/* ============================================================
   Ghouse Mohammed — Portfolio | Design System
   Style: Aurora Glassmorphism / Dark Tech
   ============================================================ */

:root{
  --bg-0:#05070f;
  --bg-1:#080b17;
  --bg-2:#0c1122;
  --card-bg: rgba(255,255,255,0.035);
  --card-bg-hover: rgba(255,255,255,0.06);
  --border-glass: rgba(255,255,255,0.09);
  --blue: #3b82f6;
  --cyan: #22d3ee;
  --purple: #8b5cf6;
  --text-1: #eef2fa;
  --text-2: #a3aec4;
  --text-3: #6b7690;
  --grad: linear-gradient(120deg, var(--blue), var(--cyan));
  --grad-soft: linear-gradient(120deg, rgba(59,130,246,.18), rgba(34,211,238,.18));
  --shadow-glow: 0 0 60px rgba(59,130,246,.18);
  --radius: 18px;
  --radius-sm: 10px;
  --font-h: 'Space Grotesk', sans-serif;
  --font-b: 'Inter', sans-serif;
  --ease: cubic-bezier(.16,.84,.44,1);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:90px; }

body{
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-b);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }

::selection{ background: var(--blue); color:#fff; }

::-webkit-scrollbar{ width:9px; }
::-webkit-scrollbar-track{ background: var(--bg-0); }
::-webkit-scrollbar-thumb{ background: linear-gradient(var(--blue),var(--cyan)); border-radius:10px; }

.section-inner{
  max-width:1180px;
  margin:0 auto;
  padding: 0 32px;
}

/* ---------- Background FX ---------- */
.bg-fx{ position:fixed; inset:0; z-index:-2; overflow:hidden; background:var(--bg-0); }
.orb{ position:absolute; border-radius:50%; filter:blur(90px); opacity:.35; }
.orb-1{ width:520px; height:520px; background:var(--blue); top:-160px; left:-120px; animation: float1 18s ease-in-out infinite; }
.orb-2{ width:460px; height:460px; background:var(--purple); top:35%; right:-160px; animation: float2 22s ease-in-out infinite; }
.orb-3{ width:400px; height:400px; background:var(--cyan); bottom:-140px; left:30%; animation: float1 20s ease-in-out infinite reverse; }
.grid-overlay{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 40%, transparent 75%);
}
@keyframes float1{ 0%,100%{ transform:translate(0,0) } 50%{ transform:translate(40px,60px) } }
@keyframes float2{ 0%,100%{ transform:translate(0,0) } 50%{ transform:translate(-50px,40px) } }

/* ---------- Scroll progress ---------- */
.scroll-progress{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background: var(--grad); z-index:1001; transition:width .1s linear;
}

/* ---------- Navbar ---------- */
.navbar{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:18px 0; transition: all .35s var(--ease);
  border-bottom:1px solid transparent;
}
.navbar.scrolled{
  padding:12px 0;
  background: rgba(5,7,15,.72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom:1px solid var(--border-glass);
}
.nav-container{
  max-width:1180px; margin:0 auto; padding:0 32px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-logo{ width:34px; height:34px; object-fit:contain; }
.brand-text{ font-family:var(--font-h); font-size:1.25rem; font-weight:700; letter-spacing:.3px; }
.brand-text .accent{ color: var(--cyan); }

.nav-links{ display:flex; gap:6px; align-items:center; }
.nav-link{
  font-size:.92rem; font-weight:500; color:var(--text-2);
  padding:8px 14px; border-radius:999px; position:relative;
  transition: color .25s, background .25s;
}
.nav-link:hover{ color:var(--text-1); }
.nav-link.active{ color:#fff; background: rgba(59,130,246,.14); }

.nav-cta{ font-size:.85rem; padding:9px 18px; white-space:nowrap; }

.hamburger{ display:none; flex-direction:column; gap:5px; width:26px; }
.hamburger span{ display:block; height:2px; width:100%; background:var(--text-1); border-radius:2px; transition: all .3s; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:13px 26px; border-radius:999px; font-weight:600; font-size:.95rem;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  white-space:nowrap;
}
.btn-primary{
  background: var(--grad); color:#04101f;
  box-shadow: 0 8px 30px rgba(59,130,246,.35);
}
.btn-primary:hover{ transform:translateY(-3px); box-shadow: 0 14px 40px rgba(59,130,246,.5); }
.btn-outline{
  border:1px solid var(--border-glass); color:var(--text-1);
  background: rgba(255,255,255,.03);
}
.btn-outline:hover{ background: rgba(255,255,255,.08); transform:translateY(-3px); }
.full-width{ width:100%; }

