/* ==============================================
   AMR.SEC PORTFOLIO — STYLE SYSTEM
   Designer: Amer Khan | Role: SOC Analyst
   Theme: Cybersecurity Terminal / Blue Team
   ============================================== */

/* --- CSS CUSTOM PROPERTIES (DESIGN TOKENS) --- */
:root {
  --black:       #000000;
  --bg-deep:     #020505;
  --bg-dark:     #050e0e;
  --bg-card:     #081212;
  --bg-card-2:   #0b1a1a;
  --border:      #0d2a2a;
  --border-glow: #00ff9f33;
  --green:       #00ff9f;
  --green-dim:   #00cc7e;
  --green-faint: #00ff9f18;
  --green-glow:  #00ff9f66;
  --white:       #e8fff5;
  --gray:        #4a7a6a;
  --gray-light:  #7ab8a0;
  --red-alert:   #ff3f3f;
  --yellow:      #ffcc00;
  --font-mono:   'JetBrains Mono', 'Share Tech Mono', 'Courier New', monospace;
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   14px;
  --transition:  0.3s ease;
  --trans-slow:  0.6s ease;
  --shadow-glow: 0 0 20px #00ff9f33, 0 0 40px #00ff9f15;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.7);
}

/* --- RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-deep);
  color: var(--white);
  font-family: var(--font-mono);
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none; /* Use custom cursor */
}

a {
  color: var(--green);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--white); }

::selection {
  background: var(--green);
  color: var(--black);
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- CUSTOM CURSOR --- */
#cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  box-shadow: 0 0 10px var(--green), 0 0 20px var(--green-glow);
}
#cursor-ring {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: all 0.12s ease;
  opacity: 0.6;
}
body:has(a:hover) #cursor-dot,
body:has(button:hover) #cursor-dot {
  width: 14px;
  height: 14px;
  background: var(--green);
}
body:has(a:hover) #cursor-ring,
body:has(button:hover) #cursor-ring {
  width: 46px;
  height: 46px;
  opacity: 0.9;
  border-color: var(--green);
}

/* --- LIVE LOG STREAM --- */
#log-stream {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 1000;
  font-size: 0.68rem;
  color: var(--green-dim);
  opacity: 0.7;
  pointer-events: none;
  max-width: 340px;
}
#log-content .log-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
  animation: logFadeIn 0.4s ease;
}
#log-content .log-line .log-time {
  color: var(--gray);
  user-select: none;
}
#log-content .log-line .log-msg {
  color: var(--green-dim);
}
#log-content .log-line.alert-line .log-msg { color: var(--red-alert); }
#log-content .log-line.ok-line .log-msg { color: var(--green); }
@keyframes logFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* --- CONTAINER --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* --- UTILITY CLASSES --- */
.blink {
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

.pulse {
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

/* --- TYPOGRAPHY --- */
.section-header {
  margin-bottom: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.section-tag {
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.12em;
  opacity: 0.7;
}
.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--green);
  text-shadow: 0 0 20px var(--green-glow);
}
.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--green) 0%, transparent 100%);
  opacity: 0.3;
}
.section-desc {
  font-size: 0.9rem;
  color: var(--gray-light);
  margin-top: -36px;
  margin-bottom: 48px;
  max-width: 600px;
}

/* ============================
   NAVIGATION
============================= */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 5000;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(2, 5, 5, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
#navbar.scrolled {
  box-shadow: 0 0 30px #00ff9f10;
}
.nav-brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
}
.brand-bracket { color: var(--green); }
.brand-name { color: var(--white); }
.brand-cursor { color: var(--green); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 4px;
}
.nav-links a {
  font-size: 0.72rem;
  color: var(--gray-light);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
  background: var(--green-faint);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============================
   HERO SECTION
============================= */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 32px 80px;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.45;
}

.scan-lines {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,255,159,0.015) 2px,
    rgba(0,255,159,0.015) 4px
  );
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(0,255,159,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,159,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 820px;
  width: 100%;
}

.hero-status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.68rem;
  color: var(--green-dim);
  letter-spacing: 0.15em;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green);
}

.hero-terminal-line {
  font-size: 0.85rem;
  color: var(--gray-light);
  margin-bottom: 16px;
}
.terminal-prompt { color: var(--green); }

