/* ============================================================
   Percy Flores — Portfolio Design System
   Dark Cyber-Professional Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── CSS Variables — Dark Mode (default) ── */
:root,
[data-theme="dark"] {
  --bg-primary:    #050914;
  --bg-secondary:  #0a1128;
  --bg-card:       #0d1630;
  --bg-glass:      rgba(13, 22, 48, 0.7);

  --accent-blue:   #3b82f6;
  --accent-cyan:   #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-green:  #10b981;
  --accent-orange: #f59e0b;

  --text-primary:  #f0f4ff;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;

  --border:        rgba(59, 130, 246, 0.15);
  --border-hover:  rgba(59, 130, 246, 0.4);
  --glow-blue:     0 0 40px rgba(59, 130, 246, 0.25);
  --glow-cyan:     0 0 40px rgba(6, 182, 212, 0.2);

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --font-main:  'Inter', sans-serif;
  --font-mono:  'JetBrains Mono', monospace;

  --nav-h: 68px;
  --section-pad: 120px 0;

  /* PDF viewer dark-mode: invert white paper to dark */
  --pdf-filter: invert(0.92) hue-rotate(180deg) brightness(0.95);
  --pdf-bg: #0d1630;
  --noise-opacity: 0.18;
  --grid-color: rgba(59,130,246,0.04);
}

/* ── Light Mode ── */
[data-theme="light"] {
  --bg-primary:    #f8faff;
  --bg-secondary:  #eef2ff;
  --bg-card:       #ffffff;
  --bg-glass:      rgba(238, 242, 255, 0.85);

  --accent-blue:   #2563eb;
  --accent-cyan:   #0891b2;
  --accent-purple: #7c3aed;
  --accent-green:  #059669;
  --accent-orange: #d97706;

  --text-primary:  #0f172a;
  --text-secondary:#334155;
  --text-muted:    #64748b;

  --border:        rgba(37, 99, 235, 0.14);
  --border-hover:  rgba(37, 99, 235, 0.4);
  --glow-blue:     0 4px 24px rgba(37, 99, 235, 0.15);
  --shadow-card:   0 8px 30px rgba(8, 145, 178, 0.08);

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --font-main:  'Inter', sans-serif;
  --font-mono:  'JetBrains Mono', monospace;

  --nav-h: 68px;
  --section-pad: 120px 0;

  /* PDF viewer in light mode: no filter needed — PDFs are already white */
  --pdf-filter: none;
  --pdf-bg: #f1f5f9;
  --noise-opacity: 0.06;
  --grid-color: rgba(37,99,235,0.04);
}

/* Light mode body overrides */
[data-theme="light"] body { color-scheme: light; }
[data-theme="light"] .grid-bg {
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
}
[data-theme="light"] body::before { opacity: var(--noise-opacity); }
[data-theme="light"] .orb-1 {
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
}
[data-theme="light"] .orb-2 {
  background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, transparent 70%);
}
[data-theme="light"] .orb-3 {
  background: radial-gradient(circle, rgba(8,145,178,0.05) 0%, transparent 70%);
}
[data-theme="light"] #navbar.scrolled {
  background: rgba(248, 250, 255, 0.9);
  box-shadow: 0 1px 0 var(--border), 0 4px 20px rgba(0,0,0,0.06);
}
[data-theme="light"] .hero-name-line1 {
  background: linear-gradient(135deg, #0f172a 0%, #334155 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
[data-theme="light"] .terminal-body { color: #334155; }
[data-theme="light"] .t-out { color: #64748b; }
[data-theme="light"] .modal { background: #fff; }
[data-theme="light"] .mobile-nav { background: rgba(248,250,255,0.97); }
[data-theme="light"] .doc-embed-wrap { background: #e2e8f0; }
[data-theme="light"] .doc-external-placeholder { background: rgba(0,0,0,0.02); }
[data-theme="light"] .contact-inner::before {
  background: radial-gradient(ellipse, rgba(37,99,235,0.08) 0%, transparent 70%);
}