/* ---------- Reveal animation ---------- */
[data-reveal]{ opacity:0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].in-view{ opacity:1; transform:none; }

/* ---------- Section tags ---------- */
.section-tag{
  display:flex; align-items:center; gap:10px;
  font-size:.82rem; font-weight:700; letter-spacing:2px; text-transform:uppercase;
  color: var(--cyan); margin-bottom:14px;
}
.tag-line{ width:34px; height:2px; background: var(--grad); border-radius:2px; }
.section-title{
  font-family:var(--font-h); font-size:clamp(1.8rem, 3.4vw, 2.7rem); font-weight:700;
  margin-bottom:16px; letter-spacing:-.5px;
}
.section-sub{ color:var(--text-2); max-width:640px; margin-bottom:46px; font-size:1.02rem; }

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

section{ position:relative; padding:120px 0; }

/* ================= HERO ================= */
.hero{
  min-height:100vh; display:flex; flex-direction:column; justify-content:center;
  padding-top:140px; padding-bottom:60px;
}
.hero-grid{
  display:grid; grid-template-columns: 1.15fr .85fr; gap:50px; align-items:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:.85rem; color:var(--text-2); font-weight:600;
  padding:8px 16px; border:1px solid var(--border-glass); border-radius:999px;
  background: rgba(255,255,255,.03); margin-bottom:26px;
}
.dot-pulse{ width:8px; height:8px; border-radius:50%; background:var(--cyan); box-shadow:0 0 0 0 rgba(34,211,238,.6); animation:pulse 2s infinite; }
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(34,211,238,.6); }
  70%{ box-shadow:0 0 0 10px rgba(34,211,238,0); }
  100%{ box-shadow:0 0 0 0 rgba(34,211,238,0); }
}
.hero-title{
  font-family:var(--font-h); font-size:clamp(2.3rem, 5vw, 3.6rem); line-height:1.12; font-weight:700; letter-spacing:-1px;
  margin-bottom:14px;
}
.hero-role{
  font-family:var(--font-h); font-size:clamp(1.15rem, 2vw, 1.5rem); color:var(--text-2); font-weight:500;
  margin-bottom:22px; min-height:2rem;
}
.hero-role .cursor{ color:var(--cyan); animation: blink 1s step-end infinite; }
@keyframes blink{ 50%{ opacity:0; } }
.hero-desc{ color:var(--text-2); font-size:1.05rem; max-width:560px; margin-bottom:34px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:34px; }
.hero-social{ display:flex; gap:14px; margin-bottom:50px; }
.hero-social a{
  width:44px; height:44px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  border:1px solid var(--border-glass); background: rgba(255,255,255,.03); color:var(--text-2);
  transition: all .3s var(--ease);
}
.hero-social a:hover{ color:#04101f; background: var(--grad); transform:translateY(-4px); border-color:transparent; }

.hero-stats{ display:grid; grid-template-columns: repeat(4,1fr); gap:16px; max-width:520px; }
.stat{ }
.stat-num, .stat-suffix{ font-family:var(--font-h); font-size:1.7rem; font-weight:700; color:var(--text-1); }
.stat-suffix{ color:var(--cyan); }
.stat p{ font-size:.78rem; color:var(--text-3); margin-top:2px; }

.hero-visual{ position:relative; display:flex; align-items:center; justify-content:center; }
.glow-ring{
  position:absolute; width:88%; padding-bottom:88%; border-radius:50%;
  background: radial-gradient(circle, rgba(59,130,246,.25), transparent 65%);
  filter: blur(10px); animation: spin 14s linear infinite;
}
@keyframes spin{ from{ transform:rotate(0deg);} to{ transform:rotate(360deg);} }
.hero-img{
  position:relative; z-index:1; border-radius:26px; width:100%;
  box-shadow: 0 30px 80px rgba(0,0,0,.55), var(--shadow-glow);
  animation: floatImg 6s ease-in-out infinite;
}
@keyframes floatImg{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-16px);} }

.scroll-cue{
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  width:40px; height:40px; border-radius:50%; border:1px solid var(--border-glass);
  display:flex; align-items:center; justify-content:center; color:var(--text-2);
  animation: bounce 2s infinite;
}
@keyframes bounce{ 0%,100%{ transform:translate(-50%,0);} 50%{ transform:translate(-50%,8px);} }

/* ================= GLASS CARD BASE ================= */
.glass-card{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:30px 26px; backdrop-filter: blur(16px);
  transition: transform .35s var(--ease), background .35s, border-color .35s, box-shadow .35s;
}
.glass-card:hover{
  transform: translateY(-8px); background: var(--card-bg-hover); border-color: rgba(59,130,246,.4);
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.glass-card i{ font-size:1.8rem; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; margin-bottom:16px; display:block; }
.glass-card h3{ font-family:var(--font-h); font-size:1.08rem; margin-bottom:8px; }
.glass-card p{ color:var(--text-2); font-size:.92rem; }

