/* ==========================================================================
   MarkOneAI — app.css
   Complete stylesheet for the MarkOneAI corporate website.
   Dark Tech Authority aesthetic. Sora + DM Sans. Blue energy on black.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. @font-face Declarations
   -------------------------------------------------------------------------- */

@font-face {
  font-family: 'Sora';
  src: url('/assets/fonts/Sora-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: url('/assets/fonts/Sora-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: url('/assets/fonts/Sora-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: url('/assets/fonts/Sora-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: url('/assets/fonts/Sora-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/DMSans-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/DMSans-Regular-Italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/DMSans-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/DMSans-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   1. :root Custom Properties
   -------------------------------------------------------------------------- */

:root {
  /* Colors */
  --black: #000000;
  --white: #FFFFFF;
  --blue: #2B5CC7;
  --blue-light: #4A7AE8;
  --blue-pale: #EBF0FD;
  --dark-gray: #1A1A1A;
  --gray-50: #F8F8F8;
  --gray-100: #F0F0F0;
  --gray-200: #DEDEDE;
  --gray-400: #AAAAAA;
  --gray-600: #666666;
  --gray-800: #222222;
  --theme-color: #030D1E;

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Transitions */
  --ease-spring: cubic-bezier(0.19, 1, 0.22, 1);
  --transition-fast: 200ms;
  --transition-base: 300ms;
  --transition-slow: 400ms;
}

/* --------------------------------------------------------------------------
   2. Reset / Base
   -------------------------------------------------------------------------- */

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

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

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--gray-800);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: var(--blue-light);
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

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

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Sora', sans-serif;
  line-height: 1.15;
}

h1 {
  font-size: 3.5rem;
  font-weight: 600;
  letter-spacing: -2px;
  color: var(--gray-800);
}

h2 {
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -1px;
  color: var(--gray-800);
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: var(--gray-800);
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.3px;
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

.caption {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8125rem;
  color: var(--gray-600);
  letter-spacing: 0.3px;
}

.label {
  font-family: 'Sora', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue);
}

strong, b {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section--dark {
  background-color: var(--black);
  color: var(--white);
}

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

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

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

/* --------------------------------------------------------------------------
   5. Components
   -------------------------------------------------------------------------- */

/* Logo */

.logo {
  font-family: 'Sora', sans-serif;
  font-weight: 300;
  letter-spacing: -2px;
  font-size: 1.5rem;
  color: var(--white);
  text-decoration: none;
  display: inline-block;
  line-height: 1;
}

.logo:hover {
  text-decoration: none;
}

.logo em {
  font-style: normal;
  font-weight: 700;
  color: var(--blue-light);
}

.logo--dark {
  color: var(--black);
}

.logo--dark em {
  color: var(--blue);
}

.logo--footer {
  font-size: 1.75rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--transition-base) var(--ease-spring);
  line-height: 1;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--blue);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--blue-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(43, 92, 199, 0.3);
}

.btn-primary:active {
  transform: scale(0.98) translateY(0);
  box-shadow: 0 4px 12px rgba(43, 92, 199, 0.2);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
}

.btn-outline:hover {
  border-color: var(--blue-light);
  color: var(--blue-light);
}

.btn-outline:active {
  transform: scale(0.98);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1rem;
}

/* Cards */

.card {
  background-color: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition-base) var(--ease-spring);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
  border-color: var(--blue);
}

.card-dark {
  background-color: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.card-dark > * {
  position: relative;
  z-index: 1;
}

.card-dark::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 100% 50%, rgba(43, 92, 199, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Visual Patterns */

.bg-grid {
  background-image:
    linear-gradient(rgba(43, 92, 199, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 92, 199, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}

.bg-circles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.bg-circles::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 92, 199, 0.2) 0%, transparent 70%);
}

.bg-circles::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 92, 199, 0.1) 0%, transparent 70%);
}

.accent-line {
  height: 2px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--blue-light) 50%, transparent 100%);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background-color: var(--blue-pale);
  color: var(--blue);
  font-family: 'Sora', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 100px;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   6. Navigation
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-slow);
}

.nav--scrolled {
  background: rgba(0, 0, 0, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.nav__links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav__link {
  color: rgba(255, 255, 255, 0.6);
  font-family: 'Sora', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.nav__link:hover {
  color: var(--white);
  text-decoration: none;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 8px;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  background-color: var(--blue);
  color: var(--white);
  text-decoration: none;
  transition: all var(--transition-base) var(--ease-spring);
  line-height: 1;
  white-space: nowrap;
}

