/* ─── CATEGORY FILTERS ─── */
.projects-filter {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.3s;
}

.filter-btn {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 0.55rem 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  text-transform: uppercase;
}

.filter-btn:hover {
  background: rgba(124, 109, 250, 0.05);
  border-color: rgba(124, 109, 250, 0.5);
  color: var(--text);
  transform: translateY(-1px);
}

.filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 15px rgba(124, 109, 250, 0.3);
}

/* ─── DYNAMIC PROJECTS GRID OVERRIDES ─── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem !important; /* Switch to modern gaps instead of pixel line grid */
  background: transparent !important; /* Remove old border background */
  border: none !important;
  border-radius: 0 !important;
  overflow: visible !important;
}

/* ─── PROJECT CARD REFINEMENT ─── */
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, filter 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  cursor: pointer;
  transform-style: preserve-3d;
}

/* Dynamic Card Glare Reflection */
.project-card-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2; /* above banner/images but below text interactions */
  background: radial-gradient(circle at top right, rgba(124, 109, 250, 0.12), transparent 70%);
  transition: opacity 0.4s ease, background 0.08s ease-out;
}

.project-card-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  z-index: 0;
  transition: opacity 0.4s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 109, 250, 0.4);
  box-shadow: 0 12px 30px rgba(10, 10, 15, 0.5), 0 0 2px rgba(124, 109, 250, 0.3);
  background: #151525;
}

.project-card:hover .project-card-image {
  opacity: 0.25;
  transform: scale(1.05);
}

.project-card::before {
  display: none !important; /* Hide old sliding stripe */
}

/* Card hover colored stripe at bottom */
.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover::after {
  transform: scaleX(1);
}

.project-card .project-title {
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
  font-size: 1.3rem;
  transition: color 0.3s;
}

.project-card:hover .project-title {
  color: #fff;
}

.project-card .project-desc {
  flex-grow: 1;
  margin-bottom: 1.5rem;
  font-family: var(--sans);
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.6;
}

.project-card .project-tags {
  margin-bottom: 1.5rem;
}

/* Read Details Hint Link */
.project-more-hint {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: auto;
  opacity: 0.95;
  transition: all 0.3s;
  transform: translateX(0);
}

.project-card:hover .project-more-hint {
  opacity: 1;
  transform: translateX(4px);
}

.project-more-hint svg {
  transition: transform 0.3s;
}

.project-card:hover .project-more-hint svg {
  transform: translate(2px, -2px);
}

/* Placeholder card for adding projects */
.next-placeholder {
  border: 1px dashed rgba(124, 109, 250, 0.3) !important;
  background: rgba(10, 10, 15, 0.3) !important;
  justify-content: center !important;
  align-items: center !important;
  text-align: center;
  transition: border-style 0.3s, border-color 0.3s, background 0.3s !important;
}

.next-placeholder:hover {
  border-style: solid !important;
  border-color: var(--accent) !important;
  background: rgba(124, 109, 250, 0.04) !important;
}

.next-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.next-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
}

.next-icon {
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  line-height: 1;
  transition: transform 0.3s, color 0.3s;
}

.next-placeholder:hover .next-icon {
  transform: rotate(90deg) scale(1.1);
  color: var(--accent);
}

.next-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.3s;
}

.next-placeholder:hover .next-text {
  color: var(--text);
}

/* ─── OVERLAY MODAL ─── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 1.5rem;
}

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

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 8, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.modal-content {
  position: relative;
  z-index: 210;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8);
  transform: scale(0.94) translateY(10px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.modal.active .modal-content {
  transform: scale(1) translateY(0);
}

/* Custom Scrollbar for Modal content */
.modal-content::-webkit-scrollbar {
  width: 6px;
}
.modal-content::-webkit-scrollbar-track {
  background: transparent;
}
.modal-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
}
.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}

/* Close Button */
.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(10, 10, 15, 0.6);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1.5rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 230;
  transition: all 0.2s;
  line-height: 1;
  padding-bottom: 2px;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

/* Modal Banner Header */
.modal-banner {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.modal-banner-fallback {
  width: 100%;
  height: 100%;
  background: #0f0f18;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 2rem;
}

