* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* === AÇILIŞ EKRANI (SPLASH SCREEN) === */
#splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--base-color);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

#splash-screen img {
  width: 120px;
  animation: pulse 1.5s infinite ease-in-out;
}
#splash-screen.hidden {
  opacity: 0;
  visibility: hidden;
}
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

:root {
  --font-family: "Poppins", sans-serif;
  --base-color: #121212;
  --surface-color: #1a1a1a;
  --border-color: #2a2a2a;
  --border-hover-color: #444;
  --text-primary: #e5e5e5;
  --text-secondary: #909090;
  --accent-color: #007aff;
  --accent-text-color: #ffffff;
  --danger-color: #ff3b30;
  --success-color: #34c759;
  --card-hover-bg: #2a2a2a;
  --sidebar-highlight-bg: var(--surface-color);
  --primary-btn-color: #ffffff;
  --primary-btn-border: #ffffff;
}

body {
  font-family: var(--font-family);
  background: var(--base-color);
  color: var(--text-primary);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body.light-theme {
  --base-color: #e4e4e4;
  --surface-color: #ffffff;
  --border-color: #d9d9d9;
  --border-hover-color: #cccccc;
  --text-primary: #1c1e21;
  --text-secondary: #606770;
  --card-hover-bg: #e4e6e9;
  --sidebar-highlight-bg: rgba(0, 0, 0, 0.05);
  --primary-btn-color: var(--text-primary);
  --primary-btn-border: var(--text-primary);
}

button,
input,
textarea {
  font: inherit;
}
h1 {
  margin-bottom: 0;
  font-weight: 600;
}
button {
  transition: transform 0.15s ease, background-color 0.2s ease, color 0.2s ease,
    filter 0.2s ease;
}

/* === ANA LAYOUT VE SIDEBAR === */
.app-container {
  position: relative;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}
.main-content {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 2rem 2.5rem;
  padding-left: 280px;
  display: flex;
  flex-direction: column;
  transition: padding-left 0.4s ease;
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20px,
    black 98%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20px,
    black 98%,
    transparent 100%
  );
}
header {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}
.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.header-spacer {
  flex-grow: 1;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.sidebar {
  position: fixed;
  top: 1rem;
  left: 1rem;
  bottom: 1rem;
  width: 250px;
  z-index: 10;
  background: rgba(42, 42, 43, 0.2);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s ease, opacity 0.4s ease;
  transform: translateX(0);
}
.sidebar-header {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 2rem;
  perspective: 1000px;
}

#sidebarLogo {
  width: 160px;
  height: 80px;
  object-fit: contain;
  transition: transform 0.1s linear;
  will-change: transform;
  transform-style: preserve-3d;
}
.sidebar .nav-btn {
  width: 100%;
  padding: 0.6rem 1rem;
  margin-top: 0.25rem;
  border-radius: 6px;
  border: none;
  background-color: transparent;
  color: var(--text-secondary);
  text-align: left;
  font-weight: 500;
  cursor: pointer;
}
.sidebar .nav-btn:hover {
  background-color: var(--sidebar-highlight-bg);
  color: var(--text-primary);
  transform: translateY(2px) scale(1.05);
}
.sidebar .nav-btn.active {
  background-color: var(--sidebar-highlight-bg);
  color: var(--text-primary);
  font-weight: 600;
  transform: translateY(0) scale(0.95);
}
.sidebar-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}
.sidebar-footer .nav-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.toggle-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  margin-right: 1.5rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.toggle-btn:hover {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-primary);
  transform: translateY(2px) scale(1.05);
}
.toggle-btn:active {
  transform: translateY(0) scale(0.95);
}
.app-container.sidebar-collapsed .sidebar {
  transform: translateX(-110%);
  opacity: 0;
}

