/* =========================================================
   TOKENS
========================================================= */
:root{
  --bg-0:#080C14;
  --bg-1:#0C1320;
  --bg-2:#0A101C;
  --bg-3:#0D1422;
  --surface:#111A2C;
  --surface-2:#141E33;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.14);

  --text:#E8EDF5;
  --text-dim:#8A96AC;
  --text-faint:#5C6A83;

  --accent-a:#33D8C6;   /* signal teal  */
  --accent-b:#7C6EF6;   /* violet       */
  --accent-warm:#FFB454;/* amber, used sparingly */

  --grad: linear-gradient(90deg, var(--accent-a), var(--accent-b));

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius:14px;
  --nav-h:76px;
}

*{margin:0; padding:0; box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
}

a{color:inherit; text-decoration:none;}
ul{list-style:none;}
img{max-width:100%; display:block;}

::selection{background:var(--accent-a); color:#04140f;}

/* focus visibility */
a:focus-visible, .btn:focus-visible, label:focus-visible{
  outline:2px solid var(--accent-a);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important; transition:none !important;}
}

/* =========================================================
   SHARED SECTION LAYOUT
========================================================= */
.section{
  position:relative;
  min-height:100vh;
  padding:calc(var(--nav-h) + 48px) 8vw 96px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.section-inner{
  position:relative;
  z-index:2;
  width:100%;
  max-width:1180px;
  margin:0 auto;
}

.about   { background:var(--bg-1); align-items:flex-start; }
.skills  { background:var(--bg-2); align-items:flex-start; }
.portfolio{ background:var(--bg-3); align-items:flex-start; }
.contact { background:var(--bg-1); align-items:flex-start; }

/* faint dot/grid backdrop, reused per-section */
.bg-grid{
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%, #000 40%, transparent 100%);
  z-index:1;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.85rem;
  color:var(--accent-a);
  letter-spacing:0.02em;
  margin-bottom:14px;
}

.section-title{
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(1.9rem, 3.4vw, 2.6rem);
  margin-bottom:40px;
}

.sub-title{
  font-family:var(--font-display);
  font-size:1.2rem;
  margin:28px 0 16px;
  color:var(--text);
}

.tag{
  font-family:var(--font-mono);
  font-size:0.72rem;
  color:var(--text-faint);
  margin-right:8px;
}

.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* =========================================================
   NAVBAR
========================================================= */
.nav-toggle{ display:none; }

.navbar{
  position:fixed;
  top:0; left:0; right:0;
  height:var(--nav-h);
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 8vw;
  background:rgba(8,12,20,0.7);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}

.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.4rem;
  letter-spacing:0.02em;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.logo em{ font-style:normal; color:var(--accent-warm); -webkit-text-fill-color:var(--accent-warm); }

.nav-links{
  display:flex;
  gap:36px;
}
.nav-links a{
  font-size:0.95rem;
  color:var(--text-dim);
  display:flex;
  align-items:center;
  transition:color 0.2s ease;
  position:relative;
}
.nav-links a:hover{ color:var(--text); }
.nav-links a::after{
  content:"";
  position:absolute;
  left:20px; right:0; bottom:-6px;
  height:2px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 0.25s ease;
}
.nav-links a:hover::after{ transform:scaleX(1); }

.nav-links a.active{ color:var(--text); }
.nav-links a.active::after{ transform:scaleX(1); }
.nav-links a.active .tag{ color:var(--accent-a); }

.hamburger{
  display:none;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
  z-index:110;
}
.hamburger span{
  width:26px; height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform 0.25s ease, opacity 0.25s ease;
}

/* =========================================================
   HERO / HOME
========================================================= */
.hero{
  background:
    radial-gradient(circle at 82% 12%, rgba(124,110,246,0.20), transparent 55%),
    radial-gradient(circle at 8% 90%, rgba(51,216,198,0.14), transparent 50%),
    var(--bg-0);
}

.hero-inner{
  position:relative;
  z-index:2;
  max-width:1180px;
  margin:0 auto;
  width:100%;
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:48px;
  align-items:center;
}

.hero-text .eyebrow{ font-size:0.95rem; }

.hero-text h1{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(2.6rem, 6vw, 4.2rem);
  line-height:1.05;
}
.hero-text h1 .dot{ color:var(--accent-a); }

.role{
  font-family:var(--font-display);
  font-weight:500;
  font-size:clamp(1.1rem, 2.2vw, 1.5rem);
  color:var(--text-dim);
  margin:10px 0 22px;
}

.lead{
  color:var(--text-dim);
  max-width:46ch;
  margin-bottom:34px;
}

.cta-row{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:36px;
}

.btn{
  padding:13px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:0.95rem;
  transition:transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  display:inline-block;
}
.btn-primary{
  background:var(--grad);
  color:#04140f;
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 10px 30px -8px rgba(51,216,198,0.45); }

.btn-ghost{
  border:1px solid var(--border-strong);
  color:var(--text);
}
.btn-ghost:hover{ border-color:var(--accent-a); color:var(--accent-a); transform:translateY(-2px); }

