/* ========================================
   FINISH LAB — Styles
   ======================================== */

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

:root {
  --color-bg: #fafafa;
  --color-text: #1a1a1a;
  --color-text-light: #666;
  --color-primary: #2a2a2a;
  --color-accent: #4a4a4a;
  --color-border: #e0e0e0;
  --color-white: #ffffff;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.3s ease;
  --max-width: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 250, 250, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.logo span {
  font-weight: 300;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-light);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

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

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

.nav-cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-accent);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
  margin-right: -10px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .nav-links.active {
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links a {
    font-size: 1.2rem;
  }
}

/* ========================================
   HERO
   ======================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text h1 {
  margin-bottom: 1.5rem;
}

.hero-text p {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-image img {
    height: 300px;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  margin-left: 1rem;
}

.btn-secondary:hover {
  border-color: var(--color-text);
}

/* ========================================
   SERVICES
   ======================================== */

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

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.section-header p {
  color: var(--color-text-light);
  margin-top: 1rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--color-text);
  transform: translateY(-4px);
}

.service-card h3 {
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.service-card .price {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   DIFFERENTIATORS
   ======================================== */

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

.differentiators .section-header p {
  color: rgba(255,255,255,0.7);
}

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

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

.diff-item .number {
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.diff-item h3 {
  margin-bottom: 0.5rem;
}

.diff-item p {
  font-size: 0.9rem;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .diff-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ========================================
   GALLERY
   ======================================== */

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

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  border-radius: 4px;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  transition: var(--transition);
}

.gallery-item:hover .gallery-item-overlay {
  background: rgba(0,0,0,0.4);
}

.gallery-item-overlay span {
  color: var(--color-white);
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
}

.gallery-item:hover .gallery-item-overlay span {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========================================
   PRICING PAGE
   ======================================== */

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
}

.pricing-table th,
.pricing-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.pricing-table th {
  font-weight: 500;
  background: var(--color-white);
}

.pricing-table tr:hover {
  background: rgba(0,0,0,0.02);
}

.pricing-table .price {
  font-weight: 500;
}

/* Calculator */
.calculator {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.calculator h3 {
  margin-bottom: 1.5rem;
}

.calc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.calc-field label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
}

.calc-field input,
.calc-field select {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
  transition: var(--transition);
}

.calc-field input:focus,
.calc-field select:focus {
  outline: none;
  border-color: var(--color-text);
}

.calc-result {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-result .label {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.calc-result .total {
  font-size: 2rem;
  font-weight: 600;
}

.calc-result .note {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

@media (max-width: 768px) {
  .calc-row {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   CONTACT
   ======================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h2 {
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

.contact-details {
  list-style: none;
}

.contact-details li {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact-details svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-light);
}

.contact-form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.form-row {
  margin-bottom: 1.5rem;
}

.form-row label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
  transition: var(--transition);
}

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

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

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   FOOTER
   ======================================== */

footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  opacity: 0.7;
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 300px;
}

.footer-links h4 {
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  opacity: 0.7;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  opacity: 0.6;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

/* ========================================
   LIGHTBOX
   ======================================== */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  opacity: 0.7;
  transition: var(--transition);
}

.lightbox-close:hover {
  opacity: 1;
}

/* ========================================
   ANIMATIONS
   ======================================== */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ========================================
   UTILITIES
   ======================================== */

/* ========================================
   FAQ
   ======================================== */

.faq-item {
  margin-bottom: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-accent);
}

.faq-item summary {
  font-weight: 500;
  cursor: pointer;
  margin: -1.5rem;
  padding: 1.5rem;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  float: right;
  font-weight: 300;
  font-size: 1.5rem;
  line-height: 1;
  transition: var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding-top: 1rem;
}

.faq-answer p {
  margin-bottom: 0;
}

/* ========================================
   UTILITIES
   ======================================== */

.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }