/* Frontier Red & Steel - Architectural Studio Theme */

/* ===== CSS Variables & Root Styles ===== */
:root {
  --primary-color: #D32F2F;
  --secondary-color: #424242;
  --dark-gray: #212121;
  --light-gray: #F5F5F5;
  --white: #FFFFFF;
  --text-dark: #1A1A1A;
  --text-light: #F5F5F5;
  --transition-speed: 0.3s;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
}

/* ===== Global Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  background-color: var(--light-gray);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.display-1, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  opacity: 0.9;
}

/* ===== Navigation Bar ===== */
.navbar {
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--secondary-color) 100%) !important;
  padding: 1rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  transition: all var(--transition-speed) ease;
}

.navbar-dark {
  background-color: var(--secondary-color) !important;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background: rgba(33, 33, 33, 0.98) !important;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700 !important;
  color: var(--white) !important;
  letter-spacing: 0.5px;
  transition: all var(--transition-speed) ease;
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  transform: translateX(5px);
}

.navbar-toggler {
  border: 2px solid var(--primary-color) !important;
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.3) !important;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  border-radius: 6px;
  transition: all var(--transition-speed) ease;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--white) !important;
  background-color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: all var(--transition-speed) ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

/* ===== Hero Section ===== */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--secondary-color) 50%, var(--primary-color) 100%);
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.parallax-bg {
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 0h50v50H0zM50 50h50v50H50z" fill="%23ffffff" opacity="0.03"/%3E%3C/svg%3E');
  background-size: 100px 100px;
  animation: parallaxMove 20s linear infinite;
  z-index: 1;
}

@keyframes parallaxMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(100px, 100px); }
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section .text-white {
  color: var(--white) !important;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-section .display-1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  animation: fadeInUp 1s ease-out;
  color: var(--white) !important;
}

.hero-section .lead {
  animation: fadeInUp 1.2s ease-out;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.95) !important;
}

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

/* ===== Buttons ===== */
.btn {
  font-weight: 600;
  border-radius: var(--border-radius);
  transition: all var(--transition-speed) ease;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-lg {
  padding: 1rem 2.5rem !important;
  font-size: 1.1rem;
}

.btn-primary,
.bg-danger {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  box-shadow: 0 4px 15px rgba(211, 47, 47, 0.4);
}

.btn-primary:hover {
  background-color: #B71C1C !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(211, 47, 47, 0.6) !important;
}

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

.btn-outline-light:hover {
  background-color: var(--white) !important;
  color: var(--primary-color) !important;
  border-color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4) !important;
}

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

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

/* ===== Cards ===== */
.card {
  border: none !important;
  border-radius: 12px;
  transition: all var(--transition-speed) ease;
  overflow: hidden;
  background-color: var(--white);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2) !important;
}

.card-img-top {
  height: 250px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-img-top {
  transform: scale(1.1);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--secondary-color) !important;
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-dark);
  line-height: 1.6;
}

.card-header {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  font-weight: 600;
  border: none;
  padding: 1rem 1.5rem;
}

.card-footer {
  background-color: var(--light-gray) !important;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1rem 1.5rem;
}

.shadow-sm {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08) !important;
}

.shadow,
.shadow-lg {
  box-shadow: var(--box-shadow) !important;
}

/* ===== Service & Value Cards ===== */
.service-card,
.value-card {
  background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
  padding: 2rem;
  border-radius: 12px;
  transition: all var(--transition-speed) ease;
  height: 100%;
  border: 2px solid transparent;
}

.service-card:hover,
.value-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(211, 47, 47, 0.2) !important;
}

/* ===== Carousel ===== */
.carousel {
  border-radius: 12px;
  overflow: hidden;
}

.carousel-item {
  transition: transform 0.8s ease-in-out;
}

.carousel-inner {
  border-radius: 12px;
}

.carousel-control-prev,
.carousel-control-next {
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.8;
  transition: all var(--transition-speed) ease;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
  opacity: 1;
  background-color: var(--secondary-color);
}

.carousel-control-prev {
  left: 20px;
}

.carousel-control-next {
  right: 20px;
}

.carousel-indicators [data-bs-target] {
  background-color: var(--primary-color);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin: 0 5px;
}

/* ===== Forms ===== */
.form-control,
.form-select {
  border: 2px solid rgba(66, 66, 66, 0.2);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  transition: all var(--transition-speed) ease;
  background-color: var(--white);
  color: var(--text-dark) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
  outline: none;
}

.form-label {
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.form-check-input {
  border: 2px solid var(--secondary-color);
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
}

.form-check-label {
  color: var(--text-dark);
  cursor: pointer;
}

/* ===== Sections ===== */
.py-5 {
  padding-top: 5rem !important;
  padding-bottom: 5rem !important;
}

.py-4 {
  padding-top: 3rem !important;
  padding-bottom: 3rem !important;
}

section {
  position: relative;
  overflow: hidden;
}

/* ===== Background Utilities ===== */
.bg-light {
  background-color: var(--light-gray) !important;
}

.bg-dark {
  background-color: var(--dark-gray) !important;
}

.bg-white {
  background-color: var(--white) !important;
}

.bg-danger {
  background-color: var(--primary-color) !important;
}

.bg-success {
  background-color: #4CAF50 !important;
}

/* ===== Text Utilities ===== */
.text-white,
.text-light {
  color: var(--white) !important;
}

