/* ============================================
   ELNMER - Premium Brand Website
   Dark Cyberpunk / Tiger Stealth Theme
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #121212;
  --bg-card: #1A1A24;
  --bg-card-alpha: rgba(26, 26, 36, 0.45);
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent: #F59E0B;
  --accent-bright: #FCEE0A;
  --accent-fire: #FF5722;
  --accent-glow: rgba(245, 158, 11, 0.5);
  --accent-glow-bright: rgba(252, 238, 10, 0.6);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(245, 158, 11, 0.3);
  --glass-bg: rgba(26, 26, 36, 0.35);
  --glass-border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', sans-serif;
  --font-ar: 'Cairo', 'Almarai', sans-serif;
  --font-ar-heading: 'Almarai', 'Cairo', sans-serif;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-bright); }

/* ---------- Particle Canvas ---------- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 1;
  padding: 2rem;
}

.hero-content {
  max-width: 900px;
}

/* ---------- Glitch Title ---------- */
.glitch-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 2rem;
}

.glitch {
  font-family: var(--font-mono);
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.12em;
  position: relative;
  display: inline-block;
  text-transform: uppercase;
  text-shadow:
    0 0 10px var(--accent-glow),
    0 0 40px var(--accent-glow),
    0 0 80px rgba(245, 158, 11, 0.2);
  animation: glitch-skew 4s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.glitch::before {
  color: var(--accent-fire);
  z-index: -1;
  animation: glitch-before 3s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch::after {
  color: var(--accent-bright);
  z-index: -2;
  animation: glitch-after 2s infinite linear alternate-reverse;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-before {
  0%   { transform: translate(0); }
  20%  { transform: translate(-3px, 3px); }
  40%  { transform: translate(-3px, -3px); }
  60%  { transform: translate(3px, 3px); }
  80%  { transform: translate(3px, -3px); }
  100% { transform: translate(0); }
}

@keyframes glitch-after {
  0%   { transform: translate(0); }
  20%  { transform: translate(3px, -2px); }
  40%  { transform: translate(3px, 2px); }
  60%  { transform: translate(-3px, -2px); }
  80%  { transform: translate(-3px, 2px); }
  100% { transform: translate(0); }
}

@keyframes glitch-skew {
  0%   { transform: skew(0deg); }
  2%   { transform: skew(1deg); }
  4%   { transform: skew(0deg); }
  48%  { transform: skew(0deg); }
  50%  { transform: skew(-0.5deg); }
  52%  { transform: skew(0deg); }
  100% { transform: skew(0deg); }
}

/* Glitch line sweep */
.glitch-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: -10%;
  width: 120%;
  height: 3px;
  background: var(--accent);
  opacity: 0;
  animation: glitch-line 4s infinite;
  box-shadow: 0 0 15px var(--accent-glow-bright);
}

@keyframes glitch-line {
  0%, 92%  { opacity: 0; top: 0; }
  93%      { opacity: 1; top: 10%; }
  95%      { opacity: 1; top: 60%; }
  96%      { opacity: 0; top: 90%; }
  100%     { opacity: 0; top: 100%; }
}

/* ---------- Typing Effect ---------- */
.typing-container {
  min-height: 3.5rem;
  margin-top: 1rem;
}

.typed-text {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  line-height: 1.8;
}

.cursor {
  display: inline-block;
  width: 3px;
  height: 1.3em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.85s step-end infinite;
  box-shadow: 0 0 8px var(--accent-glow);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ---------- Subtitle ---------- */
.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 2.5rem;
  opacity: 0;
  animation: fadeInUp 1s 0.5s forwards;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ---------- CTA Button ---------- */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding: 1rem 2.5rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition);
  opacity: 0;
  animation: fadeInUp 0.8s 1s forwards;
  position: relative;
  overflow: hidden;
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: var(--accent-bright);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.cta-btn:hover {
  box-shadow:
    0 0 20px var(--accent-glow),
    0 0 60px rgba(245, 158, 11, 0.15);
  transform: translateY(-2px);
}

