba(253,254,254,0.15); color: var(--white); }
.section-light ::selection { background: rgba(24,24,23,0.12); color: var(--black); }

img { display: block; max-width: 100%; }
a { transition: color var(--transition), opacity var(--transition); }

/* ========================================
   SMOOTH SCROLL REVEAL SYSTEM
   ======================================== */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }

/* ========================================
   NAVIGATION
   ======================================== */

nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: background 0.4s var(--ease-smooth), border-color 0.4s var(--ease-smooth), 
              box-shadow 0.4s var(--ease-smooth), transform 0.3s var(--ease-smooth);
  background: rgba(24,24,23,0.5);
  backdrop-filter: blur(32px) saturate(1.2);
  -webkit-backdrop-filter: blur(32px) saturate(1.2);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
nav.scrolled {
  background: rgba(24,24,23,0.92);
  border-bottom-color: rgba(255,255,255,0.08);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
nav.nav-hidden { transform: translateY(-100%); }

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  height: 34px;
  filter: brightness(0) invert(1);
  transition: opacity var(--transition), transform 0.3s var(--ease-spring);
}
.nav-logo:hover { opacity: 0.8; transform: scale(1.02); }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  color: var(--gray);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  position: relative;
}
.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--white);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:not(.nav-cta):hover { color: var(--white); }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  background: var(--white) !important;
  color: var(--black) !important;
  padding: 9px 22px;
  border-radius: 8px;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 13px !important;
  letter-spacing: 0.01em;
  transition: transform 0.3s var(--ease-spring), box-shadow var(--transition) !important;
}
.nav-cta:hover {
  transform: translateY(-2px) scale(1.02) !important;
  box-shadow: 0 6px 20px rgba(253,254,254,0.15) !important;
}
.nav-cta:active { transform: translateY(0) scale(0.98) !important; }

/* Mobile Nav */
.mobile-menu { display: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 4px; z-index: 10; }
.mobile-menu span {
  display: block; width: 22px; height: 1.5px; background: var(--white);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
  transform-origin: center;
}
.mobile-menu.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.mobile-menu.open span:nth-child(2) { opacity: 0; }
.mobile-menu.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }
.mobile-nav {
  display: flex; flex-direction: column; padding: 0 32px; gap: 0;
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s var(--ease-out), padding 0.4s var(--ease-out);
  border-top: 1px solid transparent;
}
.mobile-nav.open {
  max-height: 200px; padding: 12px 32px 20px;
  border-top-color: rgba(255,255,255,0.06);
}
.mobile-nav a {
  color: var(--gray); text-decoration: none; font-size: 15px; font-weight: 500;
  padding: 12px 0; opacity: 0; transform: translateX(-10px);
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out), color 0.2s;
}
.mobile-nav.open a { opacity: 1; transform: translateX(0); }
.mobile-nav.open a:nth-child(1) { transition-delay: 0.05s; }
.mobile-nav.open a:nth-child(2) { transition-delay: 0.1s; }
.mobile-nav.open a:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav a:hover { color: var(--white); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu { display: flex; }
  .nav-inner { padding: 14px 20px; }
}

/* ========================================
   LAYOUT
   ======================================== */

section { padding: 120px 32px; position: relative; }
.container { max-width: 1200px; margin: 0 auto; }
.section-dark { background: var(--black); color: var(--white); }
.section-light { background: var(--white); color: var(--black); }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Gradient dividers between sections */
.section-dark + .section-light::before,
.section-light + .section-dark::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(150,150,150,0.15), transparent);
}

.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 17px;
  max-width: 540px;
  line-height: 1.7;
  color: var(--gray);
}
.section-light .section-subtitle { color: #666; }

/* ========================================
   BUTTONS
   ======================================== */

.btn-primary {
  display: inline-block;
  background: var(--white);
  color: var(--black);
  padding: 15px 36px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: transform 0.35s var(--ease-spring), box-shadow 0.4s var(--ease-out);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-out);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px rgba(253,254,254,0.15);
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:active { transform: translateY(-1px) scale(0.99); }
.btn-dark { background: var(--black); color: var(--white); }
.btn-dark:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.btn-dark::before { background: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0) 100%); }

