/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --background: #121e28;
  --foreground: #ffffff;
  --primary: #251F3D;
  --primary-foreground: #f5d6c7;
  --muted-primary: #997767;
  --accent: #b3a4ff;
  --muted-accent: #342b63;
  --font-outfit: 'Outfit', sans-serif;
}

/* ===== Light Theme ===== */
[data-theme="light"] {
  --background: #f5f0eb;
  --foreground: #1a1a2e;
  --primary: #ffffff;
  --primary-foreground: #2d2438;
  --muted-primary: #9a8a7a;
  --accent: #6c5ce7;
  --muted-accent: #edeaff;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-outfit);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  max-width: 100vw;
  overflow-x: hidden;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ===== Utility Classes ===== */
.container {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.w-full { width: 100%; }
.grow { flex-grow: 1; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.mx-auto { margin-left: auto; margin-right: auto; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.gap-1 { gap: 0.25rem; }
.gap-1\\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }
.order-2 { order: 2; }
.pt-1 { padding-top: 0.25rem; }

/* ===== Main Layout ===== */
.main-wrapper {
  width: 100%;
  flex-grow: 1;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 1rem;
}

@media (min-width: 768px) {
  .main-wrapper {
    font-size: 1.125rem;
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1280px) {
  .main-wrapper {
    font-size: 1.25rem;
  }
}

/* ===== Header / Hero ===== */
.hero-section {
  text-align: center;
  margin: 0 auto;
  padding: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.profile-image-wrapper {
  aspect-ratio: 1 / 1;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: var(--accent);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-image-wrapper img {
  width: auto;
  height: 100%;
}

@media (min-width: 768px) {
  .profile-image-wrapper {
    width: 10rem;
    height: 10rem;
  }
}

.hero-greeting {
  font-size: 1.125rem;
}

@media (min-width: 768px) {
  .hero-greeting { font-size: 1.5rem; }
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.1;
}

@media (min-width: 768px) {
  .hero-title { font-size: 4.5rem; }
}

.hero-based {
  font-size: 0.875rem;
  color: var(--accent);
  opacity: 0.5;
}

@media (min-width: 768px) {
  .hero-based { font-size: 1.125rem; }
}

.hero-specialty {
  font-size: 1.125rem;
}

@media (min-width: 768px) {
  .hero-specialty { font-size: 1.5rem; }
}

/* ===== Social Links ===== */
.social-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
}

.social-links svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ===== Section Titles ===== */
.section-title {
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--accent);
}

@media (min-width: 768px) {
  .section-title { font-size: 4.5rem; }
}

/* ===== Chip Component ===== */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  height: 1.75rem;
  padding: 0 1rem;
  border-radius: 9999px;
  border: 1px solid;
  font-size: 0.875rem;
  line-height: 1;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.chip-solid {
  border-style: solid;
}

.chip-solid:hover {
  background: var(--muted-accent);
  border-color: var(--accent);
  cursor: pointer;
}

.chip-dashed {
  border-style: dashed;
}

.chip svg {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
}

/* ===== Project Card ===== */
.project-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border: 1px solid;
  border-radius: 1rem;
  gap: 1rem;
  line-height: 1.25;
}

@media (min-width: 768px) {
  .project-card {
    flex-direction: row-reverse;
  }
}

.project-card-image {
  border-radius: 0.5rem;
  max-height: 24rem;
  overflow: hidden;
  width: 100%;
}

.project-card-image img {
  width: 100%;
  height: auto;
}

.project-card-title {
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-card-desc {
  font-weight: 300;
}

.project-card-stack {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

/* Stack chips per project: border at ~70% opacity (text stays opaque) */
.project-card-stack .chip {
  border-color: color-mix(in srgb, currentColor 70%, transparent);
}

.project-card-body {
  display: flex;
  flex-direction: column;
}

.project-card-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 1rem;
}

/* ===== Sections ===== */
.section {
  text-align: center;
  margin: 0 auto;
  padding: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

.section-projects {
  width: 100%;
}

/* ===== Footer ===== */
.site-footer {
  font-size: 0.75rem;
  color: var(--accent);
  text-align: center;
  margin: 0 auto;
  padding: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

/* ===== Scroll Animation ===== */
.scroll-animate {
  transition: all 2s ease-out;
}

.scroll-animate-hidden {
  opacity: 0;
  transform: translateY(2.5rem);
}

.scroll-animate-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Loading ===== */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 50vh;
  color: var(--muted-primary);
  font-size: 1.25rem;
}

/* ===== Top Controls (Language + Theme Toggle) ===== */
.top-controls {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ===== Hamburger (mobile only) ===== */
.hamburger-btn {
  display: none;
}

/* ===== Language Toggle ===== */
.lang-toggle {
  display: flex;
  background: var(--muted-accent);
  border: 1px solid var(--accent);
  border-radius: 9999px;
  overflow: hidden;
  height: 2rem;
  align-items: center;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 0.85rem;
  font-family: var(--font-outfit);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.5;
  transition: all 0.3s ease;
  line-height: 1;
  height: 100%;
  display: flex;
  align-items: center;
}

.lang-btn.active {
  background: var(--accent);
  color: var(--background);
  opacity: 1;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
}

.theme-toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
}

.toggle-track {
  display: inline-block;
  position: relative;
  width: 4.5rem;
  height: 2rem;
  background: var(--muted-accent);
  border: 1px solid var(--accent);
  border-radius: 9999px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.toggle-track .toggle-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 1.125rem;
  height: 1.125rem;
  z-index: 2;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-track .toggle-icon svg {
  width: 100%;
  height: 100%;
}

/* Active icon = white, inactive = dimmed accent */
.toggle-track .icon-moon {
  left: 0.4rem;
}
.toggle-track .icon-sun {
  right: 0.4rem;
}
[data-theme="dark"] .toggle-track .icon-moon {
  color: var(--background);
  opacity: 1;
}
[data-theme="dark"] .toggle-track .icon-sun {
  color: var(--accent);
  opacity: 0.4;
}
[data-theme="light"] .toggle-track .icon-moon {
  color: var(--accent);
  opacity: 0.4;
}
[data-theme="light"] .toggle-track .icon-sun {
  color: #ffffff;
  opacity: 1;
}

.toggle-thumb {
  position: absolute;
  top: 50%;
  left: 0.2rem;
  transform: translateY(-50%);
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--accent);
  z-index: 1;
  transition: left 0.3s ease-out;
}

[data-theme="light"] .toggle-thumb {
  left: calc(100% - 1.5rem - 0.2rem);
}

/* ===== Responsive adjustments ===== */
@media (max-width: 767px) {
  .hamburger-btn {
    display: flex;
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 20;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--muted-primary);
    width: 2.5rem;
    height: 2.5rem;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  }

  .hamburger-btn.open {
    background: var(--muted-accent);
    border-color: var(--accent);
    color: var(--accent);
  }

  .hamburger-btn svg {
    width: 1.5rem;
    height: 1.5rem;
  }

  .top-controls {
    display: none;
    position: absolute;
    top: calc(1rem + 3rem);
    right: 1rem;
    z-index: 20;
    background: var(--muted-accent);
    border: 1px solid var(--accent);
    border-radius: 0.75rem;
    padding: 0.75rem;
    flex-direction: column;
    gap: 0.75rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  }

  .top-controls.open {
    display: flex;
  }

  .top-controls .theme-toggle {
    display: flex;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: 0;
    padding-right: 0;
  }
}