.app-container.sidebar-collapsed .main-content {
  padding-left: 4rem;
}

/* === BUTONLAR VE FORMLAR === */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.add-note-btn {
  background: var(--accent-color);
  color: var(--accent-text-color);
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.15s ease;
}
.add-note-btn:hover {
  filter: brightness(1.1);
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 0 20px rgba(0, 122, 255, 0.5);
}
.add-note-btn:active {
  transform: translateY(0) scale(0.95);
}
.save-btn {
  background: none;
  border: 2px solid var(--primary-btn-border);
  color: var(--primary-btn-color);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
}
.save-btn:hover {
  filter: brightness(1.1);
  transform: translateY(2px) scale(1.05);
  border: 2px solid var(--accent-color);
  background: var(--accent-color);
  color: var(--accent-text-color);
}
.save-btn:active {
  transform: translateY(0) scale(0.95);
}
.cancel-btn {
  background: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-weight: 500;
  cursor: pointer;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
}
.cancel-btn:hover {
  background: var(--border-color);
  transform: translateY(2px) scale(1.05);
}
.cancel-btn:active {
  transform: translateY(0) scale(0.95);
}
.danger-btn {
  background: var(--danger-color);
  border: none;
  color: var(--accent-text-color);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s ease;
}
.danger-btn:hover {
  filter: brightness(1.1);
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 0 20px var(--danger-color);
}
.danger-btn:active {
  transform: translateY(0) scale(0.95);
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.2s ease;
  background: var(--surface-color);
  color: var(--text-primary);
}
.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px var(--accent-color);
}
.form-textarea {
  resize: none;
  min-height: 120px;
  overflow-y: hidden;
}
.color-picker-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.form-input-color {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 50px;
  height: 40px;
  background-color: transparent;
  border: none;
  cursor: pointer;
}
.form-input-color::-webkit-color-swatch {
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.form-input-color::-moz-color-swatch {
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.header-icon-btn {
  background: var(--surface-color);
  color: var(--text-primary);
  border: none;
  padding: 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: background-color 0.2s ease, transform 0.2s ease,
    box-shadow 0.2s ease;
}
.header-icon-btn:hover {
  background-color: var(--border-hover-color);
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}
.header-icon-btn:active {
  transform: translateY(0) scale(0.95);
  background-color: var(--border-color);
}
.light-theme .header-icon-btn {
  background: var(--surface-color);
  color: var(--text-primary);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}
.light-theme .header-icon-btn:hover {
  background-color: var(--sidebar-highlight-bg);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
}
.light-theme .header-icon-btn:active {
  background-color: var(--border-color);
}
.header-icon-btn svg {
  color: var(--text-primary, #222);
  fill: var(--text-primary, #222);
  transition: color 0.2s, fill 0.2s;
}
body.light-theme .header-icon-btn svg {
  color: #222;
  fill: #222;
}
body:not(.light-theme) .header-icon-btn svg {
  color: #fff;
  fill: #fff;
}

/* === NOTLAR & GÖREVLER ORTAK === */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  flex-grow: 1;
  align-content: flex-start;
}
.note-card,
.task-card {
  background: transparent;
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  min-width: 0;
}
.note-card:hover,
.task-card:hover {
  border-color: var(--border-hover-color);
  transform: translateY(2px) scale(1.05);
}
.note-title,
.task-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  word-break: break-all;
  white-space: pre-wrap;
}
.note-content,
.task-content {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  word-break: break-all;
  white-space: pre-wrap;
}
.note-actions,
.folder-actions {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}
.note-card:hover .note-actions,
.folder-card:hover .folder-actions {
  opacity: 1;
  visibility: visible;
}

/* KART İÇİ BUTONLAR */
.edit-btn,
.delete-btn,
.restore-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  color: white;
  transition: all 0.15s ease;
  backdrop-filter: blur(10px);
  border: none;
}
.edit-btn:hover {
  background: white;
  color: black;
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}
.restore-btn:hover {
  background: var(--success-color);
  color: white;
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 0 20px var(--success-color);
}
.delete-btn:hover {
  background: var(--danger-color);
  box-shadow: 0 0 20px var(--danger-color);
  color: white;
  transform: translateY(2px) scale(1.05);
}
.edit-btn:active,
.delete-btn:active,
.restore-btn:active {
  transform: translateY(0) scale(0.8);
}
.note-card {
  min-height: 220px;
}
.note-content {
  -webkit-line-clamp: 7;
}

