/* ============================================
   DESIGN TOKENS — Wilson Bogmis Portfolio
   Palette: Or, Bleu foncé, Noir, Rouge
   ============================================ */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Font families */
  --font-display: 'Clash Display', 'Arial Black', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* ===== CUSTOM PALETTE: Dark immersive ===== */
  /* Primary: Dark mode only — noir/bleu foncé base */
  --color-bg:              #0a0a0f;
  --color-surface:         #10111a;
  --color-surface-2:       #161825;
  --color-surface-offset:  #1a1c2e;
  --color-divider:         #252840;
  --color-border:          #2a2d4a;

  /* Text */
  --color-text:            #e8e6e3;
  --color-text-muted:      #8a8a9a;
  --color-text-faint:      #4e4e60;

  /* Gold (primary accent) */
  --color-gold:            #d4a853;
  --color-gold-hover:      #e6be6a;
  --color-gold-dim:        #a07830;

  /* Deep Blue */
  --color-blue:            #1a3a5c;
  --color-blue-light:      #2a5a8c;
  --color-blue-glow:       #3a7abd;

  /* Red (CTA accent) */
  --color-red:             #c0392b;
  --color-red-hover:       #e04030;
  --color-red-glow:        #ff5544;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 20px rgba(212, 168, 83, 0.15);
  --shadow-blue: 0 0 30px rgba(42, 90, 140, 0.2);
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

body {
  background: var(--color-bg);
  overflow-x: hidden;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-gold);
  color: var(--color-bg);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus {
  top: var(--space-4);
}

/* Container */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ============================================
   NAVIGATION
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(212, 168, 83, 0.08);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(212, 168, 83, 0.15);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: 0.02em;
}
.nav-logo svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
  padding: var(--space-1) 0;
  transition: color var(--transition-interactive);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  display: none;
  background: transparent;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-interactive);
}
@media (min-width: 768px) {
  .nav-cta { display: inline-flex; }
}
.nav-cta:hover {
  background: var(--color-gold);
  color: var(--color-bg);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: var(--space-2);
  cursor: pointer;
}
@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}
.mobile-menu-btn span {
  display: block;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}
.mobile-menu-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
  z-index: 49;
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}
.mobile-menu a {
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  transition: color var(--transition-interactive);
}
.mobile-menu a:hover {
  color: var(--color-gold);
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 64px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-red));
  z-index: 51;
  width: 0%;
  transition: width 50ms linear;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 64px;
}

/* Particle canvas */
#particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* Gradient overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 30% 50%, rgba(26, 58, 92, 0.3) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 70% 60%, rgba(192, 57, 43, 0.08) 0%, transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  text-align: center;
  padding: var(--space-8) var(--space-4);
}
@media (min-width: 768px) {
  .hero-content {
    flex-direction: row;
    text-align: left;
    gap: var(--space-16);
    max-width: var(--content-wide);
    margin-inline: auto;
    padding: var(--space-16) var(--space-8);
  }
}

/* Portrait */
.hero-portrait {
  position: relative;
  flex-shrink: 0;
}
.hero-portrait-img {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  border: 3px solid var(--color-gold);
  box-shadow: 0 0 40px rgba(212, 168, 83, 0.2), 0 0 80px rgba(26, 58, 92, 0.15);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}
@media (min-width: 768px) {
  .hero-portrait-img {
    width: 300px;
    height: 300px;
  }
}
.hero-portrait-img:hover {
  transform: scale(1.03);
  box-shadow: 0 0 60px rgba(212, 168, 83, 0.3), 0 0 100px rgba(26, 58, 92, 0.2);
}
/* Orbit ring around portrait */
.hero-portrait-ring {
  position: absolute;
  inset: -15px;
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: 50%;
  animation: orbit-spin 12s linear infinite;
}
.hero-portrait-ring::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 50%;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-gold);
}
@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

/* Hero text */
.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(212, 168, 83, 0.08);
  border: 1px solid rgba(212, 168, 83, 0.2);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-gold);
  width: fit-content;
  margin-inline: auto;
}
@media (min-width: 768px) {
  .hero-badge { margin-inline: 0; }
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-name {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
}
.hero-name .gold {
  color: var(--color-gold);
}

.hero-role {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  font-weight: 400;
}
.hero-role .typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--color-gold);
  margin-left: 2px;
  animation: blink-cursor 1s steps(1) infinite;
  vertical-align: text-bottom;
}
@keyframes blink-cursor {
  50% { opacity: 0; }
}