.modal-banner-glow {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 109, 250, 0.25) 0%, transparent 70%);
  filter: blur(10px);
}

.modal-banner-glow2 {
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 108, 255, 0.15) 0%, transparent 70%);
  filter: blur(10px);
}

.modal-banner-title {
  font-size: 1.8rem;
  font-weight: 800;
  text-align: center;
  z-index: 2;
  background: linear-gradient(135deg, #fff 30%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  max-width: 80%;
  line-height: 1.25;
}

/* Modal Info Body */
.modal-info {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.modal-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-top: -0.5rem;
}

.modal-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.modal-body-desc {
  font-family: var(--sans);
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  font-weight: 300;
}

.modal-body-desc p {
  margin-bottom: 1.2rem;
}

.modal-body-desc p:last-child {
  margin-bottom: 0;
}

.modal-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.modal-links .btn {
  padding: 0.8rem 2rem;
}

/* Prevent body scrolling when modal is active */
body.modal-open {
  overflow: hidden;
  padding-right: 6px; /* Avoid layout shifts on scrollbar lock */
}

/* ─── RESPONSIVE STYLES ─── */
@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem !important;
  }
  
  .project-card {
    padding: 2rem;
    min-height: auto;
  }
  
  .modal-info {
    padding: 2rem 1.5rem;
  }
  
  .modal-title {
    font-size: 1.6rem;
  }
  
  .modal-links .btn {
    width: 100%;
    text-align: center;
  }
}

/* ─── CV & RESUME STYLES ─── */
.nav-links a.nav-cv {
  color: var(--accent) !important;
  border: 1px solid rgba(124, 109, 250, 0.3);
  padding: 0.35rem 0.8rem !important;
  border-radius: 4px;
  background: rgba(124, 109, 250, 0.03);
}

.nav-links a.nav-cv:hover {
  background: var(--accent-dim) !important;
  border-color: var(--accent);
  color: var(--text) !important;
  box-shadow: 0 0 10px rgba(124, 109, 250, 0.2);
}

.btn-cv-highlight {
  border-color: var(--accent) !important;
  color: var(--text) !important;
}

.btn-cv-highlight:hover {
  background: rgba(124, 109, 250, 0.08) !important;
  box-shadow: 0 0 15px rgba(124, 109, 250, 0.15);
}

.cv-link-highlight {
  border-color: var(--accent) !important;
  color: var(--text) !important;
  background: rgba(124, 109, 250, 0.03);
}

.cv-link-highlight:hover {
  background: rgba(124, 109, 250, 0.08) !important;
  box-shadow: 0 0 10px rgba(124, 109, 250, 0.15);
}

/* ─── SCROLL PROGRESS BAR ─── */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  box-shadow: 0 0 8px var(--accent);
  z-index: 101;
  transition: width 0.1s ease-out;
}

/* ─── INTERACTIVE CURSOR GLOW ─── */
.cursor-glow {
  position: fixed;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(124, 109, 250, 0.05) 0%, rgba(224, 108, 255, 0.01) 50%, transparent 70%);
  pointer-events: none;
  z-index: 9; /* Above normal section content, below nav (100) and modal (200) */
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}

/* ─── THEME TOGGLE BUTTON STYLES ─── */
.theme-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem;
  border-radius: 50%;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  margin-left: 0.5rem;
  border: 1px solid transparent;
}

.theme-toggle:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border);
  transform: rotate(15deg);
}

body.light-theme .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: var(--border);
}

.sun-icon { display: none; }
.moon-icon { display: block; }

body.light-theme .sun-icon { display: block; }
body.light-theme .moon-icon { display: none; }

