/* ============================================
   REALESTHETICS - Design System
   Author: Jérémy MORIN
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
  /* Colors */
  --color-black: #050505;
  --color-black-light: #0a0a0a;
  --color-gray-dark: #1a1a1a;
  --color-gray: #333333;
  --color-gray-medium: #666666;
  --color-gray-light: #999999;
  --color-white: #ffffff;
  --color-white-off: #f5f5f5;

  /* Accent (subtle) */
  --color-accent: #c0a080;
  --color-accent-light: #d4b896;

  /* Typography */
  --font-primary: 'Inter', 'Helvetica Neue', sans-serif;
  --font-secondary: 'Cormorant Garamond', Georgia, serif;

  /* Sizes */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width: 1400px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.5);
}

/* ============ RESET ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-white);
  background-color: var(--color-black);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============ TYPOGRAPHY ============ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
  font-weight: 300;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

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

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

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

.signature {
  font-family: var(--font-secondary);
  font-style: italic;
  font-size: var(--font-size-xl);
  color: var(--color-gray-light);
  letter-spacing: 0.1em;
}

/* ============ LAYOUT ============ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-3xl);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* ============ HEADER ============ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: linear-gradient(to bottom, var(--color-black), transparent);
  z-index: 1000;
  transition: background var(--transition-base);
}

.header.scrolled {
  background: var(--color-black);
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  height: 50px;
}

.logo img {
  height: 100%;
  width: auto;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav-link.disabled {
  color: var(--color-gray);
  pointer-events: none;
}

/* Language Switch */
.lang-switch {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-gray);
  border-radius: 4px;
  font-size: var(--font-size-xs);
}

.lang-switch button {
  color: var(--color-gray-light);
  padding: var(--space-xs);
  transition: color var(--transition-fast);
}

.lang-switch button.active,
.lang-switch button:hover {
  color: var(--color-white);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-white);
  transition: transform var(--transition-fast);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    background: var(--color-black);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
  }

  .nav-list.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: var(--font-size-lg);
  }
}

/* ============ HERO ============ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  background-size: cover;
  background-position: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
      rgba(5, 5, 5, 0.3) 0%,
      rgba(5, 5, 5, 0.6) 50%,
      rgba(5, 5, 5, 0.9) 100%);
}

.hero-content {
  text-align: center;
  z-index: 1;
  padding: var(--space-xl);
}

.hero-logo {
  max-width: 400px;
  margin: 0 auto var(--space-xl);
}

.hero-text {
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  font-size: var(--font-size-lg);
  color: var(--color-gray-light);
  line-height: 1.8;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

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

.btn-outline {
  border: 1px solid var(--color-white);
  color: var(--color-white);
}

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

.btn-accent {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn-accent:hover {
  background: var(--color-accent-light);
}

/* ============ PORTFOLIO GRID ============ */
.portfolio-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.portfolio-sort {
  display: flex;
  gap: var(--space-sm);
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.filter-btn,
.sort-btn {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-light);
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all var(--transition-fast);
  background: transparent;
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active,
.sort-btn:hover,
.sort-btn.active {
  color: var(--color-white);
  border-color: var(--color-white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-gray-dark);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

.portfolio-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 5, 5, 0.9) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.portfolio-item-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
}

.portfolio-item-info {
  font-size: var(--font-size-sm);
  color: var(--color-gray-light);
}

/* ============ LIGHTBOX ============ */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.95);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
}

.lightbox-image {
  max-width: 70vw;
  max-height: 85vh;
  object-fit: contain;
}

.lightbox-info {
  max-width: 300px;
  padding: var(--space-xl);
}

.lightbox-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
}

.lightbox-details {
  font-size: var(--font-size-sm);
  color: var(--color-gray-light);
  line-height: 1.8;
}

.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  font-size: var(--font-size-3xl);
  color: var(--color-white);
  padding: var(--space-sm);
  transition: color var(--transition-fast);
}

.lightbox-close:hover {
  color: var(--color-accent);
}

/* ============ PRICING TABLE ============ */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
}

.pricing-table th,
.pricing-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--color-gray);
}

.pricing-table th {
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  background: var(--color-gray-dark);
}

.pricing-table tr:hover td {
  background: var(--color-gray-dark);
}

.pricing-table .price {
  font-weight: 500;
  color: var(--color-white);
}

/* ============ TABS ============ */
.tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.tab-btn {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-light);
  border: 1px solid var(--color-gray);
  transition: all var(--transition-fast);
}

.tab-btn:hover,
.tab-btn.active {
  color: var(--color-white);
  border-color: var(--color-white);
  background: var(--color-gray-dark);
}

