/* ============================================================
   VALTARA CIRCULAR SOLUTIONS — Design System & Styles
   Version: 1.0.0

   Table of Contents:
   1.  Custom Properties (Design Tokens)
   2.  Reset & Base
   3.  Typography System
   4.  Layout & Container
   5.  Navigation
   6.  Hero Section
   7.  Section Styles
   8.  Button System
   9.  Card System
   10. Icon Grid
   11. Comparison Diagram
   12. Dashboard / Data Viz
   13. Tabs & Accordions
   14. Forms
   15. Footer
   16. Animations & Keyframes
   17. Utility Classes
   18. Responsive — Tablet (768px)
   19. Responsive — Desktop (1024px)
   20. Responsive — Wide (1440px)
   ============================================================ */

/* ============================================================
   1. CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================ */
:root {
  /* --- Brand Colors --- */
  --color-navy:          #163A5F;
  --color-navy-light:    #1d4a75;
  --color-forest:        #2FA8A0;
  --color-teal:          #2FA8A0;
  --color-teal-light:    #3bbfb6;
  --color-amber:         #7CCB5D;
  --color-amber-hover:   #6bba4c;
  --color-amber-light:   rgba(124, 203, 93, 0.12);
  --color-green:         #7CCB5D;
  --color-green-soft:    rgba(124, 203, 93, 0.10);

  /* --- Neutrals --- */
  --color-white:         #ffffff;
  --color-warm-white:    #ffffff;
  --color-stone:         #f5f5f5;
  --color-stone-dark:    #e8e8e8;
  --color-steel:         #A7B0B7;
  --color-steel-light:   #bfc6cc;
  --color-steel-dark:    #4b5563;
  --color-charcoal:      #1f2937;
  --color-black:         #111827;

  /* --- Semantic --- */
  --color-success:       #7CCB5D;
  --color-warning:       #f59e0b;
  --color-error:         #ef4444;
  --color-info:          #2FA8A0;

  /* --- Typography --- */
  --font-body:           'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:           'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --fw-regular:          400;
  --fw-medium:           500;
  --fw-semibold:         600;
  --fw-bold:             700;
  --fw-extrabold:        800;

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

  --lh-tight:            1.15;
  --lh-snug:             1.3;
  --lh-normal:           1.6;
  --lh-relaxed:          1.75;

  --ls-tight:            -0.03em;
  --ls-normal:           0;
  --ls-wide:             0.05em;
  --ls-wider:            0.1em;

  /* --- Spacing Scale --- */
  --space-1:             0.25rem;    /* 4px  */
  --space-2:             0.5rem;     /* 8px  */
  --space-3:             0.75rem;    /* 12px */
  --space-4:             1rem;       /* 16px */
  --space-5:             1.25rem;    /* 20px */
  --space-6:             1.5rem;     /* 24px */
  --space-8:             2rem;       /* 32px */
  --space-10:            2.5rem;     /* 40px */
  --space-12:            3rem;       /* 48px */
  --space-16:            4rem;       /* 64px */
  --space-20:            5rem;       /* 80px */
  --space-24:            6rem;       /* 96px */
  --space-32:            8rem;       /* 128px */

  /* --- Border Radius --- */
  --radius-sm:           4px;
  --radius-md:           8px;
  --radius-lg:           12px;
  --radius-xl:           16px;
  --radius-2xl:          24px;
  --radius-full:         9999px;

  /* --- Shadows --- */
  --shadow-sm:           0 1px 2px rgba(22, 58, 95, 0.05);
  --shadow-md:           0 4px 12px rgba(22, 58, 95, 0.08);
  --shadow-lg:           0 8px 30px rgba(22, 58, 95, 0.12);
  --shadow-xl:           0 16px 50px rgba(22, 58, 95, 0.16);
  --shadow-card:         0 2px 8px rgba(22, 58, 95, 0.06);
  --shadow-card-hover:   0 12px 40px rgba(22, 58, 95, 0.14);
  --shadow-glow-amber:   0 0 30px rgba(124, 203, 93, 0.25);
  --shadow-glow-teal:    0 0 30px rgba(47, 168, 160, 0.20);

  /* --- Transitions --- */
  --ease-default:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in:             cubic-bezier(0.4, 0, 1, 1);
  --ease-out:            cubic-bezier(0, 0, 0.2, 1);
  --ease-spring:         cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast:       150ms;
  --duration-normal:     300ms;
  --duration-slow:       500ms;

