/* ═══════════════════════════════════════════════
   SECTIONS.CSS — About, Skills, Projects, Contact, Footer
   Portfolio — Matheus Padilha
═══════════════════════════════════════════════ */

/* ════════════════════════════════════════
   ABOUT SECTION
════════════════════════════════════════ */
.about-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 5rem;
  align-items: center;
}

/* ---- Photo Placeholder ---- */
.about-visual {
  position: relative;
}

.photo-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-surface);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.photo-placeholder:hover {
  border-color: var(--text-muted);
  box-shadow: var(--shadow-lg);
}

.photo-placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 1rem;
  color: var(--text-muted);
  user-select: none;
}

.photo-placeholder-inner svg {
  opacity: 0.4;
}

.photo-soon-label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  opacity: 0.5;
}

/* Decorative corner elements */
.photo-deco-tl,
.photo-deco-br {
  position: absolute;
  width: 48px;
  height: 48px;
  border: 1.5px solid var(--border);
  pointer-events: none;
  transition: border-color var(--transition-slow);
}

.photo-deco-tl {
  top: -12px;
  left: -12px;
  border-right: none;
  border-bottom: none;
  border-radius: var(--radius-sm) 0 0 0;
}

.photo-deco-br {
  bottom: -12px;
  right: -12px;
  border-left: none;
  border-top: none;
  border-radius: 0 0 var(--radius-sm) 0;
}

/* ---- Experience Badge ---- */
.about-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  animation: badgeFloat 4s ease-in-out 2s infinite;
}

@keyframes badgeFloat {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-6px); }
}

.about-badge svg {
  flex-shrink: 0;
  color: var(--text-primary);
}

.about-badge > div {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.badge-num {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.badge-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ---- About Content ---- */
.about-content { }

.about-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

/* ---- Stats ---- */
.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.stat-number {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
  color: var(--text-primary);
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: inline;
  vertical-align: super;
  letter-spacing: -0.04em;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: 0.35rem;
}

/* ════════════════════════════════════════
   SKILLS SECTION
════════════════════════════════════════ */
.skills-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3.5rem;
}

/* ---- Skill Card 3D ---- */
.skill-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: none;
  /* border and shadow transition only — tilt handled by JS */
  transition: border-color 0.35s ease, box-shadow 0.5s ease;
}

.skill-card:hover {
  border-color: var(--text-muted);
  box-shadow:
    0 24px 48px rgba(0,0,0,0.13),
    0  8px 16px rgba(0,0,0,0.07),
    inset 0 1px 0 rgba(255,255,255,0.06);
}

/* Shine — follows mouse position via JS-updated CSS vars */
.skill-shine {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at var(--sx, 50%) var(--sy, 50%),
    rgba(255,255,255,0.10) 0%,
    transparent 65%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}
.skill-card:hover .skill-shine { opacity: 1; }

/* Card inner — receives perspective rotateX/Y from JS */
.skill-card-inner {
  padding: 2rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transform-style: preserve-3d;
  position: relative;
  z-index: 1;
}

/* SVG Icon — floats at Z=30px, pops further on hover */
.skill-icon-3d {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--text-primary);
  transform: translateZ(30px);
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.skill-card:hover .skill-icon-3d {
  transform: translateZ(50px) scale(1.1);
  animation: iconBob 2.2s ease-in-out infinite;
}

@keyframes iconBob {
  0%,100% { transform: translateZ(50px) scale(1.1) translateY(0px); }
  50%      { transform: translateZ(50px) scale(1.1) translateY(-4px); }
}

/* Card body — floats at Z=15px */
.skill-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transform: translateZ(15px);
  transition: transform 0.55s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.skill-card:hover .skill-card-body {
  transform: translateZ(25px);
}

.skill-name {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1;
}

/* Accent line — slides in from left on hover */
.skill-accent-line {
  height: 1px;
  width: 100%;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.skill-accent-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--text-primary);
  transition: left 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-card:hover .skill-accent-line::after {
  left: 0;
}

/* Corner index tag */
.skill-card-tag {
  position: absolute;
  top: 1.125rem;
  right: 1.25rem;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  opacity: 0.45;
  user-select: none;
  z-index: 2;
}

/* Hidden — kept for JS compatibility */
.skill-level,
.skill-bar,
.skill-pct { display: none; }

/* ════════════════════════════════════════
   PROJECTS SECTION
════════════════════════════════════════ */
.projects-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-surface);
  cursor: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  will-change: transform;
  transform-style: preserve-3d;
}

.project-card:hover {
  border-color: var(--text-muted);
  box-shadow: var(--shadow-xl);
}

.project-card-wide {
  grid-column: 1 / -1;
}

/* Regular card inner */
.project-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Wide card inner */
.project-card-inner-wide {
  flex-direction: row;
}

