:root {
  --bg-dark: #1a202c; --bg-panel: #2d3748; --primary-accent: #4299e1;
  --text-light: #edf2f7; --text-muted: #a0aec0; --border-color: #4a5568;
  --success-color: #48bb78; --danger-color: #f56565;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  font-family: 'Vazirmatn', sans-serif; background-color: var(--bg-dark);
  color: var(--text-light); margin: 0; padding: 20px;
  display: flex; justify-content: center; align-items: center; min-height: 100vh;
}

/* استایل‌های صفحه لاگین */
.login-container { width: 100%; display: flex; justify-content: center; }
.login-box {
  background-color: var(--bg-panel); padding: 40px; border-radius: 16px;
  width: 100%; max-width: 400px; text-align: center;
  border: 1px solid var(--border-color); box-shadow: var(--shadow);
}
.login-box .logo { max-height: 60px; margin-bottom: 20px; filter: grayscale(1) brightness(3); }
.login-box h2 { margin-bottom: 25px; }
.login-box .input-group { position: relative; margin-bottom: 20px; }
.login-box .input-group i {
  position: absolute; top: 50%; right: 15px; transform: translateY(-50%);
  color: var(--text-muted);
}
.login-box input {
  width: 100%; padding: 12px 45px 12px 15px; border-radius: 8px;
  border: 1px solid var(--border-color); background-color: var(--bg-dark);
  color: var(--text-light); font-size: 16px; box-sizing: border-box;
}
.login-box .btn { width: 100%; padding: 12px; font-size: 18px; background-color: var(--primary-accent); margin-top: 10px; }
.error-message { color: var(--danger-color); margin-top: 15px; min-height: 20px; }

/* استایل‌های داشبورد */
.dashboard-container {
  width: 100%; max-width: 700px; background-color: var(--bg-panel);
  border-radius: 16px; padding: 30px 40px; box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}
.app-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 30px; border-bottom: 1px solid var(--border-color); padding-bottom: 20px;
}
.app-header h1 { font-size: 24px; margin: 0; }
.btn-logout { background-color: var(--danger-color); padding: 8px 16px; }

/* استایل‌های بخش فیلتر */
.filter-wrapper { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 20px; }
.filter-group { flex: 1; min-width: 150px; display: flex; flex-direction: column; }
.filter-group label { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }
.filter-group select {
  width: 100%;
  padding: 10px; border-radius: 8px;
  border: 1px solid var(--border-color); background-color: var(--bg-dark);
  color: var(--text-light); font-size: 16px; cursor: pointer;
}
.filter-group select:focus { outline: none; border-color: var(--primary-accent); }
.export-group {
    justify-content: flex-end;
    align-self: flex-end;
}

.btn-export {
    background-color: #2E7D32;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-family: 'Vazirmatn', sans-serif;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 44px; /* برای هم‌ترازی با فیلترها */
}

.btn-export:hover {
    background-color: #1B5E20;
}

.btn-export:disabled {
    background-color: var(--text-muted);
    cursor: not-allowed;
}

/* بخش جستجو */
.search-wrapper { position: relative; }
.search-box { position: relative; }
.search-icon { position: absolute; top: 50%; right: 20px; transform: translateY(-50%); color: var(--text-muted); }
#searchInput {
  width: 100%; padding: 15px 85px 15px 20px; font-size: 16px; border-radius: 12px; 
  border: 1px solid var(--border-color); background-color: #1a202c; color: var(--text-light);
  transition: all 0.3s ease; box-sizing: border-box;
}
#searchInput:focus { outline: none; border-color: var(--primary-accent); box-shadow: 0 0 0 4px rgba(66, 153, 225, 0.3); }
.clear-search-btn {
  position: absolute; top: 50%; left: 20px; transform: translateY(-50%);
  color: var(--text-muted); font-size: 18px; cursor: pointer;
  transition: color 0.2s, transform 0.2s;
  display: none;
}
.clear-search-btn:hover { color: var(--text-light); transform: translateY(-50%) scale(1.2); }

/* لیست پیشنهادات */
#suggestions-container { position: absolute; top: 100%; width: 100%; z-index: 10; margin-top: 5px; }
#suggestions-list {
  list-style: none; padding: 0; margin: 0; background-color: #2d3748;
  border-radius: 12px; border: 1px solid var(--border-color);
  max-height: 250px; overflow-y: auto; box-shadow: var(--shadow);
}
#suggestions-list li { padding: 12px 20px; cursor: pointer; border-bottom: 1px solid var(--border-color); transition: background-color 0.2s; }
#suggestions-list li:last-child { border-bottom: none; }
#suggestions-list li:hover { background-color: var(--primary-accent); color: white; }
#suggestions-list li .name { font-weight: bold; }
#suggestions-list li .code { font-size: 12px; color: var(--text-muted); }
#suggestions-list li:hover .code { color: #e2e8f0; }
#results-container { min-height: 300px; margin-top: 25px; }
.loader { width: 48px; height: 48px; border: 5px solid var(--primary-accent); border-bottom-color: transparent; border-radius: 50%; display: none; margin: 50px auto; animation: rotation 1s linear infinite; }
@keyframes rotation { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.state-message { text-align: center; padding: 40px; color: var(--text-muted); display: flex; flex-direction: column; justify-content: center; align-items: center; }
.state-message i { font-size: 48px; margin-bottom: 20px; opacity: 0.5; }

/* کارت دانش آموز */
.student-card { display: none; animation: pop-in 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.student-card .card-header { display: flex; align-items: center; padding: 25px; background: linear-gradient(135deg, #2d3748, #1a202c); border-bottom: 1px solid var(--border-color); justify-content: space-between; }
.header-main-info { display: flex; align-items: center; }
.avatar { width: 60px; height: 60px; border-radius: 50%; background-color: var(--primary-accent); color: white; display: flex; justify-content: center; align-items: center; font-size: 24px; font-weight: bold; margin-left: 20px; flex-shrink: 0; }
.student-identity h2 { margin: 0; font-size: 22px; }
.student-identity p { margin: 5px 0 0; color: var(--text-muted); }
.status-indicator { display: flex; flex-direction: column; align-items: center; text-align: center; }
.status-light { width: 20px; height: 20px; border-radius: 50%; margin-bottom: 8px; box-shadow: 0 0 15px var(--color); }
.status-light.active { --color: var(--success-color); background-color: var(--success-color); }
.status-light.inactive { --color: var(--danger-color); background-color: var(--danger-color); }
.status-text { font-size: 14px; font-weight: bold; }
.status-text.active { color: var(--success-color); }
.status-text.inactive { color: var(--danger-color); }
.student-card .card-body { padding: 15px 25px; }
.info-row { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; border-bottom: 1px solid var(--border-color); }
.info-row:last-child { border-bottom: none; }
.info-label { display: flex; align-items: center; gap: 10px; color: var(--text-muted); }
.info-value { font-weight: bold; direction: ltr; text-align: right; }
.card-footer { padding: 20px 25px; text-align: left; }
.btn-copy {
    background-color: var(--primary-accent); color: white;
    border: none; border-radius: 8px; padding: 10px 20px;
    font-size: 14px; cursor: pointer; transition: background-color 0.2s;
    font-family: 'Vazirmatn', sans-serif;
}
.btn-copy:hover { background-color: #3182ce; }
.btn-copy.copied { background-color: var(--success-color); }