/*=============== ICONS ===============*/
.icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  vertical-align: -0.125em;
  flex-shrink: 0;
}

.theme-icon--sun { display: none; }
body.dark-mode .theme-icon--moon { display: none; }
body.dark-mode .theme-icon--sun { display: inline-block; }

/*=============== VARIABLES CSS ===============*/
:root {
  --header-height: 3.5rem;

  /*========== Colors ==========*/
  /* Mode clair */
  --first-color: #007ACC;
  --first-color-light: #4A9EFF;
  --title-color: #2D3748;
  --text-color: #4A5568;
  --text-color-light: #718096;
  --body-color: #FFFFFF;
  --container-color: #F7FAFC;
  --border-color: #E2E8F0;
  --shadow-color: rgba(0, 0, 0, 0.1);

  /*========== Font and typography ==========*/
  --body-font: 'Inter', sans-serif;
  --biggest-font-size: 3rem;
  --h1-font-size: 2.25rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.813rem;

  /*========== Font weight ==========*/
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;

  /*========== z index ==========*/
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;

  /*========== Margins Bottom ==========*/
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  /*========== Transitions ==========*/
  --transition: all 0.3s ease;
}

/* Mode sombre */
body.dark-mode {
  --title-color: #F7FAFC;
  --text-color: #CBD5E0;
  --text-color-light: #A0AEC0;
  --body-color: #1A202C;
  --container-color: #2D3748;
  --border-color: #4A5568;
  --shadow-color: rgba(0, 0, 0, 0.3);
}

/*========== Responsive typography ==========*/
@media screen and (max-width: 992px) {
  :root {
    --biggest-font-size: 2.25rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813rem;
    --smaller-font-size: 0.75rem;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
  transition: var(--transition);
}

h1, h2, h3, h4 {
  color: var(--title-color);
  font-weight: var(--font-semi-bold);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.grid {
  display: grid;
}

.section {
  padding: 6rem 0 4rem;
}

.section__title {
  font-size: var(--h1-font-size);
  color: var(--title-color);
  text-align: center;
  margin-bottom: var(--mb-1);
}

.section__subtitle {
  display: block;
  font-size: var(--small-font-size);
  color: var(--text-color-light);
  text-align: center;
  margin-bottom: var(--mb-3);
}

/*=============== BUTTONS ===============*/
.button {
  display: inline-flex;
  align-items: center;
  column-gap: 0.5rem;
  background-color: var(--first-color);
  color: #fff;
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  transition: var(--transition);
  font-weight: var(--font-medium);
  text-decoration: none;
}

.button:hover {
  background-color: var(--first-color-light);
  transform: translateY(-2px);
}

.button--outline {
  background-color: transparent;
  border: 2px solid var(--first-color);
  color: var(--first-color);
}

.button--outline:hover {
  background-color: var(--first-color);
  color: #fff;
}

/*=============== HEADER & NAV ===============*/
.header {
  width: 100%;
  background-color: transparent;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  transition: var(--transition);
}

.header.scroll-header {
  background-color: var(--body-color);
  box-shadow: 0 2px 10px var(--shadow-color);
  backdrop-filter: blur(10px);
}

.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-size: 2rem;
  font-weight: bold;
}

.nav__logo .dk {
  color: var(--first-color);
}

.nav__list {
  display: flex;
  column-gap: 2rem;
}

.nav__link {
  color: var(--text-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
  position: relative;
}

.nav__link:hover,
.nav__link.active-link {
  color: var(--first-color);
}

.nav__link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -0.5rem;
  left: 0;
  background-color: var(--first-color);
  transition: var(--transition);
}

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

.nav__actions {
  display: flex;
  align-items: center;
  column-gap: 1rem;
}

.nav__toggle-lang,
.nav__toggle-theme {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  padding: 0.5rem;
  border-radius: 0.25rem;
}

.nav__toggle-lang:hover,
.nav__toggle-theme:hover {
  color: var(--first-color);
  background-color: var(--container-color);
}

.nav__toggle-lang {
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
}

.nav__toggle,
.nav__close {
  display: none;
}

/*=============== HOME ===============*/
.home {
  padding-top: calc(var(--header-height) + 4rem);
}

.home__container {
  gap: 2rem;
  grid-template-columns: repeat(2, 1fr);
  align-items: center;
}

.home__content {
  order: 1;
}

.home__data {
  text-align: left;
}

.home__title {
  font-size: var(--biggest-font-size);
  font-weight: var(--font-bold);
  margin-bottom: var(--mb-0-5);
  line-height: 1.2;
}