/* ========================================
   HERO
   ======================================== */

.hero {
  padding: 180px 32px 130px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
/* Ambient glow */
.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(253,254,254,0.035) 0%, transparent 65%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
  0% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  100% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}
/* Floating particles (subtle) */
.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 15%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(253,254,254,0.02) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 12s ease-in-out infinite;
  pointer-events: none;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-20px, 30px); }
  66% { transform: translate(15px, -20px); }
}

.hero-badge {
  display: inline-block;
  background: rgba(253,254,254,0.05);
  border: 1px solid rgba(253,254,254,0.08);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
  color: var(--gray);
  margin-bottom: 28px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: badgeFade 1s 0.2s var(--ease-out) both;
}
@keyframes badgeFade {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.04;
  margin-bottom: 24px;
  letter-spacing: -0.045em;
  animation: heroTitle 0.9s 0.3s var(--ease-out) both;
}
@keyframes heroTitle {
  from { opacity: 0; transform: translateY(30px); filter: blur(4px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.hero p {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--gray);
  max-width: 540px;
  margin: 0 auto 44px;
  line-height: 1.7;
  animation: heroSub 0.9s 0.5s var(--ease-out) both;
}
@keyframes heroSub {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero .btn-primary {
  animation: heroCta 0.8s 0.7s var(--ease-out) both;
}
@keyframes heroCta {
  from { opacity: 0; transform: translateY(16px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 64px;
  margin-top: 80px;
  flex-wrap: wrap;
}
.stat {
  text-align: center;
  animation: statFade 0.7s var(--ease-out) both;
}
.stat:nth-child(1) { animation-delay: 0.9s; }
.stat:nth-child(2) { animation-delay: 1.0s; }
.stat:nth-child(3) { animation-delay: 1.1s; }
@keyframes statFade {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.stat-number {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 12px;
  color: rgba(253,254,254,0.4);
  margin-top: 6px;
  letter-spacing: 0.03em;
}

/* ========================================
   PROBLEM CARDS
   ======================================== */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 56px;
}
.problem-card {
  padding: 32px 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  background: var(--white);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-out), border-color 0.3s;
  cursor: default;
}
.problem-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 20px 50px rgba(0,0,0,0.08);
  border-color: #d0d0ce;
}
.problem-card .icon {
  font-size: 28px;
  margin-bottom: 16px;
  transition: transform 0.4s var(--ease-spring);
}
.problem-card:hover .icon { transform: scale(1.15); }
.problem-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.problem-card p { font-size: 14px; color: #666; line-height: 1.7; }

/* ========================================
   SPLIT SECTION (Solution)
   ======================================== */

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 900px) {
  .split-section { grid-template-columns: 1fr; gap: 48px; }
}
.check-list { list-style: none; }
.check-list li {
  padding: 11px 0;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 14px;
  line-height: 1.5;
}
.check-list li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(253,254,254,0.06);
  border: 1px solid rgba(253,254,254,0.1);
  border-radius: 50%;
  font-size: 11px;
  flex-shrink: 0;
  font-weight: 600;
  transition: background 0.3s, transform 0.3s var(--ease-spring);
}
.check-list li:hover::before {
  background: rgba(253,254,254,0.12);
  transform: scale(1.1);
}

/* Chat Demo */
.chat-demo {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-glow);
  transition: box-shadow 0.5s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.chat-demo::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; bottom: -1px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(253,254,254,0.08), transparent, rgba(253,254,254,0.04));
  z-index: 0;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.chat-demo:hover::before { opacity: 1; }
.chat-demo:hover { box-shadow: var(--shadow-glow-strong); }
.chat-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  margin-bottom: 10px;
  max-width: 82%;
  font-size: 14px;
  line-height: 1.55;
  position: relative;
  z-index: 1;
}
.chat-bubble.customer {
  background: rgba(253,254,254,0.05);
  border: 1px solid rgba(253,254,254,0.06);
  margin-left: auto;
  border-bottom-right-radius: 4px;
  color: var(--gray);
}
.chat-bubble.ai {
  background: rgba(253,254,254,0.1);
  border: 1px solid rgba(253,254,254,0.08);
  border-bottom-left-radius: 4px;
}
.chat-time {
  text-align: center;
  font-size: 11px;
  color: rgba(253,254,254,0.3);
  margin-top: 16px;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

