/* ============================================
   ARCHITECTURE STUDIO - POWER RED & STEEL THEME
   Primary: #D32F2F | Secondary: #424242
============================================ */

/* === ROOT VARIABLES === */
:root {
  --primary-color: #D32F2F;
  --secondary-color: #424242;
  --primary-dark: #B71C1C;
  --primary-light: #EF5350;
  --secondary-light: #616161;
  --white: #FFFFFF;
  --black: #000000;
  --light-gray: #F5F5F5;
  --border-radius: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(211, 47, 47, 0.15);
  --shadow-md: 0 4px 16px rgba(211, 47, 47, 0.2);
  --shadow-lg: 0 8px 32px rgba(211, 47, 47, 0.25);
}

/* === 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(--secondary-color) !important;
  background-color: var(--white) !important;
  line-height: 1.7;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5 {
  font-weight: 700 !important;
  color: var(--secondary-color) !important;
  letter-spacing: -0.02em;
}

.display-1 {
  font-size: clamp(2.5rem, 8vw, 5.5rem) !important;
}

.display-3 {
  font-size: clamp(2rem, 5vw, 3.5rem) !important;
}

.display-4 {
  font-size: clamp(1.75rem, 4vw, 2.75rem) !important;
}

.display-5 {
  font-size: clamp(1.5rem, 3vw, 2.25rem) !important;
}

.lead {
  font-size: clamp(1rem, 2vw, 1.35rem) !important;
  font-weight: 400 !important;
  color: var(--secondary-light) !important;
}

.fs-5 {
  color: var(--secondary-light) !important;
}

.text-muted {
  color: var(--secondary-light) !important;
}

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

.text-white-50 {
  color: rgba(255, 255, 255, 0.7) !important;
}

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

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

.text-success {
  color: #28A745 !important;
}

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

/* === NAVIGATION === */
.navbar {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%) !important;
  padding: 1.25rem 0 !important;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  z-index: 1050;
}

.navbar.fixed-top {
  backdrop-filter: blur(10px);
}

.navbar-dark .navbar-brand {
  color: var(--white) !important;
  font-size: 1.75rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.5px;
  transition: var(--transition);
  text-transform: uppercase;
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  transform: scale(1.05);
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.95) !important;
  font-weight: 600 !important;
  padding: 0.75rem 1.25rem !important;
  margin: 0 0.25rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.navbar-dark .navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  bottom: 0.5rem;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--primary-color);
  transition: transform 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
  color: var(--primary-color) !important;
  background-color: rgba(211, 47, 47, 0.1) !important;
}

.navbar-dark .navbar-nav .nav-link:hover::before,
.navbar-dark .navbar-nav .nav-link.active::before {
  transform: translateX(-50%) scaleX(1);
}

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

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.5) !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='%23D32F2F' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* === HERO SECTION === */
.hero-section {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%);
  position: relative;
  min-height: 100vh;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(211, 47, 47, 0.9) 0%, rgba(66, 66, 66, 0.85) 100%);
  z-index: 1;
}

.video-background {
  object-fit: cover;
  z-index: 0;
  opacity: 0.3;
}

.hero-content {
  z-index: 2;
  position: relative;
  animation: fadeInUp 1s ease-out;
}

.hero-content .display-1 {
  color: var(--white) !important;
  text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
  margin-bottom: 1.5rem !important;
  font-weight: 900 !important;
}

.hero-content .lead {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
  max-width: 700px;
  margin: 0 auto 2.5rem !important;
}

/* === BUTTONS === */
.btn {
  font-weight: 600 !important;
  border-radius: var(--border-radius) !important;
  transition: var(--transition) !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none !important;
  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, 0.2);
  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 !important;
}

.btn-primary,
.btn.bg-primary {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn.bg-primary:hover {
  background-color: var(--primary-dark) !important;
  color: var(--white) !important;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

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

.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;
}

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

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

.btn-filter,
.filter-btn {
  background-color: var(--light-gray) !important;
  color: var(--secondary-color) !important;
  border: 2px solid transparent !important;
}

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

/* === ICONS === */
.bi {
  vertical-align: middle;
}

.bi-chevron-down {
  font-size: 2rem;
  animation: bounce 2s infinite;
  color: var(--white) !important;
}

[class^="bi-"],
[class*=" bi-"] {
  color: var(--primary-color);
  transition: var(--transition);
}

