/* ==========================================================================
   SIDE PANEL SYSTEM — All section content styles
   ========================================================================== */

/* ---- Panel Overlay ---- */
.panel-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(3, 6, 11, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.panel-overlay.active { opacity: 1; visibility: visible; }

/* ---- Side Panel → Centered Dialog ---- */
.side-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(760px, 94vw);
  max-height: 88vh;
  z-index: 110;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  transform: translate(-50%, -46%) scale(0.96);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.34s var(--ease), opacity 0.3s ease, visibility 0.3s ease;
  box-shadow: 0 32px 80px rgba(2,6,12,0.7), 0 0 0 1px rgba(61,220,151,0.06);
  overflow: hidden;
}
.side-panel.panel-open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
}

/* ---- Panel Header ---- */
.panel-header {
  flex-shrink: 0;
  padding: 0 1.4rem;
  height: 60px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.8rem;
  background: rgba(11,15,20,0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.panel-close {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: transparent;
  cursor: pointer; color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all 0.2s ease; font-family: var(--font-body);
}
.panel-close:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.panel-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.panel-close svg { width: 16px; height: 16px; }

/* ---- Panel prev/next navigation ---- */
.panel-nav-arrows {
  display: flex; gap: 0.4rem; margin-left: auto; flex-shrink: 0;
}

.panel-nav-btn {
  padding: 0.3rem 0.75rem; border-radius: 999px;
  border: 1px solid var(--border); background: transparent;
  font-family: var(--font-body); font-size: 0.68rem; font-weight: 600;
  color: var(--text-muted); cursor: pointer; white-space: nowrap;
  transition: all 0.2s ease; letter-spacing: 0.01em;
}
.panel-nav-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.panel-nav-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.panel-title {
  font-family: var(--font-heading); font-size: 1rem; font-weight: 700;
  color: var(--text-primary); letter-spacing: -0.01em;
}

.panel-title-accent {
  color: var(--accent); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-left: 0.6rem; opacity: 0.8;
}

/* ---- Panel Body ---- */
.panel-body {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: 1.6rem 1.8rem 2.5rem;
  overscroll-behavior: contain;
}

/* ============================================================
   PROJECTS PANEL
   ============================================================ */

/* Project tab row (inside header) */
.proj-tabs {
  display: flex; gap: 0.3rem; margin-left: auto; overflow-x: auto;
  scrollbar-width: none; -ms-overflow-style: none;
}
.proj-tabs::-webkit-scrollbar { display: none; }

.proj-tab {
  padding: 0.35rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--border); background: transparent;
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 600;
  color: var(--text-muted); cursor: pointer; white-space: nowrap;
  transition: all 0.2s ease; letter-spacing: 0.02em;
  flex-shrink: 0;
}
.proj-tab:hover { border-color: var(--accent); color: var(--accent); }
.proj-tab.active {
  background: var(--accent-dim); border-color: var(--accent); color: var(--accent);
}

/* Project content sections */
.proj-content { display: none; }
.proj-content.active { display: block; animation: panelFadeIn 0.3s var(--ease); }

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Project header */
.proj-header { margin-bottom: 1.8rem; }

.proj-number {
  font-family: var(--font-mono); font-size: 0.65rem;
  font-weight: 700; color: var(--text-muted); opacity: 0.5;
  letter-spacing: 0.1em; margin-bottom: 0.4rem;
}

.proj-title {
  font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700;
  letter-spacing: -0.02em; color: var(--text-primary);
  margin-bottom: 0.5rem; line-height: 1.25;
}

.proj-badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.7rem; border-radius: 999px;
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.05em;
  text-transform: uppercase;
}
.proj-badge-ai   { background: var(--blue-dim);   color: var(--blue); }
.proj-badge-be   { background: var(--accent-dim); color: var(--accent); }
.proj-badge-rt   { background: var(--purple-dim); color: var(--purple); }
.proj-badge-cv   { background: var(--purple-dim); color: var(--purple); }

/* Section blocks */
.proj-section { margin-bottom: 1.6rem; }

.proj-section-label {
  font-family: var(--font-body); font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 0.7rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.proj-section-label::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

.proj-overview-text {
  font-size: 0.9rem; line-height: 1.75; color: var(--text-secondary);
}

