:root {
    --k-primary: #1e40af;
    --k-primary-hover: #1e3a8a;
    --k-bg: #f8fafc;
    --k-card: #ffffff;
    --k-border: #e2e8f0;
    --k-text: #0f172a;
    --k-muted: #64748b;
    --k-success: #16a34a;
    --k-warning: #d97706;
    --k-danger: #dc2626;
}

.ketheyo-container {
    max-width: 1200px;
    margin: 20px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--k-text);
    background: var(--k-bg);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--k-border);
}

.ketheyo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--k-border);
    margin-bottom: 20px;
}

.ketheyo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ketheyo-brand h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
}

.ketheyo-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.ketheyo-badge-primary { background: #dbeafe; color: var(--k-primary); }
.ketheyo-badge-success { background: #dcfce7; color: var(--k-success); }
.ketheyo-badge-warning { background: #fef3c7; color: var(--k-warning); }
.ketheyo-badge-danger  { background: #fee2e2; color: var(--k-danger); }

.ketheyo-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--k-border);
}

.ketheyo-tab-btn {
    background: none;
    border: none;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 600;
    color: var(--k-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: 0.2s;
}

.ketheyo-tab-btn.active {
    color: var(--k-primary);
    border-bottom-color: var(--k-primary);
}

.ketheyo-tab-content { display: none; }
.ketheyo-tab-content.active { display: block; }

.ketheyo-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.ketheyo-input {
    padding: 10px 14px;
    border: 1px solid var(--k-border);
    border-radius: 8px;
    font-size: 14px;
    min-width: 260px;
    background: #fff;
}

.ketheyo-btn {
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    display: inline-block;
    transition: 0.2s;
}

.ketheyo-btn-primary { background: var(--k-primary); color: #fff; }
.ketheyo-btn-primary:hover { background: var(--k-primary-hover); }
.ketheyo-btn-danger { background: var(--k-danger); color: #fff; }
.ketheyo-btn-outline { border: 1px solid var(--k-border); background: #fff; color: var(--k-text); }
.ketheyo-btn-sm { padding: 6px 12px; font-size: 13px; }
.ketheyo-w-100 { width: 100%; }

/* Grid Τμημάτων */
.ketheyo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.ketheyo-card {
    background: var(--k-card);
    border: 1px solid var(--k-border);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ketheyo-card h4 { margin: 10px 0; font-size: 18px; }
.ketheyo-card-meta { font-size: 13px; color: var(--k-muted); line-height: 1.7; margin-bottom: 15px; }

.ketheyo-seats-bar {
    background: #e2e8f0;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}

.ketheyo-seats-fill {
    height: 100%;
    background: var(--k-success);
    transition: width 0.3s;
}
.ketheyo-seats-fill.full { background: var(--k-danger); }

/* Πίνακες */
.ketheyo-table-responsive { overflow-x: auto; background: #fff; border-radius: 10px; border: 1px solid var(--k-border); }
.ketheyo-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
.ketheyo-table th, .ketheyo-table td { padding: 12px 16px; border-bottom: 1px solid var(--k-border); }
.ketheyo-table th { background: #f1f5f9; font-weight: 600; color: var(--k-muted); }

/* Modals */
.ketheyo-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0; top: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.6);
    overflow-y: auto;
}

.ketheyo-modal-content {
    background: #fff;
    margin: 5% auto;
    padding: 25px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.ketheyo-modal-lg { max-width: 800px; }

.ketheyo-close {
    position: absolute;
    right: 20px; top: 15px;
    font-size: 24px;
    cursor: pointer;
    color: var(--k-muted);
}

.ketheyo-form-group { margin-bottom: 15px; }
.ketheyo-form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
.ketheyo-form-group .ketheyo-input { width: 100%; box-sizing: border-box; }
.ketheyo-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Login Box */
.ketheyo-login-wrapper { max-width: 420px; margin: 40px auto; }
.ketheyo-login-box { background: #fff; padding: 30px; border-radius: 12px; border: 1px solid var(--k-border); box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.ketheyo-login-box input[type="text"], .ketheyo-login-box input[type="password"] { width: 100%; padding: 10px; border: 1px solid var(--k-border); border-radius: 6px; margin-top: 5px; }
.ketheyo-login-box input[type="submit"] { width: 100%; background: var(--k-primary); color: #fff; border: none; padding: 12px; border-radius: 6px; font-weight: 600; cursor: pointer; margin-top: 15px; }