.text-white [class^="bi-"],
.text-white [class*=" bi-"] {
  color: var(--white) !important;
}

.bi-lightning-charge-fill,
.bi-lightning-fill {
  color: var(--primary-color) !important;
  font-size: 2.5rem;
}

/* === CARDS === */
.card {
  border-radius: var(--border-radius) !important;
  transition: var(--transition) !important;
  border: none !important;
  overflow: hidden;
}

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

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

.card-body {
  padding: 2rem !important;
}

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

.card-text {
  color: var(--secondary-light) !important;
}

.team-card {
  position: relative;
  height: 400px;
  perspective: 1000px;
}

.team-card .card {
  position: absolute;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.team-card:hover .card {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--border-radius);
}

.card-back {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white) !important;
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.card-back * {
  color: var(--white) !important;
}

.instructor-card {
  background: var(--white);
  border-left: 4px solid var(--primary-color);
}

.instructor-card:hover {
  border-left-width: 8px;
}

/* === IMAGES === */
.img-fluid {
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.card-img-top {
  height: 250px;
  object-fit: cover;
}

.rounded-circle {
  border: 4px solid var(--primary-color) !important;
}

/* === BADGES === */
.badge {
  padding: 0.5rem 1rem !important;
  font-weight: 600 !important;
  border-radius: 50px !important;
  font-size: 0.85rem !important;
}

.achievement-badge {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.achievement-badge:hover {
  transform: scale(1.1) rotate(5deg);
}

/* === SECTIONS === */
section {
  position: relative;
}

.py-5 {
  padding-top: 5rem !important;
  padding-bottom: 5rem !important;
}

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

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

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

.bg-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
}

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

/* === TIMELINE === */
.timeline-section {
  position: relative;
  padding: 3rem 0;
}

.timeline-section::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--primary-color), var(--primary-light));
  transform: translateX(-50%);
}

/* === FORMS === */
.form-label {
  color: var(--secondary-color) !important;
  font-weight: 600 !important;
  margin-bottom: 0.75rem !important;
}

.form-control,
.form-select {
  border: 2px solid var(--light-gray) !important;
  border-radius: var(--border-radius) !important;
  padding: 0.875rem 1.25rem !important;
  transition: var(--transition) !important;
  color: var(--secondary-color) !important;
  background-color: var(--white) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.25) !important;
  outline: none !important;
}

.form-control::placeholder {
  color: var(--secondary-light) !important;
  opacity: 0.6;
}

.invalid-feedback {
  color: var(--primary-color) !important;
  font-weight: 600 !important;
  display: block;
  margin-top: 0.5rem;
}

.form-control.is-invalid {
  border-color: var(--primary-color) !important;
}

/* === TABLES === */
.table-responsive {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table {
  margin-bottom: 0 !important;
  color: var(--secondary-color) !important;
}

.table thead {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%);
  color: var(--white) !important;
}

.table thead th {
  color: var(--white) !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none !important;
  padding: 1.25rem !important;
}

.table-bordered td,
.table-bordered th {
  border-color: rgba(211, 47, 47, 0.1) !important;
}

.table tbody tr {
  transition: var(--transition);
}

.table tbody tr:hover {
  background-color: rgba(211, 47, 47, 0.05) !important;
}

.schedule-table .class-cell {
  cursor: pointer;
  transition: var(--transition);
  padding: 1rem !important;
  text-align: center;
  font-weight: 600;
}

.schedule-table .class-cell:hover {
  background-color: rgba(211, 47, 47, 0.1) !important;
  transform: scale(1.05);
}

.schedule-table .hiit,
.schedule-table .morning-burn {
  background-color: rgba(211, 47, 47, 0.1) !important;
  border-left: 4px solid var(--primary-color) !important;
}

.schedule-table .strength,
.schedule-table .power-hour {
  background-color: rgba(66, 66, 66, 0.1) !important;
  border-left: 4px solid var(--secondary-color) !important;
}

.schedule-table .conditioning,
.schedule-table .core-crusher {
  background-color: rgba(211, 47, 47, 0.15) !important;
  border-left: 4px solid var(--primary-dark) !important;
}

/* === ACCORDION === */
.accordion-item {
  border: none !important;
  margin-bottom: 1rem;
  border-radius: var(--border-radius) !important;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

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

.accordion-button {
  background-color: var(--light-gray) !important;
  color: var(--secondary-color) !important;
  font-weight: 700 !important;
  padding: 1.25rem 1.5rem !important;
  border: none !important;
  transition: var(--transition) !important;
}

