/* ==========================================================================
   SECTIONS.CSS — Page Section Layouts
   Arme Demir Premium Portfolio
   ========================================================================== */

/* =======================================================================
   FIXED 3D CANVAS BACKGROUND
   ======================================================================= */
.canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.canvas-bg canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Content layer above canvas */
main {
  position: relative;
  z-index: 1;
}

.footer {
  position: relative;
  z-index: 1;
}

/* =======================================================================
   ABOUT — LANDING MODE (first section, no hero above)
   3D canvas visible through gradient at top, content fades in below
   ======================================================================= */
.about--landing {
  padding-top: calc(5rem + var(--section-padding));
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.25) 0%,
    rgba(10, 10, 10, 0.55) 15%,
    rgba(10, 10, 10, 0.78) 35%,
    rgba(10, 10, 10, 0.88) 60%,
    rgba(10, 10, 10, 0.92) 100%
  ) !important;
}


/* =======================================================================
   ABOUT
   ======================================================================= */
.about {
  padding: var(--section-padding) 0 1rem 0;
  position: relative;
  background: rgba(10, 10, 10, 0.82);
}

.about__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-lg);
  margin-top: var(--gap-xl);
}

.about__card {
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

/* Accent left bar */
.about__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: 0 2px 2px 0;
}

.about__card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--gap-md);
  color: var(--accent);
  font-size: 1.5rem;
}

.about__card-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--text-primary);
  margin-bottom: var(--gap-sm);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.about__card-text {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: var(--lh-loose);
}


/* =======================================================================
   STATS ROW
   ======================================================================= */
.stats {
  padding: 1.5rem 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(10, 10, 10, 0.92);
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-lg);
}

.stat-item {
  text-align: center;
}

.stat-item__number {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.stat-item__label {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  margin-top: var(--gap-sm);
}


/* =======================================================================
   PROJECTS
   ======================================================================= */
.projects {
  padding: var(--section-padding) 0;
  position: relative;
  background: rgba(10, 10, 10, 0.80);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-lg);
  margin-top: var(--gap-xl);
}

/* --- Category Filter Bar --- */
.projects-filter {
  margin-bottom: 2rem;
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.projects-filter__arrow {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: #ccc;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.projects-filter__arrow:hover {
  background: rgba(212, 135, 14, 0.15);
  border-color: #d4870e;
  color: #d4870e;
}

[data-theme="light"] .projects-filter__arrow {
  border-color: rgba(0,0,0,0.12);
  background: rgba(0,0,0,0.04);
  color: #555;
}

[data-theme="light"] .projects-filter__arrow:hover {
  background: rgba(212, 135, 14, 0.12);
  border-color: #d4870e;
  color: #d4870e;
}

.projects-filter__track {
  flex: 1;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
}

.projects-filter__track::-webkit-scrollbar {
  display: none;
}

.projects-filter__btn {
  flex-shrink: 0;
  padding: 0.65rem 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.04);
  color: #999;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.projects-filter__btn:hover {
  border-color: #d4870e;
  color: #d4870e;
  background: rgba(212, 135, 14, 0.08);
}

.projects-filter__btn.active {
  background: linear-gradient(135deg, #d4870e, #b5720c);
  border-color: #d4870e;
  color: #000;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(212, 135, 14, 0.3);
}

/* --- Card --- */
.project-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--glass-border);
  background: var(--bg-secondary);
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

/* --- Image Wrapper --- */
.project-card__image-wrapper {
  position: relative;
  overflow: hidden;
}

/* --- Placeholder (icon-based, no real image) --- */
.project-card__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  position: relative;
}

.project-card__placeholder i,
.project-card__placeholder svg {
  width: 56px;
  height: 56px;
  color: var(--accent);
  opacity: 0.4;
  filter: drop-shadow(0 0 12px rgba(212, 135, 14, 0.3));
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.project-card:hover .project-card__placeholder i,
.project-card:hover .project-card__placeholder svg {
  opacity: 0.7;
  transform: scale(1.1);
}

.project-card:hover {
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

/* --- Image --- */
.project-card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.project-card:hover .project-card__image {
  transform: scale(1.08);
}

/* --- Overlay (always partially visible) --- */
.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.85) 0%,
    rgba(0, 0, 0, 0.15) 60%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: background var(--duration-normal) var(--ease-out);
}

.project-card:hover .project-card__overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.92) 0%,
    rgba(0, 0, 0, 0.35) 60%,
    rgba(0, 0, 0, 0.1) 100%
  );
}

.project-card__category {
  font-size: var(--fs-xs);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  margin-bottom: 0.25rem;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--text-primary);
}

/* =======================================================================
   PROJECT DETAIL MODAL (.pdm)
   ======================================================================= */
.pdm {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pdm.active {
  pointer-events: auto;
  opacity: 1;
}

.pdm.closing {
  opacity: 0;
}

.pdm__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.pdm__container {
  position: relative;
  display: flex;
  flex-direction: column;
  max-width: 700px;
  width: 90%;
  max-height: 90vh;
  background: rgba(20, 20, 20, 0.95);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  transform: translateY(40px) scale(0.95);
  transition: transform 0.35s var(--ease-out);
}

