* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

:root {
  --accent: #3b82f6;
  --accent-light: #4da3ff;
  --accent-strong: rgba(59,130,246,0.12);
  --accent-shadow: rgba(59,130,246,0.2);
  --gradient-alt: #2563eb;
  --logo: #4da3ff;
  --subaccent: #60a5fa;
  --body-bg: radial-gradient(circle at 30% 30%, #1a2a6c, #0b0f1a 60%);
  --body-text: #ffffff;
  --text-secondary: #94a3b8;
  --panel-bg: #020617;
  --surface-bg: linear-gradient(145deg, #0b1220, #0a0f1a);
  --section-bg: radial-gradient(circle at top, #0b1a3a, #050d1f);
  --surface-alt: rgba(255,255,255,0.05);
  --surface-alt-strong: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.06);
}

body.pink-mode {
  --accent: #ec4899;
  --accent-light: #f472b6;
  --accent-strong: rgba(236,72,153,0.12);
  --accent-shadow: rgba(236,72,153,0.2);
  --gradient-alt: #d946ef;
  --logo: #f472b6;
  --subaccent: #f472b6;
  --body-bg: radial-gradient(circle at 30% 30%, #ffe4ec, #fff0fb 60%);
  --body-text: #000000;
  --text-secondary: #475569;
  --panel-bg: #ffffff;
  --surface-bg: linear-gradient(145deg, #ffffff, #f8f0f8);
  --section-bg: radial-gradient(circle at top, #ffe4ec, #fff0fb);
  --surface-alt: rgba(0,0,0,0.05);
  --surface-alt-strong: rgba(0,0,0,0.08);
  --border: rgba(0,0,0,0.08);
}

body {
  background: var(--body-bg);
  color: var(--body-text);
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  position: fixed;
  width: 100%;
  backdrop-filter: blur(10px);
  z-index: 1000;
  top: 0;
}

.logo {
  color: var(--logo);
  font-size: 24px;
  cursor: pointer;
}

nav {
  display: flex;
  gap: 30px;
}

nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--body-text);
}

/* Hero */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px 60px 0;
  max-width: 900px;
}

@media (max-width: 1024px) {
  .hero {
    padding: 100px 40px 0;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 100px 20px 0;
    height: auto;
    min-height: 100vh;
  }
}

/* Badge */
.badge {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--accent);
  color: var(--accent);
  margin-bottom: 20px;
  font-size: 12px;
}

/* Title */
.hero h1 {
  font-size: 64px;
  font-weight: 800;
}

/* Description */
.hero p {
  margin-top: 20px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero span {
  color: var(--subaccent);
  font-weight: 600;
}

/* Tags */
.tags {
  display: flex;
  gap: 15px;
  margin-top: 25px;
}

.tag {
  padding: 10px 15px;
  border-radius: 20px;
  background: var(--surface-alt);
  border: 1px solid var(--surface-alt-strong);
  font-size: 14px;
  color: var(--text-secondary);
}

/* Buttons */
.buttons {
  margin-top: 30px;
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--gradient-alt));
  border: none;
  padding: 14px 28px;
  border-radius: 10px;
  color: var(--button-text);
  margin-right: 15px;
  cursor: pointer;
}

.btn-secondary {
  background: var(--surface-alt);
  border: 1px solid var(--surface-alt-strong);
  padding: 14px 28px;
  border-radius: 10px;
  color: var(--button-text);
  cursor: pointer;
}

/* Hover Effects */
.btn-primary:hover {
  transform: scale(1.05);
}

.btn-secondary:hover {
  background: var(--surface-alt-strong);
}

/* ===== CORE COMPETENCIES ===== */

.skills-section {
  padding: 120px 60px;
  text-align: center;
  background: var(--panel-bg);
}

/* Title */
.section-title {
  font-size: 38px;
  font-weight: 700;
}

.section-underline {
  width: 80px;
  height: 4px;
  background: var(--accent);
  margin: 12px auto 60px;
  border-radius: 10px;
}

/* Layout */
.skills-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}

/* Card */
.skills-card {
  background: var(--surface-bg);
  border: 1px solid var(--border);
  padding: 30px;
  border-radius: 20px;
  text-align: left;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

/* Highlight card */
.skills-card.active {
  border: 1px solid var(--accent);
  box-shadow: 0 0 30px var(--accent-shadow);
}

/* Hover */
.skills-card:hover {
  transform: translateY(-10px);
  border: 1px solid var(--accent);
}

/* Icon */
.skills-icon {
  font-size: 22px;
  background: var(--surface-alt);
  padding: 12px;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 15px;
}

