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

:root {
  --clr-bg: #0a0a0f;
  --clr-bg2: #111118;
  --clr-bg3: #16161f;
  --clr-surface: #1a1a26;
  --clr-border: rgba(255,255,255,0.07);
  --clr-primary: #7c6cf1;
  --clr-primary-light: #a78bfa;
  --clr-accent: #06b6d4;
  --clr-text: #e2e2f0;
  --clr-text-muted: #8888aa;
  --clr-white: #ffffff;
  --font-main: 'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(124,108,241,0.2);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-primary); border-radius: 3px; }

/* ============ UTILITY ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

.section { padding: 6rem 0; }

.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-primary-light);
  background: rgba(124,108,241,0.12);
  border: 1px solid rgba(124,108,241,0.25);
  border-radius: 99px;
  padding: 0.35rem 1rem;
  margin-bottom: 0.75rem;
}
.section-title { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; color: var(--clr-white); }
.highlight { background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: 99px;
  font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: none;
  text-decoration: none;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.btn::after { content: ''; position: absolute; inset: 0; background: rgba(255,255,255,0.05); opacity: 0; transition: var(--transition); }
.btn:hover::after { opacity: 1; }
.btn-primary { background: linear-gradient(135deg, var(--clr-primary), #5b50d6); color: #fff; box-shadow: 0 4px 24px rgba(124,108,241,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,108,241,0.5); }
.btn-outline { background: transparent; color: var(--clr-text); border: 1.5px solid var(--clr-border); }
.btn-outline:hover { border-color: var(--clr-primary); color: var(--clr-primary-light); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(30px); transition: 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ NAVBAR ============ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1rem 0;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.navbar.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--clr-border);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 700;
  color: var(--clr-white); text-decoration: none;
}
.logo-bracket { color: var(--clr-primary-light); }
.nav-links { list-style: none; display: flex; gap: 2rem; }
.nav-link {
  color: var(--clr-text-muted); text-decoration: none;
  font-size: 0.9rem; font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0;
  height: 2px; background: var(--clr-primary); border-radius: 2px;
  transition: width var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--clr-white); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--clr-text); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============ HERO ============ */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse at 60% 50%, rgba(124,108,241,0.12) 0%, transparent 70%),
              radial-gradient(ellipse at 20% 80%, rgba(6,182,212,0.08) 0%, transparent 60%),
              var(--clr-bg);
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shape {
  position: absolute; border-radius: 50%;
  background: linear-gradient(135deg, rgba(124,108,241,0.15), rgba(6,182,212,0.1));
  filter: blur(60px); animation: float 8s ease-in-out infinite;
}
.shape-1 { width: 500px; height: 500px; top: -100px; right: -100px; animation-delay: 0s; }
.shape-2 { width: 300px; height: 300px; bottom: 100px; left: -50px; animation-delay: 3s; }
.shape-3 { width: 200px; height: 200px; top: 50%; left: 40%; animation-delay: 6s; }
@keyframes float { 0%, 100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-20px) scale(1.05); } }

.hero-container {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 6rem 1.5rem 3rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero-greeting {
  font-size: 1.1rem; font-weight: 500; color: var(--clr-primary-light); margin-bottom: 0.5rem;
}
.hero-name {
  font-family: var(--font-display); font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800; color: var(--clr-white); line-height: 1.05;
  background: linear-gradient(135deg, #fff 40%, var(--clr-primary-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 1rem;
}
.hero-role {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem); color: var(--clr-text-muted);
  margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.3rem; flex-wrap: wrap;
}
.typewriter { color: var(--clr-accent); font-weight: 600; min-width: 200px; }
.cursor-blink { color: var(--clr-accent); animation: blink 0.8s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.hero-desc { color: var(--clr-text-muted); font-size: 1rem; max-width: 480px; margin-bottom: 2rem; line-height: 1.8; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }

.hero-socials { display: flex; gap: 0.8rem; }
.social-icon {
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-text-muted); transition: var(--transition);
}
.social-icon svg { width: 18px; height: 18px; }
.social-icon:hover { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); transform: translateY(-3px); }

/* Hero Avatar */
.hero-image-wrap { display: flex; justify-content: center; align-items: center; }
.hero-avatar { position: relative; width: 340px; height: 340px; }
.avatar-ring {
  position: absolute; inset: -12px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--clr-primary), var(--clr-accent), var(--clr-primary));
  animation: spin 8s linear infinite; padding: 3px;
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), black calc(100% - 3px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), black calc(100% - 3px));
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-inner {
  width: 100%; height: 100%; border-radius: 50%; overflow: hidden;
  background: var(--clr-surface); border: 4px solid var(--clr-bg);
}
.avatar-inner svg { width: 100%; height: 100%; }

