/* ============================================
   ProSnap Portfolio — Main Stylesheet
   ============================================ */

:root {
  --bg-primary:    #0a0e17;
  --bg-secondary:  #111827;
  --bg-card:       #161d2e;
  --bg-card-hover: #1e2a42;
  --accent:        #38bdf8;
  --accent-alt:    #818cf8;
  --accent-green:  #34d399;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #64748b;
  --border:        #1e293b;
  --border-glow:   rgba(56, 189, 248, 0.3);
  --radius:        12px;
  --radius-sm:     8px;
  --transition:    0.25s ease;
  --font-main:     'Inter', system-ui, sans-serif;
  --font-mono:     'JetBrains Mono', 'Fira Code', monospace;
  --max-width:     1200px;
  --nav-height:    70px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

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

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

/* ── Typography ── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p  { color: var(--text-secondary); }
a  { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #7dd3fc; }
code, .mono { font-family: var(--font-mono); }

/* ── Layout ── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 6rem 0; }
.section-sm { padding: 3rem 0; }

/* ── Navigation ── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  display: flex; align-items: center;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition);
}
nav .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav-logo {
  font-size: 1.35rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.nav-links { display: flex; gap: 2rem; align-items: center; list-style: none; }
.nav-links a {
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  position: relative; transition: color var(--transition);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent); transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  background: var(--accent) !important; color: var(--bg-primary) !important;
  padding: 0.45rem 1.1rem; border-radius: 6px; font-weight: 600;
  -webkit-text-fill-color: var(--bg-primary) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: #7dd3fc !important; }

/* Hamburger */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  transition: all var(--transition); border: none;
}
.btn-primary { background: var(--accent); color: var(--bg-primary); }
.btn-primary:hover { background: #7dd3fc; color: var(--bg-primary); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(56,189,248,0.35); }
.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover { background: rgba(56,189,248,0.1); transform: translateY(-2px); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

/* ── Section Headers ── */
.section-label {
  display: inline-block; font-family: var(--font-mono);
  font-size: 0.8rem; color: var(--accent); letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-title { margin-bottom: 1rem; }
.section-desc  { max-width: 580px; margin-bottom: 3rem; font-size: 1.05rem; }
.section-header-center { text-align: center; }
.section-header-center .section-desc { margin-left: auto; margin-right: auto; }

/* ── Gradient Text ── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-alt) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* ── Divider ── */
.divider {
  width: 60px; height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-alt));
  margin: 1.25rem 0;
}
.divider-center { margin: 1.25rem auto; }

/* ── Tags ── */
.tag {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.7rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
  background: rgba(56,189,248,0.12); color: var(--accent); border: 1px solid rgba(56,189,248,0.25);
}
.tag-purple { background: rgba(129,140,248,0.12); color: var(--accent-alt); border-color: rgba(129,140,248,0.25); }
.tag-green  { background: rgba(52,211,153,0.12); color: var(--accent-green); border-color: rgba(52,211,153,0.25); }
.tag-orange { background: rgba(251,146,60,0.12); color: #fb923c; border-color: rgba(251,146,60,0.25); }

/* ── Card ── */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover); border-color: var(--border-glow);
  transform: translateY(-4px); box-shadow: 0 12px 40px rgba(56,189,248,0.1);
}

/* ── Hero (index.html) ── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--nav-height);
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 800px 600px at 70% 50%, rgba(56,189,248,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 600px 500px at 20% 80%, rgba(129,140,248,0.05) 0%, transparent 70%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(30,41,59,0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,41,59,0.4) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-eyebrow {
  display: flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent);
  margin-bottom: 1.25rem;
}
.hero-eyebrow::before { content: ''; display: block; width: 32px; height: 1.5px; background: var(--accent); }
.hero-headline { margin-bottom: 1.5rem; }
.hero-headline .name { display: block; }
.hero-sub { font-size: 1.15rem; margin-bottom: 2rem; max-width: 480px; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 2.5rem; margin-top: 3.5rem; }
.hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }

