@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #555555;
  --border: #d5d5d5;
  --card: #fafafa;
  --accent: #353535;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-2: 0 2px 8px rgba(0, 0, 0, 0.15);
  --primary-accent: #6aa6ff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  max-width: 100%;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Poppins", sans-serif;
  background: var(--bg);
  color: var(--text);
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--text);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 0.5rem;
}

p {
  color: var(--muted);
  line-height: 1.6;
}

.title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 1rem;
}

.section__text__p1 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--primary-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
}

.section__text__p2 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 2rem;
}

h3 {
  font-weight: 600;
  color: var(--text);
  font-size: 1.1rem;
}

.icon {
  height: 2rem;
  width: 2rem;
  object-fit: contain;
  cursor: pointer;
}
.icon.arrow {
  position: absolute;
  right: -5rem;
  bottom: 2.5rem;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--accent);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1001;
}

.skip-link:focus {
  top: 6px;
}

/* NAV */
.site-nav {
  width: 100%;
  background: transparent;
}
.site-nav .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  font-size: 1.125rem;
}

.nav-links a:focus,
.hamburger-icon:focus {
  outline: 2px solid var(--primary-accent);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
}
.theme-toggle input {
  position: absolute;
  opacity: 0;
}
.toggle-label {
  position: relative;
  width: 56px;
  height: 28px;
  border-radius: 28px;
  background: #e8e8e8;
  cursor: pointer;
  display: inline-block;
}

.toggle-ball {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.3s;
}

#theme-toggle-checkbox:checked + .toggle-label .toggle-ball,
#mobile-theme-toggle-checkbox:checked + .toggle-label .toggle-ball {
  transform: translateX(28px);
}

#theme-toggle-checkbox:checked + .toggle-label,
#mobile-theme-toggle-checkbox:checked + .toggle-label {
  background: #7d7d7d;
}

/* HAMBURGER - FIXED FOR VISIBILITY */
#hamburger-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#hamburger-nav .nav-inner {
  height: 58px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: #333;
  border: 0;
  padding: 10px;
  cursor: pointer;
  position: relative;
  z-index: 1001;
  border-radius: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hamburger-icon:hover {
  background: #222;
  transform: scale(1.05);
}

.hamburger-icon span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  margin: 2px 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
}

.hamburger-icon.open {
  background: #ff4444;
}

.hamburger-icon.open:hover {
  background: #ff3333;
}

.hamburger-icon.open span:first-child {
  transform: rotate(45deg) translate(4px, 4px);
}

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

.hamburger-icon.open span:last-child {
  transform: rotate(-45deg) translate(4px, -4px);
}

.menu-links {
  position: fixed;
  top: 58px;
  right: 0;
  width: min(90vw, 340px);
  max-height: calc(100vh - 58px);
  background: var(--bg);
  border-radius: 0 0 0 16px;
  box-shadow: -2px 2px 20px rgba(0, 0, 0, 0.15);
  transform: translateX(100%);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  z-index: 1000;
}

.menu-links.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.menu-links ul {
  list-style: none;
  padding: 1rem;
  margin: 0;
}

.menu-links li {
  margin-bottom: 0.5rem;
}

.menu-links li:last-child {
  margin-bottom: 0;
}

.menu-links a {
  display: block;
  padding: 1rem 1.5rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  transition: all 0.2s ease;
  border-radius: 8px;
  margin: 0.25rem 0;
}

.menu-links a:hover {
  background: var(--primary-accent);
  color: white;
  text-decoration: none;
}

.theme-toggle-item {
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  margin-top: 1rem;
  padding-top: 1.5rem;
}

.theme-toggle-item::before {
  content: "Dark Mode";
  font-weight: 600;
  color: var(--text);
}

/* Mobile navigation backdrop */
.menu-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 999;
}

.menu-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* LAYOUT */
main {
  padding-top: 64px;
}
section {
  padding-top: 4vh;
  min-height: fit-content;
  margin: 0 10rem;
  box-sizing: border-box;
}

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

/* HERO / PROFILE */
#profile {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5rem;
  min-height: 80vh;
}

#profile .section__pic-container {
  width: 420px;
  height: 420px;
  margin: 0;
}

#profile .section__pic-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: var(--shadow-2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#profile .section__pic-container img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.section__text {
  text-align: center;
}

/* Socials row under buttons */
#socials-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

#socials-container .icon {
  height: 2.2rem;
  width: 2.2rem;
  min-width: 44px;
  min-height: 44px;
  transition: transform 0.2s ease;
}

#socials-container .icon:hover {
  transform: translateY(-2px);
}

/* ABOUT */
#about {
  position: relative;
}

#about .section-container {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 3rem;
  align-items: center;
}

#about .section__pic-container {
  width: 420px;
  height: 420px;
  margin: 0 auto;
}