.tab-content {
  display: none;
  animation: fadeIn var(--transition-base);
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ CONTACT FORM ============ */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-light);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-white);
  background: var(--color-gray-dark);
  border: 1px solid var(--color-gray);
  border-radius: 2px;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  color: #ff6b6b;
  font-size: var(--font-size-sm);
  margin-top: var(--space-xs);
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error .form-input,
.form-group.error .form-textarea {
  border-color: #ff6b6b;
}

/* ============ FOOTER ============ */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-gray);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.social-links {
  display: flex;
  gap: var(--space-lg);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray);
  border-radius: 50%;
  font-size: var(--font-size-lg);
  transition: all var(--transition-fast);
}

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

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-gray-light);
}

/* ============ PAGE HEADER ============ */
.page-header {
  padding-top: calc(var(--header-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
  text-align: center;
  background: linear-gradient(to bottom, var(--color-black-light), var(--color-black));
}

.page-title {
  margin-bottom: var(--space-md);
}

.page-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ============ ABOUT PAGE ============ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image {
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 2px;
}

.about-text {
  font-size: var(--font-size-lg);
  line-height: 1.9;
  color: var(--color-gray-light);
}

.about-text p {
  margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    max-width: 400px;
    margin: 0 auto;
  }
}

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

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: var(--space-sm);
}

.mb-2 {
  margin-bottom: var(--space-md);
}

.mb-3 {
  margin-bottom: var(--space-lg);
}

.mb-4 {
  margin-bottom: var(--space-xl);
}

.mb-5 {
  margin-bottom: var(--space-2xl);
}

/* ============ ANIMATIONS ============ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* Staggered animations */
.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

/* ============ WORDPRESS-STYLE ANIMATIONS ============ */

/* Scroll reveal - elements start hidden */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Reveal from right */
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale reveal */
.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* Slide up animation */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide in left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide in right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Zoom in */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============ PORTFOLIO LAZY LOADING ANIMATION ============ */

/* Skeleton loading effect */
.portfolio-item.loading {
  background: linear-gradient(90deg,
      var(--color-gray-dark) 0%,
      var(--color-gray) 50%,
      var(--color-gray-dark) 100%);
  background-size: 200% 100%;
  animation: skeleton 1.5s ease-in-out infinite;
}

@keyframes skeleton {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* Portfolio item lazy load reveal */
.portfolio-item {
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.portfolio-item.loaded {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Staggered portfolio items */
.portfolio-item:nth-child(1) {
  transition-delay: 0.05s;
}

.portfolio-item:nth-child(2) {
  transition-delay: 0.1s;
}

.portfolio-item:nth-child(3) {
  transition-delay: 0.15s;
}

.portfolio-item:nth-child(4) {
  transition-delay: 0.2s;
}

.portfolio-item:nth-child(5) {
  transition-delay: 0.25s;
}

.portfolio-item:nth-child(6) {
  transition-delay: 0.3s;
}

.portfolio-item:nth-child(7) {
  transition-delay: 0.35s;
}

.portfolio-item:nth-child(8) {
  transition-delay: 0.4s;
}

.portfolio-item:nth-child(9) {
  transition-delay: 0.45s;
}

.portfolio-item:nth-child(10) {
  transition-delay: 0.5s;
}

.portfolio-item:nth-child(11) {
  transition-delay: 0.55s;
}

.portfolio-item:nth-child(12) {
  transition-delay: 0.6s;
}

/* No image placeholder style */
.portfolio-item.no-image img {
  opacity: 0.5;
  filter: grayscale(100%);
}

/* ============ HERO ANIMATIONS ============ */
.hero-content {
  animation: slideUp 1s ease 0.3s forwards;
  opacity: 0;
}

.hero-logo {
  animation: zoomIn 0.8s ease 0.5s forwards;
  opacity: 0;
}

.hero-text {
  animation: fadeIn 1s ease 0.8s forwards;
  opacity: 0;
}

.hero .btn {
  animation: slideUp 0.8s ease 1s forwards;
  opacity: 0;
}

/* ============ LIGHTBOX ANIMATIONS ============ */
.lightbox-content {
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.lightbox.open .lightbox-content {
  transform: scale(1);
  animation: zoomIn 0.3s ease;
}

/* ============ BUTTON HOVER EFFECTS ============ */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

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

/* ============ SECTION TITLES ANIMATION ============ */
.section-title,
.page-title {
  position: relative;
}

.section-title::after,
.page-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin: var(--space-md) auto 0;
  transition: width 0.5s ease;
}

.section-title:hover::after,
.page-title:hover::after {
  width: 120px;
}

/* ============ CARD HOVER EFFECTS ============ */
.about-content>div,
.contact-form,
.pricing-table {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* ============ PAGE TRANSITIONS ============ */
.page-header {
  animation: slideUp 0.6s ease forwards;
}

.section {
  animation: fadeIn 0.8s ease forwards;
}

/* ============ SMOOTH SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-black);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-light);
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}