.nav__cta:hover {
  background-color: var(--blue-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(43, 92, 199, 0.3);
  text-decoration: none;
}

.nav__cta:active {
  transform: scale(0.98) translateY(0);
}

/* Hamburger Toggle */

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--white);
  transition: all var(--transition-base) var(--ease-spring);
  transform-origin: center;
}

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

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

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

/* --------------------------------------------------------------------------
   7. Footer
   -------------------------------------------------------------------------- */

.footer {
  background-color: var(--black);
  padding: 80px 0 32px;
  color: rgba(255, 255, 255, 0.4);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.footer__heading {
  font-family: 'Sora', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
  margin-bottom: 16px;
}

.footer__nav a,
.footer__contact a {
  display: block;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9375rem;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__nav a:hover,
.footer__contact a:hover {
  color: var(--blue-light);
  text-decoration: none;
}

.footer__tagline {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.9375rem;
  margin-top: 12px;
}

.footer__bottom {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
}

.footer__bottom a:hover {
  color: var(--blue-light);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   8. Hero Section (S1)
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--black);
  overflow: hidden;
  padding-top: 100px;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero__overline {
  font-family: 'Sora', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 24px;
}

.hero__title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 200;
  color: var(--white);
  letter-spacing: -3px;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero__title strong,
.hero__title em {
  color: var(--blue-light);
  font-weight: 600;
  font-style: normal;
}

.hero__subtitle {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.5);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero background decorations */

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__line {
  position: absolute;
  width: 200%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(43, 92, 199, 0.15) 30%, rgba(43, 92, 199, 0.06) 70%, transparent 100%);
  transform-origin: center;
}

.hero__line--1 {
  top: 35%;
  left: -20%;
  transform: rotate(-12deg);
}

.hero__line--2 {
  top: 65%;
  left: -20%;
  transform: rotate(-8deg);
}

/* --------------------------------------------------------------------------
   9. Pain Points Section (S2)
   -------------------------------------------------------------------------- */

.pain-points {
  background-color: var(--white);
}

.pain-points__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.pain-item {
  padding: 8px 0;
}

.pain-item__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--blue);
  margin-bottom: 20px;
  font-family: 'Sora', sans-serif;
  font-weight: 300;
  line-height: 1;
}

.pain-item__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.pain-item__desc {
  font-family: 'DM Sans', sans-serif;
  color: var(--gray-600);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   10. Solution Section (S3)
   -------------------------------------------------------------------------- */

.solution {
  background-color: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.solution__inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.solution__accent {
  height: 2px;
  width: 80px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--blue-light) 100%);
  margin: 0 auto 40px;
}

.solution__text {
  font-family: 'Sora', sans-serif;
  font-weight: 300;
  font-size: 2rem;
  color: var(--white);
  line-height: 1.5;
  letter-spacing: -0.5px;
}

.solution__text strong,
.solution__text em {
  color: var(--blue-light);
  font-weight: 500;
  font-style: normal;
}

/* --------------------------------------------------------------------------
   11. Services Grid (S4)
   -------------------------------------------------------------------------- */

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

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.service-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition-base) var(--ease-spring);
  border-left: 3px solid transparent;
  position: relative;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
  border-left-color: var(--blue);
}

.service-card .badge {
  margin-bottom: 20px;
}

.service-card__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.5px;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.service-card__desc {
  color: var(--gray-600);
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-card__link {
  font-family: 'Sora', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-base) var(--ease-spring);
  text-decoration: none;
}

.service-card__link:hover {
  gap: 12px;
  color: var(--blue-light);
  text-decoration: none;
}

.service-card__link::after {
  content: '\2192';
}

/* --------------------------------------------------------------------------
   12. Methodology (S5)
   -------------------------------------------------------------------------- */

.methodology {
  background-color: var(--white);
}

.methodology__steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
  padding-left: 56px;
}

/* Vertical timeline line (mobile) */
.methodology__steps::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 19px;
  width: 2px;
  height: calc(100% - 40px);
  background-color: var(--gray-200);
}

