/* ========================================
   달성렌탈 - 스타일시트
   Color Concept: Orange/Energy
======================================== */

/* CSS Variables */
:root {
  --primary: #ff6b35;
  --primary-dark: #e55a2b;
  --primary-light: #ff8c5a;
  --secondary: #2d3436;
  --secondary-light: #636e72;
  --accent: #fdcb6e;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-600: #868e96;
  --black: #212529;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.2);

  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    'Noto Sans KR',
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--secondary);
  background-color: var(--white);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

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

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

.btn-secondary {
  background: var(--white);
  color: var(--secondary);
  border: 2px solid var(--gray-300);
}

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

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

/* Section Common */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 18px;
  color: var(--secondary-light);
}

/* ========================================
   Header
======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: var(--transition);
}

.header.scrolled {
  background: var(--white);
  box-shadow: var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  height: 100%;
  overflow: hidden;
}
.logo img {
  height: 130%;
  width: auto;
}

.nav-list {
  display: flex;
  gap: 40px;
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
  position: relative;
}

.header.scrolled .nav-link {
  color: var(--secondary);
}

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

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

.header.scrolled .mobile-menu-btn span {
  background: var(--secondary);
}

/* ========================================
   Hero Section
======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(45, 52, 54, 0.85) 0%,
    rgba(45, 52, 54, 0.7) 50%,
    rgba(255, 107, 53, 0.4) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 20px;
  max-width: 900px;
}

.hero-company {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: 4px;
}

.hero-phone {
  display: block;
  font-size: 64px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-decoration: none;
  transition: var(--transition);
}

.hero-phone:hover {
  color: var(--accent);
  transform: scale(1.02);
}

.hero-slogan {
  display: block;
  font-size: 24px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-subtitle strong {
  color: var(--accent);
  font-weight: 700;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
}

.hero-feature::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid rgba(255, 255, 255, 0.7);
  border-bottom: 2px solid rgba(255, 255, 255, 0.7);
  transform: rotate(45deg);
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ========================================
   About Section
======================================== */
.about {
  padding: 120px 0;
  background: var(--white);
}

.about-content {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.about-intro {
  font-size: 20px;
  line-height: 1.8;
  color: var(--secondary);
  margin-bottom: 20px;
}

.about-desc {
  font-size: 18px;
  color: var(--secondary-light);
  margin-bottom: 40px;
}

.trust-message {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 30px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  text-align: left;
}

.trust-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border-radius: 50%;
  color: var(--white);
}

.trust-message p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--secondary-light);
}

.strengths {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.strength-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.strength-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  color: var(--white);
}

.strength-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 12px;
}

.strength-desc {
  font-size: 14px;
  color: var(--secondary-light);
  line-height: 1.6;
}

/* ========================================
   Service Section
======================================== */
.service {
  padding: 120px 0;
  background: var(--gray-50);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  text-align: center;
  padding: 48px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.service-icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: 50%;
  color: var(--primary);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: var(--white);
}

.service-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: var(--secondary-light);
  line-height: 1.6;
}

/* ========================================
   Products Section
======================================== */
.products {
  padding: 120px 0;
  background: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.product-image {
  position: relative;
  height: 240px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-image img {
  max-height: 200px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

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

.product-info {
  padding: 24px;
}

.product-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 4px;
}

.product-type {
  font-size: 14px;
  color: var(--secondary-light);
  margin-bottom: 16px;
}

.product-specs {
  display: flex;
  gap: 16px;
}

.spec {
  flex: 1;
  padding: 12px;
  background: var(--gray-50);
  border-radius: var(--radius);
  text-align: center;
}

.spec-label {
  display: block;
  font-size: 12px;
  color: var(--secondary-light);
  margin-bottom: 4px;
}

.spec-value {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

/* ========================================
   Contact Section
======================================== */
.contact {
  padding: 120px 0;
  background: linear-gradient(135deg, var(--secondary) 0%, #1a1d1e 100%);
}

.contact .section-label {
  background: var(--primary);
}

.contact .section-title {
  color: var(--white);
}

.contact .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.contact-card {
  text-align: center;
  padding: 48px 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.contact-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border-radius: 50%;
  color: var(--white);
}

.contact-title {
  font-size: 16px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
}

.contact-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

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

.contact-note {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

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

.contact-cta .btn-primary {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4);
  }
  70% {
    box-shadow: 0 0 0 20px rgba(255, 107, 53, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0);
  }
}

/* ========================================
   Footer
======================================== */
.footer {
  padding: 60px 0 30px;
  background: #1a1d1e;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 30px;
}

.footer-logo img {
  height: 40px;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.footer-logo p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
}

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

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

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Responsive Design
======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .section-title {
    font-size: 32px;
  }

  .hero-slogan {
    font-size: 40px;
  }

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

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

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

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

  .contact-card:last-child {
    grid-column: span 2;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .header .container {
    height: 70px;
  }

  .logo img {
    height: 40px;
  }

  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
  }

  .nav-link {
    display: block;
    padding: 16px 0;
    color: var(--secondary);
    border-bottom: 1px solid var(--gray-200);
  }

  .header-cta {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

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

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

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

  .hero {
    min-height: 100vh;
    padding-top: 70px;
  }

  .hero-company {
    font-size: 18px;
  }

  .hero-slogan {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-features {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .scroll-indicator {
    display: none;
  }

  .about,
  .service,
  .products,
  .contact {
    padding: 80px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: 28px;
  }

  .section-desc {
    font-size: 16px;
  }

  .about-intro {
    font-size: 18px;
  }

  .trust-message {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .strengths {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .strength-card {
    padding: 24px 16px;
  }

  .strength-icon {
    width: 60px;
    height: 60px;
  }

  .strength-icon svg {
    width: 28px;
    height: 28px;
  }

  .strength-title {
    font-size: 16px;
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-card {
    padding: 32px 20px;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .product-image {
    height: 200px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-card {
    padding: 32px 24px;
  }

  .contact-card:last-child {
    grid-column: auto;
  }

  .contact-value {
    font-size: 20px;
  }

  .footer-content {
    flex-direction: column;
    gap: 30px;
    text-align: center;
  }

  .footer-logo {
    margin: 0 auto;
  }

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

/* Small Mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-slogan {
    font-size: 24px;
  }

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

  .product-specs {
    flex-direction: column;
    gap: 8px;
  }

  .btn-large {
    padding: 16px 32px;
    font-size: 16px;
  }
}

/* Animations for scroll reveal */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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