.home__subtitle {
  font-size: var(--h1-font-size);
  color: var(--first-color);
  font-weight: var(--font-semi-bold);
  margin-bottom: var(--mb-1);
}

.home__description {
  font-size: var(--normal-font-size);
  color: var(--text-color);
  margin-bottom: var(--mb-2);
  line-height: 1.6;
}

.home__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.home__image {
  order: 2;
  justify-self: center;
}

.home__img-bg {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--first-color), var(--first-color-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: float 3s ease-in-out infinite;
}

.home__img-bg .profile-image {
  width: calc(100% - 20px);
  height: calc(100% - 20px); 
  object-fit: cover;
  border-radius: 50%;
}


@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/*=============== TECHNOLOGIES ===============*/
.home__technologies {
  margin-top: 4rem;
  padding: 2rem 0;
}

.technologies__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  justify-items: center;
}

.technology__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  border-radius: 0.5rem;
  transition: var(--transition);
  cursor: pointer;
}

.technology__item:hover {
  transform: translateY(-5px);
}

.technology__logo {
  width: 3.5rem;
  height: 3.5rem;
  object-fit: contain;
  transition: var(--transition);
}

.technology__item:hover .technology__logo {
  transform: scale(1.1);
}

.technology__name {
  font-weight: var(--font-medium);
  color: var(--text-color);
}

/*=============== ABOUT ===============*/
.about {
  background-color: var(--container-color);
}

.about__container {
  gap: 3rem;
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
}

.about__description {
  font-size: var(--normal-font-size);
  line-height: 1.6;
  text-align: justify;
  margin-bottom: var(--mb-2);
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: var(--mb-2);
}

.stat__item {
  text-align: center;
}

.stat__number {
  display: block;
  font-size: var(--h1-font-size);
  font-weight: var(--font-bold);
  color: var(--first-color);
  margin-bottom: var(--mb-0-25);
}

.stat__text {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.experience__title {
  font-size: var(--h2-font-size);
  margin-bottom: var(--mb-1-5);
  color: var(--title-color);
}

.experience__items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.experience__item {
  background-color: var(--body-color);
  padding: 1.5rem;
  border-radius: 0.75rem;
  box-shadow: 0 2px 8px var(--shadow-color);
  transition: var(--transition);
}

.experience__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--shadow-color);
}

.experience__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--mb-0-5);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.experience__job {
  font-size: var(--h3-font-size);
  font-weight: var(--font-semi-bold);
  color: var(--title-color);
}

.experience__period {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
  background-color: var(--container-color);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
}

.experience__company {
  font-size: var(--normal-font-size);
  color: var(--first-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-5);
}

.experience__description {
  font-size: var(--small-font-size);
  color: var(--text-color);
  line-height: 1.5;
}

/*=============== PORTFOLIO ===============*/
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: var(--mb-2);
}

.portfolio__item {
  background-color: var(--container-color);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 2px 8px var(--shadow-color);
  transition: var(--transition);
}

.portfolio__item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.portfolio__img {
  height: 200px;
  overflow: hidden;
}

.portfolio__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.portfolio__image:hover {
  transform: scale(1.05);
}

.portfolio__content {
  padding: 1.5rem;
}

.portfolio__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-5);
  color: var(--title-color);
}

.portfolio__description {
  font-size: var(--small-font-size);
  color: var(--text-color);
  margin-bottom: var(--mb-1);
  line-height: 1.5;
}

.portfolio__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background-color: var(--first-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-medium);
}

.tag.app-interne {
  background-color: #FF9800;
}
.tag.offline {
  background-color: #D32F2F;
}

/*=============== CONTACT ===============*/
.contact {
  background-color: var(--container-color);
  padding: 8rem 0 8rem;
}

.contact__container {
  gap: 3rem;
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: var(--mb-2);
}

.contact__item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--first-color);
  background-color: var(--body-color);
  padding: 0.75rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px var(--shadow-color);
}

.contact__title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-25);
}

.contact__data {
  font-size: var(--small-font-size);
  color: var(--text-color);
}

.contact__social {
  display: flex;
  gap: 1rem;
  margin-top: var(--mb-1);
}

.contact__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--first-color);
  color: white;
  border-radius: 0.5rem;
  font-size: 1.25rem;
  transition: var(--transition);
}

.contact__social-link:hover {
  background-color: var(--first-color-light);
  transform: translateY(-2px);
}