.method-step {
  position: relative;
}

.method-step__number {
  position: absolute;
  left: -56px;
  top: 0;
  width: 40px;
  height: 40px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--blue);
  background-color: var(--white);
  z-index: 2;
}

.method-step__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.3px;
  color: var(--gray-800);
  margin-bottom: 8px;
  padding-top: 8px;
}

.method-step__desc {
  color: var(--gray-600);
  line-height: 1.7;
  max-width: 480px;
}

/* --------------------------------------------------------------------------
   13. Case Study (S6)
   -------------------------------------------------------------------------- */

.case-study {
  background-color: var(--black);
  color: var(--white);
}

.case-study__card {
  background-color: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-left: 3px solid var(--blue);
  border-radius: 12px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}

.case-study__card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at 100% 50%, rgba(43, 92, 199, 0.08), transparent 70%);
  pointer-events: none;
}

.case-study__badge {
  margin-bottom: 24px;
}

.case-study__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -1px;
  color: var(--white);
  margin-bottom: 16px;
}

.case-study__desc {
  color: rgba(255, 255, 255, 0.5);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.case-study__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.case-study__stat {
  padding: 8px 0;
}

.case-study__stat-number {
  font-family: 'Sora', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--blue-light);
  letter-spacing: -1px;
  line-height: 1.2;
}

.case-study__stat-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   14. Differentiators Table (S7)
   -------------------------------------------------------------------------- */

.differentiators {
  background-color: var(--white);
}

.diff-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'DM Sans', sans-serif;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--gray-200);
}

.diff-table__wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
}

.diff-table thead th {
  font-family: 'Sora', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 18px 24px;
  text-align: left;
  background-color: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

.diff-table thead th:first-child {
  min-width: 200px;
}

.diff-table tbody tr {
  border-bottom: 1px solid var(--gray-200);
}

.diff-table tbody tr:nth-child(even) {
  background-color: var(--gray-50);
}

.diff-table tbody tr:last-child {
  border-bottom: none;
}

.diff-table tbody td {
  padding: 16px 24px;
  font-size: 0.9375rem;
  vertical-align: middle;
}

.diff-table tbody td:first-child {
  font-weight: 500;
  color: var(--gray-800);
}

.diff-check {
  color: #1A7A45;
  font-size: 1.125rem;
  font-weight: 700;
}

.diff-cross {
  color: var(--gray-400);
  font-size: 1.125rem;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   15. Trust Bar (S8)
   -------------------------------------------------------------------------- */

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

.trust__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.trust__logo {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  font-family: 'Sora', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-400);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background-color: var(--white);
  transition: all var(--transition-base) var(--ease-spring);
  letter-spacing: 0.5px;
}

.trust__logo:hover {
  color: var(--blue);
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(43, 92, 199, 0.1);
}

.trust__stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 48px;
}

.trust__stat {
  text-align: center;
}

.trust__stat-number {
  font-family: 'Sora', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -1px;
  line-height: 1.2;
}

.trust__stat-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   16. Final CTA (S9)
   -------------------------------------------------------------------------- */

.cta-final {
  background-color: var(--black);
  color: var(--white);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.cta-final__inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-final__title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--white);
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.cta-final__subtitle {
  color: rgba(255, 255, 255, 0.45);
  font-size: 1.125rem;
  max-width: 520px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   17. Contact Form
   -------------------------------------------------------------------------- */

.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

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

.form-label {
  display: block;
  font-family: 'Sora', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Dark variant (default for dark sections) */
.section--dark .form-label,
.cta-final .form-label {
  color: rgba(255, 255, 255, 0.4);
}

/* Light variant */
.form-label {
  color: var(--gray-600);
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  background-color: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  color: var(--gray-800);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  line-height: 1.5;
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-input:focus {
  border-color: var(--blue-light);
  outline: none;
  box-shadow: 0 0 0 3px rgba(74, 122, 232, 0.15);
}

/* Dark variant for form inputs */
.section--dark .form-input,
.cta-final .form-input {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.section--dark .form-input::placeholder,
.cta-final .form-input::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.section--dark .form-input:focus,
.cta-final .form-input:focus {
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(74, 122, 232, 0.15);
}

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

.form-error {
  font-size: 0.75rem;
  color: #e74c3c;
  margin-top: 4px;
}

.form-hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

.form-message {
  padding: 16px;
  border-radius: 8px;
  margin-top: 16px;
  text-align: center;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9375rem;
}

