/* ============================================================
   style.css — ahmedkhalifa.dev
   ============================================================ */

/* 1. RESET & BOX MODEL
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 2. CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Light mode (default) */
  --bg-primary:    #EFE3CA;
  --bg-secondary:  #E5D4B0;
  --bg-card:       rgba(23, 12, 121, 0.04);

  --accent-blue:   #170C79;
  --accent-cyan:   #56B6C6;
  --accent-purple: #8ACBD0;
  --accent-purple-light: #9BD8DE;
  --matrix-green:  #170C79;

  --text-primary:   #170C79;
  --text-secondary: #3B2D90;
  --text-muted:     #7369B0;

  --border-subtle: rgba(23, 12, 121, 0.14);

  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --max-width: 1160px;
  --nav-height: 72px;

  --glass-bg:     rgba(23, 12, 121, 0.04);
  --glass-border: rgba(23, 12, 121, 0.14);
  --glass-blur:   16px;
  --glass-shadow: 0 8px 32px rgba(23, 12, 121, 0.10);

  /* Semantic vars — override per theme */
  --nav-scrolled-bg: rgba(239, 227, 202, 0.92);
  --nav-mobile-bg:   rgba(239, 227, 202, 0.97);
  --modal-overlay:   rgba(23, 12, 121, 0.45);
  --modal-surface:   #F5EDD8;
  --modal-border:    rgba(23, 12, 121, 0.14);
  --watermark-color: rgba(23, 12, 121, 0.05);
  --hint-bg:         rgba(239, 227, 202, 0.96);
  --glass-inset:     inset 0 1px 0 rgba(255, 255, 255, 0.55);
  --hero-grad-1:     rgba(86, 182, 198, 0.14);
  --hero-grad-2:     rgba(138, 203, 208, 0.09);

  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   500ms cubic-bezier(0.4, 0, 0.2, 1);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --space-1:  8px;
  --space-2:  16px;
  --space-3:  24px;
  --space-4:  32px;
  --space-5:  40px;
  --space-6:  48px;
  --space-7:  56px;
  --space-8:  64px;
  --space-12: 96px;
  --space-16: 128px;
}

/* Dark mode overrides */
[data-theme="dark"] {
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #0f0f1a;
  --bg-card:       rgba(255, 255, 255, 0.03);

  --accent-blue:   #5fa8f5;
  --accent-cyan:   #00d4ff;
  --accent-purple: #b060f0;
  --accent-purple-light: #d090ff;
  --matrix-green:  #00ff88;

  --text-primary:   #e8e8f0;
  --text-secondary: #a0a8cc;
  --text-muted:     #6870aa;

  --border-subtle: rgba(255, 255, 255, 0.07);

  --glass-bg:     rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);

  --nav-scrolled-bg: rgba(10, 10, 15, 0.88);
  --nav-mobile-bg:   rgba(10, 10, 15, 0.97);
  --modal-overlay:   rgba(5, 5, 10, 0.88);
  --modal-surface:   #10101a;
  --modal-border:    rgba(255, 255, 255, 0.09);
  --watermark-color: rgba(255, 255, 255, 0.028);
  --hint-bg:         rgba(10, 10, 15, 0.9);
  --glass-inset:     inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --hero-grad-1:     rgba(95, 168, 245, 0.07);
  --hero-grad-2:     rgba(0, 212, 255, 0.04);
}

/* 3. BASE TYPOGRAPHY
   ============================================================ */
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
  transition: background-color 0.35s ease, color 0.35s ease;
}

h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 600;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

img, svg { display: block; }

button {
  font-family: var(--font-mono);
  cursor: none;
  border: none;
  background: none;
}

/* 4. UTILITIES
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
}

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.section-number {
  font-size: 0.75rem;
  color: var(--accent-blue);
  opacity: 0.5;
  letter-spacing: 0.1em;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-subtle) 0%, transparent 100%);
}