.hero-name {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
  margin-bottom: 20px;
  color: var(--white);
}

/* GLITCH EFFECT */
.glitch { position: relative; }
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  line-height: inherit;
}
.glitch::before {
  color: #00ffff;
  animation: glitch-1 3.5s infinite;
  clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
}
.glitch::after {
  color: var(--green);
  animation: glitch-2 3.5s infinite;
  clip-path: polygon(0 65%, 100% 65%, 100% 80%, 0 80%);
}
@keyframes glitch-1 {
  0%, 90%, 100% { transform: translateX(0); opacity: 0; }
  91%           { transform: translateX(-4px); opacity: 0.8; }
  93%           { transform: translateX(4px);  opacity: 0.8; }
  95%           { transform: translateX(-2px); opacity: 0.8; }
  97%           { transform: translateX(0);    opacity: 0; }
}
@keyframes glitch-2 {
  0%, 88%, 100% { transform: translateX(0); opacity: 0; }
  89%           { transform: translateX(3px);  opacity: 0.7; }
  91%           { transform: translateX(-3px); opacity: 0.7; }
  93%           { transform: translateX(0);    opacity: 0; }
}

.hero-role {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--green);
  margin-bottom: 20px;
  min-height: 2rem;
}
.role-prefix { opacity: 0.5; }
.type-cursor { color: var(--green); }

.hero-bio {
  font-size: 0.9rem;
  color: var(--gray-light);
  max-width: 540px;
  margin-bottom: 24px;
  line-height: 1.8;
}
.bio-highlight {
  color: var(--green);
  font-weight: 600;
}

/* Skill tag pills */
.hero-skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
.htag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  padding: 5px 12px;
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 999px;
  color: var(--green-dim);
  background: rgba(0,255,159,0.05);
  letter-spacing: 0.06em;
  transition: all var(--transition);
}
.htag:hover {
  background: rgba(0,255,159,0.12);
  border-color: var(--green);
  color: var(--green);
}
.htag i { font-size: 0.65rem; }

.hero-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  min-width: 140px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-card:hover { border-color: var(--green); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
.stat-card:hover::before { opacity: 1; }
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}
.stat-label {
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.08em;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--green);
  color: var(--black);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 2px solid var(--green);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn-primary:hover {
  background: transparent;
  color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--green);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn-secondary:hover {
  background: var(--green-faint);
  box-shadow: 0 0 20px var(--green-glow);
  color: var(--white);
}


/* ============================
   SECTION BASE STYLES
============================= */
section {
  padding: 120px 0;
}
section:nth-child(even) {
  background: var(--bg-dark);
}

/* ============================
   TERMINAL REUSABLE UI
============================= */
.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #0d1f1f;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border-bottom: 1px solid var(--border);
}
.t-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.t-dot.red    { background: #ff5f57; }
.t-dot.yellow { background: #febc2e; }
.t-dot.green  { background: #28c840; }
.t-title {
  font-size: 0.72rem;
  color: var(--gray);
  margin-left: 8px;
}

.terminal-body {
  background: var(--bg-card);
  padding: 24px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow-x: auto;
}

/* ============================
   ABOUT SECTION
============================= */
#about { padding: 120px 0; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition);
}
.about-terminal:hover {
  box-shadow: var(--shadow-glow), var(--shadow-card);
  border-color: var(--border-glow);
}

.code-block {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  white-space: pre-wrap;
}
.json-key   { color: var(--green); }
.json-val   { color: #a8ff78; }
.json-brace { color: var(--gray-light); }

.about-headline {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.4;
}
.about-text {
  font-size: 0.85rem;
  color: var(--gray-light);
  margin-bottom: 16px;
  line-height: 1.9;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}
.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  color: var(--gray-light);
  transition: all var(--transition);
}
.skill-item i {
  color: var(--green);
  font-size: 0.9rem;
}
.skill-item:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-faint);
  transform: translateX(4px);
}

/* ============================
   EDUCATION SECTION
============================= */
#education { background: var(--bg-dark); }

.edu-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.edu-timeline {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.timeline-header {
  padding: 16px 24px;
  background: #0d1f1f;
  font-size: 0.78rem;
  color: var(--gray-light);
  border-bottom: 1px solid var(--border);
}
.t-prompt { color: var(--green); user-select: none; }