/* === KANBAN PANOSU === */
.kanban-board {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  overflow-x: auto;
  flex-grow: 1;
  padding-bottom: 1rem;
}
.kanban-column {
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  background-color: var(--surface-color);
  border-radius: 10px;
  max-height: 100%;
}
.column-title {
  font-size: 1rem;
  font-weight: 500;
  padding: 1rem 1.25rem;
  margin-bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}
.task-list {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1rem;
}
.task-card {
  background-color: var(--base-color);
  padding: 1rem;
  margin-bottom: 1rem;
  min-height: 150px;
}
.task-card-content {
  overflow: hidden;
  flex-grow: 1;
}
.task-title {
  margin-bottom: 0.5rem;
  display: block;
}
.task-content {
  font-size: 0.9rem;
  line-height: 1.5;
  -webkit-line-clamp: 3;
}
.task-card.is-completed {
  opacity: 0.6;
}
.task-card.is-completed .task-title,
.task-card.is-completed .task-content {
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
  color: var(--text-secondary);
}
.task-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  gap: 0.5rem;
}
.task-reminder {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background-color: var(--surface-color);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
  margin-right: auto;
}
.task-reminder svg {
  vertical-align: middle;
  margin-right: 4px;
}
.complete-btn {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  color: #e5e5e5;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.15s ease;
}
.complete-btn:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(2px) scale(1.1);
}
.task-card.is-completed .complete-btn {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}
.task-actions,
.column-actions {
  display: flex;
  gap: 0.5rem;
}
.task-actions button,
.column-actions button {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e5e5e5;
  transition: all 0.15s ease;
}
.task-actions button:hover,
.column-actions button:hover {
  background: white;
  color: black;
  transform: translateY(0) scale(1.05);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}
.task-actions button:active,
.column-actions button:active {
  transform: translateY(0) scale(0.8);
}
.column-actions .delete-btn:hover,
.task-actions .delete-btn:hover {
  background: var(--danger-color);
  color: white;
}
.column-actions .delete-btn,
.task-actions .delete-btn {
  border: none;
}

/* GÖREV KARTI BUTONLARINI SADECE HOVER'DA GÖSTER */
.task-card .complete-btn,
.task-card .task-actions {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease-in-out, visibility 0.2s ease-in-out;
}
.task-card:hover .complete-btn,
.task-card:hover .task-actions {
  opacity: 1;
  visibility: visible;
}
/* Özel açık renkli bir karta uygulanacak stiller */
.card-has-light-bg .note-title,
.card-has-light-bg .task-title,
.card-has-light-bg .note-content,
.card-has-light-bg .task-content,
.card-has-light-bg .subtask-progress-label {
  color: #121212;
}

/* Özel koyu renkli bir karta uygulanacak stiller */
.card-has-dark-bg .note-title,
.card-has-dark-bg .task-title,
.card-has-dark-bg .note-content,
.card-has-dark-bg .task-content,
.card-has-dark-bg .subtask-progress-label {
  color: #e5e5e5;
}

.card-has-light-bg .edit-btn,
.card-has-light-bg .delete-btn,
.card-has-dark-bg .edit-btn,
.card-has-dark-bg .delete-btn {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  color: white;
}

/* === DIALOG PENCERESİ === */
dialog {
  margin: auto;
  inset: 0;
  background: var(--surface-color);
  color: var(--text-primary);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  padding: 0;
  max-width: 500px;
  width: 90vw;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}
dialog::backdrop {
}
.dialog-content {
  padding: 2rem;
}
.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.dialog-title {
  font-size: 1.25rem;
  font-weight: 600;
}
.form-group {
  margin-bottom: 1.5rem;
}
.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}
.dialog-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}
.dialog-body-text {
  margin: 1.5rem 0;
  line-height: 1.6;
}
.empty-state {
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}
.task-reminder-view {
  font-size: 0.9rem;
  color: var(--text-primary);
  background-color: var(--surface-color);
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
  display: none;
  margin-bottom: 1rem;
}
.datetime-container {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.datetime-container #taskDate {
  flex-grow: 2;
}
.datetime-container #taskTime {
  flex-grow: 1;
}
.datetime-container #clearDateTimeBtn {
  padding: 0;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
#viewNoteTitle,
#viewTaskTitle,
#viewNoteContent,
#viewTaskContent {
  word-break: break-all;
  white-space: pre-wrap;
}

