/* ============================================================
   PORTFOLIO — NATHAN SURIN / AKA KITSOUNE
   Feuille de style partagée — style.css
   ============================================================ */

/* ---- Variables & Reset ---- */
:root {
  --red: #ba0101;
  --dark-red: #420306;
  --gray: #d3d2d2;
  --white: #ffffff;
  --black: #060505;
  --nav-bg: rgba(6, 5, 5, 0.9);
  --card-bg: rgba(255, 255, 255, 0.02);
  --overlay-solid: rgba(6, 5, 5, 0.9);
  --font-h: "Arsenal", sans-serif;
  --font-sh: "Zilla Slab", serif;
  --font-b: "Fira Sans", sans-serif;
}

/* ---- Light Mode Variables ---- */
html.light-mode {
  --red: #d10000;
  --dark-red: #f4d9d9;
  --gray: #4a4a4a;
  --white: #060505;
  --black: #f9f9f9;
  --nav-bg: rgba(249, 249, 249, 0.9);
  --card-bg: rgba(0, 0, 0, 0.03);
  --overlay-solid: rgba(249, 249, 249, 0.95);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-b);
  overflow-x: hidden;
}

/* ---- Noise overlay ---- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 40px,
    rgba(186, 1, 1, 0.03) 40px,
    rgba(186, 1, 1, 0.03) 42px
  );
}

/* ---- Page flash (Persona 5 transition) ---- */
.page-flash {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: var(--red);
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: left;
}
.page-flash.out {
  animation: flashOut 0.5s cubic-bezier(0.7, 0, 0.3, 1) forwards;
}
@keyframes flashOut {
  0% {
    transform: scaleX(1);
    transform-origin: left;
  }
  50% {
    transform: scaleX(1);
    transform-origin: right;
  }
  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

/* ---- Navbar ---- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  background: var(--nav-bg);
  border-bottom: 2px solid var(--red);
  backdrop-filter: blur(12px);
}
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s;
}
.nav-logo:hover {
  opacity: 0.85;
}
.nav-logo img {
  height: 38px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 0px var(--red));
  transition: filter 0.3s;
}
.nav-logo:hover img {
  filter: drop-shadow(0 0 6px var(--red));
}
.nav-logo-text {
  font-family: var(--font-h);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  margin-left: 0.75rem;
  transition: color 0.3s;
}
.nav-logo:hover .nav-logo-text {
  color: var(--red);
}
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-h);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-links a:hover {
  color: var(--white);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-links a.active {
  color: var(--red);
}

/* ---- Nav Controls & Theme Toggle ---- */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.theme-toggle,
.lang-toggle {
  width: 28px;
  height: 42px; /* Allure de carte de tarot */
  background: rgba(186, 1, 1, 0.05);
  border: 1px solid var(--red);
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--red);
  transition: all 0.3s;
  position: relative;
}
.theme-toggle::after,
.lang-toggle::after {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1px dashed rgba(186, 1, 1, 0.35);
  border-radius: 1px;
  pointer-events: none;
}
.theme-toggle:hover,
.lang-toggle:hover {
  background: rgba(186, 1, 1, 0.15);
  box-shadow: 0 0 10px rgba(186, 1, 1, 0.3);
  transform: translateY(-2px);
}
.lang-toggle {
  font-family: var(--font-h);
  font-size: 0.85rem;
  font-weight: 700;
}
.theme-toggle svg {
  width: 16px;
  height: 16px;
  position: relative;
}
.icon-moon {
  display: none;
}
html.light-mode .icon-sun {
  display: none;
}
html.light-mode .icon-moon {
  display: block;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1100;
}
.burger span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--white);
  transition:
    transform 0.3s,
    opacity 0.3s;
}
.burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger.open span:nth-child(2) {
  opacity: 0;
}
.burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1050;
  background: var(--black);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  font-family: var(--font-h);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.mobile-menu a:hover {
  color: var(--red);
}

/* ---- Section labels & titles (shared) ---- */
.section-label {
  font-family: var(--font-h);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: "";
  display: inline-block;
  width: 30px;
  height: 2px;
  background: var(--red);
}
.section-title {
  font-family: var(--font-h);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 2.5rem;
}
.section-title em {
  color: var(--red);
  font-style: normal;
}