.hero-visual {
  display: flex; justify-content: center; align-items: center;
}
.hero-terminal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; width: 100%; max-width: 420px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(56,189,248,0.1);
}
.terminal-bar { display: flex; gap: 0.5rem; margin-bottom: 1.25rem; }
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #ffbd2e; }
.terminal-dot:nth-child(3) { background: #28c840; }
.terminal-line { font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.9; }
.terminal-prompt { color: var(--accent-green); }
.terminal-cmd   { color: var(--text-primary); }
.terminal-out   { color: var(--text-secondary); padding-left: 1rem; }
.terminal-out.hi { color: var(--accent); font-weight: 600; }
.terminal-cursor { display: inline-block; width: 8px; height: 14px; background: var(--accent); animation: blink 1s step-end infinite; vertical-align: text-bottom; margin-left: 2px; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── About Section ── */
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 4rem; align-items: start; }
.about-avatar {
  width: 200px; height: 200px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem; margin-bottom: 1.5rem;
  box-shadow: 0 0 0 4px var(--bg-card), 0 0 0 6px rgba(56,189,248,0.3);
}
.about-list { list-style: none; display: flex; flex-direction: column; gap: 0.85rem; margin-top: 1.5rem; }
.about-list li { display: flex; align-items: center; gap: 0.75rem; color: var(--text-secondary); font-size: 0.95rem; }
.about-list li i { color: var(--accent); width: 18px; }
.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.skill-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.1rem 1.25rem;
}
.skill-card h4 { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.6rem; text-transform: uppercase; letter-spacing: 1px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* ── Featured Projects (index.html) ── */
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem;
  display: flex; flex-direction: column; gap: 1rem;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-alt));
  opacity: 0; transition: opacity var(--transition);
}
.project-card:hover::before { opacity: 1; }
.project-card:hover {
  background: var(--bg-card-hover); border-color: var(--border-glow);
  transform: translateY(-5px); box-shadow: 0 15px 40px rgba(56,189,248,0.12);
}
.project-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: rgba(56,189,248,0.12); border: 1px solid rgba(56,189,248,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.project-card h3 { font-size: 1.1rem; }
.project-card p  { font-size: 0.9rem; flex: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.project-links { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.project-link {
  font-size: 0.82rem; font-weight: 600; color: var(--accent);
  display: flex; align-items: center; gap: 0.3rem;
  transition: color var(--transition);
}
.project-link:hover { color: #7dd3fc; }

/* ── Contact Section ── */
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.contact-links { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; }
.contact-link-item {
  display: flex; align-items: center; gap: 1rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1rem 1.25rem;
  transition: all var(--transition); color: var(--text-primary);
}
.contact-link-item:hover {
  border-color: var(--accent); background: var(--bg-card-hover);
  color: var(--accent); transform: translateX(4px);
}
.contact-link-item i { width: 20px; color: var(--accent); font-size: 1.1rem; }
.contact-link-item span { font-size: 0.9rem; font-weight: 500; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
.form-group input, .form-group textarea {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.75rem 1rem;
  color: var(--text-primary); font-family: var(--font-main); font-size: 0.9rem;
  transition: border-color var(--transition); outline: none;
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ── Footer ── */
footer {
  background: var(--bg-secondary); border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1.5rem;
}
.footer-logo {
  font-size: 1.2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.footer-text { font-size: 0.85rem; color: var(--text-muted); }
.footer-socials { display: flex; gap: 1rem; }
.social-btn {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); font-size: 0.95rem;
  transition: all var(--transition);
}
.social-btn:hover { background: rgba(56,189,248,0.1); border-color: var(--accent); color: var(--accent); }

/* ── Portfolio Page ── */
.portfolio-hero {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 3rem;
}
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  margin-bottom: 3rem;
}
.filter-btn {
  padding: 0.5rem 1.2rem; border-radius: 20px; border: 1.5px solid var(--border);
  background: transparent; color: var(--text-secondary);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all var(--transition); font-family: var(--font-main);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent); color: var(--accent);
  background: rgba(56,189,248,0.1);
}
.portfolio-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.port-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: all var(--transition);
  display: flex; flex-direction: column;
}
.port-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px); box-shadow: 0 15px 40px rgba(56,189,248,0.1);
}
.port-card-banner {
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem; position: relative; overflow: hidden;
}
.banner-steam   { background: linear-gradient(135deg, #1a2744, #0e1a35); }
.banner-mobile  { background: linear-gradient(135deg, #1a1a44, #0e0e35); }
.banner-ai      { background: linear-gradient(135deg, #0f2a1a, #091a10); }
.banner-homelab { background: linear-gradient(135deg, #2a1a0f, #1a0f09); }
.banner-web     { background: linear-gradient(135deg, #1a0f2a, #110922); }
.banner-tutorial { background: linear-gradient(135deg, #1a2020, #0f1a1a); }
.port-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; gap: 0.75rem; }
.port-meta { display: flex; justify-content: space-between; align-items: center; }
.port-category {
  font-size: 0.72rem; font-family: var(--font-mono); text-transform: uppercase;
  letter-spacing: 2px; color: var(--text-muted);
}
.port-status-live   { font-size: 0.75rem; font-weight: 600; color: var(--accent-green); display: flex; align-items: center; gap: 0.3rem; }
.port-status-wip    { font-size: 0.75rem; font-weight: 600; color: #fb923c; }
.port-status-done   { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); }
.port-status-live::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
.port-card-body h3 { font-size: 1.05rem; }
.port-card-body p  { font-size: 0.88rem; flex: 1; }
.port-tech { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.25rem; }
.port-actions { display: flex; gap: 0.75rem; padding: 0 1.5rem 1.5rem; }

/* ── Back to top ── */
.back-top {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--accent); color: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; cursor: pointer; border: none;
  opacity: 0; pointer-events: none; transition: all var(--transition);
  z-index: 999;
}
.back-top.visible { opacity: 1; pointer-events: all; }
.back-top:hover { background: #7dd3fc; transform: translateY(-3px); }

/* ── Animations ── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-eyebrow { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-stats   { justify-content: center; }
  .hero-visual  { display: none; }
  .about-grid   { grid-template-columns: 1fr; }
  .about-avatar { margin: 0 auto; }
  .featured-grid { grid-template-columns: 1fr 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .featured-grid { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
  .nav-links     { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: var(--bg-secondary); padding: 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .form-row { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
}