/* GENERAL */

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap");

:root {
  /* Light theme (default) */
  --background-color: #ffffff;
  --text-color: rgb(85, 85, 85);
  --title-color: #000000;
  --accent-color: rgb(53, 53, 53);
  --card-bg: rgb(250, 250, 250);
  --card-border: rgb(163, 163, 163);
  --btn-text-hover: white;
  --nav-bg: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --loader-bg: rgba(0, 0, 0, 0.1);
  --loader-accent: rgb(53, 53, 53);
  
  /* Transition for theme switch */
  --transition-time: 0.5s;
}

[data-theme="dark"] {
  --background-color: #121212;
  --text-color: rgb(200, 200, 200);
  --title-color: #ffffff;
  --accent-color: rgb(180, 180, 180);
  --card-bg: rgb(30, 30, 30);
  --card-border: rgb(60, 60, 60);
  --btn-text-hover: #121212;
  --nav-bg: #1a1a1a;
  --shadow-color: rgba(255, 255, 255, 0.05);
  --loader-bg: rgba(255, 255, 255, 0.1);
  --loader-accent: rgb(180, 180, 180);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  overflow-x: hidden; /* Prevent horizontal scroll */
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color var(--transition-time) ease, color var(--transition-time) ease;
}

html {
  scroll-behavior: smooth;
}

p {
  color: var(--text-color);
  transition: color var(--transition-time) ease;
}

/* LOADING SCREEN */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background-color);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loader-circle {
  width: 60px;
  height: 60px;
  border: 5px solid var(--loader-bg);
  border-top: 5px solid var(--loader-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loader-text {
  margin-top: 15px;
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent-color);
  animation: pulse 1.5s ease-in-out infinite;
}

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

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.hidden {
  opacity: 0;
  visibility: hidden;
}

/* ANIMATIONS & TRANSITIONS */

a,
.btn {
  transition: transform 300ms ease, color 300ms ease;
}

/* Keyboard navigation focus styles */
.keyboard-focus {
  outline: 3px solid #4d90fe !important;
  outline-offset: 2px;
  box-shadow: 0 0 0 2px rgba(77, 144, 254, 0.5);
  border-radius: 2px;
}

/* Performance optimizations for animations */
.btn, .icon, .details-container, .color-container {
  will-change: transform, opacity;
}

/* Button animations */
.btn-hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Icon animations */
.icon-pulse {
  animation: pulse 0.5s ease-in-out;
  transform: scale(1.2);
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1.2); }
}

/* Scroll animations - optimized for performance */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.165, 0.84, 0.44, 1), transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
  backface-visibility: hidden;
}

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

/* DESKTOP NAV */

nav,
.nav-links {
  display: flex;
}

nav {
  justify-content: space-around;
  align-items: center;
  height: 17vh;
  background-color: var(--nav-bg);
  transition: background-color var(--transition-time) ease;
}

/* Theme toggle button styles */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  padding: 0;
  position: relative;
  color: var(--title-color);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--shadow-color);
  transform: scale(1.1);
}

.theme-toggle-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Show/hide icons based on theme */
[data-theme="dark"] .light-icon,
:root:not([data-theme="dark"]) .dark-icon {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5);
}

[data-theme="dark"] .dark-icon,
:root:not([data-theme="dark"]) .light-icon {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* Mobile theme toggle */
.mobile-nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  gap: 2rem;
  list-style: none;
  font-size: 1.5rem;
}

a {
  color: var(--title-color);
  text-decoration: none;
  text-decoration-color: var(--background-color);
  transition: color var(--transition-time) ease, text-decoration-color var(--transition-time) ease;
}

a:hover {
  color: var(--accent-color);
  text-decoration: underline;
  text-underline-offset: 1rem;
  text-decoration-color: var(--card-border);
  transform: translateY(-2px);
  display: inline-block;
}

.logo {
  font-size: 2rem;
}

.logo:hover {
  cursor: default;
}

/* HAMBURGER MENU */

#hamburger-nav {
  display: none;
}

.hamburger-menu {
  position: relative;
  display: inline-block;
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 24px;
  width: 30px;
  cursor: pointer;
}

.hamburger-icon span {
  width: 100%;
  height: 2px;
  background-color: var(--title-color);
  transition: all 0.3s ease-in-out, background-color var(--transition-time) ease;
}

