:root {
  --bg-color: #050505;
  --card-bg: rgba(26, 26, 26, 0.6);
  --card-hover: rgba(35, 35, 35, 0.8);
  --text: #ffffff;
  --text-muted: #a1a1aa;
  --accent: #ff7520;
  --accent-glow: rgba(255, 117, 32, 0.15);
  --border: rgba(255, 255, 255, 0.1);
}

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

body { 
  background-color: var(--bg-color); 
  color: var(--text); 
  line-height: 1.6; 
  position: relative;
}

/* Premium Textured Background */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
  z-index: -2;
  pointer-events: none;
}

/* Subtle Hero Glow */
body::after {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(40px);
}

a { text-decoration: none; color: inherit; transition: 0.2s; }

/* Placeholder text visibility */
::placeholder { color: rgba(161,161,170,0.55); font-family: inherit; }

/* Navbar */
.navbar { 
  position: fixed; top: 0; left: 0; right: 0; 
  background: rgba(5, 5, 5, 0.7); 
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); 
  z-index: 100; padding: 16px 0; 
}
.nav-container { max-width: 800px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; }
.nav-brand { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.nav-links a:hover { color: var(--text); }
.lang-toggle { padding: 4px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.8rem !important; background: rgba(255,255,255,0.05); }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  -webkit-tap-highlight-color: transparent;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Main */
.container { max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* Hero */
.hero { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; margin-bottom: 0; padding-top: 60px; }
.avatar { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; margin-bottom: 24px; border: 2px solid rgba(255,255,255,0.1); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.hero-title { 
  font-size: 3.5rem; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.03em;
  background: linear-gradient(to right, #fff, #a1a1aa);
  -webkit-background-clip: text; color: transparent;
}
.hero-role { font-size: 1.25rem; color: var(--accent); margin-bottom: 24px; font-weight: 500; }
.hero-bio { font-size: 1.15rem; color: var(--text-muted); max-width: 600px; margin-bottom: 32px; }

/* About Section */
.about-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center; }
.about-text p { font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; }
.skills-container { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.skill-tag { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: var(--accent-dim); border: 1px solid rgba(255,117,32,0.2); color: var(--accent); border-radius: 99px; font-size: 0.9rem; font-weight: 600; transition: 0.2s; }
.skill-tag:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 15px var(--accent-glow); }

.terminal-card { padding: 0 !important; overflow: hidden; background: #0c0c0c !important; border: 1px solid rgba(255,255,255,0.1) !important; }
.terminal-header { background: #1a1a1a; padding: 12px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.term-title { margin-left: auto; margin-right: auto; color: #888; font-size: 0.85rem; font-family: monospace; }
.terminal-body { padding: 24px; font-family: monospace; font-size: 0.95rem; line-height: 1.6; }
.terminal-body p { color: inherit; font-size: inherit; }
.prompt { color: #4ade80; font-weight: 600; margin-right: 8px; }
.output { color: #a1a1aa; margin-bottom: 12px; }
.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Hero Actions */
.hero-actions { margin-bottom: 24px; }
.btn-contact { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #fff; padding: 12px 24px; border-radius: 99px; font-weight: 600; font-size: 1rem; transition: 0.2s; box-shadow: 0 4px 15px var(--accent-glow); }
.btn-contact:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--accent-glow); filter: brightness(1.1); color: #fff; }

.social-links { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.social-links a { 
  font-size: 0.92rem; font-weight: 500; padding: 10px 18px; 
  background: var(--card-bg); border: 1px solid var(--border); 
  border-radius: 99px; backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.05);
  display: flex; align-items: center; gap: 7px;
}
.social-links a i { font-size: 1rem; }
.social-links a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); box-shadow: 0 5px 15px var(--accent-glow); }

/* Sections */
.section { min-height: auto; padding: 100px 0 60px; }
.section-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 32px; letter-spacing: -0.02em; }

/* Cards (Glassmorphism & Depth) */
.card { 
  background: var(--card-bg); 
  border: 1px solid var(--border); 
  border-radius: 20px; 
  overflow: hidden; 
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1), inset 0 1px 1px rgba(255,255,255,0.05);
}
.card:hover { 
  border-color: rgba(255,117,32,0.3); 
  background: var(--card-hover); 
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.4), inset 0 1px 1px rgba(255,255,255,0.1);
}

/* Projects */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.full-width { grid-column: 1 / -1; display: flex; align-items: center; }
.full-width .proj-img { width: 50%; height: 160px; border-bottom: none; border-right: 1px solid var(--border); }
.proj-card { display: flex; flex-direction: column; cursor: pointer; }
.proj-img { width: 100%; height: 160px; object-fit: contain; padding: 24px; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.3); transition: transform 0.5s ease; }
.wa-img { object-fit: contain; padding: 24px; background: #fff; }
.proj-card:hover .proj-img { transform: scale(1.03); }
.card-content { padding: 28px; flex: 1; z-index: 1; background: var(--card-bg); }
.card-content h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.card-content p { font-size: 0.95rem; color: var(--text-muted); }