/* PDF iframe filter (dark: inverted, light: normal) */
.doc-embed, .pdf-viewer-frame { filter: var(--pdf-filter, none); }
.doc-embed-wrap, .pdf-viewer-frame { background: var(--pdf-bg); }


/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth; font-size: 16px;
  transition: background 0.3s, color 0.3s;
}
body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ── Noise Overlay ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0; opacity: 0.18;
}

/* ── Grid BG ── */
.grid-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ── Orbs ── */
.orb {
  position: fixed; border-radius: 50%; pointer-events: none; z-index: 0;
  filter: blur(80px); animation: orb-float 8s ease-in-out infinite;
}
.orb-1 { width: 600px; height: 600px; top: -200px; left: -200px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%); }
.orb-2 { width: 500px; height: 500px; bottom: -150px; right: -150px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  animation-delay: -4s; }
.orb-3 { width: 400px; height: 400px; top: 40%; left: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, transparent 70%);
  animation-delay: -2s; }

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -30px) scale(1.05); }
  66%       { transform: translate(-20px, 20px) scale(0.97); }
}

/* ── Container ── */
.container {
  position: relative; z-index: 1;
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
}

/* ── Section Titles ── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent-cyan); margin-bottom: 12px;
  display: flex; align-items: center; gap: 12px;
}
.section-label::after {
  content: ''; display: block; height: 1px; width: 48px;
  background: var(--accent-cyan); opacity: 0.5;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section-subtitle {
  font-size: 1.05rem; color: var(--text-secondary); max-width: 560px;
  margin-bottom: 60px; line-height: 1.7;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(.16,1,.3,1), transform 0.7s cubic-bezier(.16,1,.3,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ─────────────────────────────────────────────────────────────
   NAV
───────────────────────────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background 0.3s, box-shadow 0.3s, backdrop-filter 0.3s;
}
#navbar.scrolled {
  background: rgba(5, 9, 20, 0.85);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
}
.nav-logo {
  font-family: var(--font-mono); font-size: 1.05rem; font-weight: 700;
  color: var(--accent-blue);
  display: flex; align-items: center; gap: 8px;
}
.nav-logo-bracket { color: var(--accent-purple); }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--accent-blue);
  transform: scaleX(0); transition: transform 0.25s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  padding: 8px 20px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  font-size: 0.85rem; font-weight: 600; color: #fff !important;
  transition: opacity 0.2s, transform 0.2s !important;
}
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px) !important; }
.nav-cta::after { display: none !important; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-primary); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Theme Toggle */
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent; cursor: pointer;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent-blue);
  background: rgba(59,130,246,0.1);
  transform: rotate(20deg);
}
.theme-icon { font-size: 1.05rem; line-height: 1; user-select: none; }
[data-theme="light"] .theme-toggle {
  border-color: var(--border);
  background: rgba(37,99,235,0.05);
}
[data-theme="light"] .theme-toggle:hover {
  background: rgba(37,99,235,0.12);
}

/* Mobile Nav */
.mobile-nav {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: rgba(5, 9, 20, 0.97); backdrop-filter: blur(20px);
  flex-direction: column; padding: 24px;
  border-top: 1px solid var(--border); z-index: 99;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 14px 0; font-size: 1rem; font-weight: 500;
  color: var(--text-secondary); border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.mobile-nav a:hover { color: var(--text-primary); }

/* ─────────────────────────────────────────────────────────────
   HERO
───────────────────────────────────────────────────────────── */
#hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.hero-content { padding: 80px 0; position: relative; z-index: 10; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 100px;
  border: 1px solid var(--border-hover);
  background: rgba(59,130,246,0.08);
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--accent-cyan); margin-bottom: 28px;
}
.hero-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.8); }
}
.hero-name {
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  font-weight: 900; line-height: 1; letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero-name-line1 {
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-name-line2 {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-tagline {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary); margin-bottom: 12px; font-weight: 400;
}
.hero-typewriter {
  font-family: var(--font-mono); font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--accent-cyan); margin-bottom: 40px; min-height: 1.6em;
}
.hero-typewriter .cursor {
  display: inline-block; width: 2px; height: 1em;
  background: var(--accent-cyan); margin-left: 2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.btn-primary {
  padding: 14px 32px; border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  font-weight: 600; font-size: 0.95rem; color: #fff;
  box-shadow: 0 8px 32px rgba(59,130,246,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(59,130,246,0.45); }
.btn-secondary {
  padding: 14px 32px; border-radius: var(--radius-md);
  border: 1px solid var(--border-hover);
  background: transparent;
  font-weight: 600; font-size: 0.95rem; color: var(--text-primary);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover {
  border-color: var(--accent-blue);
  background: rgba(59,130,246,0.08);
  transform: translateY(-2px);
}
.hero-stats {
  display: flex; gap: 40px; flex-wrap: wrap; padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat { display: flex; flex-direction: column; }
.stat-value {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 2px; }