.menu-links {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--nav-bg);
  width: fit-content;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease-in-out, background-color var(--transition-time) ease;
}

.menu-links a {
  display: block;
  padding: 10px;
  text-align: center;
  font-size: 1.5rem;
  color: var(--title-color);
  text-decoration: none;
  transition: all 0.3s ease-in-out, color var(--transition-time) ease;
}

.menu-links li {
  list-style: none;
}

.menu-links.open {
  max-height: 300px;
}

.hamburger-icon.open span:first-child {
  transform: rotate(45deg) translate(10px, 5px);
}

.hamburger-icon.open span:nth-child(2) {
  opacity: 0;
}

.hamburger-icon.open span:last-child {
  transform: rotate(-45deg) translate(10px, -5px);
}

.hamburger-icon span:first-child {
  transform: none;
}

.hamburger-icon span:first-child {
  opacity: 1;
}

.hamburger-icon span:first-child {
  transform: none;
}

/* SECTIONS */

section {
  padding-top: 4vh;
  height: 96vh;
  margin: 0 10rem;
  box-sizing: border-box;
  min-height: fit-content;
  position: relative;
  overflow: hidden;
}

/* Parallax Effects */
.parallax-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.parallax-element {
  position: absolute;
  transition: transform 0.1s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform;
}

.parallax-element.dots {
  background-image: radial-gradient(circle, var(--accent-color) 1px, transparent 1px);
  background-size: 20px 20px;
  width: 100%;
  height: 100%;
  opacity: 0.2;
  transform: translateZ(-10px) scale(2);
}

.parallax-element.circle {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background-color: var(--accent-color);
  opacity: 0.05;
  filter: blur(20px);
}

.parallax-element.circle-1 {
  top: 20%;
  left: 10%;
}

.parallax-element.circle-2 {
  bottom: 10%;
  right: 20%;
  width: 200px;
  height: 200px;
}

.parallax-element.circle-3 {
  top: 60%;
  left: 50%;
  width: 100px;
  height: 100px;
}

.section-container {
  display: flex;
}

/* PROFILE SECTION */

#profile {
  display: flex;
  justify-content: center;
  gap: 5rem;
  height: 80vh;
}

.section__pic-container {
  display: flex;
  height: 400px;
  width: 400px;
  margin: auto 0;
}

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

.section__text p {
  font-weight: 600;
}

.section__text__p1 {
  text-align: center;
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(-20px); }
  100% { opacity: 1; transform: translateY(0); }
}

.section__text__p2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.title {
  font-size: 3rem;
  text-align: center;
  animation: slideIn 1s ease-in-out;
}

@keyframes slideIn {
  0% { opacity: 0; transform: translateX(-30px); }
  100% { opacity: 1; transform: translateX(0); }
}

#socials-container {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
  gap: 1rem;
}

#socials-container .icon {
  transition: all 0.3s ease;
}

#socials-container .icon:hover {
  transform: rotate(10deg) scale(1.2);
}

/* ICONS */

.icon {
  cursor: pointer;
  height: 2rem;
}

/* Dark Mode Icon Handling */
.icon-light-mode {
  display: inline;
}

.icon-dark-mode {
  display: none;
}

[data-theme="dark"] .icon-light-mode {
  display: none;
}

[data-theme="dark"] .icon-dark-mode {
  display: inline;
}

/* Filtre pour les icônes qui n'ont pas de version dark_mode */
[data-theme="dark"] .icon:not(.icon-light-mode):not(.icon-dark-mode) {
  filter: invert(1) brightness(1.5);
}

[data-theme="dark"] .arrow.icon:not(.icon-light-mode):not(.icon-dark-mode) {
  filter: invert(1) brightness(1.5);
}

[data-theme="dark"] .project-img {
  filter: brightness(0.85) contrast(1.1);
}

/* BUTTONS */

.btn-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.btn {
  font-weight: 600;
  transition: all 300ms ease;
  padding: 1rem;
  width: 8rem;
  border-radius: 2rem;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-color-1,
.btn-color-2 {
  border: var(--accent-color) 0.1rem solid;
  transition: border var(--transition-time) ease, background var(--transition-time) ease, color var(--transition-time) ease;
}

.btn-color-1:hover,
.btn-color-2:hover {
  cursor: pointer;
}

.btn-color-1,
.btn-color-2:hover {
  background: var(--accent-color);
  color: var(--btn-text-hover);
}

