/* ==========================================================================
   Arontier Theme — main.css
   Next.js 디자인 시스템 재현
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* -- 색상 팔레트 -- */
  --color-navy-950:    #05090F;
  --color-navy-900:    #0A1628;
  --color-navy-800:    #112240;
  --color-navy-700:    #1B3358;
  --color-navy-600:    #264573;

  --color-brand-500:   #1A65F0;
  --color-brand-600:   #0D4ED8;
  --color-brand-dark:  #1B6CC2;
  --color-sky:         #30A2DC;
  --color-sky-light:   #60c8f0;

  --color-purple:      #7C3AED;
  --color-purple-light:#a78bfa;

  --color-green-600:   #059669;
  --color-green-400:   #10B981;

  --color-amber-500:   #F59E0B;
  --color-amber-600:   #D97706;

  --color-gray-50:     #F8F9FB;
  --color-gray-100:    #F1F3F7;
  --color-gray-200:    #E5E7EB;
  --color-gray-300:    #D1D5DB;
  --color-gray-400:    #9BA3B2;
  --color-gray-500:    #6B7280;
  --color-gray-700:    #374151;
  --color-gray-900:    #1a202c;

  --color-white:       #ffffff;

  /* 누락 변수 별칭 — 템플릿에서 var(미정의) 사용으로 안 보이던 요소 방지 */
  --color-brand:       #1A65F0;
  --color-brand-light: #7DD3FC;
  --color-blue-500:    #1A65F0;
  --color-purple-500:  #7C3AED;
  --color-teal-500:    #30A2DC;
  --color-navy:        #0A1628;
  --color-text:        #0A1628;
  --color-text-muted:  #64748B;

  /* -- 폰트 -- */
  --font-family:       'Red Hat Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base:    1rem;        /* 16px */
  --line-height-base:  1.6;

  /* -- 폰트 크기 스케일 -- */
  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg:   1.125rem;   /* 18px */
  --text-xl:   1.25rem;    /* 20px */
  --text-2xl:  1.5rem;     /* 24px */
  --text-3xl:  1.875rem;   /* 30px */
  --text-4xl:  2.25rem;    /* 36px */
  --text-5xl:  3rem;       /* 48px */
  --text-6xl:  3.75rem;    /* 60px */
  --text-7xl:  4.5rem;     /* 72px */

  /* -- 폰트 굵기 -- */
  --font-normal:    400;
  --font-medium:    500;
  --font-semibold:  600;
  --font-bold:      700;
  --font-extrabold: 800;

  /* -- 스페이싱 -- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* -- 레이아웃 -- */
  --max-width:        1280px;
  --section-padding:  var(--space-20) 0;
  --container-px-sm:  1rem;
  --container-px-md:  1.5rem;
  --container-px-lg:  2rem;

  /* -- 반경 -- */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* -- 그림자 -- */
  --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.16);
  --shadow-brand: 0 8px 30px rgba(26,101,240,0.35);

  /* -- 트랜지션 -- */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
  --transition-reveal: 700ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* -- 블러 -- */
  --blur-sm:  4px;
  --blur-md:  12px;
  --blur-lg:  20px;
  --blur-xl:  40px;

  /* -- Z-index -- */
  --z-base:    1;
  --z-dropdown: 10;
  --z-sticky:  20;
  --z-fixed:   50;
  --z-modal:   60;
  --z-toast:   70;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-brand-dark);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-brand-500);
}

ul,
ol {
  list-style: none;
}

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

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: var(--font-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: inherit;
}

h1 {
  font-size: clamp(var(--text-5xl), 5vw, var(--text-7xl));
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(var(--text-3xl), 3.5vw, var(--text-5xl));
  font-weight: var(--font-bold);
}

h3 {
  font-size: clamp(var(--text-xl), 2vw, var(--text-2xl));
  font-weight: var(--font-semibold);
}

h4 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

h5 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

h6 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
}

p {
  line-height: var(--line-height-base);
  color: var(--color-gray-700);
}

strong, b {
  font-weight: var(--font-semibold);
}

em, i {
  font-style: italic;
}

small {
  font-size: var(--text-sm);
}

/* 섹션 레이블 (eyebrow text) */
.eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-500);
  margin-bottom: var(--space-3);
}