/* ─── LIGHT THEME OVERRIDES ─── */
body.light-theme {
  --bg: #f4f4f7;
  --bg2: #ffffff;
  --surface: #ededf2;
  --border: #d5d5df;
  --text: #14141c;
  --text-muted: #575775;
  --text-dim: #8c8cab;
  --accent: #5e4deb;
  --accent2: #d946ef;
  --accent-dim: rgba(94, 77, 235, 0.08);
}

body.light-theme nav {
  background: rgba(255, 255, 255, 0.85);
  border-bottom-color: var(--border);
}

body.light-theme::before {
  opacity: 0.02; /* softer noise for light theme */
}

body.light-theme .project-card:hover {
  background: #fdfdff;
  border-color: rgba(94, 77, 235, 0.4);
  box-shadow: 0 12px 30px rgba(94, 77, 235, 0.08), 0 0 2px rgba(94, 77, 235, 0.15);
}

body.light-theme .project-card:hover .project-title {
  color: var(--text) !important;
}

body.light-theme .project-card-glow {
  background: radial-gradient(circle at top right, rgba(94, 77, 235, 0.06), transparent 70%) !important;
}

body.light-theme .cursor-glow {
  background: radial-gradient(circle, rgba(94, 77, 235, 0.03) 0%, transparent 70%);
  mix-blend-mode: multiply; /* use multiply for light theme mouse tracking shadow/glow */
}

body.light-theme .modal-overlay {
  background: rgba(15, 15, 20, 0.65); /* slightly lighter overlay backdrop */
}

/* ─── INTERACTIVE SKILLS CONNECTOR STYLES ─── */
.project-card.project-highlight {
  border-color: var(--accent) !important;
  box-shadow: 0 12px 30px rgba(124, 109, 250, 0.15), 0 0 10px rgba(124, 109, 250, 0.25) !important;
  transform: translateY(-8px) scale(1.02) !important;
  background: rgba(21, 21, 37, 0.95) !important;
}

body.light-theme .project-card.project-highlight {
  background: #ffffff !important;
  box-shadow: 0 12px 30px rgba(94, 77, 235, 0.15), 0 0 10px rgba(94, 77, 235, 0.2) !important;
}

.project-card.project-dim {
  opacity: 0.18 !important;
  filter: blur(1.5px) grayscale(50%) !important;
  transform: scale(0.97) !important;
  pointer-events: none !important;
}

/* Interactive hover visuals on badges */
.skill-item, .course-tag {
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, border-color 0.2s;
}

.skill-item:hover, .course-tag:hover {
  transform: scale(1.05);
  border-color: var(--accent) !important;
  color: var(--text) !important;
}

/* ─── CONTACT SECTION GRID & FORM ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 2rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info .contact-subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-muted);
  text-align: left;
}

.contact-info .contact-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.contact-info .contact-link {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all 0.2s;
  width: 100%;
  max-width: 320px;
  text-align: center;
}

.contact-form-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: background 0.3s, border-color 0.3s;
}

body.light-theme .contact-form-container {
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(94, 77, 235, 0.05);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

.form-group label {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

body.light-theme .form-group label {
  color: #1a202c;
}

.form-group input,
.form-group textarea {
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  outline: none;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  width: 100%;
}

body.light-theme .form-group input,
body.light-theme .form-group textarea {
  background: #fdfdff;
  border-color: #d2d2db;
  color: #1a202c;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(124, 109, 250, 0.04);
  box-shadow: 0 0 10px rgba(124, 109, 250, 0.15);
}

body.light-theme .form-group input:focus,
body.light-theme .form-group textarea:focus {
  background: #ffffff;
  box-shadow: 0 0 10px rgba(94, 77, 235, 0.12);
}

.form-group textarea {
  height: 140px;
  resize: vertical;
}

.char-counter {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: left;
  margin-top: 0.25rem;
}

.btn-submit {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  margin-top: 0.5rem;
  box-shadow: 0 4px 15px rgba(124, 109, 250, 0.2);
  width: 100%;
}

.btn-submit:hover {
  background: transparent;
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124, 109, 250, 0.3);
}

body.light-theme .btn-submit {
  box-shadow: 0 4px 15px rgba(94, 77, 235, 0.2);
}

body.light-theme .btn-submit:hover {
  color: var(--accent);
  background: rgba(94, 77, 235, 0.04);
  box-shadow: 0 6px 20px rgba(94, 77, 235, 0.25);
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .contact-info .contact-link {
    max-width: 100%;
  }
}