.floating-badge {
  position: absolute; background: rgba(26,26,38,0.9); backdrop-filter: blur(10px);
  border: 1px solid var(--clr-border); border-radius: 30px;
  padding: 0.4rem 0.9rem; font-size: 0.8rem; font-weight: 600; color: var(--clr-white);
  white-space: nowrap; box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.badge-1 { top: 6%; left: -10%; animation: badgeFloat 3s ease-in-out infinite; }
.badge-2 { bottom: 14%; right: -10%; animation: badgeFloat 3s ease-in-out infinite 1s; }
.badge-3 { top: 50%; right: -14%; transform: translateY(-50%); animation: badgeFloat 3s ease-in-out infinite 2s; }
@keyframes badgeFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.badge-3 { animation: badgeFloat3 3s ease-in-out infinite 2s; }
@keyframes badgeFloat3 { 0%, 100% { transform: translateY(-50%); } 50% { transform: translateY(calc(-50% - 8px)); } }

.scroll-down {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  width: 32px; height: 52px; border: 2px solid rgba(255,255,255,0.15); border-radius: 99px;
  display: flex; justify-content: center; align-items: flex-start; padding-top: 8px;
  text-decoration: none;
}
.scroll-dot {
  width: 5px; height: 10px; border-radius: 99px;
  background: var(--clr-primary-light);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
@keyframes scrollBounce { 0%, 100% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(16px); opacity: 0; } }

/* ============ ABOUT ============ */
.about { background: var(--clr-bg2); }
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: start; }
.about-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 2.5rem;
}
.about-card h3 { font-family: var(--font-display); font-size: 1.5rem; color: var(--clr-white); margin-bottom: 1rem; }
.about-card p { color: var(--clr-text-muted); margin-bottom: 1rem; }
.about-details { display: flex; flex-direction: column; gap: 1rem; margin-top: 1.5rem; }
.detail-item { display: flex; align-items: flex-start; gap: 0.8rem; }
.detail-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.detail-item > div { display: flex; flex-direction: column; }
.detail-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--clr-text-muted); }
.detail-value { font-size: 0.95rem; color: var(--clr-white); font-weight: 500; }

.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 1.8rem 1.2rem;
  text-align: center; display: flex; flex-direction: column; align-items: center;
  gap: 0.4rem; transition: var(--transition);
}
.stat-card:hover { border-color: var(--clr-primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.stat-number { font-family: var(--font-display); font-size: 2.8rem; font-weight: 800; color: var(--clr-primary-light); line-height: 1; }
.stat-label { font-size: 0.8rem; font-weight: 500; color: var(--clr-text-muted); text-align: center; }

/* ============ SKILLS ============ */
.skills { background: var(--clr-bg); }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 3rem; }
.skill-category {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 2rem;
  transition: var(--transition);
}
.skill-category:hover { border-color: rgba(124,108,241,0.3); box-shadow: var(--shadow-glow); }
.category-title { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--clr-white); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.cat-icon { font-size: 1.3rem; }
.skill-list { display: flex; flex-direction: column; gap: 1rem; }
.skill-item {}
.skill-info { display: flex; justify-content: space-between; font-size: 0.88rem; font-weight: 500; color: var(--clr-text); margin-bottom: 0.4rem; }
.skill-bar { height: 6px; background: rgba(255,255,255,0.07); border-radius: 99px; overflow: hidden; }
.skill-fill { height: 100%; border-radius: 99px; width: 0; background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent)); transition: width 1.2s cubic-bezier(.4,0,.2,1); }

.tech-badges { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; }
.tech-badge {
  padding: 0.4rem 1rem; border-radius: 99px; font-size: 0.82rem; font-weight: 600;
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  color: var(--clr-text-muted); transition: var(--transition); cursor: default;
}
.tech-badge:hover { background: rgba(124,108,241,0.12); border-color: var(--clr-primary); color: var(--clr-primary-light); transform: translateY(-2px); }

/* ============ PORTFOLIO ============ */
.portfolio { background: var(--clr-bg2); }
.filter-tabs { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2.5rem; }
.filter-btn {
  padding: 0.5rem 1.3rem; border-radius: 99px; border: 1px solid var(--clr-border);
  background: transparent; color: var(--clr-text-muted); font-weight: 500; font-size: 0.88rem;
  cursor: pointer; transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition); display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-8px); border-color: rgba(124,108,241,0.35); box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.project-card.hidden { display: none; }
.project-img {
  height: 160px; display: flex; align-items: center; justify-content: center;
  position: relative;
}
.proj-emoji { font-size: 3.5rem; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4)); }
.project-body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }
.project-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.8rem; }
.tag { font-size: 0.72rem; font-weight: 600; padding: 0.2rem 0.6rem; border-radius: 99px; background: rgba(124,108,241,0.12); color: var(--clr-primary-light); border: 1px solid rgba(124,108,241,0.2); }
.project-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--clr-white); margin-bottom: 0.6rem; }
.project-desc { font-size: 0.87rem; color: var(--clr-text-muted); line-height: 1.7; flex: 1; margin-bottom: 1.2rem; }
.project-links { display: flex; gap: 0.8rem; margin-top: auto; }
.proj-link {
  font-size: 0.85rem; font-weight: 600; text-decoration: none;
  color: var(--clr-primary-light); transition: var(--transition);
  padding: 0.3rem 0;
}
.proj-link:hover { color: var(--clr-accent); }
.proj-link.ghost { color: var(--clr-text-muted); }
.proj-link.ghost:hover { color: var(--clr-white); }