.socials{ display:flex; gap:14px; }
.socials a{
  width:40px; height:40px;
  border:1px solid var(--border);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono);
  font-size:0.75rem;
  color:var(--text-dim);
  transition:all 0.2s ease;
}
.socials a:hover{ border-color:var(--accent-a); color:var(--accent-a); transform:translateY(-3px); }

/* photo / terminal frame */
.hero-photo{ position:relative; justify-self:center; }

.terminal-frame{
  width:min(340px, 80vw);
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--surface);
  box-shadow:0 30px 60px -20px rgba(0,0,0,0.6);
}

.terminal-bar{
  display:flex;
  align-items:center;
  gap:7px;
  padding:12px 14px;
  background:var(--surface-2);
  border-bottom:1px solid var(--border);
}
.terminal-bar span{
  width:10px; height:10px; border-radius:50%;
  background:var(--text-faint);
}
.terminal-bar span:nth-child(1){ background:#FF5F57; }
.terminal-bar span:nth-child(2){ background:#FEBC2E; }
.terminal-bar span:nth-child(3){ background:#28C840; }
.terminal-bar p{
  font-family:var(--font-mono);
  font-size:0.72rem;
  color:var(--text-faint);
  margin-left:8px;
}

.photo-box{
  position:relative;
  aspect-ratio:1/1.05;
  background:
    radial-gradient(circle at 30% 20%, rgba(124,110,246,0.25), transparent 60%),
    var(--bg-1);
  display:flex; align-items:center; justify-content:center;
}
.photo-box img{ width:100%; height:100%; object-fit:cover; }
.photo-fallback{
  display:none;
  text-align:center;
  padding:20px;
  color:var(--text-faint);
  font-family:var(--font-mono);
  font-size:0.78rem;
  line-height:1.7;
}
.photo-box.no-photo .photo-fallback{ display:block; }

.badge-float{
  position:absolute;
  bottom:-18px; right:14px;
  background:var(--bg-0);
  border:1px solid var(--border-strong);
  padding:10px 18px;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--accent-a);
  box-shadow:0 12px 30px -10px rgba(0,0,0,0.6);
}

.scroll-cue{
  position:absolute;
  bottom:28px; left:50%; transform:translateX(-50%);
  z-index:2;
  display:flex; flex-direction:column; align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:0.7rem;
  color:var(--text-faint);
}
.scroll-cue span{
  width:1px; height:34px;
  background:linear-gradient(var(--accent-a), transparent);
  animation:scrolldrop 1.8s ease-in-out infinite;
}
@keyframes scrolldrop{
  0%{ opacity:0; transform:translateY(-6px); }
  50%{ opacity:1; }
  100%{ opacity:0; transform:translateY(10px); }
}

/* =========================================================
   ABOUT
========================================================= */
.about-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:56px;
  align-items:start;
}
.about-copy p{ color:var(--text-dim); margin-bottom:16px; max-width:62ch; }
.about-copy b{ color:var(--text); }

.plan-list li{
  color:var(--text-dim);
  padding:12px 0;
  border-bottom:1px solid var(--border);
  display:flex;
  gap:10px;
}
.plan-list li:first-child{ border-top:1px solid var(--border); }

.id-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
}
.id-card::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--grad);
}
.id-card-title{
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--accent-a);
  margin-bottom:18px;
}
.id-card li{
  display:flex; justify-content:space-between;
  padding:10px 0;
  border-bottom:1px dashed var(--border);
  font-size:0.9rem;
}
.id-card li:last-child{ border-bottom:none; }
.id-card li span{ color:var(--text-faint); }
.id-card li b{ color:var(--text); font-weight:500; text-align:right; }

/* =========================================================
   SKILLS
========================================================= */
.skills-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
.skill-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 24px;
  transition:transform 0.25s ease, border-color 0.25s ease;
}
.skill-card:hover{
  transform:translateY(-6px);
  border-color:var(--accent-a);
}
.skill-icon{
  display:inline-flex;
  width:44px; height:44px;
  align-items:center; justify-content:center;
  border-radius:10px;
  background:rgba(51,216,198,0.10);
  color:var(--accent-a);
  font-family:var(--font-mono);
  margin-bottom:18px;
}
.skill-card h3{
  font-family:var(--font-display);
  font-size:1.05rem;
  margin-bottom:8px;
}
.skill-card p{ color:var(--text-dim); font-size:0.92rem; }

/* =========================================================
   PORTFOLIO
========================================================= */
.project-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
}
.project-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform 0.25s ease, box-shadow 0.25s ease;
}
.project-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 40px -18px rgba(0,0,0,0.55);
}
.project-thumb{
  height:150px;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display);
  font-size:2.4rem;
  font-weight:700;
  color:rgba(255,255,255,0.14);
  background:
    linear-gradient(135deg, rgba(51,216,198,0.16), rgba(124,110,246,0.16));
  border-bottom:1px solid var(--border);
}
.project-body{ padding:22px; }
.project-body h3{
  font-family:var(--font-display);
  font-size:1.08rem;
  margin-bottom:8px;
}
.project-body p{
  color:var(--text-dim);
  font-size:0.9rem;
  margin-bottom:16px;
}
.chip-row{ display:flex; gap:8px; margin-bottom:16px; flex-wrap:wrap; }
.chip-row span{
  font-family:var(--font-mono);
  font-size:0.7rem;
  padding:5px 10px;
  border-radius:999px;
  border:1px solid var(--border-strong);
  color:var(--text-dim);
}
.link-arrow{
  font-size:0.88rem;
  font-weight:600;
  color:var(--accent-a);
}
.link-arrow:hover{ color:var(--accent-b); }

