/* Root variables */
:root {
  --bg: #ffffff;
  --text: #000000;
  --muted: #7F8C8D;
  --accent: #4CAF50;
  --nav-accent: #ff6b35;
  --section-bg: #bae094;
  --card-shadow: 0 6px 18px rgba(44,62,80,0.06);
  --radius: 12px;
}

/* Basic reset & base styles */
* {
  box-sizing: border-box;
}
html, body {
  height: 100%;
}
body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, "Helvetica Neue", Arial;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  font-size: 16px;
  padding-top: 72px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: static;
  width: auto;
  height: auto;
  padding: .5rem;
  background: #000;
  color: #fff;
  z-index: 9999;
}

/* ===== NAVIGATION ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8rem 0;
}
.brand .logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
}
.logo-navy {
  font-weight: 700;
  color: var(--text);
  font-family: 'Montserrat', sans-serif;
}
.logo-orange {
  font-weight: 700;
  color: var(--nav-accent);
  font-family: 'Montserrat', sans-serif;
}
.logo-icon {
  color: var(--nav-accent);
  margin-left: 6px;
}

.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.1rem;
  align-items: center;
}

.nav-menu li a {
  color: var(--text);
  text-decoration: none;
  padding: .5rem;
  transition: all .2s;
}
.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--nav-accent);
  background-color: rgba(255, 107, 53, 0.15);
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
}
.nav-cta .btn {
  margin-left: 1rem;
}

.hamburger {
  display: block;
  background: none;
  border: 0;
  cursor: pointer;
}
.hamburger .hamburger-line {
  width: 26px;
  height: 3px;
  background: var(--text);
  display: block;
  border-radius: 3px;
  position: relative;
}
.hamburger .hamburger-line::after,
.hamburger .hamburger-line::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--text);
}
.hamburger .hamburger-line::before { top: -8px; }
.hamburger .hamburger-line::after { top: 8px; }

#nav-menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 72px;
  right: 16px;
  background: rgba(26,54,93,0.95);
  padding: 1rem;
  border-radius: 10px;
  box-shadow: var(--card-shadow);
}
#nav-menu.open {
  display: flex;
}
#nav-menu li a {
  color: #fff;
  padding: .6rem 0;
  display: block;
}

@media (min-width: 768px) {
  .hamburger { display: none; }
  #nav-menu {
    display: flex !important;
    flex-direction: row !important;
    position: static !important;
    background: transparent !important;
    padding: 0 !important;
    box-shadow: none !important;
  }
  #nav-menu li a {
    color: var(--text) !important;
    padding: .5rem;
    display: inline-block;
  }
  .nav-menu { display: flex; gap: 1.1rem; align-items: center; }
}

/* ===== HERO ===== */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  padding: 3rem 1rem;
  background: linear-gradient(180deg, #fff 0%, #fff 100%);
}
.eyebrow {
  font-weight: 600;
  color: var(--nav-accent);
  letter-spacing: 1px;
  margin: 0 0 .6rem;
}
.hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  margin: .1rem 0;
}
.hero-sub {
  margin: .5rem 0;
  color: var(--muted);
  font-weight: 600;
}
.lead {
  color: var(--text);
  max-width: 46ch;
  margin-top: 1rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.3rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .6rem 1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary {
  background: var(--nav-accent);
  color: #fff;
}
.btn-ghost {
  background: #f1f1f1;
  color: var(--text);
  border-color: transparent;
}
.btn-outline {
  background: transparent;
  border: 1px solid #e6e6e6;
  color: var(--text);
}

.headshot {
  width: 100%;
  max-width: 420px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: var(--card-shadow);
}

.settings-cta {
  position: fixed;
  left: 1rem;
  bottom: 1rem;
  background: #222;
  color: #fff;
  border-radius: 999px;
  padding: .6rem;
  border: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
  z-index: 90;
}

/* SECTIONS */
.section {
  padding: 3rem 1rem;
}
.section-alt {
  background: var(--section-bg);
}
.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  margin-bottom: .6rem;
  color: var(--text);
}
.section-sub {
  color: var(--muted);
  margin-bottom: 1rem;
}

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
}
.about-text p {
  margin-top: 0;
}
.interests {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}
.interests li {
  display: flex;
  gap: .6rem;
  align-items: center;
  background: #fff;
  padding: .5rem .7rem;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  font-size: .95rem;
}

