/* 
  style.css
  Rafi Athallah Portfolio Styling
  Bootstrap 5 is loaded globally. This sheet defines custom layouts, dual-mode theme setups, and interactions.
*/

@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Inter:wght@300;400;500;600;700&family=Instrument+Serif:ital,wght@0,400;1,400&display=swap');

/* --- Theme Variables --- */
:root {
  /* Default: Light Mode - Simple Portfolio styling */
  --bg-color: #f8f9fa;
  --text-color: #111827;
  --text-muted: #4b5563;
  --card-bg: rgba(255, 255, 255, 0.55);
  --card-border: rgba(17, 24, 39, 0.07);
  --navbar-bg: rgba(248, 249, 250, 0.75);
  --navbar-border: rgba(17, 24, 39, 0.05);
  
  --accent-color: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  --accent-glow: rgba(79, 70, 229, 0.15);
  
  --radius-lg: 16px;
  --radius-md: 10px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  --lightbox-bg: rgba(255, 255, 255, 0.88);
  --cli-bg-trans: rgba(243, 243, 235, 0.95);

  /* CLI Terminal Theme (Light Variant) */
  --cli-bg: #f3f3eb;
  --cli-text: #1b2e1b;
  --cli-text-dim: rgba(27, 46, 27, 0.65);
  --cli-border: #1b2e1b;
  --cli-scrollbar-thumb: #d3d3cb;
  --cli-glow: none;
  --cli-input-caret: #1b2e1b;
}

[data-theme="dark"] {
  /* Dark Mode - Simple Portfolio styling */
  --bg-color: #0b0c10;
  --text-color: #f3f4f6;
  --text-muted: #cbd5e1;
  --card-bg: rgba(17, 20, 28, 0.65);
  --card-border: rgba(255, 255, 255, 0.06);
  --navbar-bg: rgba(11, 12, 16, 0.75);
  --navbar-border: rgba(255, 255, 255, 0.05);
  
  --accent-color: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --accent-glow: rgba(139, 92, 246, 0.25);
  --lightbox-bg: rgba(11, 12, 16, 0.92);
  --cli-bg-trans: rgba(5, 7, 5, 0.9);

  /* CLI Terminal Theme (Dark Variant) */
  --cli-bg: #050705;
  --cli-text: #39ff14;
  --cli-text-dim: rgba(57, 255, 20, 0.6);
  --cli-border: #39ff14;
  --cli-scrollbar-thumb: #004d00;
  --cli-glow: 0 0 12px rgba(57, 255, 20, 0.35);
  --cli-input-caret: #39ff14;
}

/* --- Global Styles --- */
body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.5s ease, color 0.5s ease;
}

.text-muted, .text-secondary {
  color: var(--text-muted) !important;
  transition: color 0.5s ease;
}

/* Custom Scrollbar for Simple Portfolio */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Shared Navigation Bar --- */
.navbar-custom {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--navbar-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--navbar-border);
  z-index: 1000;
  transition: background-color 0.5s ease, border-color 0.5s ease;
}

.brand-text {
  font-family: 'Instrument Serif', serif;
  font-size: 1.8rem;
  letter-spacing: -0.02em;
  color: var(--text-color) !important;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.nav-link-custom {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted) !important;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.nav-link-custom:hover {
  color: var(--text-color) !important;
}

#simple-nav-links {
  display: none !important;
}

@media (min-width: 992px) {
  body.simple-mode-active #simple-nav-links {
    display: flex !important;
  }
}

.nav-mode-btn {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  transition: var(--transition-smooth);
}

.nav-mode-btn:hover {
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.08);
}

.nav-mode-btn.active-mode {
  color: var(--text-color);
  border-color: var(--card-border);
  background: var(--card-bg);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.nav-toggle-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.nav-toggle-icon-btn:hover {
  transform: scale(1.05);
  border-color: var(--text-muted);
}

/* --- View Transitioning --- */
.mode-view {
  opacity: 1;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.mode-view.fade-out {
  opacity: 0;
  transform: translateY(12px) scale(0.99);
}

.d-none-important {
  display: none !important;
}

/* ==========================================================================
   CLI TERMINAL MODE
   ========================================================================== */

#cli-view {
  min-height: 100vh;
  padding-top: 75px;
  display: flex;
  flex-direction: column;
  justify-content: stretch;
  position: relative;
  overflow: hidden;
  background-color: var(--cli-bg);
  transition: background-color 0.5s ease;
}

/* Matrix Background Canvas */
#matrix-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.15;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

/* Terminal Wrapper Window */
.terminal-window {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  width: 95%;
  margin: 1.5rem auto;
  border: 2px solid var(--cli-border);
  border-radius: 8px;
  background: var(--cli-bg-trans);
  box-shadow: var(--cli-glow);
  z-index: 5;
  overflow: hidden;
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  position: relative;
}