/* === ANİMASYONLAR === */
@keyframes backdropFadeIn {
  from {
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
  }
  to {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
  }
}
@keyframes backdropFadeOut {
  from {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
  }
  to {
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
  }
}
@keyframes dialogFadeIn {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes dialogFadeOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.98);
  }
}
dialog.fade-in {
  animation: dialogFadeIn 0.2s ease-out forwards;
}
dialog.fade-in::backdrop {
  animation: backdropFadeIn 0.2s ease-out forwards;
}
dialog.fade-out {
  animation: dialogFadeOut 0.2s ease-in forwards;
}
dialog.fade-out::backdrop {
  animation: backdropFadeOut 0.2s ease-in forwards;
}
/* === KLASÖR KARTLARI === */
.folder-card {
  background-color: var(--surface-color);
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-left-width: 5px;
  transition: all 0.2s ease;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.folder-card:hover {
  border-color: var(--border-hover-color);
  border-left-color: var(--accent-color);
  transform: translateY(-2px);
  background-color: var(--card-hover-bg);
}
.folder-icon {
  flex-shrink: 0;
}
.folder-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
}

/* === BÜYÜK DİYALOG PENCERESİ === */
dialog.dialog-large {
  max-width: 90vw;
  width: 1200px;
  height: 80vh;
}
#folderViewContent {
  height: calc(100% - 60px);
  overflow-y: auto;
  align-content: flex-start;
  padding-top: 1rem;
  padding-right: 1rem;
  padding-bottom: 1rem;
  padding-left: 1rem;
}

/* === KLASÖR KARTI AKSİYONLARI === */
.folder-actions {
  margin-left: auto;
}
.background-aurora {
  position: fixed;
  top: 0;
  left: 0;
  width: 70vmax;
  height: 70vmax;
  z-index: -1;
  opacity: 0.01;
  filter: blur(80px);
  border-radius: 50%;
  background: linear-gradient(
    -45deg,
    #2a3b4c,
    #3e5c76,
    #6e8d9c,
    #a2bac2,
    #cfe0e8,
    #6e8d9c
  );
  background-size: 200% 200%;
  animation: move-aurora-orb 40s ease-in-out infinite;
}

@keyframes move-aurora-orb {
  0% {
    transform: translate(-10%, -10%);
    background-position: 0% 50%;
  }
  25% {
    transform: translate(40%, -40%);
  }
  50% {
    transform: translate(60%, 50%);
    background-position: 100% 50%;
  }
  75% {
    transform: translate(-20%, 60%);
  }
  100% {
    transform: translate(-10%, -10%);
    background-position: 0% 50%;
  }
}
.background-aurora,
#sidebarLogo {
  will-change: transform, opacity;
}

/* GÖREV SIRALAMA ANİMASYONU */
.task-card.moving {
  transition: transform 0.25s ease-in-out;
  z-index: 10;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* === GLOBAL ARAMA MODU STİLLERİ === */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.search-overlay.visible {
  opacity: 1;
  pointer-events: auto;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  background-color: rgba(0, 0, 0, 0.2);
}
.search-bar-container {
  width: 100%;
  max-width: 600px;
}
#globalSearchInput {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 1.2rem;
  background: var(--surface-color);
  color: var(--text-primary);
  outline: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.4s ease;
  transform-origin: top center;
}
.search-results-container {
  width: 100%;
  max-width: 600px;
  margin-top: 1.5rem;
  overflow-y: auto;
  overflow-x: hidden;
}
.search-result-group {
  margin-bottom: 1.5rem;
}
.search-result-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
}
.search-result-item {
  display: flex;
  align-items: center;
  padding: 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.search-result-item:hover {
  background-color: var(--surface-color);
}
.search-result-item .icon {
  margin-right: 1rem;
  color: var(--text-secondary);
}
.search-results-container svg,
.search-result-item .icon svg {
  color: #fff;
  fill: #fff;
}
body.light-theme .search-results-container svg,
body.light-theme .search-result-item .icon svg {
  color: #000;
  fill: #000;
}
.search-result-item .text .title {
  color: var(--text-primary);
  font-weight: 500;
}
.search-result-item .text .content {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === ALT GÖREV STİLLERİ === */
.subtask-list-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.subtask-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.subtask-item input[type="text"] {
  flex-grow: 1;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}
.subtask-item .delete-subtask-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
}
.subtask-item .delete-subtask-btn:hover {
  background-color: var(--danger-color);
  color: white;
}
.add-subtask-btn {
  background: transparent;
  border: 1px dashed var(--border-color);
  color: var(--text-secondary);
  width: 100%;
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}
.add-subtask-btn:hover {
  background: var(--surface-color);
  color: var(--text-primary);
  border-color: var(--border-hover-color);
}

