:root {
  --primary-color: #6366f1;
  --surface-color: #fff;
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --border-radius: 8px;
  --header-height: 60px;
  --sidebar-width: 220px;
  --font-family: "Inter", Arial, sans-serif;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background: #f6f7fb;
  color: #222;
}

header {
  height: var(--header-height);
  background: var(--primary-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  box-shadow: var(--box-shadow);
}

nav {
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background 0.2s;
}

nav a.active,
nav a:hover {
  background: rgba(255, 255, 255, 0.15);
}

nav a.active,
nav a:active {
  background: #e0e7ff;
  color: #3730a3;
  font-weight: bold;
  text-decoration: underline;
}

.page-section {
  display: none;
  max-width: 800px;
  margin: 2rem auto;
  background: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 2rem;
}

.page-section.active {
  display: block;
}


.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 350px;
  margin: 2rem auto 0 auto;
  background: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 2rem;
}
.auth-form input {
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}
.auth-form button {
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.auth-form button:hover {
  background: #4f46e5;
}
.auth-form p {
  margin: 0;
  font-size: 0.95rem;
  text-align: center;
}
.auth-error {
  color: #dc3545;
  font-size: 0.95rem;
  min-height: 1.2em;
  text-align: center;
}


button {
  font-family: inherit;
}


#tasks-list,
#notes-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}


.note-item {
  background: #f8fafc;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  border-left: 6px solid #6366f1;
  transition: box-shadow 0.2s, border-color 0.2s;
  min-height: 260px;
  max-height: 260px;
  justify-content: space-between;
}
.note-item[data-color="blue"] {
  border-left-color: #6366f1;
}
.note-item[data-color="green"] {
  border-left-color: #22c55e;
}
.note-item[data-color="yellow"] {
  border-left-color: #eab308;
}
.note-item[data-color="red"] {
  border-left-color: #dc2626;
}
.note-item[data-color="pink"] {
  border-left-color: #ec4899;
}
.note-item[data-color="teal"] {
  border-left-color: #14b8a6;
}
.note-item:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.1);
}
.note-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.note-title {
  font-size: 1.1rem;
  font-weight: bold;
  color: #222;
}
.note-content {
  color: #444;
  margin-bottom: 0.5rem;
  word-break: break-word;
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  min-height: 80px;
  max-height: 120px;
}
.note-footer {
  font-size: 0.85rem;
  color: #888;
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.note-user {
  color: #6366f1;
  font-weight: 500;
}
.note-date {
  color: #888;
}
.note-item button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: #dc3545;
}


.note-filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.note-filters select,
.note-filters input {
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}


.add-note-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.add-note-form input,
.add-note-form textarea {
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}
.add-note-form textarea {
  flex: 1 1 100%;
  min-height: 60px;
  resize: vertical;
}
.add-note-form button {
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.add-note-form button:hover {
  background: #4f46e5;
}
.add-note-form select {
  padding: 0.7rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  background: #fff;
  margin-bottom: 0.2rem;
}


#notes-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}


.task-filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.task-filters select {
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}


.task-item {
  background: #f8fafc;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  border-left: 6px solid #6366f1;
  margin-bottom: 1rem;
  transition: box-shadow 0.2s, border-color 0.2s;
  min-height: 260px;
  max-height: 260px;
  justify-content: space-between;
}
.task-item[data-color="blue"] {
  border-left-color: #6366f1;
}
.task-item[data-color="green"] {
  border-left-color: #22c55e;
}
.task-item[data-color="yellow"] {
  border-left-color: #eab308;
}
.task-item[data-color="red"] {
  border-left-color: #dc2626;
}
.task-item[data-color="pink"] {
  border-left-color: #ec4899;
}
.task-item[data-color="teal"] {
  border-left-color: #14b8a6;
}
.task-item:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.1);
}
.task-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.task-title {
  font-size: 1.2rem;
  font-weight: bold;
}
.task-description {
  margin-bottom: 1rem;
  color: #666;
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  min-height: 80px;
  max-height: 120px;
}
.task-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  font-size: 0.85rem;
  color: #888;
  gap: 1rem;
}
.task-user {
  color: #6366f1;
  font-weight: 500;
}
.task-date {
  color: #888;
}
.task-actions button {
  margin-left: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}


#add-task-btn {
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-bottom: 0.5rem;
}
#add-task-btn:hover {
  background: #4f46e5;
}

#logout-btn {
  background: #dc3545;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-left: 1rem;
  transition: background 0.2s;
}
#logout-btn:hover {
  background: #b91c1c;
}


