/*
 * UpConstruction Inspired Corporate Website Stylesheet
 * Custom Styling & Animations
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --color-primary: #2ebd59;
  --color-primary-dark: #229944;
  --color-dark: #111111;
  --color-dark-accent: #181818;
  --color-dark-light: #222222;
  --color-light: #ffffff;
  --color-gray: #f5f5f7;
  --color-text-dark: #1f1f1f;
  --color-text-muted: #75757a;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-light);
  color: var(--color-text-dark);
  overflow-x: hidden;
}

.font-heading {
  font-family: var(--font-heading);
}

.font-body {
  font-family: var(--font-body);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}

/* Preloader */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-dark);
  z-index: 99999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(46, 189, 89, 0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(to right, var(--color-primary), #45cf6f);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s ease-out;
}

/* Back to Top */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--color-primary);
  color: var(--color-dark);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 18px;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(46, 189, 89, 0.3);
}

#back-to-top.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  background-color: var(--color-dark);
  color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(17, 17, 17, 0.4);
}

/* Header & Navigation */
header {
  transition: var(--transition-smooth);
}

header.scrolled {
  background-color: rgba(17, 17, 17, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

header.scrolled nav a {
  color: #e5e5e7;
}

header.scrolled nav a:hover,
header.scrolled nav a.active {
  color: var(--color-primary);
}

/* Hero Section Parallax & Overlays */
.hero-overlay {
  background: linear-gradient(135deg, rgba(17, 17, 17, 0.85) 0%, rgba(17, 17, 17, 0.5) 100%);
}

.hero-scroll-btn {
  animation: bounce 2s infinite;
}

/* Custom Gradients */
.bg-gradient-gold {
  background: linear-gradient(135deg, var(--color-primary) 0%, #45cf6f 100%);
}

.text-gradient-gold {
  background: linear-gradient(135deg, var(--color-primary) 0%, #ff9f43 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Micro Interactions & Hover Effects */
.btn-premium {
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.btn-premium::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300%;
  height: 300%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%) scale(0);
  border-radius: 50%;
  transition: transform 0.5s ease;
}

.btn-premium:hover::after {
  transform: translate(-50%, -50%) scale(1);
}

.btn-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(46, 189, 89, 0.35);
}

.btn-outline-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 255, 255, 0.1);
}

/* Card Lift & Shadow */
.card-premium {
  background: var(--color-light);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.02);
  transition: var(--transition-smooth);
}

.card-premium:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: rgba(46, 189, 89, 0.3);
}

.card-premium-dark {
  background: var(--color-dark-accent);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  transition: var(--transition-smooth);
}

.card-premium-dark:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(46, 189, 89, 0.4);
}

/* Image Zoom */
.image-zoom-container {
  overflow: hidden;
}

.image-zoom {
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-zoom-container:hover .image-zoom {
  transform: scale(1.08);
}

/* Glassmorphism */
.glassmorphism {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.glassmorphism-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.reveal-left {
  transform: translateX(-50px);
}

.reveal.reveal-right {
  transform: translateX(50px);
}

.reveal.reveal-zoom {
  transform: scale(0.92);
}

.reveal.active {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Staggered Delay Utilities */
.delay-100 { transition-delay: 100ms !important; }
.delay-200 { transition-delay: 200ms !important; }
.delay-300 { transition-delay: 300ms !important; }
.delay-400 { transition-delay: 400ms !important; }
.delay-500 { transition-delay: 500ms !important; }
.delay-600 { transition-delay: 600ms !important; }

/* Timeline UI styling */
.timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 4px solid var(--color-dark);
  left: 50%;
  transform: translateX(-50%);
  top: 24px;
  z-index: 1;
  transition: var(--transition-smooth);
}

@media (max-width: 767px) {
  .timeline-item::after {
    left: 20px;
    transform: none;
  }
}

.timeline-item:hover::after {
  background-color: var(--color-light);
  border-color: var(--color-primary);
  transform: translateX(-50%) scale(1.2);
}

@media (max-width: 767px) {
  .timeline-item:hover::after {
    transform: scale(1.2);
  }
}

/* Portfolio Filters */
.portfolio-filter-btn {
  position: relative;
  transition: var(--transition-smooth);
}

.portfolio-filter-btn::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition-smooth);
}

.portfolio-filter-btn.active {
  color: var(--color-primary);
}

.portfolio-filter-btn.active::after {
  width: 100%;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(11, 11, 11, 0.95);
  backdrop-filter: blur(8px);
  z-index: 999999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

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

.lightbox-content {
  position: relative;
  max-width: 85%;
  max-height: 85%;
  transform: scale(0.9);
  transition: var(--transition-smooth);
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 80vh;
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -45px;
  right: 0;
  color: var(--color-light);
  font-size: 32px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.lightbox-close:hover {
  color: var(--color-primary);
  transform: rotate(90deg);
}

.lightbox-caption {
  color: #ccc;
  text-align: center;
  margin-top: 15px;
  font-family: var(--font-body);
}

/* Testimonials Carousel */
.slider-container {
  overflow: hidden;
  position: relative;
  width: 100%;
}

.slider-wrapper {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.slide-item {
  flex-shrink: 0;
  width: 100%;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.slider-dot.active {
  background-color: var(--color-primary);
  width: 28px;
  border-radius: 5px;
}

/* FAQ Accordion Accordion styles */
.faq-accordion button {
  text-align: left;
}

.faq-accordion .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}


.faq-accordion .faq-icon {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-accordion.open .faq-icon {
  transform: rotate(180deg);
}

/* Form Validation Styles */
.form-input {
  transition: var(--transition-smooth);
  background-color: #222;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px rgba(46, 189, 89, 0.15);
  background-color: #282828;
}

.form-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.15) !important;
}

.error-message {
  color: #ef4444;
  font-size: 13px;
  margin-top: 4px;
  display: none;
}

.error-message.show {
  display: block;
}

/* Floating Animation */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

/* Keyframes */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

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

/* Mobile Menu Transition */
.mobile-menu {
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.active {
  transform: translateX(0);
}