.about-pic {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.about-details-container {
  display: block;
}

.about-containers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 0 auto 2rem auto;
  max-width: 1100px;
  justify-items: stretch;
}

.details-container {
  flex: initial;
  padding: 2rem 1.5rem;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.details-container:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.details-container .icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem auto;
}

#about .text-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

/* EXPERIENCE */
#experience {
  position: relative;
}

.experience-sub-title {
  color: var(--text);
  font-weight: 600;
  font-size: 1.6rem;
  margin-bottom: 2rem;
  text-align: center;
}

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

.article-containers {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

article {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 120px;
  padding: 1rem;
  border-radius: 8px;
}

.skill-icon {
  width: 48px !important;
  height: 48px !important;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  cursor: default;
}

/* PROJECTS */
#projects {
  position: relative;
}

#projects .about-containers {
  display: block;
}

.color-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  min-height: 450px;
}

.article-container {
  flex: 1;
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.project-img {
  border-radius: 1rem;
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-title {
  margin: 1rem;
  color: var(--text);
  text-align: center;
}

.project-description {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 1rem 1.5rem 1rem;
  text-align: center;
  flex-grow: 1;
}

.projects-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.projects-row {
  display: flex;
  gap: 2rem;
  justify-content: center;
  width: 100%;
  margin-bottom: 2rem;
}

.details-container.color-container {
  max-width: 420px;
  min-width: 280px;
  width: 100%;
}

.project-card-center {
  margin: 0 auto;
}

.project-btn {
  border-color: #505050;
  font-weight: 600;
  min-width: 120px;
  transition: all 0.2s ease;
}

.project-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* CONTACT */
#contact {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 60vh;
}

.contact-info-upper-container {
  max-width: 640px;
  margin: 2rem auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-radius: 1rem;
}

.contact-info-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.2s ease;
  overflow: hidden;
  min-height: 60px;
}

.contact-info-container:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.contact-icon {
  height: 1.8rem;
  width: 1.8rem;
  object-fit: contain;
  flex-shrink: 0;
}

.contact-info-container p {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin: 0;
}

.contact-info-container a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1.2;
}

.contact-info-container a:hover {
  color: var(--primary-accent);
  text-decoration: none;
  transform: translateY(-2px);
  display: inline-block;
}

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

.btn {
  font-weight: 600;
  padding: 1rem;
  width: 8rem;
  border-radius: 2rem;
  border: 2px solid var(--accent);
  background: transparent;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s;
  min-height: 44px;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
  background: var(--accent);
  color: #fff;
}

/* FOOTER */
footer {
  margin: 2rem 1rem;
  padding: 1rem 0;
}

footer .nav-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

footer .nav-links a {
  font-size: 1.05rem;
  padding: 0.5rem 0.75rem;
}

footer p {
  text-align: center;
  margin-top: 1rem;
}

/* DARK MODE */
.dark-mode {
  --bg: #121212;
  --text: #f0f0f0;
  --muted: #d0d0d0;
  --card: #1f1f1f;
  --border: #444;
  --accent: #f0f0f0;
}

.dark-mode a {
  color: var(--text);
}

.dark-mode #hamburger-nav {
  background: rgba(18, 18, 18, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
}

.dark-mode .hamburger-icon {
  background: #f0f0f0;
}

.dark-mode .hamburger-icon:hover {
  background: #e0e0e0;
  transform: scale(1.05);
}

.dark-mode .hamburger-icon span {
  background: #333;
}

.dark-mode .hamburger-icon.open {
  background: #ff4444;
}

.dark-mode .hamburger-icon.open:hover {
  background: #ff3333;
}

.dark-mode .hamburger-icon.open span {
  background: #fff;
}

.dark-mode .menu-links {
  background: var(--bg);
  box-shadow: -2px 2px 20px rgba(0, 0, 0, 0.5);
}

.dark-mode .details-container {
  background: #2a2a2a;
}

.dark-mode .btn {
  box-shadow: 0 0 5px rgba(255, 255, 255, 0.25);
}

.dark-mode .btn:hover {
  background: #505050;
  color: #fff;
}

.dark-mode .project-btn {
  border-color: #fff;
  color: #fff;
}

.dark-mode .icon.arrow {
  filter: invert(1);
}
.dark-mode .contact-icon {
  filter: invert(1);
}
.dark-mode #socials-container .icon {
  filter: invert(1);
}

.dark-mode .skill-icon[src*="express"],
.dark-mode .skill-icon[src*="github"] {
  filter: invert(1) drop-shadow(0 2px 4px rgba(255, 255, 255, 0.1));
}

/* ACCESSIBILITY */
:focus-visible {
  outline: 3px solid var(--primary-accent);
  outline-offset: 2px;
}

/* UTILS */
body.menu-open {
  overflow: hidden;
}