/* ================= ABOUT ================= */
.about-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap:60px; align-items:start; }
.about-text p{ color:var(--text-2); margin-bottom:18px; font-size:1.02rem; }
.about-text strong{ color:var(--text-1); }
.about-facts{ display:grid; grid-template-columns: 1fr 1fr; gap:14px; margin-top:28px; }
.fact{ display:flex; align-items:center; gap:10px; font-size:.88rem; color:var(--text-2); }
.fact i{ color:var(--cyan); width:18px; }
.about-cards{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }

/* ================= SKILLS ================= */
.skills-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
.skill-card{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:28px; backdrop-filter: blur(16px); transition: all .35s var(--ease);
}
.skill-card:hover{ transform: translateY(-8px); border-color: rgba(34,211,238,.4); background: var(--card-bg-hover); }
.skill-icon{
  width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  background: var(--grad-soft); margin-bottom:18px; font-size:1.3rem; color:var(--cyan);
}
.skill-card h3{ font-family:var(--font-h); font-size:1.1rem; margin-bottom:16px; }
.chips{ display:flex; flex-wrap:wrap; gap:8px; }
.chips span{
  font-size:.78rem; padding:6px 12px; border-radius:999px; color:var(--text-2);
  border:1px solid var(--border-glass); background: rgba(255,255,255,.02);
  transition: all .25s;
}
.chips span:hover{ color:#fff; border-color:var(--blue); background: rgba(59,130,246,.15); }

/* ================= PLATFORMS STRIP ================= */
.platforms{ padding:70px 0; border-top:1px solid var(--border-glass); border-bottom:1px solid var(--border-glass); }
.platforms-label{ text-align:center; color:var(--text-3); font-size:.85rem; letter-spacing:1px; text-transform:uppercase; margin-bottom:30px; }
.platforms-row{ display:flex; flex-wrap:wrap; justify-content:center; gap:16px; }
.platform-chip{
  display:flex; align-items:center; gap:10px; padding:12px 22px; border-radius:999px;
  border:1px solid var(--border-glass); background:var(--card-bg); font-weight:600; font-size:.92rem;
  transition: all .3s;
}
.platform-chip i{ color:var(--cyan); font-size:1.1rem; }
.platform-chip:hover{ border-color: var(--blue); transform:translateY(-4px); }

/* ================= EXPERIENCE / TIMELINE ================= */
.timeline{ position:relative; padding-left:34px; }
.timeline::before{
  content:''; position:absolute; left:6px; top:6px; bottom:6px; width:2px;
  background: linear-gradient(var(--blue), var(--cyan), transparent);
}
.timeline-item{ position:relative; padding-bottom:44px; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-dot{
  position:absolute; left:-34px; top:6px; width:14px; height:14px; border-radius:50%;
  background: var(--grad); box-shadow:0 0 0 5px rgba(59,130,246,.15);
}
.timeline-card{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:26px 28px; backdrop-filter: blur(16px); transition: all .35s var(--ease);
}
.timeline-card:hover{ border-color: rgba(59,130,246,.4); background: var(--card-bg-hover); }
.timeline-date{
  display:inline-block; font-size:.76rem; font-weight:700; letter-spacing:.5px;
  color:var(--cyan); background: rgba(34,211,238,.1); padding:4px 12px; border-radius:999px; margin-bottom:12px;
}
.timeline-card h3{ font-family:var(--font-h); font-size:1.2rem; margin-bottom:4px; }
.timeline-org{ color:var(--text-2); font-size:.9rem; margin-bottom:14px; font-weight:500; }
.timeline-card ul{ display:flex; flex-direction:column; gap:8px; }
.timeline-card li{
  position:relative; padding-left:18px; color:var(--text-2); font-size:.92rem;
}
.timeline-card li::before{
  content:''; position:absolute; left:0; top:9px; width:6px; height:6px; border-radius:50%; background:var(--blue);
}

/* ================= CERTIFICATIONS ================= */
.cert-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap:20px; }
.cert-card{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:28px 20px; text-align:center; backdrop-filter: blur(16px); transition: all .35s var(--ease);
}
.cert-card:hover{ transform:translateY(-8px) scale(1.02); border-color: var(--cyan); box-shadow: 0 20px 40px rgba(34,211,238,.15); }
.cert-card i{ font-size:2rem; margin-bottom:16px; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.cert-card h4{ font-family:var(--font-h); font-size:.92rem; font-weight:600; line-height:1.4; }