  /* --- Z-Index Scale --- */
  --z-base:              1;
  --z-dropdown:          100;
  --z-sticky:            200;
  --z-navbar:            500;
  --z-overlay:           900;
  --z-modal:             1000;

  /* --- Container --- */
  --container-max:       1280px;
  --container-wide:      1440px;
  --container-narrow:    800px;
  --container-padding:   var(--space-5);
}


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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-charcoal);
  background-color: var(--color-warm-white);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

ul, ol {
  list-style: none;
}

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

input,
textarea,
select {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}

::selection {
  background-color: var(--color-teal);
  color: var(--color-white);
}


/* ============================================================
   3. TYPOGRAPHY SYSTEM
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-navy);
}

h1 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-extrabold);
}

h2 {
  font-size: var(--fs-2xl);
}

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

h4 {
  font-size: var(--fs-lg);
}

h5 {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
}

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

p {
  margin-bottom: var(--space-4);
  color: var(--color-steel-dark);
}

.text-lead {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-steel);
}

.text-overline {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-teal);
}

.text-caption {
  font-size: var(--fs-sm);
  color: var(--color-steel-light);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}

/* Section heading pattern */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-header .text-overline {
  display: block;
  margin-bottom: var(--space-3);
}

.section-header h2 {
  margin-bottom: var(--space-5);
}

.section-header p {
  font-size: var(--fs-md);
  color: var(--color-steel);
}

/* Dark background typography overrides */
.bg-dark h1,
.bg-dark h2,
.bg-dark h3,
.bg-dark h4,
.bg-dark h5,
.bg-dark h6 {
  color: var(--color-white);
}

.bg-dark p,
.bg-dark .text-lead {
  color: rgba(255, 255, 255, 0.7);
}

.bg-dark .text-overline {
  color: var(--color-amber);
}


/* ============================================================
   4. LAYOUT & CONTAINER
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--wide {
  max-width: var(--container-wide);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.grid {
  display: grid;
  gap: var(--space-6);
}

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

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}


/* ============================================================
   5. NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  padding: var(--space-5) 0;
  transition: background-color var(--duration-normal) var(--ease-default),
              padding var(--duration-normal) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}

.navbar--transparent {
  background-color: transparent;
}

.navbar--solid {
  background-color: rgba(22, 58, 95, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-3) 0;
  box-shadow: 0 2px 20px rgba(22, 58, 95, 0.15);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  color: var(--color-white);
  letter-spacing: var(--ls-tight);
}

.navbar__logo img {
  height: 36px;
  width: auto;
}

.navbar__logo-mark {
  font-weight: var(--fw-extrabold);
  font-size: var(--fs-xl);
}

.navbar__logo-sub {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-amber);
  display: block;
  margin-top: -2px;
}

/* Desktop nav links — hidden on mobile */
.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.navbar__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-fast) var(--ease-default);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-amber);
  transition: width var(--duration-normal) var(--ease-default);
}

.navbar__link:hover,
.navbar__link--active {
  color: var(--color-white);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__cta {
  margin-left: var(--space-4);
}

/* Mobile hamburger */
.navbar__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  z-index: calc(var(--z-navbar) + 10);
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-default),
              opacity var(--duration-fast) var(--ease-default);
}

.navbar__toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.navbar__toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-overlay);
  background-color: var(--color-navy);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-default),
              visibility var(--duration-slow) var(--ease-default);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__link {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              color var(--duration-fast) var(--ease-default);
}

.mobile-menu.is-open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for mobile menu items */
.mobile-menu.is-open .mobile-menu__link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(4) { transition-delay: 250ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(5) { transition-delay: 300ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(6) { transition-delay: 350ms; }
.mobile-menu.is-open .mobile-menu__link:nth-child(7) { transition-delay: 400ms; }

.mobile-menu__link:hover {
  color: var(--color-amber);
}


/* ============================================================
   6. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-navy);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__background img,
.hero__background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(22, 58, 95, 0.92) 0%,
    rgba(47, 168, 160, 0.85) 50%,
    rgba(22, 58, 95, 0.90) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--space-32) 0 var(--space-20);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: rgba(124, 203, 93, 0.12);
  border: 1px solid rgba(124, 203, 93, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-amber);
  margin-bottom: var(--space-6);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-green);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero h1 {
  color: var(--color-white);
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-6);
  max-width: 700px;
}