.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow), var(--glass-inset);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* Blinking cursor */
.blink {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--accent-blue);
}

/* 5. CUSTOM CURSOR
   ============================================================ */
#cursor-ring {
  position: fixed;
  width: 32px; height: 32px;
  border: 1.5px solid var(--accent-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  transition: width var(--transition-fast),
              height var(--transition-fast),
              border-color var(--transition-fast),
              opacity var(--transition-fast);
  transform: translate(-50%, -50%);
}

#cursor-dot {
  position: fixed;
  width: 4px; height: 4px;
  background: var(--accent-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
}

body.cursor--hover #cursor-ring {
  width: 48px; height: 48px;
  border-color: var(--accent-cyan);
}

@media (pointer: coarse) {
  body { cursor: auto; }
  button { cursor: pointer; }
  a { cursor: pointer; }
  #cursor-ring, #cursor-dot { display: none; }
}

/* 6. NAVIGATION
   ============================================================ */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  z-index: 100;
  transition: height var(--transition-normal),
              background var(--transition-normal),
              border-bottom var(--transition-normal),
              backdrop-filter var(--transition-normal);
}

#nav.nav--scrolled {
  height: 52px;
  background: var(--nav-scrolled-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 101;
}

.logo-img {
  height: 58px;
  width: auto;
  display: block;
  flex-shrink: 0;
  transition: filter var(--transition-fast), transform var(--transition-fast);
}

.nav-logo:hover .logo-img {
  filter: brightness(1.08) drop-shadow(0 0 8px rgba(95, 168, 245, 0.45));
  transform: scale(1.05);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
  cursor: none;
}

.theme-toggle:hover {
  color: var(--accent-blue);
  background: var(--border-subtle);
}

.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent-blue);
  transition: width var(--transition-normal);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-blue);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 101;
  cursor: none;
}

.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  transform-origin: center;
}

.hamburger.hamburger--open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger.hamburger--open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.hamburger--open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* 7. HERO
   ============================================================ */
#hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--nav-height) var(--space-6) var(--space-8);
  max-width: 100%;
  margin: 0;
  background:
    radial-gradient(ellipse 70% 60% at 15% 50%, var(--hero-grad-1) 0%, transparent 100%),
    radial-gradient(ellipse 50% 40% at 85% 60%, var(--hero-grad-2) 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
}

.hero-right {
  opacity: 0;
  animation: slideInRight 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.45s forwards;
}

.name-first { color: var(--text-primary); }
.name-last  { color: var(--accent-blue); }

.hero-eyebrow {
  font-size: 0.8rem;
  color: var(--accent-blue);
  opacity: 0;
  margin-bottom: var(--space-2);
  letter-spacing: 0.05em;
  animation: fadeUp 0.6s ease 0.2s forwards;
}

.hero-name {
  position: relative;
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.6rem, 6.5vw, 5.2rem);
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  line-height: 1.1;
  margin-bottom: var(--space-3);
  opacity: 0;
  animation: textReveal 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.38s forwards;
}


.hero-role {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: var(--space-3);
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  color: var(--text-secondary);
  min-height: 1.8em;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.72s forwards;
}

.typewriter-prefix {
  color: var(--text-muted);
  white-space: nowrap;
}

#typewriter {
  color: var(--accent-cyan);
  font-weight: 600;
}

.cursor-blink {
  color: var(--accent-cyan);
  animation: blink 0.9s step-end infinite;
  font-weight: 400;
}

.hero-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: fadeUp 0.6s ease 0.9s forwards;
}

.hero-location .icon {
  width: 14px; height: 14px;
  color: var(--accent-blue);
  opacity: 0.7;
  flex-shrink: 0;
}

.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent-blue);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.hero-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-4);
  opacity: 0;
  animation: fadeUp 0.6s ease 0.95s forwards;
}