.terminal-header {
  background: var(--cli-border);
  color: var(--cli-bg);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: bold;
}

.terminal-buttons {
  display: flex;
  gap: 6px;
}

.terminal-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cli-bg);
  opacity: 0.6;
}

.terminal-body {
  padding: 1.5rem;
  flex-grow: 1;
  overflow-y: auto;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--cli-text);
  text-shadow: var(--cli-glow);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Terminal Scrollbar */
.terminal-body::-webkit-scrollbar {
  width: 6px;
}
.terminal-body::-webkit-scrollbar-track {
  background: transparent;
}
.terminal-body::-webkit-scrollbar-thumb {
  background: var(--cli-scrollbar-thumb);
  border-radius: 3px;
}

/* CRT monitor scanlines + flicker effect */
.crt::before {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  z-index: 10;
  background-size: 100% 4px, 3px 100%;
  pointer-events: none;
}

@keyframes crt-flicker {
  0% { opacity: 0.985; }
  50% { opacity: 0.99; }
  100% { opacity: 0.985; }
}

.crt {
  animation: crt-flicker 0.15s infinite;
}

/* Terminal Typography & Formatting */
.term-line {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}

.term-prompt {
  color: var(--cli-text);
  font-weight: bold;
}

.term-output {
  color: var(--cli-text-dim);
  margin-bottom: 0.5rem;
}

.term-cmd {
  color: var(--cli-text);
  font-weight: bold;
}

.term-table {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0.5rem 1rem;
  margin: 0.5rem 0;
}

.term-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  margin-right: 0.4rem;
  margin-bottom: 0.4rem;
  background: transparent;
  border: 1px solid var(--cli-text);
  color: var(--cli-text);
  font-size: 0.8rem;
  border-radius: 4px;
}

/* CLI Interactive Inputs */
.term-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cli-input-wrapper {
  position: relative;
  flex-grow: 1;
  display: flex;
}

.cli-hidden-input {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  background: transparent;
  border: none;
  outline: none;
  color: transparent;
  caret-color: transparent;
  font-family: inherit;
  font-size: inherit;
  z-index: 2;
}

.cli-visible-text {
  font-family: inherit;
  font-size: inherit;
  color: var(--cli-text);
  min-height: 1.5em;
  white-space: pre;
  display: inline-block;
  z-index: 1;
  word-break: break-all;
}

.cli-cursor {
  display: inline-block;
  width: 9px;
  height: 18px;
  background: var(--cli-input-caret);
  vertical-align: middle;
  margin-left: 2px;
  animation: blink-caret 0.8s infinite steps(2);
}

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

/* CLI ASCII Art / Matrix Colors */
.term-ascii {
  color: var(--cli-text);
  font-family: monospace;
  white-space: pre;
  line-height: 1.15;
  margin-bottom: 1rem;
  overflow-x: auto;
}

/* Sound indicator panel */
.sound-toggle-term {
  background: transparent;
  border: 1px solid var(--cli-text);
  color: var(--cli-text);
  font-family: inherit;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s ease;
}
.sound-toggle-term:hover {
  background: var(--cli-text);
  color: var(--cli-bg);
}

/* ==========================================================================
   SIMPLE PORTFOLIO MODE
   ========================================================================== */

#simple-view {
  min-height: 100vh;
  padding-top: 75px;
  position: relative;
}

/* Particles Canvas */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Hero Section */
.hero-simple {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 4rem 0;
}

.profile-container {
  position: relative;
  display: inline-block;
}

.profile-img-wrapper {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  overflow: hidden;
  border: 5px solid var(--card-bg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  position: relative;
}

.profile-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.profile-img-wrapper:hover img {
  transform: scale(1.04);
}

.hero-glow-blob {
  position: absolute;
  width: 320px;
  height: 320px;
  background: var(--accent-gradient);
  opacity: 0.15;
  filter: blur(50px);
  border-radius: 50%;
  top: -30px;
  left: -30px;
  z-index: -1;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.display-title {
  font-family: 'Instrument Serif', serif;
  font-size: 3.5rem;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.subtitle {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-muted);
}

.btn-accent {
  background: var(--accent-gradient);
  color: #FFFFFF !important;
  border: none;
  font-weight: 500;
  border-radius: 50px;
  padding: 0.75rem 2rem;
  box-shadow: 0 10px 20px var(--accent-glow);
  transition: var(--transition-smooth);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px var(--accent-glow);
}

.btn-outline-custom {
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-color);
  font-weight: 500;
  border-radius: 50px;
  padding: 0.75rem 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.btn-outline-custom:hover {
  border-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.08);
}