.hero h1 .text-gradient {
  background: linear-gradient(135deg, var(--color-amber) 0%, var(--color-teal-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--lh-relaxed);
  max-width: 560px;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  max-width: 500px;
}

.hero__stat {
  border-left: 2px solid var(--color-teal);
  padding-left: var(--space-4);
}

.hero__stat-value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
  color: var(--color-white);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.hero__stat-label {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

/* Hero split layout */
.hero--split .hero__content {
  display: flex;
  flex-direction: column;
}

.hero--split .hero__visual {
  display: none;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.hero__scroll-text {
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-amber), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}


/* ============================================================
   7. SECTION STYLES
   ============================================================ */
.section {
  padding: var(--space-20) 0;
  position: relative;
}

.section--lg {
  padding: var(--space-24) 0;
}

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

/* Alternating backgrounds */
.bg-white       { background-color: var(--color-white); }
.bg-warm        { background-color: var(--color-warm-white); }
.bg-stone       { background-color: var(--color-stone); }
.bg-navy        { background-color: var(--color-navy); }
.bg-dark        { background-color: var(--color-navy); }
.bg-forest      { background-color: var(--color-forest); }
.bg-gradient-dark {
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
}
.bg-gradient-subtle {
  background: linear-gradient(180deg, var(--color-warm-white) 0%, var(--color-stone) 100%);
}

/* Decorative section divider */
.section-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-stone-dark) 20%,
    var(--color-stone-dark) 80%,
    transparent 100%
  );
  margin: 0 auto;
  max-width: var(--container-max);
}


/* ============================================================
   8. BUTTON SYSTEM
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
  white-space: nowrap;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary — Amber/Gold CTA */
.btn--primary {
  background-color: var(--color-amber);
  color: var(--color-navy);
  border-color: var(--color-amber);
}

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

/* Secondary — Outline */
.btn--secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--secondary:hover {
  border-color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

/* Secondary Dark — for light backgrounds */
.btn--secondary-dark {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn--secondary-dark:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* Ghost — minimal */
.btn--ghost {
  background-color: transparent;
  color: var(--color-teal);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
}

.btn--ghost:hover {
  color: var(--color-teal-light);
}

.btn--ghost .btn__arrow {
  transition: transform var(--duration-normal) var(--ease-default);
}

.btn--ghost:hover .btn__arrow {
  transform: translateX(4px);
}

/* Button sizes */
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--fs-base);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-xs);
}

/* Button with icon */
.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}


/* ============================================================
   9. CARD SYSTEM
   ============================================================ */

/* --- Base Card --- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}

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

.card__body {
  padding: var(--space-6);
}

.card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-default);
}

.card:hover .card__image img {
  transform: scale(1.05);
}

/* --- Product Card --- */
.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid var(--color-stone-dark);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-default);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-green));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-default);
}

.product-card:hover {
  border-color: var(--color-teal);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

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

.product-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background-color: var(--color-green-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-teal);
  font-size: var(--fs-xl);
}

.product-card__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-3);
}

.product-card__description {
  font-size: var(--fs-sm);
  color: var(--color-steel);
  margin-bottom: var(--space-5);
  line-height: var(--lh-relaxed);
}

.product-card__tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-amber-light);
  color: var(--color-amber-hover);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

/* --- Value Proposition Card --- */
.value-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
  border: 1px solid var(--color-stone-dark);
  transition: all var(--duration-normal) var(--ease-default);
}

.value-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.value-card__number {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  color: var(--color-teal);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.value-card__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-3);
}

.value-card__text {
  font-size: var(--fs-sm);
  color: var(--color-steel);
  line-height: var(--lh-relaxed);
}

/* --- Industry Card --- */
.industry-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
}

.industry-card__image {
  position: absolute;
  inset: 0;
}

.industry-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-default);
}

.industry-card:hover .industry-card__image img {
  transform: scale(1.08);
}

.industry-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(22, 58, 95, 0.85) 0%,
    rgba(22, 58, 95, 0.2) 60%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  transition: background var(--duration-normal) var(--ease-default);
}

.industry-card:hover .industry-card__overlay {
  background: linear-gradient(
    to top,
    rgba(47, 168, 160, 0.9) 0%,
    rgba(22, 58, 95, 0.4) 60%,
    rgba(22, 58, 95, 0.1) 100%
  );
}