.hero-cta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s ease 1.1s forwards;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
  opacity: 0;
  animation: fadeUp 0.6s ease 1.28s forwards;
}

.social-icon {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.social-icon:hover {
  color: var(--accent-blue);
  transform: translateY(-2px);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  display: block;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-blue);
  color: var(--bg-primary);
  border: 1px solid var(--accent-blue);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(23, 12, 121, 0.25);
}
[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 0 20px rgba(95, 168, 245, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

/* Code card — always dark (IDE aesthetic) */
.code-card {
  overflow: hidden;
  --glass-bg: rgba(255, 255, 255, 0.025);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-muted: #6870aa;
  background: #0d0d18;
}

.code-card-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-card-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-filename {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.code-body {
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 2;
  overflow-x: auto;
  margin: 0;
}

.code-body code { display: block; }

.c-comment { color: #6272a4; }
.c-keyword  { color: #ff79c6; }
.c-var      { color: var(--text-primary); }
.c-op       { color: #ff79c6; }
.c-prop     { color: #50fa7b; }
.c-string   { color: #f1fa8c; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: fadeUp 1s ease 1s both;
}

.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
  animation: scrollDown 1.8s ease-in-out infinite;
}

/* 8. ABOUT — editorial
   ============================================================ */

/* Billboard — no card, flows with page */
.about-billboard {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-height: 460px;
  margin-bottom: var(--space-12);
}

.about-watermark {
  position: absolute;
  top: 50%;
  left: -2%;
  transform: translateY(-50%);
  font-size: clamp(5rem, 14vw, 11rem);
  font-family: 'Cinzel', serif;
  font-weight: 900;
  color: var(--watermark-color);
  letter-spacing: 0.08em;
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
  z-index: 0;
  line-height: 1;
}

.about-billboard-text {
  position: relative;
  z-index: 1;
  padding: var(--space-8);
}

.about-eyebrow {
  font-size: 0.75rem;
  color: var(--accent-blue);
  letter-spacing: 0.12em;
  margin-bottom: var(--space-3);
}

.about-display {
  display: flex;
  flex-direction: column;
  line-height: 0.88;
  margin-bottom: var(--space-4);
  font-family: 'Playfair Display', serif;
}

.abt-im {
  font-size: clamp(0.7rem, 1.2vw, 0.9rem);
  color: var(--accent-blue);
  letter-spacing: 0.25em;
  font-weight: 400;
  font-family: var(--font-mono);
  margin-bottom: var(--space-2);
  opacity: 0.8;
}

.abt-name-1 {
  font-size: clamp(1.8rem, 4.5vw, 3.8rem);
  color: var(--text-primary);
  font-weight: 900;
  letter-spacing: 0.01em;
}

.abt-name-2 {
  font-size: clamp(1.8rem, 4.5vw, 3.8rem);
  color: var(--accent-blue);
  font-weight: 900;
  letter-spacing: 0.04em;
}

.about-tagline {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.about-billboard-photo {
  position: relative;
  height: 100%;
  min-height: 460px;
  overflow: hidden;
}

.about-billboard-photo::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 55%;
  background: linear-gradient(90deg, var(--bg-primary) 0%, transparent 100%);
  z-index: 1;
}

.about-billboard-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, var(--bg-primary) 0%, transparent 18%, transparent 80%, var(--bg-primary) 100%),
    linear-gradient(270deg, var(--bg-primary) 0%, transparent 30%);
  z-index: 1;
}

.about-billboard-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

/* Content row: terminal + bio */
.about-content-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

/* Stats — modern cards */
.about-stats {
  display: flex;
  gap: var(--space-3);
}

.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-3) var(--space-2);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-normal), transform var(--transition-fast);
}

.stat::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.stat.counted::after {
  transform: scaleX(1);
}

.stat:hover {
  border-color: rgba(95, 168, 245, 0.3);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent-blue);
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.3;
}

