.a-button {
  --a-button-icon-size: 1.1em;
  appearance: none;
  box-sizing: border-box;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.a-button:has(.a-button__icon) {
  line-height: var(--a-button-icon-size);
}

.a-button,
.a-button--large {
  min-height: 2.75rem;
  padding: 0.7rem 1.15rem;
  font-size: var(--fs-md);
}

.a-button--medium {
  min-height: 2.35rem;
  padding: 0.55rem 1rem;
  font-size: var(--fs-sm);
}

.a-button--small {
  min-height: 1.9rem;
  padding: 0.35rem 0.75rem;
  font-size: var(--fs-xs);
}

.a-button__icon {
  display: block;
  flex-shrink: 0;
  width: var(--a-button-icon-size);
  height: var(--a-button-icon-size);
}

.a-button--icon-only {
  padding-inline: 0;
}

.a-button--icon-only.a-button--small,
.a-button--small.a-button--icon-only {
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
}

.a-button--primary {
  background: var(--color-accent);
  color: #fff;
}

.a-button--primary:hover {
  background: var(--color-accent-hover);
}

.a-button--ghost {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-text);
}

.a-button--ghost:hover {
  border-color: var(--color-text-muted);
  background: color-mix(in srgb, white 6%, transparent);
}

.a-button--soft {
  background: var(--color-surface);
  border-color: var(--color-line);
  color: var(--color-text);
}

.a-button--soft:hover {
  border-color: color-mix(in srgb, white 45%, transparent);
}

.m-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.a-field {
  display: grid;
  gap: var(--space-2);
}

.a-field__label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
}

.a-input {
  box-sizing: border-box;
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font: inherit;
  background: color-mix(in srgb, white 4%, var(--color-ink));
  color: var(--color-text);
}

.a-input::placeholder {
  color: var(--color-text-muted);
}

.a-input,
.a-input--large {
  padding: 0.75rem 0.9rem;
  font-size: var(--fs-md);
}

.a-input--medium {
  padding: 0.5rem 0.85rem;
  font-size: var(--fs-sm);
}

.a-input--small {
  padding: 0.35rem 0.7rem;
  font-size: var(--fs-xs);
}

.a-input:focus {
  outline: 2px solid rgb(25 124 255 / 0.35);
  border-color: var(--color-accent);
}

.a-input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.o-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.o-card--archived {
  filter: grayscale(1);
  opacity: 0.78;
}

.o-card--archived:hover {
  filter: grayscale(0.35);
  opacity: 0.92;
}

.o-card__media {
  position: relative;
  aspect-ratio: 3 / 1;
  overflow: hidden;
  background: var(--color-surface-2);
}

.o-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.o-card__badges {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.o-card__badge {
  position: absolute;
  top: 0.65rem;
  margin: 0;
  pointer-events: auto;
  backdrop-filter: none;
  border-radius: var(--radius-sm);
}

.o-card__badge--left {
  left: 0.65rem;
}

.o-card__badge--right {
  right: 0.65rem;
}

.o-card__badge.a-pill--info {
  color: #fff;
  background: color-mix(in srgb, var(--color-success) 55%, transparent);
  border-color: var(--color-success);
}

.o-card__badge.a-pill--warn {
  color: #fff;
  background: color-mix(in srgb, var(--color-warn) 55%, transparent);
  border-color: var(--color-warn);
}

.o-card__badge.a-pill--warn .a-pill__icon {
  color: #fff;
}

.o-card__badge .a-pill__dot {
  background: #fff;
  box-shadow: 0 0 0 0 rgb(255 255 255 / 0.55);
  animation-name: a-pill-pulse-on-solid;
}

@keyframes a-pill-pulse-on-solid {
  0% {
    box-shadow: 0 0 0 0 rgb(255 255 255 / 0.55);
  }
  70% {
    box-shadow: 0 0 0 0.55rem rgb(255 255 255 / 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgb(255 255 255 / 0);
  }
}

.o-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  flex: 1;
}

.o-card__eyebrow,
.o-card__meta {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.o-card__countdown {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: calc(var(--fs-sm) - 1px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  /* tek satır, sığmazsa üç nokta */
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.o-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  line-height: var(--lh-tight);
  color: var(--color-text);
}

.o-card__text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.o-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-2);
}

.o-card-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .o-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .o-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.m-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: var(--space-5);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, visibility 160ms ease;
}

.m-modal.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.m-modal__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, black 55%, transparent);
  backdrop-filter: blur(2px);
}

.m-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 32rem);
  max-height: min(85vh, 40rem);
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  transform: translateY(8px) scale(0.98);
  transition: transform 160ms ease;
}

.m-modal.is-open .m-modal__dialog {
  transform: translateY(0) scale(1);
}

.m-modal__dialog--small {
  width: min(100%, 22rem);
}

.m-modal__dialog--medium {
  width: min(100%, 32rem);
}

.m-modal__dialog--large {
  width: min(100%, 44rem);
}

.m-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-line);
}

.m-modal__title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  line-height: var(--lh-tight);
  margin: 0;
  color: var(--color-text);
}

.m-modal__body {
  padding: var(--space-5);
  overflow-y: auto;
  color: var(--color-text-muted);
}

