/* ══════════════════════════════════════
   THEME VARIABLES
══════════════════════════════════════ */
:root[data-theme="dark"] {
  --bg:       #0d1117;
  --bg2:      #090d13;
  --surface:  #161b22;
  --card:     #1a2332;
  --border:   #21303f;
  --border-subtle: #1c2836;
  --border-strong: #2d3d4f;
  --accent:   #58a6ff;
  --accent2:  #7b61ff;
  --green:    #3fb950;
  --text:     #e6edf3;
  --heading:  #e6edf3;
  --muted:    #8b9bab;
  --danger:   #f85149;
  --shadow:   0 4px 32px rgba(0,0,0,0.5);
  --skill-text: #d0d7de;
  --skill-chip-bg: rgba(255, 255, 255, 0.05);
  --skill-chip-border: rgba(255, 255, 255, 0.12);
  --skill-item-bg: rgba(255, 255, 255, 0.03);
  --skill-item-border: rgba(255, 255, 255, 0.08);
  --skill-item-hover-bg: rgba(255, 255, 255, 0.07);
  --divider: rgba(255, 255, 255, 0.1);
  --accent-soft-bg: rgba(88, 166, 255, 0.12);
  --accent-soft-border: rgba(88, 166, 255, 0.22);
  --accent-hover-bg: rgba(88, 166, 255, 0.08);
  --accent-focus-ring: rgba(88, 166, 255, 0.15);
  --nav-hover-bg: rgba(88, 166, 255, 0.08);
  --green-soft-bg: rgba(63, 185, 80, 0.08);
  --green-soft-border: rgba(63, 185, 80, 0.2);
  --overlay-bg: rgba(0, 0, 0, 0.65);
  --card-hover-shadow: rgba(88, 166, 255, 0.1);
}
:root[data-theme="light"] {
  --bg:       #eef1f5;
  --bg2:      #ffffff;
  --surface:  #f6f8fa;
  --card:     #ffffff;
  --border:   #b0bac4;
  --border-subtle: #c5cdd5;
  --border-strong: #959dab;
  --accent:   #0969da;
  --accent2:  #5a45d6;
  --green:    #1a7f37;
  --text:     #1f2328;
  --heading:  #11161d;
  --muted:    #4a5561;
  --danger:   #cf222e;
  --shadow:   0 4px 24px rgba(27, 31, 36, 0.08);
  --skill-text: #2d3640;
  --skill-chip-bg: #eef1f5;
  --skill-chip-border: #c5cdd5;
  --skill-item-bg: #f3f5f8;
  --skill-item-border: #c5cdd5;
  --skill-item-hover-bg: #e8ecf1;
  --divider: #c5cdd5;
  --accent-soft-bg: rgba(9, 105, 218, 0.1);
  --accent-soft-border: rgba(9, 105, 218, 0.24);
  --accent-hover-bg: rgba(9, 105, 218, 0.06);
  --accent-focus-ring: rgba(9, 105, 218, 0.18);
  --nav-hover-bg: rgba(9, 105, 218, 0.08);
  --green-soft-bg: rgba(26, 127, 55, 0.08);
  --green-soft-border: rgba(26, 127, 55, 0.22);
  --overlay-bg: rgba(15, 23, 42, 0.55);
  --card-hover-shadow: rgba(9, 105, 218, 0.14);
}

/* ══════════════════════════════════════
   BASE
══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  transition: background-color 0.3s, color 0.3s;
}
.font-mono { font-family: 'JetBrains Mono', monospace; }
.text-accent { color: var(--accent) !important; }
.text-muted  { color: var(--muted) !important; }

/* ══════════════════════════════════════
   LOADER
══════════════════════════════════════ */
#page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.4s ease;
}
#page-loader.hidden { opacity: 0; pointer-events: none; }
.loader-ring {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ══════════════════════════════════════
   NAVBAR
══════════════════════════════════════ */
#mainNav {
  background: var(--bg2);
  border-bottom: 1px solid var(--border-strong);
  padding: 0.75rem 0;
  transition: background 0.3s;
}
.navbar-brand {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text) !important;
  letter-spacing: -0.02em;
}
.nav-link {
  color: var(--muted) !important;
  font-size: 0.9rem;
  padding: 0.4rem 0.8rem !important;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent) !important;
  background: var(--nav-hover-bg);
}
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 8px;
  width: 36px; height: 36px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
  font-size: 0.9rem;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

.nav-menu-toggler {
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.4rem 0.55rem;
  transition: border-color 0.2s, color 0.2s;
}
.nav-menu-toggler:hover,
.nav-menu-toggler:focus {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: none;
}
.nav-menu-toggler:focus-visible {
  box-shadow: 0 0 0 0.2rem var(--accent-focus-ring);
}
.nav-toggler-icon {
  display: none;
  font-size: 1.15rem;
  line-height: 1;
  width: 1.25rem;
  text-align: center;
}
.nav-menu-toggler.collapsed .nav-toggler-icon--open {
  display: inline-block;
}
.nav-menu-toggler:not(.collapsed) .nav-toggler-icon--close {
  display: inline-block;
}