/* Terminals always use dark background regardless of theme */
.terminal-window,
.contact-terminal {
  --glass-bg:     rgba(255, 255, 255, 0.025);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --glass-inset:  inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --text-primary:   #e8e8f0;
  --text-secondary: #a0a8cc;
  --text-muted:     #6870aa;
  --border-subtle:  rgba(255, 255, 255, 0.07);
  background: rgba(10, 10, 20, 0.9);
}

.terminal-window {
  overflow: hidden;
  position: relative;
}

.terminal-window::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), transparent);
  z-index: 1;
}

/* CRT scanline */
.terminal-window::after {
  content: '';
  position: absolute;
  top: -100%; left: 0;
  right: 0; height: 40%;
  background: linear-gradient(transparent, rgba(95, 168, 245, 0.03), transparent);
  animation: scanline 8s linear infinite;
  pointer-events: none;
  z-index: 2;
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--glass-border);
}

.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-red    { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green  { background: #27c93f; }

.terminal-title {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 4px;
  letter-spacing: 0.03em;
}

.terminal-body {
  padding: 20px;
  font-size: 0.82rem;
  line-height: 1.9;
  min-height: 260px;
  position: relative;
  z-index: 3;
}

.terminal-line {
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal-line.input {
  color: var(--accent-blue);
}

.terminal-line.input::before {
  content: 'ahmed@ahmedkhalifa.dev:~$ ';
  color: var(--text-muted);
  opacity: 0.7;
}

.terminal-line.output {
  color: var(--text-secondary);
  padding-left: 2px;
}

.terminal-line.blank {
  height: 0.5em;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: var(--space-3);
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}

.stat {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent-blue);
  line-height: 1;
  min-width: 2.5ch;
  text-align: right;
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* 9. SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.skill-domain {
  padding: var(--space-4);
  position: relative;
  overflow: hidden;
}

.skill-domain::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

[data-domain="mobile"]::before   { background: linear-gradient(90deg, var(--accent-blue), transparent); }
[data-domain="devops"]::before   { background: linear-gradient(90deg, var(--accent-cyan), transparent); }
[data-domain="security"]::before { background: linear-gradient(90deg, var(--accent-purple), transparent); }
[data-domain="cs"]::before       { background: linear-gradient(90deg, #ff9966, transparent); }

.skill-domain h3 {
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: 8px;
}

[data-domain="mobile"]   h3 { color: var(--accent-blue); }
[data-domain="devops"]   h3 { color: var(--accent-cyan); }
[data-domain="security"] h3 { color: var(--accent-purple-light); }
[data-domain="cs"]       h3 { color: #ff9966; }

.domain-icon {
  font-size: 1rem;
  opacity: 0.8;
}

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

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  opacity: 0;
  transform: scale(0.85) translateY(6px);
}

.skill-badge.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

[data-domain="mobile"]   .skill-badge {
  background: rgba(95, 168, 245, 0.06);
  color: var(--accent-blue);
  border-color: rgba(95, 168, 245, 0.18);
}
[data-domain="mobile"]   .skill-badge:hover {
  background: rgba(95, 168, 245, 0.14);
  border-color: rgba(95, 168, 245, 0.5);
  box-shadow: 0 0 12px rgba(95, 168, 245, 0.2);
  transform: translateY(-2px);
}

[data-domain="devops"]   .skill-badge {
  background: rgba(0, 212, 255, 0.06);
  color: var(--accent-cyan);
  border-color: rgba(0, 212, 255, 0.18);
}
[data-domain="devops"]   .skill-badge:hover {
  background: rgba(0, 212, 255, 0.14);
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
  transform: translateY(-2px);
}

[data-domain="security"] .skill-badge {
  background: rgba(176, 96, 240, 0.06);
  color: var(--accent-purple-light);
  border-color: rgba(176, 96, 240, 0.18);
}
[data-domain="security"] .skill-badge:hover {
  background: rgba(176, 96, 240, 0.14);
  border-color: rgba(176, 96, 240, 0.5);
  box-shadow: 0 0 12px rgba(176, 96, 240, 0.2);
  transform: translateY(-2px);
}