.eyebrow-sky {
  color: var(--color-sky);
}

/* 섹션 부제목 */
.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-500);
  line-height: 1.7;
  max-width: 640px;
}

.section-subtitle-white {
  color: rgba(255, 255, 255, 0.65);
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px-sm);
  padding-right: var(--container-px-sm);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--container-px-md);
    padding-right: var(--container-px-md);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--container-px-lg);
    padding-right: var(--container-px-lg);
  }
}

.section {
  padding: var(--section-padding);
  position: relative;
  overflow: hidden;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-32) 0;
}

/* --------------------------------------------------------------------------
   5. Dark / Light Section Pattern
   -------------------------------------------------------------------------- */
.section-dark {
  background-color: var(--color-navy-900);
  color: var(--color-white);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-darker {
  background-color: var(--color-navy-950);
  color: var(--color-white);
}

.section-navy-800 {
  background-color: var(--color-navy-800);
  color: var(--color-white);
}

.section-light {
  background-color: var(--color-white);
  color: var(--color-gray-900);
}

.section-gray {
  background-color: var(--color-gray-50);
  color: var(--color-gray-900);
}

.section-gray-100 {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

/* --------------------------------------------------------------------------
   6. Text Utilities
   -------------------------------------------------------------------------- */

/* Gradient text */
.text-gradient {
  background: linear-gradient(135deg, var(--color-brand-500), var(--color-sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.text-gradient-sky {
  background: linear-gradient(135deg, var(--color-sky), var(--color-sky-light), var(--color-purple-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.text-gradient-purple {
  background: linear-gradient(135deg, var(--color-purple), var(--color-sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, var(--color-amber-500), var(--color-amber-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* Color utilities */
.text-muted    { color: var(--color-gray-500); }
.text-muted-sm { color: var(--color-gray-400); font-size: var(--text-sm); }
.text-navy     { color: var(--color-navy-900); }
.text-brand    { color: var(--color-brand-500); }
.text-sky      { color: var(--color-sky); }
.text-white    { color: var(--color-white); }
.text-white-70 { color: rgba(255, 255, 255, 0.7); }
.text-white-50 { color: rgba(255, 255, 255, 0.5); }
.text-green    { color: var(--color-green-400); }
.text-amber    { color: var(--color-amber-500); }
.text-purple   { color: var(--color-purple); }

/* Alignment */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* --------------------------------------------------------------------------
   7. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  font-family: var(--font-family);
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
}

.btn:active {
  transform: translateY(1px);
}

/* Primary — brand blue */
.btn-primary {
  background-color: var(--color-brand-500);
  color: var(--color-white);
  border-color: var(--color-brand-500);
  box-shadow: 0 4px 14px rgba(26, 101, 240, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-brand-600);
  border-color: var(--color-brand-600);
  color: var(--color-white);
  box-shadow: var(--shadow-brand);
  transform: translateY(-1px);
}

/* Outline — brand border */
.btn-outline {
  background-color: transparent;
  color: var(--color-brand-500);
  border-color: var(--color-brand-500);
}

.btn-outline:hover {
  background-color: var(--color-brand-500);
  color: var(--color-white);
  box-shadow: var(--shadow-brand);
  transform: translateY(-1px);
}

/* Dark (used on dark sections) */
.btn-dark {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(var(--blur-sm));
}

.btn-dark:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

/* White (used on dark sections) */
.btn-white {
  background-color: var(--color-white);
  color: var(--color-navy-900);
  border-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background-color: var(--color-gray-50);
  color: var(--color-navy-900);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Sizes */
.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn-xl {
  padding: 1.125rem 3rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

/* Icon button */
.btn-icon {
  padding: 0.75rem;
  border-radius: var(--radius-lg);
}

/* Full width */
.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   8. Animations & Reveals
   -------------------------------------------------------------------------- */

/* -- Reveal on scroll -- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
  will-change: opacity, transform;
}

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

.reveal-fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
  will-change: opacity, transform;
}

.reveal-fade-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
  will-change: opacity, transform;
}