/* === ALT GÖREV İLERLEME ÇUBUĞU STİLLERİ === */
.subtask-progress-container {
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.subtask-progress-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.subtask-progress-bar {
  width: 100%;
  height: 6px;
  background-color: var(--surface-color);
  border-radius: 3px;
  overflow: hidden;
}
.subtask-progress-bar-inner {
  height: 100%;
  background-color: var(--accent-color);
  border-radius: 3px;
  transition: width 0.4s ease;
}

/* Tamamlanmış görevlerde ilerleme çubuğu rengi */
.task-card.is-completed .subtask-progress-bar-inner {
  background-color: var(--text-secondary);
}

/* === GÖREV GÖRÜNTÜLEME PENCERESİ ALT GÖREV STİLLERİ === */
.view-subtasks-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}
.view-subtask-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.2s ease;
}
.view-subtask-item:hover {
  color: var(--text-primary);
}
.view-subtask-item.completed span {
  text-decoration: line-through;
  opacity: 0.6;
}
/* === ÖZEL CHECKBOX (TİK KUTUSU) STİLLERİ === */
.custom-checkbox {
  appearance: none;
  -webkit-appearance: none;
  background-color: transparent;
  margin: 0;
  font: inherit;
  color: currentColor;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-hover-color);
  border-radius: 4px;
  transform: translateY(-0.075em);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.custom-checkbox::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: transform 0.15s ease-in-out;
  box-shadow: inset 1em 1em var(--accent-text-color);

  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}
.custom-checkbox:hover {
  border-color: var(--accent-color);
}
.custom-checkbox:checked {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}
.custom-checkbox:checked::before {
  transform: scale(1);
}
.custom-checkbox:disabled {
  border-color: var(--border-color);
  opacity: 0.5;
  cursor: not-allowed;
}
.custom-checkbox:disabled:checked {
  background-color: var(--border-hover-color);
}
.subtask-progress-bar-inner[style*="width: 100%"] {
  background-color: var(--success-color, #34c759);
}
dialog .custom-checkbox,
.view-subtasks-list .custom-checkbox {
  appearance: none !important;
  -webkit-appearance: none !important;
  background-color: transparent;
  margin: 0;
  font: inherit;
  color: currentColor;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-hover-color);
  border-radius: 4px;
  transform: translateY(-0.075em);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

/* === TEMA DEĞİŞTİRME BUTONU === */
.footer-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-group {
  display: flex;
  align-items: center;
}
.theme-toggle {
  padding: 0.5rem !important;
  width: auto !important;
}
.theme-icon-wrapper {
  position: relative;
  width: 24px;
  height: 24px;
  overflow: hidden;
}
.sun-icon,
.moon-icon {
  position: absolute;
  top: 0;
  left: 0;
  transition: transform 0.4s ease-out, opacity 0.4s ease-out;
}
.moon-icon {
  transform: translateY(0);
  opacity: 1;
}
.sun-icon {
  transform: translateY(120%);
  opacity: 0;
}
.light-theme .moon-icon {
  transform: translateY(-120%);
  opacity: 0;
}
.light-theme .sun-icon {
  transform: translateY(0);
  opacity: 1;
}

/* === ÖZEL RENKLİ KARTLARDAKİ BUTON HOVER EFEKT DÜZELTMESİ === */
.card-has-light-bg .edit-btn:hover,
.card-has-dark-bg .edit-btn:hover {
  background: white;
  color: black;
  transform: translateY(2px) scale(1.05);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}
.card-has-light-bg .delete-btn:hover,
.card-has-dark-bg .delete-btn:hover {
  background: var(--danger-color);
  box-shadow: 0 0 20px var(--danger-color);
  color: white;
  transform: translateY(2px) scale(1.05);
}
.card-has-light-bg .restore-btn:hover,
.card-has-dark-bg .restore-btn:hover {
  background: var(--success-color);
  box-shadow: 0 0 20px var(--success-color);
  color: white;
  transform: translateY(2px) scale(1.05);
}
.card-has-light-bg .edit-btn,
.card-has-dark-bg .edit-btn,
.card-has-light-bg .delete-btn,
.card-has-dark-bg .delete-btn,
.card-has-light-bg .restore-btn,
.card-has-dark-bg .restore-btn {
  transition: all 0.2s ease;
}
.card-has-light-bg .edit-btn:active,
.card-has-dark-bg .edit-btn:active,
.card-has-light-bg .delete-btn:active,
.card-has-dark-bg .delete-btn:active,
.card-has-light-bg .restore-btn:active,
.card-has-dark-bg .restore-btn:active {
  transform: translateY(0) scale(0.8);
}
.light-theme .sidebar {
  background: rgba(255, 255, 255, 0.6);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}
.light-theme #sidebarLogo {
  filter: invert(1);
}
.header-main > h1 {
  flex-grow: 1;
}