/* Architecture highlights */
.proj-arch-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 0.7rem;
}
.proj-arch-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.85rem 0.9rem;
  text-align: center; font-size: 0.75rem;
  transition: border-color 0.2s ease;
}
.proj-arch-card:hover { border-color: var(--accent); }
.proj-arch-card-icon {
  font-size: 1.1rem; margin-bottom: 0.3rem; display: block;
}
.proj-arch-card-label { color: var(--text-secondary); font-weight: 600; font-size: 0.72rem; }

/* Tech stack */
.proj-tech-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* Challenges */
.proj-challenges-list {
  list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.5rem;
}
.proj-challenges-list li {
  font-size: 0.87rem; color: var(--text-secondary); line-height: 1.6;
  padding-left: 1.2rem; position: relative;
}
.proj-challenges-list li::before {
  content: '→'; position: absolute; left: 0;
  color: var(--accent); font-weight: 700; font-size: 0.75rem;
}

/* Project footer links */
.proj-actions {
  display: flex; gap: 0.8rem; padding-top: 1rem;
  border-top: 1px solid var(--border); flex-wrap: wrap;
}

/* ============================================================
   SKILLS PANEL
   ============================================================ */

.skills-intro {
  font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.8rem;
  line-height: 1.7;
}

.skill-group { margin-bottom: 1.6rem; }

.skill-group-header {
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.9rem;
}

.skill-group-label {
  font-family: var(--font-body); font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-muted);
}

.skill-group-bar {
  flex: 1; height: 1px; background: var(--border);
}

.skill-group-count {
  font-family: var(--font-mono); font-size: 0.62rem;
  color: var(--text-muted); opacity: 0.6;
}

.skill-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.skill-pill {
  padding: 0.4rem 0.85rem; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.01em;
  border: 1px solid var(--border-light);
  background: var(--surface); color: var(--text-secondary);
  transition: all 0.2s ease;
  cursor: default;
}
.skill-pill:hover { border-color: var(--skill-color, var(--accent)); color: var(--skill-color, var(--accent)); }

/* Backend skills — larger, more prominent */
.skill-group--backend .skill-pill {
  padding: 0.5rem 1rem; font-size: 0.82rem;
  border-color: rgba(61,220,151,0.2);
  background: var(--accent-dim);
  color: var(--accent);
}
.skill-group--backend .skill-pill:hover {
  border-color: var(--accent); box-shadow: 0 0 12px rgba(61,220,151,0.15);
}

/* ============================================================
   EXPERIENCE PANEL
   ============================================================ */

.exp-intro {
  font-size: 0.88rem; color: var(--text-muted); margin-bottom: 2rem; line-height: 1.7;
}

/* Timeline */
.timeline { position: relative; padding-left: 2rem; }

.timeline::before {
  content: '';
  position: absolute; left: 7px; top: 8px; bottom: 8px;
  width: 2px; background: var(--border);
  border-radius: 1px;
}

.timeline-item {
  position: relative; margin-bottom: 2.4rem;
}
.timeline-item:last-of-type { margin-bottom: 0; }

.timeline-dot {
  position: absolute; left: -2rem; top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--accent); background: var(--bg-primary);
  box-shadow: 0 0 10px rgba(61,220,151,0.3);
  transition: box-shadow 0.3s ease;
}
.timeline-item:hover .timeline-dot { box-shadow: 0 0 18px rgba(61,220,151,0.5); }

.timeline-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.4rem 1.5rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.timeline-card:hover { border-color: rgba(61,220,151,0.3); box-shadow: var(--shadow-md); }

.timeline-header { margin-bottom: 0.8rem; }

.timeline-role {
  font-family: var(--font-body); font-size: 0.95rem; font-weight: 700;
  color: var(--text-primary); margin-bottom: 0.2rem;
}

.timeline-company {
  font-size: 0.82rem; color: var(--accent); font-weight: 600;
}

.timeline-date {
  font-size: 0.72rem; color: var(--text-muted); font-weight: 500;
  margin-top: 0.15rem; font-family: var(--font-mono);
}

.timeline-list {
  list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.4rem;
  margin-top: 0.8rem;
}
.timeline-list li {
  font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6;
  padding-left: 1.1rem; position: relative;
}
.timeline-list li::before {
  content: '▸'; position: absolute; left: 0;
  color: var(--accent); font-size: 0.7rem; top: 0.15rem;
}

