/* ==========================================================================
   STYLE.CSS - TOM DEMIR - DEEP TECH BRUTALIST PORTFOLIO
   ========================================================================== */

:root {
  --bg-color: #000000;
  --main-text-color: #f1f1f1;
  --secondary-text-color: #888888;
  --accent-color: #0090DA; /* Bleu Industriel */
  --card-bg-color: #0d0d0d;
  --card-border-color: #222222;
  --sidebar-width: 280px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--main-text-color);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 16px;
}

/* ==========================================================================
   VIDEO BACKGROUND
   ========================================================================== */
.video-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
}

#bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(0,0,0,0.6) 0%, rgba(0,0,0,1) 100%);
  z-index: -1;
}

/* ==========================================================================
   APP LAYOUT & SIDEBAR
   ========================================================================== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  background-color: var(--card-bg-color);
  border-right: 1px solid var(--card-border-color);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 100;
}

.sidebar .logo-text {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  color: #fff;
  font-size: 2.2rem;
  letter-spacing: -2px;
  text-decoration: none;
  display: inline-block;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.sidebar .logo-text span {
  color: var(--accent-color);
}

.sidebar .profile-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.sidebar .role-text {
  font-size: 0.75rem;
  color: var(--secondary-text-color);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 10px;
  font-weight: 400;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: -50px;
}

.nav-item {
  color: #fff;
  text-decoration: none;
  font-family: 'Oswald', sans-serif;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 10px 0;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-item:hover, .nav-item.active {
  color: var(--accent-color);
  border-bottom: 1px solid var(--accent-color);
  padding-left: 5px;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--secondary-text-color);
}

.social-icons {
  display: flex;
  gap: 20px;
  font-size: 1.2rem;
}

.social-icons a {
  color: var(--secondary-text-color);
  transition: color 0.2s ease;
}

.social-icons a:hover {
  color: #fff;
}

/* ==========================================================================
   MAIN CONTENT & LAYOUT GRID
   ========================================================================== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 60px 80px;
}

.page-header {
  margin-bottom: 60px;
}

.page-title {
  font-family: 'Oswald', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: -2px;
}

.page-subtitle {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--accent-color);
  margin-bottom: 5px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 30px;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }

/* ==========================================================================
   MODULES (CARDS, BADGES, LISTS)
   ========================================================================= */
.card-module {
  background-color: var(--card-bg-color);
  border: 1px solid var(--card-border-color);
  padding: 30px;
  transition: border-color 0.2s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.timeline-block .card-module {
  flex-direction: column;
}

.card-module.clickable {
  cursor: pointer;
}

.card-module.clickable:hover {
  border-color: #333;
  transform: translateY(-3px);
}

.card-module-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.card-icon {
  font-size: 2rem;
  color: var(--accent-color);
}

.card-kpi {
  text-align: right;
  font-family: 'Oswald', sans-serif;
}

.kpi-value {
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
}

.kpi-label {
  color: var(--secondary-text-color);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.card-title {
  font-family: 'Oswald', sans-serif;
  color: #fff;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 15px;
}

.cv-role {
  font-family: 'Oswald', sans-serif;
  color: #fff;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
}

.cv-date {
  font-family: 'Oswald', sans-serif;
  color: var(--accent-color);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
  display: block;
}

.timeline-block .card-module .cv-role,
.timeline-block .card-module .cv-date {
  float: none;
  display: block;
}

.cv-company {
  color: var(--secondary-text-color);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  display: block;
  margin-bottom: 15px;
}

.cv-blurb {
  font-size: 0.9rem;
  color: #ccc;
  margin-bottom: 15px;
}

.cv-list {
  color: var(--secondary-text-color);
  font-size: 0.85rem;
  padding-left: 15px;
}

.cv-list li {
  margin-bottom: 5px;
}

.card-text {
  font-size: 0.9rem;
  color: var(--secondary-text-color);
}

.tech-badge {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 0.7rem;
  color: #fff;
  background-color: #1a1a1a;
  padding: 5px 10px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-right: 5px;
  margin-bottom: 5px;
}

.section-title {
  font-family: 'Oswald', sans-serif;
  color: #fff;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom: 1px solid var(--card-border-color);
  padding-bottom: 10px;
  margin: 40px 0 20px 0;
}

.download-btn {
  font-family: 'Oswald', sans-serif;
  color: #fff;
  text-decoration: none;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  border: 1px solid var(--accent-color);
  padding: 10px 20px;
  display: inline-block;
}

.download-btn:hover {
  background-color: var(--accent-color);
}

/* ==========================================================================
   TIMELINE LAYOUT (EXPERIENCE PAGE)
   ========================================================================= */
.timeline-container {
  position: relative;
  width: 100%;
  margin: 0 auto;
}

.timeline-spine {
  position: absolute;
  width: 2px;
  background-color: var(--card-border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-block {
  position: relative;
  width: 70%; 
  clear: both;
}

.timeline-connector {
  position: absolute;
  top: 40px; 
  width: 30px; 
  height: 2px;
  background-color: var(--accent-color);
}

.timeline-block.left {
  float: left;
  left: 0;
  padding-right: 50px;
}

.timeline-block.left .timeline-connector {
  right: -30px; 
}

.timeline-block.right {
  float: right;
  right: 0;
  padding-left: 50px; 
}

.timeline-block.right .timeline-connector {
  left: -30px; 
}

/* ==========================================================================
   MODAL (DIALOGS)
   ========================================================================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(5px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}

.modal-overlay.modal-open {
  visibility: visible;
  opacity: 1;
}

.modal-content {
  background-color: var(--card-bg-color);
  border: 1px solid var(--card-border-color);
  width: 90%;
  max-width: 1000px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--secondary-text-color);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
}

.modal-close:hover {
  color: #fff;
}

.modal-hero {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-bottom: 1px solid var(--card-border-color);
}

.modal-body {
  padding: 50px;
}

.modal-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.modal-gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border: 1px solid var(--card-border-color);
  cursor: pointer;
}

/* Animations */
.slide-up { animation: slideUp 0.8s ease-out forwards; opacity: 0; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

@keyframes slideUp {
  0% { transform: translateY(30px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}