.industry-card__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-amber);
  margin-bottom: var(--space-2);
}

.industry-card__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}

/* --- Feature Card (dark bg) --- */
.feature-card {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background-color: var(--color-navy-light);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--duration-normal) var(--ease-default);
}

.feature-card:hover {
  border-color: rgba(47, 168, 160, 0.3);
  background-color: rgba(19, 34, 64, 0.8);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-teal), var(--color-teal-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-white);
  font-size: var(--fs-lg);
}

.feature-card__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.feature-card__text {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--lh-relaxed);
}


/* ============================================================
   10. ICON GRID
   ============================================================ */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.icon-grid__item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.icon-grid__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-green-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal);
  font-size: var(--fs-lg);
}

.icon-grid__content h4 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-1);
}

.icon-grid__content p {
  font-size: var(--fs-sm);
  color: var(--color-steel);
  margin-bottom: 0;
}


/* ============================================================
   11. COMPARISON DIAGRAM
   ============================================================ */
.comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: stretch;
}

.comparison__side {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  position: relative;
}

.comparison__side--old {
  background-color: var(--color-stone);
  border: 1px solid var(--color-stone-dark);
}

.comparison__side--new {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-forest) 100%);
  border: 1px solid rgba(47, 168, 160, 0.3);
}

.comparison__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.comparison__side--old .comparison__label {
  background-color: rgba(167, 176, 183, 0.12);
  color: var(--color-steel);
}

.comparison__side--new .comparison__label {
  background-color: rgba(124, 203, 93, 0.15);
  color: var(--color-green);
}

.comparison__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-5);
}

.comparison__side--new .comparison__title {
  color: var(--color-white);
}

.comparison__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comparison__step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
}

.comparison__side--old .comparison__step {
  background-color: var(--color-white);
  color: var(--color-steel-dark);
}

.comparison__side--new .comparison__step {
  background-color: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
}

.comparison__step-num {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
}

.comparison__side--old .comparison__step-num {
  background-color: var(--color-stone);
  color: var(--color-steel);
}

.comparison__side--new .comparison__step-num {
  background: linear-gradient(135deg, var(--color-teal), var(--color-green));
  color: var(--color-white);
}

/* Arrow/VS indicator between sides */
.comparison__vs {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  font-weight: var(--fw-extrabold);
  color: var(--color-amber);
}


/* ============================================================
   12. DASHBOARD / DATA VISUALIZATION
   ============================================================ */
.dashboard {
  background-color: var(--color-navy);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.dashboard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dashboard__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
}

.dashboard__status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-green);
  font-weight: var(--fw-medium);
}

.dashboard__status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-green);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

/* KPI metric tiles */
.dashboard__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.metric-tile {
  padding: var(--space-4);
  background-color: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-tile__label {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  margin-bottom: var(--space-2);
}

.metric-tile__value {
  font-size: var(--fs-xl);
  font-weight: var(--fw-extrabold);
  color: var(--color-white);
}

.metric-tile__change {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  margin-top: var(--space-1);
}

.metric-tile__change--up {
  color: var(--color-green);
}

.metric-tile__change--down {
  color: var(--color-error);
}

/* Chart area placeholder */
.dashboard__chart {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(
    180deg,
    rgba(47, 168, 160, 0.1) 0%,
    rgba(124, 203, 93, 0.05) 100%
  );
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
  gap: var(--space-2);
}

.dashboard__bar {
  flex: 1;
  background: linear-gradient(to top, var(--color-teal), var(--color-green));
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  min-height: 10%;
  opacity: 0.7;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.dashboard__bar:hover {
  opacity: 1;
}

/* Flow visualization */
.dashboard__flow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  overflow-x: auto;
}

.flow-node {
  min-width: 100px;
  padding: var(--space-3) var(--space-4);
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(47, 168, 160, 0.3);
  text-align: center;
  flex-shrink: 0;
}

.flow-node__label {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.7);
  font-weight: var(--fw-medium);
}

.flow-node__value {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}

.flow-arrow {
  color: var(--color-teal);
  font-size: var(--fs-lg);
  flex-shrink: 0;
}


/* ============================================================
   13. TABS & ACCORDIONS
   ============================================================ */

/* --- Tabs --- */
.tabs {
  width: 100%;
}

.tabs__nav {
  display: flex;
  gap: var(--space-1);
  border-bottom: 2px solid var(--color-stone-dark);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs__nav::-webkit-scrollbar {
  display: none;
}