/* =========================================================
   CONTACT
========================================================= */
.contact-lead{ color:var(--text-dim); max-width:56ch; margin-bottom:44px; }

.contact-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:20px;
  margin-bottom:80px;
}
.contact-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px 20px;
  text-align:center;
  transition:transform 0.25s ease, border-color 0.25s ease;
}
.contact-card:hover{ transform:translateY(-6px); border-color:var(--accent-b); }
.contact-card .skill-icon{ margin:0 auto 16px; background:rgba(124,110,246,0.14); color:var(--accent-b); }
.contact-card h3{ font-family:var(--font-display); font-size:1rem; margin-bottom:6px; }
.contact-card p{ color:var(--text-dim); font-size:0.85rem; word-break:break-word; }

/* -----------------------------------------------------
   CONTACT FORM
----------------------------------------------------- */
.contact-form-wrap{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:clamp(28px, 4vw, 44px);
  margin-bottom:64px;
  overflow:hidden;
}
.contact-form-wrap::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--grad);
}

.contact-form-wrap .eyebrow{ margin-bottom:10px; }

.form-title{
  font-family:var(--font-display);
  font-weight:600;
  font-size:1.3rem;
  margin-bottom:28px;
}

.contact-form{
  display:flex;
  flex-direction:column;
  gap:22px;
  max-width:680px;
}

.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
}

.form-group{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.form-group label{
  font-family:var(--font-mono);
  font-size:0.75rem;
  color:var(--text-faint);
  letter-spacing:0.02em;
}

.form-group input,
.form-group textarea{
  font-family:var(--font-body);
  font-size:0.95rem;
  color:var(--text);
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:10px;
  padding:13px 16px;
  transition:border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder{ color:var(--text-faint); }

.form-group textarea{ resize:vertical; min-height:140px; }

.form-group input:hover,
.form-group textarea:hover{ border-color:var(--border-strong); }

.form-group input:focus,
.form-group textarea:focus{
  outline:none;
  border-color:var(--accent-a);
  box-shadow:0 0 0 3px rgba(51,216,198,0.14);
}

.btn-send{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:0.95rem;
  padding:13px 28px;
  border:none;
  border-radius:999px;
  background:var(--grad);
  color:#04140f;
  cursor:pointer;
  transition:transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-send:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 30px -8px rgba(51,216,198,0.45);
}

.btn-send:active{ transform:translateY(0); }

.btn-send:disabled{
  opacity:0.55;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

.btn-arrow{ font-size:1.1rem; line-height:1; }

.form-status{
  font-family:var(--font-mono);
  font-size:0.82rem;
}
.form-status.success{ color:var(--accent-a); }
.form-status.error{ color:#FF6B6B; }

@media (max-width:600px){
  .form-row{ grid-template-columns:1fr; }
}

.footer{
  text-align:center;
  padding-top:28px;
  border-top:1px solid var(--border);
  color:var(--text-faint);
  font-size:0.85rem;
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width:980px){
  .about-grid{ grid-template-columns:1fr; }
  .skills-grid{ grid-template-columns:repeat(2, 1fr); }
  .project-grid{ grid-template-columns:repeat(2, 1fr); }
  .contact-grid{ grid-template-columns:repeat(2, 1fr); }
  .hero-inner{ grid-template-columns:1fr; text-align:left; }
  .hero-photo{ justify-self:start; margin-top:20px; order:-1; }
}

@media (max-width:760px){
  :root{ --nav-h:66px; }
  .section{ padding:calc(var(--nav-h) + 32px) 6vw 72px; }

  .hamburger{ display:flex; }

  .nav-links{
    position:fixed;
    top:var(--nav-h); left:0; right:0;
    flex-direction:column;
    gap:0;
    background:rgba(8,12,20,0.98);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
    max-height:0;
    overflow:hidden;
    transition:max-height 0.3s ease;
  }
  .nav-links a{
    padding:18px 8vw;
    border-bottom:1px solid var(--border);
    width:100%;
  }
  .nav-links a::after{ display:none; }

  .nav-toggle:checked ~ .navbar .nav-links{ max-height:400px; }
  .nav-toggle:checked ~ .navbar .hamburger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .navbar .hamburger span:nth-child(2){ opacity:0; }
  .nav-toggle:checked ~ .navbar .hamburger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

  .skills-grid{ grid-template-columns:1fr; }
  .project-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:480px){
  .contact-grid{ grid-template-columns:1fr; }
  .terminal-frame{ width:100%; }
}