/* ---- Project Image ---- */
.project-image {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-secondary);
  overflow: hidden;
  flex-shrink: 0;
}

.project-image-wide {
  aspect-ratio: 4 / 3;
  width: 55%;
}

.project-image-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--border) 100%);
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image-bg {
  transform: scale(1.04);
}

.project-num-label {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: -0.07em;
  line-height: 1;
  color: var(--border);
  transition: color var(--transition-base);
  pointer-events: none;
  user-select: none;
}

.project-card:hover .project-num-label {
  color: var(--text-muted);
}

/* ---- Project Overlay (hover links) ---- */
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
  z-index: 10;
}

.project-card:hover .project-overlay {
  opacity: 1;
}

/* ---- Project Card Pop (float breakout on hover) ---- */
.project-card-pop {
  display: block;
  text-decoration: none;
  color: inherit;
  overflow: visible !important; /* let float images escape */
  position: relative; /* for z-index */
  z-index: 1;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), z-index 0s;
}

.project-card-pop:hover {
  z-index: 100; /* pop over adjacent grid cards */
}

.project-card-pop .project-image-composition {
  position: relative;
  overflow: visible;
  background: var(--bg-surface);
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
}

.project-card-pop .img-base {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
}

/* Float images — start tucked inside the card boundary */
.project-card-pop .img-float {
  position: absolute;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.12);
  pointer-events: none;
  z-index: 5;
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.65s ease, opacity 0.65s ease;
  opacity: 0.85;
}

.project-card-pop .float-1 {
  width: 45%;
  bottom: -5%;
  right: -5%;
  transform: perspective(800px) rotateY(-10deg) rotateX(5deg);
}

.project-card-pop .float-2 {
  width: 40%;
  top: 5%;
  left: -10%;
  transform: perspective(800px) rotateY(10deg) rotateX(-5deg);
}

/* On hover: float images burst completely outside */
.project-card-pop:hover .img-base {
  transform: scale(1.04);
}

.project-card-pop:hover .float-1 {
  transform: perspective(900px) rotateY(-22deg) rotateX(10deg) translate(35%, 25%) scale(1.15);
  box-shadow: -25px 35px 65px rgba(0,0,0,0.8);
  opacity: 1;
}

.project-card-pop:hover .float-2 {
  transform: perspective(900px) rotateY(22deg) rotateX(-10deg) translate(-35%, -25%) scale(1.15);
  box-shadow: 25px -25px 65px rgba(0,0,0,0.8);
  opacity: 1;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-full);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast);
  cursor: none;
}

.project-link-btn:hover {
  background: rgba(255,255,255,0.22);
  transform: translateY(-1px);
}

/* ---- Project Info ---- */
.project-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.project-info-wide {
  padding: 2rem 2rem 2rem 2.5rem;
  justify-content: center;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.project-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.project-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ════════════════════════════════════════
   CONTACT SECTION
════════════════════════════════════════ */
.contact-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.contact-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(128, 128, 128, 0.06) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 2.5rem;
}

/* ---- Social Links ---- */
.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.125rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: none;
  transition:
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.social-link:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
}

.social-icon-wrap {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.social-link:hover .social-icon-wrap {
  background: var(--bg-surface);
  border-color: var(--text-muted);
}

.social-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.social-name {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.social-handle {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-arrow {
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.social-link:hover .social-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---- Contact Form ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1.125rem 0 0.625rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  resize: none;
  transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--text-primary);
}

.form-group label {
  position: absolute;
  left: 0;
  top: 1.125rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all 0.2s var(--ease-out-expo);
  transform-origin: left top;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: 0;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.form-group textarea {
  padding-top: 1.25rem;
  display: block;
  line-height: 1.7;
}

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background var(--transition-base), border-color var(--transition-base);
  cursor: none;
}

.footer-btn:hover {
  transform: translateY(-4px);
  background: var(--bg-secondary);
  border-color: var(--text-muted);
}

.whatsapp-btn:hover {
  color: #25D366; /* WhatsApp brand color when hovered */
  border-color: #25D366;
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid  { grid-template-columns: 1fr 1.2fr; gap: 3rem; }
}

@media (max-width: 768px) {
  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-visual { max-width: 320px; }
  .photo-placeholder { aspect-ratio: 1; }
  .about-badge { bottom: -1rem; right: -1rem; }
  .about-stats { gap: 1.5rem; }

  /* Skills */
  .skills-grid { grid-template-columns: repeat(2, 1fr); }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr; }
  .project-card-wide { grid-column: auto; }
  .project-card-inner-wide { flex-direction: column; }
  .project-image-wide { width: 100%; aspect-ratio: 16/9; }
  .project-info-wide { padding: 1.5rem; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-form { padding: 1.5rem; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; gap: 0.5rem; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
}