/* ========================================
   NC PACIFIC CONSULTING GROUP
   Main Stylesheet
   ======================================== */

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-primary: #0A3D62;
  --color-primary-dark: #072F4A;
  --color-primary-light: #1B6A9C;
  --color-accent: #D4383B;
  --color-accent-dark: #B12E31;
  --color-accent-light: #E85558;
  --color-gold: #C8A24E;
  --color-gold-light: #DDB96A;

  /* Backgrounds */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F7F8FA;
  --bg-tertiary: #EEF0F4;
  --bg-dark: #0F1419;
  --bg-card: #FFFFFF;

  /* Text */
  --text-primary: #1A1D23;
  --text-secondary: #4A5568;
  --text-tertiary: #718096;
  --text-inverse: #FFFFFF;
  --text-accent: var(--color-accent);

  /* Borders */
  --border-color: #E2E8F0;
  --border-color-light: #EDF2F7;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12);

  /* Typography */
  --font-primary: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-padding: 120px;
  --container-max: 1280px;

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0F1419;
  --bg-secondary: #1A1F27;
  --bg-tertiary: #242B35;
  --bg-card: #1A1F27;
  --text-primary: #F0F2F5;
  --text-secondary: #A0AEC0;
  --text-tertiary: #718096;
  --border-color: #2D3748;
  --border-color-light: #1E2533;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 72px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  gap: 8px;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 56, 59, 0.3);
}

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

.btn--white:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

.btn--lg {
  padding: 18px 40px;
  font-size: 16px;
  border-radius: 10px;
}

.btn--full {
  width: 100%;
}

/* ========================================
   HEADER
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-primary);
  transition: all var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: var(--bg-primary);
  border-bottom-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(15, 20, 25, 0.95);
  backdrop-filter: blur(12px);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 1px;
  text-decoration: none;
  gap: 2px;
}

.logo__nc {
  color: var(--text-primary);
}

.logo__comma {
  color: var(--color-accent);
  font-weight: 800;
  margin-right: 4px;
}

.logo__pacific {
  color: var(--color-primary);
  font-weight: 300;
  letter-spacing: 4px;
  font-size: 22px;
}

[data-theme="dark"] .logo__pacific {
  color: var(--color-primary-light);
}

/* Navigation */
.nav__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

/* Header Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
}

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.header__social {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  color: var(--text-tertiary);
  transition: all var(--transition);
}

.header__social a:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.header__cta {
  padding: 10px 24px;
  font-size: 14px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   HERO
   ======================================== */
.hero {
  padding: 160px 0 120px;
  background: var(--bg-primary);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero__title {
  font-size: clamp(36px, 4.5vw, 60px);
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero__visual {
  position: relative;
}

.hero__image-wrapper {
  position: relative;
}

.hero__gradient-bg {
  width: 100%;
  height: 420px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-accent) 100%);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}

.hero__gradient-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero__gradient-bg::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(212, 56, 59, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero__stats-card {
  position: absolute;
  bottom: -40px;
  left: 30px;
  right: 30px;
  background: var(--bg-card);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.stat {
  text-align: center;
  flex: 1;
}

.stat__number {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.stat__suffix {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
}

.stat__label {
  display: block;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 6px;
  font-weight: 500;
}

/* ========================================
   PILLARS / SERVICES
   ======================================== */
.pillars {
  padding: var(--section-padding) 0;
  background: var(--bg-secondary);
}

.pillars__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.pillar-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 40px 32px;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

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

.pillar-card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 14px;
  margin-bottom: 24px;
  color: #fff;
}

.pillar-card__title {
  font-size: 22px;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.pillar-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.pillar-card__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pillar-card__list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.pillar-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.6;
}

/* ========================================
   PACIFIC OS
   ======================================== */
.os-section {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.os-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.os-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 40px 32px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

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

.os-card__number {
  font-size: 80px;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.08;
  position: absolute;
  top: -10px;
  right: 16px;
  line-height: 1;
}

.os-card__title {
  font-size: 22px;
  margin-bottom: 12px;
  position: relative;
}