/* SKILLS */
.skills-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.tab-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  background: var(--bg-alt, #f1f1f1);
  color: var(--text);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease;
}
.tab-btn.active {
  background: #7b5cff;
  color: white;
}
.tab-btn:hover {
  background: rgba(123, 92, 255, 0.8);
}
.skills-content {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}
.skill-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 2.5rem;
  transition: transform 0.3s ease;
}
.skill-icon i,
.skill-icon img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  color: var(--text);
}
.skill-icon p {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  color: var(--text);
}
.skill-icon:hover {
  transform: translateY(-6px);
}
.tab-content {
  display: none;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}
.tab-content.active {
  display: flex;
}

/* PROJECTS */
.projects-grid {
  display: grid;
  gap: 1rem;
}
.project-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.project-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.project-body {
  padding: 1rem;
}
.project-actions {
  margin-top: 1rem;
}
.tech {
  color: var(--muted);
  font-size: .9rem;
}

/* EXPERIENCE */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
}
.timeline li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}
.timeline-date {
  min-width: 110px;
  color: var(--muted);
  font-weight: 600;
}

/* CERTIFICATES */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}
.cert-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.2rem;
  border-radius: 12px;
  background: var(--bg);
  box-shadow: var(--card-shadow);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.12);
}
.cert-card img {
  height: 140px;
  width: auto;
  border-radius: 8px;
  margin-bottom: 1rem;
  object-fit: cover;
}
.cert-body h4 {
  margin: 0.5rem 0 0.3rem;
  font-size: 1.2rem;
  color: var(--text);
}
.cert-date {
  color: var(--muted);
}
.cert-card .btn {
  margin-top: 0.8rem;
  font-size: 0.9rem;
  padding: 0.4rem 0.8rem;
}

/* CONTACT */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  font-size: 1rem;
}
.contact-list a {
  color: var(--text);
  text-decoration: none;
}
.contact-list a:hover {
  color: var(--nav-accent);
}
.contact-form {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
}
.contact-form .form-group {
  margin-bottom: 1rem;
}
.contact-form label {
  font-weight: 600;
  display: block;
  margin-bottom: 0.4rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid #ddd;
  font-size: 1rem;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--nav-accent);
  box-shadow: 0 0 5px rgba(255,107,53,0.4);
}
.contact-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* HIRE ME */
.hire-me {
  background: linear-gradient(90deg, #ff6b35, #ff9966);
  color: #fff;
  padding: 3rem 1.5rem;
  max-width: 1100px;
  margin: 3rem auto 5rem;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.hire-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.hire-text {
  text-align: center;
  max-width: 650px;
}
.hire-text h2 {
  font-size: 2rem;
  font-weight: 700;
}
.highlight-text {
  color: #ffd700;
}
.highlight-link {
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
}
.hire-buttons {
  margin-top: 1.2rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hire-buttons .btn-light {
  background: #fff;
  color: #000;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}
.hire-buttons .btn-dark {
  background: rgba(0,0,0,0.25);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}
.hire-buttons a:hover {
  opacity: 0.9;
}
.hire-image img {
  max-width: 420px;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
}
@media (min-width: 768px) {
  .hire-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .hire-text {
    text-align: left;
  }
}

/* FOOTER */
.site-footer {
  background: var(--text);
  color: #fff;
  padding: 1rem 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* RESPONSIVE LAYOUTS */
@media (min-width: 768px) {
  .hero {
    grid-template-columns: 1fr 480px;
    align-items: center;
    padding: 4rem 0;
  }
  .about-grid {
    grid-template-columns: 1fr 360px;
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .hero-title {
    font-size: 2.6rem;
  }
  .hero-sub {
    font-size: 1.25rem;
  }
  .logo-navy, .logo-orange {
    font-size: 1.1rem;
  }
}

/* THEME TOGGLE BUTTON */
#theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--text);
  margin-left: 1rem;
}
#theme-toggle:hover {
  transform: scale(1.1);
  transition: transform 0.2s ease;
}

/* DARK MODE STYLES */
body.dark-mode {
  --bg: #121212;
  --text: #f5f5f5;
  --muted: #b0b0b0;
  --section-bg: #1e1e1e;
  --card-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
}