.timeline-entries {
  padding: 28px 28px 28px 16px;
}
.timeline-entry {
  display: flex;
  gap: 20px;
  margin-bottom: 36px;
  position: relative;
}
.timeline-entry:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 14px;
  bottom: -36px;
  width: 1px;
  background: linear-gradient(to bottom, var(--green-dim), transparent);
  opacity: 0.25;
}
.tl-marker {
  width: 12px;
  height: 12px;
  background: var(--green);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
  box-shadow: 0 0 10px var(--green-glow);
}
.tl-marker.future {
  background: transparent;
  border: 2px dashed var(--green-dim);
  box-shadow: none;
}
.tl-year {
  font-size: 0.75rem;
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 4px;
}
.tl-event {
  font-size: 0.82rem;
  color: var(--white);
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.tl-detail {
  font-size: 0.75rem;
  color: var(--gray);
  line-height: 1.7;
}

/* Certifications Panel */
.cert-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.cert-panel-title {
  font-size: 0.78rem;
  color: var(--green);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all var(--transition);
}
.cert-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
.cert-badge {
  width: 40px;
  height: 40px;
  background: var(--green-faint);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  font-size: 1.1rem;
  margin-bottom: 12px;
}
.cert-badge.locked { color: var(--gray); }
.cert-info h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.cert-info p {
  font-size: 0.72rem;
  color: var(--gray);
  line-height: 1.6;
}
.cert-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cert-status.in-progress {
  background: rgba(255,204,0,0.12);
  color: var(--yellow);
  border: 1px solid rgba(255,204,0,0.3);
}
.cert-status.planned {
  background: var(--green-faint);
  color: var(--green-dim);
  border: 1px solid var(--border);
}
.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--yellow);
  border-radius: 50%;
  animation: pulse 1.5s ease infinite;
}
.cert-progress-bar {
  position: relative;
  background: var(--border);
  border-radius: 999px;
  height: 4px;
  margin-top: 12px;
  overflow: visible;
}
.cert-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green-dim) 0%, var(--green) 100%);
  border-radius: 999px;
  box-shadow: 0 0 6px var(--green-glow);
}
.cert-progress-pct {
  position: absolute;
  right: 0;
  top: -16px;
  font-size: 0.65rem;
  color: var(--green);
}

.education-degree {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--green-faint);
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: var(--radius-md);
  padding: 18px;
}
.degree-icon {
  font-size: 1.6rem;
  color: var(--green);
  flex-shrink: 0;
}
.degree-info h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--white);
}
.degree-college {
  display: block;
  font-size: 0.72rem;
  color: var(--gray-light);
  margin-top: 2px;
}
.degree-duration {
  display: block;
  font-size: 0.68rem;
  color: var(--green-dim);
  margin-top: 4px;
}

/* ============================
   PROJECTS SECTION
============================= */
#projects { padding: 120px 0; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  cursor: pointer;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow), var(--shadow-card);
  transform: translateY(-4px);
}
.project-card:hover::before { opacity: 1; }

.proj-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.proj-icon {
  width: 44px;
  height: 44px;
  background: var(--green-faint);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--green);
}
.proj-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.tag {
  font-size: 0.6rem;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--gray-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.proj-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.proj-desc {
  font-size: 0.78rem;
  color: var(--gray-light);
  line-height: 1.8;
  margin-bottom: 16px;
}
.proj-insight {
  font-size: 0.74rem;
  color: var(--green-dim);
  background: var(--green-faint);
  border-left: 2px solid var(--green);
  padding: 8px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 16px;
  font-style: italic;
}
.insight-label {
  color: var(--green);
  font-style: normal;
  font-weight: 600;
  margin-right: 6px;
}
.proj-footer {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.proj-skill {
  font-size: 0.64rem;
  padding: 3px 10px;
  background: var(--bg-card-2);
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 999px;
  color: var(--green-dim);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.proj-expand-hint {
  text-align: right;
  font-size: 0.65rem;
  color: var(--gray);
  margin-top: 14px;
  opacity: 0.6;
  transition: opacity var(--transition);
}
.project-card:hover .proj-expand-hint { opacity: 1; color: var(--green); }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(8px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}
.modal-overlay[hidden] { display: none; }
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 0 60px #00ff9f22, var(--shadow-card);
  animation: slideUp 0.3s ease;
  position: relative;
}
@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  color: var(--gray-light);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition);
  font-size: 0.9rem;
}
.modal-close:hover { border-color: var(--green); color: var(--green); }
.modal-terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #0d1f1f;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: 1px solid var(--border);
}
.modal-terminal-title {
  font-size: 0.72rem;
  color: var(--gray);
  margin-left: 8px;
}
.modal-body {
  padding: 32px;
}
.modal-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 16px;
}
.modal-body .modal-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.modal-body .modal-section-label {
  font-size: 0.7rem;
  color: var(--green-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 8px;
  margin-top: 20px;
}
.modal-body p {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.9;
}
.modal-skill-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.modal-skill-badge {
  font-size: 0.68rem;
  padding: 4px 12px;
  border: 1px solid rgba(0,255,159,0.3);
  border-radius: 999px;
  color: var(--green);
  background: var(--green-faint);
}