/* ══════════════════════════════════════
   DIVIDERS
══════════════════════════════════════ */
.section-divider {
  border: none;
  border-top: 1px solid var(--border-strong);
  margin: 0;
  opacity: 1;
}
.section-padding { padding: 5rem 0; }
.section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--heading);
}
.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ══════════════════════════════════════
   HERO
══════════════════════════════════════ */
.hero-section { background: var(--bg2); padding: 4rem 0; }
.hero-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  min-height: 1.2em;
}
.typing-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.profile-wrapper {
  width: 200px; height: 200px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border-strong);
  position: relative;
  background: var(--card);
  display: flex; align-items: center; justify-content: center;
}
.profile-img { width: 100%; height: 100%; object-fit: cover; }
.profile-placeholder {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--muted); text-align: center; padding: 1rem;
  width: 100%; height: 100%;
}

/* ══════════════════════════════════════
   BUTTONS / SOCIAL
══════════════════════════════════════ */
.btn-primary-custom {
  background: var(--accent);
  color: #fff; border: none;
  border-radius: 8px; font-weight: 600;
  font-size: 0.88rem;
  transition: all 0.2s;
}
.btn-primary-custom:hover {
  background: var(--accent2); color: #fff;
  transform: translateY(-2px);
}
.btn-outline-custom {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 8px; font-size: 0.88rem;
  transition: all 0.2s;
}
.btn-outline-custom:hover {
  border-color: var(--accent); color: var(--accent);
  background: var(--accent-hover-bg);
}
.social-icon {
  color: var(--muted); font-size: 1.1rem;
  text-decoration: none;
  transition: color 0.2s, transform 0.2s;
}
.social-icon:hover { color: var(--accent); transform: translateY(-3px); }

/* ══════════════════════════════════════
   QUOTE
══════════════════════════════════════ */
.quote-section { background: var(--bg); }
.fintech-quote {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
  max-width: 700px;
}
.fintech-quote p {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  color: var(--skill-text);
  font-style: italic;
}

/* ══════════════════════════════════════
   PROJECT CARDS
══════════════════════════════════════ */
.col-lg-2-4 { flex: 0 0 20%; max-width: 20%; }

/* Homepage featured grid: 3 cards on phone/tablet, 5 on desktop */
@media (max-width: 991.98px) {
  #projects-preview .featured-project-card:nth-child(n + 4) {
    display: none !important;
  }
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: 12px; overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--card-hover-shadow);
}
.project-card-placeholder {
  background: var(--card);
  border: 2px dashed var(--border);
  border-radius: 12px;
  aspect-ratio: 3/4;
  display: flex; align-items: center; justify-content: center;
}
.project-thumb { position: relative; overflow: hidden; aspect-ratio: 4/3; }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.project-card:hover .project-thumb img { transform: scale(1.05); }
.project-overlay {
  position: absolute; inset: 0;
  background: var(--overlay-bg);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s;
}
.project-card:hover .project-overlay { opacity: 1; }
.badge-category {
  background: var(--accent-soft-bg);
  color: var(--accent);
  border: 1px solid var(--accent-soft-border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.25em 0.6em; border-radius: 4px;
}

/* ══════════════════════════════════════
   ABOUT
══════════════════════════════════════ */
.about-info-card {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.about-list { list-style: none; padding: 0; }
.about-list li {
  display: flex; justify-content: space-between;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--divider);
  font-size: 0.9rem;
  color: var(--text);
}
.about-list li:last-child { border-bottom: none; }
.about-label { color: var(--muted); font-weight: 500; }

.skills-icons-grid {
  display: flex; flex-wrap: wrap; gap: 1rem;
}
.skill-icon-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 0.35rem;
  font-size: 0.7rem; color: var(--skill-text);
  transition: color 0.2s, transform 0.2s;
  cursor: default;
}
.skill-icon-item i { font-size: 2rem; }
.skill-icon-item:hover { color: var(--danger); transform: translateY(-3px); }

/* ══════════════════════════════════════
   CONTACT PAGE
══════════════════════════════════════ */
.contact-info-card, .contact-form-card {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
}
.contact-icon {
  width: 42px; height: 42px; min-width: 42px;
  background: var(--accent-soft-bg);
  border: 1px solid var(--accent-soft-border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.status-badge {
  background: var(--green-soft-bg);
  border: 1px solid var(--green-soft-border);
  border-radius: 10px;
}
.status-dot {
  display: inline-block; width: 8px; height: 8px;
  border-radius: 50%; background: var(--green);
  margin-right: 8px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100%{ box-shadow: 0 0 0 0 rgba(63,185,80,0.4); }
  50%    { box-shadow: 0 0 0 6px rgba(63,185,80,0); }
}
.contact-form-card .form-control,
.contact-form-card .form-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text); border-radius: 8px;
  padding: 0.75rem 1rem; transition: border-color 0.2s;
}
.contact-form-card .form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-focus-ring);
  background: var(--surface); color: var(--text);
}
.contact-form-card label { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.35rem; }