.reveal-fade-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-zoom {
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
  will-change: opacity, transform;
}

.reveal-zoom.is-visible {
  opacity: 1;
  transform: scale(1);
}

.reveal-fade {
  opacity: 0;
  transition: opacity var(--transition-reveal);
  will-change: opacity;
}

.reveal-fade.is-visible {
  opacity: 1;
}

/* -- Stagger delays -- */
.reveal-delay-1  { transition-delay: 100ms; }
.reveal-delay-2  { transition-delay: 200ms; }
.reveal-delay-3  { transition-delay: 300ms; }
.reveal-delay-4  { transition-delay: 400ms; }
.reveal-delay-5  { transition-delay: 500ms; }
.reveal-delay-6  { transition-delay: 600ms; }

/* -- Keyframes -- */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes statPop {
  0%   { transform: scale(0.85); opacity: 0; }
  60%  { transform: scale(1.04); opacity: 1; }
  100% { transform: scale(1);    opacity: 1; }
}

@keyframes floatBob {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

@keyframes pipelineFill {
  from { width: 0; }
  to   { width: var(--fill-target, 100%); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* -- Utility animation classes -- */
.animate-fade-up {
  animation: fadeSlideUp 0.6s ease both;
}

.animate-fade-in {
  animation: fadeIn 0.5s ease both;
}

.animate-stat-pop {
  animation: statPop 0.55s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.float-bob {
  animation: floatBob 5s ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Shimmer loading skeleton */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-gray-100) 25%,
    var(--color-gray-200) 50%,
    var(--color-gray-100) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   9. Stat Cards
   -------------------------------------------------------------------------- */
.stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-6);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  text-align: center;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.18);
}

.stat-card__number {
  font-size: clamp(var(--text-4xl), 4vw, var(--text-5xl));
  font-weight: var(--font-extrabold);
  line-height: 1;
  margin-bottom: var(--space-2);
  background: linear-gradient(135deg, var(--color-brand-500), var(--color-sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card__label {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.4;
}

.stat-card__sub {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--space-1);
}

/* Light variant */
.stat-card-light {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-6);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.stat-card-light:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.stat-card-light .stat-card__number {
  background: linear-gradient(135deg, var(--color-brand-500), var(--color-sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card-light .stat-card__label {
  color: var(--color-gray-500);
}

/* --------------------------------------------------------------------------
   10. Tag / Badge Pills
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.25em 0.75em;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
}

/* Partnership — 브랜드 블루 */
.tag-partnership {
  background-color: rgba(26, 101, 240, 0.12);
  color: #2563EB;
  border: 1px solid rgba(26, 101, 240, 0.2);
}

/* Research — 보라 */
.tag-research {
  background-color: rgba(124, 58, 237, 0.12);
  color: #7C3AED;
  border: 1px solid rgba(124, 58, 237, 0.2);
}

/* Conference — 스카이 */
.tag-conference {
  background-color: rgba(48, 162, 220, 0.12);
  color: #0284C7;
  border: 1px solid rgba(48, 162, 220, 0.2);
}

/* Investment — 앰버 */
.tag-investment {
  background-color: rgba(245, 158, 11, 0.12);
  color: #D97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Platform — 그린 */
.tag-platform {
  background-color: rgba(5, 150, 105, 0.12);
  color: #059669;
  border: 1px solid rgba(5, 150, 105, 0.2);
}

/* Recognition / Award — 앰버-딥 */
.tag-recognition {
  background-color: rgba(217, 119, 6, 0.12);
  color: #B45309;
  border: 1px solid rgba(217, 119, 6, 0.2);
}

/* Clinical — 그린 */
.tag-clinical {
  background-color: rgba(16, 185, 129, 0.12);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Regulatory */
.tag-regulatory {
  background-color: rgba(239, 68, 68, 0.1);
  color: #DC2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Notice — 앰버 (News 페이지 Notice 배지와 동일 톤) */
.tag-notice {
  background-color: #FEF3C7;
  color: #B45309;
  border: 1px solid rgba(180, 83, 9, 0.2);
}

/* Generic gray badge */
.tag-gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}