.skills-icon.blue {
  background: var(--accent);
}

/* Title */
.skills-card h3 {
  margin-bottom: 15px;
  font-size: 18px;
}

/* Tags */
.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skills-tags span {
  background: var(--surface-alt);
  padding: 6px 12px;
  border-radius: 15px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Section */
.skills-section {
  padding: 120px 60px;
  text-align: center;
  background: var(--panel-bg);
}

/* Title */
.section-title {
  font-size: 36px;
  font-weight: 700;
}

.underline {
  width: 80px;
  height: 4px;
  background: var(--accent);
  margin: 10px auto 50px;
  border-radius: 10px;
}

/* Cards Layout */
.cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

/* Card */
.card {
  background: var(--surface-alt);
  border: 1px solid var(--surface-alt-strong);
  padding: 30px;
  border-radius: 20px;
  width: 260px;
  text-align: left;
  transition: 0.3s;
  backdrop-filter: blur(10px);
}

/* Active Card (like Tools one) */
.card.active {
  border: 1px solid var(--accent);
  box-shadow: 0 0 25px var(--accent-shadow);
}

/* Hover Effect */
.card:hover {
  transform: translateY(-10px);
  border: 1px solid var(--accent);
}

/* Icon */
.icon {
  font-size: 24px;
  background: var(--surface-alt);
  padding: 12px;
  border-radius: 10px;
  display: inline-block;
  margin-bottom: 15px;
}

.icon.blue {
  background: var(--accent);
}

/* Title */
.card h3 {
  margin-bottom: 15px;
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tags span {
  background: var(--surface-alt);
  padding: 6px 12px;
  border-radius: 15px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* SECTION */
.section {
  padding: 80px 20px;
  text-align: center;
  background: var(--section-bg);
  color: var(--body-text);
}

.section h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.underline {
  width: 60px;
  height: 3px;
  background: var(--accent-light);
  margin: 10px auto 60px;
  border-radius: 10px;
}

/* TIMELINE */
.timeline {
  position: relative;
  max-width: 900px;
  margin: auto;
  display: flex;
  justify-content: center;
}

.line {
  position: absolute;
  width: 2px;
  height: 100%;
  background: var(--surface-alt-strong);
  left: 50%;
  transform: translateX(-50%);
}

.dot {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--accent-light);
  border-radius: 50%;
  left: 50%;
  transform: translate(-50%, 0);
  top: 120px;
  box-shadow: 0 0 10px var(--accent-light);
}

/* CARD */
.card {
  margin-left: 55%;
  background: var(--surface-alt);
  border-radius: 20px;
  padding: 25px;
  width: 320px;
  text-align: left;
  box-shadow: 0 0 25px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.date {
  color: var(--accent-light);
  font-size: 13px;
  margin-bottom: 10px;
}

.company {
  color: var(--accent-light);
  font-size: 14px;
  margin-bottom: 15px;
}

.card ul {
  list-style: none;
}

.card ul li {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  position: relative;
  padding-left: 15px;
}

.card ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-light);
}

/* RESPONSIVE */
@media(max-width: 768px) {
  .card {
    margin-left: 0;
    width: 90%;
  }

  .line, .dot {
    left: 20px;
  }
}

/* PROJECTS SECTION */
.projects-section {
  padding: 120px 60px;
  text-align: center;
  background: var(--panel-bg);
}

/* CONTAINER */
.projects-container {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

/* CARD */
.project-card {
  background: var(--surface-bg);
  border: 1px solid var(--surface-alt-strong);
  border-radius: 20px;
  padding: 30px;
  width: 320px;
  text-align: left;
  transition: 0.3s;
  backdrop-filter: blur(10px);
}

/* CENTER CARD HIGHLIGHT */
.project-card.highlight {
  border: 1px solid var(--accent);
  box-shadow: 0 0 25px var(--accent-shadow);
}

/* HOVER */
.project-card:hover {
  transform: translateY(-10px);
  border: 1px solid var(--accent);
}

/* TAG */
.project-tag {
  font-size: 12px;
  color: var(--subaccent);
  margin-bottom: 15px;
  letter-spacing: 1px;
}

/* TITLE */
.project-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
}

/* DESCRIPTION */
.project-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* TECH TAGS */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-tags span {
  font-size: 11px;
  padding: 6px 12px;
  border-radius: 15px;
  background: var(--surface-alt);
  color: var(--text-secondary);
}
/* EDUCATION SECTION */
.education-section {
  padding: 120px 60px;
  background: var(--section-bg);
  text-align: center;
}

/* CONTAINER */
.education-container {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

/* CARD */
.edu-card {
  width: 420px;
  padding: 30px;
  border-radius: 20px;
  text-align: left;
  background: var(--surface-bg);
  border: 1px solid var(--surface-alt-strong);
  transition: 0.3s;
}