/* Chat typing animation for demo */
.chat-demo.animate .chat-bubble {
  opacity: 0;
  transform: translateY(12px);
  animation: chatBubbleIn 0.4s var(--ease-out) forwards;
}
.chat-demo.animate .chat-bubble:nth-child(1) { animation-delay: 0.1s; }
.chat-demo.animate .chat-bubble:nth-child(2) { animation-delay: 0.5s; }
.chat-demo.animate .chat-bubble:nth-child(3) { animation-delay: 1.1s; }
.chat-demo.animate .chat-bubble:nth-child(4) { animation-delay: 1.5s; }
.chat-demo.animate .chat-time { opacity: 0; animation: chatBubbleIn 0.4s 2s var(--ease-out) forwards; }
@keyframes chatBubbleIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   STEPS
   ======================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  margin-top: 56px;
}
.step { position: relative; }
.step-number {
  font-size: 60px;
  font-weight: 800;
  opacity: 0.06;
  margin-bottom: 4px;
  letter-spacing: -0.04em;
  line-height: 1;
  transition: opacity 0.4s;
}
.step:hover .step-number { opacity: 0.12; }
.section-light .step-number { color: var(--black); }
.section-dark .step-number { color: var(--white); }
.step h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.step p { font-size: 15px; color: #666; line-height: 1.7; }
.section-dark .step p { color: var(--gray); }

/* ========================================
   TRUST
   ======================================== */

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 56px;
}
.trust-item {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  transition: background 0.4s var(--ease-out), border-color 0.4s, transform 0.4s var(--ease-spring);
}
.trust-item:hover {
  background: rgba(253,254,254,0.03);
  border-color: rgba(253,254,254,0.06);
  transform: translateY(-4px);
}
.trust-icon {
  font-size: 32px;
  margin-bottom: 16px;
  display: inline-block;
  transition: transform 0.4s var(--ease-spring);
}
.trust-item:hover .trust-icon { transform: scale(1.15) rotate(-3deg); }
.trust-item h4 { font-size: 17px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em; }
.trust-item p { font-size: 14px; color: var(--gray); line-height: 1.7; }

/* ========================================
   MULTI-STEP FORM
   ======================================== */

.form-section { max-width: 640px; margin: 0 auto; }
.form-wrapper {
  margin-top: 48px;
  background: var(--light-bg);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.4s;
}
.form-wrapper:focus-within {
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

/* Progress */
.progress-bar {
  height: 3px;
  background: var(--border-light);
  border-radius: 3px;
  margin-bottom: 10px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--black);
  border-radius: 3px;
  width: 20%;
  transition: width 0.5s var(--ease-out);
}
.step-indicator {
  font-size: 11px;
  color: #b0b0b0;
  text-align: right;
  margin-bottom: 32px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Steps */
.form-step { display: none; }
.form-step.active {
  display: block;
  animation: stepSlideIn 0.45s var(--ease-out);
}
@keyframes stepSlideIn {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes stepSlideInReverse {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}

.step-header { margin-bottom: 24px; }
.step-header h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.step-header p { font-size: 14px; color: #888; line-height: 1.6; }

/* Option Cards */
.option-cards { display: flex; flex-direction: column; gap: 10px; }
.option-cards.horizontal { flex-direction: row; flex-wrap: wrap; }
.option-card { display: block; cursor: pointer; position: relative; }
.option-card input { position: absolute; opacity: 0; pointer-events: none; }
.option-content {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 2px solid var(--border-light);
  background: #fff;
  transition: all 0.25s var(--ease-out);
  user-select: none;
}
.option-card:hover .option-content {
  border-color: #c0c0c0;
  transform: translateX(4px);
}
.option-card input:checked + .option-content {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(24,24,23,0.15);
  transform: translateX(4px);
}
.option-icon { font-size: 20px; flex-shrink: 0; transition: transform 0.3s var(--ease-spring); }
.option-card:hover .option-icon { transform: scale(1.1); }
.option-text { font-size: 14px; font-weight: 500; line-height: 1.4; }
.option-card.small .option-content {
  justify-content: center;
  padding: 13px 20px;
}
.option-card.small { flex: 1; min-width: 70px; }
.option-card.small:hover .option-content { transform: translateY(-2px); }
.option-card.small input:checked + .option-content { transform: translateY(-2px); }

