/* 
 * Premium Aesthetic Stylesheet for Ihab Hamad Portfolio
 * Dark mode, Glassmorphism, Micro-animations 
 */

:root {
  --bg-color: #0a0a0f;
  --bg-gradient: radial-gradient(circle at top right, #1a1a2e 0%, #0a0a0f 60%);
  --text-main: #f8f8f2;
  --text-mute: #a0a0b0;
  --primary: #3b82f6;    /* Neon Blue */
  --secondary: #8b5cf6;  /* Purple */
  --accent: #ef4444;     /* Cisco Red accent */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Monaco, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding: 0 clamp(20px, 5vw, 80px) 60px;
  max-width: 1440px;
  margin: 0 auto;
  overflow-x: hidden;
}

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

a {
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary);
}

/* Utilities */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.glow-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 700;
}

.red {
  color: var(--accent);
}

/* skip link for a11y */
.skip { position: absolute; left: -9999px; }

/* Grid Layout */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.row {
  grid-column: 1 / -1;
  margin-top: 80px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.row.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Header / Nav */
.head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--glass-border);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 13px;
  font-weight: 500;
  position: sticky;
  top: 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.head .a span { color: var(--accent); }

.head nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.head nav a {
  color: var(--text-mute);
  position: relative;
}

.head nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.head nav a:hover { color: var(--text-main); }
.head nav a:hover::after { width: 100%; }

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: center;
  margin-top: 40px;
}

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 96px);
  line-height: 1.05;
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-content h1 b { font-weight: 700; }
.hero-content h1 .sl { 
  font-size: clamp(24px, 3vw, 40px);
  color: var(--text-mute); 
}

.lede {
  font-size: 20px;
  line-height: 1.6;
  color: var(--text-mute);
  margin-bottom: 40px;
  max-width: 45ch;
}

.lede em {
  font-style: normal;
  color: var(--text-main);
  font-weight: 500;
}

.meta {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-mute);
}

.meta div {
  display: flex;
  flex-direction: column;
}

.meta b {
  font-family: var(--font-display);
  color: var(--primary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.meta a { text-decoration: underline; text-underline-offset: 4px; }

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59,130,246,0.3) 0%, rgba(139,92,246,0) 70%);
  z-index: 0;
  animation: pulse 6s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.5; }
  100% { transform: scale(1.1); opacity: 0.8; }
}

.hero-img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 450px;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  border: 1px solid var(--glass-border);
  transition: transform 0.5s ease;
}

.hero-img:hover {
  transform: translateY(-10px);
}

/* Section Headings */
h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

h2 b { font-weight: 700; }

.num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  display: block;
}

/* Prose (About) */
#about {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.prose {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-mute);
}

.prose p { margin-bottom: 24px; }
.prose strong { color: var(--text-main); font-weight: 500; }
.prose a { color: var(--primary); text-decoration: underline; }

.quick {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.aside {
  padding: 32px;
  align-self: start;
}

.aside h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-main);
  margin-bottom: 24px;
}

.aside ul { list-style: none; }
.aside li {
  padding: 12px 0;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}
.aside li:last-child { border: none; }
.aside li b { color: var(--text-mute); font-weight: 400; }

/* Disciplines */
#disciplines {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

#disciplines > .num, #disciplines > h2 {
  grid-column: 1 / -1;
}

.item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.item:hover {
  transform: translateY(-8px);
  background: var(--glass-hover);
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.15);
}

.item .n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-mute);
  margin-bottom: 16px;
}

.item h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-main);
}

.item p {
  color: var(--text-mute);
  font-size: 15px;
  margin-bottom: 24px;
}

.item .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.item .tags span {
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--secondary);
}

/* Timeline */
.tl {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tl .job {
  display: grid;
  grid-template-columns: 200px 1fr 150px;
  gap: 32px;
  padding: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  align-items: start;
  transition: transform 0.3s ease;
}

.tl .job:hover { transform: scale(1.01); border-color: rgba(255,255,255,0.15); }

.tl .job .when {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-mute);
}

.tl .job .when b {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text-main);
  margin-bottom: 4px;
}

.tl .job h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: 8px;
}

.tl .job .org {
  color: var(--primary);
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 500;
}

.tl .job p { color: var(--text-mute); font-size: 16px; }

.tl .job .tag {
  justify-self: end;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  padding: 6px 16px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tl .job.now .tag {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 15px rgba(59,130,246,0.4);
}

/* Certifications */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.cert {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s ease;
}

.cert:hover {
  background: var(--glass-hover);
  transform: translateY(-5px);
  border-color: var(--secondary);
}

.cert h4 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 8px;
}

.cert .v {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cert .desc {
  font-size: 14px;
  color: var(--text-mute);
  margin-top: 12px;
}

.cert .id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-mute);
  margin-top: 16px;
  display: inline-block;
  background: rgba(255,255,255,0.05);
  padding: 4px 8px;
  border-radius: 4px;
}

/* FAQ */
.faq {
  max-width: 900px;
  margin: 0 auto;
}

.faq details {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
}

.faq summary {
  padding: 24px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: background 0.3s;
}

.faq summary:hover { background: rgba(255,255,255,0.02); }
.faq summary::-webkit-details-marker { display: none; }

.faq summary .q {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 14px;
}

.faq summary .arrow {
  margin-left: auto;
  transition: transform 0.3s;
  color: var(--text-mute);
}

.faq details[open] summary .arrow { transform: rotate(45deg); color: var(--primary); }

.faq details p {
  padding: 0 24px 24px 64px;
  color: var(--text-mute);
  font-size: 16px;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 60px;
}

.contact h3 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.1;
  font-weight: 300;
}

.contact ul {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 15px;
}

.contact li {
  display: flex;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
}

.contact li:first-child { border-top: 1px solid var(--glass-border); }

.contact li small {
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Footer */
footer {
  margin-top: 120px;
  padding-top: 40px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero-img { margin: 0 auto; }
  .meta { justify-content: center; }
  #about { grid-template-columns: 1fr; }
  .tl .job { grid-template-columns: 150px 1fr; }
  .tl .job .tag { grid-column: 1 / -1; justify-self: start; }
  .contact { grid-template-columns: 1fr; padding: 40px 24px; }
}

@media (max-width: 768px) {
  body { padding: 0 20px 40px; }
  .head { flex-direction: column; gap: 16px; align-items: flex-start; }
  .tl .job { grid-template-columns: 1fr; gap: 16px; }
  .tl .job .when { margin-bottom: 8px; }
  footer { flex-direction: column; gap: 16px; text-align: center; align-items: center; }
  .faq details p { padding-left: 24px; }
  .contact li { flex-direction: column; align-items: flex-start; gap: 8px; }
  .contact li a, .contact li span { word-break: break-all; }
}