/* Hero Visual Composition */
.hero-visuals {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 32px; width: 100%; min-height: 500px;
}
.hero-photo-wrap {
  width: 100%; max-width: 240px; /* appropriately sized for a circular avatar */
  position: relative; z-index: 1;
}
.hero-photo {
  width: 100%; height: auto; border-radius: 50%;
  box-shadow: 0 16px 32px rgba(0,0,0,0.4);
  border: 4px solid var(--border);
  object-fit: cover; aspect-ratio: 1/1;
}
.hero-terminal {
  position: relative;
  width: min(440px, 100%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--glow-blue), 0 20px 60px rgba(0,0,0,0.5);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
.terminal-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.red   { background: #ff5f57; }
.terminal-dot.yellow{ background: #ffbd2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title {
  flex: 1; text-align: center; font-family: var(--font-mono);
  font-size: 0.72rem; color: var(--text-muted);
}
.terminal-body {
  padding: 20px; font-family: var(--font-mono); font-size: 0.78rem;
  line-height: 1.9; color: var(--text-secondary);
}
.t-prompt { color: var(--accent-green); }
.t-cmd    { color: var(--text-primary); }
.t-out    { color: var(--text-muted); }
.t-high   { color: var(--accent-cyan); }
.t-warn   { color: var(--accent-orange); }

/* ─────────────────────────────────────────────────────────────
   ABOUT
───────────────────────────────────────────────────────────── */
#about { padding: var(--section-pad); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
}
.about-text p {
  color: var(--text-secondary); line-height: 1.8; margin-bottom: 20px;
}
.about-text p strong { color: var(--text-primary); }
.about-highlight {
  margin-top: 32px; padding: 24px; border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(59,130,246,0.05);
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--accent-cyan); line-height: 1.7;
}
.about-highlight blockquote::before { content: '"'; font-size: 1.5rem; line-height: 0; vertical-align: -0.3em; margin-right: 4px; }
.about-photo-wrap img {
  width: 100%; height: auto; border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--glow-blue), 0 20px 40px rgba(0,0,0,0.4);
  object-fit: cover; aspect-ratio: 1/1;
}
.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; grid-column: 1 / -1; margin-top: 20px; }
.about-card {
  padding: 20px 24px; border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex; align-items: flex-start; gap: 16px;
  transition: border-color 0.25s, transform 0.25s;
}
.about-card:hover { border-color: var(--border-hover); transform: translateX(4px); }
.about-card-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; flex-shrink: 0;
}
.about-card-text h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.about-card-text p  { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; }

/* ─────────────────────────────────────────────────────────────
   SKILLS
───────────────────────────────────────────────────────────── */
#skills { padding: var(--section-pad); }
.skills-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}
.skill-category {
  padding: 28px; border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.25s, box-shadow 0.25s;
  display: flex; flex-direction: column;
}
.skill-category:hover {
  border-color: var(--border-hover);
  box-shadow: var(--glow-blue);
}
.skill-cat-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 24px;
}
.skill-cat-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.skill-cat-title { font-size: 0.95rem; font-weight: 700; }
.skill-bar-wrap { margin-bottom: 14px; }
.skill-bar-header {
  display: flex; justify-content: space-between; margin-bottom: 6px;
}
.skill-bar-name { font-size: 0.82rem; color: var(--text-secondary); }
.skill-bar-pct  { font-size: 0.78rem; font-family: var(--font-mono); color: var(--accent-cyan); }
.skill-bar-track {
  height: 5px; border-radius: 100px;
  background: rgba(255,255,255,0.06); overflow: hidden;
}
.skill-bar-fill {
  height: 100%; border-radius: 100px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  width: 0; transition: width 1.2s cubic-bezier(.16,1,.3,1);
}