.form-message--success {
  background: rgba(26, 122, 69, 0.1);
  color: #1A7A45;
  border: 1px solid rgba(26, 122, 69, 0.2);
}

.form-message--error {
  background: rgba(176, 42, 42, 0.1);
  color: #B02A2A;
  border: 1px solid rgba(176, 42, 42, 0.2);
}

/* --------------------------------------------------------------------------
   18. Contact Page
   -------------------------------------------------------------------------- */

.page-contacto {
  padding-top: 160px;
}

.page-contacto__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: flex-start;
}

.page-contacto__info {
  padding: 32px 0;
}

.page-contacto__info h2 {
  margin-bottom: 16px;
}

.page-contacto__info p {
  color: var(--gray-600);
  margin-bottom: 32px;
}

.page-contacto__detail {
  margin-bottom: 24px;
}

.page-contacto__detail-label {
  font-family: 'Sora', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 4px;
}

.page-contacto__detail-value {
  font-size: 1.0625rem;
  color: var(--gray-800);
}

.page-contacto__detail-value a {
  color: var(--blue);
}

.page-contacto__detail-value a:hover {
  color: var(--blue-light);
}

/* --------------------------------------------------------------------------
   19. Error 404
   -------------------------------------------------------------------------- */

.error-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding-top: 120px;
  text-align: center;
  padding: 40px 24px;
}

.error-404__code {
  font-family: 'Sora', sans-serif;
  font-size: 8rem;
  font-weight: 200;
  color: var(--gray-200);
  line-height: 1;
  letter-spacing: -4px;
}

.error-404__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-top: 16px;
  margin-bottom: 12px;
}

.error-404__message {
  color: var(--gray-600);
  max-width: 400px;
  margin-bottom: 32px;
}

.error-404__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--blue);
  text-decoration: none;
  transition: gap var(--transition-base) var(--ease-spring);
}

.error-404__link:hover {
  gap: 12px;
  color: var(--blue-light);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   20. Inner Pages (Services, Methodology, Cases, About)
   -------------------------------------------------------------------------- */

.inner-hero {
  position: relative;
  padding: 200px 0 80px;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
}

.inner-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 200;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--white);
  max-width: 700px;
  margin-bottom: 20px;
}

.inner-hero__title em {
  font-style: normal;
  font-weight: 600;
  color: var(--blue-light);
}

.inner-hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.5);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.inner-hero .badge {
  margin-bottom: 20px;
}

/* Case cards (casos-de-uso) */
.case-card {
  padding: 36px;
}

.case-card__badge {
  margin-bottom: 24px;
}

.case-card__title {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--white);
  margin-bottom: 16px;
}

.case-card__desc {
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 32px;
  font-size: 0.9375rem;
}

.case-card__stats {
  margin-bottom: 32px;
}

/* Service card as link */
.service-card--link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.service-card--link:hover {
  text-decoration: none;
  color: inherit;
}

/* Feature cards */
.feature-card {
  position: relative;
  padding: 28px 28px 28px 44px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  transition: all 300ms var(--ease-spring);
}

.feature-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.feature-card__marker {
  position: absolute;
  left: 20px;
  top: 34px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
}

.feature-card__title {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* Process steps */
.process-steps {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-200);
}

.process-step:last-child {
  border-bottom: none;
}

.process-step__number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--blue);
}

.process-step__text {
  font-size: 1.0625rem;
  color: var(--gray-800);
  padding-top: 6px;
}

/* Inner hero compact (blog article) */
.inner-hero--compact {
  padding: 200px 0 48px;
}

/* Blog */
.blog-empty {
  text-align: center;
  padding: 80px 0;
}

.blog-empty h2 {
  margin-bottom: 12px;
}

.blog-empty p {
  color: var(--gray-600);
  max-width: 480px;
  margin: 0 auto;
}

.blog-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: all 300ms var(--ease-spring);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
  border-color: var(--blue);
  text-decoration: none;
  color: inherit;
}

.blog-card__body {
  padding: 28px;
}

.blog-card__date {
  font-family: 'Sora', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-400);
  letter-spacing: 0.5px;
}

.blog-card__title {
  font-size: 1.25rem;
  margin: 10px 0;
  line-height: 1.3;
}

.blog-card__excerpt {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-card__link {
  font-family: 'Sora', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
}

