/* =================================
   LEFTHAND SOCIAL - STYLES
   ================================= */

/* --- CSS Variables --- */
:root {
  /* Colors - Clean black & white with accent */
  --color-dark: #1a1a1a;
  --color-dark-light: #2d2d2d;
  --color-cream: #ffffff;
  --color-cream-dark: #f5f5f5;
  --color-white: #ffffff;
  --color-gray: #555555;
  --color-gray-light: #888888;
  --color-accent: #89a250;
  --color-accent-secondary: #9d1b59;

  /* Typography */
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 8rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.6s ease;

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-dark);
  background-color: transparent;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray);
}

.text-large {
  font-size: 1.25rem;
  line-height: 1.8;
}

.text-small {
  font-size: 0.875rem;
}

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

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

.section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-white);
  position: relative;
  z-index: 1;
}

.section-large {
  padding: var(--spacing-xxl) 0;
  position: relative;
  z-index: 1;
}

/* --- Transparent Section (over video) --- */
.section-transparent {
  background-color: transparent;
  z-index: 0;
}

.section-transparent h2,
.section-transparent h3 {
  color: var(--color-cream);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.section-transparent p {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.section-transparent .about-image img {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

/* --- Dark Section --- */
.section-dark {
  background-color: var(--color-dark);
  color: var(--color-cream);
  position: relative;
  z-index: 1;
}

.section-dark p {
  color: var(--color-gray-light);
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: var(--transition-medium);
}

.nav.scrolled {
  background-color: var(--color-cream);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav.scrolled .nav-logo img {
  filter: none;
}

.nav.scrolled .nav-toggle span {
  background-color: var(--color-dark);
}

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

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 50px;
  width: auto;
  filter: brightness(0) invert(1);
}

.nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

.nav-social {
  display: flex;
  gap: var(--spacing-sm);
}

.nav-social a {
  font-size: 1.2rem;
  color: var(--color-dark);
}

.nav-social a:hover {
  opacity: 0.6;
}

.nav-links {
  position: fixed;
  top: 0;
  right: -50%;
  width: 50%;
  height: 100vh;
  background-color: var(--color-cream);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  transition: var(--transition-medium);
  z-index: 999;
  box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
}

.nav-links.active {
  right: 0;
}

.nav-link {
  font-size: 2rem;
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: 0.02em;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-dark);
  transition: var(--transition-fast);
}

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

/* Menu Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  margin-right: -10px;
  z-index: 1001;
  position: relative;
}

.nav-toggle span {
  width: 28px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
}

.hero-tagline {
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: var(--spacing-md);
}

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero-description {
  font-size: 1.25rem;
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
}

/* Hero Video Background (Fixed/Anchored) */
.hero-video {
  position: relative;
  overflow: visible;
}

.hero-video-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  object-fit: cover;
  filter: grayscale(100%) contrast(2);
}

.hero-image-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  object-fit: cover;
  filter: grayscale(100%) contrast(0.76) brightness(1.19);
}

.hero-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 26, 26, 0.78);
  z-index: -1;
}

.hero-video .hero-content {
  color: var(--color-cream);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-video h1 {
  color: var(--color-cream);
}

.hero-video .hero-description {
  color: rgba(255, 255, 255, 0.9);
}

.hero-video .hero-tagline {
  color: rgba(255, 255, 255, 0.8);
}

/* CTA Section (shows fixed video behind) */
.cta-video {
  position: relative;
  background: transparent;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(26, 26, 26, 0.78);
  z-index: 0;
}

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

.cta-video h2,
.cta-video h3,
.cta-video h4,
.cta-video p {
  color: var(--color-cream);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.cta-video .text-large {
  color: rgba(255, 255, 255, 0.9);
}

.cta-video .grid p {
  color: rgba(255, 255, 255, 0.8);
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

.btn-primary:hover {
  background-color: var(--color-dark-light);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-dark);
  border: 1px solid var(--color-dark);
}

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

.btn-light {
  background-color: var(--color-cream);
  color: var(--color-dark);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-light:hover {
  background-color: var(--color-white);
  transform: translateY(-2px);
}

/* --- Grid --- */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

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

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

/* --- Cards --- */
.card {
  background-color: var(--color-white);
  padding: var(--spacing-md);
  transition: var(--transition-medium);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-image {
  width: 100%;
  height: 250px;
  background-color: var(--color-cream-dark);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-medium);
}

