/* styles.css
   Modern, clean responsive styling using CSS Grid & Flexbox.
   Color scheme: navy (#06283D), light-gray (#F4F7F9), white, soft orange (#FF8A4C)
   Commented for clarity.
*/

:root{
  --navy: #06283D;
  --muted: #9AA5B1;
  --light: #F4F7F9;
  --accent: #FF8A4C;
  --white: #ffffff;
  --glass: rgba(255,255,255,0.06);
  --max-width: 1100px;
  --radius: 12px;
  --shadow-sm: 0 6px 18px rgba(2,6,23,0.08);
  --shadow-lg: 0 12px 40px rgba(2,6,23,0.12);
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light ;
}

/* Reset & base */
* { box-sizing: border-box; }
html,body { height: 100%; }
body{
  margin:0;
  background: linear-gradient(180deg, #f6f8fa 0%, #ffffff 100%);
  color: #0b1b2b;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  font-size:16px;
}

/* Container */
.container{
  width: min(94%, var(--max-width));
  margin: 0 auto;
}

/* SITE HEADER / NAV */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(255,255,255,0.75), rgba(255,255,255,0.55));
  border-bottom: 1px solid rgba(10,20,30,0.04);
}
.nav{
  display:flex;
  align-items:center;
  gap:1rem;
  padding: 0.8rem 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:.6rem;
  text-decoration:none;
  color:var(--navy);
}
.logo{
  width:44px; height:44px;
  background: linear-gradient(135deg,var(--navy), #0E5A7A);
  color: #fff;
  border-radius:10px;
  display:grid; place-items:center;
  font-weight:700;
  box-shadow: var(--shadow-sm);
}
.brand-text{ font-weight:600; font-size:1rem; }

.nav-links{
  margin-left:auto;
  display:flex;
  gap:1rem;
  list-style:none;
  align-items:center;
}
.nav-links a{
  text-decoration:none;
  color:var(--navy);
  padding:.6rem .8rem;
  border-radius:8px;
  transition: all 160ms ease;
  font-weight:600;
}
.nav-links a:hover,
.nav-links a:focus {
  background: rgba(6,40,61,0.06);
  transform: translateY(-2px);
}

/* Mobile nav toggle */
.nav-toggle{
  display:none;
  margin-left:auto;
  background:transparent; border:0;
  cursor:pointer;
}
.nav-toggle .hamburger{
  display:block;
  width:28px; height:2px;
  background:var(--navy);
  position:relative;
}
.nav-toggle .hamburger::before,
.nav-toggle .hamburger::after{
  content:""; position:absolute; left:0; width:28px; height:2px; background:var(--navy);
}
.nav-toggle .hamburger::before{ top:-8px; }
.nav-toggle .hamburger::after{ top:8px; }

/* HERO */
.hero{
  padding: 56px 0;
  background:
    radial-gradient(600px 300px at 10% 20%, rgba(6,40,61,0.06), transparent 10%),
    linear-gradient(180deg, rgba(6,40,61,0.03), transparent 40%);
}
.hero-grid{
  display:grid;
  grid-template-columns: 1fr 420px;
  gap: 2.5rem;
  align-items:center;
}
.name{
  font-size: clamp(2rem, 4.6vw, 3rem);
  margin:0 0 .4rem 0;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.tagline{
  margin:0 0 1rem 0;
  color:var(--muted);
  max-width: 54ch;
}
.hero-cta { display:flex; gap:.75rem; margin: 1rem 0; }
.btn{
  display:inline-flex; align-items:center; gap:.6rem;
  padding:.6rem 1rem; border-radius:10px; border:0; cursor:pointer;
  font-weight:700; text-decoration:none;
  box-shadow: var(--shadow-sm);
}
.btn.primary{
  background: linear-gradient(90deg, var(--navy), #0E5A7A);
  color:white;
}
.btn.ghost{
  background:transparent; color:var(--navy);
  border:1px solid rgba(6,40,61,0.07);
}

/* Hero meta */
.hero-meta{ list-style:none; padding:0; margin:1rem 0 0 0; color:var(--muted); font-size:.95rem; display:grid; gap:.25rem; }

/* Portrait card */
.portrait-card{
  background: linear-gradient(180deg, rgba(255,255,255,0.9), #ffffff);
  border-radius:18px;
  padding:12px;
  width:100%;
  max-width:420px;
  box-shadow: var(--shadow-lg);
  transform: translateZ(0);
  transition: transform .28s ease;
}
.portrait-card:hover{ transform: translateY(-6px) rotate(-0.6deg); }
.portrait-bg{ border-radius:12px; overflow:hidden; }
.portrait-bg img{ width:100%; height:auto; display:block; object-fit:cover; }
.portrait-caption{ margin-top:.6rem; text-align:center; color:var(--muted); font-weight:600; }