.tabs__trigger {
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-steel);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--duration-fast) var(--ease-default);
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tabs__trigger:hover {
  color: var(--color-navy);
}

.tabs__trigger.is-active {
  color: var(--color-teal);
  border-bottom-color: var(--color-teal);
}

.tabs__panel {
  display: none;
  padding: var(--space-8) 0;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

.tabs__panel.is-active {
  display: block;
}

/* --- Accordion --- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion__item {
  border: 1px solid var(--color-stone-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.accordion__item.is-open {
  border-color: var(--color-teal);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-navy);
  text-align: left;
  cursor: pointer;
  background-color: var(--color-white);
  transition: background-color var(--duration-fast) var(--ease-default);
}

.accordion__trigger:hover {
  background-color: var(--color-warm-white);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-steel);
  transition: transform var(--duration-normal) var(--ease-default);
}

.accordion__icon::before {
  width: 12px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion__icon::after {
  width: 2px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion__item.is-open .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-default);
}

.accordion__body {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--fs-sm);
  color: var(--color-steel-dark);
  line-height: var(--lh-relaxed);
}


/* ============================================================
   14. FORMS
   ============================================================ */
.form-group {
  position: relative;
  margin-bottom: var(--space-6);
}

/* Floating label input */
.form-input {
  width: 100%;
  padding: var(--space-5) var(--space-4) var(--space-2);
  font-size: var(--fs-base);
  color: var(--color-charcoal);
  background-color: var(--color-white);
  border: 1px solid var(--color-stone-dark);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
}

.form-input:focus {
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(47, 168, 160, 0.12);
}

.form-input::placeholder {
  color: transparent;
}

.form-label {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  transform: translateY(-50%);
  font-size: var(--fs-base);
  color: var(--color-steel);
  pointer-events: none;
  transition: all var(--duration-fast) var(--ease-default);
  background-color: transparent;
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: var(--space-2);
  transform: translateY(0);
  font-size: var(--fs-xs);
  color: var(--color-teal);
}

/* Textarea */
textarea.form-input {
  min-height: 140px;
  resize: vertical;
}

textarea.form-input ~ .form-label {
  top: var(--space-4);
  transform: translateY(0);
}

textarea.form-input:focus ~ .form-label,
textarea.form-input:not(:placeholder-shown) ~ .form-label {
  top: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-teal);
}

/* Select */
.form-select {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--fs-base);
  color: var(--color-charcoal);
  background-color: var(--color-white);
  border: 1px solid var(--color-stone-dark);
  border-radius: var(--radius-md);
  appearance: none;
  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='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.form-select:focus {
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(47, 168, 160, 0.12);
}

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  margin-bottom: var(--space-3);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  accent-color: var(--color-teal);
  margin-top: 2px;
}

.form-check__label {
  font-size: var(--fs-sm);
  color: var(--color-steel-dark);
  line-height: var(--lh-normal);
}

/* Dynamic form sections */
.form-section {
  display: none;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

.form-section.is-visible {
  display: block;
}

/* Form error state */
.form-input.is-error {
  border-color: var(--color-error);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

/* Form row for side-by-side fields */
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}


/* ============================================================
   15. FOOTER
   ============================================================ */
.footer {
  background-color: var(--color-navy);
  padding: var(--space-16) 0 var(--space-8);
  color: rgba(255, 255, 255, 0.6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer__brand p {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-5);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--duration-fast) var(--ease-default);
}

.footer__social-link:hover {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.footer__col-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  margin-bottom: var(--space-5);
}

.footer__links li {
  margin-bottom: var(--space-3);
}

.footer__links a {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer__links a:hover {
  color: var(--color-amber);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--fs-sm);
}

.footer__contact-icon {
  color: var(--color-teal);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--fs-xs);
}

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__legal-links a {
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer__legal-links a:hover {
  color: var(--color-white);
}

/* Certifications row in footer */
.footer__certifications {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer__cert-badge {
  height: 32px;
  opacity: 0.5;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.footer__cert-badge:hover {
  opacity: 1;
}


/* ============================================================
   16. ANIMATIONS & KEYFRAMES
   ============================================================ */

/* Fade-in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

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

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out),
              transform 0.5s var(--ease-out);
}