.cta-btn:hover::before {
  width: 300px;
  height: 300px;
}

.cta-btn span {
  position: relative;
  z-index: 1;
}

/* ============================================
   COUNTDOWN SECTION
   ============================================ */
.countdown-section {
  position: relative;
  z-index: 1;
  padding: 5rem 2rem 6rem;
  text-align: center;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 3rem;
  color: var(--text-primary);
  text-shadow: 0 0 20px var(--accent-glow);
}

.section-title .accent {
  color: var(--accent);
}

/* ---------- Flip Clock ---------- */
.flip-clock {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: clamp(1rem, 3vw, 2.5rem);
  flex-wrap: wrap;
}

.flip-unit-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.flip-unit {
  position: relative;
  width: clamp(90px, 18vw, 150px);
  height: clamp(100px, 20vw, 160px);
  perspective: 400px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.flip-unit .upper,
.flip-unit .lower {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flip-unit .upper {
  top: 0;
  background: linear-gradient(180deg, rgba(30, 30, 46, 0.95), rgba(26, 26, 36, 0.9));
  border-bottom: 1px solid rgba(0, 0, 0, 0.4);
}

.flip-unit .lower {
  bottom: 0;
  background: linear-gradient(180deg, rgba(22, 22, 32, 0.95), rgba(18, 18, 28, 0.9));
}

.flip-unit .upper span,
.flip-unit .lower span {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--text-primary);
  text-shadow: 0 0 15px var(--accent-glow);
  line-height: 1;
}

/* Position the number so upper shows top half, lower shows bottom half */
.flip-unit .upper span {
  transform: translateY(50%);
}

.flip-unit .lower span {
  transform: translateY(-50%);
}

/* ---------- Flip Animation Overlays ---------- */
.flip-unit .flip-top,
.flip-unit .flip-bottom {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  backface-visibility: hidden;
  z-index: 5;
}

.flip-unit .flip-top {
  top: 0;
  background: linear-gradient(180deg, rgba(30, 30, 46, 0.95), rgba(26, 26, 36, 0.9));
  border-bottom: 1px solid rgba(0, 0, 0, 0.4);
  transform-origin: bottom center;
  animation: flipDown 0.6s ease-in forwards;
  border-radius: var(--radius) var(--radius) 0 0;
}

.flip-unit .flip-bottom {
  bottom: 0;
  background: linear-gradient(180deg, rgba(22, 22, 32, 0.95), rgba(18, 18, 28, 0.9));
  transform-origin: top center;
  transform: rotateX(90deg);
  animation: flipUp 0.6s 0.3s ease-out forwards;
  border-radius: 0 0 var(--radius) var(--radius);
}

.flip-unit .flip-top span,
.flip-unit .flip-bottom span {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--text-primary);
  text-shadow: 0 0 15px var(--accent-glow);
  line-height: 1;
}

.flip-unit .flip-top span {
  transform: translateY(50%);
}

.flip-unit .flip-bottom span {
  transform: translateY(-50%);
}

@keyframes flipDown {
  0%   { transform: rotateX(0deg); }
  100% { transform: rotateX(-90deg); }
}

@keyframes flipUp {
  0%   { transform: rotateX(90deg); }
  100% { transform: rotateX(0deg); }
}

/* Glow pulse on flip */
.flip-unit.flipping {
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.5),
    0 0 30px var(--accent-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: box-shadow 0.4s;
}

/* Separator dots */
.flip-separator {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  align-self: center;
  padding-bottom: 2.5rem;
}

.flip-separator .dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-glow);
  animation: dotPulse 1.5s ease-in-out infinite;
}

.flip-separator .dot:nth-child(2) {
  animation-delay: 0.3s;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.7); }
}

.flip-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

/* ============================================
   BLUR / GLASSMORPHISM INFO CARD
   ============================================ */
.info-section {
  position: relative;
  z-index: 1;
  padding: 3rem 2rem 5rem;
  display: flex;
  justify-content: center;
}