.hero-slogan {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 50ch;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}
@media (min-width: 768px) {
  .hero-buttons { justify-content: flex-start; }
}

/* Buttons global */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-interactive);
}
.btn-primary {
  background: var(--color-gold);
  color: var(--color-bg);
  border: none;
}
.btn-primary:hover {
  background: var(--color-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(212, 168, 83, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-red);
  color: var(--color-red);
  transform: translateY(-1px);
}
.btn-outline:active {
  transform: translateY(0);
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}
.scroll-mouse {
  width: 20px;
  height: 32px;
  border: 2px solid var(--color-text-faint);
  border-radius: 10px;
  position: relative;
}
.scroll-mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 3px;
  animation: scroll-wheel 2s ease-in-out infinite;
}
@keyframes scroll-wheel {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

/* ============================================
   SECTION COMMON
   ============================================ */

.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.section-label::before,
.section-label::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-gold);
  opacity: 0.4;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
}
.section-title .gold {
  color: var(--color-gold);
}

/* Fade-in animation */
.fade-in {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}
@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-grid {
  display: grid;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
  }
}

.about-bio h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.about-bio p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.about-bio .highlight {
  color: var(--color-gold);
  font-weight: 500;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid rgba(212, 168, 83, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition: border-color var(--transition-interactive);
}
.stat-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-gold);
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), var(--color-blue-light), var(--color-red));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}
.timeline-item:last-child {
  padding-bottom: 0;
}
.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-8) + 5px);
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-gold);
  box-shadow: 0 0 10px rgba(212, 168, 83, 0.3);
  z-index: 1;
}
.timeline-date {
  font-size: var(--text-xs);
  color: var(--color-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.timeline-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-1);
}
.timeline-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================
   BRANCHES / COMPETENCES SECTION
   ============================================ */

.branches-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .branches-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .branches-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.branch-card {
  position: relative;
  perspective: 1200px;
  border-radius: var(--radius-xl);
  cursor: pointer;
}

.branch-card-inner {
  position: relative;
  width: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}

.branch-card.flipped .branch-card-inner {
  transform: rotateY(180deg);
}

.branch-card-front,
.branch-card-back {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--space-6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
@media (min-width: 768px) {
  .branch-card-front,
  .branch-card-back {
    padding: var(--space-8);
  }
}

/* Front is in normal flow, back is absolute overlay */
.branch-card-front {
  position: relative;
}
.branch-card-back {
  position: absolute;
  inset: 0;
}

.branch-card-front {
  background: var(--color-surface);
  z-index: 2;
  transition: box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
}

.branch-card:not(.flipped):hover .branch-card-front {
  box-shadow: var(--shadow-lg);
}

/* Glow overlay on front face */
.branch-card-front::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
  border-radius: var(--radius-xl);
}
.branch-card:not(.flipped):hover .branch-card-front::before {
  opacity: 1;
}

.branch-card-back {
  background: var(--color-surface-2);
  transform: rotateY(180deg);
  z-index: 1;
  justify-content: center;
  align-items: center;
  text-align: center;
  border-color: rgba(212, 168, 83, 0.2);
  box-shadow: 0 0 40px rgba(212, 168, 83, 0.08) inset;
}

/* Shimmer line on back face */
.branch-card-back::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212, 168, 83, 0.06), transparent);
  animation: back-shimmer 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes back-shimmer {
  0% { left: -60%; }
  100% { left: 120%; }
}

.branch-back-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(212, 168, 83, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  margin-bottom: var(--space-5);
}

.branch-back-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.branch-back-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 38ch;
}

/* Flip hint on both faces */
.branch-flip-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  transition: color 0.3s var(--ease-out);
}
.branch-card:hover .branch-flip-hint {
  color: var(--color-gold-dim);
}

/* Branch-specific colors */
.branch-card[data-branch="web"] .branch-card-front::before {
  background: radial-gradient(circle at 80% 20%, rgba(42, 90, 140, 0.15) 0%, transparent 60%);
}
.branch-card[data-branch="web"]:not(.flipped):hover .branch-card-front {
  border-color: rgba(42, 90, 140, 0.3);
}

.branch-card[data-branch="mobile"] .branch-card-front::before {
  background: radial-gradient(circle at 80% 20%, rgba(212, 168, 83, 0.1) 0%, transparent 60%);
}
.branch-card[data-branch="mobile"]:not(.flipped):hover .branch-card-front {
  border-color: rgba(212, 168, 83, 0.3);
}