[data-domain="cs"]       .skill-badge {
  background: rgba(255, 153, 102, 0.06);
  color: #ff9966;
  border-color: rgba(255, 153, 102, 0.18);
}
[data-domain="cs"]       .skill-badge:hover {
  background: rgba(255, 153, 102, 0.14);
  border-color: rgba(255, 153, 102, 0.5);
  box-shadow: 0 0 12px rgba(255, 153, 102, 0.2);
  transform: translateY(-2px);
}

.skill-badge.certified::before {
  content: '★';
  font-size: 0.65rem;
}

/* 10. PROJECTS
    ============================================================ */
.projects-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  margin-top: calc(var(--space-8) * -1 + var(--space-3));
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.project-card-wrap {
  display: flex;
}

.project-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow), var(--glass-inset);
  overflow: hidden;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  cursor: default;
}

/* Colored left accent bar */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.project-card[data-category="mobile"]::before  { background: linear-gradient(180deg, var(--accent-blue), rgba(95,168,245,0.2)); }
.project-card[data-category="devops"]::before  { background: linear-gradient(180deg, var(--accent-cyan), rgba(0,212,255,0.2)); }
.project-card[data-category="backend"]::before { background: linear-gradient(180deg, #ff9966, rgba(255,153,102,0.2)); }

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--glass-shadow), var(--glass-inset), 0 20px 50px rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] .project-card:hover {
  box-shadow: var(--glass-shadow), var(--glass-inset), 0 20px 50px rgba(0, 0, 0, 0.4);
}

/* Card inner layout */
.project-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-4) var(--space-4) var(--space-5) calc(var(--space-4) + 4px);
}

.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.project-cat-label {
  font-size: 0.58rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  font-weight: 600;
}

.cat-mobile  { background: rgba(95, 168, 245, 0.12); color: var(--accent-blue);  border: 1px solid rgba(95, 168, 245, 0.25); }
.cat-devops  { background: rgba(0, 212, 255, 0.1);   color: var(--accent-cyan);  border: 1px solid rgba(0, 212, 255, 0.2); }
.cat-backend { background: rgba(255, 153, 102, 0.1); color: #ff9966;             border: 1px solid rgba(255, 153, 102, 0.25); }

/* Mini diagram preview — colored node dots */
.project-mini-arch {
  display: flex;
  align-items: center;
  gap: 4px;
}

.mini-node {
  height: 6px;
  border-radius: 3px;
  opacity: 0.7;
}

.mini-sep {
  font-size: 0.5rem;
  color: var(--border-subtle);
  line-height: 1;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
  line-height: 1.25;
}

.project-subtitle {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: 12px;
  font-family: var(--font-mono);
}

.project-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 16px;
}

.project-tag,
.project-tag-more {
  font-size: 0.63rem;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  white-space: nowrap;
  font-family: var(--font-mono);
}

.project-details-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-blue);
  background: transparent;
  border: 1px solid rgba(95, 168, 245, 0.22);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  align-self: flex-start;
  margin-top: auto;
}

.project-details-btn:hover {
  background: rgba(95, 168, 245, 0.08);
  border-color: rgba(95, 168, 245, 0.5);
  color: var(--text-primary);
}

.project-details-btn svg {
  width: 13px; height: 13px;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.project-details-btn:hover svg {
  transform: translateX(3px);
}

/* 10b. PROJECT MODAL
    ============================================================ */
#project-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

#project-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.modal-panel {
  position: relative;
  width: 100%;
  max-width: 720px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--modal-surface);
  border: 1px solid var(--modal-border);
  border-radius: var(--radius-xl, 20px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.3), var(--glass-inset);
  padding: var(--space-7) var(--space-6) var(--space-6);
  transform: translateY(18px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#project-modal.active .modal-panel {
  transform: translateY(0) scale(1);
}