.text-white-50 {
  color: rgba(255, 255, 255, 0.5) !important;
}

.text-dark {
  color: var(--text-dark) !important;
}

.text-muted {
  color: rgba(26, 26, 26, 0.6) !important;
}

.text-success {
  color: #4CAF50 !important;
}

.text-decoration-none {
  text-decoration: none !important;
}

.text-decoration-none:hover {
  text-decoration: underline !important;
}

/* ===== Bootstrap Icons ===== */
.bi {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  transition: all var(--transition-speed) ease;
}

.card:hover .bi,
.service-card:hover .bi,
.value-card:hover .bi {
  transform: scale(1.15) rotate(5deg);
  color: var(--secondary-color);
}

/* ===== Badges ===== */
.badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
}

/* ===== Alerts ===== */
.alert {
  border: none;
  border-radius: var(--border-radius);
  padding: 1.25rem;
  border-left: 4px solid;
}

.alert-warning {
  background-color: #FFF3E0;
  color: #E65100;
  border-left-color: #FF9800;
}

.alert-light {
  background-color: var(--light-gray);
  color: var(--text-dark);
  border-left-color: var(--secondary-color);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background-color: transparent;
  padding: 1rem 0;
  margin-bottom: 0;
}

.breadcrumb-item {
  color: var(--text-dark);
}

.breadcrumb-item.active {
  color: var(--primary-color);
  font-weight: 600;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--secondary-color);
  content: '/';
}

/* ===== Accordion ===== */
.accordion {
  border-radius: var(--border-radius);
  overflow: hidden;
}

.accordion-item {
  border: 1px solid rgba(0, 0, 0, 0.08);
  margin-bottom: 0.5rem;
  border-radius: var(--border-radius) !important;
  overflow: hidden;
}

.accordion-button {
  background-color: var(--light-gray);
  color: var(--text-dark) !important;
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  transition: all var(--transition-speed) ease;
}

.accordion-button:not(.collapsed) {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15);
  border-color: var(--primary-color);
}

.accordion-button::after {
  filter: brightness(0) invert(0);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1);
}

.accordion-body {
  padding: 1.5rem;
  background-color: var(--white);
  color: var(--text-dark);
}

/* ===== List Styles ===== */
.list-unstyled li {
  padding: 0.5rem 0;
  transition: all var(--transition-speed) ease;
}

.list-unstyled li:hover {
  padding-left: 10px;
  color: var(--primary-color);
}

/* ===== Position Utilities ===== */
.position-sticky,
.sticky-lg-top {
  position: sticky;
  top: 80px;
  z-index: 10;
}

.position-relative {
  position: relative;
}

.position-absolute {
  position: absolute;
}

/* ===== Ratio & Media ===== */
.ratio {
  position: relative;
  width: 100%;
}

.ratio-16x9::before {
  padding-top: 56.25%;
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

.rounded {
  border-radius: var(--border-radius) !important;
}

.rounded-circle {
  border-radius: 50% !important;
}

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

.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

/* ===== Opacity ===== */
.opacity-75 {
  opacity: 0.75;
}

/* ===== Footer ===== */
footer {
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--secondary-color) 100%);
  color: var(--white) !important;
  padding: 3rem 0 1rem;
}

footer h5,
footer h6 {
  color: var(--white) !important;
  font-weight: 700;
}

footer a {
  color: rgba(255, 255, 255, 0.8) !important;
  transition: all var(--transition-speed) ease;
}

footer a:hover {
  color: var(--primary-color) !important;
  padding-left: 5px;
}

footer .bi {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ===== Loading Spinner ===== */
.spinner {
  border: 4px solid rgba(211, 47, 47, 0.2);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

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

/* ===== Horizontal Scrolling ===== */
.overflow-auto {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) var(--light-gray);
}

.overflow-auto::-webkit-scrollbar {
  height: 8px;
}

.overflow-auto::-webkit-scrollbar-track {
  background: var(--light-gray);
  border-radius: 10px;
}

.overflow-auto::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 10px;
}

.overflow-auto::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-color);
}

/* ===== Gap Utilities ===== */
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }

/* ===== Responsive Typography ===== */
@media (max-width: 768px) {
  .display-1 { font-size: 2.5rem; }
  .display-3 { font-size: 2rem; }
  .display-4 { font-size: 1.75rem; }
  .display-5 { font-size: 1.5rem; }
  .display-6 { font-size: 1.25rem; }
  .lead { font-size: 1.1rem; }
}

/* ===== Mobile Responsiveness ===== */
@media (max-width: 991px) {
  .navbar-collapse {
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--secondary-color) 100%);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
    margin: 0.25rem 0;
  }
  
  .hero-section {
    min-height: 80vh;
    padding-top: 100px;
  }
  
  .btn-lg {
    padding: 0.875rem 2rem !important;
    font-size: 1rem;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .carousel-control-prev,
  .carousel-control-next {
    width: 45px;
    height: 45px;
  }
  
  .position-sticky,
  .sticky-lg-top {
    position: relative;
    top: 0;
  }
}

@media (max-width: 576px) {
  .container-fluid {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.95rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .bi {
    font-size: 2rem;
  }
  
  .py-5 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }
}

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .btn,
  footer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* ===== Custom Animations ===== */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* ===== Hover Effects ===== */
.hover-lift {
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* ===== Focus Visible ===== */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== Selection ===== */
::selection {
  background-color: var(--primary-color);
  color: var(--white);
}

::-moz-selection {
  background-color: var(--primary-color);
  color: var(--white);
}

/* ===== Smooth Transitions ===== */
* {
  transition: color var(--transition-speed) ease, background-color var(--transition-speed) ease;
}