.branch-card[data-branch="it"] .branch-card-front::before {
  background: radial-gradient(circle at 80% 20%, rgba(192, 57, 43, 0.12) 0%, transparent 60%);
}
.branch-card[data-branch="it"]:not(.flipped):hover .branch-card-front {
  border-color: rgba(192, 57, 43, 0.3);
}

.branch-card[data-branch="creative"] .branch-card-front::before {
  background: radial-gradient(circle at 80% 20%, rgba(120, 80, 200, 0.12) 0%, transparent 60%);
}
.branch-card[data-branch="creative"]:not(.flipped):hover .branch-card-front {
  border-color: rgba(120, 80, 200, 0.3);
}

.branch-card[data-branch="consulting"] .branch-card-front::before {
  background: radial-gradient(circle at 80% 20%, rgba(46, 204, 113, 0.1) 0%, transparent 60%);
}
.branch-card[data-branch="consulting"]:not(.flipped):hover .branch-card-front {
  border-color: rgba(46, 204, 113, 0.3);
}

.branch-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}
.branch-card[data-branch="web"] .branch-icon {
  background: rgba(42, 90, 140, 0.15);
  color: var(--color-blue-glow);
}
.branch-card[data-branch="mobile"] .branch-icon {
  background: rgba(212, 168, 83, 0.15);
  color: var(--color-gold);
}
.branch-card[data-branch="it"] .branch-icon {
  background: rgba(192, 57, 43, 0.15);
  color: var(--color-red-hover);
}
.branch-card[data-branch="creative"] .branch-icon {
  background: rgba(120, 80, 200, 0.15);
  color: #a06fe0;
}
.branch-card[data-branch="consulting"] .branch-icon {
  background: rgba(46, 204, 113, 0.15);
  color: #2ecc71;
}

.branch-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.branch-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.branch-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-text-muted);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all var(--transition-interactive);
}
.filter-btn:hover {
  color: var(--color-gold);
  border-color: rgba(212, 168, 83, 0.3);
}
.filter-btn.active {
  background: rgba(212, 168, 83, 0.12);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.projects-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 640px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  position: relative;
  perspective: 1200px;
  border-radius: var(--radius-xl);
  cursor: pointer;
}

.project-card-inner {
  position: relative;
  width: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}
.project-card.flipped .project-card-inner {
  transform: rotateY(180deg);
}

.project-card-front {
  position: relative;
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: box-shadow 0.4s var(--ease-out), border-color 0.3s var(--ease-out);
}
.project-card:not(.flipped):hover .project-card-front {
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 83, 0.15);
}

.project-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: rotateY(180deg);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(212, 168, 83, 0.2);
  background: var(--color-surface-2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Back face content: scrollable text area */
.project-back-content {
  flex: 1;
  padding: var(--space-6);
  overflow-y: auto;
  /* Modern scrollbar */
  scrollbar-width: thin;
  scrollbar-color: rgba(212, 168, 83, 0.3) transparent;
}
.project-back-content::-webkit-scrollbar {
  width: 4px;
}
.project-back-content::-webkit-scrollbar-track {
  background: transparent;
}
.project-back-content::-webkit-scrollbar-thumb {
  background: rgba(212, 168, 83, 0.3);
  border-radius: 4px;
}
.project-back-content::-webkit-scrollbar-thumb:hover {
  background: rgba(212, 168, 83, 0.5);
}

.project-back-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* Back face footer: logo left + name + flip hint right */
.project-back-footer {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.project-back-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: #fff;
}
.project-back-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
}
/* Icon-based logos (no image) */
.project-back-logo--icon {
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-back-logo--icon[data-branch="web"]  { color: var(--color-blue-glow); }
.project-back-logo--icon[data-branch="it"]   { color: var(--color-red-hover); }
.project-back-logo--icon[data-branch="consulting"] { color: #2ecc71; }
.project-back-logo--icon[data-branch="creative"]   { color: #a06fe0; }

.project-back-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.project-back-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.project-back-cat {
  font-size: var(--text-xs);
  color: var(--color-gold);
  font-weight: 500;
}

/* Flip hints on project cards */
.project-flip-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: 0.7rem;
  color: var(--color-text-faint);
  transition: color 0.3s var(--ease-out);
}
.project-card:hover .project-flip-hint {
  color: var(--color-gold-dim);
}
.project-back-footer .project-flip-hint {
  margin-left: auto;
  padding: 0;
  flex-shrink: 0;
}