/* Education card */
.edu-section { margin-top: 2.4rem; }

.edu-label {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem;
}
.edu-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.edu-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.3rem 1.5rem;
}
.edu-degree { font-family: var(--font-body); font-size: 0.95rem; font-weight: 700; margin-bottom: 0.2rem; }
.edu-school { font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 0.4rem; }
.edu-meta { display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap; }
.edu-date { font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); }
.edu-cgpa {
  padding: 0.15rem 0.6rem; background: var(--accent-dim); color: var(--accent);
  border-radius: 999px; font-size: 0.72rem; font-weight: 700;
}

/* ============================================================
   PROFILES PANEL
   ============================================================ */

.profiles-intro {
  font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.8rem; line-height: 1.7;
}

.profiles-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem;
  margin-bottom: 2rem;
}

.profile-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.4rem;
  display: flex; flex-direction: column; gap: 0.7rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s var(--ease);
}
.profile-card:hover {
  border-color: var(--card-color, var(--accent));
  box-shadow: 0 0 20px rgba(61,220,151,0.1);
  transform: translateY(-2px);
}

.profile-card-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--card-color, var(--accent)) 12%, transparent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}

.profile-card-name {
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 700;
  color: var(--text-primary);
}

.profile-card-stat {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
  color: var(--card-color, var(--accent)); line-height: 1;
}

.profile-card-desc { font-size: 0.78rem; color: var(--text-muted); line-height: 1.5; flex: 1; }

.profile-card-link {
  align-self: flex-start; font-size: 0.75rem; font-weight: 600;
  color: var(--card-color, var(--accent)); text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.profile-card-link:hover { border-bottom-color: var(--card-color, var(--accent)); }

/* Summary stat row */
.profiles-summary {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem 1.5rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  gap: 1rem; text-align: center;
}
.summary-stat-value {
  font-family: var(--font-heading); font-size: 1.4rem; font-weight: 700;
  color: var(--accent); display: block;
}
.summary-stat-label { font-size: 0.7rem; color: var(--text-muted); font-weight: 500; }

/* ============================================================
   CONTACT PANEL
   ============================================================ */

.contact-intro {
  font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.8rem; line-height: 1.7;
}

.contact-availability {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.85rem; border-radius: 999px;
  background: var(--accent-dim); border: 1px solid rgba(61,220,151,0.25);
  font-size: 0.72rem; font-weight: 600; color: var(--accent);
  margin-bottom: 1.8rem; letter-spacing: 0.03em;
}
.contact-avail-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }

/* Contact Form */
.contact-form {
  display: flex; flex-direction: column; gap: 1.2rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.8rem; margin-bottom: 2rem;
}

.form-group { position: relative; }

.form-group input,
.form-group textarea {
  width: 100%; padding: 0.9rem 1rem; padding-top: 1.35rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.88rem;
  outline: none; resize: vertical; transition: all 0.25s ease;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(61,220,151,0.12);
}

.floating-label {
  position: absolute; top: 50%; left: 1rem;
  transform: translateY(-50%); color: var(--text-muted);
  font-size: 0.85rem; pointer-events: none; transition: all 0.25s ease;
}
textarea ~ .floating-label { top: 1.1rem; transform: none; }

.form-group input:focus ~ .floating-label,
.form-group input:not(:placeholder-shown) ~ .floating-label,
.form-group input:valid ~ .floating-label {
  top: 0.4rem; transform: none; font-size: 0.62rem; color: var(--accent);
}
.form-group textarea:focus ~ .floating-label,
.form-group textarea:not(:placeholder-shown) ~ .floating-label {
  top: 0.25rem; font-size: 0.62rem; color: var(--accent);
}

.btn-send {
  width: 100%; justify-content: center; position: relative; overflow: hidden;
  padding: 0.85rem; font-size: 0.88rem;
}
.btn-icon-send, .btn-icon-check { width: 16px; height: 16px; }
.btn-icon-check { display: none; }
.btn-send.sent .btn-text, .btn-send.sent .btn-icon-send { display: none; }
.btn-send.sent .btn-icon-check { display: inline; }
.btn-send.sent { background: var(--green); }

/* Social links */
.contact-socials { display: flex; gap: 0.8rem; flex-wrap: wrap; }