/* ============ CONTACT ============ */
.contact { background: var(--clr-bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 3rem; align-items: start; }
.contact-info h3 { font-family: var(--font-display); font-size: 1.5rem; color: var(--clr-white); margin-bottom: 1rem; }
.contact-info > p { color: var(--clr-text-muted); margin-bottom: 2rem; line-height: 1.8; }

.contact-cards { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
.contact-card {
  display: flex; align-items: center; gap: 1rem;
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm); padding: 1rem 1.2rem;
  text-decoration: none; transition: var(--transition);
}
.contact-card:hover { border-color: var(--clr-primary); transform: translateX(5px); }
.cc-icon { font-size: 1.4rem; flex-shrink: 0; }
.contact-card > div { display: flex; flex-direction: column; }
.cc-label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--clr-text-muted); }
.cc-value { font-size: 0.92rem; font-weight: 500; color: var(--clr-white); }

.contact-socials { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.csocial-btn {
  padding: 0.5rem 1.2rem; border-radius: 99px; border: 1px solid var(--clr-border);
  background: transparent; color: var(--clr-text-muted); font-size: 0.85rem; font-weight: 600;
  text-decoration: none; transition: var(--transition);
}
.csocial-btn:hover { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); transform: translateY(-2px); }

/* Contact Form */
.contact-form-wrap {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 2.5rem;
}
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--clr-text-muted); margin-bottom: 0.4rem; letter-spacing: 0.04em; }
.form-group input, .form-group textarea {
  width: 100%; background: var(--clr-bg3); border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm); padding: 0.75rem 1rem;
  color: var(--clr-text); font-family: var(--font-main); font-size: 0.92rem;
  transition: border-color var(--transition); resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--clr-text-muted); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(124,108,241,0.1); }
.form-success {
  margin-top: 1rem; padding: 1rem; border-radius: var(--radius-sm);
  background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25);
  color: #10b981; font-weight: 500; text-align: center;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--clr-bg2); border-top: 1px solid var(--clr-border);
  padding: 2rem 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1.5rem;
}
.footer-logo { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--clr-white); }
.footer-text { font-size: 0.85rem; color: var(--clr-text-muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.85rem; color: var(--clr-text-muted); text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: var(--clr-primary-light); }

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 999;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--clr-primary); color: #fff; font-size: 1.1rem; font-weight: 700;
  border: none; cursor: pointer;
  box-shadow: 0 4px 16px rgba(124,108,241,0.4);
  transition: var(--transition);
  opacity: 0; visibility: hidden; transform: translateY(10px);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--clr-primary-light); transform: translateY(-3px); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero-container { gap: 2.5rem; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 4rem 0; }

  /* Nav */
  .hamburger { display: flex; }
  .nav-links {
    position: fixed; top: 0; right: -100%; bottom: 0; z-index: 999;
    width: 75%; max-width: 300px; background: var(--clr-surface);
    backdrop-filter: blur(20px); flex-direction: column;
    padding: 5rem 2rem 2rem; gap: 0.5rem;
    box-shadow: -8px 0 40px rgba(0,0,0,0.4);
    transition: right 0.35s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.open { right: 0; }
  .nav-link { font-size: 1.1rem; padding: 0.6rem 0; }

  /* Hero */
  .hero-container { grid-template-columns: 1fr; text-align: center; padding-top: 7rem; }
  .hero-image-wrap { order: -1; }
  .hero-avatar { width: 240px; height: 240px; margin: 0 auto; }
  .floating-badge { font-size: 0.72rem; padding: 0.3rem 0.7rem; }
  .badge-1 { top: 0; left: 0; }
  .badge-2 { bottom: 0; right: 0; }
  .badge-3 { display: none; }
  .hero-desc { margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-socials { justify-content: center; }

  /* About */
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }

  /* Skills */
  .skills-grid { grid-template-columns: 1fr; }

  /* Portfolio */
  .projects-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-name { font-size: 2.8rem; }
  .btn { padding: 0.7rem 1.5rem; font-size: 0.88rem; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 2.2rem; }
  .contact-form-wrap { padding: 1.5rem; }
  .footer-links { gap: 1rem; }
  .back-to-top { bottom: 1.2rem; right: 1.2rem; }
}