/* Dark version of tags (on dark backgrounds) */
.tag-dark-partnership {
  background-color: rgba(26, 101, 240, 0.2);
  color: #93C5FD;
  border: 1px solid rgba(26, 101, 240, 0.3);
}

.tag-dark-research {
  background-color: rgba(124, 58, 237, 0.2);
  color: #C4B5FD;
  border: 1px solid rgba(124, 58, 237, 0.3);
}

.tag-dark-platform {
  background-color: rgba(5, 150, 105, 0.2);
  color: #6EE7B7;
  border: 1px solid rgba(5, 150, 105, 0.3);
}

/* --------------------------------------------------------------------------
   11. Section Dividers
   -------------------------------------------------------------------------- */
.section-curve {
  position: relative;
}

.section-curve::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 80' preserveAspectRatio='none'%3E%3Cpath fill='%23ffffff' d='M0,40 C360,80 1080,0 1440,40 L1440,80 L0,80 Z'/%3E%3C/svg%3E");
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 1;
}

.section-curve-dark::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 80' preserveAspectRatio='none'%3E%3Cpath fill='%230A1628' d='M0,40 C360,80 1080,0 1440,40 L1440,80 L0,80 Z'/%3E%3C/svg%3E");
}

.section-curve-gray::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 80' preserveAspectRatio='none'%3E%3Cpath fill='%23F8F9FB' d='M0,40 C360,80 1080,0 1440,40 L1440,80 L0,80 Z'/%3E%3C/svg%3E");
}

.section-divider {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.section-divider svg {
  width: 100%;
  height: 60px;
}

/* --------------------------------------------------------------------------
   12. Background Patterns
   -------------------------------------------------------------------------- */

/* Dot pattern */
.bg-dots {
  background-image: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.08) 1px,
    transparent 1px
  );
  background-size: 28px 28px;
}

.bg-dots-dark {
  background-image: radial-gradient(
    circle,
    rgba(26, 101, 240, 0.15) 1px,
    transparent 1px
  );
  background-size: 28px 28px;
}

.bg-dots-light {
  background-image: radial-gradient(
    circle,
    rgba(0, 0, 0, 0.06) 1px,
    transparent 1px
  );
  background-size: 24px 24px;
}

/* Noise texture overlay */
.bg-noise::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 0;
}

/* Grid pattern */
.bg-grid {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Radial glow (hero) */
.bg-radial-brand {
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(26, 101, 240, 0.25), transparent),
    radial-gradient(ellipse 50% 30% at 80% 60%, rgba(48, 162, 220, 0.12), transparent);
}

/* --------------------------------------------------------------------------
   14. Utility Helpers
   -------------------------------------------------------------------------- */

/* Flex */
.flex          { display: flex; }
.flex-col      { flex-direction: column; }
.items-center  { align-items: center; }
.items-start   { align-items: flex-start; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap     { flex-wrap: wrap; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Spacing */
.mb-2  { margin-bottom: var(--space-2); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mt-4  { margin-top: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }

/* Display */
.block        { display: block; }
.inline-block { display: inline-block; }
.hidden       { display: none; }

/* Misc */
.w-full  { width: 100%; }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Selection */
::selection {
  background-color: rgba(26, 101, 240, 0.2);
  color: inherit;
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-brand-500);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   15. Media Queries (Responsive)
   -------------------------------------------------------------------------- */

/* -- 768px: Tablet -- */
@media (max-width: 768px) {
  :root {
    --section-padding: var(--space-12) 0;
  }

  h1 {
    font-size: clamp(2rem, 8vw, var(--text-5xl));
  }

  h2 {
    font-size: clamp(1.75rem, 6vw, var(--text-4xl));
  }

  h3 {
    font-size: var(--text-xl);
  }

  .section-subtitle {
    font-size: var(--text-base);
  }

  .btn-xl {
    padding: 0.875rem 2rem;
    font-size: var(--text-base);
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: var(--space-6) var(--space-4);
  }
}

/* -- 1024px: Laptop -- */
@media (max-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* -- 1280px: Wide -- */
@media (min-width: 1280px) {
  .container {
    padding-left: var(--container-px-lg);
    padding-right: var(--container-px-lg);
  }
}