.modal-panel::-webkit-scrollbar { width: 4px; }
.modal-panel::-webkit-scrollbar-track { background: transparent; }
.modal-panel::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 2px; }

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
  z-index: 1;
}

.modal-close:hover {
  background: var(--border-subtle);
  color: var(--text-primary);
}

.modal-close svg { width: 14px; height: 14px; }

.modal-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-right: 50px;
}

.modal-cat-badge {
  font-size: 0.6rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 5px;
}

.modal-title-group {
  display: flex;
  flex-direction: column;
}

.modal-title {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.modal-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-top: 5px;
}

.modal-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.78;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}

.modal-section {
  margin-bottom: var(--space-5);
}

.modal-section-title {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}

/* Architecture diagram — always dark */
.arch-diagram {
  background: rgba(8, 6, 24, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 12px;
  padding: 24px 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  --text-primary:   #e8e8f0;
  --text-muted:     #7080a0;
  --border-subtle:  rgba(255, 255, 255, 0.07);
}

.arch-tier {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
}

.arch-tier-label {
  font-size: 0.58rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.arch-nodes-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  justify-content: center;
}

.arch-node {
  padding: 10px 16px;
  border-radius: 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 110px;
  max-width: 200px;
}

.arch-node-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.arch-node-sub {
  font-size: 0.61rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Node color variants */
.nc-blue   { background: rgba(95, 168, 245, 0.12);  border: 1px solid rgba(95, 168, 245, 0.32); }
.nc-cyan   { background: rgba(0, 212, 255, 0.1);    border: 1px solid rgba(0, 212, 255, 0.28); }
.nc-green  { background: rgba(0, 200, 100, 0.1);    border: 1px solid rgba(0, 200, 100, 0.28); }
.nc-purple { background: rgba(176, 96, 240, 0.12);  border: 1px solid rgba(176, 96, 240, 0.3); }
.nc-orange { background: rgba(255, 153, 102, 0.1);  border: 1px solid rgba(255, 153, 102, 0.28); }
.nc-teal   { background: rgba(0, 180, 160, 0.1);    border: 1px solid rgba(0, 180, 160, 0.28); }
.nc-gray   { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.12); }

.arch-arrow-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 4px 0;
}

.arch-v-line {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.12);
}

.arch-edge-label {
  font-size: 0.57rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.arch-v-tip {
  font-size: 0.5rem;
  color: var(--text-muted);
  line-height: 1;
}

/* Features list */
.modal-feat-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-feat-list li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.62;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.feat-check {
  color: var(--matrix-green);
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  margin-top: 3px;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.modal-tag {
  font-size: 0.67rem;
  padding: 4px 11px;
  border-radius: 999px;
  font-family: var(--font-mono);
}

.cat-mobile-tag  { background: rgba(95, 168, 245, 0.1);  color: var(--accent-blue); border: 1px solid rgba(95, 168, 245, 0.2); }
.cat-devops-tag  { background: rgba(0, 212, 255, 0.08);  color: var(--accent-cyan); border: 1px solid rgba(0, 212, 255, 0.18); }
.cat-backend-tag { background: rgba(255, 153, 102, 0.08); color: #ff9966;            border: 1px solid rgba(255, 153, 102, 0.2); }

.modal-footer {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}

.modal-github-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: rgba(95, 168, 245, 0.07);
  border: 1px solid rgba(95, 168, 245, 0.22);
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.modal-github-btn:hover {
  background: rgba(95, 168, 245, 0.14);
  border-color: rgba(95, 168, 245, 0.45);
}

.modal-github-btn svg { width: 15px; height: 15px; }

/* 11. CERTIFICATIONS
    ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  max-width: 1100px;
}

.cert-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow), var(--glass-inset);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  opacity: 0;
  transform: translateY(24px);
}