/* ABOUT */
.about{
  padding:48px 0;
}
.section-title{ font-size:1.25rem; margin:0 0 0.6rem 0; color:var(--navy); }
.section-sub{ color:var(--muted); margin-bottom:1rem; }
.about-grid{
  display:grid;
  grid-template-columns: 1fr 260px;
  gap:1.25rem;
  align-items:start;
  margin-top:1rem;
}
.about-text p{ margin:0 0 1rem 0; color:#23303b; }
.about-list{ list-style:none; padding:0; margin:0; display:grid; gap:.4rem; color:var(--muted); }
.card.small{
  background:var(--white);
  border-radius:12px;
  padding:1rem;
  box-shadow: var(--shadow-sm);
  margin-bottom:0.85rem;
}
.card-title{ color:var(--muted); font-size:.88rem; }
.card-value{ font-weight:700; font-size:1.1rem; color:var(--navy); }

/* PROJECTS */
.projects{ padding:48px 0; background: linear-gradient(180deg, rgba(255,244,236,0.02), transparent 40%); }
.projects-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
  margin-top:1rem;
}
.project{
  background:var(--white);
  border-radius:12px;
  overflow:hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease;
}
.project:hover{ transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.thumb{ position:relative; margin:0; height:0; padding-bottom:56%; overflow:hidden; }
.thumb img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; display:block; }
.overlay{
  position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding:1rem; color:#fff;
  background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(0,0,0,0.45) 100%);
  opacity:0; transform: translateY(6px); transition: all .24s ease;
}
.project:hover .overlay{ opacity:1; transform: translateY(0); }
.project-body{ padding:1rem 1rem 1.2rem 1rem; }
.project-tags{ margin-top:.6rem; color:var(--muted); font-size:.9rem; }

/* SKILLS */
.skills{ padding:48px 0; }
.skills-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
  margin-top:1rem;
}
.skill-card{
  display:flex; gap:1rem; align-items:center;
  background:var(--white); border-radius:12px; padding:1rem;
  box-shadow: var(--shadow-sm);
}
.skill-icon{ width:64px; height:64px; display:grid; place-items:center; border-radius:10px; background: linear-gradient(180deg, #fff, #fbfbfb); box-shadow: inset 0 -6px 16px rgba(0,0,0,0.03); }
.skill-name{ font-weight:700; color:var(--navy); }
.skill-bar{ background: #e9eef2; border-radius:999px; height:8px; width:100%; margin-top:.45rem; overflow:hidden; }
.skill-bar span{ display:block; height:8px; background:linear-gradient(90deg,var(--accent), #ff6a3d); border-radius:999px; box-shadow: 0 4px 16px rgba(255,138,76,0.14); }

/* CONTACT */
.contact{ padding:48px 0; background:linear-gradient(180deg, rgba(6,40,61,0.02), transparent 60%); }
.contact-grid{ display:grid; grid-template-columns: 1fr 340px; gap:1rem; margin-top:1rem; align-items:start; }
.contact-form{ background:var(--white); padding:1rem; border-radius:12px; box-shadow: var(--shadow-sm); }
.form-row{ display:flex; flex-direction:column; gap:.4rem; margin-bottom:.8rem; }
.form-row label{ font-weight:600; color:var(--navy); }
.form-row input, .form-row textarea{
  padding:.7rem .8rem; border-radius:8px; border:1px solid #e6e9ee; font-size:1rem;
  outline:none;
}
.form-row input:focus, .form-row textarea:focus{ box-shadow: 0 6px 20px rgba(6,40,61,0.06); border-color: rgba(6,40,61,0.08); }
.field-error{ color:#c34121; font-size:.9rem; height:1.1rem; }

.form-actions{ display:flex; gap:.6rem; margin-top:.6rem; }
.form-status{ margin-top:1rem; color:var(--muted); }

/* CONTACT ASIDE */
.contact-aside .contact-card{ background:var(--white); padding:1rem; border-radius:12px; margin-bottom:1rem; box-shadow: var(--shadow-sm); }
.social-row{ display:flex; gap:.6rem; margin-top:.6rem; }
.social{ display:inline-flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:8px; background: rgba(6,40,61,0.04); text-decoration:none; color:var(--navy); }

/* FOOTER */
.site-footer{ padding:1rem 0; border-top:1px solid rgba(10,20,30,0.04); background:transparent; color:var(--muted); }
.footer-grid{ display:flex; gap:1rem; align-items:center; justify-content:space-between; }

/* RESPONSIVE */
@media (max-width:1000px){
  .projects-grid{ grid-template-columns: repeat(2, 1fr); }
  .skills-grid{ grid-template-columns: repeat(2, 1fr); }
  .about-grid{ grid-template-columns: 1fr; }
  .hero-grid{ grid-template-columns: 1fr; text-align:left; gap:1.25rem; }
  .hero-visual{ display:flex; justify-content:center; }
}

@media (max-width:720px){
  .nav-links{ display:none; position:absolute; top:64px; right:16px; background:white; border-radius:10px; padding:.6rem; box-shadow:var(--shadow-lg); flex-direction:column; width:220px; }
  .nav-toggle{ display:block; }
  .container{ width:94%; }
  .projects-grid{ grid-template-columns: 1fr; }
  .skills-grid{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-grid{ flex-direction:column; gap:.6rem; }
}

/* small tweaks */
a{ color:inherit; }
small{ font-size:.9rem; color:var(--muted); }