.blog-back {
  display: inline-block;
  font-family: 'Sora', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  margin-bottom: 24px;
  transition: color 200ms;
}

.blog-back:hover {
  color: var(--blue-light);
  text-decoration: none;
}

.blog-date {
  display: block;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 16px;
}

.blog-article {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--gray-800);
}

.blog-article h2 {
  margin: 48px 0 16px;
}

.blog-article h3 {
  margin: 32px 0 12px;
}

.blog-article p {
  margin-bottom: 20px;
}

.blog-article ul,
.blog-article ol {
  margin: 0 0 20px 24px;
}

.blog-article li {
  margin-bottom: 8px;
}

.blog-article blockquote {
  border-left: 3px solid var(--blue);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--gray-50);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--gray-600);
}

.blog-article code {
  background: var(--gray-50);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9375rem;
}

.blog-article pre {
  background: var(--black);
  color: var(--gray-200);
  padding: 24px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 24px 0;
}

.blog-article pre code {
  background: none;
  padding: 0;
}

.blog-article img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 24px 0;
}

/* --------------------------------------------------------------------------
   21. Animations
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 600ms var(--ease-spring),
    transform 600ms var(--ease-spring);
  transition-delay: var(--delay, 0ms);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity 600ms var(--ease-spring),
    transform 600ms var(--ease-spring);
  transition-delay: var(--delay, 0ms);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition:
    opacity 600ms var(--ease-spring),
    transform 600ms var(--ease-spring);
  transition-delay: var(--delay, 0ms);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-left,
  .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --------------------------------------------------------------------------
   21. Responsive
   -------------------------------------------------------------------------- */

/* ---- Tablet (768px+) ---- */

@media (min-width: 768px) {
  .container {
    padding: 0 48px;
  }

  .section {
    padding: 96px 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);
  }

  /* Nav: hide toggle, show links inline */
  .nav__toggle {
    display: none;
  }

  .nav__links {
    display: flex;
    flex-direction: row;
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    transform: none;
    gap: 32px;
    padding: 0;
  }

  /* Pain points */
  .pain-points__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Services */
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Case study stats */
  .case-study__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Form */
  .form-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Contact page */
  .page-contacto__grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

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

  /* Methodology: horizontal timeline */
  .methodology__steps {
    flex-direction: row;
    padding-left: 0;
    gap: 0;
    justify-content: space-between;
    padding-top: 64px;
    position: relative;
  }

  .methodology__steps::before {
    top: 83px;
    left: 20px;
    width: calc(100% - 40px);
    height: 2px;
  }

  .method-step {
    flex: 1;
    text-align: center;
    max-width: 180px;
  }

  .method-step__number {
    position: relative;
    left: auto;
    top: auto;
    margin: 0 auto 16px;
  }

  .method-step__title {
    padding-top: 0;
  }

  .method-step__desc {
    max-width: none;
    font-size: 0.9375rem;
  }
}

/* Mobile overlay (below 768px) */

@media (max-width: 767px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: rgba(0, 0, 0, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    transform: translateX(100%);
    transition: transform var(--transition-slow) var(--ease-spring);
    z-index: 1000;
  }

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

  .nav__link {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
  }

  .nav__cta {
    padding: 14px 32px;
    font-size: 1rem;
  }
}

/* ---- Desktop (1024px+) ---- */

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

  /* Pain points */
  .pain-points__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Hero */
  .hero {
    padding-top: 0;
  }

  .hero__title {
    letter-spacing: -3px;
  }

  /* Case study card */
  .case-study__card {
    padding: 56px;
  }

  /* CTA */
  .cta-final {
    padding: 160px 0;
  }

  /* Methodology step text */
  .method-step {
    max-width: 200px;
  }
}

/* ---- Wide (1200px+) ---- */

@media (min-width: 1200px) {
  h1 {
    font-size: 3.5rem;
  }

  .container {
    padding: 0 48px;
  }

  /* Services grid wider gap */
  .services__grid {
    gap: 40px;
  }

  /* Trust bar larger gap */
  .trust__logos {
    gap: 20px;
  }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */

.text-center {
  text-align: center;
}

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

.text-blue {
  color: var(--blue-light);
}

.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.mb-64 { margin-bottom: 64px; }

.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

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

.relative {
  position: relative;
}

.overflow-hidden {
  overflow: hidden;
}