.m-modal__footer {
  display: flex;
  justify-content: flex-end;
  padding: var(--space-4) var(--space-5) var(--space-5);
  border-top: 1px solid var(--color-line);
}

.m-login-form {
  display: grid;
  gap: var(--space-4);
}

.m-login-form__submit {
  position: relative;
  width: 100%;
  margin-top: var(--space-1);
}

body.is-modal-open {
  overflow: hidden;
}

.m-dropdown {
  position: relative;
  display: inline-block;
}

.m-dropdown__menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  z-index: 50;
  min-width: 12rem;
  margin: 0;
  padding: var(--space-2);
  list-style: none;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease, visibility 140ms ease;
}

.m-dropdown__menu--right {
  left: auto;
  right: 0;
}

.m-dropdown.is-open .m-dropdown__menu {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.m-dropdown__item {
  --a-button-icon-size: 1.1em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 0;
  border-radius: calc(var(--radius-sm) - 2px);
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 1.2;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.m-dropdown__item .a-button__icon {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

.m-dropdown__item:hover,
.m-dropdown__item:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-text);
  outline: none;
}

.m-dropdown__item--label {
  cursor: default;
  font-weight: 700;
  color: var(--color-text);
}

.m-dropdown__item--label:hover,
.m-dropdown__item--label:focus-visible {
  background: transparent;
  color: var(--color-text);
}

.m-dropdown__separator {
  height: 1px;
  margin: var(--space-2) 0;
  background: var(--color-line);
  border: 0;
}

.m-login-form__error {
  margin: 0;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-error) 16%, transparent);
  color: #ffb4b8;
  font-size: var(--fs-sm);
  font-weight: 600;
}

.a-button__spinner {
  width: 1.25em;
  height: 1.25em;
  border: 2px solid rgb(255 255 255 / 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: a-button-spin 0.7s linear infinite;
}

.a-button.is-loading {
  pointer-events: none;
  color: transparent;
}

.a-button.is-loading > *:not(.a-button__spinner) {
  visibility: hidden;
}

.a-button.is-loading .a-button__spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: 0;
  transform: translate(-50%, -50%);
  animation: a-button-spin-centered 0.7s linear infinite;
}

@keyframes a-button-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes a-button-spin-centered {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.site-nav__user {
  flex-shrink: 0;
}

/* Kategori filtresi */
.category-filter {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-block: var(--space-4);
  scrollbar-width: none;
}
.category-filter::-webkit-scrollbar { display: none; }
.category-filter__item {
  flex: 0 0 auto;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .15s, color .15s, border-color .15s;
}
.category-filter__item:hover { color: var(--color-text); border-color: var(--color-accent); }
.category-filter__item.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* Kategori: kart kenarlığı ve etiket (pulse yok) */
.o-card--category {
  border-color: var(--category-color);
}
.o-card__badge--category {
  color: #fff;
  background: color-mix(in srgb, var(--category-color) 55%, transparent);
  border-color: var(--category-color);
}

/* Bölüm başlığı: sağ uçta Geri linki */
.section__header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  column-gap: var(--space-4);
}
.section__header > :not(.section__back) { grid-column: 1; }
.section__back {
  grid-column: 2;
  grid-row: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color .15s;
}
.section__back[hidden] { display: none; }
.section__back svg { width: 1.1em; height: 1.1em; }
.section__back:hover { color: var(--color-accent); }
#bolumler { scroll-margin-top: var(--header-h); }

/* Alt menü header'ın altına yapışır; bölümler onun altından geçer */
:root { --subnav-h: 4.25rem; }
.category-filter[data-section-jump] {
  position: sticky;
  top: var(--header-real, var(--header-h));
  z-index: 15;
  background: color-mix(in srgb, var(--color-ink) 88%, transparent);
  backdrop-filter: blur(10px);
  /* arka planı tam ekran genişliğine yay */
  box-shadow: 0 0 0 100vmax color-mix(in srgb, var(--color-ink) 88%, transparent);
  clip-path: inset(0 -100vmax);
}
#yakinda, #arsiv { scroll-margin-top: calc(var(--header-real, var(--header-h)) + var(--subnav-real, var(--subnav-h))); }

/* Önbellek güncelleme uyarısı: açık etkinlik değiştiyse çıkar, kapatılamaz. */
.hb-toast {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  width: 22rem;
  max-width: calc(100% - 20px);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.35);
  color: #111827;
  animation: hb-toast-in 0.3s ease-out;
}

.hb-toast__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-warn) 15%, #fff);
  color: var(--color-warn);
}

.hb-toast__icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

.hb-toast__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.hb-toast__title {
  margin: 0 0 0.2rem;
  font-weight: 700;
  font-size: var(--fs-sm);
}

.hb-toast__text {
  margin: 0 0 0.4rem;
  font-size: var(--fs-sm);
  line-height: 1.4;
  color: #4b5563;
}

.hb-toast__button {
  margin-left: auto;
  padding: 0;
  border: 0;
  background: none;
  color: var(--color-warn);
  font: inherit;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.hb-toast__button:hover {
  text-decoration-thickness: 2px;
}

@keyframes hb-toast-in {
  from {
    opacity: 0;
    transform: translateX(1rem);
  }
}