/* ============================================
   COMPONENT STYLES
   ============================================ */

/* ============================================
   NAVBAR
   ============================================ */

.site-nav {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  padding-top: 0;
  padding-bottom: 0;
}

/* Brand */
.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  transition: opacity var(--transition-fast);
}

.site-nav__brand:hover {
  opacity: 0.8;
  text-decoration: none;
}

.site-nav__brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: white;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.site-nav__brand-img {
  width: 100%;
  height: 100%;
  object-fit: cover;           /* fills the box + crops */
  display: block;
}

.site-nav__brand-text {
  font-size: 1.15rem;
}

/* Navigation Links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1rem;
  color: var(--text-medium);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}

.site-nav__link:hover {
  color: var(--primary-color);
  background: var(--bg-light);
  text-decoration: none;
}

.site-nav__link.is-active {
  color: var(--primary-color);
  background: var(--bg-light);
  font-weight: 600;
}

.site-nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px 3px 0 0;
}

/* Mobile Toggle */
.site-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.site-nav__toggle:hover {
  background: var(--bg-light);
}

.site-nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* Mobile Styles */
@media (max-width: 768px) {
  .site-nav__toggle {
    display: flex;
  }

  .site-nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height var(--transition-normal), opacity var(--transition-normal);
  }

  .site-nav.is-open .site-nav__links {
    max-height: 500px;
    opacity: 1;
    padding: 0.5rem 0;
  }

  .site-nav__link {
    width: 100%;
    padding: 1rem var(--spacing-lg);
    border-radius: 0;
    justify-content: flex-start;
  }

  .site-nav__link.is-active::after {
    display: none;
  }

  .site-nav__link.is-active {
    border-left: 3px solid var(--primary-color);
    padding-left: calc(var(--spacing-lg) - 3px);
  }

  /* Hamburger animation */
  .site-nav.is-open .site-nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-nav.is-open .site-nav__toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .site-nav.is-open .site-nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ============================================
   SITE BANNER
   ============================================ */

.site-banner {
  background: rgba(37, 99, 235, 0.06);
  border-bottom: 1px solid rgba(37, 99, 235, 0.18);
}

.site-banner__inner {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
}

.site-banner__text {
  color: var(--text-dark);
  font-size: 0.95rem;
  line-height: 1.35;
}

.site-banner__text strong {
  font-weight: 700;
}

.site-banner__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text-dark);
  cursor: pointer;
  transition: background var(--transition-fast), transform .06s ease;
}

.site-banner__close:hover {
  background: rgba(255, 255, 255, 0.9);
}

.site-banner__close:active {
  transform: translateY(1px);
}

@media (max-width: 768px) {
  .site-banner__inner {
    align-items: flex-start;
    padding: 0.75rem 0;
  }

  .site-banner__text {
    font-size: 0.9rem;
  }
}

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

.site-footer {
  background: var(--bg-white);
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-xl);
  align-items: start;
}

.site-footer__left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.01em;
}

.site-footer__text {
  color: var(--text-medium);
  font-size: 0.95rem;
  line-height: 1.5;
  max-width: 400px;
}

.site-footer__right {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-end;
}

.site-footer__right a {
  color: var(--text-medium);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.site-footer__right a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.site-footer__bottom {
  grid-column: 1 / -1;
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  color: var(--text-medium);
  font-size: 0.9rem;
  text-align: center;
}

@media (max-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .site-footer__right {
    align-items: flex-start;
  }

  .site-footer__bottom {
    text-align: left;
  }
}

/* ============================================
   BUTTONS & BASIC COMPONENTS
   ============================================ */

/* Base button geometry (works whether you use .btn, .btn-primary, or .btn-secondary) */
.btn,
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.05rem;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 650;
  cursor: pointer;
  transition: transform .06s ease, box-shadow var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
  will-change: transform;
}

.btn,
.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
  color: white;
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.btn:hover,
.btn-primary:hover {
  opacity: 0.95;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn:active,
.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.65);
  color: var(--text-dark);
  border-color: var(--border-color);
  box-shadow: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(148, 163, 184, 0.70);
}

.btn-small {
  padding: 0.45rem 0.7rem;
  border-radius: 10px;
  font-size: 0.9rem;
}

.btn-large {
  padding: 0.9rem 1.25rem;
  border-radius: 14px;
  font-size: 1.02rem;
}

.btn[aria-disabled="true"],
.btn-primary[aria-disabled="true"],
.btn-secondary[aria-disabled="true"],
button.btn:disabled,
button.btn-primary:disabled,
button.btn-secondary:disabled {
  opacity: 0.6;
  pointer-events: none;
}

/* ============================================
   FILTER PANELS (shared: Skills + Projects)
   ============================================ */

.filters-section {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-md);
  background: var(--bg-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filters-section label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.filters-section select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  background: var(--bg-white);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.filters-section select:hover {
  border-color: var(--primary-color);
}

.filters-section select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.filters-row #reset-filters {
  margin-left: auto;
}

@media (max-width: 768px) {
  .filters-row {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
  }

  .filters-section select {
    width: 100%;
  }

  .filters-row #reset-filters {
    margin-left: 0;
    width: 100%;
  }
}

/* Cards */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.tag {
  display: inline-flex;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-gray);
  font-size: 0.9rem;
  line-height: 1;
}

/* Status pills (used on project cards across pages) */
.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 650;
  white-space: nowrap;
  flex-shrink: 0;
}

.status-completed {
  background-color: #dcfce7;
  color: #166534;
}

.status-in-progress {
  background-color: #fef3c7;
  color: #92400e;
}

/* Lightweight tech tags (index pages can override) */
.tech-tag {
  padding: 0.25rem 0.6rem;
  background: var(--bg-gray);
  color: var(--text-dark);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.tech-tag.more {
  font-weight: 700;
}

/* Shared responsive grids (used across index + detail pages) */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* Skill + Project cards */
.skill-card,
.project-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
}

.skill-card h3,
.project-card h3 {
  margin: 0 0 0.25rem;
}

.skill-card p,
.project-card p {
  margin: 0.25rem 0 0.75rem;
  color: var(--muted);
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
}

.gallery-item .caption {
  padding: var(--spacing-sm) var(--spacing-md);
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ============================================
   ERROR STATE SUGGESTION LINKS
   ============================================ */

.link-list {
  margin: var(--spacing-sm) 0 0;
  padding-left: 1.25rem;
}

.link-list li {
  margin: 0.25rem 0;
}

.error-suggestions {
  margin: var(--spacing-md) 0;
}

/* ============================================
   LOADING + EMPTY STATES
   ============================================ */

/*
  Spinner used in:
  - /skills/skill.html
  - /projects/project.html
  (and any future loading containers)
*/
.spinner {
  width: 28px;
  height: 28px;
  border-radius: 9999px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  animation: spinner-rotate 0.9s linear infinite;
  margin: 0 auto var(--spacing-md);
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

/*
  Generic empty-state used in:
  - /skills/skill.html (#no-projects)
  - /projects/project.html (#no-gallery)
*/
.empty-state {
  padding: var(--spacing-xl);
  text-align: center;
  background: var(--bg-white);
  border: 1px dashed var(--border-color);
  border-radius: var(--border-radius);
  color: var(--muted);
}

.empty-state p {
  margin: 0;
  color: var(--muted);
}