.mobile-user-info button {
  background: #dc3545;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.mobile-user-info button:hover {
  background: #b91c1c;
}


.task-filters input[type="text"] {
  padding: 0.5rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}


.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(30, 41, 59, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-content {
  background: #fff;
  border-radius: 12px !important;
  box-shadow: 0 8px 32px rgba(30, 41, 59, 0.18);
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  min-width: 320px;
  max-width: 95vw;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: relative;
  min-height: 0;
  max-height: 80vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.close-button {
  background: none;
  border: none;
  font-size: 1.7rem;
  color: #888;
  cursor: pointer;
  transition: color 0.2s;
}
.close-button:hover {
  color: #dc2626;
}
#add-task-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
#add-task-form input,
#add-task-form textarea,
#add-task-form select {
  padding: 0.7rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}
#add-task-form textarea {
  min-height: 60px;
  resize: vertical;
}
#add-task-form button[type="submit"],
#edit-task-form button[type="submit"] {
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.7rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 0.7rem;
  margin-bottom: 0.2rem;
  box-shadow: 0 1px 4px rgba(99, 102, 241, 0.07);
  display: block;
  width: 100%;
}
#add-task-form button[type="submit"]:hover,
#edit-task-form button[type="submit"]:hover {
  background: #4f46e5;
}
#add-task-form select,
#edit-task-form select,
#edit-task-form .edit-task-select-row select {
  background: #fff
    url('data:image/svg+xml;utf8,<svg fill="%236366f1" height="20" viewBox="0 0 20 20" width="20" xmlns="http://www.w3.org/2000/svg"><path d="M7.293 7.293a1 1 0 011.414 0L10 8.586l1.293-1.293a1 1 0 111.414 1.414l-2 2a1 1 0 01-1.414 0l-2-2a1 1 0 010-1.414z"/></svg>')
    no-repeat right 0.8em center/1.2em 1.2em !important;
  background-color: #fff !important;
  background-size: 1.2em 1.2em !important;
  background-position: right 0.8em center !important;
  border: 1px solid #ddd;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 2.5em;
  min-width: 120px;
  margin: 0;
}
#edit-task-form select + select {
  margin-top: 0.5rem;
}




.read-more {
  display: inline-block;
  margin-top: 0.5em;
  color: #6366f1;
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
  font-size: 0.98em;
}
.read-more:hover {
  color: #3730a3;
}
.readmore-content {
  max-height: 350px;
  overflow-y: auto;
  background: #f8fafc;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  font-size: 1.05em;
}




.task-edit-btn,
.note-edit-btn {
  background: #e0e7ff;
  color: #3730a3;
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-right: 0.3rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 1px 4px rgba(99, 102, 241, 0.07);
}
.task-edit-btn:hover,
.note-edit-btn:hover {
  background: #6366f1;
  color: #fff;
}

#add-task-form select,
#edit-task-form select {
  padding: 0.7rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  background: #fff;
  margin-bottom: 0.5rem;
  margin-right: 0.5rem;
  min-width: 120px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}
#add-task-form select:last-child,
#edit-task-form select:last-child {
  margin-right: 0;
}
#add-task-form select:focus,
#edit-task-form select:focus {
  border-color: #6366f1;
  outline: none;
  box-shadow: 0 0 0 2px #e0e7ff;
}




#edit-task-form .edit-task-select-row {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.7rem;
  margin-bottom: 0.7rem;
}
#edit-task-form .edit-task-select-row label {
  font-size: 1rem;
  color: #444;
  margin-right: 0.3rem;
}
#edit-task-form .edit-task-select-row select {
  background: #fff
    url('data:image/svg+xml;utf8,<svg fill="%236366f1" height="20" viewBox="0 0 20 20" width="20" xmlns="http://www.w3.org/2000/svg"><path d="M7.293 7.293a1 1 0 011.414 0L10 8.586l1.293-1.293a1 1 0 111.414 1.414l-2 2a1 1 0 01-1.414 0l-2-2a1 1 0 010-1.414z"/></svg>')
    no-repeat right 0.8em center/1.2em 1.2em;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 2.5em;
  min-width: 120px;
  margin: 0;
}

#edit-task-form input[type="text"] {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1.08rem;
  margin-bottom: 0.7rem;
  background: #fff;
  transition: border 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
#edit-task-form input[type="text"]:focus {
  border-color: #6366f1;
  outline: none;
  box-shadow: 0 0 0 2px #e0e7ff;
}