/* Tool Pills */
.tool-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 24px; }
.tool-pill {
  padding: 6px 14px; border-radius: 100px;
  border: 1px solid var(--border);
  background: rgba(59,130,246,0.06);
  font-family: var(--font-mono); font-size: 0.76rem;
  color: var(--text-secondary);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.tool-pill:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
  background: rgba(59,130,246,0.12);
}

/* ─────────────────────────────────────────────────────────────
   PROJECTS
───────────────────────────────────────────────────────────── */
#projects { padding: var(--section-pad); }
.projects-filter {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px; border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  font-size: 0.82rem; font-weight: 500; color: var(--text-secondary);
  cursor: pointer; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent-blue);
  color: var(--text-primary);
  background: rgba(59,130,246,0.1);
}
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.project-card {
  position: relative; border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden; cursor: pointer;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  display: flex; flex-direction: column;
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--glow-blue), 0 20px 60px rgba(0,0,0,0.4);
}
.project-card-top {
  padding: 28px 28px 0;
  display: flex; align-items: flex-start; justify-content: space-between;
}
.project-icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}
.project-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  padding: 4px 10px; border-radius: 100px;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.05em;
}
.badge-cyber    { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-network  { background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.25); }
.badge-fullstack{ background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }
.badge-forensics{ background: rgba(245,158,11,0.12); color: #fbbf24; border: 1px solid rgba(245,158,11,0.25); }
.badge-ai       { background: rgba(139,92,246,0.12); color: #a78bfa; border: 1px solid rgba(139,92,246,0.25); }
.project-card-body { padding: 20px 28px 28px; }
.project-card-course {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--text-muted); margin-bottom: 6px; letter-spacing: 0.05em;
}
.project-card-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.project-card-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 20px; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.project-tag {
  padding: 4px 12px; border-radius: 100px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-secondary);
  font-weight: 500;
}
.project-card-footer {
  margin-top: auto; padding: 20px 28px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: flex-end;
}
.project-expand-hint {
  font-size: 0.78rem; font-weight: 600; color: var(--accent-cyan);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 24px;
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.2);
  transition: all 0.25s ease;
}
.project-card:hover .project-expand-hint {
  background: var(--accent-cyan);
  color: #fff;
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
  transform: translateY(-2px);
}
.project-expand-hint svg { transition: transform 0.25s ease; }
.project-card:hover .project-expand-hint svg { transform: translateX(3px); }

/* ── Project Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  width: 100%; max-width: 680px; max-height: 85vh; overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-xl);
  padding: 40px;
  transform: scale(0.95) translateY(20px);
  transition: transform 0.3s cubic-bezier(.16,1,.3,1);
  box-shadow: var(--glow-blue), 0 40px 80px rgba(0,0,0,0.6);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 28px; }
.modal-close {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  background: transparent; color: var(--text-secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
  transition: border-color 0.2s, color 0.2s;
}
.modal-close:hover { border-color: var(--accent-blue); color: var(--text-primary); }
.modal h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; }
.modal-course { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); }
.modal-section { margin-bottom: 24px; }
.modal-section h3 { font-size: 0.85rem; font-weight: 700; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 12px; }
.modal-section p  { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.modal-section ul { padding-left: 0; }
.modal-section ul li {
  font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6;
  padding: 6px 0 6px 20px; position: relative; border-bottom: 1px solid rgba(255,255,255,0.03);
}
.modal-section ul li::before {
  content: '→'; position: absolute; left: 0; color: var(--accent-blue);
}
.modal-tools { display: flex; flex-wrap: wrap; gap: 8px; }
.modal-tool {
  padding: 5px 14px; border-radius: 100px;
  border: 1px solid var(--border);
  background: rgba(59,130,246,0.08);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-cyan);
}