/* ══════════════════════════════════════
   FILTER BUTTONS (projects page)
══════════════════════════════════════ */
.filter-btn {
  background: var(--card); border: 1px solid var(--border-strong);
  color: var(--text); border-radius: 8px;
  font-size: 0.85rem; padding: 0.45rem 1.1rem;
  transition: all 0.2s; cursor: pointer;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.badge-tech {
  background: var(--surface); color: var(--text);
  font-size: 0.68rem; border: 1px solid var(--border-strong);
  border-radius: 4px; padding: 0.2em 0.55em;
}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
.footer { background: var(--bg2); border-top: 1px solid var(--border-strong); }

/* ══════════════════════════════════════
   BACK TO TOP
══════════════════════════════════════ */
.back-to-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 999;
  width: 40px; height: 40px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(10px);
  transition: all 0.3s; cursor: pointer;
  box-shadow: 0 4px 16px var(--card-hover-shadow);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--accent2); }

/* ══════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 768px) {
  .section-padding { padding: 3rem 0; }
  .col-lg-2-4 { flex: 0 0 50%; max-width: 50%; }
  .profile-wrapper { width: 150px; height: 150px; }
}
@media (max-width: 480px) {
  .col-lg-2-4 { flex: 0 0 100%; max-width: 100%; }
}

/* ══════════════════════════════════════
   MY GALLERY CAROUSEL
══════════════════════════════════════ */
/* ══════════════════════════════════════
   MY GALLERY CAROUSEL
══════════════════════════════════════ */
.gallery-section { background: var(--bg2); }

.slider {
  position: relative;
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  margin: 0 auto;
}

.slides {
  display: flex;
  height: 100%;
  transition: transform 0.4s ease-in-out;
}

.slide-item {
  height: 100%;
  flex-shrink: 0;
  position: relative;
}

.slide-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
}

.slide-link {
  display: contents;
  text-decoration: none;
}

/* Caption overlay */
.slide-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.4) 55%, transparent 100%);
  padding: 3rem 1rem 0.75rem;
  z-index: 5;
}

/* Meta row */
.slide-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
}

.slide-source {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.8);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.slide-time {
  font-size: 0.68rem;
  color: rgba(255,255,255,0.55);
}

.slide-time::before {
  content: '·';
  margin-right: 0.35rem;
}

.slide-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.5rem 0;
  line-height: 1.4;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  max-width: 85%;
}

/* Like/Dislike */
.slide-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-bottom: 0.5rem;
  position: relative;
  z-index: 6;
}

.like-btn {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.85);
  border-radius: 20px;
  padding: 0.2rem 0.65rem;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  position: relative;
  z-index: 6;
}

.like-btn:hover { background: rgba(255,255,255,0.22); color: #fff; }
.like-btn.liked { background: rgba(88,166,255,0.25); border-color: rgba(88,166,255,0.6); color: #7ec8ff; }
.like-btn.disliked { background: rgba(255,100,100,0.2); border-color: rgba(255,100,100,0.5); color: #ff8a8a; }

.like-count { font-size: 0.75rem; font-weight: 600; }

/* Nav arrows */
.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
  background: rgba(85, 83, 83, 0.18);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  width: 32px;
  height: 62px;
  border-radius: 6px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all ease 0.2s;
  backdrop-filter: blur(8px);
}

.nav-btn:hover {
  background: rgba(87, 85, 85, 0.32);
  box-shadow: 0px 0px 4px 2px rgb(233, 232, 232);
  transform: translateY(-50%);
}

.nav-btn.prev { left: 10px; }
.nav-btn.next { right: 10px; }

/* Dots — bottom center, dash style */
.dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  z-index: 10;
}

.dot {
  width: 20px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.35);
  border: none;
  cursor: pointer;
  transition: background 0.3s, width 0.3s;
  padding: 0;
}

.dot.active {
  background: #fff;
  width: 32px;
}
/* Skills card sections */
.skill-section-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--divider);
  padding-bottom: 0.5rem;
}

.skill-section-title {
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--heading);
}

.skill-category-label {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 600;
  display: block;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--skill-chip-bg);
  border: 1px solid var(--skill-chip-border);
  color: var(--skill-text);
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.skill-badge:hover {
  border-color: var(--accent);
  color: var(--danger);
  background: var(--skill-item-hover-bg);
}

.it-skill-item {
  display: flex;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--skill-text);
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  background: var(--skill-item-bg);
  border: 1px solid var(--skill-item-border);
  transition: background-color 0.2s, border-color 0.2s;
}

.it-skill-item:hover {
  background: var(--skill-item-hover-bg);
  border-color: var(--border-strong);
}

/* Dividers */
.skill-divider-vertical {
  width: 1px;
  background: var(--divider);
  height: 100%;
}

.skill-divider-horizontal {
  border-color: var(--divider);
  margin: 0.5rem 0;
  opacity: 1;
}