/* ============================
   GITHUB SECTION
============================= */
#github { background: var(--bg-dark); padding: 120px 0; }

.github-terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-card);
}
.gh-line {
  font-size: 0.8rem;
  color: var(--gray-light);
  margin-bottom: 8px;
  opacity: 0;
  animation: termLine 0.4s ease forwards;
}
.gh-line .prompt { color: var(--green); margin-right: 8px; }
.gh-line .success { color: var(--green); }
.gh-line .loading-text {
  color: var(--yellow);
  animation: loadingPulse 1s ease infinite;
}
@keyframes loadingPulse {
  0%, 100% { opacity: 0.5; }
  50%       { opacity: 1; }
}
@keyframes termLine {
  to { opacity: 1; }
}
.gh-line.delay-1 { animation-delay: 0.5s; }
.gh-line.delay-2 { animation-delay: 1.2s; }
.gh-line.delay-3 { animation-delay: 1.8s; }
.gh-line.delay-4 { animation-delay: 2.5s; }

.github-profile-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.gh-avatar {
  width: 72px;
  height: 72px;
  background: var(--green-faint);
  border: 2px solid var(--green-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--green);
  flex-shrink: 0;
}
.gh-identity h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}
.gh-identity h3 a { color: var(--white); }
.gh-identity h3 a:hover { color: var(--green); }
.gh-tagline {
  font-size: 0.73rem;
  color: var(--gray);
  margin-top: 4px;
  display: block;
}
.gh-profile-btn {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--white);
  background: var(--bg-card-2);
  transition: all var(--transition);
  flex-shrink: 0;
}
.gh-profile-btn:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-faint);
}

.repos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.repo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: all var(--transition);
}
.repo-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}
.repo-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.repo-icon { color: var(--green); font-size: 1rem; }
.repo-lang {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  color: var(--gray-light);
}
.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.lang-dot.python { background: #3572A5; }
.lang-dot.bash   { background: #89e051; }
.lang-dot.shell  { background: #89e051; }

.repo-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.repo-desc {
  font-size: 0.74rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 16px;
}
.repo-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.7rem;
  color: var(--gray);
}
.repo-meta span { display: flex; align-items: center; gap: 4px; }
.repo-badge {
  margin-left: auto;
  font-size: 0.6rem;
  padding: 2px 8px;
  background: var(--green-faint);
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 3px;
  color: var(--green-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================
   YOUTUBE SECTION
============================= */
#youtube { padding: 120px 0; }

.yt-intro-card {
  display: flex;
  gap: 28px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 48px;
  transition: all var(--transition);
}
.yt-intro-card:hover {
  border-color: var(--green);
  box-shadow: var(--shadow-glow);
}
.yt-channel-icon {
  width: 72px;
  height: 72px;
  background: var(--green-faint);
  border: 2px solid var(--green-dim);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--green);
  flex-shrink: 0;
}
.yt-channel-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.yt-channel-desc {
  font-size: 0.82rem;
  color: var(--gray-light);
  line-height: 1.8;
  margin-bottom: 14px;
}
.yt-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.yt-stats span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.71rem;
  color: var(--green-dim);
}