/* ─────────────────────────────────────────────────────────────
   EDUCATION
───────────────────────────────────────────────────────────── */
#education { padding: var(--section-pad); }
.education-timeline { position: relative; padding-left: 40px; }
.education-timeline::before {
  content: ''; position: absolute; left: 8px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple), transparent);
}
.edu-item {
  position: relative; margin-bottom: 48px;
  padding: 28px; border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.edu-item:hover { border-color: var(--border-hover); box-shadow: var(--glow-blue); }
.edu-dot {
  position: absolute; left: -48px; top: 32px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.2), 0 0 16px rgba(59,130,246,0.4);
}
.edu-date {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--text-muted); margin-bottom: 8px;
}
.edu-school { font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.edu-degree { font-size: 0.9rem; color: var(--accent-blue); font-weight: 600; margin-bottom: 16px; }
.edu-courses { display: flex; flex-direction: column; gap: 8px; }
.edu-course {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03);
}
.edu-course-code {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--accent-purple); font-weight: 600; min-width: 60px;
}
.edu-course-name { font-size: 0.83rem; color: var(--text-secondary); }

/* ─────────────────────────────────────────────────────────────
   CONTACT
───────────────────────────────────────────────────────────── */
#contact {
  padding: var(--section-pad);
  position: relative;
}
.contact-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 72px 80px;
  text-align: center;
  position: relative; overflow: hidden;
}
.contact-inner::before {
  content: '';
  position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(59,130,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.contact-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 16px; }
.contact-sub   { font-size: 1rem; color: var(--text-secondary); max-width: 480px; margin: 0 auto 40px; line-height: 1.7; }
.contact-links { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.contact-link {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px; border-radius: var(--radius-md);
  border: 1px solid var(--border-hover);
  font-size: 0.9rem; font-weight: 600; color: var(--text-primary);
  transition: all 0.25s;
}
.contact-link:hover {
  border-color: var(--accent-blue);
  background: rgba(59,130,246,0.1);
  transform: translateY(-2px);
  box-shadow: var(--glow-blue);
}
.contact-link svg { color: var(--accent-blue); }
.contact-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-color: transparent !important;
  box-shadow: 0 8px 32px rgba(59,130,246,0.35);
}
.contact-primary:hover {
  box-shadow: 0 12px 48px rgba(59,130,246,0.5) !important;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}
.contact-disclaimer {
  font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono);
}

/* ─────────────────────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────────────────────── */
#footer {
  padding: 32px 0; border-top: 1px solid var(--border);
  text-align: center;
}
.footer-text { font-size: 0.82rem; color: var(--text-muted); font-family: var(--font-mono); }
.footer-text span { color: var(--accent-blue); }

/* ─────────────────────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-photo-wrap { max-width: 300px; margin: 0 auto; }
  .hero-terminal { display: none; }
  .hero-content  { padding: 60px 0 20px; }
}
@media (max-width: 768px) {
  :root { --section-pad: 80px 0; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-cards { grid-template-columns: 1fr; grid-column: auto; }
  .contact-inner { padding: 48px 28px; }
  .education-timeline { padding-left: 28px; }
  .project-card-top { flex-wrap: wrap; gap: 12px; }
  .modal { padding: 28px 24px; }
  .hero-stats { gap: 24px; }
}
@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
  .hero-actions  { flex-direction: column; }
  .btn-primary, .btn-secondary { justify-content: center; }
}

/* ── Utility ── */
.text-accent-blue   { color: var(--accent-blue); }
.text-accent-cyan   { color: var(--accent-cyan); }
.text-accent-purple { color: var(--accent-purple); }
.text-accent-green  { color: var(--accent-green); }

/* ─────────────────────────────────────────────────────────────
   MODAL FILE LINKS (Verify the Work)
───────────────────────────────────────────────────────────── */
.modal-file-links { display: flex; flex-direction: column; gap: 10px; }
.modal-file-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(59,130,246,0.04);
  flex-wrap: wrap;
}
.modal-file-icon { font-size: 1.1rem; flex-shrink: 0; }
.modal-file-name { flex: 1; font-size: 0.84rem; color: var(--text-secondary); min-width: 160px; }
.modal-file-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.modal-file-btn {
  padding: 6px 14px; border-radius: var(--radius-sm);
  font-size: 0.78rem; font-weight: 600; cursor: pointer;
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue); background: rgba(59,130,246,0.08);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  display: inline-flex; align-items: center;
}
.modal-file-btn:hover { background: var(--accent-blue); color: #fff; }