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

.card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.card p {
  font-size: 0.9rem;
}

/* --- Services --- */
.service-item {
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.service-item:last-child {
  border-bottom: none;
}

.service-number {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--color-gray-light);
  margin-bottom: var(--spacing-sm);
}

.service-item h3 {
  margin-bottom: var(--spacing-sm);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-image {
  width: 100%;
  height: 500px;
  background-color: var(--color-cream-dark);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Portfolio Grid --- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  background-color: var(--color-cream-dark);
  aspect-ratio: 4/3;
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-medium);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(26, 26, 26, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition-medium);
  padding: var(--spacing-md);
  text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

.portfolio-overlay h3 {
  color: var(--color-cream);
  margin-bottom: var(--spacing-xs);
}

.portfolio-overlay p {
  color: var(--color-gray-light);
  font-size: 0.9rem;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xs);
  color: var(--color-dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: var(--color-white);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-dark);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-dark);
  color: var(--color-cream);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  margin-bottom: var(--spacing-sm);
}

.footer-logo img {
  height: 80px;
  width: auto;
}

.footer-description {
  color: var(--color-gray-light);
  max-width: 300px;
}

.footer h4 {
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
  color: var(--color-cream);
}

.footer-links a {
  display: block;
  color: var(--color-gray-light);
  padding: var(--spacing-xs) 0;
}

.footer-links a:hover {
  color: var(--color-cream);
}

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

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-gray-light);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  color: var(--color-gray-light);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.footer-social a:hover {
  color: var(--color-cream);
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .about-image {
    height: 400px;
  }

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

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

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

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

  .section-large {
    padding: var(--spacing-xl) 0;
  }

  /* Mobile Navigation */
  .nav-logo img {
    height: 40px;
  }

  .nav-social {
    display: none;
  }

  .nav-link {
    font-size: 1.5rem;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

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

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

  .hero {
    min-height: auto;
    padding-top: 120px;
    padding-bottom: var(--spacing-xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

/* --- Utility Classes --- */
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* Black & White Images */
.grayscale {
  filter: grayscale(100%);
}

/* --- Portfolio Enhancements --- */
.portfolio-cta {
  margin-top: var(--spacing-sm);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-cream);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.portfolio-item:hover .portfolio-cta {
  opacity: 1;
  background-color: var(--color-cream);
  color: var(--color-dark);
}

.portfolio-item-cta {
  background-color: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Case Study Modal --- */
.case-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background-color: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-medium);
  overflow-y: auto;
}

.case-modal.active {
  opacity: 1;
  visibility: visible;
}

.case-modal-content {
  background-color: var(--color-cream);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: var(--transition-medium);
}

.case-modal.active .case-modal-content {
  transform: translateY(0);
}

.case-modal-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--color-dark);
  color: var(--color-cream);
  border: none;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.case-modal-close:hover {
  background: var(--color-dark-light);
}

.case-modal-header {
  position: relative;
  height: 300px;
  overflow: hidden;
}

.case-modal-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%);
}

.case-modal-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  background: linear-gradient(transparent, rgba(26, 26, 26, 0.95));
  color: var(--color-cream);
}

.case-modal-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.7;
}

.case-modal-title h2 {
  color: var(--color-cream);
  margin-bottom: 0.25rem;
}

.case-modal-title p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.case-modal-body {
  padding: var(--spacing-lg);
}

.case-modal-story h3 {
  font-size: 1.1rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  color: var(--color-dark);
}

.case-modal-story h3:first-child {
  margin-top: 0;
}

.case-modal-story p {
  line-height: 1.8;
}

.case-modal-metrics {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.case-modal-metrics h3 {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.case-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.case-metric {
  text-align: center;
  padding: var(--spacing-sm);
  background: var(--color-dark);
  color: var(--color-cream);
}

.case-metric-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.2;
}

.case-metric-label {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-top: 0.25rem;
}

.case-modal-services {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.case-modal-services h3 {
  margin-bottom: var(--spacing-sm);
}

.case-services-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.case-service-tag {
  padding: 0.4rem 0.8rem;
  background: var(--color-cream-dark);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .case-modal-header {
    height: 200px;
  }

  .case-modal-body {
    padding: var(--spacing-md);
  }

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

  .case-metric-value {
    font-size: 1.4rem;
  }
}