.btn-color-1:hover {
  background: rgb(0, 0, 0);
}

/* Correction pour le mode sombre */
[data-theme="dark"] .btn-color-1 {
  background: var(--accent-color);
  color: var(--background-color);
  border-color: var(--accent-color);
}

[data-theme="dark"] .btn-color-1:hover {
  background: var(--title-color);
  color: var(--background-color);
  border-color: var(--title-color);
}

.btn-color-2 {
  background: none;
  color: var(--title-color);
}

.btn-color-2:hover {
  border: var(--background-color) 0.1rem solid;
}

.btn-container {
  gap: 1rem;
}

/* ABOUT SECTION */

#about {
  position: relative;
}

.about-containers {
  gap: 2rem;
  margin-bottom: 2rem;
  margin-top: 2rem;
}

.about-details-container {
  justify-content: center;
  flex-direction: column;
}

.about-containers,
.about-details-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  width: 100%;
  padding: 0 1rem;
}

.about-pic {
  border-radius: 2rem;
}

.arrow {
  position: absolute;
  right: -5rem;
  bottom: 2.5rem;
  animation: bounce 2s infinite;
}

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

.details-container {
  padding: 1.5rem;
  flex: 1;
  min-width: 250px;
  max-width: 100%;
  margin: 0.5rem;
  background: var(--background-color);
  border-radius: 2rem;
  border: var(--accent-color) 0.1rem solid;
  border-color: var(--card-border);
  text-align: center;
  transition: all 0.3s ease, background-color var(--transition-time) ease, border-color var(--transition-time) ease;
  box-sizing: border-box;
  overflow: hidden;
}

.details-container:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px var(--shadow-color);
  border-color: var(--accent-color);
}

.section-container {
  gap: 4rem;
  height: 80%;
}

.section__pic-container {
  height: 400px;
  width: 400px;
  margin: auto 0;
}

/* EXPERIENCE SECTION */

#experience {
  position: relative;
}

.experience-sub-title {
  color: rgb(85, 85, 85);
  font-weight: 600;
  font-size: 1.75rem;
  margin-bottom: 2rem;
}

.experience-details-container {
  display: flex;
  justify-content: center;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  padding: 0 1rem;
  box-sizing: border-box;
  overflow: visible;
}

.article-container {
  display: flex;
  text-align: initial;
  flex-wrap: wrap;
  flex-direction: row;
  gap: 2.5rem;
  justify-content: space-around;
}

article {
  display: flex;
  width: 10rem;
  justify-content: space-around;
  gap: 0.5rem;
}

article .icon {
  cursor: default;
}

/* PROJECTS SECTION */

#projects {
  position: relative;
}

.color-container {
  border-color: var(--card-border);
  background: var(--card-bg);
  transition: all 0.4s ease, background var(--transition-time) ease, border-color var(--transition-time) ease;
  box-sizing: border-box;
  overflow: hidden;
  margin: 0.5rem;
}

.color-container:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 25px var(--shadow-color);
}

.project-img {
  border-radius: 2rem;
  width: 90%;
  height: 90%;
  transition: all 0.5s ease;
}

.article-container:hover .project-img {
  transform: scale(1.05);
}

.project-title {
  margin: 1rem;
  color: var(--title-color);
  transition: color var(--transition-time) ease;
}

.project-btn {
  color: var(--title-color);
  border-color: var(--card-border);
  transition: color var(--transition-time) ease, border-color var(--transition-time) ease;
}

/* CONTACT */

#contact {
  display: flex;
  justify-content: center;
  flex-direction: column;
  height: 70vh;
}

.contact-info-upper-container {
  display: flex;
  justify-content: center;
  border-radius: 2rem;
  border: var(--accent-color) 0.1rem solid;
  border-color: var(--card-border);
  background: var(--card-bg);
  margin: 2rem auto;
  padding: 0.5rem;
  transition: border-color var(--transition-time) ease, background var(--transition-time) ease;
}

.contact-info-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 1rem;
}

.contact-info-container p {
  font-size: larger;
}

.contact-icon {
  cursor: default;
}

.email-icon {
  height: 2.5rem;
}

/* FOOTER SECTION */

footer {
  height: 26vh;
  margin: 0 1rem;
}

footer p {
  text-align: center;
}