.blur-card {
  position: relative;
  max-width: 700px;
  width: 100%;
  padding: 2.5rem 3rem;
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  /* Copy protection */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  transition: all var(--transition);
}

.blur-card:hover {
  border-color: var(--border-glow);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(245, 158, 11, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Decorative corner accents */
.blur-card::before,
.blur-card::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 30px;
  border-color: var(--accent);
  border-style: solid;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.blur-card::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
  border-radius: var(--radius) 0 0 0;
}

.blur-card::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 2px 2px 0;
  border-radius: 0 0 var(--radius) 0;
}

.blur-card:hover::before,
.blur-card:hover::after {
  opacity: 1;
}

/* Protected text lines - displayed via pseudo-elements, empty actual content */
.protected-line {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: transparent; /* actual text invisible */
  line-height: 2;
  pointer-events: none;
}

.protected-line::before {
  position: absolute;
  left: 0;
  top: 0;
  color: var(--text-secondary);
  pointer-events: none;
}

/* Each line gets its display text via a data attribute rendered by ::before */
.protected-line[data-display]::before {
  content: attr(data-display);
}

.blur-card-title {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  position: relative;
  color: transparent;
}

.blur-card-title::before {
  content: attr(data-display);
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
}

/* Glassmorphism highlight bar */
.blur-card-highlight {
  margin-top: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(245, 158, 11, 0.06);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  position: relative;
  color: transparent;
}

.blur-card-highlight::before {
  content: attr(data-display);
  position: absolute;
  left: 1.5rem;
  top: 1rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============================================
   SKILLS / TECH STACK
   ============================================ */
.skills-section {
  position: relative;
  z-index: 1;
  padding: 5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding: 2rem 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  cursor: default;
  transition: all var(--transition);
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--accent) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

.skill-card:hover {
  transform: translateY(-6px);
  background: rgba(26, 26, 36, 0.55);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(245, 158, 11, 0.08);
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-icon {
  font-size: 2.2rem;
  transition: transform var(--transition);
}

.skill-card:hover .skill-icon {
  transform: scale(1.15);
}

.skill-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-align: center;
}

/* ============================================
   PROJECTS / TERMINAL SECTION
   ============================================ */
.terminal-section {
  position: relative;
  z-index: 1;
  padding: 5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.terminal-window {
  background: rgba(12, 12, 20, 0.9);
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(20, 20, 30, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal-dot.red    { background: #FF5F57; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green  { background: #28CA41; }

.terminal-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.terminal-body {
  padding: 1.5rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 2;
  min-height: 250px;
}

.terminal-line {
  margin-bottom: 0.3rem;
}

.terminal-prompt {
  color: var(--accent);
}

.terminal-command {
  color: var(--text-primary);
}

.terminal-output {
  color: var(--text-secondary);
  padding-left: 1.2rem;
}

.terminal-comment {
  color: var(--text-muted);
  font-style: italic;
}

.terminal-link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color var(--transition);
}
.terminal-link:hover {
  color: var(--accent-bright);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 3rem;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 20px var(--accent-glow);
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.social-link:hover {
  color: var(--accent);
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ============================================
   UTILITY ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInFromLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.6; }
}

/* Loading shimmer for countdown */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.countdown-section.loading .flip-unit {
  background: linear-gradient(
    90deg,
    var(--bg-card) 25%,
    rgba(30, 30, 46, 1) 50%,
    var(--bg-card) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .flip-clock {
    gap: 0.8rem;
  }

  .flip-separator {
    display: none;
  }

  .blur-card {
    padding: 2rem 1.5rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 1rem;
  }

  .terminal-body {
    padding: 1rem 1.2rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .flip-clock {
    gap: 0.5rem;
  }

  .flip-unit {
    width: 72px;
    height: 85px;
  }

  .flip-label {
    font-size: 0.65rem;
  }

  .blur-card {
    padding: 1.5rem 1rem;
  }

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .skill-card {
    padding: 1.2rem 0.5rem;
  }

  .cta-btn {
    padding: 0.8rem 1.8rem;
    font-size: 0.85rem;
  }
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}