/* Experience */
.timeline { display: flex; flex-direction: column; gap: 24px; }
.exp-card { padding: 32px; }
.exp-header { display: flex; gap: 20px; align-items: center; margin-bottom: 20px; }
.exp-logo { width: 56px; height: 56px; border-radius: 12px; object-fit: contain; background: #fff; padding: 6px; box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
.exp-title-box h3 { font-size: 1.25rem; font-weight: 600; }
.exp-date { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.exp-role { font-size: 1.1rem; color: var(--accent); margin-bottom: 12px; font-weight: 500; }
.exp-desc { font-size: 1rem; color: var(--text-muted); }

/* Contact */
.contact-desc { color: var(--text-muted); margin-bottom: 16px; font-size: 1.05rem; }
.contact-form { padding: 40px; display: flex; flex-direction: column; gap: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.input-group { display: flex; flex-direction: column; gap: 8px; }
.input-group label { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.input-group input, .input-group textarea { 
  padding: 14px 16px; background: rgba(0,0,0,0.4); 
  border: 1px solid var(--border); border-radius: 12px; 
  color: var(--text); font-size: 1rem; transition: 0.2s; 
}
.input-group input:focus, .input-group textarea:focus { 
  outline: none; border-color: var(--accent); 
  background: rgba(255,117,32,0.05); box-shadow: 0 0 0 3px var(--accent-glow); 
}
.input-group textarea { min-height: 140px; resize: vertical; }

.btn-submit { 
  padding: 16px; background: var(--text); color: var(--bg-color); 
  border: none; border-radius: 12px; font-weight: 600; font-size: 1.05rem; 
  cursor: pointer; transition: 0.2s; margin-top: 8px;
}
.btn-submit:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 20px var(--accent-glow); }

.cf-status { margin-top: 8px; padding: 12px; border-radius: 8px; font-size: 0.9rem; display: none; }
.cf-status.ok { display: block; background: rgba(34, 197, 94, 0.1); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.2); }
.cf-status.err { display: block; background: rgba(239, 68, 68, 0.1); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.2); }

.footer { padding: 40px 0; text-align: center; border-top: 1px solid var(--border); margin-top: 40px; background: rgba(0,0,0,0.2); }
.footer-content p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 8px; }
.footer-subtitle { font-size: 0.85rem !important; opacity: 0.8; margin-bottom: 0 !important; }

@media (max-width: 640px) {
  /* Nav — hamburger drawer */
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 57px; left: 0; right: 0;
    background: rgba(5,5,5,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 20px;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; padding: 4px 0; }

  /* Hero */
  .hero { padding-top: 80px; padding-bottom: 40px; }
  .avatar { width: 88px; height: 88px; margin-bottom: 18px; }
  .hero-title { font-size: 2.6rem; }
  .hero-role { font-size: 1.05rem; margin-bottom: 16px; }
  .hero-bio { font-size: 0.97rem; margin-bottom: 24px; }
  .social-links { flex-wrap: wrap; justify-content: center; gap: 10px; }
  .social-links a { font-size: 0.88rem; padding: 9px 16px; }

  /* Sections */
  .section { min-height: auto; padding: 80px 0 56px; }
  .section-title { font-size: 1.45rem; margin-bottom: 20px; }

  /* Projects */
  .grid-2 { grid-template-columns: 1fr; gap: 14px; }
  .full-width { flex-direction: column; }
  .full-width .proj-img { width: 100%; height: 140px; border-right: none; border-bottom: 1px solid var(--border); }
  .proj-img { height: 140px; padding: 16px; }
  .card-content { padding: 18px; }
  .card-content h3 { font-size: 1.05rem; }
  .card-content p { font-size: 0.9rem; }

  /* Experience */
  .exp-card { padding: 18px; }
  .exp-header { gap: 12px; margin-bottom: 14px; }
  .exp-logo { width: 44px; height: 44px; border-radius: 10px; }
  .exp-title-box h3 { font-size: 1.05rem; }
  .exp-role { font-size: 0.97rem; margin-bottom: 8px; }
  .exp-desc { font-size: 0.9rem; }

  /* Contact */
  .contact-form { padding: 18px; gap: 14px; }
  .form-grid { grid-template-columns: 1fr; gap: 14px; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .terminal-card { margin-top: 16px; }
  /* iOS Safari zooms in when input font-size < 16px — force 16px minimum */
  .input-group input, .input-group textarea {
    padding: 12px 14px;
    font-size: 16px;
    font-family: inherit;
  }
  .input-group textarea { min-height: 120px; }
  .btn-submit { font-size: 0.97rem; padding: 14px; }

  /* Container */
  .container { padding: 0 16px; }
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 10px; border: 3px solid var(--bg-color); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}