/* Header in Dark Mode */
body.dark-mode .site-header {
  background-color: #1f1f1f;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}
body.dark-mode .nav-link {
  color: #f5f5f5;
}
body.dark-mode .nav-link:hover,
body.dark-mode .nav-link.active {
  color: var(--nav-accent);
  background-color: rgba(255, 107, 53, 0.25);
}
body.dark-mode .hamburger-line,
body.dark-mode .hamburger-line::before,
body.dark-mode .hamburger-line::after {
  background: #f5f5f5;
}

/* Hero Section in Dark Mode */
body.dark-mode .hero {
  background: linear-gradient(180deg, #1a1a1a 0%, #121212 100%);
}
body.dark-mode .hero .eyebrow {
  color: #ff5722;
}
body.dark-mode .hero-title,
body.dark-mode .hero-sub,
body.dark-mode .hero .lead {
  color: #f5f5f5;
}
body.dark-mode .hero-sub .highlight {
  color: #ff9800;
}
body.dark-mode .hero .btn-primary {
  background-color: #ff5722;
  color: #ffffff;
}
body.dark-mode .hero .btn-ghost {
  background: transparent;
  border: 1px solid #ff5722;
  color: #ff5722;
}

/* About Section in Dark Mode */
body.dark-mode .about-grid {
  background-color: #121212;
}
body.dark-mode .about-text p,
body.dark-mode .interests li {
  color: #e0e0e0;
}
body.dark-mode .interests li {
  background-color: #1e1e1e;
}
body.dark-mode .interests li i {
  color: #ff9800;
}

/* Skills Section in Dark Mode */
body.dark-mode .skills-content {
  background-color: #121212;
}
body.dark-mode .skill-icon p {
  color: #e0e0e0;
}
body.dark-mode .skill-icon i {
  color: #f5f5f5;
}
body.dark-mode .skill-icon img {
  filter: brightness(1.5);
}
body.dark-mode .tab-btn {
  background: #1e1e1e;
  color: #f5f5f5;
}
body.dark-mode .tab-btn.active {
  background: #7b5cff;
  color: #ffffff;
}
body.dark-mode .tab-btn:hover {
  background: rgba(123, 92, 255, 0.8);
}

/* Projects Section in Dark Mode */
body.dark-mode .project-card {
  background-color: #1e1e1e;
  border: 1px solid #333;
}
body.dark-mode .project-body h3 {
  color: #ffcc00;
}
body.dark-mode .project-body p {
  color: #e0e0e0;
}
body.dark-mode .tech {
  color: #b0b0b0;
}

/* Experience Section in Dark Mode */
body.dark-mode .section-alt {
  background-color: #1e1e1e;
}
body.dark-mode .timeline-date,
body.dark-mode .timeline-content p {
  color: #e0e0e0;
}
body.dark-mode .timeline li {
  border-bottom: 1px solid #333;
}

/* Certificates Section in Dark Mode */
body.dark-mode .cert-card {
  background-color: #1e1e1e;
}
body.dark-mode .cert-body h4 {
  color: #ffcc00;
}
body.dark-mode .cert-date {
  color: #b0b0b0;
}

/* Contact Section in Dark Mode */
body.dark-mode .contact-form {
  background-color: #1e1e1e;
}
body.dark-mode .contact-list a,
body.dark-mode .contact-info p {
  color: #e0e0e0;
}
body.dark-mode .contact-list a:hover {
  color: #ff5722;
}
body.dark-mode .contact-form input,
body.dark-mode .contact-form textarea {
  background-color: #2a2a2a;
  border: 1px solid #444;
  color: #f5f5f5;
}
body.dark-mode .contact-form input:focus,
body.dark-mode .contact-form textarea:focus {
  border-color: #ff5722;
  box-shadow: 0 0 5px rgba(255, 107, 53, 0.4);
}

/* Hire Me Section in Dark Mode */
body.dark-mode .hire-me {
  background: linear-gradient(90deg, #ff5722, #ff9966);
}
body.dark-mode .hire-text p {
  color: #f5f5f5;
}
body.dark-mode .hire-buttons .btn-light {
  background: #ffffff;
  color: #000000;
}
body.dark-mode .hire-buttons .btn-dark {
  background: rgba(0, 0, 0, 0.4);
  color: #ffffff;
}

/* Footer in Dark Mode */
body.dark-mode .site-footer {
  background-color: #1f1f1f;
}
body.dark-mode .socials a {
  color: #f5f5f5;
}
body.dark-mode .socials a:hover {
  color: #ff5722;
}