.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 100ms; }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 200ms; }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 300ms; }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: 400ms; }
.stagger-children.is-visible > *:nth-child(6) { transition-delay: 500ms; }

.stagger-children.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Counter animation — value set via JS */
.counter {
  font-variant-numeric: tabular-nums;
}

/* Pulse dot */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.5); }
}

/* Scroll line */
@keyframes scroll-line {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  40%  { opacity: 1; transform: scaleY(1); transform-origin: top; }
  60%  { opacity: 1; transform: scaleY(1); transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* Fade in */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Slide up */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Subtle parallax class — offset set via JS custom property */
.parallax {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-in,
  .fade-in-left,
  .fade-in-right {
    opacity: 1;
    transform: none;
  }

  .stagger-children > * {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}


/* ============================================================
   17. UTILITY CLASSES
   ============================================================ */

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

/* Text colors */
.text-navy    { color: var(--color-navy); }
.text-teal    { color: var(--color-teal); }
.text-amber   { color: var(--color-amber); }
.text-green   { color: var(--color-green); }
.text-steel   { color: var(--color-steel); }
.text-white   { color: var(--color-white); }

/* Font weight */
.fw-regular   { font-weight: var(--fw-regular); }
.fw-medium    { font-weight: var(--fw-medium); }
.fw-semibold  { font-weight: var(--fw-semibold); }
.fw-bold      { font-weight: var(--fw-bold); }

/* Spacing */
.mt-0  { margin-top: 0; }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mb-0  { margin-bottom: 0; }
.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); }
.mb-16 { margin-bottom: var(--space-16); }
.pt-0  { padding-top: 0; }
.pb-0  { padding-bottom: 0; }

/* Display */
.d-none    { display: none; }
.d-block   { display: block; }
.d-flex    { display: flex; }
.d-grid    { display: grid; }

/* Overflow */
.overflow-hidden { overflow: hidden; }

/* Width */
.w-full    { width: 100%; }
.max-w-sm  { max-width: 480px; }
.max-w-md  { max-width: 640px; }
.max-w-lg  { max-width: 800px; }

/* Position */
.relative  { position: relative; }

/* Rounded */
.rounded-lg  { border-radius: var(--radius-lg); }
.rounded-xl  { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow */
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Sticky CTA — mobile only */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-white);
  box-shadow: 0 -4px 20px rgba(22, 58, 95, 0.1);
  transform: translateY(100%);
  transition: transform var(--duration-normal) var(--ease-default);
}

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

.sticky-cta .btn {
  width: 100%;
}

/* Divider */
.divider {
  height: 1px;
  background-color: var(--color-stone-dark);
  border: none;
  margin: var(--space-8) 0;
}


/* ============================================================
   18. RESPONSIVE — TABLET (768px)
   ============================================================ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-8);
  }

  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-3xl); }
  h3 { font-size: var(--fs-2xl); }

  .section     { padding: var(--space-24) 0; }
  .section--lg { padding: var(--space-32) 0; }

  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .hero h1 {
    font-size: var(--fs-4xl);
  }

  .hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .comparison {
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-6);
  }

  .comparison__vs {
    writing-mode: vertical-lr;
    text-orientation: mixed;
  }

  .icon-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  .dashboard__metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}


/* ============================================================
   19. RESPONSIVE — DESKTOP (1024px)
   ============================================================ */
@media (min-width: 1024px) {
  h1 { font-size: var(--fs-5xl); }
  h2 { font-size: var(--fs-4xl); }

  .navbar__links {
    display: flex;
  }

  .navbar__toggle {
    display: none;
  }

  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }

  .hero h1 {
    font-size: var(--fs-5xl);
  }

  .hero--split .hero__content {
    flex-direction: row;
    align-items: center;
    gap: var(--space-16);
  }

  .hero--split .hero__text {
    flex: 1;
  }

  .hero--split .hero__visual {
    display: block;
    flex: 1;
  }

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

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
  }

  /* Hide sticky CTA on desktop */
  .sticky-cta {
    display: none;
  }
}


/* ============================================================
   20. RESPONSIVE — WIDE (1440px)
   ============================================================ */
@media (min-width: 1440px) {
  :root {
    --container-padding: var(--space-10);
  }

  h1 { font-size: var(--fs-6xl); }

  .hero h1 {
    font-size: var(--fs-6xl);
  }

  .icon-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .grid-4 {
    gap: var(--space-8);
  }
}