.social-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-muted); text-decoration: none;
  font-size: 0.8rem; font-weight: 600;
  transition: all 0.22s ease;
}
.social-link svg { width: 16px; height: 16px; }
.social-link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* ============================================================
   RESUME PANEL
   ============================================================ */

.resume-panel-inner {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; padding: 1rem 0 2rem;
}

.resume-icon {
  width: 72px; height: 72px; border-radius: var(--radius-lg);
  background: var(--accent-dim); border: 1px solid rgba(61,220,151,0.25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: var(--accent);
}
.resume-icon svg { width: 32px; height: 32px; }

.resume-name {
  font-size: 1.4rem; font-weight: 700; margin-bottom: 0.4rem;
}
.resume-role {
  font-size: 0.82rem; color: var(--accent); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.8rem;
}
.resume-note {
  font-size: 0.85rem; color: var(--text-muted); line-height: 1.6;
  max-width: 320px; margin: 0 auto 2rem;
}

.resume-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; justify-content: center; }

.resume-meta {
  margin-top: 2.4rem; padding-top: 1.6rem;
  border-top: 1px solid var(--border); width: 100%;
  text-align: center;
}
.resume-meta p { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.8rem; }
.resume-links { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ============================================================
   RESPONSIVE — Mobile dialog adjustments
   ============================================================ */

@media (max-width: 640px) {
  /* Full-screen style on small mobile */
  .side-panel {
    width: 100vw;
    max-height: 92vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    top: auto;
    bottom: 0;
    left: 0;
    transform: translateX(0) translateY(100%);
    border-left: none;
    border-right: none;
    border-bottom: none;
  }
  .side-panel.panel-open {
    transform: translateX(0) translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .panel-header { 
    border-radius: var(--radius-lg) var(--radius-lg) 0 0; 
    padding: 0.8rem; 
    height: auto; 
    min-height: 50px;
    flex-wrap: wrap;
    gap: 0.6rem;
  }
  .panel-title { flex: 1; font-size: 1.05rem; }
  .panel-body { padding: 1rem 0.8rem 2rem; }
  .proj-tabs { gap: 0.35rem; width: 100%; overflow-x: auto; padding-bottom: 0.2rem; justify-content: flex-start; }
  .proj-tab { padding: 0.3rem 0.6rem; font-size: 0.65rem; white-space: nowrap; flex-shrink: 0; }
  .panel-nav-arrows { display: none; }
  
  /* Compact Panel Content */
  .proj-header { margin-bottom: 1rem; }
  .proj-title { font-size: 1.15rem; }
  .proj-section { margin-bottom: 1.2rem; }
  .proj-overview-text { font-size: 0.85rem; line-height: 1.6; }
  .proj-arch-grid { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 0.4rem; }
  .proj-arch-card { padding: 0.6rem 0.5rem; }
  .proj-arch-card-icon { font-size: 0.95rem; margin-bottom: 0.1rem; }
  .proj-arch-card-label { font-size: 0.65rem; }
  .proj-challenges-list li { font-size: 0.82rem; line-height: 1.5; padding-left: 1rem; }
  
  /* Experience Compact */
  .timeline-item { margin-bottom: 1.6rem; }
  .timeline-card { padding: 1rem 1.2rem; }
  .timeline-role { font-size: 0.9rem; }
  .timeline-company { font-size: 0.75rem; }
  .timeline-list li { font-size: 0.8rem; line-height: 1.5; }
  .edu-card { padding: 1rem 1.2rem; }
  
  /* Profiles Compact */
  .profile-card { padding: 1rem; gap: 0.5rem; }
  .profile-card-icon { width: 32px; height: 32px; font-size: 1.1rem; }
  .profile-card-stat { font-size: 1.2rem; }
  .profile-card-desc { font-size: 0.75rem; }
  
  /* Resume Compact */
  .resume-icon { width: 56px; height: 56px; margin-bottom: 1rem; }
  .resume-icon svg { width: 24px; height: 24px; }
  .resume-name { font-size: 1.25rem; }
  .resume-actions { gap: 0.5rem; }
  .resume-meta { margin-top: 1.8rem; padding-top: 1.2rem; }
}

@media (max-width: 860px) and (min-width: 641px) {
  .side-panel { width: 96vw; max-height: 90vh; }
}