.os-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  position: relative;
}

.os-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
}

.os-card__features span {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  background: var(--bg-primary);
  color: var(--text-secondary);
  border-radius: 20px;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.os-card:hover .os-card__features span {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ========================================
   PROCESS
   ======================================== */
.process {
  padding: var(--section-padding) 0;
  background: var(--bg-dark);
  color: #fff;
}

.process .section-tag {
  color: var(--color-gold);
}

.process .section-title {
  color: #fff;
}

.process .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.process__timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-gold));
  opacity: 0.3;
}

.process__step {
  display: flex;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
}

.process__step:last-child {
  margin-bottom: 0;
}

.process__step-number {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  background: rgba(212, 56, 59, 0.1);
  border: 2px solid rgba(212, 56, 59, 0.3);
  border-radius: 16px;
  position: relative;
  z-index: 1;
}

.process__step-content h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: 8px;
}

.process__step-content p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ========================================
   CASE STUDIES
   ======================================== */
.case-studies {
  padding: var(--section-padding) 0;
  background: var(--bg-secondary);
}

.cases__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 40px;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

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

.case-card__tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-radius: 20px;
  margin-bottom: 16px;
}

.case-card__title {
  font-size: 22px;
  margin-bottom: 8px;
}

.case-card__result {
  font-size: 16px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.case-card__result strong {
  color: var(--color-accent);
}

.case-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.case-card__highlights {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-card__highlights li {
  font-size: 13px;
  color: var(--text-tertiary);
  padding-left: 18px;
  position: relative;
}

.case-card__highlights li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ========================================
   WHY US
   ======================================== */
.why-us {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-us__grid .why-card:nth-child(4) {
  grid-column: 1 / 2;
}

.why-us__grid .why-card:nth-child(5) {
  grid-column: 2 / 3;
}

.why-card {
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: all var(--transition);
}

.why-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.why-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--color-primary);
}

[data-theme="dark"] .why-card__icon {
  color: var(--color-primary-light);
}

.why-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.why-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========================================
   CTA BANNER
   ======================================== */
.cta-banner {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, #0A1628 100%);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 56, 59, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-banner__inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-banner p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   CONTACT
   ======================================== */
.contact {
  padding: var(--section-padding) 0;
  background: var(--bg-primary);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__info .section-tag {
  text-align: left;
}

.contact__info .section-title {
  text-align: left;
  font-size: clamp(28px, 3vw, 36px);
}

.contact__desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.contact__detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact__detail svg {
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--color-accent);
}

.contact__detail strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact__detail p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact__services h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
}

.contact__service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.contact__service-tags span {
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.contact__service-tags span:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Contact Form */
.contact__form-wrapper {
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 48px;
  border: 1px solid var(--border-color);
}

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

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-primary);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: all var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-tertiary);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(10, 61, 98, 0.1);
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 80px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo--footer .logo__nc {
  color: #fff;
}

.logo--footer .logo__pacific {
  color: rgba(255, 255, 255, 0.6);
}

.footer__tagline {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 16px;
  line-height: 1.6;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.5);
  transition: all var(--transition);
}

.footer__social a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer__col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col a,
.footer__col li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer__col a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}

.footer__bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

.footer__legal {
  display: flex;
  gap: 24px;
}

.footer__legal a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--transition);
}

.footer__legal a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

  .pillars__grid,
  .os-grid,
  .why-us__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-us__grid .why-card:nth-child(4),
  .why-us__grid .why-card:nth-child(5) {
    grid-column: auto;
  }

  .hero__inner {
    gap: 48px;
  }

  .contact__inner {
    gap: 48px;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
  }

  .header__social,
  .header__cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 999;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    gap: 4px;
  }

  .nav__link {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
  }

  .hero {
    padding: 120px 0 80px;
  }

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

  .hero__title {
    font-size: 36px;
  }

  .hero__stats-card {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin-top: 24px;
  }

  .pillars__grid,
  .os-grid,
  .cases__grid,
  .why-us__grid {
    grid-template-columns: 1fr;
  }

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

  .contact__form-wrapper {
    padding: 32px 24px;
  }

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

  .process__step {
    gap: 24px;
  }

  .process__step-number {
    width: 60px;
    height: 60px;
    font-size: 20px;
  }

  .process__timeline::before {
    left: 30px;
  }

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

  .footer__bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 30px;
  }

  .stat__number {
    font-size: 32px;
  }

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