.cert-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.cert-card:hover {
  transform: translateY(-6px) !important;
}

.cert-icon-wrap {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-bottom: var(--space-3);
  font-size: 1.6rem;
  position: relative;
}

.cert-icon-wrap::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0.2;
}

.cert-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.cert-issuer {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.cert-year {
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.6;
}

.cert-card.ccna:hover {
  border-color: rgba(218, 31, 38, 0.35);
  box-shadow: var(--glass-shadow), 0 0 28px rgba(218, 31, 38, 0.12);
}
.cert-card.ccna .cert-icon-wrap { color: #da1f26; background: rgba(218, 31, 38, 0.1); }

.cert-card.ejpt:hover {
  border-color: rgba(0, 120, 215, 0.35);
  box-shadow: var(--glass-shadow), 0 0 28px rgba(0, 120, 215, 0.12);
}
.cert-card.ejpt .cert-icon-wrap { color: #0078d7; background: rgba(0, 120, 215, 0.1); }

.cert-card.android:hover {
  border-color: rgba(52, 168, 83, 0.35);
  box-shadow: var(--glass-shadow), 0 0 28px rgba(52, 168, 83, 0.12);
}
.cert-card.android .cert-icon-wrap { color: #34a853; background: rgba(52, 168, 83, 0.1); }

.cert-card.sysdesign:hover {
  border-color: rgba(95, 168, 245, 0.35);
  box-shadow: var(--glass-shadow), 0 0 28px rgba(95, 168, 245, 0.12);
}
.cert-card.sysdesign .cert-icon-wrap { color: #5fa8f5; background: rgba(95, 168, 245, 0.1); }

/* 12. CONTACT
    ============================================================ */
.contact-terminal {
  max-width: 640px;
  overflow: hidden;
  position: relative;
}

.contact-terminal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), transparent);
}

.contact-links {
  padding: var(--space-4) var(--space-4) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.contact-link:hover {
  color: var(--accent-blue);
}

.contact-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent-blue);
  transition: width var(--transition-normal);
}

.contact-link:hover::after {
  width: 100%;
}

.cmd-prompt {
  color: var(--accent-blue);
  flex-shrink: 0;
  font-weight: 600;
}

.cmd-text {
  flex: 1;
}

.link-arrow {
  width: 16px; height: 16px;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  flex-shrink: 0;
}

.contact-link:hover .link-arrow {
  opacity: 1;
  transform: translateX(3px);
}

.contact-footer {
  padding: var(--space-2) var(--space-4) var(--space-4);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* 13. FOOTER
    ============================================================ */
footer {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

.footer-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.footer-copy {
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.5;
}

/* 14. KONAMI OVERLAY
    ============================================================ */
#konami-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.96);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

#konami-overlay.active {
  opacity: 1;
  pointer-events: all;
}

#matrix-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#konami-message {
  position: relative;
  z-index: 1;
  font-size: clamp(1.2rem, 4vw, 2rem);
  color: var(--matrix-green);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-shadow: 0 0 20px var(--matrix-green),
               0 0 40px rgba(0, 255, 136, 0.5);
  animation: konamiPulse 1.5s ease-in-out infinite;
  text-align: center;
}

.konami-brackets {
  color: var(--text-muted);
  font-weight: 400;
}

#konami-close {
  position: relative;
  z-index: 1;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  padding: 8px 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
}

#konami-close:hover {
  color: var(--text-secondary);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Secret hint flash */
.secret-hint {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9998;
  font-size: 0.75rem;
  color: var(--accent-blue);
  background: var(--hint-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 20px;
  animation: fadeUp 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* 15. SCROLL REVEAL
    ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 16. KEYFRAMES
    ============================================================ */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes textReveal {
  from { opacity: 0; clip-path: inset(0 100% 0 0); transform: translateX(-6px); }
  40%  { opacity: 1; }
  to   { opacity: 1; clip-path: inset(0 0% 0 0);   transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(36px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(95, 168, 245, 0.5); }
  50%       { box-shadow: 0 0 0 6px rgba(95, 168, 245, 0); }
}