/*=============== CONTACT FORM ===============*/
.contact__form {
  background-color: var(--body-color);
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 2px 8px var(--shadow-color);
}

.contact__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.contact__form-group {
  position: relative;
  margin-bottom: var(--mb-1-5);
}

.contact__input {
  width: 100%;
  background-color: transparent;
  color: var(--text-color);
  font-size: var(--normal-font-size);
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  outline: none;
  padding: 1rem;
  transition: var(--transition);
}

.contact__input:focus {
  border-color: var(--first-color);
}

.contact__textarea {
  resize: none;
  height: 120px;
}

.contact__label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: var(--normal-font-size);
  color: var(--text-color-light);
  transition: var(--transition);
  pointer-events: none;
}

.contact__input:focus + .contact__label,
.contact__input:not(:placeholder-shown) + .contact__label {
  top: -0.5rem;
  left: 0.75rem;
  font-size: var(--small-font-size);
  color: var(--first-color);
  background-color: var(--body-color);
  padding: 0 0.5rem;
}

.contact__button {
  width: 100%;
  justify-content: center;
}

.contact__message {
  margin-top: var(--mb-1);
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
  min-height: 1.2em;
}

.color-green {
  color: #2F855A;
}

.color-red {
  color: #C53030;
}

/*=============== FOOTER ===============*/
.footer {
  background-color: var(--title-color);
  color: white;
  text-align: center;
  padding: 2rem 0;
}
.dark-mode .footer {
  color: var(--body-color);
}

.footer__copy {
  font-size: var(--small-font-size);
}

/*=============== SCROLL UP ===============*/
.scrollup {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: 0.8;
  padding: 0.5rem;
  border-radius: 0.4rem;
  z-index: var(--z-tooltip);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scrollup:hover {
  background-color: var(--first-color-light);
  opacity: 1;
}

.scrollup i {
  color: white;
  font-size: 1.2rem;
}

.show-scroll {
  bottom: 5rem;
}

/*=============== SCROLL BAR ===============*/
::-webkit-scrollbar {
  width: 0.6rem;
  background-color: var(--container-color);
  border-radius: 0.5rem;
}

::-webkit-scrollbar-thumb {
  background-color: var(--first-color);
  border-radius: 0.5rem;
}

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

/*=============== BREAKPOINTS ===============*/
/* For large devices */
@media screen and (max-width: 992px) {
  .container {
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
  }

  .home__container,
  .about__container,
  .contact__container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .home__image {
    order: 1;
  }

  .home__content {
    order: 2;
    text-align: center;
  }

  .home__img-bg {
    width: 250px;
    height: 250px;
  }

  .home__img-placeholder {
    width: 230px;
    height: 230px;
  }

  .technologies__grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 1.5rem;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .portfolio__grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

/* For medium devices */
@media screen and (max-width: 768px) {
  .nav__menu {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: var(--body-color);
    padding: 2rem 1.5rem 4rem;
    box-shadow: 0 -1px 4px var(--shadow-color);
    border-radius: 1.5rem 1.5rem 0 0;
    transition: var(--transition);
  }

  .nav__menu.show-menu {
    bottom: 0;
  }

  .nav__list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }

  .nav__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
  }

  .nav__link:hover {
    color: var(--first-color);
  }

  .nav__close {
    position: absolute;
    right: 1.3rem;
    bottom: 0.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--first-color);
    display: block;
  }

  .nav__close:hover {
    color: var(--first-color-light);
  }

  .nav__toggle {
    font-size: 1.1rem;
    cursor: pointer;
    display: block;
    color: var(--text-color);
  }

  .nav__toggle:hover {
    color: var(--first-color);
  }

  .section {
    padding: 4rem 0 2rem;
  }

  .home {
    padding-top: calc(var(--header-height) + 1rem);
  }

  .home__data {
    text-align: center;
  }

  .home__buttons {
    justify-content: center;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .experience__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .technologies__grid {
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: 1rem;
  }

  .technology__icon {
    width: 50px;
    height: 50px;
  }
}

/* For small devices */
@media screen and (max-width: 350px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }

  .home__img-bg {
    width: 200px;
    height: 200px;
  }

  .home__img-placeholder {
    width: 180px;
    height: 180px;
  }

  .about__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .technologies__grid {
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
  }

  .technology__icon {
    width: 40px;
    height: 40px;
    font-size: 0.75rem;
  }

  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .nav__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}