/* تعریف متغیرهای CSS برای یکپارچگی */
:root {
  --primary-color: #1a202c; /* خاکستری بسیار تیره */
  --accent-color: #ed1c24; /* قرمز تم */
  --accent-hover: #c91018; /* قرمز تیره‌تر */
  --success-color: #10b981; /* سبز مدرن */
  --success-hover: #059669;
  --warning-color: #f59e0b; /* نارنجی */
  --warning-hover: #d97706;
  --clear-color: #6b7280; /* خاکستری */
  --clear-hover: #4b5563;
  --background-color: #f3f4f6; /* خاکستری بسیار روشن */
  --card-background: #ffffff;
  --border-color: #e5e7eb;
  --shadow-color: rgba(0, 0, 0, 0.06);
  --shadow-hover-color: rgba(0, 0, 0, 0.12);
  --font-family: 'vazir', 'Segoe UI', Tahoma, sans-serif;
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* استایل‌های کلی */
body {
  font-family: var(--font-family);
  direction: rtl;
  padding: 0;
  background-color: var(--background-color);
  color: #374151;
  line-height: 1.6;
  margin: 0;
  box-sizing: border-box;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

h1, h2 {
  color: var(--primary-color);
  margin-bottom: 25px;
  text-align: center;
  font-weight: 700;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }

/* دکمه افزودن یادآوری */
.add-reminder-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px auto;
  background: var(--accent-color);
  color: #fff;
  padding: 14px 28px;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 14px var(--shadow-color);
}
.add-reminder-btn::before { content: '➕'; font-size: 1.1rem; }
.add-reminder-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow-hover-color);
}
.add-reminder-btn:active { transform: translateY(0); }

/* بخش فرم */
.form-section {
  background: var(--card-background);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 10px 25px var(--shadow-color);
  margin-bottom: 40px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  max-height: 0;
  visibility: hidden;
  overflow: hidden;
}
.form-section.show {
  opacity: 1;
  transform: translateY(0);
  max-height: 1500px;
  visibility: visible;
}
.form-section.hidden {
  opacity: 0;
  transform: translateY(20px);
  max-height: 0;
  visibility: hidden;
  padding: 0 30px;
  margin-bottom: 0;
}
.form-section h1 { color: var(--accent-color); font-size: 1.8rem; margin-bottom: 25px; }

#reminder-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
#reminder-form label { display: block; margin-bottom: 8px; font-weight: 600; color: #4b5563; }
#reminder-form input[type="text"],
#reminder-form textarea,
#reminder-form select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font-family);
  background-color: #f9fafb;
  transition: var(--transition);
}
#reminder-form input:focus,
#reminder-form textarea:focus,
#reminder-form select:focus {
  border-color: var(--accent-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.1);
  background-color: #fff;
}
#reminder-form textarea { resize: vertical; min-height: 100px; }
#reminder-form select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24'%3E%3Cpath fill='%236b7280' d='M7.41 8.59L12 13.17l4.59-4.58L18 10l-6 6-6-6 1.41-1.41z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: 12px center; padding-right: 40px; }
#reminder-form button[type="submit"] {
  grid-column: 1 / -1;
  background: var(--accent-color);
  color: #fff;
  padding: 14px 30px;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
  justify-self: center;
  width: fit-content;
}
#reminder-form button[type="submit"]:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-hover-color);
}
.form-message {
  grid-column: 1 / -1;
  text-align: center;
  padding: 12px;
  border-radius: 8px;
  margin-top: 15px;
  font-weight: 500;
  display: none;
}
.form-message.show { display: block; }
.form-message.success { background-color: rgba(16, 185, 129, 0.1); color: var(--success-color); border: 1px solid rgba(16, 185, 129, 0.3); }
.form-message.error { background-color: rgba(239, 68, 68, 0.1); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.3); }

.client-select-container { display: flex; flex-direction: column; gap: 8px; }
#client-search { padding: 10px; font-size: 14px; border: 1px solid var(--border-color); border-radius: 8px; }

/* --- بخش فیلترها (نسخه حرفه‌ای) --- */
#filters-container {
  background: var(--card-background);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 15px var(--shadow-color);
  margin-bottom: 30px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  align-items: flex-end;
  justify-content: space-between;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  flex-grow: 1;
}

.filter-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 150px;
}

.filter-item label {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 14px;
}

.filter-item select {
  padding: 10px 35px 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-family);
  background-color: #f9fafb;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 12px center;
  cursor: pointer;
}

.filter-item select:focus {
  border-color: var(--accent-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.1);
  background-color: #fff;
}