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

.accordion-button:focus {
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.25) !important;
  border: none !important;
}

.accordion-button::after {
  filter: brightness(0) invert(1);
}

.accordion-button.collapsed::after {
  filter: brightness(1) invert(0);
}

.accordion-body {
  padding: 1.5rem !important;
  background-color: var(--white) !important;
  color: var(--secondary-light) !important;
}

/* === ALERTS === */
.alert {
  border-radius: var(--border-radius) !important;
  border: none !important;
  padding: 1.25rem 1.5rem !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-sm);
}

.alert [class^="bi-"] {
  font-size: 1.5rem;
  margin-right: 0.75rem;
}

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

.carousel-item {
  transition: transform 0.6s ease-in-out !important;
}

.carousel-control-prev,
.carousel-control-next {
  width: 60px !important;
  opacity: 1 !important;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  background-color: var(--primary-color);
  border-radius: 50%;
  padding: 20px;
  transition: var(--transition);
}

.carousel-control-prev:hover .carousel-control-prev-icon,
.carousel-control-next:hover .carousel-control-next-icon {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

/* === SPINNER === */
.spinner-border {
  color: var(--primary-color) !important;
  border-width: 0.3em !important;
}

.spinner-border-sm {
  width: 1.25rem !important;
  height: 1.25rem !important;
  border-width: 0.2em !important;
}

/* === SHADOWS === */
.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

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

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

/* === UTILITIES === */
.border-bottom {
  border-bottom: 2px solid rgba(211, 47, 47, 0.2) !important;
}

.gap-2 {
  gap: 0.5rem !important;
}

.gap-3 {
  gap: 1rem !important;
}

.g-3 {
  gap: 1rem !important;
}

.g-4 {
  gap: 1.5rem !important;
}

.g-0 {
  gap: 0 !important;
}

.position-sticky {
  position: sticky !important;
  top: 100px;
  z-index: 1020;
}

.position-fixed {
  position: fixed !important;
}

.position-relative {
  position: relative !important;
}

.position-absolute {
  position: absolute !important;
}

.translate-middle {
  transform: translate(-50%, -50%) !important;
}

.translate-middle-x {
  transform: translateX(-50%) !important;
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-15px);
  }
  60% {
    transform: translateY(-8px);
  }
}

@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 scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

.animate-scale-in {
  animation: scaleIn 0.6s ease-out;
}

/* === RESPONSIVE DESIGN === */

/* Mobile First - Base styles above are for mobile */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
  
  .navbar-expand-lg .navbar-nav {
    flex-direction: row;
  }
  
  .hero-content .display-1 {
    font-size: 4.5rem !important;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
  
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
  }
  
  .navbar-expand-lg .navbar-toggler {
    display: none;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* XXL devices (larger desktops, 1400px and up) */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Mobile specific styles */
@media (max-width: 991px) {
  .navbar-collapse {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%);
    padding: 1.5rem;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
  }
  
  .navbar-nav .nav-link {
    padding: 1rem !important;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .navbar-nav .nav-link:last-child {
    border-bottom: none;
  }
  
  .hero-section {
    min-height: 70vh;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .display-1 {
    font-size: 2.5rem !important;
  }
  
  .display-3 {
    font-size: 2rem !important;
  }
  
  .display-4 {
    font-size: 1.75rem !important;
  }
  
  .btn-lg {
    padding: 0.875rem 2rem !important;
    font-size: 1rem !important;
  }
  
  .card-body {
    padding: 1.5rem !important;
  }
  
  .team-card {
    height: 350px;
  }
  
  .timeline-section::before {
    left: 20px;
  }
}

/* Extra small devices */
@media (max-width: 575px) {
  .px-4 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .py-5 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.95rem !important;
  }
  
  .display-1 {
    font-size: 2rem !important;
  }
  
  .achievement-badge {
    width: 100px;
    height: 100px;
  }
}

/* Print styles */
@media print {
  .navbar,
  .btn,
  .carousel-control-prev,
  .carousel-control-next {
    display: none !important;
  }
  
  body {
    color: #000 !important;
    background: #fff !important;
  }
}

/* Accessibility */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
.btn:focus {
  outline: 3px solid var(--primary-color) !important;
  outline-offset: 2px !important;
}

/* Smooth scroll behavior */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, var(--primary-color), var(--primary-dark));
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

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

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