@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  45%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  55%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0.3; }
}

@keyframes scanline {
  0%   { top: -40%; }
  100% { top: 110%; }
}

@keyframes glitch-1 {
  0%, 89%, 100% { clip-path: inset(100% 0 0 0); transform: translate(0); }
  90%  { clip-path: inset(10% 0 65% 0); transform: translate(-4px, 1px); }
  92%  { clip-path: inset(50% 0 30% 0); transform: translate(4px, -1px); }
  94%  { clip-path: inset(80% 0 5%  0); transform: translate(-3px, 0); }
  96%  { clip-path: inset(25% 0 55% 0); transform: translate(3px, 1px); }
  98%  { clip-path: inset(60% 0 15% 0); transform: translate(-2px, -1px); }
}

@keyframes glitch-2 {
  0%, 91%, 100% { clip-path: inset(100% 0 0 0); transform: translate(0); }
  91%  { clip-path: inset(35% 0 45% 0); transform: translate(4px, -1px); }
  93%  { clip-path: inset(5%  0 80% 0); transform: translate(-4px, 1px); }
  95%  { clip-path: inset(70% 0 10% 0); transform: translate(2px, 0); }
  97%  { clip-path: inset(15% 0 70% 0); transform: translate(-3px, -1px); }
  99%  { clip-path: inset(45% 0 35% 0); transform: translate(3px, 1px); }
}

@keyframes konamiPulse {
  0%, 100% { opacity: 1; text-shadow: 0 0 20px var(--matrix-green), 0 0 40px rgba(0, 255, 136, 0.5); }
  50%       { opacity: 0.8; text-shadow: 0 0 40px var(--matrix-green), 0 0 80px rgba(0, 255, 136, 0.4); }
}

/* 17. RESPONSIVE
    ============================================================ */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: var(--space-8) var(--space-3);
  }

  /* Hero two-column → single column */
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-right {
    display: none;
  }

  /* Nav mobile */
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 0;
    overflow: hidden;
    flex-direction: column;
    background: var(--nav-mobile-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    transition: height var(--transition-slow);
    border-bottom: 1px solid transparent;
    z-index: 100;
  }

  .nav-links.nav-links--open {
    height: 100vh;
    border-bottom-color: var(--border-subtle);
  }

  .nav-links a {
    font-size: 1.1rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 0.3s ease, color var(--transition-fast);
  }

  .nav-links.nav-links--open a {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-links.nav-links--open li:nth-child(1) a { transition-delay: 0.1s; }
  .nav-links.nav-links--open li:nth-child(2) a { transition-delay: 0.15s; }
  .nav-links.nav-links--open li:nth-child(3) a { transition-delay: 0.2s; }
  .nav-links.nav-links--open li:nth-child(4) a { transition-delay: 0.25s; }
  .nav-links.nav-links--open li:nth-child(5) a { transition-delay: 0.3s; }

  /* About */
  .about-billboard {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .about-billboard-photo {
    min-height: 280px;
    order: -1;
  }

  .about-billboard-photo::before {
    width: 100%;
    background: linear-gradient(180deg, var(--bg-secondary), transparent 40%);
  }

  .about-billboard-photo::after {
    display: none;
  }

  .about-billboard-text {
    padding: var(--space-6) var(--space-4);
  }

  .about-content-row {
    grid-template-columns: 1fr;
  }

  .about-stats {
    gap: var(--space-4);
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .modal-panel {
    padding: var(--space-5) var(--space-4) var(--space-4);
  }

  .modal-title {
    font-size: 1.2rem;
  }

  /* Certs */
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 480px;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .about-stats {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .section-header h2 {
    font-size: 1.4rem;
  }
}