/* استایل برای دراپ‌داون سفارشی مشتری */
.custom-dropdown {
  position: relative;
  width: 100%;
}

.custom-dropdown input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-family);
  background-color: #f9fafb;
  transition: var(--transition);
  cursor: pointer;
}

.custom-dropdown input:focus {
  border-color: var(--accent-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.1);
  background-color: #fff;
}

.dropdown-list {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 8px 20px var(--shadow-hover-color);
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
  margin-top: 5px;
  display: none; /* مخفی به صورت پیش‌فرض */
}

.dropdown-list.show {
  display: block;
}

.dropdown-list li {
  padding: 10px 12px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
  border-bottom: 1px solid #f3f4f6;
}

.dropdown-list li:last-child {
  border-bottom: none;
}

.dropdown-list li:hover {
  background-color: #f3f4f6;
  color: var(--accent-color);
}

.dropdown-list li.selected {
  background-color: rgba(237, 28, 36, 0.1);
  color: var(--accent-color);
  font-weight: 600;
}

/* استایل دکمه‌های فیلتر */
.filter-actions {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.filter-actions button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

#apply-filters-btn {
  background: var(--accent-color);
  color: #fff;
}
#apply-filters-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(237, 28, 36, 0.3);
}

#clear-filters-btn {
  background: var(--clear-color);
  color: #fff;
}
#clear-filters-btn:hover {
  background: var(--clear-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(107, 114, 128, 0.3);
}

/* بخش مرتب‌سازی */
#sort-options {
  background: var(--card-background);
  padding: 20px 25px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 15px var(--shadow-color);
  margin-bottom: 30px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 15px;
}
#sort-options label {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 15px;
}
#sort-options select {
  padding: 10px 35px 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-family);
  background-color: #f9fafb;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 12px center;
  cursor: pointer;
}
#sort-options select:focus {
  border-color: var(--accent-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.1);
  background-color: #fff;
}

/* بخش لیست یادآورها */
#reminder-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 25px;
}

/* کارت جدید یادآور */
.reminder-card {
  background: var(--card-background);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px var(--shadow-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.reminder-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px var(--shadow-hover-color);
  border-color: var(--accent-color);
}

/* هدر کارت */
.reminder-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
  background-color: #fafbfc;
}
.reminder-card .card-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.reminder-card .card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0;
  transition: var(--transition);
}
.reminder-card:hover .card-title { color: var(--accent-color); }
.reminder-card .priority-indicator { font-size: 1.3rem; }
.reminder-card .status-icon { font-size: 1.5rem; }

/* بدنه کارت */
.reminder-card .card-body {
  padding: 20px;
  flex-grow: 1;
}
.reminder-card .card-description {
  font-size: 15px;
  color: #6b7280;
  margin: 0 0 20px 0;
  line-height: 1.7;
}
.reminder-card .card-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.reminder-card .meta-item {
  font-size: 14px;
  color: #4b5563;
  display: flex;
  align-items: center;
  gap: 8px;
}
.reminder-card .meta-item strong { font-weight: 600; color: #374151; }

/* فوتر کارت */
.reminder-card .card-footer {
  padding: 15px 20px;
  background-color: #fafbfc;
  border-top: 1px solid var(--border-color);
}
.action-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
}
.action-buttons button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  color: #fff;
}
.action-buttons .done { background: var(--success-color); }
.action-buttons .done:hover { background: var(--success-hover); }
.action-buttons .edit { background: var(--warning-color); }
.action-buttons .edit:hover { background: var(--warning-hover); }
.action-buttons .delete { background: #ef4444; }
.action-buttons .delete:hover { background: #dc2626; }

/* وضعیت انجام شده */
.reminder-card.status-done {
  opacity: 0.7;
  background-color: #f9fafb;
}
.reminder-card.status-done .card-title {
  text-decoration: line-through;
  color: #9ca3af;
}
.reminder-card.status-done .card-body,
.reminder-card.status-done .card-meta,
.reminder-card.status-done .meta-item {
  color: #9ca3af;
}

/* رسپانسیو */
@media (max-width: 768px) {
  .container { padding: 15px; }
  #filters-container, #sort-options { flex-direction: column; align-items: stretch; }
  .filter-group { flex-direction: column; }
  .filter-item { min-width: unset; }
  .filter-actions { justify-content: center; margin-top: 10px; }
  #reminder-list { grid-template-columns: 1fr; }
  .action-buttons { flex-direction: column; }
  .action-buttons button { width: 100%; }
}