/* === AÇILIR MENÜ (DROPDOWN) STİLLERİ === */
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  background-color: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  min-width: 180px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  z-index: 101;
  padding: 0.5rem;
  opacity: 0;
  transform: scale(0.95) translateY(-10px);
  transform-origin: top right;
  transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}
.sidebar,
.dropdown-content,
.mobile-nav,
dialog,
#globalSearchOverlay {
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.dropdown-content.show {
  display: block;
  opacity: 1;
  transform: scale(1) translateY(0);
}
.dropdown-content a {
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  text-decoration: none;
  display: block;
  border-radius: 6px;
  font-size: 0.9rem;
}
.dropdown-content a:hover {
  background-color: var(--border-color);
}

/* === MOBİL ELEMENTLER VARSAYILAN STİLLERİ (MASAÜSTÜ İÇİN) === */
.mobile-nav,
#mobileSettingsContainer {
  display: none;
}

/* === UYGULAMA HİSSİYATI İYİLEŞTİRMELERİ === */
button,
.note-card,
.task-card,
.folder-card,
.mobile-nav-btn,
.header-icon-btn,
.dropdown-content a,
.search-result-item {
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  user-select: none;
}
.main-content {
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20px,
    black 98%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20px,
    black 98%,
    transparent 100%
  );
}

/* === MOBİL UYUMLULUK === */
@media (max-width: 768px) {
  .main-content,
  .app-container.sidebar-collapsed .main-content {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
    padding-top: calc(env(safe-area-inset-top) + 1rem);
  }

  .notes-grid {
    grid-template-columns: 1fr;
  }

  /* --- GİZLENECEK MASAÜSTÜ ELEMENTLERİ --- */
  .sidebar,
  #sidebarToggleBtn,
  .sidebar-footer {
    display: none;
  }

  /* --- GÖSTERİLECEK MOBİL ELEMENTLERİ --- */
  .mobile-nav {
    display: flex;
  }

  #mobileSettingsContainer {
    display: inline-block;
  }

  /* --- ALT NAVİGASYON MENÜSÜ STİLLERİ --- */
  .mobile-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: rgba(42, 42, 43, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    align-items: stretch;
    justify-content: space-around;
    height: calc(60px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
  }
  .light-theme .mobile-nav {
    background: rgba(255, 255, 255, 0.7);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
  }
  .mobile-nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    gap: 4px;
    font-size: 0.7rem;
    padding: 4px 0;
    transition: color 0.2s ease;
  }
  .mobile-nav-btn svg {
    color: var(--text-secondary);
    fill: var(--text-secondary);
    transition: color 0.2s ease, fill 0.2s ease;
  }
  .mobile-nav-btn.active span {
    color: var(--accent-color);
  }
  .mobile-nav-btn.active svg {
    color: var(--accent-color);
    fill: var(--accent-color);
  }
  .app-container:not(.sidebar-collapsed)::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    z-index: 9;
  }
}

#mobileSettingsDropdown .nav-btn {
  background-color: transparent;
  border: none;
  color: var(--text-primary);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.75rem 1rem;
  gap: 1rem;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}
#mobileSettingsDropdown .nav-btn span {
  white-space: nowrap;
}
#mobileSettingsDropdown .nav-btn.theme-toggle {
  width: 100% !important;
  padding: 0.75rem 1rem !important;
}
#mobileSettingsDropdown .nav-btn svg {
  fill: var(--text-primary);
  flex-shrink: 0;
}
#mobileSettingsDropdown .nav-btn:hover {
  background-color: var(--border-color);
}

/* === SAYFA GEÇİŞ EFEKTİ === */
#contentContainer {
  transition: opacity 0.2s ease-in-out;
}
#contentContainer.is-changing {
  opacity: 0;
}