.project-visual {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.project-visual-bg {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.project-visual-bg[data-branch="web"] {
  background: linear-gradient(135deg, var(--color-blue), #1a2d4c);
}
.project-visual-bg[data-branch="mobile"] {
  background: linear-gradient(135deg, #2a1f0a, #3d2e14);
}
.project-visual-bg[data-branch="it"] {
  background: linear-gradient(135deg, #2a0f0a, #3d1a14);
}
.project-visual-bg[data-branch="creative"] {
  background: linear-gradient(135deg, #1a102a, #2d1a3d);
}
.project-visual-bg[data-branch="consulting"] {
  background: linear-gradient(135deg, #0a2a1a, #143d24);
}

.project-body {
  padding: var(--space-5);
}
.project-category {
  font-size: var(--text-xs);
  color: var(--color-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}
.project-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.project-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}
.project-stack .tech-tag {
  font-size: 0.7rem;
}
.project-links {
  display: flex;
  gap: var(--space-3);
}
.project-links a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: color var(--transition-interactive);
}
.project-links a:hover {
  color: var(--color-gold);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  color: var(--color-text);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  transition: all var(--transition-interactive);
}
.contact-link:hover {
  border-color: rgba(212, 168, 83, 0.2);
  transform: translateX(4px);
}
.contact-link-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(212, 168, 83, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  flex-shrink: 0;
}
.contact-link-text {
  font-size: var(--text-sm);
  font-weight: 500;
}
.contact-link-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Contact links full layout (no form) */
.contact-links-full {
  max-width: 720px;
  margin-inline: auto;
}

.contact-intro {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-8);
  max-width: 50ch;
  margin-inline: auto;
}

.contact-links-grid {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 640px) {
  .contact-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .contact-links-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: var(--space-8) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}
@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-text a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-text a:hover {
  color: var(--color-gold);
}

.footer-links {
  display: flex;
  gap: var(--space-4);
}
.footer-links a {
  color: var(--color-text-faint);
  text-decoration: none;
  font-size: var(--text-xs);
  transition: color var(--transition-interactive);
}
.footer-links a:hover {
  color: var(--color-gold);
}

/* ============================================
   DECORATIVE ELEMENTS
   ============================================ */

/* Glowing line separators */
.glow-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0.2;
}

/* Section background ambient glows */
.section-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   CLICKABLE TECH TAGS
   ============================================ */

.tech-tag--clickable {
  cursor: pointer;
  position: relative;
  transition: all 0.25s var(--ease-out);
}
.tech-tag--clickable:hover {
  background: rgba(212, 168, 83, 0.12);
  border-color: rgba(212, 168, 83, 0.35);
  color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 168, 83, 0.15);
}
.tech-tag--clickable:active {
  transform: translateY(0) scale(0.96);
}
/* Pulse dot indicator */
.tech-tag--clickable::after {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0;
  transition: opacity 0.25s;
}
.tech-tag--clickable:hover::after {
  opacity: 1;
}

/* Idle nudge animation — triggered by JS at random intervals */
@keyframes tech-nudge {
  0%   { transform: translateY(0); }
  15%  { transform: translateY(-5px) scale(1.06); box-shadow: 0 6px 16px rgba(212, 168, 83, 0.2); }
  30%  { transform: translateY(1px) scale(0.98); }
  45%  { transform: translateY(-2px) scale(1.02); }
  60%  { transform: translateY(0) scale(1); box-shadow: none; }
  100% { transform: translateY(0) scale(1); }
}
.tech-tag--clickable.nudge {
  animation: tech-nudge 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
  border-color: rgba(212, 168, 83, 0.3);
  color: var(--color-gold);
}

/* ============================================
   TECH ANECDOTE MODAL
   ============================================ */

.tech-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-out);
}
.tech-modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.tech-modal {
  position: relative;
  background: var(--color-surface-2);
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  max-width: 440px;
  width: 100%;
  text-align: center;
  transform: perspective(800px) rotateX(15deg) scale(0.9);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s var(--ease-out);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 40px rgba(212, 168, 83, 0.08) inset;
}
@media (min-width: 768px) {
  .tech-modal {
    padding: var(--space-10) var(--space-8);
  }
}
.tech-modal-overlay.open .tech-modal {
  transform: perspective(800px) rotateX(0deg) scale(1);
  opacity: 1;
}

.tech-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.2s;
}
.tech-modal-close:hover {
  color: var(--color-gold);
  background: rgba(212, 168, 83, 0.15);
}

.tech-modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(212, 168, 83, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  margin: 0 auto var(--space-5);
}

.tech-modal-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.tech-modal-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 40ch;
  margin-inline: auto;
}