/* Imagine Box */
.imagine-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.imagine-item {
  padding: 9px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  line-height: 1.5;
  transition: transform 0.3s var(--ease-out);
}
.imagine-item:hover { transform: translateX(4px); }

/* Form Inputs */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--black);
  letter-spacing: 0.01em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: 10px;
  border: 2px solid var(--border-light);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  background: #fff;
  color: var(--black);
  transition: border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), transform 0.2s;
  appearance: none;
  -webkit-appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--black);
  box-shadow: 0 0 0 4px rgba(24,24,23,0.06);
  transform: translateY(-1px);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #c5c5c5; }
.form-group textarea { resize: vertical; min-height: 100px; }

/* Form Nav */
.form-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
}
.btn-back {
  background: none;
  border: none;
  color: #999;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  padding: 12px 4px;
  transition: color var(--transition), transform 0.2s;
}
.btn-back:hover { color: var(--black); transform: translateX(-2px); }
.btn-next {
  background: var(--black);
  color: var(--white);
  border: none;
  padding: 13px 32px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  margin-left: auto;
  transition: transform 0.3s var(--ease-spring), box-shadow var(--transition);
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.btn-next::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.06) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}
.btn-next:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(24,24,23,0.2);
}
.btn-next:hover::before { transform: translateX(100%); }
.btn-next:active { transform: translateY(0); }
.submit-btn {
  width: 100%;
  padding: 16px;
  background: var(--black);
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: transform 0.35s var(--ease-spring), box-shadow var(--transition);
  margin-top: 8px;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.submit-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.06) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}
.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(24,24,23,0.25);
}
.submit-btn:hover::before { transform: translateX(100%); }
.submit-btn:active { transform: translateY(-1px); }

/* ========================================
   FINAL CTA
   ======================================== */

.final-cta {
  padding: 100px 32px;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(253,254,254,0.025) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta h2 {
  font-size: clamp(24px, 3.5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 12px;
}

/* ========================================
   FOOTER
   ======================================== */

footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 48px 32px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.footer-logo {
  height: 26px;
  margin: 0 auto 20px;
  filter: brightness(0) invert(1);
  opacity: 0.4;
  transition: opacity 0.3s;
}
.footer-logo:hover { opacity: 0.6; }
.footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-bottom: 20px;
}
.footer-links a {
  color: rgba(253,254,254,0.35);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--gray); }
footer p { font-size: 12px; color: rgba(253,254,254,0.25); }

/* ========================================
   PRICING PAGE
   ======================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 56px;
}
.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  position: relative;
  transition: transform 0.4s var(--ease-spring), border-color 0.3s, box-shadow 0.4s var(--ease-out);
}
.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(253,254,254,0.15);
  box-shadow: var(--shadow-glow-strong);
}
.pricing-card.popular {
  border-color: rgba(253,254,254,0.3);
  box-shadow: var(--shadow-glow);
}
.popular-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  color: var(--black);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}
.tier-name {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gray);
  margin-bottom: 10px;
}
.price {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -0.03em;
}
.price span { font-size: 16px; font-weight: 400; }
.price-note { font-size: 12px; color: var(--gray); margin-bottom: 28px; }
.pricing-card ul { list-style: none; margin-bottom: 28px; }
.pricing-card li {
  font-size: 13px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex;
  gap: 10px;
  align-items: center;
  line-height: 1.5;
}
.pricing-card li:last-child { border-bottom: none; }
.card-btn {
  display: block;
  text-align: center;
  padding: 13px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  background: var(--white);
  color: var(--black);
  letter-spacing: 0.01em;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.card-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(253,254,254,0.12);
}