.yt-videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.yt-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s ease;
}
.yt-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 30px #00ff9f25, var(--shadow-card);
  transform: translateY(-5px) scale(1.01);
}
.yt-thumbnail {
  position: relative;
  height: 160px;
  background: linear-gradient(135deg, #0a1f1a 0%, #051a12 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.yt-thumb-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--green-dim);
}
.yt-thumb-content i { font-size: 2.5rem; }
.yt-thumb-topic {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green-dim);
}
.yt-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  font-size: 2.5rem;
  color: var(--green);
}
.yt-card:hover .yt-play-overlay { opacity: 1; }

.yt-card-body { padding: 20px; }
.yt-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.5;
}
.yt-desc {
  font-size: 0.74rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 12px;
}
.yt-tag {
  display: inline-block;
  font-size: 0.62rem;
  padding: 3px 10px;
  background: var(--green-faint);
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 999px;
  color: var(--green-dim);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ============================
   CONTACT SECTION
============================= */
#contact { background: var(--bg-dark); padding: 120px 0; }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact-terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.contact-lines { display: flex; flex-direction: column; gap: 6px; }
.contact-line {
  font-size: 0.8rem;
  opacity: 0;
  animation: termLine 0.4s ease forwards;
}
.contact-line.cl-1  { animation-delay: 0.2s; }
.contact-line.cl-2  { animation-delay: 0.7s; }
.contact-line.cl-3  { animation-delay: 1.2s; }
.contact-line.cl-4  { animation-delay: 1.5s; }
.contact-line.cl-5  { animation-delay: 1.8s; }
.contact-line.cl-6  { animation-delay: 2.1s; }
.contact-line.cl-7  { animation-delay: 2.4s; }
.contact-line.cl-8  { animation-delay: 2.7s; }
.contact-line.cl-9  { animation-delay: 3.0s; }

.c-prompt { color: var(--green); }
.c-output { color: var(--gray-light); }
.c-output.success { color: var(--green); }
.c-key    { color: var(--white); font-weight: 600; min-width: 70px; display: inline-block; }
.c-sep    { color: var(--gray); }
.c-val    { color: var(--green); }
.c-val:hover { color: var(--white); text-decoration: underline; }

.contact-cta-headline {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.3;
}
.contact-cta-text {
  font-size: 0.84rem;
  color: var(--gray-light);
  line-height: 1.9;
  margin-bottom: 32px;
}
.contact-cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.btn-contact { font-size: 0.78rem; }

.availability-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--green-faint);
  border: 1px solid rgba(0,255,159,0.2);
  border-radius: 999px;
  font-size: 0.72rem;
  color: var(--green-dim);
}
.avail-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green);
}

/* ============================
   FOOTER
============================= */
#footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--black);
}
.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
}
.footer-text {
  font-size: 0.72rem;
  color: var(--gray);
}
.footer-tagline {
  font-size: 0.7rem;
  color: var(--green-dim);
  letter-spacing: 0.1em;
}
.f-prompt { color: var(--green); }

/* ============================
   ANIMATIONS: GSAP-linked classes
============================= */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
}
.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
}
.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
}

/* ============================
   RESPONSIVE — TABLET (≤900px)
============================= */
@media (max-width: 900px) {
  .about-grid          { grid-template-columns: 1fr; }
  .edu-layout          { grid-template-columns: 1fr; }
  .projects-grid       { grid-template-columns: 1fr; }
  .repos-grid          { grid-template-columns: 1fr 1fr; }
  .yt-videos-grid      { grid-template-columns: 1fr 1fr; }
  .contact-layout      { grid-template-columns: 1fr; }
  .github-profile-header { flex-wrap: wrap; }
  .gh-profile-btn      { margin-left: 0; }
  .yt-intro-card       { flex-direction: column; text-align: center; }
}

/* ============================
   RESPONSIVE — MOBILE (≤600px)
============================= */
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  #navbar     { padding: 14px 20px; }

  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(2,5,5,0.97);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    z-index: 4999;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  section { padding: 80px 0; }

  .repos-grid     { grid-template-columns: 1fr; }
  .yt-videos-grid { grid-template-columns: 1fr; }
  .hero-stats     { gap: 12px; }
  .stat-card      { min-width: 120px; padding: 12px 16px; }
  #log-stream     { display: none; }
}