:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --accent: #ec4899;
    --bg: #f1f5f9;
    --surface: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #10b981;
    --danger: #ef4444;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ---------- Header ---------- */
.app-header {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 45%, #ec4899 100%);
    color: #fff;
    padding: 32px 0;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
    position: relative;
    overflow: hidden;
}

.app-header::after {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
    gap: 20px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 18px;
}

.header-icon {
    font-size: 42px;
    background: rgba(255, 255, 255, 0.2);
    padding: 16px;
    border-radius: 16px;
    backdrop-filter: blur(6px);
}

.app-header h1 {
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin-top: 2px;
}

.header-stats {
    display: flex;
    gap: 16px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(6px);
    padding: 14px 26px;
    border-radius: 14px;
    text-align: center;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.stat-number {
    font-size: 26px;
    font-weight: 700;
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

/* ---------- Container ---------- */
.container {
    max-width: 1200px;
    margin: -24px auto 40px;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

/* ---------- Toolbar ---------- */
.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 360px;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    background: var(--surface);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    padding: 11px 18px;
    border-radius: 10px;
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:active {
    transform: scale(0.97);
}

.btn-reset {
    background: var(--surface);
    color: var(--primary-dark);
    border: 1px solid var(--border);
}

.btn-reset:hover {
    background: #eef2ff;
}

/* ---------- Table ---------- */
.table-wrapper {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 850px;
}

.data-table thead {
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    color: #fff;
}

.data-table th {
    padding: 16px 18px;
    text-align: left;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 600;
}

.data-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background 0.15s;
}

.data-table tbody tr:hover {
    background: #f8fafc;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.id-badge {
    display: inline-block;
    background: #eef2ff;
    color: var(--primary-dark);
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 13px;
}

.emp-name {
    font-weight: 600;
    color: var(--text);
}

.skill-tag {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
}

.skill-gen-ai {
    background: linear-gradient(135deg, #ec4899, #f43f5e);
}

.skill-python {
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
}

.skill-react {
    background: linear-gradient(135deg, #06b6d4, #14b8a6);
}

.action-col {
    text-align: center;
}

.action-buttons {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.icon-btn {
    width: 38px;
    height: 38px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.icon-btn:hover {
    transform: translateY(-2px);
}

.btn-edit {
    background: #eef2ff;
    color: var(--primary-dark);
}

.btn-edit:hover {
    background: var(--primary);
    color: #fff;
}

.btn-delete {
    background: #fef2f2;
    color: var(--danger);
}

.btn-delete:hover {
    background: var(--danger);
    color: #fff;
}

.btn-save {
    background: #ecfdf5;
    color: var(--success);
}

.btn-save:hover {
    background: var(--success);
    color: #fff;
}

.btn-cancel {
    background: #f8fafc;
    color: var(--text-muted);
}

.btn-cancel:hover {
    background: var(--text-muted);
    color: #fff;
}

/* ---------- Inline edit inputs ---------- */
.edit-input,
.edit-select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--primary);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.editing-row {
    background: #fafaff !important;
}

/* ---------- Empty message ---------- */
.empty-msg {
    text-align: center;
    color: var(--text-muted);
    padding: 30px;
    font-size: 15px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .app-header h1 {
        font-size: 24px;
    }
    .header-icon {
        font-size: 32px;
        padding: 12px;
    }
    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        max-width: none;
    }
}