/* HIGHLIGHT CARD */
.edu-card.highlight {
  border: 1px solid var(--accent);
  box-shadow: 0 0 25px var(--accent-shadow);
}

/* HOVER */
.edu-card:hover {
  transform: translateY(-8px);
  border: 1px solid var(--accent);
}

/* TOP ROW */
.edu-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

/* ICON */
.edu-icon {
  font-size: 22px;
  background: var(--surface-alt);
  padding: 12px;
  border-radius: 12px;
}

.edu-icon.blue {
  background: var(--accent);
}

/* BADGE */
.edu-badge {
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(34,197,94,0.15);
  color: #22c55e;
  border: 1px solid rgba(34,197,94,0.4);
}

/* TITLE */
.edu-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

/* DESCRIPTION */
.edu-card p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 20px;
}

/* FOOTER */
.edu-footer span {
  background: var(--surface-alt);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.contact-section {
  background: var(--panel-bg);
  color: var(--body-text);
  padding: 80px 20px;
  text-align: center;
  font-family: 'Poppins', sans-serif;
}

.contact-section .contact-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.3;
}

.contact-section .contact-title span {
  color: var(--accent);
}

.contact-section .contact-subtitle {
  max-width: 700px;
  margin: 20px auto 60px;
  color: var(--text-secondary);
  font-size: 16px;
}

.contact-section .contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: auto;
}

.contact-section .contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  background: var(--surface-bg);
  border-radius: 20px;
  padding: 30px 20px;
  transition: 0.3s ease;
  border: 1px solid var(--surface-alt-strong);
  text-decoration: none;
  color: inherit;
}

.contact-section .contact-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.contact-section .contact-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: var(--accent-strong);
}

.contact-section .contact-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--accent);
}

.contact-section .contact-label {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.contact-section .contact-card h3 {
  font-size: 16px;
  margin-bottom: 15px;
}

.contact-section .contact-card button {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 14px;
}

.contact-section .contact-card button:hover {
  text-decoration: underline;
}

/* RESPONSIVE LAYOUT */
@media (max-width: 1024px) {
  .navbar {
    padding: 18px 30px;
  }

  nav {
    gap: 20px;
  }

  .hero {
    padding: 100px 30px 0;
  }

  .hero h1 {
    font-size: 52px;
  }

  .skills-section,
  .projects-section,
  .education-section,
  .contact-section,
  .section {
    padding-left: 40px;
    padding-right: 40px;
  }

  .section-title {
    font-size: 32px;
  }

  .contact-section .contact-title {
    font-size: 42px;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 15px 20px;
  }

  nav {
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
  }

  nav a {
    font-size: 13px;
  }

  .hero {
    padding: 100px 20px 20px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .badge {
    font-size: 11px;
    padding: 6px 14px;
  }

  .tags {
    gap: 10px;
  }

  .tag {
    font-size: 12px;
    padding: 8px 12px;
  }

  .buttons {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    padding: 12px 18px;
    margin-right: 0;
  }

  .skills-section,
  .projects-section,
  .education-section,
  .contact-section,
  .section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .section-title,
  .contact-section .contact-title {
    font-size: 30px;
  }

  .skills-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cards {
    gap: 20px;
  }

  .project-card,
  .edu-card,
  .contact-section .contact-card {
    width: 100%;
    max-width: 100%;
  }

  .projects-container,
  .education-container {
    gap: 20px;
  }

  .contact-section .contact-cards {
    gap: 20px;
  }

  .contact-section .contact-subtitle {
    font-size: 14px;
    margin-bottom: 40px;
  }

  .timeline {
    flex-direction: column;
    align-items: flex-start;
  }

  .line,
  .dot {
    left: 20px;
  }
}

@media (max-width: 480px) {
  .navbar {
    padding: 12px 16px;
  }

  nav {
    gap: 10px;
  }

  nav a {
    font-size: 12px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p,
  .contact-section .contact-subtitle,
  .project-card p,
  .edu-card p {
    font-size: 14px;
  }

  .badge {
    margin-bottom: 16px;
  }

  .skills-section,
  .projects-section,
  .education-section,
  .contact-section,
  .section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section-title,
  .contact-section .contact-title {
    font-size: 26px;
  }

  .tag {
    padding: 8px 10px;
  }

  .cards {
    flex-direction: column;
  }

  .project-card,
  .edu-card,
  .contact-section .contact-card,
  .section .card {
    width: 100%;
  }

  .contact-section .contact-cards {
    grid-template-columns: 1fr;
  }

  .contact-section .contact-card {
    padding: 24px 16px;
  }
}