/* ─────────────────────────────────────────────────────────────
   DOCUMENTS & EVIDENCE SECTION
───────────────────────────────────────────────────────────── */
#documents { padding: var(--section-pad); }

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
  gap: 28px;
}

.doc-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
  display: flex; flex-direction: column;
}
.doc-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--glow-blue);
}

.doc-card-header {
  display: flex; flex-direction: column; align-items: flex-start;
  gap: 16px; padding: 20px 24px;
  flex-grow: 1;
}
.doc-card-meta { flex: 1; min-width: 180px; }
.doc-badge {
  display: inline-block;
  padding: 3px 10px; border-radius: 100px;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.doc-card-title {
  font-size: 0.95rem; font-weight: 700;
  color: var(--text-primary); margin-bottom: 4px;
}
.doc-card-sub {
  font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55;
}
.doc-card-actions {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-start;
  flex-shrink: 0; margin-top: auto;
}
.doc-btn-view {
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 0.8rem; font-weight: 600; cursor: pointer;
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(59,130,246,0.1);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, transform 0.2s;
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 6px;
}
.doc-btn-view:hover { background: var(--accent-blue); color: #fff; transform: translateY(-1px); }
.doc-btn-dl {
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 0.8rem; font-weight: 600; cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
  transition: all 0.25s ease;
  display: inline-flex; align-items: center;
}
.doc-btn-dl:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

/* Embedded PDF iframe */
.doc-embed-wrap {
  border-top: 1px solid var(--border);
  background: #111827;
  height: 420px;
  position: relative;
}
.doc-embed {
  width: 100%; height: 100%;
  border: none;
  display: block;
}

/* External link placeholder (Google Doc / PKT) */
.doc-external-placeholder {
  border-top: 1px solid var(--border);
  padding: 36px 24px;
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; text-align: center; gap: 12px;
  background: rgba(255,255,255,0.02);
  min-height: 140px;
}
.doc-external-placeholder span { font-size: 2rem; }
.doc-external-placeholder p {
  font-size: 0.82rem; color: var(--text-muted); max-width: 360px; line-height: 1.6;
}

/* ─────────────────────────────────────────────────────────────
   PDF FULLSCREEN VIEWER
───────────────────────────────────────────────────────────── */
.pdf-viewer-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.92); backdrop-filter: blur(10px);
  display: flex; align-items: stretch; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.pdf-viewer-overlay.open { opacity: 1; visibility: visible; }
.pdf-viewer-inner {
  display: flex; flex-direction: column;
  width: 100%; max-width: 1100px;
  margin: 20px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-hover);
  box-shadow: var(--glow-blue), 0 40px 100px rgba(0,0,0,0.7);
}
.pdf-viewer-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.pdf-viewer-title {
  font-family: var(--font-mono); font-size: 0.82rem;
  color: var(--accent-cyan); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pdf-viewer-close {
  padding: 6px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent; color: var(--text-secondary);
  font-size: 0.82rem; font-weight: 600; cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  white-space: nowrap; flex-shrink: 0;
}
.pdf-viewer-close:hover {
  border-color: #ef4444; color: #ef4444;
  background: rgba(239,68,68,0.08);
}
.pdf-viewer-frame {
  flex: 1; border: none; width: 100%;
  background: #fff;
}

/* Docs grid responsive */
@media (max-width: 768px) {
  .docs-grid { grid-template-columns: 1fr; }
  .doc-card-header { flex-direction: column; }
  .doc-embed-wrap { height: 300px; }
  .pdf-viewer-inner { margin: 8px; border-radius: var(--radius-md); }
}


/* Enforce 100% unselectable text globally as requested */
* {
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  user-select: none !important;
}