/* ============================================
   Leithen Lane — Design System & Styles
   E-commerce Operations Consultancy
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors — Blue & Purple Palette */
  --color-primary: #4A3B8F;
  --color-primary-light: #6355A4;
  --color-primary-dark: #362B6E;
  --color-primary-rgb: 74, 59, 143;
  --color-secondary: #3B82C4;
  --color-secondary-light: #5A9BD5;
  --color-bg: #F8F9FC;
  --color-surface: #FFFFFF;
  --color-text: #1A1A2E;
  --color-text-secondary: #4A4A68;
  --color-text-muted: #7E7E9A;
  --color-border: #E2E0F0;
  --color-accent: #EEEAFF;
  --color-accent-warm: #EAF0FF;
  --color-hero-bg: #F0EDF8;
  --color-error: #C0392B;
  --color-success: #27AE60;

  /* Typography */
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;

  /* Effects */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.05);
  --transition: 250ms ease;
  --transition-slow: 400ms ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

.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;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background-color: var(--color-surface);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-muted);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: #FFFFFF;
}

.btn--primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.3);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.2);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

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

.btn svg {
  width: 18px;
  height: 18px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 249, 252, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.nav--scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(248, 249, 252, 0.95);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.nav__logo span {
  color: var(--color-secondary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
  cursor: pointer;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
}

.nav__link:hover::after {
  width: 100%;
}

/* Active nav link (scroll spy) */
.nav__link--active {
  color: var(--color-primary);
}

.nav__link--active::after {
  width: 100%;
}

.nav__cta {
  padding: 10px 24px;
  font-size: 0.85rem;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-text);
}

.nav__toggle svg {
  width: 24px;
  height: 24px;
}

/* --- Hero --- */
.hero {
  padding-top: 160px;
  padding-bottom: var(--space-4xl);
  background: linear-gradient(180deg, var(--color-hero-bg) 0%, var(--color-bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 196, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero__content--centred {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero__content--centred .hero__label {
  margin-left: auto;
  margin-right: auto;
}

.hero__content--centred .hero__description {
  margin-left: auto;
  margin-right: auto;
}

.hero__content--centred .hero__actions {
  justify-content: center;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: fadeUp 600ms ease forwards 200ms;
}

.hero__label svg {
  width: 16px;
  height: 16px;
}

.hero__title {
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeUp 600ms ease forwards 400ms;
}

.hero__title em {
  color: var(--color-primary);
  font-style: italic;
}

.hero__description {
  font-size: 1.15rem;
  max-width: 560px;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeUp 600ms ease forwards 600ms;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  opacity: 0;
  animation: fadeUp 600ms ease forwards 800ms;
}

/* Hero Visual Cards */
.hero__visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeUp 600ms ease forwards 700ms;
}

.hero__visual-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.hero__visual-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.hero__visual-card--1 {
  animation: slideInRight 600ms ease forwards 900ms;
  opacity: 0;
  transform: translateX(20px);
}

.hero__visual-card--2 {
  animation: slideInRight 600ms ease forwards 1050ms;
  opacity: 0;
  transform: translateX(20px);
  margin-left: var(--space-xl);
}

.hero__visual-card--3 {
  animation: slideInRight 600ms ease forwards 1200ms;
  opacity: 0;
  transform: translateX(20px);
}

.hero__visual-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-warm);
  border-radius: var(--radius-sm);
  color: var(--color-secondary);
  flex-shrink: 0;
}

.hero__visual-icon--green {
  background: var(--color-accent);
  color: var(--color-primary);
}

.hero__visual-icon--gold {
  background: var(--color-accent-warm);
  color: var(--color-secondary);
}

.hero__visual-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__visual-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--color-text);
  line-height: 1.2;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  opacity: 0;
  animation: fadeUp 600ms ease forwards 800ms;
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.hero__trust-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Pain Points / Problem Section --- */
.problems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.problem-card {
  padding: var(--space-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: default;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-secondary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.problem-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.problem-card:hover::before {
  transform: scaleX(1);
}

.problem-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-warm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  color: var(--color-secondary);
}

.problem-card__icon svg {
  width: 24px;
  height: 24px;
}

.problem-card__title {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.problem-card__text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* --- About --- */
.about__content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about__image-wrap {
  position: relative;
}

.about__image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background: var(--color-accent);
}

.about__image-accent {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  padding: var(--space-md);
}

.about__image-accent-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  display: block;
  line-height: 1;
}

.about__image-accent-text {
  font-size: 0.75rem;
  font-weight: 500;
  display: block;
  margin-top: var(--space-xs);
  opacity: 0.9;
}

.about__text h2 {
  margin-bottom: var(--space-lg);
}

.about__intro {
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.about__body {
  margin-bottom: var(--space-xl);
}