.pdm.active .pdm__container {
  transform: translateY(0) scale(1);
}

.pdm.closing .pdm__container {
  transform: translateY(40px) scale(0.95);
}

.pdm__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.pdm__close:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.pdm__visual {
  position: relative;
  overflow: hidden;
  width: 100%;
  background: #111;
}

.pdm__image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* Gallery slider: stack slides */
.pdm__slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.pdm__slide.active {
  opacity: 1;
  position: relative;
  height: auto;
  pointer-events: auto;
}

/* Prev/Next arrows */
.pdm__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition: all 0.2s ease;
}

.pdm__arrow:hover {
  background: rgba(0,0,0,0.75);
  transform: translateY(-50%) scale(1.1);
}

.pdm__arrow--prev { left: 12px; }
.pdm__arrow--next { right: 12px; }

.pdm__arrow i, .pdm__arrow svg {
  width: 20px;
  height: 20px;
}

/* Dot indicators */
.pdm__dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}

.pdm__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.2s ease;
}

.pdm__dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.2);
}

.pdm__dot:hover {
  border-color: #fff;
}

/* ---- Fullscreen Lightbox ---- */
.pdm-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pdm-lightbox.active {
  opacity: 1;
}

.pdm-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  cursor: zoom-out;
}

.pdm-lightbox__img {
  position: relative;
  z-index: 2;
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 60px rgba(0,0,0,0.6);
  cursor: zoom-out;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.pdm-lightbox.active .pdm-lightbox__img {
  transform: scale(1);
}

.pdm-lightbox__close {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 3;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pdm-lightbox__close:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.pdm__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdm__image-placeholder i,
.pdm__image-placeholder svg {
  width: 72px;
  height: 72px;
  color: var(--accent);
  opacity: 0.4;
}

.pdm__content {
  flex: 1;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
}

.pdm__category {
  font-size: var(--fs-xs);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  font-weight: 600;
}

.pdm__title {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  color: var(--text-primary);
  margin-top: 0.5rem;
}

.pdm__divider {
  width: 50px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 1.25rem 0;
}

.pdm__desc {
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: var(--lh-loose);
}

.pdm__meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--glass-border);
}

.pdm__meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small);
  color: var(--text-secondary);
}

.pdm__meta-item i,
.pdm__meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* Mobile: stack vertically */
@media (max-width: 768px) {
  .pdm__container {
    flex-direction: column;
    max-height: 90vh;
  }
  .pdm__visual {
    flex: 0 0 auto;
  }
  .pdm__content {
    padding: 1.5rem;
  }
}


/* =======================================================================
   CONTACT
   ======================================================================= */
.contact {
  padding: var(--section-padding) 0;
  position: relative;
  background: rgba(10, 10, 10, 0.88);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  margin-top: var(--gap-xl);
}

/* --- Form --- */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

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

.form-group label {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  transition: all var(--duration-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-md);
}

/* --- Info Column --- */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.contact__info-item {
  display: flex;
  gap: var(--gap-md);
  align-items: flex-start;
}

.contact__info-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--accent);
  font-size: 1.2rem;
}

.contact__info-title {
  font-family: var(--font-display);
  font-size: var(--fs-body);
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact__info-text {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

.contact__info-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}
.contact__info-link:hover {
  color: var(--accent);
}

/* --- Map --- */
.contact__map {
  height: 300px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  margin-top: var(--gap-lg);
}

#office-map {
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Leaflet dark theme overrides */
.leaflet-control-zoom a {
  background: rgba(20, 20, 20, 0.85) !important;
  color: var(--text-primary) !important;
  border-color: var(--glass-border) !important;
  backdrop-filter: blur(8px);
}

.leaflet-control-zoom a:hover {
  background: rgba(40, 40, 40, 0.9) !important;
  color: var(--accent) !important;
}

.leaflet-popup-content-wrapper {
  background: rgba(20, 20, 20, 0.92) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5) !important;
  backdrop-filter: blur(8px);
}

.leaflet-popup-tip {
  background: rgba(20, 20, 20, 0.92) !important;
}

/* Amber marker */
.office-marker {
  background: none !important;
  border: none !important;
}

.office-marker__pin {
  filter: drop-shadow(0 0 6px rgba(212, 135, 14, 0.5));
  animation: markerPulse 2s ease-in-out infinite;
}

@keyframes markerPulse {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(212, 135, 14, 0.4)); }
  50% { filter: drop-shadow(0 0 12px rgba(212, 135, 14, 0.7)); }
}

/* Return to Office button */
.leaflet-return-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(20, 20, 20, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 12px rgba(212, 135, 14, 0.2);
  animation: slideInReturn 0.3s ease-out;
  white-space: nowrap;
}

.leaflet-return-btn:hover {
  background: var(--accent);
  color: #000;
  box-shadow: 0 4px 20px rgba(212, 135, 14, 0.4);
}

@keyframes slideInReturn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}


/* =======================================================================
   FOOTER
   ======================================================================= */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--glass-border);
  background: rgba(17, 17, 17, 0.95);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--gap-md);
}

.footer__text {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: var(--gap-md);
}

.footer__link {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  transition: color var(--duration-fast);
}

.footer__link:hover {
  color: var(--accent);
}

/* --- Social Icons --- */
.footer__social {
  display: flex;
  gap: var(--gap-md);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.footer__social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}