/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #111111;
  --surface: #1a1a1a;
  --border: #2a2a2a;
  --text: #e5e5e5;
  --muted: #888888;
  --blue: #4a9eff;
  --blue-dim: rgba(74, 158, 255, 0.12);
  --radius: 8px;
  --transition: 0.2s ease;
}

/* LIGHT THEME */
body.light {
  --bg: #f5f5f5;
  --surface: #ffffff;
  --border: #dddddd;
  --text: #111111;
  --muted: #555555;
  --blue: #1a6fd4;
  --blue-dim: rgba(26, 111, 212, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.8;
}

/* ===========================
   THEME TOGGLE BUTTON
=========================== */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 999;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition), transform var(--transition);
}

.theme-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: rotate(15deg) scale(1.08);
}

/* ===========================
   LAYOUT
=========================== */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.section {
  margin-top: 52px;
}

/* ===========================
   HERO
=========================== */
.hero {
  text-align: left;
  padding-bottom: 8px;
}

/* AVATAR */
.avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  margin: 0 0 20px 0;
  overflow: hidden;
  box-shadow: 0 0 0 4px rgba(74, 158, 255, 0.2);
  background: #1a1a1a;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.hero h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.aka {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--muted);
}

.location {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 4px;
}

.pin {
  margin-right: 2px;
}

.role {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
}

/* ===========================
   UTILITY
=========================== */
.blue {
  color: var(--blue);
}

/* ===========================
   SOCIAL BUTTONS
=========================== */
.social-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition), transform var(--transition);
}

.btn:hover {
  border-color: var(--blue);
  background: var(--blue-dim);
  color: var(--blue);
  transform: translateY(-1px);
  opacity: 1;
}

.btn svg {
  flex-shrink: 0;
}

/* ===========================
   SECTION TITLES
=========================== */
.section-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.hint {
  font-weight: 400;
  font-size: 13px;
  color: var(--muted);
}

/* ===========================
   CAREER OBJECTIVE
=========================== */
.objective-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
  border-left: 2px solid var(--blue);
  padding-left: 14px;
}

/* ===========================
   SKILL PILLS
=========================== */
.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.pill:hover {
  border-color: var(--blue);
  color: var(--text);
}

.pill.active {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-dim);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  transition: background var(--transition);
}

.pill.active .dot {
  background: var(--blue);
}

/* ===========================
   PROJECTS
=========================== */
.projects {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.project-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: opacity var(--transition);
}

.project-row:first-child {
  border-top: 1px solid var(--border);
}

.project-row.hidden {
  display: none;
}

.project-left {
  flex: 1;
  min-width: 0;
}

.project-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.project-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 12px;
}

.project-built {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}

.built-label {
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.05em;
  margin-right: 2px;
}

.tag {
  padding: 2px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-size: 12px;
  background: var(--surface);
}

.project-right {
  flex-shrink: 0;
  margin-top: 2px;
}

.project-logo {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}

/* ===========================
   EDUCATION
=========================== */
.edu-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.edu-degree {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.edu-school {
  font-size: 13px;
  color: var(--muted);
}

.edu-right {
  text-align: right;
  flex-shrink: 0;
}

.edu-year {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 2px;
}

.edu-cgpa {
  font-size: 13px;
  color: var(--blue);
  font-weight: 600;
}

/* ===========================
   CERTIFICATIONS
=========================== */
.cert-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.cert-row:first-of-type {
  border-top: 1px solid var(--border);
}

.cert-icon {
  font-size: 22px;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}

.cert-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.cert-issuer {
  font-size: 12px;
  color: var(--muted);
}

/* ===========================
   ACHIEVEMENTS
=========================== */
.achievements-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.achievements-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

.blue-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  flex-shrink: 0;
  margin-top: 6px;
}

.ach-title {
  color: var(--text);
  font-weight: 600;
}

/* ===========================
   FOOTER
=========================== */
.footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.footer-email {
  font-size: 13px;
  color: var(--muted);
}

/* ===========================
   RESPONSIVE — MOBILE
=========================== */
@media (max-width: 600px) {
  .container {
    padding: 32px 16px 48px;
  }

  .hero h1 {
    font-size: 20px;
  }

  .avatar {
    width: 88px;
    height: 88px;
  }

  .social-buttons {
    gap: 8px;
  }

  .btn {
    padding: 7px 13px;
    font-size: 12px;
  }

  .project-row {
    flex-direction: column-reverse;
    gap: 12px;
  }

  .project-right {
    align-self: flex-end;
  }

  .edu-row {
    flex-direction: column;
    gap: 8px;
  }

  .edu-right {
    text-align: left;
  }

  .project-logo {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
}

@media (max-width: 400px) {
  .hero h1 {
    font-size: 18px;
  }

  .section-title {
    font-size: 14px;
  }
}