/* ---- Buttons ---- */
.btn-primary {
  font-family: var(--font-h);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
  background: var(--red);
  border: 2px solid var(--red);
  padding: 0.8rem 2rem;
  display: inline-block;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition:
    background 0.2s,
    color 0.2s,
    clip-path 0.2s;
}
.btn-primary:hover {
  background: transparent;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}
.btn-ghost {
  font-family: var(--font-h);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  background: transparent;
  border: 2px solid var(--gray);
  padding: 0.8rem 2rem;
  display: inline-block;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition:
    border-color 0.2s,
    color 0.2s,
    clip-path 0.2s;
}
.btn-ghost:hover {
  border-color: var(--red);
  color: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s ease,
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Diagonal separator ---- */
.diag-sep {
  position: relative;
  z-index: 1;
  height: 80px;
  overflow: hidden;
}
.diag-sep::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: -5%;
  right: -5%;
  height: 100%;
  background: rgba(186, 1, 1, 0.07);
  transform: skewY(-2deg);
}

/* ---- Footer ---- */
footer {
  position: relative;
  z-index: 1;
  background: var(--black);
  border-top: 2px solid var(--dark-red);
  padding: 2rem 1.5rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--font-h);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--white);
}
.footer-logo span {
  color: var(--red);
}
.footer-legal {
  font-family: var(--font-b);
  font-size: 0.75rem;
  color: var(--gray);
  opacity: 0.7;
  text-align: center;
}
.footer-legal a {
  color: var(--red);
  text-decoration: none;
}
.footer-legal a:hover {
  text-decoration: underline;
}
.footer-socials {
  display: flex;
  gap: 1rem;
}
.footer-socials a {
  font-family: var(--font-h);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-socials a:hover {
  color: var(--red);
}

/* ---- Back to Top ---- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  width: 40px;
  height: 40px;
  background: rgba(186, 1, 1, 0.1);
  border: 1px solid rgba(186, 1, 1, 0.3);
  color: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
}
.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: rgba(186, 1, 1, 0.3);
  border-color: var(--red);
}
.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  nav {
    padding: 0 1rem;
  }
  .nav-logo-text {
    font-size: 0.9rem;
    margin-left: 0.5rem;
    letter-spacing: 0.05em;
  }
  .nav-links {
    display: none;
  }
  .nav-controls {
    gap: 0.75rem;
  }
  .burger {
    display: flex;
  }
  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

/* ---- Custom Checkbox & Form Groups ---- */
.checkbox-group {
  margin-top: 1rem;
}
.checkbox-group input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.checkbox-label {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-family: var(--font-b);
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.5;
  cursor: pointer;
  transition: color 0.2s;
}
.checkbox-label:hover {
  color: var(--white);
}
.checkbox-label::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 1px solid rgba(186, 1, 1, 0.4);
  background: rgba(186, 1, 1, 0.05);
  border-radius: 2px;
  margin-top: 0.1rem;
  transition: all 0.2s;
}
.checkbox-group input[type="checkbox"]:checked + .checkbox-label::before {
  background: var(--red);
  border-color: var(--red);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}
.checkbox-group input[type="checkbox"]:focus-visible + .checkbox-label::before {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.form-submit-group {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ---- Modal Mentions Légales ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
  padding: 1.5rem;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.modal-content {
  background: var(--black);
  border: 1px solid var(--red);
  padding: 2.5rem 2rem;
  max-width: 800px;
  width: 100%;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.modal-overlay.open .modal-content {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  color: var(--gray);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s;
}
.modal-close:hover {
  color: var(--red);
}
.modal-content h2 {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--white);
}
.modal-content h2 em {
  color: var(--red);
  font-style: normal;
}
.modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.modal-grid p {
  font-family: var(--font-b);
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}
.modal-grid strong {
  color: var(--white);
  font-weight: 500;
}
@media (max-width: 768px) {
  .modal-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* ---- Lightbox (Zoom Image) ---- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(5px);
  padding: 2rem;
}
.lightbox-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--red);
}
.lightbox-overlay.open .lightbox-img {
  transform: scale(1);
}
.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: transparent;
  border: none;
  color: var(--gray);
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
  z-index: 3001;
}
.lightbox-close:hover {
  color: var(--red);
}
/* Change le curseur sur les images des projets */
.project-card-img,
.pcard-img,
.pcard-overlay,
.pcard-arrows {
  cursor: zoom-in;
}
.pcard-overlay a,
.pcard-arrows button {
  cursor: pointer;
}