/* ================= PROJECTS ================= */
.project-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
.project-card{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:30px 26px; backdrop-filter: blur(16px); transition: all .35s var(--ease);
}
.project-card:hover{ transform:translateY(-8px); border-color: rgba(139,92,246,.4); background: var(--card-bg-hover); }
.project-card i{ font-size:1.6rem; margin-bottom:16px; color:var(--purple); }
.project-card h3{ font-family:var(--font-h); font-size:1.05rem; margin-bottom:10px; }
.project-card p{ color:var(--text-2); font-size:.9rem; }

/* ================= CONTACT ================= */
.contact-grid{ display:grid; grid-template-columns: .85fr 1.15fr; gap:40px; }
.contact-info{ display:flex; flex-direction:column; gap:14px; }
.contact-item{
  display:flex; align-items:center; gap:16px; padding:18px 20px;
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius-sm);
  transition: all .3s;
}
.contact-item:hover{ border-color: var(--blue); background: var(--card-bg-hover); transform: translateX(6px); }
.contact-item i{
  width:42px; height:42px; flex-shrink:0; display:flex; align-items:center; justify-content:center;
  border-radius:12px; background: var(--grad-soft); color:var(--cyan); font-size:1.05rem;
}
.contact-item span{ font-size:.76rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.5px; }
.contact-item p{ font-size:.94rem; color:var(--text-1); font-weight:500; }

.contact-form{
  background: var(--card-bg); border:1px solid var(--border-glass); border-radius: var(--radius);
  padding:32px; display:flex; flex-direction:column; gap:16px; backdrop-filter: blur(16px);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-form input, .contact-form textarea{
  width:100%; padding:14px 16px; border-radius:12px; border:1px solid var(--border-glass);
  background: rgba(255,255,255,.03); color:var(--text-1); font-family:inherit; font-size:.92rem;
  transition: border-color .25s, background .25s;
}
.contact-form input:focus, .contact-form textarea:focus{
  outline:none; border-color:var(--blue); background: rgba(255,255,255,.05);
}
.contact-form textarea{ resize:vertical; }
.contact-form input::placeholder, .contact-form textarea::placeholder{ color:var(--text-3); }

/* ================= FOOTER ================= */
.footer{ padding:50px 0; border-top:1px solid var(--border-glass); }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:20px; }
.footer-inner p{ color:var(--text-3); font-size:.85rem; }
.footer-social{ display:flex; gap:14px; }
.footer-social a{
  width:38px; height:38px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  border:1px solid var(--border-glass); color:var(--text-2); transition: all .3s;
}
.footer-social a:hover{ background:var(--grad); color:#04101f; border-color:transparent; }

.back-to-top{
  position:fixed; bottom:28px; right:28px; width:48px; height:48px; border-radius:50%;
  background: var(--grad); color:#04101f; display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 30px rgba(59,130,246,.4); opacity:0; visibility:hidden; transform:translateY(20px);
  transition: all .35s var(--ease); z-index:900;
}
.back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
.back-to-top:hover{ transform:translateY(-4px); }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; max-width:380px; margin:0 auto; }
  .about-grid, .contact-grid{ grid-template-columns:1fr; }
  .skills-grid, .project-grid{ grid-template-columns: repeat(2,1fr); }
  .cert-grid{ grid-template-columns: repeat(3,1fr); }
}

@media (max-width: 760px){
  section{ padding:80px 0; }
  .section-inner{ padding:0 22px; }
  .nav-links{
    position:fixed; top:70px; left:16px; right:16px;
    flex-direction:column; align-items:stretch; gap:4px;
    background: rgba(8,11,23,.97); backdrop-filter: blur(20px);
    border:1px solid var(--border-glass); border-radius:18px; padding:14px;
    transform: translateY(-16px) scale(.98); opacity:0; visibility:hidden; pointer-events:none;
    transition: all .3s var(--ease);
  }
  .nav-links.open{ transform:none; opacity:1; visibility:visible; pointer-events:auto; }
  .nav-link{ padding:12px 16px; border-radius:10px; }
  .nav-cta{ display:none; }
  .hamburger{ display:flex; }

  .hero-stats{ grid-template-columns: repeat(2,1fr); }
  .about-facts{ grid-template-columns:1fr; }
  .about-cards{ grid-template-columns:1fr; }
  .skills-grid, .project-grid{ grid-template-columns:1fr; }
  .cert-grid{ grid-template-columns: repeat(2,1fr); }
  .form-row{ grid-template-columns:1fr; }
  .platforms-row{ gap:10px; }
}