/* Glassmorphism Section Layouts */
.section-title-simple {
  font-family: 'Instrument Serif', serif;
  font-size: 2.8rem;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin-bottom: 3rem;
  position: relative;
}

.section-title-simple::after {
  content: "";
  display: block;
  width: 45px;
  height: 2px;
  background: var(--accent-gradient);
  margin-top: 0.5rem;
}

.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.01);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.15);
  box-shadow: 0 20px 40px rgba(0,0,0,0.03);
}

/* Experience / Education Timelines */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 5px;
  width: 2px;
  background: var(--card-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-color);
  box-shadow: 0 0 0 4px var(--card-bg);
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}

.timeline-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

/* Skills Category Layouts */
.skill-badge-custom {
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.skill-badge-custom:hover {
  background: var(--accent-gradient);
  color: #FFFFFF;
  transform: translateY(-2px);
  border-color: transparent;
}

/* Dynamic Filter Tabs */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-tab-btn {
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-color);
  padding: 0.4rem 1.25rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-tab-btn:hover {
  border-color: var(--text-muted);
}

.filter-tab-btn.active {
  background: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
}

/* Projects Simple Mode Grid Card */
.project-card-simple {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.project-card-simple:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.04);
}

.project-img-wrapper-simple {
  height: 190px;
  overflow: hidden;
  background: var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.project-img-wrapper-simple img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card-simple:hover .project-img-wrapper-simple img {
  transform: scale(1.04);
}

.project-content-simple {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title-simple {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.project-desc-simple {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.tag-badge-simple {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-weight: 500;
}

.project-card-simple:hover .tag-badge-simple {
  background: var(--card-border);
  color: var(--text-color);
}

.project-links-simple {
  display: flex;
  gap: 1rem;
}

.project-link-simple {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-color);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: opacity 0.2s ease;
}

.project-link-simple:hover {
  opacity: 0.7;
}

/* Glassmorphism Form Control inputs */
.form-glass {
  background: rgba(255, 255, 255, 0.04) !important;
  border: 1px solid var(--card-border) !important;
  color: var(--text-color) !important;
  border-radius: var(--radius-md) !important;
  padding: 0.75rem 1rem !important;
  transition: var(--transition-smooth) !important;
}

.form-glass:focus {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 0 4px var(--accent-glow) !important;
}

.form-glass::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

/* --- Social Media Section --- */
.social-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-color);
  transition: var(--transition-smooth);
  text-decoration: none;
}

.social-icon-box:hover {
  background: var(--accent-gradient);
  color: #FFFFFF !important;
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: 0 8px 20px var(--accent-glow);
}

/* --- Loading Overlay Screen --- */
#loading-screen {
  position: fixed;
  inset: 0;
  background: #050705;
  color: #39ff14;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: 'Share Tech Mono', monospace;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

#loading-screen.fade-out-loader {
  opacity: 0;
  pointer-events: none;
}

.loader-terminal {
  width: 90%;
  max-width: 500px;
  text-align: left;
  border: 1px solid #39ff14;
  border-radius: 6px;
  padding: 1.5rem;
  background: #000000;
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.15);
}

.loader-progress {
  height: 4px;
  background: #004d00;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 1rem;
}

.loader-progress-bar {
  height: 100%;
  background: #39ff14;
  width: 0%;
  transition: width 0.1s linear;
}

/* --- Responsive Adjustments --- */
@media (max-width: 991.98px) {
  .hero-simple {
    text-align: center;
    padding-top: 2rem;
  }
  .hero-simple .col-lg-5 {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
  }
}

@media (max-width: 767.98px) {
  .display-title {
    font-size: 2.5rem;
  }
  .section-title-simple {
    font-size: 2.2rem;
  }
  .navbar-nav {
    background: var(--navbar-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-top: 0.5rem;
  }
}

/* --- Custom Lightbox Modal --- */
.lightbox-modal {
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--lightbox-bg);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 3rem;
  color: var(--text-color);
  cursor: pointer;
  z-index: 2010;
  line-height: 1;
  font-weight: 200;
  transition: transform 0.2s ease, opacity 0.2s ease;
  user-select: none;
}

.lightbox-close:hover {
  transform: scale(1.1);
  opacity: 0.7;
}

.lightbox-content-wrapper {
  max-width: 90%;
  max-height: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox-modal.active .lightbox-content-wrapper {
  transform: scale(1);
}

.lightbox-content-wrapper img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--card-border);
}

.lightbox-caption {
  font-family: 'Instrument Serif', serif;
  font-size: 1.75rem;
  color: var(--text-color);
  margin-top: 1.5rem;
  text-align: center;
  font-weight: 400;
}