.about__body p {
  margin-bottom: var(--space-md);
}

.about__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.about__credential {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-primary);
}

.about__credential svg {
  width: 14px;
  height: 14px;
}

/* --- Tools & Platforms Logo Grid --- */
.tools-section {
  padding: var(--space-3xl) 0;
}

.tools__grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.tool-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  transition: all var(--transition);
  cursor: default;
}

.tool-logo:hover {
  color: var(--color-primary);
  transform: translateY(-2px);
}

.tool-logo svg {
  width: 36px;
  height: 36px;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.tool-logo:hover svg {
  opacity: 0.8;
}

.tool-logo span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.service-card {
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: default;
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card__header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.service-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  flex-shrink: 0;
}

.service-card__icon svg {
  width: 22px;
  height: 22px;
}

.service-card__title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  padding-top: var(--space-sm);
}

.service-card__text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.service-card__list {
  padding-left: 0;
}

.service-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* --- Process --- */
.process__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.process__steps::before {
  content: '';
  position: absolute;
  top: 44px;
  left: calc(16.67% + 20px);
  right: calc(16.67% + 20px);
  height: 2px;
  background: var(--color-border);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step__number {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  background: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  border-radius: 50%;
  position: relative;
  z-index: 2;
}

.process-step__title {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.process-step__text {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  max-width: 280px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-primary);
  color: #FFFFFF;
  text-align: center;
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
}

.cta-banner__content {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: #FFFFFF;
  margin-bottom: var(--space-md);
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

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

.btn--white:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* --- Contact Form --- */
.contact {
  background: var(--color-surface);
}

.contact__content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact__info h2 {
  margin-bottom: var(--space-md);
}

.contact__info > p {
  margin-bottom: var(--space-xl);
  font-size: 1.05rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact__detail-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact__detail-icon svg {
  width: 20px;
  height: 20px;
}

.contact__detail-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact__detail-value {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact__detail-value a {
  color: var(--color-primary);
  transition: color var(--transition);
}

.contact__detail-value a:hover {
  color: var(--color-primary-light);
}

/* Form */
.form {
  background: var(--color-bg);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form__group {
  margin-bottom: var(--space-md);
  position: relative;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form__label .optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-muted);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

/* Form error states */
.form__error {
  display: none;
  font-size: 0.78rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
  font-weight: 500;
}

.form__group--error .form__input,
.form__group--error .form__textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.08);
}

.form__group--error .form__error {
  display: block;
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__submit {
  width: 100%;
  margin-top: var(--space-sm);
}

.form__note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}

/* Form success state */
.form__success {
  display: none;
  text-align: center;
  padding: var(--space-2xl);
}

.form__success.is-visible {
  display: block;
  animation: fadeUp 400ms ease forwards;
}

.form__success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  border-radius: 50%;
  color: var(--color-primary);
}

.form__success-icon svg {
  width: 32px;
  height: 32px;
}

.form__success h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.form__success p {
  color: var(--color-text-secondary);
}

/* --- Footer --- */
.footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--space-xl);
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: #FFFFFF;
}

.footer__logo span {
  color: var(--color-secondary);
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
}

.footer__link {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
  cursor: pointer;
}

.footer__link:hover {
  color: #FFFFFF;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}

.footer__email a {
  color: var(--color-secondary);
  transition: color var(--transition);
}

.footer__email a:hover {
  color: var(--color-secondary-light);
}

/* --- Sticky Mobile CTA --- */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  padding: var(--space-md);
  background: rgba(248, 249, 252, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

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

.mobile-cta__btn {
  width: 100%;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal-stagger.is-visible > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0ms; }
.reveal-stagger.is-visible > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 100ms; }
.reveal-stagger.is-visible > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 200ms; }
.reveal-stagger.is-visible > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 300ms; }

/* --- Keyframes --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* --- Mobile Responsive --- */
@media (max-width: 1024px) {
  .section {
    padding: var(--space-3xl) 0;
  }

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

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

  .about__image-wrap {
    max-width: 400px;
  }

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

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

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: var(--space-2xl);
    gap: var(--space-lg);
    background: rgba(248, 249, 252, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__cta {
    margin-top: var(--space-md);
  }

  .nav__toggle {
    display: block;
  }

  .hero {
    padding-top: 120px;
    padding-bottom: var(--space-3xl);
  }

  .hero__trust {
    flex-direction: column;
    gap: var(--space-md);
  }

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

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

  .process__steps::before {
    display: none;
  }

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

  .footer__inner {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  /* Show sticky mobile CTA */
  .mobile-cta {
    display: block;
  }

  /* Extra padding at bottom for sticky CTA */
  .footer {
    padding-bottom: 100px;
  }

  .tools__grid {
    gap: var(--space-xl);
  }
}

@media (max-width: 375px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}