/* ========================================
   FAQ PAGE
   ======================================== */

.faq-list { max-width: 720px; margin: 56px auto 0; }
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}
.section-light .faq-item { border-bottom-color: var(--border-light); }
.faq-question {
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  transition: color 0.2s, padding-left 0.3s var(--ease-out);
  letter-spacing: -0.01em;
}
.faq-question:hover { padding-left: 4px; }
.faq-question:hover { color: var(--gray-light); }
.section-light .faq-question:hover { color: #444; }
.faq-question::after {
  content: '+';
  font-size: 20px;
  font-weight: 300;
  transition: transform 0.35s var(--ease-spring);
  flex-shrink: 0;
  margin-left: 20px;
  opacity: 0.4;
}
.faq-item.open .faq-question::after {
  transform: rotate(135deg);
  opacity: 0.7;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease-out), opacity 0.3s;
  opacity: 0;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  opacity: 1;
}
.faq-answer p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
  padding-bottom: 24px;
}
.section-light .faq-answer p { color: #666; }

/* ========================================
   PLAN RESULT PAGES
   ======================================== */

.plan-hero {
  padding: 180px 32px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.plan-hero::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(253,254,254,0.035) 0%, transparent 65%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
.plan-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid rgba(253,254,254,0.1);
  border-radius: var(--radius-xl);
  padding: 44px 36px;
  text-align: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.plan-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(253,254,254,0.15), transparent);
}
.plan-card .tier-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--gray);
  margin-bottom: 12px;
}
.plan-card .plan-price {
  font-size: 52px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.plan-card .plan-desc {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 36px;
  line-height: 1.7;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}
.plan-card .plan-features { list-style: none; text-align: left; margin-bottom: 36px; }
.plan-card .plan-features li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 14px;
  display: flex;
  gap: 12px;
  align-items: center;
  line-height: 1.5;
  transition: transform 0.2s var(--ease-out);
}
.plan-card .plan-features li:hover { transform: translateX(4px); }
.plan-card .plan-features li:last-child { border-bottom: none; }
.plan-card .plan-btn {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--white);
  color: var(--black);
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.01em;
  transition: transform 0.35s var(--ease-spring), box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.plan-card .plan-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-out);
}
.plan-card .plan-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(253,254,254,0.15);
}
.plan-card .plan-btn:hover::before { transform: translateX(100%); }
.plan-guarantee {
  text-align: center;
  margin-top: 28px;
  font-size: 12px;
  color: rgba(253,254,254,0.3);
  letter-spacing: 0.01em;
}

/* ========================================
   ABOUT PAGE
   ======================================== */

.about-hero {
  padding: 180px 32px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(253,254,254,0.03) 0%, transparent 65%);
  pointer-events: none;
}
.about-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 32px;
}
.about-content p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 20px;
}
.section-dark .about-content p { color: rgba(253,254,254,0.6); }
.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 56px;
}
.value-card {
  padding: 28px 24px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  transition: border-color 0.3s, background 0.3s, transform 0.4s var(--ease-spring);
}
.value-card:hover {
  border-color: rgba(253,254,254,0.12);
  background: rgba(253,254,254,0.02);
  transform: translateY(-4px);
}
.value-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.value-card p { font-size: 14px; color: var(--gray); line-height: 1.7; }

/* ========================================
   CURSOR GLOW (subtle, desktop only)
   ======================================== */

.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(253,254,254,0.015) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}
body:hover .cursor-glow { opacity: 1; }

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  .hero { padding: 150px 20px 90px; }
  section { padding: 80px 20px; }
  .form-wrapper { padding: 28px 22px; }
  .plan-card { padding: 36px 24px; }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-stats { gap: 36px; margin-top: 56px; }
  .stat-number { font-size: 24px; }
  .final-cta { padding: 80px 20px; }
  footer { padding: 36px 20px; }
  .about-content { padding: 0 4px; }
  .plan-hero { padding: 150px 20px 60px; }
  .about-hero { padding: 150px 20px 40px; }
  .cursor-glow { display: none; }
}

@media (max-width: 480px) {
  .option-cards.horizontal { gap: 8px; }
  .option-card.small .option-content { padding: 12px 10px; }
  .option-card.small .option-text { font-size: 13px; }
  .hero h1 { letter-spacing: -0.035em; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1 !important;
    transform: none !important;
  }
}