@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&display=swap');

:root {
    --primary: #007AFF;
    --primary-light: #E5F1FF;
    --bg-main: #F2F2F7;
    --card-bg: #FFFFFF;
    --text-main: #1D1D1F;
    --text-muted: #86868B;
    --border: #E5E5E7;
    --success: #34C759;
    --danger: #FF3B30;
    --sidebar-width: 280px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
aside {
    width: var(--sidebar-width);
    background: var(--card-bg);
    border-right: 1px solid var(--border);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 0.5rem;
}

.sidebar-links a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    border-radius: 1rem;
    transition: 0.2s;
    margin-bottom: 0.5rem;
}

.sidebar-links a:hover, .sidebar-links a.active {
    background: var(--primary-light);
    color: var(--primary);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

/* Main */
main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem 3rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease-out;
}

/* Admin Colorful Cards */
.member-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    background: #FFF;
    border-radius: 1.5rem;
    margin-bottom: 1.25rem;
    border: 2px solid transparent;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: fadeInUp 0.5s ease-out forwards;
    cursor: pointer;
    position: relative;
}

/* Gender-based Colorful Borders */
.member-item.male { border-left: 6px solid #007AFF; }
.member-item.female { border-left: 6px solid #FF2D55; }

.member-item:hover {
    transform: scale(1.03) translateX(10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.member-item.male:hover { border-color: rgba(0, 122, 255, 0.3); background: #F8FBFF; }
.member-item.female:hover { border-color: rgba(255, 45, 85, 0.3); background: #FFF8FA; }

.member-avatar {
    width: 60px;
    height: 60px;
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
    transition: 0.3s;
}

.member-item.male .member-avatar { background: #E5F1FF; color: #007AFF; }
.member-item.female .member-avatar { background: #FFF0F5; color: #FF2D55; }

.member-item:hover .member-avatar { transform: rotate(10deg); }

.member-branch-tag {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 0.4rem 0.8rem;
    border-radius: 2rem;
    letter-spacing: 1px;
}

.member-item.male .member-branch-tag { background: #E5F1FF; color: #007AFF; }
.member-item.female .member-branch-tag { background: #FFF0F5; color: #FF2D55; }

.member-actions {
    margin-left: auto;
    opacity: 0;
    transition: 0.3s;
}

.member-item:hover .member-actions { opacity: 1; }

/* Stats & Containers */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: 0.3s;
    animation: fadeInUp 0.7s ease-out;
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.glass-card {
    background: var(--card-bg);
    border-radius: 2.5rem;
    padding: 3rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

/* Premium Form Elements */
.form-group { margin-bottom: 1.5rem; }

label { 
    display: block; 
    margin-bottom: 0.75rem; 
    font-weight: 700; 
    font-size: 0.9rem; 
    color: var(--text-main);
    letter-spacing: 0.3px;
}

input, select, textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: #F8F9FA;
    border: 1px solid #E5E5E7;
    border-radius: 1.25rem;
    outline: none;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

input:hover, select:hover {
    border-color: var(--primary-light);
}

input:focus, select:focus {
    background: #FFFFFF;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light), 0 4px 12px rgba(0, 122, 255, 0.1);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2386868B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.25rem center;
    background-size: 1.2rem;
    padding-right: 3rem;
}

/* Premium Search Bar */
#member-search {
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: 50px; /* Pill shape */
    padding-left: 3rem !important;
    height: 55px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

#member-search:focus {
    width: 400px; /* Expands on focus */
}

#status-filter {
    border-radius: 50px;
    height: 55px;
    padding: 0 2.5rem 0 1.5rem;
}

.btn {
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 1.25rem;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: 0.3px;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.15);
}

.btn:hover {
    background: #0063CC;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 24px rgba(0, 122, 255, 0.25);
}

.btn-secondary { 
    background: #FFFFFF; 
    color: var(--text-main); 
    border: 1px solid var(--border);
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.btn-secondary:hover { 
    background: var(--bg-main);
    border-color: var(--primary-light);
}

/* Responsive Enhancements */

/* Tablet & Smaller Screens */
@media (max-width: 1100px) {
    :root { --sidebar-width: 240px; }
    main { padding: 2rem; }
    .grid-main { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
    aside { transform: translateX(-100%); transition: transform 0.3s ease; }
    aside.active { transform: translateX(0); }
    main { margin-left: 0; width: 100%; padding: 1.5rem; }
    
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    header h1 { font-size: 1.5rem; }
    .stats-grid { grid-template-columns: 1fr; }
    
    .glass-card { padding: 1.5rem; border-radius: 1.5rem; }
    
    #member-modal .glass-card { width: 100%; height: 100%; border-radius: 0; }
    #member-form > div { grid-template-columns: 1fr !important; gap: 1.5rem !important; }
    
    #member-search { width: 100% !important; }
    
    .member-item { padding: 1rem; }
    .member-avatar { width: 50px; height: 50px; font-size: 1.2rem; }
}

/* Tree Container Fluidity */
#tree-preview-container, #standalone-tree-container {
    width: 100%;
    min-height: 400px;
    touch-action: pan-x pan-y;
}