/* ============================================
   PROFESSOR PAINT INC - WALLPAPER INSTALLATION
   Professional Business Website CSS
   ============================================ */

/* ============================================
   1. ROOT VARIABLES & RESET
   ============================================ */

:root {
  --primary-color: #1a3a52;
  --accent-color: #2d5a7b;
  --light-bg: #f8f9fa;
  --neutral-light: #e8e8e8;
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --white: #ffffff;
  --success: #28a745;
  --error: #ff6b6b;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
}

/* ============================================
   2. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  color: var(--white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.8rem;
  color: var(--text-dark);
}

h4 {
  font-size: 1.4rem;
  color: var(--text-dark);
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
  font-size: 1rem;
}

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

a:hover {
  color: var(--primary-color);
}

/* ============================================
   3. BUTTONS & LINKS
   ============================================ */

.btn {
  display: inline-block;
  padding: 12px 28px;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

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

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

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

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

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

/* ============================================
   4. HEADER & NAVIGATION
   ============================================ */

header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: var(--text-dark);
  font-weight: 500;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

.call-now-btn {
  background-color: var(--accent-color);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 5px;
  font-weight: 600;
  white-space: nowrap;
}

.call-now-btn:hover {
  background-color: var(--primary-color);
}

/* ============================================
   5. HERO SECTION
   ============================================ */

.hero {
  height: 100vh;
  background: linear-gradient(135deg, rgba(26, 58, 82, 0.7) 0%, rgba(45, 90, 123, 0.7) 100%),
              url('../images/hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  z-index: 2;
  animation: fadeInUp 0.8s ease;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-buttons .btn {
  padding: 14px 32px;
  font-size: 1.1rem;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   6. SECTIONS & CONTAINERS
   ============================================ */

section {
  padding: 4rem 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--accent-color);
}

/* ============================================
   7. ABOUT SECTION
   ============================================ */

#about {
  background-color: var(--light-bg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-image {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

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

/* ============================================
   8. SERVICES SECTION
   ============================================ */

#services {
  background: linear-gradient(135deg, rgba(248, 249, 250, 0.8) 0%, rgba(232, 232, 232, 0.8) 100%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition);
  border-top: 4px solid var(--accent-color);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.service-card h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.service-card p {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   9. GALLERY SECTION
   ============================================ */

#gallery {
  background-color: var(--white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  aspect-ratio: 1;
  cursor: pointer;
}

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

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 58, 82, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.gallery-overlay-text {
  color: var(--white);
  font-weight: 600;
  text-align: center;
}

/* ============================================
   10. WHY CHOOSE US SECTION
   ============================================ */

#why-choose {
  background: linear-gradient(135deg, rgba(26, 58, 82, 0.95) 0%, rgba(45, 90, 123, 0.95) 100%),
              url('../images/gallery1.jpg') center/cover no-repeat;
  color: var(--white);
}

#why-choose h2 {
  color: var(--white);
}

#why-choose .section-title h2::after {
  background-color: var(--white);
}

.why-choose-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.why-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
  backdrop-filter: blur(10px);
}

.why-item h4 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.why-item p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

/* ============================================
   11. CONTACT SECTION
   ============================================ */

#contact {
  background-color: var(--light-bg);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-container {
  background-color: var(--white);
  padding: 2.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
}

.contact-form-container h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--neutral-light);
  border-radius: 5px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(45, 90, 123, 0.1);
}

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

.form-submit {
  width: 100%;
  padding: 14px;
  background-color: var(--accent-color);
  color: var(--white);
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.form-submit:active {
  transform: translateY(0);
}

#form-success {
  display: none;
  background-color: var(--success);
  color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  animation: slideIn 0.3s ease;
}

#form-success h3 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.error-message {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 0.3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-item {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--accent-color);
}

.contact-info-item h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.contact-info-item p {
  margin: 0;
}

.contact-info-item a {
  color: var(--accent-color);
  font-weight: 600;
}

.map-container {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.map-container iframe {
  width: 100%;
  height: 300px;
  border: none;
  border-radius: 5px;
}

/* ============================================
   12. FOOTER
   ============================================ */

footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3rem 2rem 1.5rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.footer-section a:hover {
  color: var(--white);
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--white);
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-icon:hover {
  background-color: var(--accent-color);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 1.5rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   13. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }

  nav {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    text-align: center;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

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

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-icons {
    justify-content: center;
  }

  section {
    padding: 3rem 1.5rem;
  }

  .services-grid,
  .gallery-grid,
  .why-choose-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  nav {
    gap: 0.5rem;
  }

  nav a {
    font-size: 0.9rem;
  }

  .contact-form-container {
    padding: 1.5rem;
  }

  .contact-info-item {
    padding: 1rem;
  }

  .map-container iframe {
    height: 250px;
  }
}

/* ============================================
   14. ANIMATIONS & EFFECTS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease;
}

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

.scroll-animation.active {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   15. UTILITY CLASSES
   ============================================ */

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

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
  display: none;
}

.visible {
  display: block;
}